Descriptive statistics of the variables used for Douro (434 observations) and Vinhos Verdes (299 observations) regions (years 2014 and 2015).
-Preparation and fabrications of nanolayers with different methods.\n
-Description of recent achievements related to very important III-V heterostructures.\n
-Descriptions of mechanical, thermal, optoelectronic, photocatalytic, and tribological properties of nanolayered structures.\n
Some environmentally friendly applications are also treated in this book.\nThe presented book provides a description of specific and original results obtained by authors. We hope that the volume will be of interest for a wide range of readers working in the field of material science.",isbn:"978-953-51-3144-1",printIsbn:"978-953-51-3143-4",pdfIsbn:"978-953-51-4829-6",doi:"10.5772/65465",price:119,priceEur:129,priceUsd:155,slug:"nanoscaled-films-and-layers",numberOfPages:298,isOpenForSubmission:!1,isInWos:null,isInBkci:!1,hash:"f43ea8f3894ee0c3e44b2351bf3447d5",bookSignature:"Laszlo Nanai",publishedDate:"May 24th 2017",coverURL:"https://cdn.intechopen.com/books/images_new/5789.jpg",numberOfDownloads:19070,numberOfWosCitations:13,numberOfCrossrefCitations:15,numberOfCrossrefCitationsByBook:0,numberOfDimensionsCitations:31,numberOfDimensionsCitationsByBook:0,hasAltmetrics:0,numberOfTotalCitations:59,isAvailableForWebshopOrdering:!0,dateEndFirstStepPublish:"September 26th 2016",dateEndSecondStepPublish:"October 17th 2016",dateEndThirdStepPublish:"January 13th 2017",dateEndFourthStepPublish:"April 13th 2017",dateEndFifthStepPublish:"June 12th 2017",currentStepOfPublishingProcess:5,indexedIn:"1,2,3,4,5,6,7",editedByType:"Edited by",kuFlag:!1,featuredMarkup:null,editors:[{id:"61978",title:"Prof.",name:"Laszlo",middleName:null,surname:"Nanai",slug:"laszlo-nanai",fullName:"Laszlo Nanai",profilePictureURL:"https://mts.intechopen.com/storage/users/61978/images/system/61978.png",biography:"Prof. Nanai was born on April 19, 1948, in Csopak (Hungary). He studied physics (MSc) at Saint Petersburg State University (RU), and his PhD degree and habilitation in the field of quantum electronics were obtained at Lebedev Physical Institute, Moscow (RU), and Szeged University (H). \r\n\r\nHe is a specialist in the fields of solid-state physics, laser-matter interaction fabrication and characterization of nanostructures. He has written over 170 scientific publications including about 10 books and chapters in books and conference proceedings.",institutionString:"University of Szeged",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"2",totalChapterViews:"0",totalEditedBooks:"2",institution:{name:"University of Szeged",institutionURL:null,country:{name:"Hungary"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,coeditorOne:null,coeditorTwo:null,coeditorThree:null,coeditorFour:null,coeditorFive:null,topics:[{id:"1169",title:"Condensed Matter Physics",slug:"nanotechnology-and-nanomaterials-material-science-condensed-matter-physics"}],chapters:[{id:"54288",title:"Formation of Nanolayer on Surface of EPD Coatings Based on Poly-Ether-Ether-Ketone",doi:"10.5772/67570",slug:"formation-of-nanolayer-on-surface-of-epd-coatings-based-on-poly-ether-ether-ketone",totalDownloads:1416,totalCrossrefCites:1,totalDimensionsCites:2,hasAltmetrics:0,abstract:"Poly-ether-ether-ketone (PEEK) is a high performance polymer with many intrinsic properties. When it is used in the form of coating, an improvement of some of its functional properties was achieved by forming a surface nanolayer. In this chapter, it will be described how it was possible to obtain this result. Firstly, three kinds of PEEK composite coatings were deposited by electrophoretic deposition, adding alumina particles, polytetrafluoroethylene (PTFE) and lignin to PEEK. Then, the composite coatings were thermal treated in a furnace. Therefore, surface nanostructure and chemical composition of these PEEK composite coatings were modified with respect to bulk coatings, due to interaction between PEEK chain and secondary phase, emphasised by the thermal treatment conditions. Experimental evidence of the formation of surface nanolayer was provided by SEM, TEM, GIXRD, ATR-FTIR and XPS characterisations. Functional characterisations demonstrated that wear resistance—in the presence of alumina particles—hydrophobicity—in the presence of PTFE—and corrosion resistance—in the presence of Lignin—were increased with respect to pure PEEK.",signatures:"Maria Federica De Riccardis",downloadPdfUrl:"/chapter/pdf-download/54288",previewPdfUrl:"/chapter/pdf-preview/54288",authors:[{id:"77857",title:"Dr.",name:"M. Federica",surname:"De Riccardis",slug:"m.-federica-de-riccardis",fullName:"M. Federica De Riccardis"}],corrections:null},{id:"54678",title:"Electroless Deposition of Nanolayered Metallic Coatings",doi:"10.5772/intechopen.68220",slug:"electroless-deposition-of-nanolayered-metallic-coatings",totalDownloads:3414,totalCrossrefCites:5,totalDimensionsCites:8,hasAltmetrics:1,abstract:"Electroless metallic coating is referred as the deposition of a substrate material by the process of chemical or autocatalytic reduction of aqueous metal ions deposited to a substrate material without any external supply of power. Electroless nickel alloys are generally considered synonymous to the word “electroless coating” as ~90% of productions in industries are of this alloy coating. Rest of the electroless metallic coatings includes gold, copper, palladium, cobalt, silver, etc. These electroless metallic coatings (other than electroless nickel coatings) are also one of the vibrant areas in the field of materials properties and surface engineering research. From the year 2000 to till date, nearly 1000 SCI indexed research papers were published on this topic. However, no comprehensive studies about the recent progress on this topic were reported elsewhere so far. In this context, the present chapter aims to give a complete overview on various aspects of the rest of the electroless metallic nanocoatings/layer as a whole. More importance will be on the recent developments of the nanocharacteristics and future scopes.",signatures:"Jothi Sudagar, Rajendraprasad Tamilarasan, Udaykumar Sanjith, Raj\nRajendran and Ravi Kumar",downloadPdfUrl:"/chapter/pdf-download/54678",previewPdfUrl:"/chapter/pdf-preview/54678",authors:[{id:"202302",title:"Dr.",name:"Jothi",surname:"Sudagar",slug:"jothi-sudagar",fullName:"Jothi Sudagar"},{id:"203599",title:"Dr.",name:"Tamilarasan",surname:"Tr",slug:"tamilarasan-tr",fullName:"Tamilarasan Tr"},{id:"203600",title:"MSc.",name:"Sanjith",surname:"U",slug:"sanjith-u",fullName:"Sanjith U"},{id:"203601",title:"Prof.",name:"Rajendran",surname:"R",slug:"rajendran-r",fullName:"Rajendran R"},{id:"203602",title:"Prof.",name:"Ravi Kumar",surname:"Nv",slug:"ravi-kumar-nv",fullName:"Ravi Kumar Nv"}],corrections:null},{id:"54328",title:"Laser Prepared Thin Films for Optoelectronic Applications",doi:"10.5772/67659",slug:"laser-prepared-thin-films-for-optoelectronic-applications",totalDownloads:1490,totalCrossrefCites:1,totalDimensionsCites:2,hasAltmetrics:0,abstract:"Laser techniques such as pulsed laser deposition, combinatorial pulsed laser deposition, and matrix-assisted pulsed laser evaporation were used to deposit thin films for optoelectronic applications. High-quality transparent conductor oxide films ITO, AZO, and IZO were deposited on polyethylene terephthalate by PLD, an important experimental parameter being the target-substrate distance. The TCO films present a high transparency (>95%) and a reduced electrical resistivity (5 × 10−4 Ωcm) characteristics very useful for their integration in the flexible electronics. InxZn1−xO films with a compositional library were obtained by CPLD. These films are featured by a high optical transmission (>95%), the lowest resistivity (8.6 × 10−4 Ωcm) being observed for an indium content of about 44–49 at.%. Organic heterostructures based on arylenevinylene oligomers (P78 and P13) or arylene polymers (AMC16 and AMC22) were obtained by MAPLE. In the case of ITO/P78/Alq3/Al heterostructures, a higher current value is obtained when the film thickness increases. Also, a photovoltaic effect was observed for heterostructures based on AMC16 or AMC22 deposited on ITO covered by a thin layer of PEDOT:PSS. Due to their optical and electrical properties, such organic heterostructures can be interesting for the organic photovoltaic cells (OPV) applications.",signatures:"Marcela Socol, Gabriel Socol, Nicoleta Preda, Anca Stanculescu and\nFlorin Stanculescu",downloadPdfUrl:"/chapter/pdf-download/54328",previewPdfUrl:"/chapter/pdf-preview/54328",authors:[{id:"21373",title:"Dr.",name:"Anca",surname:"Stanculescu",slug:"anca-stanculescu",fullName:"Anca Stanculescu"},{id:"21611",title:"Dr.",name:"Florin",surname:"Stanculescu",slug:"florin-stanculescu",fullName:"Florin Stanculescu"},{id:"178419",title:"Dr.",name:"Gabriel",surname:"Socol",slug:"gabriel-socol",fullName:"Gabriel Socol"},{id:"184343",title:"Dr.",name:"Nicoleta",surname:"Preda",slug:"nicoleta-preda",fullName:"Nicoleta Preda"},{id:"198589",title:"Dr.",name:"Marcela",surname:"Socol",slug:"marcela-socol",fullName:"Marcela Socol"}],corrections:null},{id:"54765",title:"Heteroepitaxy of III–V Zinc Blende Semiconductors on Nanopatterned Substrates",doi:"10.5772/67572",slug:"heteroepitaxy-of-iii-v-zinc-blende-semiconductors-on-nanopatterned-substrates",totalDownloads:1532,totalCrossrefCites:2,totalDimensionsCites:6,hasAltmetrics:0,abstract:"In the last decade, zinc blende structure III–V semiconductors have been increasingly utilized for the realization of high‐performance optoelectronic applications because of their tunable bandgaps, high carrier mobility and the absence of piezoelectric fields. However, the integration of III–V devices on the Si platform commonly used for CMOS electronic circuits still poses a challenge, due to the large densities of mismatch‐related defects in heteroepitaxial III–V layers grown on planar Si substrates. A promising method to obtain thin III–V layers of high crystalline quality is the growth on nanopatterned substrates. In this approach, defects can be effectively eliminated by elastic lattice relaxation in three dimensions or confined close to the substrate interface by using aspect‐ratio trapping masks. As a result, an etch pit density as low as 3.3 × 105 cm−2 and a flat surface of submicron GaAs layers have been accomplished by growth onto a SiO2 nanohole film patterned Si(001) substrate, where the threading defects are trapped at the SiO2 mask sidewalls. An open issue that remains to be resolved is to gain a better understanding of the interplay between mask shape, growth conditions and formation of coalescence defects during mask overgrowth in order to achieve thin device quality III–V layers.",signatures:"Thomas Riedl and Jörg K.N. Lindner",downloadPdfUrl:"/chapter/pdf-download/54765",previewPdfUrl:"/chapter/pdf-preview/54765",authors:[{id:"196852",title:"Dr.",name:"Thomas",surname:"Riedl",slug:"thomas-riedl",fullName:"Thomas Riedl"},{id:"197870",title:"Prof.",name:"Jörg K.N.",surname:"Lindner",slug:"jorg-k.n.-lindner",fullName:"Jörg K.N. Lindner"}],corrections:null},{id:"54687",title:"Surface Modification of III-V Compounds Substrates for Processing Technology",doi:"10.5772/67916",slug:"surface-modification-of-iii-v-compounds-substrates-for-processing-technology",totalDownloads:1953,totalCrossrefCites:1,totalDimensionsCites:2,hasAltmetrics:0,abstract:"Semiconductor materials became a part of nowadays life due to useful applications caused by characteristic properties as variable conductivity and sensitivity to light or heat. Electrical properties of a semiconductor can be modified by doping or by the application of electric fields or light; and from this view, devices made from semiconductors can be used for amplification or energy conversion. The compound semiconductor materials from III-V class experienced a qualitative leap from promising potential to nowadays technologic environment. The III-V semiconductor compounds are the material bases for electronic and optoelectronic devices such as high-electron-mobility transistors (HEMT), bipolar heterostructure transistors, IR light-emitting diodes, heterostructure lasers, Gunn diodes, Schottky devices, photodetectors, and heterostructure solar cells for terrestrial and spatial operating conditions. Among III-V semiconductor compounds, gallium arsenide (GaAs) and gallium antimonide (GaSb) are of special interest as a substrate material due to the lattice parameter match to solid solutions (ternary and quaternary) whose band gaps cover a wide spectral range from 0.8 to 4.3 μm in the case of GaSb. The solid/solid interfaces could play a key part in the development of microelectronic device technology. In most of the cases, the initial surface of III-V compounds exposed to laboratory conditions is covered usually with native oxide layers. Various techniques for performing the surface cleaning process are used, e.g., controlled chemical etching, in situ ion sputtering, coupled with controlled annealing in vacuum and often these classic techniques are combined in order to prepare an eligible semiconductor surface to be exposed to a technological device chain. The evolution of surface native oxides in different cleaning procedures and the characteristics of as-prepared semiconductor surface were investigated by modern surface investigation techniques, i.e., X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), Rutherford backscattering spectrometry (RBS) combined with electrical characterization. Surface preparation of semiconductors in particular for III-V compounds is a necessary requirement in device technology due to the existence of surface impurities and the presence of native oxides. The impurities can affect the adherence of ohmic and Schottky contacts and due to thermal decomposition of native oxides (e.g., GaSb) it also affect the interface metal/semiconductor. The practical experience reveals that the simple preparation of a surface is a nonrealistic expectation, i.e., surface preparation is a result of combined treatments, namely chemical etching and thermal treatment, ion beam sputtering and thermal reconstruction procedure.",signatures:"Rodica V. Ghita, Constantin Logofatu, Constantin-Catalin Negrila,\nLucian Trupina and Costel Cotirlan-Simioniuc",downloadPdfUrl:"/chapter/pdf-download/54687",previewPdfUrl:"/chapter/pdf-preview/54687",authors:[{id:"50919",title:"Dr.",name:"Rodica V.",surname:"Ghita",slug:"rodica-v.-ghita",fullName:"Rodica V. Ghita"},{id:"197743",title:"Dr.",name:"Lucian",surname:"Trupina",slug:"lucian-trupina",fullName:"Lucian Trupina"},{id:"198134",title:"Dr.",name:"Constantin",surname:"Logofatu",slug:"constantin-logofatu",fullName:"Constantin Logofatu"},{id:"198135",title:"Dr.",name:"Constantin-Catalin",surname:"Negrila",slug:"constantin-catalin-negrila",fullName:"Constantin-Catalin Negrila"},{id:"198140",title:"Dr.",name:"Costel",surname:"Cotirlan-Simioniuc",slug:"costel-cotirlan-simioniuc",fullName:"Costel Cotirlan-Simioniuc"}],corrections:null},{id:"54581",title:"Nanoscaled Fluorescent Films and Layers for Detection of Environmental Pollutants",doi:"10.5772/67869",slug:"nanoscaled-fluorescent-films-and-layers-for-detection-of-environmental-pollutants",totalDownloads:1786,totalCrossrefCites:1,totalDimensionsCites:1,hasAltmetrics:0,abstract:"Hazardous gas and ion pollutants are the most serious environmental problems around the world. It is of great importance to develop devices for easy detection of these hazardous substances. Fluorescence technology with high resolution and operational simplicity has attracted a lot of attention in recent years. Organic fluorescent dyes absorb/emit lights within a broad wavelength range, which is suitable for various demands. Chromophores, such as perylene, cyanine dyes, spiropyran, and so on, are widely studied as fluorescent probes for gases and ions. The dyes could respond to external stimuli through structural changes of the conjugated chromophore itself or the attached functional groups, leading to detectable spectral changes. Organic dyes are incorporated into nanoscaled films and layers, which are portable and durable for effective sensing in complex environments. In this chapter, preparation and application of fluorescent films and layers (FFL) for gaseous/ionic detection are reviewed. We discuss the response mechanism of fluorescent dyes, the fabrication of nanoscaled FFL, and some examples of FFL for the detection of gas and ion pollutants.",signatures:"Meizhen Yin and Chendong Ji",downloadPdfUrl:"/chapter/pdf-download/54581",previewPdfUrl:"/chapter/pdf-preview/54581",authors:[{id:"197509",title:"Prof.",name:"Meizhen",surname:"Yin",slug:"meizhen-yin",fullName:"Meizhen Yin"},{id:"200372",title:"Mr.",name:"Chendong",surname:"Ji",slug:"chendong-ji",fullName:"Chendong Ji"}],corrections:null},{id:"54290",title:"Mechanical Nanoprocessing and Nanoviscoelasticity of Surface- Modified Polycarbonate",doi:"10.5772/67512",slug:"mechanical-nanoprocessing-and-nanoviscoelasticity-of-surface-modified-polycarbonate",totalDownloads:1260,totalCrossrefCites:0,totalDimensionsCites:0,hasAltmetrics:0,abstract:"To clarify their potential as atomic force microscope (AFM) memory media, the nanometer‐scale mechanical processing properties of untreated and fluorocarbon plasma‐treated polycarbonate samples were determined via the sliding of an AFM tip. The surface energy of the polycarbonate was reduced by the fluorocarbon plasma treatment, as well as the force necessary for processing. Nanometer‐scale precise processing of the polycarbonate was realized after the fluorocarbon plasma treatment, and the interval pitch in the formation of lines, spaces, and nanometer‐scale fine dots was minimized to 60 nm with these samples. The viscoelastic properties of the fluorinated polycarbonate were evaluated using an AFM in force modulation mode. The fluorocarbon plasma treatment reduced the friction force of the polycarbonate sample and improved its wear resistance, which caused the friction durability corresponding to the reliability of data reproduction to be markedly improved. These results show that high‐density recording can be realized by nanometer‐scale processing of fluorocarbon plasma‐treated polycarbonate samples.",signatures:"Shojiro Miyake and Mei Wang",downloadPdfUrl:"/chapter/pdf-download/54290",previewPdfUrl:"/chapter/pdf-preview/54290",authors:[{id:"22097",title:"Dr.",name:"Mei",surname:"Wang",slug:"mei-wang",fullName:"Mei Wang"}],corrections:null},{id:"54966",title:"Green Intelligent Nanomaterials by Design (Using Nanoparticulate/2D-Materials Building Blocks) Current Developments and Future Trends",doi:"10.5772/intechopen.68434",slug:"green-intelligent-nanomaterials-by-design-using-nanoparticulate-2d-materials-building-blocks-current",totalDownloads:1492,totalCrossrefCites:1,totalDimensionsCites:2,hasAltmetrics:0,abstract:"Feasibility of designing and synthesizing ‘smart’ and ‘intelligent’ materials using nanostructured building blocks has been examined here based on the current status of the progress made in this context. The added advantages of using 2D layered/nonlayered materials along with phytosomal species derived from natural plants are highlighted with special reference to their better programmability along with minimum toxicity in biomedical applications. The current developments taking place in their upscaled productions are also included while assessing their upcoming industrial usages in diverse fields.",signatures:"Dinesh Kumar and Shamim Ahmad",downloadPdfUrl:"/chapter/pdf-download/54966",previewPdfUrl:"/chapter/pdf-preview/54966",authors:[{id:"196523",title:"Dr.",name:"Shamim",surname:"Ahmad",slug:"shamim-ahmad",fullName:"Shamim Ahmad"},{id:"205981",title:"Prof.",name:"Dinesh",surname:"Kumar",slug:"dinesh-kumar",fullName:"Dinesh Kumar"}],corrections:null},{id:"54751",title:"Molybdenum Disulfide-Based Photocatalysis:Bulk-to-Single Layer Structure and Related Photomechansim for Environmental Applications",doi:"10.5772/67825",slug:"molybdenum-disulfide-based-photocatalysis-bulk-to-single-layer-structure-and-related-photomechansim-",totalDownloads:1991,totalCrossrefCites:2,totalDimensionsCites:5,hasAltmetrics:0,abstract:"Bulk-to-single layer molybdenum disulfide (MoS2) is widely used as a robust candidate for photodegradation of organic pollutants, hydrogen production, and CO2 reduction. This material features active edge sites and narrow band gap features, which are useful for generating reactive species in aqueous suspensions. However, the high-charge carrier recombination, photocorrosion, unstable sulfide state, and formation of Mo-S-O links during photocatalytic reactions limit its applicability. Thus, research has focused on improving the performance of MoS2 by tailoring its bulk-to-single layer structure and combining it with other semiconductor materials to improve the photocatalytic performance. Different strategies have been successfully applied to enhance the photocatalytic activity of MoS2, including tailoring of the surface morphology, formation of heterojunctions with other semiconductors, doping, and modification with excess sulfur or carbon nanostructures. This review describes the influence of starting precursors, sulfur sources, and synthetic methods to obtain heterostructured morphologies and study their impact on the photocatalytic efficiency. Finally, the relevance of crystal facets and defects in photocatalysis is outlined. Future applications of MoS2 with tailoring and tuning physicochemical properties are highlighted.",signatures:"Surya Veerendra Prabhakar Vattikuti and Chan Byon",downloadPdfUrl:"/chapter/pdf-download/54751",previewPdfUrl:"/chapter/pdf-preview/54751",authors:[{id:"196995",title:"Prof.",name:"S V Prabhakar",surname:"Vattikuti",slug:"s-v-prabhakar-vattikuti",fullName:"S V Prabhakar Vattikuti"},{id:"199682",title:"Prof.",name:"Chan",surname:"Byon",slug:"chan-byon",fullName:"Chan Byon"}],corrections:null},{id:"54449",title:"Advance in Tribology Study of Polyelectrolyte Multilayers",doi:"10.5772/67571",slug:"advance-in-tribology-study-of-polyelectrolyte-multilayers",totalDownloads:1380,totalCrossrefCites:0,totalDimensionsCites:1,hasAltmetrics:0,abstract:"This review introduced the preparation and structural characterization of polyelectrolyte multilayers in recent years and also summarized the tribology research progress of the polyelectrolyte multilayers, including tribological properties, surface adhesion characteristics, and wear resistance properties. Statistics analysis indicated that nanoparticles‐doped polyelectrolyte multilayers present better friction and wear performance than pristine polyelectrolyte multilayers. Furthermore, the in situ growth method resulted in improved structural order of nanoparticles composite molecular deposition film. In situ nanoparticles not only reduced the molecular deposition film surface adhesion force and friction force but also significantly improved the life of wear resistance. That was due to the nanoparticles that possessed a good load‐carrying capacity and reduced the mobility of the polymer‐chain segments, which can undergo reversible shear deformation. Based on this, further research direction of in situ nanoparticles molecular deposition film was proposed.",signatures:"Yanbao Guo and Deguo Wang",downloadPdfUrl:"/chapter/pdf-download/54449",previewPdfUrl:"/chapter/pdf-preview/54449",authors:[{id:"196649",title:"Dr.",name:"Yanbao",surname:"Guo",slug:"yanbao-guo",fullName:"Yanbao Guo"},{id:"197584",title:"Prof.",name:"Deguo",surname:"Wang",slug:"deguo-wang",fullName:"Deguo Wang"}],corrections:null},{id:"54123",title:"Thermal Radiative Wavelength Selectivity of Nanostructured Layered Media",doi:"10.5772/67395",slug:"thermal-radiative-wavelength-selectivity-of-nanostructured-layered-media",totalDownloads:1357,totalCrossrefCites:1,totalDimensionsCites:2,hasAltmetrics:0,abstract:"Thermal radiative transport yields unique thermal characteristics of microscopic thin films—wavelength selectivity. This chapter focuses on a methodology about adjusting the wavelength selectivity of thin films embedded with nanoparticles in the far‐field and near‐field regimes. For nanostructured layered media doped with nanoparticles, Maxwell‐Garnett‐Mie theory is applied to determine the effective dielectric function for the calculation of radiative thermal transport. The thermal radiative wavelength selectivity can be affected by volume fraction and/or the size of the embedded nanoparticles in thin films. To characterize wavelength selectivity and optical property of nanostructured materials, both real and imaginary parts of effective refractive index need to be analyzed. It has been shown that the nanoparticles made of polar or metallic materials have different influence on thermal radiative wavelength selectivity of microscopic thin films.",signatures:"Yi Zheng",downloadPdfUrl:"/chapter/pdf-download/54123",previewPdfUrl:"/chapter/pdf-preview/54123",authors:[{id:"197058",title:"Prof.",name:"Yi",surname:"Zheng",slug:"yi-zheng",fullName:"Yi Zheng"}],corrections:null}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"},subseries:null,tags:null},relatedBooks:[{type:"book",id:"7194",title:"Methods for Film Synthesis and Coating Procedures",subtitle:null,isOpenForSubmission:!1,hash:"0278e5a9a9d429a23692d1ce9bae2c2c",slug:"methods-for-film-synthesis-and-coating-procedures",bookSignature:"László Nánai, Aneeya Samantara, László Fábián and Satyajit Ratha",coverURL:"https://cdn.intechopen.com/books/images_new/7194.jpg",editedByType:"Edited by",editors:[{id:"61978",title:"Prof.",name:"Laszlo",surname:"Nanai",slug:"laszlo-nanai",fullName:"Laszlo Nanai"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3621",title:"Silver Nanoparticles",subtitle:null,isOpenForSubmission:!1,hash:null,slug:"silver-nanoparticles",bookSignature:"David Pozo Perez",coverURL:"https://cdn.intechopen.com/books/images_new/3621.jpg",editedByType:"Edited by",editors:[{id:"6667",title:"Dr.",name:"David",surname:"Pozo",slug:"david-pozo",fullName:"David Pozo"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"397",title:"Nanofibers",subtitle:"Production, Properties and Functional Applications",isOpenForSubmission:!1,hash:"934fe33b73b2ecba961c67d5a90021ec",slug:"nanofibers-production-properties-and-functional-applications",bookSignature:"Tong Lin",coverURL:"https://cdn.intechopen.com/books/images_new/397.jpg",editedByType:"Edited by",editors:[{id:"49937",title:"Dr.",name:"Tong",surname:"Lin",slug:"tong-lin",fullName:"Tong Lin"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"1045",title:"Nanocomposites and Polymers with Analytical Methods",subtitle:null,isOpenForSubmission:!1,hash:"65d477e855685ea85913e5aba0c5217e",slug:"nanocomposites-and-polymers-with-analytical-methods",bookSignature:"John Cuppoletti",coverURL:"https://cdn.intechopen.com/books/images_new/1045.jpg",editedByType:"Edited by",editors:[{id:"49991",title:"Dr.",name:"John",surname:"Cuppoletti",slug:"john-cuppoletti",fullName:"John Cuppoletti"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3200",title:"Nanofibers",subtitle:null,isOpenForSubmission:!1,hash:"97487143b896780afaf08cfd67cd1eec",slug:"nanofibers",bookSignature:"Ashok Kumar",coverURL:"https://cdn.intechopen.com/books/images_new/3200.jpg",editedByType:"Edited by",editors:[{id:"7718",title:"Professor",name:"Ashok",surname:"Kumar",slug:"ashok-kumar",fullName:"Ashok Kumar"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"191",title:"Advances in Nanocomposite Technology",subtitle:null,isOpenForSubmission:!1,hash:"4dc3407e602cdd348af663727baebe3d",slug:"advances-in-nanocomposite-technology",bookSignature:"Abbass Hashim",coverURL:"https://cdn.intechopen.com/books/images_new/191.jpg",editedByType:"Edited by",editors:[{id:"6700",title:"Dr.",name:"Abbass A.",surname:"Hashim",slug:"abbass-a.-hashim",fullName:"Abbass A. Hashim"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3077",title:"Syntheses and Applications of Carbon Nanotubes and Their Composites",subtitle:null,isOpenForSubmission:!1,hash:"38dd4fb088a27b2552bf3d371e8c2872",slug:"syntheses-and-applications-of-carbon-nanotubes-and-their-composites",bookSignature:"Satoru Suzuki",coverURL:"https://cdn.intechopen.com/books/images_new/3077.jpg",editedByType:"Edited by",editors:[{id:"30519",title:"Dr.",name:"Satoru",surname:"Suzuki",slug:"satoru-suzuki",fullName:"Satoru Suzuki"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3156",title:"Nanowires",subtitle:"Science and Technology",isOpenForSubmission:!1,hash:"1916d90306aa50f0cae870c88e7550fa",slug:"nanowires-science-and-technology",bookSignature:"Nicoleta Lupu",coverURL:"https://cdn.intechopen.com/books/images_new/3156.jpg",editedByType:"Edited by",editors:[{id:"6995",title:"Dr.",name:"Nicoleta",surname:"Lupu",slug:"nicoleta-lupu",fullName:"Nicoleta Lupu"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3558",title:"Advances in Graphene Science",subtitle:null,isOpenForSubmission:!1,hash:"f3a2158260a79c0fc8a4298864aa7dcd",slug:"advances-in-graphene-science",bookSignature:"Mahmood Aliofkhazraei",coverURL:"https://cdn.intechopen.com/books/images_new/3558.jpg",editedByType:"Edited by",editors:[{id:"155413",title:"Dr.",name:"Mahmood",surname:"Aliofkhazraei",slug:"mahmood-aliofkhazraei",fullName:"Mahmood Aliofkhazraei"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"861",title:"Nanomaterials",subtitle:null,isOpenForSubmission:!1,hash:"f32b97a9aa541939cb212373d471d477",slug:"nanomaterials",bookSignature:"Mohammed Muzibur Rahman",coverURL:"https://cdn.intechopen.com/books/images_new/861.jpg",editedByType:"Edited by",editors:[{id:"24438",title:"Prof.",name:"Mohammed Muzibur",surname:"Rahman",slug:"mohammed-muzibur-rahman",fullName:"Mohammed Muzibur Rahman"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}],ofsBooks:[]},correction:{item:{id:"76285",slug:"corrigendum-evidence-based-practice-and-trends-in-visual-rehabilitation-for-patients-with-age-related-macular-de",title:"Corrigendum: Evidence-Based Practice and Trends in Visual Rehabilitation for Patients with Age-Related Macular De",doi:null,correctionPDFUrl:"https://cdn.intechopen.com/pdfs/76285.pdf\r\n",downloadPdfUrl:"/chapter/pdf-download/76285",previewPdfUrl:"/chapter/pdf-preview/76285",totalDownloads:null,totalCrossrefCites:null,bibtexUrl:"/chapter/bibtex/76285",risUrl:"/chapter/ris/76285",chapter:{id:"75711",slug:"evidence-based-practice-and-trends-in-visual-rehabilitation-for-patients-with-age-related-macular-de",signatures:"Luis Leal Vega, Irene Alcoceba Herrero, Adrián Martín Gutiérrez, Joaquín Herrera Medina, Natalia Martín Cruz, Juan F. Arenillas Lara and María Begoña Coco Martín",dateSubmitted:"October 19th 2020",dateReviewed:"February 24th 2021",datePrePublished:"March 23rd 2021",datePublished:null,book:{id:"10344",title:"Recent Advances and New Perspectives in Managing Macular Degeneration",subtitle:null,fullTitle:"Recent Advances and New Perspectives in Managing Macular Degeneration",slug:null,publishedDate:null,bookSignature:"Prof. Pinakin Gunvant Gunvant Davey",coverURL:"https://cdn.intechopen.com/books/images_new/10344.jpg",licenceType:"CC BY 3.0",editedByType:null,editors:[{id:"48794",title:"Prof.",name:"Pinakin Gunvant",middleName:"Gunvant",surname:"Davey",slug:"pinakin-gunvant-davey",fullName:"Pinakin Gunvant Davey"}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"}},authors:null}},chapter:{id:"75711",slug:"evidence-based-practice-and-trends-in-visual-rehabilitation-for-patients-with-age-related-macular-de",signatures:"Luis Leal Vega, Irene Alcoceba Herrero, Adrián Martín Gutiérrez, Joaquín Herrera Medina, Natalia Martín Cruz, Juan F. Arenillas Lara and María Begoña Coco Martín",dateSubmitted:"October 19th 2020",dateReviewed:"February 24th 2021",datePrePublished:"March 23rd 2021",datePublished:null,book:{id:"10344",title:"Recent Advances and New Perspectives in Managing Macular Degeneration",subtitle:null,fullTitle:"Recent Advances and New Perspectives in Managing Macular Degeneration",slug:null,publishedDate:null,bookSignature:"Prof. Pinakin Gunvant Gunvant Davey",coverURL:"https://cdn.intechopen.com/books/images_new/10344.jpg",licenceType:"CC BY 3.0",editedByType:null,editors:[{id:"48794",title:"Prof.",name:"Pinakin Gunvant",middleName:"Gunvant",surname:"Davey",slug:"pinakin-gunvant-davey",fullName:"Pinakin Gunvant Davey"}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"}},authors:null},book:{id:"10344",title:"Recent Advances and New Perspectives in Managing Macular Degeneration",subtitle:null,fullTitle:"Recent Advances and New Perspectives in Managing Macular Degeneration",slug:null,publishedDate:null,bookSignature:"Prof. Pinakin Gunvant Gunvant Davey",coverURL:"https://cdn.intechopen.com/books/images_new/10344.jpg",licenceType:"CC BY 3.0",editedByType:null,editors:[{id:"48794",title:"Prof.",name:"Pinakin Gunvant",middleName:"Gunvant",surname:"Davey",slug:"pinakin-gunvant-davey",fullName:"Pinakin Gunvant Davey"}],productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"}}},ofsBook:{item:{type:"book",id:"11579",leadTitle:null,title:"Animal Welfare - New Insights",subtitle:null,reviewType:"peer-reviewed",abstract:"
\r\n\tAt present, especially in the last years, the achievements made by scientists have been exceptional, leading to major advancements in the fast-growing field of animal science. Therefore, experimental animals play a very important role in scientific research.
\r\n\r\n\tPigs, rodents, and aquaculture animals are important experimental animals. To obtain the accuracy of the experimental data and meet the basic quality requirements of biological experiment materials, the quality of the experimental animals for the biological experiments should reach the level of specific pathogen-free (SPF). These SPF animals are applied not only to meet the demand for biomedical research but can also be used for the research and the development of drugs and vaccines. Furthermore, as animal welfare has gradually attracted attention in recent years, the reduction of animal pain and quantity and the increase of the experimental refinement are important issues in the 3R (replacement, reduction, and refinement) of animal welfare.
\r\n\r\n\tAnimal testing is an important verification stage before the listing of biomedical products. This book will focus on new insights, novel developments, current challenges, latest discoveries, recent advances, and future perspectives in the field of animal welfare.
",isbn:"978-1-83768-202-7",printIsbn:"978-1-83769-983-4",pdfIsbn:"978-1-83768-203-4",doi:null,price:0,priceEur:0,priceUsd:0,slug:null,numberOfPages:0,isOpenForSubmission:!0,isSalesforceBook:!1,isNomenclature:!1,hash:"12e4f41264cbe99028655e5463fa941a",bookSignature:"Dr. Shao-Wen Hung, Dr. Chia-Chi Chen, Dr. Chung-Lun Lu and Dr. Tseng-Ting Kao",publishedDate:null,coverURL:"https://cdn.intechopen.com/books/images_new/11579.jpg",keywords:"Animal Welfare, New Insights, Experiment, Rodents, Larger Animals, Aquaculture Animals, Replacement, Reduction, Refinement, Alternative Methods, Animal Studies, Biological Experiments",numberOfDownloads:null,numberOfWosCitations:0,numberOfCrossrefCitations:null,numberOfDimensionsCitations:null,numberOfTotalCitations:null,isAvailableForWebshopOrdering:!0,dateEndFirstStepPublish:"May 4th 2022",dateEndSecondStepPublish:"July 8th 2022",dateEndThirdStepPublish:"September 6th 2022",dateEndFourthStepPublish:"November 25th 2022",dateEndFifthStepPublish:"January 24th 2023",dateConfirmationOfParticipation:null,remainingDaysToSecondStep:"7 days",secondStepPassed:!1,areRegistrationsClosed:!1,currentStepOfPublishingProcess:2,editedByType:null,kuFlag:!1,biosketch:"Dr. Hung is a pioneering researcher in animal and cell sciences. He focuses his research interests on Experimental Animals, Animal Welfare, and Epilepsy. He has authored 112 journal papers, and 12 book chapters, edited 7 books and authored 160 other publications including conference proceedings and abstracts. He is also the holder of 12 registered patents and is a member of the Chinese Society of Veterinary Sciences.",coeditorOneBiosketch:"Associate Researcher Chia-Chi Chen works in the Animal Technology Research Center, Agricultural Technology Research Institute. She is a pioneering researcher in animal science and has published many articles and books related to life science.",coeditorTwoBiosketch:"Dr. Chung-Lun Lu is a researcher at Aquaculture Technology Research Center, Agricultural Technology Research Institute. Dr. Chung-Lun Lu is a pioneering researcher in aquaculture sciences. He is the holder of some registered patents and has published many papers and books related to aquaculture science.",coeditorThreeBiosketch:"Dr. Tseng-Ting Kao is a researcher at the Animal Technology Research Center, Agricultural Technology Research Institute. Dr. Tseng-Ting Kao is a pioneering researcher in cell science. She is the holder of a few registered patents and has published many articles and books related to life science.",coeditorFourBiosketch:null,coeditorFiveBiosketch:null,editors:[{id:"51520",title:"Dr.",name:"Shao-Wen",middleName:null,surname:"Hung",slug:"shao-wen-hung",fullName:"Shao-Wen Hung",profilePictureURL:"https://mts.intechopen.com/storage/users/51520/images/system/51520.jpg",biography:"Dr. Shao-Wen Hung (DVM, Ph.D.) graduated from the Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 402, Taiwan. Currently, Dr. Shao-Wen Hung works in Animal Technology Research Center, Agricultural Technology Research Institute, Miaoli 350, Taiwan, and is also the chief of Division of Animal Industry, Animal Technology Research Center, Agricultural Technology Research Institute. Dr. Shao-Wen Hung focuses his research interests in the following fields: Fish & Shellfish Immunology, Oncology & Cancer Medicine, Veterinary Medicine & Immunology, Fish Diseases & Therapy, Flow Cytometry, Experimental Animal, Animal Welfare, and Epilepsy.",institutionString:"Agricultural Technology Research Institute",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"3",totalChapterViews:"0",totalEditedBooks:"0",institution:{name:"Agricultural Technology Research Institute",institutionURL:null,country:{name:"Taiwan"}}}],coeditorOne:{id:"326391",title:"Dr.",name:"Chia-Chi",middleName:null,surname:"Chen",slug:"chia-chi-chen",fullName:"Chia-Chi Chen",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y00002zXRnyQAG/Profile_Picture_1643271944701",biography:"Associate Researcher Chia-Chi Chen works in the Animal Technology Research Center, Agricultural Technology Research Institute. She is a pioneering researcher in animal science and has published many articles and books related to life science.",institutionString:"Agricultural Technology Research Institute",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"1",totalChapterViews:"0",totalEditedBooks:"0",institution:{name:"Agricultural Technology Research Institute",institutionURL:null,country:{name:"Taiwan"}}},coeditorTwo:{id:"117136",title:"Dr.",name:"Chung-Lun",middleName:null,surname:"Lu",slug:"chung-lun-lu",fullName:"Chung-Lun Lu",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bS6mIQAS/Profile_Picture_1643271901162",biography:"Dr. Chung-Lun Lu is a researcher in Aquaculture Technology Research Center, Agricultural Technology Research Institute. Dr. Chung-Lun Lu is a pioneering researcher in aquaculture sciences. He is the holder of some registered patents and has published many papers and books related to aquaculture science.",institutionString:"National Taiwan University",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"2",totalChapterViews:"0",totalEditedBooks:"0",institution:{name:"National Taiwan University",institutionURL:null,country:{name:"Taiwan"}}},coeditorThree:{id:"452241",title:"Dr.",name:"Tseng-Ting",middleName:null,surname:"Kao",slug:"tseng-ting-kao",fullName:"Tseng-Ting Kao",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y00003LeREsQAN/Profile_Picture_1643271866991",biography:"Dr. Tseng-Ting Kao is a researcher at the Animal Technology Research Center, Agricultural Technology Research Institute. Dr. Tseng-Ting Kao is a pioneering researcher in cell science. She is the holder of a few registered patents and has published many articles and books related to life science.",institutionString:"Agricultural Technology Research Institute",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"0",totalChapterViews:"0",totalEditedBooks:"0",institution:{name:"Agricultural Technology Research Institute",institutionURL:null,country:{name:"Taiwan"}}},coeditorFour:null,coeditorFive:null,topics:[{id:"25",title:"Veterinary Medicine and Science",slug:"veterinary-medicine-and-science"}],chapters:null,productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"},personalPublishingAssistant:{id:"278926",firstName:"Ivana",lastName:"Barac",middleName:null,title:"Ms.",imageUrl:"https://mts.intechopen.com/storage/users/278926/images/8058_n.jpg",email:"ivana.b@intechopen.com",biography:"As an Author Service Manager my responsibilities include monitoring and facilitating all publishing activities for authors and editors. From chapter submission and review, to approval and revision, copyediting and design, until final publication, I work closely with authors and editors to ensure a simple and easy publishing process. I maintain constant and effective communication with authors, editors and reviewers, which allows for a level of personal support that enables contributors to fully commit and concentrate on the chapters they are writing, editing, or reviewing. I assist authors in the preparation of their full chapter submissions and track important deadlines and ensure they are met. I help to coordinate internal processes such as linguistic review, and monitor the technical aspects of the process. As an ASM I am also involved in the acquisition of editors. Whether that be identifying an exceptional author and proposing an editorship collaboration, or contacting researchers who would like the opportunity to work with IntechOpen, I establish and help manage author and editor acquisition and contact."}},relatedBooks:[{type:"book",id:"7144",title:"Veterinary Anatomy and Physiology",subtitle:null,isOpenForSubmission:!1,hash:"75cdacb570e0e6d15a5f6e69640d87c9",slug:"veterinary-anatomy-and-physiology",bookSignature:"Catrin Sian Rutland and Valentina Kubale",coverURL:"https://cdn.intechopen.com/books/images_new/7144.jpg",editedByType:"Edited by",editors:[{id:"202192",title:"Dr.",name:"Catrin",surname:"Rutland",slug:"catrin-rutland",fullName:"Catrin Rutland"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"1591",title:"Infrared Spectroscopy",subtitle:"Materials Science, Engineering and Technology",isOpenForSubmission:!1,hash:"99b4b7b71a8caeb693ed762b40b017f4",slug:"infrared-spectroscopy-materials-science-engineering-and-technology",bookSignature:"Theophile Theophanides",coverURL:"https://cdn.intechopen.com/books/images_new/1591.jpg",editedByType:"Edited by",editors:[{id:"37194",title:"Dr.",name:"Theophile",surname:"Theophanides",slug:"theophile-theophanides",fullName:"Theophile Theophanides"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3161",title:"Frontiers in Guided Wave Optics and Optoelectronics",subtitle:null,isOpenForSubmission:!1,hash:"deb44e9c99f82bbce1083abea743146c",slug:"frontiers-in-guided-wave-optics-and-optoelectronics",bookSignature:"Bishnu Pal",coverURL:"https://cdn.intechopen.com/books/images_new/3161.jpg",editedByType:"Edited by",editors:[{id:"4782",title:"Prof.",name:"Bishnu",surname:"Pal",slug:"bishnu-pal",fullName:"Bishnu Pal"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"371",title:"Abiotic Stress in Plants",subtitle:"Mechanisms and Adaptations",isOpenForSubmission:!1,hash:"588466f487e307619849d72389178a74",slug:"abiotic-stress-in-plants-mechanisms-and-adaptations",bookSignature:"Arun Shanker and B. Venkateswarlu",coverURL:"https://cdn.intechopen.com/books/images_new/371.jpg",editedByType:"Edited by",editors:[{id:"58592",title:"Dr.",name:"Arun",surname:"Shanker",slug:"arun-shanker",fullName:"Arun Shanker"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3092",title:"Anopheles mosquitoes",subtitle:"New insights into malaria vectors",isOpenForSubmission:!1,hash:"c9e622485316d5e296288bf24d2b0d64",slug:"anopheles-mosquitoes-new-insights-into-malaria-vectors",bookSignature:"Sylvie Manguin",coverURL:"https://cdn.intechopen.com/books/images_new/3092.jpg",editedByType:"Edited by",editors:[{id:"50017",title:"Prof.",name:"Sylvie",surname:"Manguin",slug:"sylvie-manguin",fullName:"Sylvie Manguin"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"72",title:"Ionic Liquids",subtitle:"Theory, Properties, New Approaches",isOpenForSubmission:!1,hash:"d94ffa3cfa10505e3b1d676d46fcd3f5",slug:"ionic-liquids-theory-properties-new-approaches",bookSignature:"Alexander Kokorin",coverURL:"https://cdn.intechopen.com/books/images_new/72.jpg",editedByType:"Edited by",editors:[{id:"19816",title:"Prof.",name:"Alexander",surname:"Kokorin",slug:"alexander-kokorin",fullName:"Alexander Kokorin"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"2270",title:"Fourier Transform",subtitle:"Materials Analysis",isOpenForSubmission:!1,hash:"5e094b066da527193e878e160b4772af",slug:"fourier-transform-materials-analysis",bookSignature:"Salih Mohammed Salih",coverURL:"https://cdn.intechopen.com/books/images_new/2270.jpg",editedByType:"Edited by",editors:[{id:"111691",title:"Dr.Ing.",name:"Salih",surname:"Salih",slug:"salih-salih",fullName:"Salih Salih"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"117",title:"Artificial Neural Networks",subtitle:"Methodological Advances and Biomedical Applications",isOpenForSubmission:!1,hash:null,slug:"artificial-neural-networks-methodological-advances-and-biomedical-applications",bookSignature:"Kenji Suzuki",coverURL:"https://cdn.intechopen.com/books/images_new/117.jpg",editedByType:"Edited by",editors:[{id:"3095",title:"Prof.",name:"Kenji",surname:"Suzuki",slug:"kenji-suzuki",fullName:"Kenji Suzuki"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3828",title:"Application of Nanotechnology in Drug Delivery",subtitle:null,isOpenForSubmission:!1,hash:"51a27e7adbfafcfedb6e9683f209cba4",slug:"application-of-nanotechnology-in-drug-delivery",bookSignature:"Ali Demir Sezer",coverURL:"https://cdn.intechopen.com/books/images_new/3828.jpg",editedByType:"Edited by",editors:[{id:"62389",title:"PhD.",name:"Ali Demir",surname:"Sezer",slug:"ali-demir-sezer",fullName:"Ali Demir Sezer"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"872",title:"Organic Pollutants Ten Years After the Stockholm Convention",subtitle:"Environmental and Analytical Update",isOpenForSubmission:!1,hash:"f01dc7077e1d23f3d8f5454985cafa0a",slug:"organic-pollutants-ten-years-after-the-stockholm-convention-environmental-and-analytical-update",bookSignature:"Tomasz Puzyn and Aleksandra Mostrag-Szlichtyng",coverURL:"https://cdn.intechopen.com/books/images_new/872.jpg",editedByType:"Edited by",editors:[{id:"84887",title:"Dr.",name:"Tomasz",surname:"Puzyn",slug:"tomasz-puzyn",fullName:"Tomasz Puzyn"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}]},chapter:{item:{type:"chapter",id:"57326",title:"Wine Firm’s Size and Economic Performance: Evidence from Traditional Portuguese Wine Regions",doi:"10.5772/intechopen.71320",slug:"wine-firm-s-size-and-economic-performance-evidence-from-traditional-portuguese-wine-regions",body:'Over recent decades, the wine industry has been under an intense process of globalization, with an impressive increase in competition as a consequence of the new suppliers entering the market: new world wine producing countries (such as Australia, New Zealand, South Africa, Argentina, Chile, and more recently China), and at the same time, the decreasing consumption of the old world traditional wine-producing countries (namely, Italy, France, Spain, and Portugal). The opening up and globalization of the wine markets raise both challenges and opportunities to the wine regions and consequently to the respective wine firms, which must adopt strategies that address the consumer’s demand in an economic and sustainable way.
The wine market reveals itself to be an excellent example of monopolistic competition, wherein the market is determined by significant variety, differentiated by growing regions, and consumer preference/demand for taste, price, and advertising. There is not only one market for wine, but many different ones depending on price, tastes, and brands, with consumers selecting within red or white wines, or even within grape varieties. This is why “wine” is a bundle of monopolistic and competitive markets and not a single competitive or monopoly undifferentiated market.
Following Church and Ware [1], the assumption of symmetry and consumers´ taste for variety supports the essential feature of monopolistic competition, wherein every brand is in competition with each other. Consequently, the focus of the models of monopolistic competition is not typically on strategic decisions regarding to product specification or design, since the products are assumed to be equally differentiated. Instead, the model focuses on the issue of the extent of variety: the number of products available in the market. Two conditions must be satisfied to achieve equilibrium: profit maximization and free-entry condition. In the process of profit maximization, it is expected that the group of larger firms has a behavior referred to as true or perfect monopolistic competition and the group of small firms as oligopolistic, in which the equilibrium is attained whether the firms compete over price or quantity. The free-entry condition implies that the profit must be an incentive to enter or exit. The profit of an additional entrant must be nonpositive and the profit of a firm in the industry non-negative. Ignoring the integer constraint, these two considerations imply that the profit of firms in the industry must be zero, at equilibrium. Moreover, in this market structure, the number of firms depends on product elasticity substitution and on the extent of scale economies. As elasticity substitution increases, products become less differentiated, and as result, the demand becomes more elastic, reducing the market power of the firm and the equilibrium prices tend toward a state of perfect competition. This squeezes price-cost margins, reducing profitability. The opposite occurs if the elasticity substitution decreases. Otherwise, the greater the extent of economies of scale, the smaller the number of firms that will be in the industry and hence varieties, leading to an increase in prices and in the market share at which firm’s breakeven. Conversely, reduction in the extent of scale economies reduces the minimum price markup and the market share for a firm to break even, resulting in an increase in the number of firms where equilibrium occurs and in the variety of products.
Theoretically, the model of monopolistic competition justifies the coexistence of wineries of different sizes and production technologies, charging different prices for distinct wines, according to the consumer’s willingness to pay. In this scenario, the profitability could be independent of the firm’s size.
Portugal seems to be a good example of a traditional wine producing country, with a strong presence in the international market and a market structure of monopolistic competition. In 2015, there were 39,727 farms of grape vine cultivation that represented a planted area of 201,445 ha [2], the fourth largest in European Union (EU). The total production of 2015 was 6,205,756 hl [2] (fifth in the EU, after France, Italy, Spain, and Germany and 11th in the world wine production). From the total wine production (77.76% protected Designation of Origin), 70.5% is red wine, 29.5% white wine, 13.2% fortified wine, namely Port wine. The domestic consumption reached 4.94 million hectoliters (79.6% of production), and 2.8 million hectoliters were exported (45.11% of production), meaning that Portugal is both an importer and exporter [2]. The average price of exporting was 2.63 Euro/Liter, against the 0.55 Euro/Liter for importing, meaning that Portugal exports wine with a higher added value [2].
Due to the soil, climatic, social, and economic factors, Portugal is a heterogeneous wine country, with very specific conditions as testified by one of the currently most recognized Portuguese winemakers (Dirk Nieeport in [3]):
In a microeconomic level, the Portuguese wine supply is characterized by the presence of a diversified typology of economic agents [2]: warehouse, distiller, bottler, exporter/importer, producer of vinegar and wine, merchant without establishment, preparer, producer, winemaker, and winemaker bottler. Considering the classification of economic activities in the EU (NACE) in the code 11021, production of still and liquors wines, in 2015, there were 1246 active firms, according to the database
Similarly to other traditional wine countries [5], it is known that Portuguese wine firms, including the ones located in the Douro and Vinho Verde regions, embrace different marketing strategies that range from the low cost or mass market types to those based on product differentiation or a market niche. In general, the first strategy is adopted by the largest firms, which prefer to offer standardized wines and to cater to large distribution channels. On the other hand, small firms prefer to satisfy the needs of narrow markets, emphasizing the importance of differentiation based on the
Researchers in economics and management strategy showed a long interest in understanding the main determinants of the firm performance in different market structures. Two theoretical alternatives approaches have been used [7] to analyze the importance of the industry and the business unit factors in the firm performance: the paradigm structure-conduct-performance (SCP) of the industrial organization [8, 9], suggesting that the industry structure is the main determinant of performance differences across firms, and the business strategy [10, 11], assuming that the resources and capabilities are the main determinants of differences of profitability across firms.
Some studies on the agrifood sector conclude that there is a direct relation between firm size and financial performance in the food industry [e.g., 7, 12]. The findings suggest a positive relationship between firm size with return on assets (ROA) [7, 12], return on equity (ROE), and return on investment (ROI) [12] and based in arguments like greater resources and market opportunities of large firms, which enables to be more efficient in the use of inputs, to benefit from economies of scale and to a stronger market power. However, other studies [13] reported a negative relation, showing that smaller firms can obtain a better financial performance. Thus, the empirical evidence is inconclusive on the effect of firm size on the financial performance of agrifood firms, suggesting the need of additional empirical research, that takes into account both the market structure and different indexes of firm performance.
Based on information collected from the Douro and Vinho Verde wine regions, the main goal of this chapter is to analyze the economic performance of wineries, using indicators widely employed in economic and management literature and to assess the potential influence of size on economic performance. To achieve this goal, different nonparametric and parametric tests are applied to indices related to export performance, profitability, productivity, productive efficiency, and solvency.
In line with the aims of the chapter in the first step, based on information included in firm’s annual financial reports, indices are computed related to export performance, profitability, solvency ratios, labor productivity, and economic efficiency.
The index of export performance (EP), measured by the ratio between firm exports and turnover, reflects the firm’s ability to be competitive in international markets. Size is an important factor in shaping the firm’s potential for internationalization. In free markets, the size of a firm can reveal its potential market power, capability, and scale economies: all essential elements in gaining an international market. Vivas and Sousa [14] identify internationalization strategies of firms in the wine industry in Portugal, as well as the option to export to a wide range of countries, pointing out a lack of size of the production units, coupled with poor investment in the commercial area. This framework constraints the ability to compete with larger producers, more experienced in international markets and holding a more consistent commercial attitude. Therefore, it is expected that EP will be positively correlated with size.
Profitability indices measure the extent to which a business generates a profit from the resources applied to the business. Traditionally, to compute profitability, indices such as ROA (ratio between total earnings before interests and taxes and total assets), ROE (ratio between net income and total equity), and ROI (ratio between total earnings before interests and taxes and the sum of plants, equipment, and stocks) are used. In a market structure, such as monopolistic competition, where firms of different sizes coexist and survive, it is expected that there should be no strong statistical relationships between profitability and size, namely on the ROE.
Complementary to the profitability indices, the solvency ratios gauge the firms´ ability to pay all financial obligations if all assets are sold or to continue operations after financial adversity. Two ratios can be used: the leverage or debt to equity ratio (Lev) and financial autonomy or equity to asset ratio (FA). Since microfirms have difficulties in accessing market capital and/or to bank loans, it is expected that these ratios change according to size.
To estimate productivity, two measures specifically relating to labor are used: turnover per employee (T/E) and added value per Employee (AV/E). In the profit maximization strategy, it is expected that managers try to optimize the use of labor, independently of size. Consequently, the indices of productivity may or may not be related to size.
The indices of economic (productive) efficiency allow us to get information about the relative performance of a firm in comparison with the optimum (frontier) that it is possible to achieve. Based on the firms included in a technologically homogeneous sample, the frontier and, consequently, productive efficiency can be computed through parametric or nonparametric approaches. In our case, productive efficiency is computed using the data envelopment analysis (DEA), a nonparametric approach initially proposed by several authors [15, 16]. This approach has the advantage of not needing to assume a functional form to the production (cost or profit) function, since the frontier surface is constructed through linear programming. The main disadvantage is that any deviation between observed and estimated value is considered as (in)efficiency, or even as a consequence of random factors. A firm is efficient if no other firm is able to produce a higher level of output from the same input (output oriented), or a firm is efficient if it produces the same output from less input (input oriented). Following the methodology described by Sellers and Alampi-Sottini [6], we apply an input-oriented model, since the inputs are under the control of firms more than the output. Three controllable inputs (cost of raw materials, number of employees, and value of debts1) have been chosen. Moreover, the output data on annual turnover have been considered. Assuming
subject to:
where
In the second step, the data are analyzed using descriptive statistics and both nonparametric and parametric tests, in order to test if there is an association between indices and size. More specifically, since we have different groups of observations for each variable, the Kruskal-Wallis equality-of-population rank test is used. To test if there are differences between means of groups in the same variable, the Hotelling’s T2 is used. Furthermore, to check the robustness of the nonparametric tests, ordinary least squares (OLS) regression models are estimated, where the dependent variables are the indices and the explanatory variables are dummies according to size.
In accordance with the aim of the study, as well as to assure the technological homogeneity of the sample, two demarcated wine regions are considered: the Douro region and the Vinho Verde region, both in the North of Portugal. The Douro is one of the oldest world wine regions, fitting well the
Given the economic and technological differences between the two regions, it is recommended that each one of them is analyzed as a separate sample. Therefore, in order to define the respective sample of each region, we start by selecting the firms that are registered as a winery in the regulator of Port and/or still Douro wines (Port and Douro Wines Institute: www.ivdp.pt) and in the regulator of Vinho Verde (Commission of Viticulture from Vinhos Verdes region: www.vinhoverde.pt). Moreover, to overcome any possible effects of seasonality, we decided to collect economic and financial data that are available for the last 2 years, 2014 and 2015. This means that this study is carried out with a pooled sample data of firms and years, and the databases are obtained from the Financial and Economic Entrepreneurial Data Base provided by Informa Dun & Bradstreet (D&B) and reporting wine firms included in the 11,021 NACE-2009 code (production of still and liquors wines). Considering that not all the financial reports include the information required for this research, we eventually got a sample database that includes: for the Douro region, 434 pooled observations, 218 for 2014 and 216 for 20152, with 204 wine firms observed for both years and 26 for only 1 year, and for the Vinho Verde region, the sample includes a pool of 299 observations, 154 of 2014 and 145 of 2015, in a total of 162 wine firms, 137 observed for both years and 25 for only 1 year.
Table 1 shows the main descriptive statistics of the variables used, for both wine regions. The range between the minimum and the maximum, together with the comparison between the standard deviation (SD) and mean, allows us to conclude that each sample reflects a heterogeneous market structure, typical of monopolistic competition. According to the value of the mean of the variables, the firms of the Douro region are bigger than those of the Vinho Verde region (Table 1).
Variables | Minimum | Maximum | Mean | SD |
---|---|---|---|---|
Douro region | ||||
Assets (103 euro) | 3.000 | 257,010.000 | 7,886.000 | 29,006.000 |
Equity (103 euro) | −2060.000 | 184,547.000 | 4249.000 | 18,806.000 |
Investments (103 euro) | 0.100 | 220,150.000 | 6231.000 | 23,708.000 |
Turnover (103 euro) | 0.100 | 132,503.000 | 2881.000 | 12,199.000 |
Added value (103 euro) | −1,012.000 | 46,618.000 | 735.000 | 3299.000 |
Employees (#) | 1 | 593 | 16.000 | 53.000 |
Vinhos verdes region | ||||
Assets (103 euro) | 6.900 | 50,727.000 | 2137.000 | 5167.000 |
Equity (103 euro) | −1,277.000 | 31,492.000 | 966.000 | 2898.000 |
Investments (103 euro) | 0.100 | 41,583.000 | 1594.000 | 3973.000 |
Turnover (103 euro) | 0.400 | 31,999.000 | 996.000 | 3130.000 |
Added value (103 euro) | −660.000 | 13,401.000 | 265.000 | 1112.000 |
Employees (#) | 1 | 148 | 7.000 | 14.000 |
Descriptive statistics of the variables used for Douro (434 observations) and Vinhos Verdes (299 observations) regions (years 2014 and 2015).
Legend: SD – Standard Deviation.
In order to build a detailed basis of information about the market structure of each wine region, we have classified firms according their size, adopting the European Commission recommendation [18]3. This recommendation is used to obtain criteria to define the size of the firm, the number of employees, the turnover, or total assets on the balance sheet (Table 2). Consequently, these criteria should be used to analyze any industry, including in the wine business. These criteria also suggest the use of financial and productive indicators to assess the performance of the industry.
Size | Criteria |
---|---|
Micro | Employment: < 10 workers; and turnover or assets: < 2 million Euro |
Small | 10 ≤ workers < 50; and 2 ≤ turnover or assets < 50 million Euro |
Medium | 50 ≤ workers < 250; and or 50 ≤ turnover or assets < 250 million Euro |
Big | Workers ≥ 250; and or turnover or assets ≥ 250 million Euro |
Criteria to identify size of the firms using European Commission recommendation [18].
In this section, performance indices (export performance, profitability, solvency, productivity, and efficiency) are presented, both for the Douro and Vinho Verde regions (Table 3). As can been seen, the statistical descriptive measures show a highly heterogeneous industry in and for both wine regions.
Indices | Minimum | Maximum | Mean | SD |
---|---|---|---|---|
Douro region | ||||
EP | 0.000 | 0.930 | 0.180 | 0.250 |
Profitability | ||||
ROA ROE ROI | −8.415 −34.850 −10.020 | 1.060 41.170 165.840 | 0.009 0.205 0.681 | 0.430 3.180 8.920 |
Solvency | ||||
Lev FA | −258.000 −14.490 | 204.720 0.970 | 2.250 0.280 | 20.890 0.940 |
Productivity | ||||
T/E (103 Euro) AV/E (103 Euro) | 80.000 −120.706 | 2799.500 305.200 | 121.500 31.500 | 227,917.000 37,534.000 |
Efficiency | ||||
EF TE SE | 0.000 0.083 0.000 | 1.000 1.000 1.000 | 0.454 0.692 0.693 | 0.250 0.282 0.267 |
Vinhos Verdes region | ||||
EP | 0.000 | 0.993 | 0.118 | 0.203 |
Profitability | ||||
ROA ROE ROI | −1.116 −21.665 −10.295 | 0.899 8.634 4.511 | −0.005 −0.082 −0.073 | 0.163 1.800 0.904 |
Solvency | ||||
Lev FA | −18.731 −5.165 | 897.680 0.998 | 7.517 0.252 | 57.255 0.706 |
Productivity | ||||
T/E (103 Euro) AV/E (103 Euro) | 0.398 −83.004 | 3053.000 410.333 | 101.337 24.287 | 263.676 38.608 |
Efficiency | ||||
EF TE SE | 0.008 0.084 0.008 | 1.000 1.000 1.000 | 0.417 0.678 0.675 | 0.227 0.285 0.283 |
Indices of performance of Douro (434 observations) and Vinho Verde regions (years 2014 and 2015).
Legend: SD – Standard Deviation; EP - Export Performance; ROA - Return on Assets; ROE - Return On Equity; ROI - Return on Investment; Lev - Leverage; FA - Financial Autonomy; T/E - Turnover per Employee; AV/E - Added Value per Employee; EF - Economic Efficiency; TE - Technical Efficiency; SE - Scale Efficiency.
For the Douro region, the average of the index of EP is 18%. The profitability ratios are ROA = 0.9%, ROE = 20.5%, and ROI = 68.1%. Regarding solvency, the mean of leverage (Lev) is 2.25 and the equity/asset (AF) ratio is 28%. The productivity indices show that on average, the amount sold per employee (T/E) is 121.5 thousand Euro and the added value per employee (AV/E) is 31.5 thousand Euro. Comparing the standard deviation (SD) with the mean, we conclude that there is a high relative dispersion between observations, which is confirmed through the values of the weighted means of the indices: EP = 58%, ROA = 3.9%, ROE = 4.4%, ROI = 4.94%, Lev = 0.85, FA = 0.54, T/E = 181.8 thousand Euro, AV/E = 46.4 thousand Euro, a picture that is different of that one given by the arithmetic mean and calls for a group analysis. The average of economic efficiency (EF) is 0.454 meaning that the Douro wine industry could use 55.6% fewer inputs to obtain the same level of output, if all the firms adopted the observed best productive practice. The averages of technical efficiency (TE) and scale efficiency (SE) are 0.692 and 0.692, respectively, suggesting that the deviation from the production frontier is due to a similar extent to the inefficient use of inputs (technical efficiency) and to firms not operating at an optimum size (scale efficiency).
Regarding the Vinho Verde region, the arithmetic means of the sample are: EP = 11.8%, ROA = −0.5%, ROE = −8.2%, ROI = −0.07%, Lev = 7.52, FA = 0.25, T/E = 101.3 thousand Euro, AV/E = 24.3 thousand Euro. However, as with the Douro region, the simple means compares poorly with the weighted means, which have the following values: EP = 30.7%, ROA = 4.4%, ROE = 5.3%, ROI = 5.9%, Lev = 1.21, FA =0.45, T/E = 134.4 thousand Euro, and AV/E = 35.7 thousand Euro. The average of EF is 0.417, meaning that Vinho Verde firms could use 59.3% fewer inputs if all of them were on the production frontier. The averages of TE and SE are 0.678 and 0.675, respectively, indicating that the causes of productive inefficiency are due to a similar extent to the inefficient use of inputs and to firms not operating at an optimum size.
In order to analyze the linear relation between the indices of performance, coefficients of Person correlation are computed for both regions (Tables 4 and 5) and special attention is given to the signal and statistical significance of these coefficients. For the Douro region (Table 4), the EP shows a highly positive correlated with FA, AV/E, EF, and SE. The ROA is positively correlated with ROE, ROI, FA, AV/E, EF, and SE. The ROE is positively correlated only with ROA, AV/E, and EF. The ROI is only positively related to ROA. The Lev is only positively related to SE. The FA is positively related to EP, ROA, EF, and SE. The T/E is positively correlated with ROA, AV/E, EF, TE, and SE. The AV/E is positively correlated with EP, ROA, ROI, T/E, and with the three indices of efficiency. The EF is positively correlated with the other indices of efficiency, and with EP, ROA, ROE, ROE, FA, T/E, and AV/E. The TE is positively correlated with T/E, AV/E, EF, and negatively with SE. The SE is positively correlated with EP, ROA, Lev, FA, T/E, FA, and negatively with TE. This last result means that firms being close to the optimum size do not mean they are efficient in the use of inputs. From the 55 linear correlation coefficients computed, 43.6% are statistically significant and only the correlation between TE and SE is negative. ROI and Lev are the indexes that present more linear independence to the other indices.
EP | ROA | ROE | ROI | Lev | FA | T/E | AV/E | EF | TE | SE | |
---|---|---|---|---|---|---|---|---|---|---|---|
EP | 1 | ||||||||||
ROA | 0.036 | 1 | |||||||||
ROE | −0.052 | 0.085*** | 1 | ||||||||
ROI | −0.051 | 0.134* | 0.022 | 1 | |||||||
Lev | 0.022 | 0.029 | −0.009 | −0.007 | 1 | ||||||
FA | 0.143* | 0.549* | −0.022 | −0.044 | 0.004 | 1 | |||||
T/E | 0.057 | 0.058 | 0.039 | −0.015 | −0.003 | −0.052 | 1 | ||||
AV/E | 0.244* | 0.303* | 0.111* | 0.026 | 0.019 | 0.004 | 0.632* | 1 | |||
EF | 0.177* | 0.199* | 0.086*** | 0.045 | 0.017 | 0.235* | 0.538* | 0.619* | 1 | ||
TE | 0.038 | −0.015 | 0.057 | 0.078 | −0.065 | 0.026 | 0.258* | 0.238* | 0.499* | 1 | |
SE | 0.164* | 0.200* | 0.016 | −0.021 | 0.092** | 0.254* | 0.319* | 0.412* | 0.601* | −0.346* | 1 |
Pearson correlation coefficients of indices of performance of Douro region (434 observations, years 2014 and 2015).
*, **, *** statistically significant at 1%, 5% and 10%, respectively.
Legend: EP - Export Performance; ROA - Return on Assets; ROE - Return On Equity; ROI - Return on Investment; Lev - Leverage; FA - Financial Autonomy; T/E - Turnover per Employee; AV/E - Added Value per Employee; EF - Economic Efficiency; TE - Technical Efficiency; SE - Scale Efficiency.
EP | ROA | ROE | ROI | Lev | FA | T/E | AV/E | EF | TE | SE | |
---|---|---|---|---|---|---|---|---|---|---|---|
EP | 1 | ||||||||||
ROA | 0.165* | 1 | |||||||||
ROE | 0.018 | 0.006 | 1 | ||||||||
ROI | 0.083 | 0.602* | −0.108*** | 1 | |||||||
Lev | −0.045 | 0.002 | −0.779* | 0.019 | 1 | ||||||
FA | 0.127** | 0.437* | 0.003 | 0.378* | −0.029 | 1 | |||||
T/E | 0.063 | 0.135** | 0.032 | 0.078 | −0.029 | 0.055 | 1 | ||||
AV/E | 0.179* | 0.358* | 0.055 | 0.170* | −0.042 | 0.213 | 0.474* | 1 | |||
EF | 0.177* | 0.374* | 0.079 | 0.116** | −0.127** | 0.312* | 0.404* | 0.534* | 1 | ||
TE | 0.006 | 0.265* | 0.090 | 0.039 | 0.046* | 0.017 | 0.182* | 0.236* | 0.401* | 1 | |
SE | 0.182* | 0.158* | 0.017 | 0.108*** | −0.172* | 0.314* | 0.186* | 0.258* | 0.544* | −0.502* | 1 |
Pearson correlation coefficients of indices of performance Vinho Verde (299 observations, years 2014 and 2015).
*, **, *** statistically significant at 1%, 5% and 10%, respectively.
Legend: EP - Export Performance; ROA - Return on Assets; ROE - Return On Equity; ROI - Return on Investment; Lev - Leverage; FA - Financial Autonomy; T/E - Turnover per Employee; AV/E - Added Value per Employee; EF - Economic Efficiency; TE - Technical Eficiency; SE - Scale Efficiency.
Regarding to the Vinho Verde region (Table 5), the EP is positively correlated with ROA, FA, AV/E, EF, and SE; the ROA is positively correlated ROI, FA, T/E AV/E, EF; the ROE is negatively correlated with ROI and Lev; the ROI is positively correlated with ROA, AV/E, EF, and SE and negatively correlated with ROE; the Lev is negatively correlated with ROE, EF, and SE; the FA is positively correlated with EP, ROA, ROI, EF, and SE; the T/E is positively correlated with ROA, AV/E, EF, TE, and SE; the AV/E is positively correlated with EP, ROA, ROI, T/E, and with the indices of efficiency; the EF is positively correlated with EP, ROA, ROI, FA, T/E, AV/E, TE, and SE and negatively with leverage; the TE is positively correlated with ROA, Lev, TE/E, AV/EEF, and negatively with SE; and the SE is positively correlated with EP, ROA, ROI, FA, T/E, AV/E, and EF and negatively with Lev and TE. For this region, from the 55 linear correlation coefficients computed, 45.5% are statistically significant, with 5 of them being negative (ROE-ROI, ROE-Lev, Lev-EF, Lev-SE, and SE-TE). For instance, the negative correlation Lev and EF implies that the more indebted the firm is, the less efficient it is, both in terms of technical efficiency and scale efficiency. Moreover, the negative signal of the correlation coefficient between SE and TE shows that the firms´ optimum size does not lead to the better use of inputs, as has also been demonstrated to be the case in Douro region.
Summarizing, the statistical significance of the Pearson correlation coefficients confirms the assumption that the performance of the company should not be assessed on one index, highlighting the importance computing, and analyzing alternative performance indices, in order to reinforce the results. Moreover, both in terms of signals and statistical significance, there are differences between the correlation coefficients of the Douro and Vinho Verde regions, giving yet another clear reason to analyze them as separate samples.
Therefore, in order to ascertain whether there are differences in the performance of the wine firms, according to their size, each sample was divided into different groups according to the referred criteria of Table 2, which are the number of employees, total turnover, and total assets. Since the results are very similar, we only report the results ordered according to the number of employees.
Table 6 includes the results of the Douro region. Taking into account the number of observations for each size, we observe that almost 72% of the firms are micro, 23% are small, 3.9% are medium, and only 1.1% are big, confirming the hypothesis of a heterogeneous market structure that underlies the monopolistic competition approach. Assuming the value and significance of the Kruskal-Wallis test, since the null hypothesis of equality of population rank test is rejected, the results indicate a positive relationship between size and the indices of EP, Lev, FA, T/E, AV/E, EF, and TE. This is not the case for the profitability indicators (ROA, ROE, and ROI) and SE. However, the Hotelling statistical F is applied to examine that the means of the four sizes are the same. The results only reject this hypothesis for the EP, T/E, and EF (at a 5% level of significance) and TE (at 10% of level of significance).
EP | ROA | ROE | ROI | Lev | FA | T/E (103 €) | AV/E (103 €) | EF | TE | SE | |
---|---|---|---|---|---|---|---|---|---|---|---|
Micro (n = 312) | |||||||||||
Mean SD | 0.107 0.189 | 0.002 0.506 | 0.278 3.734 | 0.930 10.515 | 2.363 24.462 | 0.223 1.099 | 99.247 144.965 | 27.298 35.737 | 0.437 0.260 | 0.709 0.296 | 0.666 0.299 |
Small (n = 100) | |||||||||||
Mean SD | 0.306 0.281 | 0.024 0.063 | 0.014 0.600 | 0.038 0.096 | 2.223 5.454 | 0.399 0.208 | 171.342 386.509 | 37.889 37.780 | 0.465 0.213 | 0.610 0.239 | 0.759 0.144 |
Medium (n = 17) | |||||||||||
Mean SD | 0.636 0.163 | 0.051 0.024 | 0.055 0.037 | 0.059 0.031 | 0.758 0.472 | 0.608 0.160 | 214.696 189.556 | 68.480 46.094 | 0.631 0.158 | 0.808 0.150 | 0.779 0.109 |
Big (n = 5) | |||||||||||
Medium SD | 0.750 0.134 | 0.044 0.019 | 0.044 0.029 | 0.052 0.022 | 0.592 0.024 | 0.592 0.024 | 193.381 63.845 | 39.880 32.928 | 0.714 0.197 | 0.866 0.155 | 0.808 0.098 |
Statistical F (Sig.) | 48.870 0.020 | 2.680 0.283 | 0.700 0.633 | 0.670 0.647 | 1.500 0.423 | 6.040 0.145 | 239.800 0.004 | 2.750 0.278 | 49.200 0.020 | 10.520 0.088 | 3.050 0.257 |
KW (Sig.) | 92.610 0.000 | 4.720 0.192 | 3.280 0.350 | 2.280 0.517 | 9.490 0.023 | 19.210 0.000 | 33.050 0.000 | 31.480 0.000 | 19.080 0.000 | 15.310 0.002 | 1.160 0.763 |
OLS regressions | |||||||||||
Constant (Sig.) Micro (Sig.) Small (Sig) Medium (Sig) Statistical F (Sig.) | 0.750 (0.000) −0.643 (0.000) −0.443 (0.000) −0.115 (0.190) 97.030 (0.000) | 0.043 (0.620) −0.041 (0.640) −0.019 (0.830) 0.007 (0.930) 0.420 (0.740) | 0.044 (0.750) 0.232 (0.360) −0.031 (0.840) 0.010 (0.940) 0.520 (0.670) | 0.052 (0.560) 0.878 (0.090) −0.013 (0.890) 0.009 (0.930) 1.040 (0.370) | 0.689 (0.000) 1.673 (0.180) 1.533 (0.120) 0.067 (0.890) 1.380 (0.250) | 0.592 (0.000) −0.369 (0.000) −0.193 (0.000) 0.016 (0.900) 12.560 (0.000) | 193.381 (0.000) −94.113 (0.060) −22.039 (0.690) 21.315 (0.810) 3.750 (0.010) | 39.880 (0.160) −12.581 (0.660) 1.990 (0.940) 28.600 (0.380) 4.320 (0.010) | 0.712 (0.000) −0.275 (0.000) −0.247 (0.000) −0.008 (0.340) 10.590 (0.000) | 0.866 (0.000) −0.156 (0.000) −0.266 (0.000) −0.058 (0.290) 17.850 (0.000) | 0.808 (0.000) −0.142 (0.000) −0.049 (0.160) −0.029 (0.550) 7.940 (0.000) |
Indices of performance of Douro region (434 observations, years 2014 and 2015) ordered according to the number of employees.
Legend: EP - Export Performance; ROA - Return on Assets; ROE - Return On Equity; ROI - Return on Investment; Lev - Leverage; FA - Financial Autonomy; T/E - Turnover per Employee; AV/E - Added Value per Employee; EF - Economic Efficiency; TE - Technical Efficiency; SE - Scale Efficiency; SD – Standard Deviation; Sig - significance; KW - Kruskal-Wallis test; OLS - Ordinary Least Squares.
In order to check the robustness of these results, the OLS regressions, whose dependent variable is the respective index of performance, are estimated. The explanatory variables are dummy variables of the size, with “big” being omitted. The results of these models for the Douro region are also included in Table 6. The signal of the coefficients and, namely, the global significance (values of F) confirm that there are differences in the performance of firms dependent on their respective size. Specifically, it is noted that export performance, financial autonomy, productivity, and efficiency are lower in micro and small wine enterprises. However, this difference seems not to have consequences on the profitability and leverage indices, since the respective regressions are not statistically significant.
Concerning the Vinho Verde region (Table 7), according to the number of employees, there are no big wine firms, with 77.6% being micro, 21.4% small, and 1% medium, confirming the dominance of very small companies. The Kruskal-Wallis test allows us to infer that there is only a positive relationship between size and the indices of EP, T/E, AV/E, and TE and that there are no statistically significant relationships with the other indices. The Hotelling F test only permits the rejection of the null hypothesis of equality means of the three groups, for the variables T/E, TE (both at 10%), and SE (at 5%). The results of the OLS regressions show that the indices EP, T/E, and TE increase positively with the size, but negatively with SE. This last result implies that the larger firms tend to deviate from the optimal size, although they are more technical efficient in the use of inputs.
EP | ROA | ROE | ROI | Lev | FA | T/E (103 €) | AV/E (103 €) | EF | TE | SE | |
---|---|---|---|---|---|---|---|---|---|---|---|
Micro (n = 232) | |||||||||||
Mean SD | 0.102 0.202 | −0.011 0.179 | −0.096 2.033 | −0.100 1.022 | 8.875 64.888 | 0.226 0.764 | 93.541 292.740 | 22.251 40.684 | 0.414 0.239 | 0.702 0.283 | 0.650 0.310 |
Small (n = 64) | |||||||||||
Mean SD | 0.157 0.183 | 0.010 0.083 | −0.043 0.424 | 0.015 0.139 | 2.973 6.121 | 0.349 0.439 | 126.066 114.987 | 29.720 28.139 | 0.427 0.178 | 0.587 0.273 | 0.765 0.134 |
Medium (n = 3) | |||||||||||
Mean SD | 0.533 0.193 | 0.130 0.113 | 0.155 0.159 | 0.160 0.139 | 1.359 1.139 | 0.483 0.185 | 216.533 26.386 | 69.279 43.879 | 0.551 0.131 | 0.880 0.183 | 0.623 0.029 |
Statistical F (Sig.) | 44.230 (0.110) | 0.710 (0.640) | 0.620 (0.670) | 0.700 (0.650) | 0.620 (0.670) | 3.880 (0.340) | 65.340 (0.090) | 10.420 (0.210) | 28.260 (0.130) | 55.230 (0.090) | 639.950 (0.030) |
KW (Sig.) | 20.970 (0.000) | 3.890 (0.140) | 0.920 (0.630) | 2.950 (0.230) | 2.710 (0.260) | 0.990 (0.620) | 23.650 (0.000) | 15.570 (0.000) | 3.240 (0.190) | 10.770 (0.000) | 2.270 (0.320) |
OLS regressions | |||||||||||
Constant (Sig.) Micro (Sig.) Small (Sig) Statistical F (Sig.) | 0.533 (0.000) −0.432 (0.010) −0.376 (0.020) 5.080 (0.010) | 0.128 (0.470) −0.139 (0.440) −0.119 (0.500) 0.890 (0.410) | 0.155 (0.800) −0.251 (0.690) −0.193 (0.760) 0.120 (0.880) | 0.159 (0.670) −0.260 (0.490) −0.147 (0.690) 1.470 (0.230) | 1.359 (0.680) 7.516 (0.140) 1.521 (0.680) 1.240 (0.290) | 0.483 (0.060) −0.256 (0.330) −0.147 (0.579) 1.260 (0.280) | 216.533 (0.000) 122.992 (0.010) −92.933 (0.130) 3.260 (0.040) | 69.279 (0.230) 47.027 (0.419) 39.720 (0.490) 1.020 (0.360) | 0.551 (0.000) −0.137 (0.180) −0.129 (0.210) 0.920 (0.400) | 0.880 (0.000) −0.178 (0.090) −0.300 (0.010) 8.430 (0.000) | 0.623 (0.000) 0.027 (0.370) 0.144 (0.000) 25.540 (0.000) |
Indices of performance of Vinho Verde (299 observations, years 2014 and 2015) ordered according the number of employees.
Legend: EP - Export Performance; ROA - Return on Assets; ROE - Return On Equity; ROI - Return on Investment; Lev - Leverage; FA - Financial Autonomy; T/E - Turnover per Employee; AV/E - Added Value per Employee; EF - Economic Efficiency; TE - Technical Efficiency; SE - Scale Efficiency; SD – Standard Deviation; Sig - significance; KW - Kruskal-Wallis test; OLS - Ordinary Least Squares.
Generally speaking, we can summarize that Douro wine firms are more heterogeneous than their Vinho Verde counterparts, which can be explained by comparing the technologies and market structures of the two markets. In both cases, the relationship between size and performance depends on the index of performance used, and it becomes clear that organizational performance is a multidimensional construct that should take into account the different dimensions of economic performance and even the respective regions4 (spatial differentiation) in which they are located.
The wine industry neatly illustrates the market structure of monopolistic competition, exhibiting as it does varying degrees of product differentiation and free entry into the industry, with competition between groups of firm’s size. Some of them search for market niches acting as oligopolies and others for mass markets acting as in perfect competition. In this context of horizontal product differentiation, notwithstanding the globalization of the wine market, a better understanding of the performance of the wine industry requires a microeconomic analysis based on measures at both the level of the firm and that of the wine region.
Based on data for the Douro and Vinho Verde regions, two representative Portuguese wine regions that fit well into the
Nonetheless, in both regions, export performance increases with size, which can be explained by the fact that big firms have at their disposal greater marketing resources and the ability to make substantial investment in the search for new international markets. Relative to the profitability indices, in both regions, there is no statistically significant relationship to size, and there coexist different typologies of firms in the market, according to the monopolistic competition model. The indicators of productivity show that there is no standard result as these differ by region, demonstrating that the productivity of labor is higher in the bigger firms of the Douro region, but not in the Vinho Verde region where the turnover per employee is higher for microfirms, there being no statistical differences between groups.
The indices of productive efficiency of Douro firms show that the bigger firms are empowered to adopt management strategies that improve the use of economic resources. This is a consequence of a better use of inputs and the adoption of an appropriate size. In opposite, the firms of the Vinho Verde region show a different result, in which the economic efficiency is independent of the firms’ size. This could be a consequence of the better use of inputs by bigger wineries to be annulled by the deviation from the optimal size.
Summing up, the results do not show in a clear way that bigger wine firms outperform small ones, depending on the conclusions drawn from the indices that are used. The results also highlight the diversity among wine firms and the need to understand why they are different. Consequently, future research will be directed toward understanding which specific resources constitute a source of competitive advantage, expressed in variables that are not considered in this study and that are only available through the use of firm’s enquires.
Regarding policy implications, mainly in the areas of public support and regulation, this research shows that micro and small wineries are the most common types in the Portuguese wine industry and that, in the short run, this situation will not change. Moreover, assuming that globalization and international competition continue to increase in the wine industry, the search for new international markets should be aware of the importance of scale economies. This is an aim that can be achieved through organic growth or strategic alliances, either along the whole production and distribution chain or exclusively in the area of marketing.
This work is supported by the project NORTE -01-0145-FEDER-000038 (INNOVINE & WINE: Innovation Platform of Vine & Wine) and by European and Structural and Investment Funds in the FEDER component, through the Operational Competitiveness and Internationalization Program (COMPETE 2020) [Project No 006971 (UIC/SOC/04011)]; and national funds are received through the FCT: Portuguese Foundation for Science and Technology under the UID/SOC/04011/2013.
Catalyst synthesis methods have an influence on mean particle size, particle size distribution, the bulk and surface of catalysts’ composition, the oxidation state of catalysts, the extent of catalyst alloying, the distribution of catalyst crystal surfaces, and catalyst morphology [1, 2], and hence on the catalytic activity of the metal catalysts [3]. The standard by which high-performance catalysts are evaluated includes a uniform composition in the entire nanoparticles, a complete alloying degree, a narrow nanoscale size distribution, and high dispersion on carbon support [4]. Various methods for the synthesis of fuel cell catalysts have been reported in the literature, including micro-emulsion, sputtering, and co-precipitation methods. In this study, we report on the synthesis of catalysts using the impregnation, polyol, modified polyol, and microwave-assisted modified polyol methods.
The impregnation approach is frequently utilized for the manufacture of Pt-based catalysts. It is a straightforward chemical preparation process for catalyst synthesis that can create tiny particles in the 3–7 nm range with regulated loading [5, 6]. The impregnation method for the synthesis of platinum-ruthenium (PtRu) includes an impregnation step in which Pt and Ru precursor salts are mixed with the support material, which is typically high-surface-area porous or nanostructured carbon and penetrates into pores. The catalyst support aids in the penetration and wetting of the precursor and the carbon support confines the particle size growth during the reduction step. The chemical reduction can be carried out in the liquid phase with a reductive agent such as Na2S2O3, NaBH4, Na4S2O5, N2H4 or formic acid, or in the gas phase with a reductive agent such as a flowing hydrogen stream at elevated temperatures. The difficulty in adjusting nanoparticle size and distribution is a key limitation of the impregnation process [5, 6]. It has been noted that impregnated catalysts have a tendency to generate inhomogeneous agglomerations of active species at the support boundary, resulting in large-sized particles [1].
Other difficulties include the use of chloride precursors, which could result in chloride poisoning and decreased catalytic activity and stability of the chloride-salt-produced catalyst. Metal nitrate/nitrite salts such as Pt(NH3)2(NO2)2 and RuNO(NO3)x [7], carbonyl complexes such as Ru3(CO)12 [8], and metal sulfite salts such as Na6Pt (SO3)4 and Na6Ru(SO3)4 [9] as metal precursors for Pt and Ru, respectively, have been investigated for impregnation methods that could use chloride-free precursors. When compared to the traditional Cl-containing route, these chloride-free pathways provide improved dispersion and catalytic activity. In this chapter, we report on an impregnation method where NaBH4 was used as the reducing agent and ethylene glycol (EG) as the solvent.
The polyol method includes the following common steps: (1) preparation of Pt-containing colloids; (2) deposition of the colloids onto the support, and (3) chemical reduction of the mixture. The synthesis occurs in an organic or aqueous medium where the metal precursor is reduced chemically in the presence of a protective agent (i.e., NR41, PPh3, PVP, SB12, or PVA). Other colloid methods using several reducing agents, organic stabilizers, or shell-removing approaches have also been developed in recent years. The catalyst is supported with catalyst support to enhance the surface area and the dispersion of the catalyst. To achieve a limited size distribution, the colloidal metal nanoparticles are stabilized by steric hindrance or electrostatic charges. Coating the metal core with organic chain molecules can offer steric stability [10, 11]. The aggregation of charged colloids or adsorbed ions is limited by the electrostatic repulsion of similar charges. The use of protective agents, which may influence the catalytic activity of the nanoparticles, poses a problem for the polyol process, but it may be removed by washing in a suitable solvent or breakdown at temperatures in an inert atmosphere. There are also other challenges facing the polyol method, such as that it is time-consuming, complex, and expensive, which causes difficulty in terms of scaling up. The colloidal method prepares catalysts with nanoparticle size and narrow size distribution.
The polyol method that was employed in this study has been extensively explored as a preparation method for Pt [5, 12].
Fievet et al. [13] pioneered the use of EG as both a solvent and a reducing agent. They found that EG may support colloidal metal particles in solution, resulting in a well-distributed solution. EG has a relatively high viscosity, and therefore it prevents Pt from being delivered to reaction sites too quickly, resulting in reduced Pt particle sizes [14]. This method is called the modified polyol method [15]. The modified polyol method is able to effectively synthesize very small and well-dispersed metal nanoparticles [2]. However, the synthesis parameters such as the water: EG ratio, the concentration of EG, and the pH of the solution have a great effect on the characteristics of the results [2]. Bimetallic catalysts, metal oxides, and metal sulfides with narrow particle size distributions, controlled compositions, and alloy structures have also been effectively prepared using the modified polyol technique [16]. The modified polyol approach, which uses EG as a reducing agent and solvent, was also used to make catalysts in this study. EG was utilized as both a reducing agent and a solvent for the Pt and Ru precursors in this method. The solution of EG, Pt, and Ru precursor salts was heated to 120–170°C during the reduction phase. EG is decomposed in this step, resulting in the reducing species (CH3CHO-acetaldehyde, Eq. (1)) [17].
As represented in Eq. (2), acetaldehyde converts Pt ions into metallic Pt particles. The main feature of this polyol synthesis is that the acetate can act as a stabilizer for Pt and Ru colloids by forming chelate-type complexes via its carbonyl group. It is therefore unnecessary to use stabilization agents to prevent PtRu particles from agglomerating. As a result of using modified polyol synthesis, carbon-supported catalysts with reduced noble metal sizes and narrow size distribution are achieved.
The microwave synthetic approach was one of the methods employed in this study. A modified polyol method has been reported for this technique, with the deposition and reduction steps taking place in a microwave reactor. Microwave synthetic methodology has been utilized to manufacture catalysts because of its fast, uniform, homogeneous, and instant heating environment, which resulted in rapid reduction and facilitated metal particle nucleation [8, 18]. Microwave heating is a promising technology, with its applications rapidly growing due to its advantages over conventional heating, such as rapid volumetric heating, which increased reaction rates and shortened reaction time; however, to induce crystallization, a post-synthesis heat treatment was required [3]. Under such conditions, a microwave-assisted synthesis method is an appropriate option, with the added benefits of narrow size distribution and high purity [4]. At high pH conditions for depositions, promising results were reported with an average Pt size of 2.7 nm. However, because the reaction takes place in a closed system, the pH cannot be controlled throughout the duration of the reaction, hence, the entire scope of the reaction under these conditions is unknown [19].
X-ray diffraction (XRD) and the high-resolution transmission electron microscope (HRTEM) were used to learn more about the catalyst structure. The XRD patterns were performed with the Bruker AXS D8 advance equipment with Cu-K radiation and a wavelength of 1.5406 nm. With a scanning step of 0.035°, the Bragg angle range was 2θ = 10–90°. The instrumental contribution to peak profile characteristics was determined using a standard α-Al2O3 sample. A JEOL 2010 TEM system operating at 200 kV was used to obtain the HRTEM micrographs. The HRTEM samples were made by dispersing the carbon-supported electrocatalysts in ethanol and then casting a drop of the suspension onto a Cu-grid covered in carbon film for analysis. For each electrocatalyst, the particle size determined by HRTEM was obtained using Image J software over multiple areas.
XRD measurements were performed to obtain the crystallographic information of the prepared catalysts. The XRD results presented in Figure 1 indicate that all prepared metal catalysts presented a typical face-centered cubic crystallographic structure of PtRu crystals. The Bragg angles indicate that varying bimetallic interactions or alloying occurred in the PtRu crystals due to different catalyst preparation methods. The diffraction peak for carbon is at about 2θ = 25°. Other peaks are at 2θ values of 39.9°, 46.21°, 67.8°, and 81.2°, which are indexed to (111), (200), (220), and (311) planes of PtRu/MWCNT crystal structure, respectively. The strongest and sharpest diffraction peak for all four samples is at around 2θ = 39.9° indexed as (111) reflection of PtRu/MWCNT crystal planes prepared through the modified polyol and polyol methods, while the other characteristic PtRu/MWCNT diffraction peaks at 2θ of about 46.21°, 67.8°, and 81.2° corresponded to (200), (220), and (311), respectively. Similar results were also reported by Kim et al. [20] and Wu et al. [21].
XRD spectra of PtRu electrocatalysts supported on multi-walled carbon nanotubes (MWCNTs) prepared through the impregnation, polyol, modified polyol, and microwave-assisted modified polyol methods.
The crystalline size of the metal particles is calculated using Debye-Scherrer’s equation, Kα/βCosθ, where K, Scherrer constant = 0.9, α, X-ray wavelength = 0.154 nm, and β(2θ), the width of the diffraction peak (rad). From Table 1 the average particle size can be seen, with PtRu/MWCNT nanoparticles prepared through microwave-assisted modified polyol having the smallest crystalline size of 1.95 nm, followed by PtRu/MWCNT nanoparticles prepared through the modified polyol method with a crystalline size of 4.33 nm.
PtRu electrocatalysts | Crystalline size (nm) | Particle size (nm) |
---|---|---|
PtRu/MWCNT modified polyol | 4.33 | 4.14 |
PtRu/MWCNT polyol | 6.75 | 6.51 |
PtRu/MWCNT impregnation | 7.11 | 6.90 |
PtRu/MWCNT microwave | 1.95 | 1.87 |
Properties of the PtRu electrocatalysts.
Catalyst nanoparticles are the dark dots as shown in the HRTEM micrographs in Figure 2. PtRu/MWCNT nanoparticles are well distributed with little agglomeration. PtRu/MWCNT electrocatalysts prepared through the microwave-assisted modified polyol method has the least agglomeration, followed by PtRu/MWCNT modified polyol when compared with other electrocatalysts evident from their higher electroactive catalyst surface areas of 4.15 × 102 m2/g and 3.2 × 102 m2/g, respectively an advantage for enhanced electrocatalytic activities. Both of these catalysts gave the smallest particle sizes of 1.87 and 4.14 nm, respectively. The other electrocatalysts PtRu on MWCNT support particle sizes were between 5.77 and 6.90 nm. The particle sizes of the electrocatalysts obtained were comparable with the average particle sizes following the order PtRu/MWCNT impregnation > PtRu/MWCNT polyol > PtRu/MWCNT modified polyol > PtRu/MWCNT microwave-assisted modified polyol.
HRTEM images with their respective histograms for PtRu/MWCNT prepared through the impregnation, polyol, modified polyol, and microwave-assisted modified polyol methods.
In Figure 2 the histograms reveal the mean particle sizes and their nanoparticle size distributions for all PtRu/MWCNT electrocatalysts prepared through all four synthesis methods; however, the two electrocatalysts prepared through the impregnation method and polyol method exhibited better distribution of nanoparticles as compared to other electrocatalysts. The particle size was determined using Image J software estimated from 50 particles selected randomly from HRTEM micrographs of the PtRu/MWCNT nanoparticles. The mean particle sizes of PtRu/MWCNT impregnation, PtRu/MWCNT polyol, PtRu/MWCNT modified polyol, and PtRu/MWCNT microwave-assisted modified polyol were 6.90, 6.51, 4.14, and 1.87 nm, respectively.
Electrochemical measurements were carried out at ambient temperatures using a three-electrode configuration, which includes a working electrode, a counter electrode, and a reference electrode. An Ag/AgCl electrode as a reference electrode and a Pt foil of a large area as a counter electrode were used. The working electrode was a glassy carbon disc (5 mm in diameter with a geometric area of 0.196 cm2) covered with a thin layer of catalyst of fine film. Before the experiment, the electrode substrate was pre-treated by polishing it with a 0.05 μm Al2O3 particle suspension on a moistened microcloth. All the electrochemical experiments were carried out, namely electrochemical impedance spectroscopy (EIS), chronoamperometry (CA), and cyclic voltammetry (CV), and performed on an autolab electrochemical workstation (PGSTAT128N, Eco Chemie, the Netherlands). CA tests were carried out for the electrocatalytic stability of the PtRu/MWCNT catalysts for the methanol electro-oxidation. The CA was carried out for 30 minutes. CV evaluations were carried out at 30 mV/s covering a potential window from −0.2 to 1.2 V vs. Ag/AgCl. Perchloric acid was used as the electrolyte. Inert nitrogen gas was used to deaerate the solutions. To obtain a homogeneous catalyst layer, a stock solution was first prepared by mixing 20 ml of isopropanol, 79.6 ml of ultra-pure water, and 0.4 ml of 5wt% Nafion solution in a 100-ml volumetric flask. Thereafter, 10 mg of the catalyst powder was measured into a 10-ml vial and 5 ml of stock solution was added, mixed thoroughly, and sonicated for 60 minutes in an ultrasonicator. A measured volume of this mixture was dropped on top of the glassy carbon disc and then dried to form the desired catalyst layer.
Electrochemical activities of the prepared catalysts in a 0.5 M HClO4 solution were firstly examined by CV. From the CV of the prepared electrocatalysts, the adsorption peaks for the different catalysts were observed. The peak area of the adsorption peak of the electrocatalysts in the CV was used to determine the electroactive surface area of the catalysts using the equation 2 [22]:
where
Cyclic voltammograms of PtRu/MWCNT electrocatalysts in N2-saturated 0.5 M perchloric acid HClO4 at a scan rate of 30 mV.s−1.
The obtained ECSA values were 4.15 × 103 cm2/g for PtRu/MWCNT microwave-assisted modified polyol, 3.2 × 103 cm2/g for PtRu/MWCNT modified polyol, 0.35 × 103 cm2/g for PtRu/MWCNT polyol and 0.28 × 102 m2/g for PtRu/MWCNT impregnation. The higher ECSA value of PtRu/MWCNT prepared through the microwave-assisted modified polyol method can be attributed to its lower particle size value, hence a higher surface area compared to the other electrocatalysts.
The electrocatalytic activity of the PtRu/MWCNT series catalysts towards the methanol oxidation was investigated using the CV technique in 0.5 M HClO4 with 2 M methanol at a scan rate of 30 mVs−1, as shown in Figure 4.
Cyclic voltammograms of PtRu/MWCNT electrocatalysts in N2-saturated 0.5 M perchloric acid HClO4 and 2 M methanol at a scan rate of 30 mV.s−1.
The electrocatalytic activity towards methanol oxidation is summarized in Table 2. By comparing the characteristics of the CVs, the change in catalyst preparation methods leading to varying compositions of Pt and Ru in the metal alloys was found to substantially enhance the catalytic activity for methanol electro-oxidation. First, the onset potentials (a measure of catalytic activity) of methanol oxidation for the PtRu/MWCNT prepared through the microwave-assisted modified polyol method and PtRu/MWCNT showed relatively lower values than that of PtRu/MWCNT electrocatalysts prepared through the impregnation, polyol and modified polyol methods. The positions of the onset potentials follow the order of PtRu/MWCNT microwave-assisted modified polyol < PtRu/MWCNT modified polyol < PtRu/MWCNT polyol < PtRu/MWCNT impregnation. Second, the forward peak current densities (measure of the maximum catalyst performance) of the PtRu/MWCNT catalysts took the order PtRu/MWCNT microwave-assisted modified polyol > PtRu/MWCNT impregnation > PtRu/MWCNT modified polyol > PtRu/MWCNT polyol. Therefore, PtRu/MWCNT prepared through the microwave-assisted modified polyol method exhibited the most prominent electrochemical performance in terms of the highest forward peak current density and the lowest onset potential, followed by PtRu/MWCNT prepared through the modified polyol method.
PtRu electrocatalysts | E(onset) [a] [V vs. Ag/AgCl] | Ef [b] [V vs. Ag/AgCl] | Ij [c] (mAcm−2) | Electroactive catalyst surface area (m2/g) |
---|---|---|---|---|
PtRu/MWCNT modified polyol | −0.194 | 0.415 | 0.16 | 3.2 × 102 |
PtRu/MWCNT polyol | −0.187 | 0.522 | 0.041 | 0.35 × 102 |
PtRu/MWCNT impregnation | −0.151 | 0.411 | 0.188 | 0.28 × 102 |
PtRu/MWCNT microwave | −0.198 | 0.633 | 0.190 | 4.15 × 102 |
Comparison of the electrocatalytic activity of the catalysts for methanol oxidation.
[a] Onset potential, [b] forward anodic peak potential at 30 mVs−1, [c] forward anodic peak current density at 30 mVs−1.
It was found that PtRu/MWCNT produced through the microwave-assisted modified polyol method of Pt: Ru ratio close to 1:1 outperformed all other PtRu/MWCNT electrocatalysts produced through other synthesis methods in methanol electro-oxidation reaction evident from the current density of 0.190 mA/cm2.
Electro-oxidation of methanol to form CO2 can be via dual path mechanisms consisting of non-CO and adsorbed CO reactive intermediates [24]:
The non-CO reaction pathway is preferred for methanol oxidation for which it does not involve CO, a poison for Pt metal. The adsorbed CO reaction pathway often presents, however, in which the intermediates via (CO)ads are mostly in the form of linearly bonded CO, that is, Pt = C = O [25]. Interaction of this complex on the catalyst surface leads to CO poisoning. The presence of Ru in the bimetallic catalyst assists in the oxidation of CO through chemisorbed -OH on the Ru sites [26]:
In this way, the poisoned Pt is regenerated and can again participate in the oxidation of methanol. Due to the single species of CO and OH on Pt and Ru, respectively, the best results can be obtained when the Pt to Ru atomic ratio is 1:1 [27] (Figure 5).
Electrochemical impedance curves of methanol oxidation on PtRu/MWCNT electrocatalysts prepared through different synthesis methods in N2-saturated 0.5 M HClO4 and 0.2 M methanol.
The EIS technique was used to investigate the catalytic reaction kinetics for the methanol oxidation on the anodic PtRu/MWCNT electrocatalysts surfaces. The charge transfer resistance (Rct) values using equivalent circuit fitting were 5.985, 8.926, 4.061, and 6.184 kΩ for PtRu/MWCNT modified polyol, PtRu/MWCNT polyol, PtRu/MWCNT impregnation, and PtRu/MWCNT microwave-assisted modified polyol, respectively, indicating that PtRu/MWCNT prepared through the impregnation method exhibited the best kinetics towards the methanol electro-oxidation with the least resistance to flow of electric current. PtRu/MWCNT prepared through the modified polyol method also showed promising kinetics with an Rct value of 5.985 kΩ.
The stability of the electrocatalysts is extremely important for their real applications in direct methanol fuel cells. Figure 6 shows the CA of PtRu electrocatalysts on MWCNT support in N2-saturated 0.5 M HClO4 with 2.0 M methanol. This was to test the stability of the different catalysts after 1800 seconds. As observed at the start of the CA curve, the current density decreases sharply with time (I proportional to t−1/2). The decreasing rate with time may characterize the inhibition of the electrodes by the methanol oxidation reaction products. When comparing the prepared catalysts, PtRu/MWCNT catalyst prepared through the polyol method performed better, followed by PtRu/MWCNT modified polyol. PtRu/MWCNT prepared by microwaving also showed better stability with higher current density than PtRu/MWCNT prepared through the impregnation method.
Chronoamperometry curves of methanol oxidation on PtRu/MWCNT electrocatalysts in 0.5 M HClO4 and 2.0 M CH3OH.
In this study, PtRu, supported by MWCNT, was successfully fabricated using the impregnation, polyol, modified polyol, and microwave-assisted modified polyol catalyst preparation methods. The synthesized electrocatalysts had crystalline sizes of 1.95–7.11 nm and average particle sizes of 1.87–6.90 nm, determined using XRD and HRTEM, respectively. The PtRu alloy phase is pronounced for the prepared electrocatalysts according to XRD analysis. It is found that the PtRu/MWCNT electrocatalyst produced through the microwave-assisted modified polyol method and PtRu/MWCNT modified polyol showed enhanced electrocatalytic activity towards methanol oxidation compared to other PtRu electrocatalysts on MWCNT support. Furthermore, the microwave-assisted prepared PtRu/MWCNT electrocatalyst had the largest current density for methanol oxidation compared to other electrocatalysts. This can be attributed to it having the smallest particle size and being the most active toward anode oxidation reaction. From the EIS, it was concluded that the PtRu/MWCNT electrocatalysts produced through the impregnation method exhibited a faster electrochemical reaction kinetics than both PtRu/MWCNT electrocatalysts produced through the polyol and modified polyol methods. Microwave-assisted modified polyol method PtRu electrocatalysts had the highest ECSA values compared to all other PtRu catalysts on MWCNT support, followed by PtRu/MWCNT produced by the modified polyol method. This was as a result of their smaller crystalline particle sizes of 1.95 and 4.33 nm, respectively. Polyol method synthesized PtRu/MWCNT was found to be the most stable electrocatalyst, followed by PtRu/MWCNT produced through the modified polyol method, as revealed by the chronoamperometry tests.
Based on all the results acquired in this investigation, it was concluded that the microwave-assisted modified polyol process of catalyst preparation method produced the best PtRu electrocatalyst on MWCNT to support the improved catalytic activity.
Content alerts
",metaTitle:"Content alerts",metaDescription:"Content alerts",metaKeywords:null,canonicalURL:"/page/content-alerts",contentRaw:'[{"type":"htmlEditorComponent","content":"Content alerts
\\n"}]'},components:[{type:"htmlEditorComponent",content:"Content alerts
\n"}]},successStories:{items:[]},authorsAndEditors:{filterParams:{},profiles:[{id:"396",title:"Dr.",name:"Vedran",middleName:null,surname:"Kordic",slug:"vedran-kordic",fullName:"Vedran Kordic",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/396/images/7281_n.png",biography:"After obtaining his Master's degree in Mechanical Engineering he continued his education at the Vienna University of Technology where he obtained his PhD degree in 2004. He worked as a researcher at the Automation and Control Institute, Faculty of Electrical Engineering, Vienna University of Technology until 2008. His studies in robotics lead him not only to a PhD degree but also inspired him to co-found and build the International Journal of Advanced Robotic Systems - world's first Open Access journal in the field of robotics.",institutionString:null,institution:{name:"TU Wien",country:{name:"Austria"}}},{id:"441",title:"Ph.D.",name:"Jaekyu",middleName:null,surname:"Park",slug:"jaekyu-park",fullName:"Jaekyu Park",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/441/images/1881_n.jpg",biography:null,institutionString:null,institution:{name:"LG Corporation (South Korea)",country:{name:"Korea, South"}}},{id:"465",title:"Dr",name:"Christian",middleName:null,surname:"Martens",slug:"christian-martens",fullName:"Christian Martens",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:null},{id:"479",title:"Dr.",name:"Valentina",middleName:null,surname:"Colla",slug:"valentina-colla",fullName:"Valentina Colla",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/479/images/358_n.jpg",biography:null,institutionString:null,institution:{name:"Sant'Anna School of Advanced Studies",country:{name:"Italy"}}},{id:"494",title:"PhD",name:"Loris",middleName:null,surname:"Nanni",slug:"loris-nanni",fullName:"Loris Nanni",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/494/images/system/494.jpg",biography:"Loris Nanni received his Master Degree cum laude on June-2002 from the University of Bologna, and the April 26th 2006 he received his Ph.D. in Computer Engineering at DEIS, University of Bologna. On September, 29th 2006 he has won a post PhD fellowship from the university of Bologna (from October 2006 to October 2008), at the competitive examination he was ranked first in the industrial engineering area. He extensively served as referee for several international journals. He is author/coauthor of more than 100 research papers. He has been involved in some projects supported by MURST and European Community. His research interests include pattern recognition, bioinformatics, and biometric systems (fingerprint classification and recognition, signature verification, face recognition).",institutionString:null,institution:null},{id:"496",title:"Dr.",name:"Carlos",middleName:null,surname:"Leon",slug:"carlos-leon",fullName:"Carlos Leon",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Seville",country:{name:"Spain"}}},{id:"512",title:"Dr.",name:"Dayang",middleName:null,surname:"Jawawi",slug:"dayang-jawawi",fullName:"Dayang Jawawi",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Technology Malaysia",country:{name:"Malaysia"}}},{id:"528",title:"Dr.",name:"Kresimir",middleName:null,surname:"Delac",slug:"kresimir-delac",fullName:"Kresimir Delac",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/528/images/system/528.jpg",biography:"K. Delac received his B.Sc.E.E. degree in 2003 and is currentlypursuing a Ph.D. degree at the University of Zagreb, Faculty of Electrical Engineering andComputing. His current research interests are digital image analysis, pattern recognition andbiometrics.",institutionString:null,institution:{name:"University of Zagreb",country:{name:"Croatia"}}},{id:"557",title:"Dr.",name:"Andon",middleName:"Venelinov",surname:"Topalov",slug:"andon-topalov",fullName:"Andon Topalov",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/557/images/1927_n.jpg",biography:"Dr. Andon V. Topalov received the MSc degree in Control Engineering from the Faculty of Information Systems, Technologies, and Automation at Moscow State University of Civil Engineering (MGGU) in 1979. He then received his PhD degree in Control Engineering from the Department of Automation and Remote Control at Moscow State Mining University (MGSU), Moscow, in 1984. From 1985 to 1986, he was a Research Fellow in the Research Institute for Electronic Equipment, ZZU AD, Plovdiv, Bulgaria. In 1986, he joined the Department of Control Systems, Technical University of Sofia at the Plovdiv campus, where he is presently a Full Professor. He has held long-term visiting Professor/Scholar positions at various institutions in South Korea, Turkey, Mexico, Greece, Belgium, UK, and Germany. And he has coauthored one book and authored or coauthored more than 80 research papers in conference proceedings and journals. His current research interests are in the fields of intelligent control and robotics.",institutionString:null,institution:{name:"Technical University of Sofia",country:{name:"Bulgaria"}}},{id:"585",title:"Prof.",name:"Munir",middleName:null,surname:"Merdan",slug:"munir-merdan",fullName:"Munir Merdan",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/585/images/system/585.jpg",biography:"Munir Merdan received the M.Sc. degree in mechanical engineering from the Technical University of Sarajevo, Bosnia and Herzegovina, in 2001, and the Ph.D. degree in electrical engineering from the Vienna University of Technology, Vienna, Austria, in 2009.Since 2005, he has been at the Automation and Control Institute, Vienna University of Technology, where he is currently a Senior Researcher. His research interests include the application of agent technology for achieving agile control in the manufacturing environment.",institutionString:null,institution:null},{id:"605",title:"Prof",name:"Dil",middleName:null,surname:"Hussain",slug:"dil-hussain",fullName:"Dil Hussain",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/605/images/system/605.jpg",biography:"Dr. Dil Muhammad Akbar Hussain is a professor of Electronics Engineering & Computer Science at the Department of Energy Technology, Aalborg University Denmark. Professor Akbar has a Master degree in Digital Electronics from Govt. College University, Lahore Pakistan and a P-hD degree in Control Engineering from the School of Engineering and Applied Sciences, University of Sussex United Kingdom. Aalborg University has Two Satellite Campuses, one in Copenhagen (Aalborg University Copenhagen) and the other in Esbjerg (Aalborg University Esbjerg).\n· He is a member of prestigious IEEE (Institute of Electrical and Electronics Engineers), and IAENG (International Association of Engineers) organizations. \n· He is the chief Editor of the Journal of Software Engineering.\n· He is the member of the Editorial Board of International Journal of Computer Science and Software Technology (IJCSST) and International Journal of Computer Engineering and Information Technology. \n· He is also the Editor of Communication in Computer and Information Science CCIS-20 by Springer.\n· Reviewer For Many Conferences\nHe is the lead person in making collaboration agreements between Aalborg University and many universities of Pakistan, for which the MOU’s (Memorandum of Understanding) have been signed.\nProfessor Akbar is working in Academia since 1990, he started his career as a Lab demonstrator/TA at the University of Sussex. After finishing his P. hD degree in 1992, he served in the Industry as a Scientific Officer and continued his academic career as a visiting scholar for a number of educational institutions. In 1996 he joined National University of Science & Technology Pakistan (NUST) as an Associate Professor; NUST is one of the top few universities in Pakistan. In 1999 he joined an International Company Lineo Inc, Canada as Manager Compiler Group, where he headed the group for developing Compiler Tool Chain and Porting of Operating Systems for the BLACKfin processor. The processor development was a joint venture by Intel and Analog Devices. In 2002 Lineo Inc., was taken over by another company, so he joined Aalborg University Denmark as an Assistant Professor.\nProfessor Akbar has truly a multi-disciplined career and he continued his legacy and making progress in many areas of his interests both in teaching and research. He has contributed in stochastic estimation of control area especially, in the Multiple Target Tracking and Interactive Multiple Model (IMM) research, Ball & Beam Control Problem, Robotics, Levitation Control. He has contributed in developing Algorithms for Fingerprint Matching, Computer Vision and Face Recognition. He has been supervising Pattern Recognition, Formal Languages and Distributed Processing projects for several years. He has reviewed many books on Management, Computer Science. Currently, he is an active and permanent reviewer for many international conferences and symposia and the program committee member for many international conferences.\nIn teaching he has taught the core computer science subjects like, Digital Design, Real Time Embedded System Programming, Operating Systems, Software Engineering, Data Structures, Databases, Compiler Construction. In the Engineering side, Digital Signal Processing, Computer Architecture, Electronics Devices, Digital Filtering and Engineering Management.\nApart from his Academic Interest and activities he loves sport especially, Cricket, Football, Snooker and Squash. He plays cricket for Esbjerg city in the second division team as an opener wicket keeper batsman. He is a very good player of squash but has not played squash since his arrival in Denmark.",institutionString:null,institution:null},{id:"611",title:"Prof.",name:"T",middleName:null,surname:"Nagarajan",slug:"t-nagarajan",fullName:"T Nagarajan",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Universiti Teknologi Petronas",country:{name:"Malaysia"}}}],filtersByRegion:[{group:"region",caption:"North America",value:1,count:6675},{group:"region",caption:"Middle and South America",value:2,count:5955},{group:"region",caption:"Africa",value:3,count:2458},{group:"region",caption:"Asia",value:4,count:12717},{group:"region",caption:"Australia and Oceania",value:5,count:1017},{group:"region",caption:"Europe",value:6,count:17720}],offset:12,limit:12,total:134177},chapterEmbeded:{data:{}},editorApplication:{success:null,errors:{}},ofsBooks:{filterParams:{},books:[{type:"book",id:"9985",title:"Geostatistics",subtitle:null,isOpenForSubmission:!0,hash:"423cb3896195a618c4acb493ce4fd23d",slug:null,bookSignature:"Prof. Jeffrey M. Yarus, Dr. Marko Maucec, Dr. Timothy C. Coburn and Associate Prof. Michael Pyrcz",coverURL:"https://cdn.intechopen.com/books/images_new/9985.jpg",editedByType:null,editors:[{id:"78011",title:"Prof.",name:"Jeffrey M.",surname:"Yarus",slug:"jeffrey-m.-yarus",fullName:"Jeffrey M. Yarus"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10845",title:"Marine Ecosystems - Biodiversity, Ecosystem Services and Human Impacts",subtitle:null,isOpenForSubmission:!0,hash:"727e7eb3d4ba529ec5eb4f150e078523",slug:null,bookSignature:"Dr. Ana M.M. Marta Gonçalves",coverURL:"https://cdn.intechopen.com/books/images_new/10845.jpg",editedByType:null,editors:[{id:"320124",title:"Dr.",name:"Ana M.M.",surname:"Gonçalves",slug:"ana-m.m.-goncalves",fullName:"Ana M.M. Gonçalves"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11027",title:"Basics of Hypoglycemia",subtitle:null,isOpenForSubmission:!0,hash:"98ebc1e36d02be82c204b8fd5d24f97a",slug:null,bookSignature:"Dr. Alok Raghav",coverURL:"https://cdn.intechopen.com/books/images_new/11027.jpg",editedByType:null,editors:[{id:"334465",title:"Dr.",name:"Alok",surname:"Raghav",slug:"alok-raghav",fullName:"Alok Raghav"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11124",title:"Next-Generation Textiles",subtitle:null,isOpenForSubmission:!0,hash:"093f9e26bb829b8d414d13626aea1086",slug:null,bookSignature:"Dr. Hassan Ibrahim",coverURL:"https://cdn.intechopen.com/books/images_new/11124.jpg",editedByType:null,editors:[{id:"90645",title:"Dr.",name:"Hassan",surname:"Ibrahim",slug:"hassan-ibrahim",fullName:"Hassan Ibrahim"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11168",title:"Sulfur Industry",subtitle:null,isOpenForSubmission:!0,hash:"39d4f4522a9f465bfe15ec2d85ef8861",slug:null,bookSignature:"Dr. Enos Wamalwa Wambu and Dr. Esther Nthiga",coverURL:"https://cdn.intechopen.com/books/images_new/11168.jpg",editedByType:null,editors:[{id:"187655",title:"Dr.",name:"Enos",surname:"Wambu",slug:"enos-wambu",fullName:"Enos Wambu"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11254",title:"Optical Coherence Tomography",subtitle:null,isOpenForSubmission:!0,hash:"a958c09ceaab1fc44c1dd0a817f48c92",slug:null,bookSignature:"",coverURL:"https://cdn.intechopen.com/books/images_new/11254.jpg",editedByType:null,editors:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11273",title:"Ankylosing Spondylitis",subtitle:null,isOpenForSubmission:!0,hash:"e07e8cf78550507643fbcf71a6a9d48b",slug:null,bookSignature:"Dr. Jacome Bruges Armas",coverURL:"https://cdn.intechopen.com/books/images_new/11273.jpg",editedByType:null,editors:[{id:"70522",title:"Dr.",name:"Jacome",surname:"Bruges Armas",slug:"jacome-bruges-armas",fullName:"Jacome Bruges Armas"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11369",title:"RNA Viruses",subtitle:null,isOpenForSubmission:!0,hash:"52f8a3a1486912beae40b34ac557fed3",slug:null,bookSignature:"Ph.D. Yogendra Shah",coverURL:"https://cdn.intechopen.com/books/images_new/11369.jpg",editedByType:null,editors:[{id:"278914",title:"Ph.D.",name:"Yogendra",surname:"Shah",slug:"yogendra-shah",fullName:"Yogendra Shah"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11433",title:"Human Migration in the Last Three Centuries",subtitle:null,isOpenForSubmission:!0,hash:"9836df9e82aa9f82e3852a60204909a8",slug:null,bookSignature:"Dr. Ingrid Muenstermann",coverURL:"https://cdn.intechopen.com/books/images_new/11433.jpg",editedByType:null,editors:[{id:"77112",title:"Dr.",name:"Ingrid",surname:"Muenstermann",slug:"ingrid-muenstermann",fullName:"Ingrid Muenstermann"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11434",title:"Indigenous Populations - Perspectives From Scholars and Practitioners in Contemporary Times",subtitle:null,isOpenForSubmission:!0,hash:"c0d1c1c93a36fd9d726445966316a373",slug:null,bookSignature:"Dr. Sylvanus Gbendazhi Barnabas",coverURL:"https://cdn.intechopen.com/books/images_new/11434.jpg",editedByType:null,editors:[{id:"293764",title:"Dr.",name:"Sylvanus",surname:"Barnabas",slug:"sylvanus-barnabas",fullName:"Sylvanus Barnabas"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11436",title:"Beauty - Evolutionary, Social and Cultural Perspectives on Attractiveness",subtitle:null,isOpenForSubmission:!0,hash:"8f2773e5d4ffe767f38dd15712258e8c",slug:null,bookSignature:"Dr. Farid Pazhoohi",coverURL:"https://cdn.intechopen.com/books/images_new/11436.jpg",editedByType:null,editors:[{id:"470837",title:"Dr.",name:"Farid",surname:"Pazhoohi",slug:"farid-pazhoohi",fullName:"Farid Pazhoohi"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11437",title:"Social Media - Risks and Opportunities",subtitle:null,isOpenForSubmission:!0,hash:"000e31f2e2f7295805e9a3864158ad63",slug:null,bookSignature:"Dr. Shafizan Mohamed and Dr. Shazleen Mohamed",coverURL:"https://cdn.intechopen.com/books/images_new/11437.jpg",editedByType:null,editors:[{id:"302450",title:"Associate Prof.",name:"Shafizan",surname:"Mohamed",slug:"shafizan-mohamed",fullName:"Shafizan Mohamed"}],productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}],filtersByTopic:[{group:"topic",caption:"Agricultural and Biological Sciences",value:5,count:38},{group:"topic",caption:"Biochemistry, Genetics and Molecular Biology",value:6,count:13},{group:"topic",caption:"Business, Management and Economics",value:7,count:7},{group:"topic",caption:"Chemistry",value:8,count:23},{group:"topic",caption:"Computer and Information Science",value:9,count:24},{group:"topic",caption:"Earth and Planetary Sciences",value:10,count:15},{group:"topic",caption:"Engineering",value:11,count:65},{group:"topic",caption:"Environmental Sciences",value:12,count:10},{group:"topic",caption:"Immunology and Microbiology",value:13,count:16},{group:"topic",caption:"Materials Science",value:14,count:25},{group:"topic",caption:"Mathematics",value:15,count:11},{group:"topic",caption:"Medicine",value:16,count:116},{group:"topic",caption:"Nanotechnology and Nanomaterials",value:17,count:6},{group:"topic",caption:"Neuroscience",value:18,count:4},{group:"topic",caption:"Pharmacology, Toxicology and Pharmaceutical Science",value:19,count:9},{group:"topic",caption:"Physics",value:20,count:9},{group:"topic",caption:"Psychology",value:21,count:10},{group:"topic",caption:"Robotics",value:22,count:2},{group:"topic",caption:"Social Sciences",value:23,count:9},{group:"topic",caption:"Veterinary Medicine and Science",value:25,count:4}],offset:12,limit:12,total:666},popularBooks:{featuredBooks:[{type:"book",id:"10858",title:"MOOC (Massive Open Online Courses)",subtitle:null,isOpenForSubmission:!1,hash:"d32f86793bc72dde32532f509b1ec5b0",slug:"mooc-massive-open-online-courses-",bookSignature:"Dragan Cvetković",coverURL:"https://cdn.intechopen.com/books/images_new/10858.jpg",editors:[{id:"101330",title:"Dr.",name:"Dragan",middleName:"Mladen",surname:"Cvetković",slug:"dragan-cvetkovic",fullName:"Dragan Cvetković"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10195",title:"Serotonin and the CNS",subtitle:"New Developments in Pharmacology and Therapeutics",isOpenForSubmission:!1,hash:"7ed9d96da98233a885bd2869a8056c36",slug:"serotonin-and-the-cns-new-developments-in-pharmacology-and-therapeutics",bookSignature:"Berend Olivier",coverURL:"https://cdn.intechopen.com/books/images_new/10195.jpg",editors:[{id:"71579",title:"Prof.",name:"Berend",middleName:null,surname:"Olivier",slug:"berend-olivier",fullName:"Berend Olivier"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10755",title:"Corporate Governance",subtitle:"Recent Advances and Perspectives",isOpenForSubmission:!1,hash:"ffe06d1d5c4bf0fc2e63511825fe1257",slug:"corporate-governance-recent-advances-and-perspectives",bookSignature:"Okechukwu Lawrence Emeagwali and Feyza Bhatti",coverURL:"https://cdn.intechopen.com/books/images_new/10755.jpg",editors:[{id:"196317",title:"Associate Prof.",name:"Okechukwu Lawrence",middleName:null,surname:"Emeagwali",slug:"okechukwu-lawrence-emeagwali",fullName:"Okechukwu Lawrence Emeagwali"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11120",title:"Environmental Impact and Remediation of Heavy Metals",subtitle:null,isOpenForSubmission:!1,hash:"9e77514288e7394f1e6cd13481af3509",slug:"environmental-impact-and-remediation-of-heavy-metals",bookSignature:"Hosam M. Saleh and Amal I. Hassan",coverURL:"https://cdn.intechopen.com/books/images_new/11120.jpg",editors:[{id:"144691",title:"Prof.",name:"Hosam M.",middleName:null,surname:"Saleh",slug:"hosam-m.-saleh",fullName:"Hosam M. Saleh"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10901",title:"Grapes and Wine",subtitle:null,isOpenForSubmission:!1,hash:"5d7f2aa74874444bc6986e613ccebd7c",slug:"grapes-and-wine",bookSignature:"Antonio Morata, Iris Loira and Carmen González",coverURL:"https://cdn.intechopen.com/books/images_new/10901.jpg",editors:[{id:"180952",title:"Prof.",name:"Antonio",middleName:null,surname:"Morata",slug:"antonio-morata",fullName:"Antonio Morata"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11080",title:"Engineering Principles",subtitle:"Welding and Residual Stresses",isOpenForSubmission:!1,hash:"6c07a13a113bce94174b40096f30fb5e",slug:"engineering-principles-welding-and-residual-stresses",bookSignature:"Kavian Omar Cooke and Ronaldo Câmara Cozza",coverURL:"https://cdn.intechopen.com/books/images_new/11080.jpg",editors:[{id:"138778",title:"Dr.",name:"Kavian",middleName:"Omar",surname:"Cooke",slug:"kavian-cooke",fullName:"Kavian Cooke"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11332",title:"Essential Oils",subtitle:"Advances in Extractions and Biological Applications",isOpenForSubmission:!1,hash:"742e6cae3a35686f975edc8d7f9afa94",slug:"essential-oils-advances-in-extractions-and-biological-applications",bookSignature:"Mozaniel Santana de Oliveira and Eloisa Helena de Aguiar Andrade",coverURL:"https://cdn.intechopen.com/books/images_new/11332.jpg",editors:[{id:"195290",title:"Ph.D.",name:"Mozaniel",middleName:null,surname:"Santana De Oliveira",slug:"mozaniel-santana-de-oliveira",fullName:"Mozaniel Santana De Oliveira"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11029",title:"Hepatitis B",subtitle:null,isOpenForSubmission:!1,hash:"609701f502efc3538c112ff47a2c2119",slug:"hepatitis-b",bookSignature:"Luis Rodrigo",coverURL:"https://cdn.intechopen.com/books/images_new/11029.jpg",editors:[{id:"73208",title:"Prof.",name:"Luis",middleName:null,surname:"Rodrigo",slug:"luis-rodrigo",fullName:"Luis Rodrigo"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9537",title:"Human Rights in the Contemporary World",subtitle:null,isOpenForSubmission:!1,hash:"54f05b93812fd434f3962956d6413a6b",slug:"human-rights-in-the-contemporary-world",bookSignature:"Trudy Corrigan",coverURL:"https://cdn.intechopen.com/books/images_new/9537.jpg",editors:[{id:"197557",title:"Dr.",name:"Trudy",middleName:null,surname:"Corrigan",slug:"trudy-corrigan",fullName:"Trudy Corrigan"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11371",title:"Cerebral Circulation",subtitle:"Updates on Models, Diagnostics and Treatments of Related Diseases",isOpenForSubmission:!1,hash:"e2d3335445d2852d0b906bb9750e939f",slug:"cerebral-circulation-updates-on-models-diagnostics-and-treatments-of-related-diseases",bookSignature:"Alba Scerrati, Luca Ricciardi and Flavia Dones",coverURL:"https://cdn.intechopen.com/books/images_new/11371.jpg",editors:[{id:"182614",title:"Dr.",name:"Alba",middleName:null,surname:"Scerrati",slug:"alba-scerrati",fullName:"Alba Scerrati"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11012",title:"Radiopharmaceuticals",subtitle:"Current Research for Better Diagnosis and Therapy",isOpenForSubmission:!1,hash:"f9046d6f96148b285e776f384991120d",slug:"radiopharmaceuticals-current-research-for-better-diagnosis-and-therapy",bookSignature:"Farid A. Badria",coverURL:"https://cdn.intechopen.com/books/images_new/11012.jpg",editors:[{id:"41865",title:"Prof.",name:"Farid A.",middleName:null,surname:"Badria",slug:"farid-a.-badria",fullName:"Farid A. Badria"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9974",title:"E-Learning and Digital Education in the Twenty-First Century",subtitle:null,isOpenForSubmission:!1,hash:"88b58d66e975df20425fc1dfd22d53aa",slug:"e-learning-and-digital-education-in-the-twenty-first-century",bookSignature:"M. Mahruf C. Shohel",coverURL:"https://cdn.intechopen.com/books/images_new/9974.jpg",editors:[{id:"94099",title:"Dr.",name:"M. Mahruf C.",middleName:null,surname:"Shohel",slug:"m.-mahruf-c.-shohel",fullName:"M. Mahruf C. Shohel"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}}],offset:12,limit:12,total:4431},hotBookTopics:{hotBooks:[],offset:0,limit:12,total:null},publish:{},publishingProposal:{success:null,errors:{}},books:{featuredBooks:[{type:"book",id:"10858",title:"MOOC (Massive Open Online Courses)",subtitle:null,isOpenForSubmission:!1,hash:"d32f86793bc72dde32532f509b1ec5b0",slug:"mooc-massive-open-online-courses-",bookSignature:"Dragan Cvetković",coverURL:"https://cdn.intechopen.com/books/images_new/10858.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:1677,editors:[{id:"101330",title:"Dr.",name:"Dragan",middleName:"Mladen",surname:"Cvetković",slug:"dragan-cvetkovic",fullName:"Dragan Cvetković"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10195",title:"Serotonin and the CNS",subtitle:"New Developments in Pharmacology and Therapeutics",isOpenForSubmission:!1,hash:"7ed9d96da98233a885bd2869a8056c36",slug:"serotonin-and-the-cns-new-developments-in-pharmacology-and-therapeutics",bookSignature:"Berend Olivier",coverURL:"https://cdn.intechopen.com/books/images_new/10195.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:1337,editors:[{id:"71579",title:"Prof.",name:"Berend",middleName:null,surname:"Olivier",slug:"berend-olivier",fullName:"Berend Olivier"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10755",title:"Corporate Governance",subtitle:"Recent Advances and Perspectives",isOpenForSubmission:!1,hash:"ffe06d1d5c4bf0fc2e63511825fe1257",slug:"corporate-governance-recent-advances-and-perspectives",bookSignature:"Okechukwu Lawrence Emeagwali and Feyza Bhatti",coverURL:"https://cdn.intechopen.com/books/images_new/10755.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:1309,editors:[{id:"196317",title:"Associate Prof.",name:"Okechukwu Lawrence",middleName:null,surname:"Emeagwali",slug:"okechukwu-lawrence-emeagwali",fullName:"Okechukwu Lawrence Emeagwali"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11120",title:"Environmental Impact and Remediation of Heavy Metals",subtitle:null,isOpenForSubmission:!1,hash:"9e77514288e7394f1e6cd13481af3509",slug:"environmental-impact-and-remediation-of-heavy-metals",bookSignature:"Hosam M. Saleh and Amal I. Hassan",coverURL:"https://cdn.intechopen.com/books/images_new/11120.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:847,editors:[{id:"144691",title:"Prof.",name:"Hosam M.",middleName:null,surname:"Saleh",slug:"hosam-m.-saleh",fullName:"Hosam M. Saleh"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10901",title:"Grapes and Wine",subtitle:null,isOpenForSubmission:!1,hash:"5d7f2aa74874444bc6986e613ccebd7c",slug:"grapes-and-wine",bookSignature:"Antonio Morata, Iris Loira and Carmen González",coverURL:"https://cdn.intechopen.com/books/images_new/10901.jpg",publishedDate:"June 15th 2022",numberOfDownloads:2273,editors:[{id:"180952",title:"Prof.",name:"Antonio",middleName:null,surname:"Morata",slug:"antonio-morata",fullName:"Antonio Morata"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11080",title:"Engineering Principles",subtitle:"Welding and Residual Stresses",isOpenForSubmission:!1,hash:"6c07a13a113bce94174b40096f30fb5e",slug:"engineering-principles-welding-and-residual-stresses",bookSignature:"Kavian Omar Cooke and Ronaldo Câmara Cozza",coverURL:"https://cdn.intechopen.com/books/images_new/11080.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:591,editors:[{id:"138778",title:"Dr.",name:"Kavian",middleName:"Omar",surname:"Cooke",slug:"kavian-cooke",fullName:"Kavian Cooke"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11332",title:"Essential Oils",subtitle:"Advances in Extractions and Biological Applications",isOpenForSubmission:!1,hash:"742e6cae3a35686f975edc8d7f9afa94",slug:"essential-oils-advances-in-extractions-and-biological-applications",bookSignature:"Mozaniel Santana de Oliveira and Eloisa Helena de Aguiar Andrade",coverURL:"https://cdn.intechopen.com/books/images_new/11332.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:515,editors:[{id:"195290",title:"Ph.D.",name:"Mozaniel",middleName:null,surname:"Santana De Oliveira",slug:"mozaniel-santana-de-oliveira",fullName:"Mozaniel Santana De Oliveira"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11029",title:"Hepatitis B",subtitle:null,isOpenForSubmission:!1,hash:"609701f502efc3538c112ff47a2c2119",slug:"hepatitis-b",bookSignature:"Luis Rodrigo",coverURL:"https://cdn.intechopen.com/books/images_new/11029.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:413,editors:[{id:"73208",title:"Prof.",name:"Luis",middleName:null,surname:"Rodrigo",slug:"luis-rodrigo",fullName:"Luis Rodrigo"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9537",title:"Human Rights in the Contemporary World",subtitle:null,isOpenForSubmission:!1,hash:"54f05b93812fd434f3962956d6413a6b",slug:"human-rights-in-the-contemporary-world",bookSignature:"Trudy Corrigan",coverURL:"https://cdn.intechopen.com/books/images_new/9537.jpg",publishedDate:"June 8th 2022",numberOfDownloads:2194,editors:[{id:"197557",title:"Dr.",name:"Trudy",middleName:null,surname:"Corrigan",slug:"trudy-corrigan",fullName:"Trudy Corrigan"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11371",title:"Cerebral Circulation",subtitle:"Updates on Models, Diagnostics and Treatments of Related Diseases",isOpenForSubmission:!1,hash:"e2d3335445d2852d0b906bb9750e939f",slug:"cerebral-circulation-updates-on-models-diagnostics-and-treatments-of-related-diseases",bookSignature:"Alba Scerrati, Luca Ricciardi and Flavia Dones",coverURL:"https://cdn.intechopen.com/books/images_new/11371.jpg",publishedDate:"June 23rd 2022",numberOfDownloads:341,editors:[{id:"182614",title:"Dr.",name:"Alba",middleName:null,surname:"Scerrati",slug:"alba-scerrati",fullName:"Alba Scerrati"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}}],latestBooks:[{type:"book",id:"11043",title:"Endometriosis",subtitle:"Recent Advances, New Perspectives and Treatments",isOpenForSubmission:!1,hash:"7baf1c70b11d41400bb9302ae9411ca4",slug:"endometriosis-recent-advances-new-perspectives-and-treatments",bookSignature:"Giovana Ap. Gonçalves",coverURL:"https://cdn.intechopen.com/books/images_new/11043.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"185930",title:"Associate Prof.",name:"Giovana",middleName:null,surname:"Gonçalves",slug:"giovana-goncalves",fullName:"Giovana Gonçalves"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10536",title:"Campylobacter",subtitle:null,isOpenForSubmission:!1,hash:"c4b132b741dd0a2ed539b824ab63965f",slug:"campylobacter",bookSignature:"Guillermo Tellez-Isaias and Saeed El-Ashram",coverURL:"https://cdn.intechopen.com/books/images_new/10536.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"73465",title:"Dr.",name:"Guillermo",middleName:null,surname:"Téllez",slug:"guillermo-tellez",fullName:"Guillermo Téllez"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10798",title:"Starch",subtitle:"Evolution and Recent Advances",isOpenForSubmission:!1,hash:"f197f6062c1574a9a90e50a369271bcf",slug:"starch-evolution-and-recent-advances",bookSignature:"Martins Ochubiojo Emeje",coverURL:"https://cdn.intechopen.com/books/images_new/10798.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"94311",title:"Prof.",name:"Martins",middleName:"Ochubiojo",surname:"Ochubiojo Emeje",slug:"martins-ochubiojo-emeje",fullName:"Martins Ochubiojo Emeje"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11083",title:"Hazardous Waste Management",subtitle:null,isOpenForSubmission:!1,hash:"d553bd4f6f1c4b115ca69bd19faac7dc",slug:"hazardous-waste-management",bookSignature:"Rajesh Banu Jeyakumar, Kavitha Sankarapandian and Yukesh Kannah Ravi",coverURL:"https://cdn.intechopen.com/books/images_new/11083.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"218539",title:"Dr.",name:"Rajesh Banu",middleName:null,surname:"Jeyakumar",slug:"rajesh-banu-jeyakumar",fullName:"Rajesh Banu Jeyakumar"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10848",title:"Tribology of Machine Elements",subtitle:"Fundamentals and Applications",isOpenForSubmission:!1,hash:"3c4ca4c4692ca8d4fa749b4ae81ec1fa",slug:"tribology-of-machine-elements-fundamentals-and-applications",bookSignature:"Giuseppe Pintaude, Tiago Cousseau and Anna Rudawska",coverURL:"https://cdn.intechopen.com/books/images_new/10848.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"18347",title:"Prof.",name:"Giuseppe",middleName:null,surname:"Pintaude",slug:"giuseppe-pintaude",fullName:"Giuseppe Pintaude"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10856",title:"Crude Oil",subtitle:"New Technologies and Recent Approaches",isOpenForSubmission:!1,hash:"8d0a7ca35b3de95b295dc4eab39a087e",slug:"crude-oil-new-technologies-and-recent-approaches",bookSignature:"Manar Elsayed Abdel-Raouf and Mohamed Hasan El-Keshawy",coverURL:"https://cdn.intechopen.com/books/images_new/10856.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"102626",title:"Prof.",name:"Manar",middleName:null,surname:"Elsayed Abdel-Raouf",slug:"manar-elsayed-abdel-raouf",fullName:"Manar Elsayed Abdel-Raouf"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9625",title:"Spinocerebellar Ataxia",subtitle:"Concepts, Particularities and Generalities",isOpenForSubmission:!1,hash:"365a7025fd46eb45de2549bdd9d50b98",slug:"spinocerebellar-ataxia-concepts-particularities-and-generalities",bookSignature:"Patricia Bozzetto Ambrosi",coverURL:"https://cdn.intechopen.com/books/images_new/9625.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"221787",title:"Dr.",name:"Patricia",middleName:null,surname:"Bozzetto Ambrosi",slug:"patricia-bozzetto-ambrosi",fullName:"Patricia Bozzetto Ambrosi"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10905",title:"Plant Defense Mechanisms",subtitle:null,isOpenForSubmission:!1,hash:"84ad5b27dde5f01dc76087d0fd6fa834",slug:"plant-defense-mechanisms",bookSignature:"Josphert Ngui Kimatu",coverURL:"https://cdn.intechopen.com/books/images_new/10905.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"224171",title:"Prof.",name:"Josphert N.",middleName:null,surname:"Kimatu",slug:"josphert-n.-kimatu",fullName:"Josphert N. Kimatu"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10686",title:"Natural Gas",subtitle:"New Perspectives and Future Developments",isOpenForSubmission:!1,hash:"581763788a6a59e653a9d1d9b5a42d79",slug:"natural-gas-new-perspectives-and-future-developments",bookSignature:"Maryam Takht Ravanchi",coverURL:"https://cdn.intechopen.com/books/images_new/10686.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"2416",title:"Dr.",name:"Maryam",middleName:null,surname:"Takht Ravanchi",slug:"maryam-takht-ravanchi",fullName:"Maryam Takht Ravanchi"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10988",title:"Railway Transport Planning and Manageme",subtitle:null,isOpenForSubmission:!1,hash:"5cb54cc53caedad9ec78372563c82e2c",slug:"railway-transport-planning-and-management",bookSignature:"Stefano de Luca, Roberta Di Pace and Chiara Fiori",coverURL:"https://cdn.intechopen.com/books/images_new/10988.jpg",editedByType:"Edited by",publishedDate:"June 28th 2022",editors:[{id:"271061",title:"Prof.",name:"Stefano",middleName:null,surname:"de Luca",slug:"stefano-de-luca",fullName:"Stefano de Luca"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}]},subject:{topic:{id:"1370",title:"Manufacturing Engineering",slug:"technology-material-science-manufacturing-engineering",parent:{id:"292",title:"Material Science",slug:"technology-material-science"},numberOfBooks:4,numberOfSeries:0,numberOfAuthorsAndEditors:48,numberOfWosCitations:55,numberOfCrossrefCitations:49,numberOfDimensionsCitations:83,videoUrl:null,fallbackUrl:null,description:null},booksByTopicFilter:{topicId:"1370",sort:"-publishedDate",limit:12,offset:0},booksByTopicCollection:[{type:"book",id:"10045",title:"Fillers",subtitle:null,isOpenForSubmission:!1,hash:"aac44d6491e740af99bec2f62aa05883",slug:"fillers",bookSignature:"Emmanuel Flores Huicochea",coverURL:"https://cdn.intechopen.com/books/images_new/10045.jpg",editedByType:"Edited by",editors:[{id:"206705",title:"Dr.",name:"Emmanuel",middleName:null,surname:"Flores Huicochea",slug:"emmanuel-flores-huicochea",fullName:"Emmanuel Flores Huicochea"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"6306",title:"Additive Manufacturing of High-performance Metals and Alloys",subtitle:"Modeling and Optimization",isOpenForSubmission:!1,hash:"0e08cc35cef3caf389096ca4b999742f",slug:"additive-manufacturing-of-high-performance-metals-and-alloys-modeling-and-optimization",bookSignature:"Igor V. Shishkovsky",coverURL:"https://cdn.intechopen.com/books/images_new/6306.jpg",editedByType:"Edited by",editors:[{id:"178616",title:"Prof.",name:"Igor",middleName:"V.",surname:"Shishkovsky",slug:"igor-shishkovsky",fullName:"Igor Shishkovsky"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"5759",title:"Lamination",subtitle:"Theory and Application",isOpenForSubmission:!1,hash:"9a4f81291f9d75ed83b1f4f5e0b56f36",slug:"lamination-theory-and-application",bookSignature:"Charles A. Osheku",coverURL:"https://cdn.intechopen.com/books/images_new/5759.jpg",editedByType:"Edited by",editors:[{id:"148660",title:"Dr.",name:"Charles",middleName:"Attah",surname:"Osheku",slug:"charles-osheku",fullName:"Charles Osheku"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"3683",title:"Engineering the Future",subtitle:null,isOpenForSubmission:!1,hash:null,slug:"engineering-the-future",bookSignature:"Laszlo Dudas",coverURL:"https://cdn.intechopen.com/books/images_new/3683.jpg",editedByType:"Edited by",editors:[{id:"135546",title:"Prof.",name:"Laszlo",middleName:null,surname:"Dudas",slug:"laszlo-dudas",fullName:"Laszlo Dudas"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}],booksByTopicTotal:4,seriesByTopicCollection:[],seriesByTopicTotal:0,mostCitedChapters:[{id:"12376",doi:"10.5772/10380",title:"Digital Factory – Theory and Practice",slug:"digital-factory-theory-and-practice",totalDownloads:7065,totalCrossrefCites:9,totalDimensionsCites:14,abstract:null,book:{id:"3683",slug:"engineering-the-future",title:"Engineering the Future",fullTitle:"Engineering the Future"},signatures:"Milan Gregor and Stefan Medvecky",authors:null},{id:"60707",doi:"10.5772/intechopen.75832",title:"Processing Parameters for Selective Laser Sintering or Melting of Oxide Ceramics",slug:"processing-parameters-for-selective-laser-sintering-or-melting-of-oxide-ceramics",totalDownloads:2050,totalCrossrefCites:6,totalDimensionsCites:11,abstract:"In this chapter, we present a detailed introduction to the factors which influence laser powder bed fusion (LPBF) on oxide ceramics. These factors can be in general divided in three main categories: laser-related factors (wavelength, power, scanning speed, hatch distance, scan pattern, beam diameter, etc.), powder- and material-related factors (flowability, size distribution, shape, powder deposition, thickness of deposited layers, etc.), and other factors (pre- or post-processing, inert gas atmosphere, etc.). The process parameters directly affect the amount of energy delivered to the surface of the thin layer and the energy density absorbed by the powders; therefore, decide the physical and mechanical properties of the built parts, such as relative density, porosity, surface roughness, dimensional accuracy, strength, etc. The parameter-property relation is hence reviewed for the most studied oxide ceramic materials, including families from alumina, silica, and some ceramic mixtures. Among those parameters, reducing temperature gradient which decreases the thermal stresses is one of the key factors to improve the ceramic quality. Although realizing crack-free ceramics combined with a smooth surface is still a major challenge, through optimizing the parameters, it is possible for LPBF processed ceramic parts to achieve properties close to those of conventionally produced ceramics.",book:{id:"6306",slug:"additive-manufacturing-of-high-performance-metals-and-alloys-modeling-and-optimization",title:"Additive Manufacturing of High-performance Metals and Alloys",fullTitle:"Additive Manufacturing of High-performance Metals and Alloys - Modeling and Optimization"},signatures:"Haidong Zhang and Saniya LeBlanc",authors:[{id:"213235",title:"Prof.",name:"Saniya",middleName:null,surname:"LeBlanc",slug:"saniya-leblanc",fullName:"Saniya LeBlanc"},{id:"213239",title:"Dr.",name:"Haidong",middleName:null,surname:"Zhang",slug:"haidong-zhang",fullName:"Haidong Zhang"}]},{id:"59094",doi:"10.5772/intechopen.72973",title:"Structure and Properties of the Bulk Standard Samples and Cellular Energy Absorbers",slug:"structure-and-properties-of-the-bulk-standard-samples-and-cellular-energy-absorbers",totalDownloads:730,totalCrossrefCites:3,totalDimensionsCites:9,abstract:"The development of additive technology revealed a real prospect of their use for the manufacture of complex shapes. Now, it is possible to produce parts that previously were either very difficult to produce using the subtracting technology and joining technology, or it was not at all feasible. In the manufacture of parts of complex shape, it is necessary to use a supporting structure, which is necessary to place such a way that they can be easily removed. Additionally, they must necessarily be absent in certain places. In this regard, the preparation model can take significant time to satisfy all of these, often conflicting, requirements. In this paper, we show optimization examples of the model preparation with support structures for parts manufactured at the facility EOSINT M270 and used in medicine and engineering. Additional emphasis is on the fact that, during the manufacture of parts, solidification’s modes of massive parts differ from those of the thin-walled portions of parts. The results of the complex studies on the different stainless steels (including martensitic) are described with an emphasis on their structure and mechanical properties. The results of a honeycomb energy absorbers, which are quite seldom produced by the additive technologies, are presented in this chapter.",book:{id:"6306",slug:"additive-manufacturing-of-high-performance-metals-and-alloys-modeling-and-optimization",title:"Additive Manufacturing of High-performance Metals and Alloys",fullTitle:"Additive Manufacturing of High-performance Metals and Alloys - Modeling and Optimization"},signatures:"Pavel Kuznetcov, Anton Zhukov, Artem Deev, Vitaliy Bobyr and\nMikhail Staritcyn",authors:[{id:"223064",title:"Dr.",name:"Pavel",middleName:null,surname:"Kuznetsov",slug:"pavel-kuznetsov",fullName:"Pavel Kuznetsov"},{id:"227212",title:"Mr.",name:"Artem",middleName:null,surname:"Deev",slug:"artem-deev",fullName:"Artem Deev"},{id:"227213",title:"Mr.",name:"Vitaliy",middleName:null,surname:"Bobyr",slug:"vitaliy-bobyr",fullName:"Vitaliy Bobyr"},{id:"227215",title:"Mr.",name:"Anton",middleName:null,surname:"Zhukov",slug:"anton-zhukov",fullName:"Anton Zhukov"},{id:"227216",title:"Mr.",name:"Mikhail",middleName:null,surname:"Staritcyn",slug:"mikhail-staritcyn",fullName:"Mikhail Staritcyn"}]},{id:"59742",doi:"10.5772/intechopen.74331",title:"Advanced Technologies in Manufacturing 3D-Layered Structures for Defense and Aerospace",slug:"advanced-technologies-in-manufacturing-3d-layered-structures-for-defense-and-aerospace",totalDownloads:1805,totalCrossrefCites:6,totalDimensionsCites:7,abstract:"In the past 20 years, a great progress has been made in additive manufacturing techniques, which has led to numerous applications in aeronautical and defense structures. Though not all advanced materials and alloys, can be automatically layered by a rapid prototyping system or machine, several interesting application have seen the light of publicity in many sectors. Efforts are underway to apply the automated layering technologies in as many materials as possible, mostly nowadays plastics, reinforced-polymers, and metals can be processed by such systems in order to produce three-dimensional parts. The work is underway internationally in order to promote more and more applications of additive manufacturing or automated layering and to lower the costs in such systems. This paper aims at presenting a review of the additive manufacturing history presenting the major steps that lead to the explosion of this technology, and with a special focus on advanced 3D structures in aerospace and defense applications. An insight is also given on the four dimensions of manufacturing concept.",book:{id:"5759",slug:"lamination-theory-and-application",title:"Lamination",fullTitle:"Lamination - Theory and Application"},signatures:"Dionysios E. Mouzakis",authors:[{id:"107011",title:"Associate Prof.",name:"Dionysios",middleName:"E.",surname:"Mouzakis",slug:"dionysios-mouzakis",fullName:"Dionysios Mouzakis"}]},{id:"61242",doi:"10.5772/intechopen.76860",title:"Theory and Technology of Direct Laser Deposition",slug:"theory-and-technology-of-direct-laser-deposition",totalDownloads:1258,totalCrossrefCites:5,totalDimensionsCites:7,abstract:"Presently the additive technologies in manufacturing are widely developed in all industrialized countries. Replacing the traditional technology of casting and machining with additive technologies, one can significantly reduce material consumption and labor costs. They also allow obtaining products with desired properties. The most promising for manufacturing large-sized products is the additive technology of high-speed direct laser deposition. Using this technology allows to create complex parts and construction to one technological operation without using addition equipment and tools. This technology allows decreasing of consumption of raw materials and decrease amount of waste. Equipment for realization of DLD technology is universal and based on module design principle. DLD is based on layer-by-layer deposition and melting of powder by laser beam from using a sliced 3D computer-aided design (CAD) file. The materials used are powders based on Fe, Ni, and Ti. This chapter presents the results of machine design and research HS DLD technology from various materials.",book:{id:"6306",slug:"additive-manufacturing-of-high-performance-metals-and-alloys-modeling-and-optimization",title:"Additive Manufacturing of High-performance Metals and Alloys",fullTitle:"Additive Manufacturing of High-performance Metals and Alloys - Modeling and Optimization"},signatures:"Gleb Turichin and Olga Klimova-Korsmik",authors:[{id:"212068",title:"Dr.",name:null,middleName:null,surname:"Klimova-Korsmik",slug:"klimova-korsmik",fullName:"Klimova-Korsmik"}]}],mostDownloadedChaptersLast30Days:[{id:"80125",title:"Perspective Chapter: Additive Manufactured Zirconia-Based Bio-Ceramics for Biomedical Applications",slug:"perspective-chapter-additive-manufactured-zirconia-based-bio-ceramics-for-biomedical-applications",totalDownloads:164,totalCrossrefCites:1,totalDimensionsCites:1,abstract:"Zirconia was established as one of the chief vital ceramic materials for its superior mechanical permanency and biocompatibility, which make it a popular material for dental and orthopedic applications. This has inspired biomedical engineers to exploit zirconia-based bioceramics for dental restorations and repair of load-bearing bone defects caused by cancer, arthritis, and trauma. Additive manufacturing (AM) is being promoted as a possible technique for mimicking the complex architecture of human tissues, and advancements reported in the recent past make it a suitable choice for clinical applications. AM is a bottom-up approach that can offer a high resolution to 3D printed zirconia-based bioceramics for implants, prostheses, and scaffold manufacturing. Substantial research has been initiated worldwide on a large scale for reformatting and optimizing zirconia bioceramics for biomedical applications to maximize the clinical potential of AM. This book chapter provides a comprehensive summary of zirconia-based bioceramics using AM techniques for biomedical applications and highlights the challenges related to AM of zirconia.",book:{id:"10974",slug:null,title:"Advanced Additive Manufacturing",fullTitle:"Advanced Additive Manufacturing"},signatures:"Sakthiabirami Kumaresan, Soundharrajan Vaiyapuri, Jin-Ho Kang, Nileshkumar Dubey, Geetha Manivasagam, Kwi-Dug Yun and Sang-Won Park",authors:null},{id:"60707",title:"Processing Parameters for Selective Laser Sintering or Melting of Oxide Ceramics",slug:"processing-parameters-for-selective-laser-sintering-or-melting-of-oxide-ceramics",totalDownloads:2050,totalCrossrefCites:6,totalDimensionsCites:11,abstract:"In this chapter, we present a detailed introduction to the factors which influence laser powder bed fusion (LPBF) on oxide ceramics. These factors can be in general divided in three main categories: laser-related factors (wavelength, power, scanning speed, hatch distance, scan pattern, beam diameter, etc.), powder- and material-related factors (flowability, size distribution, shape, powder deposition, thickness of deposited layers, etc.), and other factors (pre- or post-processing, inert gas atmosphere, etc.). The process parameters directly affect the amount of energy delivered to the surface of the thin layer and the energy density absorbed by the powders; therefore, decide the physical and mechanical properties of the built parts, such as relative density, porosity, surface roughness, dimensional accuracy, strength, etc. The parameter-property relation is hence reviewed for the most studied oxide ceramic materials, including families from alumina, silica, and some ceramic mixtures. Among those parameters, reducing temperature gradient which decreases the thermal stresses is one of the key factors to improve the ceramic quality. Although realizing crack-free ceramics combined with a smooth surface is still a major challenge, through optimizing the parameters, it is possible for LPBF processed ceramic parts to achieve properties close to those of conventionally produced ceramics.",book:{id:"6306",slug:"additive-manufacturing-of-high-performance-metals-and-alloys-modeling-and-optimization",title:"Additive Manufacturing of High-performance Metals and Alloys",fullTitle:"Additive Manufacturing of High-performance Metals and Alloys - Modeling and Optimization"},signatures:"Haidong Zhang and Saniya LeBlanc",authors:[{id:"213235",title:"Prof.",name:"Saniya",middleName:null,surname:"LeBlanc",slug:"saniya-leblanc",fullName:"Saniya LeBlanc"},{id:"213239",title:"Dr.",name:"Haidong",middleName:null,surname:"Zhang",slug:"haidong-zhang",fullName:"Haidong Zhang"}]},{id:"56537",title:"Multiscale Hierarchical Structure and Laminated Strengthening and Toughening Mechanisms",slug:"multiscale-hierarchical-structure-and-laminated-strengthening-and-toughening-mechanisms",totalDownloads:1483,totalCrossrefCites:3,totalDimensionsCites:3,abstract:"Metal matrix composites with multiscale hierarchical structure and laminated structure have been developed to provide a novel route to achieve high strength, toughness and ductility. In this chapter, a lot of scientific research has been carried out in the preparation, processing, properties and application of metal matrix composite. Many toughening mechanisms and fracture behavior of composites with multiscale hierarchical structure and laminated structure are overviewed. It is revealed that elastic property and yield strength of laminated composites follow the “rule of average.” However, the estimation of fracture elongation and fracture toughness is complex, which is inconsistent with the “rule of average.” The fracture elongation of laminated composites is related to the layer thickness size, interface, gradient structure, strain hardening exponent, strain rate parameter and tunnel crack, which are accompanied with crack deflection, crack blunting, crack bridging, stress redistribution, local stress deformation, interfacial delamination crack and so on. The concept of laminated composites can be extended by applying different combination of individual layer, and provides theoretical as well as experimental fundamentals on strengthening and toughening of metal matrix composites.",book:{id:"5759",slug:"lamination-theory-and-application",title:"Lamination",fullTitle:"Lamination - Theory and Application"},signatures:"Baoxi Liu, Lujun Huang, Lin Geng and Fuxing Yin",authors:[{id:"140305",title:"Dr.",name:"Lin",middleName:null,surname:"Geng",slug:"lin-geng",fullName:"Lin Geng"},{id:"197727",title:"Dr.",name:"Baoxi",middleName:null,surname:"Liu",slug:"baoxi-liu",fullName:"Baoxi Liu"},{id:"197732",title:"Prof.",name:"Lujun",middleName:null,surname:"Huang",slug:"lujun-huang",fullName:"Lujun Huang"},{id:"207654",title:"Prof.",name:"Fuxing",middleName:null,surname:"Yin",slug:"fuxing-yin",fullName:"Fuxing Yin"}]},{id:"56424",title:"Bending of Laminated Composite Plates in Layerwise Theory",slug:"bending-of-laminated-composite-plates-in-layerwise-theory",totalDownloads:1401,totalCrossrefCites:1,totalDimensionsCites:4,abstract:"Determination of stress‐strain state in contemporary laminated composite plates containing layers with continuous unidirectional fibers requires the application of refined plate theories, which include layerwise theory. In contrast to homogeneous isotropic plates, heterogeneity of the anisotropic structure of laminated composite plates often leads to the appearance of imperfections in the connection between the layers. Mathematical models, which are formed on the assumption that the plate is homogeneous and isotropic, cannot properly include irregularities that can occur at the level of the layer in the process of manufacture, transportation, installation, or exploitation. Mathematical models of layerwise theory allow defining a more realistic stress‐strain state through the thickness of the plate, where consideration is carried out at the level of the layer. Additionally, this model makes possible to include delaminations that might occur on the connection between the individual layers. In this chapter, Reddy's layerwise theory is applied in order to determine equations for the problem of bending of laminated composite plates. The bending equations are solved by applying analytical method by means of double trigonometric series, as well as by using numerical methods based on the finite elements. This chapter presents examples for both applied approaches.",book:{id:"5759",slug:"lamination-theory-and-application",title:"Lamination",fullTitle:"Lamination - Theory and Application"},signatures:"Marina Rakočević",authors:[{id:"205043",title:"Prof.",name:"Marina",middleName:null,surname:"Rakocevic",slug:"marina-rakocevic",fullName:"Marina Rakocevic"}]},{id:"59742",title:"Advanced Technologies in Manufacturing 3D-Layered Structures for Defense and Aerospace",slug:"advanced-technologies-in-manufacturing-3d-layered-structures-for-defense-and-aerospace",totalDownloads:1805,totalCrossrefCites:6,totalDimensionsCites:7,abstract:"In the past 20 years, a great progress has been made in additive manufacturing techniques, which has led to numerous applications in aeronautical and defense structures. Though not all advanced materials and alloys, can be automatically layered by a rapid prototyping system or machine, several interesting application have seen the light of publicity in many sectors. Efforts are underway to apply the automated layering technologies in as many materials as possible, mostly nowadays plastics, reinforced-polymers, and metals can be processed by such systems in order to produce three-dimensional parts. The work is underway internationally in order to promote more and more applications of additive manufacturing or automated layering and to lower the costs in such systems. This paper aims at presenting a review of the additive manufacturing history presenting the major steps that lead to the explosion of this technology, and with a special focus on advanced 3D structures in aerospace and defense applications. An insight is also given on the four dimensions of manufacturing concept.",book:{id:"5759",slug:"lamination-theory-and-application",title:"Lamination",fullTitle:"Lamination - Theory and Application"},signatures:"Dionysios E. Mouzakis",authors:[{id:"107011",title:"Associate Prof.",name:"Dionysios",middleName:"E.",surname:"Mouzakis",slug:"dionysios-mouzakis",fullName:"Dionysios Mouzakis"}]}],onlineFirstChaptersFilter:{topicId:"1370",limit:6,offset:0},onlineFirstChaptersCollection:[{id:"82089",title:"Perspective Chapter: Breaking the Barriers – Additive Technologies (AX) for Integrated Process Chains and Integrated Devices (IDs) for Hybrid Product Architectures",slug:"perspective-chapter-breaking-the-barriers-additive-technologies-ax-for-integrated-process-chains-and",totalDownloads:18,totalDimensionsCites:0,doi:"10.5772/intechopen.104891",abstract:"Additive technology has evolved from rapid prototyping to rapid tooling and manufacturing of load-bearing parts for productive use. Application potential is limited by constituent strengths and weaknesses. To enfold its full potential, research, development, and industrial application have to facilitate combinations of additive and conventional technology. The concept of additive parts manufacturing has to be expanded to a mature technology contributing and facilitating hybrid products and integrated process chains. From a two-dimensional reference model, approaches to integration are derived, and their status is briefly outlined: Efforts to facilitate postprocessing by design for additive manufacturing (DfAM) and hybrid manufacturing have been raised to awareness and are being worked on. Yet, integration of pre-fabricated structures is hardly accounted for, although it bears the potential for a paradigmatic shift in manufacturing: With a wider concept of layer-based processes, Additive Technology could form the core technology for integration of components and functions to Integrated Devices, following the model of the Integrated Circuits and packaging technology in microelectronics and Microelectromechanical Systems. First developments are outlined, but research and development effort has to be dedicated to novel additive processes for this application. Finally, workflows for product developers need to be modified and trained to plan hybrid product architectures already in conceptual phases.",book:{id:"10974",title:"Advanced Additive Manufacturing",coverURL:"https://cdn.intechopen.com/books/images_new/10974.jpg"},signatures:"Matthias Dahlmeyer and Sebastian Noller"},{id:"81952",title:"Perspective Chapter: Multi-Material in 3D Printing for Engineering Applications",slug:"perspective-chapter-multi-material-in-3d-printing-for-engineering-applications",totalDownloads:23,totalDimensionsCites:0,doi:"10.5772/intechopen.102564",abstract:"3D Printing or Additive Manufacturing is one of a novel method in manufacturing of materials with increased accuracy of manufacturing in terms of complexity in parts, design of aerospace and defense parts, light-weighting, etc., This manufacturing method involves layer-by-layer printing or deposition of materials or metals into the perfectly aligned especially in corners, edges and in most complex designs. The design process mostly involved software so that production cost could be estimated in the design stage itself. Additive Manufacturing is one of the most promising approach for small and low-volume productions. The filament used for the process is prominent to the designer, along with the various printing processes. Recent modern printing techniques involve multiple nozzles, whereas designers can use multiple materials on single printing. The use of multi-material in a single part enables the manufacturer to rapidly produce products which have specific applications. This chapter discusses about various multi-material with different mechanical properties that can be used for structural applications through different printing technologies on various precious applications. This technology is quickly adopted by even small-scale industries in recent times.",book:{id:"10974",title:"Advanced Additive Manufacturing",coverURL:"https://cdn.intechopen.com/books/images_new/10974.jpg"},signatures:"Rajkumar Velu, R. Sathishkumar and A. Saiyathibrahim"},{id:"80282",title:"Modeling of LPBF Scanning Strategy and its Correlation with the Metallic 316 L, 321, and Alnico Magnets Samples Structure",slug:"modeling-of-lpbf-scanning-strategy-and-its-correlation-with-the-metallic-316-l-321-and-alnico-magnet",totalDownloads:17,totalDimensionsCites:0,doi:"10.5772/intechopen.102073",abstract:"This chapter presents the influence of powder bed laser scanning strategy on the crystallographic structure of the fused specimens 316 L, 321 stainless steel, and Alnico magnets. The main parameters affecting structure are as follows—laser power, stripe width, number of repeated passes with different power, and type of scanning (circle, bidirectional or interlaced, etc.). Changes in the crystallographic structure are studied with regard to melt pool geometry, surface temperature, and surface heat transfer. The correlation is shown between stripe width and laser beam focal spot diameter. Depending on the ratio between stripe width and laser beam focal spot diameter one can see growth elongated and oriented grains or quasi-equiaxed non-oriented grains. The influence of the energy input on the melt pool size and the microstructure of the sample is studied. The influence of the scanning mode (bidirectional and circular) on the temperature distribution in the sample and the microstructure of the sample made of Alnico alloy is considered. All these experimental and model examples clearly demonstrate that it is possible to produce a controllable structure during LPBF process building for advanced additive manufacturing.",book:{id:"10974",title:"Advanced Additive Manufacturing",coverURL:"https://cdn.intechopen.com/books/images_new/10974.jpg"},signatures:"Pavel Kuznetsov, Anna Mozhayko, Ivan Shakirov, Vitaliy Bobyr, Mikhail Staritsyn and Anton Zhukov"},{id:"81649",title:"Pure Copper: Advanced Additive Manufacturing",slug:"pure-copper-advanced-additive-manufacturing",totalDownloads:46,totalDimensionsCites:0,doi:"10.5772/intechopen.103673",abstract:"This book chapter elaborates on different additive manufacturing (AM) processes of copper and copper alloys. The scope is to give the reader a basic understanding of the state-of-the-art of copper additive manufacturing by different AM technologies, such as laser powder bed fusion (LPBF), laser metal deposition (LMD), binder jetting (BJ), and metal-fused filament fabrication (M-FFF). Furthermore, we want the reader to be able to use this knowledge to find and assess potential use cases. Recently, with the commercial availability of green laser sources, the difficulties for laser processing of pure copper were overcome, which gave AM technologies, such as LPBF and LMD new momentum and increased interest. AM technologies involving a subsequent sintering step. They are relatively new and gained interest due to fast build-up rates (BJ) or ease of operation (M-FFF). We will cover important material-related properties of copper and its implications for manufacturing and application (e.g. absorption, sinterability, conductivity, and its dependency on impurities). Further, we address applications for AM copper, present the state-of-the-art for above mentioned AM technologies and share our own recent research in this field.",book:{id:"10974",title:"Advanced Additive Manufacturing",coverURL:"https://cdn.intechopen.com/books/images_new/10974.jpg"},signatures:"Lukas Stepien, Samira Gruber, Moritz Greifzu, Mirko Riede and Aljoscha Roch"},{id:"81624",title:"Functionally Modified Composites for FDM 3D Printing",slug:"functionally-modified-composites-for-fdm-3d-printing",totalDownloads:30,totalDimensionsCites:0,doi:"10.5772/intechopen.104637",abstract:"Fused Deposition Modeling (FDM) 3D printing is an additive manufacturing technique used to fabricate solid thermoplastic polymer objects directly from computer-modeled designs. The current uses for this technology are restricted due to a limited choice of materials, which offer minimal functionality to the printed 3D parts. To expand the application space for FDM-based 3D printing, this chapter is aimed to add functional attributes to printable polymers through the creation of thermoplastic composites. The work focuses on a simple fabrication method to create composite for FDM printing and analytical techniques to characterize dispersion, thermal, and mechanical properties of the nanocomposite. Lastly, the functional characteristics of the FDM printed nanocomposite including their conductivity, ferromagnetism, and radiation shielding properties were studied.",book:{id:"10974",title:"Advanced Additive Manufacturing",coverURL:"https://cdn.intechopen.com/books/images_new/10974.jpg"},signatures:"Smith Woosley and Shyam Aravamudhan"},{id:"81187",title:"Quality Control of Metal Additive Manufacturing",slug:"quality-control-of-metal-additive-manufacturing",totalDownloads:59,totalDimensionsCites:0,doi:"10.5772/intechopen.103121",abstract:"Metal Additive Manufacturing (AM) is an emerging technology for rapid prototype manufacturing, and the structural integrity of printed structures is extremely important and should meet the specifications and high standards of the above industries. In several metal AM techniques, residual stresses and micro-cracks that occur during the manufacturing procedure can result in irreversible damage and structural failure of the object after its manufacturing. Thus effective quality control of AM is highly required. Most Non-Destructive Testing (NDT) techniques (X-Ray, Computed Tomography, Thermography) are ineffective in detecting residual stresses. Bulk, cost, and resolution are limitations of such technologies. These methods are time consuming both for data acquisition and data analysis and have not yet been successfully integrated into AM technology. However two sets of NDT techniques: Electromagnetic Acoustic Transducers (EMAT) and Eddy Current (EC) Testing, can be applied for residual stress detection for AM techniques. Therefore a crucial and novel extension system incorporation of big data collection from sensors of the both techniques and analysis through machine learning (ML) can estimate the likelihood of the AM techniques to introduce anomalies into the printed structures, which can be used as an on-line monitoring and detection system to control the quality of AM.",book:{id:"10974",title:"Advanced Additive Manufacturing",coverURL:"https://cdn.intechopen.com/books/images_new/10974.jpg"},signatures:"Bojie Sheng, Jamil Kanfoud and Tat-Hean Gan"}],onlineFirstChaptersTotal:13},preDownload:{success:null,errors:{}},subscriptionForm:{success:null,errors:{}},aboutIntechopen:{},privacyPolicy:{},peerReviewing:{},howOpenAccessPublishingWithIntechopenWorks:{},sponsorshipBooks:{sponsorshipBooks:[],offset:0,limit:8,total:null},allSeries:{pteSeriesList:[{id:"14",title:"Artificial Intelligence",numberOfPublishedBooks:9,numberOfPublishedChapters:89,numberOfOpenTopics:6,numberOfUpcomingTopics:0,issn:"2633-1403",doi:"10.5772/intechopen.79920",isOpenForSubmission:!0},{id:"7",title:"Biomedical Engineering",numberOfPublishedBooks:12,numberOfPublishedChapters:104,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2631-5343",doi:"10.5772/intechopen.71985",isOpenForSubmission:!0}],lsSeriesList:[{id:"11",title:"Biochemistry",numberOfPublishedBooks:32,numberOfPublishedChapters:318,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2632-0983",doi:"10.5772/intechopen.72877",isOpenForSubmission:!0},{id:"25",title:"Environmental Sciences",numberOfPublishedBooks:1,numberOfPublishedChapters:12,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2754-6713",doi:"10.5772/intechopen.100362",isOpenForSubmission:!0},{id:"10",title:"Physiology",numberOfPublishedBooks:11,numberOfPublishedChapters:141,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2631-8261",doi:"10.5772/intechopen.72796",isOpenForSubmission:!0}],hsSeriesList:[{id:"3",title:"Dentistry",numberOfPublishedBooks:8,numberOfPublishedChapters:129,numberOfOpenTopics:2,numberOfUpcomingTopics:0,issn:"2631-6218",doi:"10.5772/intechopen.71199",isOpenForSubmission:!0},{id:"6",title:"Infectious Diseases",numberOfPublishedBooks:13,numberOfPublishedChapters:113,numberOfOpenTopics:3,numberOfUpcomingTopics:1,issn:"2631-6188",doi:"10.5772/intechopen.71852",isOpenForSubmission:!0},{id:"13",title:"Veterinary Medicine and Science",numberOfPublishedBooks:11,numberOfPublishedChapters:106,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2632-0517",doi:"10.5772/intechopen.73681",isOpenForSubmission:!0}],sshSeriesList:[{id:"22",title:"Business, Management and Economics",numberOfPublishedBooks:1,numberOfPublishedChapters:19,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2753-894X",doi:"10.5772/intechopen.100359",isOpenForSubmission:!0},{id:"23",title:"Education and Human Development",numberOfPublishedBooks:0,numberOfPublishedChapters:5,numberOfOpenTopics:1,numberOfUpcomingTopics:1,issn:null,doi:"10.5772/intechopen.100360",isOpenForSubmission:!0},{id:"24",title:"Sustainable Development",numberOfPublishedBooks:0,numberOfPublishedChapters:15,numberOfOpenTopics:5,numberOfUpcomingTopics:0,issn:null,doi:"10.5772/intechopen.100361",isOpenForSubmission:!0}],testimonialsList:[{id:"6",text:"It is great to work with the IntechOpen to produce a worthwhile collection of research that also becomes a great educational resource and guide for future research endeavors.",author:{id:"259298",name:"Edward",surname:"Narayan",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/259298/images/system/259298.jpeg",slug:"edward-narayan",institution:{id:"3",name:"University of Queensland",country:{id:null,name:"Australia"}}}},{id:"13",text:"The collaboration with and support of the technical staff of IntechOpen is fantastic. The whole process of submitting an article and editing of the submitted article goes extremely smooth and fast, the number of reads and downloads of chapters is high, and the contributions are also frequently cited.",author:{id:"55578",name:"Antonio",surname:"Jurado-Navas",institutionString:null,profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRisIQAS/Profile_Picture_1626166543950",slug:"antonio-jurado-navas",institution:{id:"720",name:"University of Malaga",country:{id:null,name:"Spain"}}}}]},series:{item:{id:"11",title:"Biochemistry",doi:"10.5772/intechopen.72877",issn:"2632-0983",scope:"Biochemistry, the study of chemical transformations occurring within living organisms, impacts all areas of life sciences, from molecular crystallography and genetics to ecology, medicine, and population biology. Biochemistry examines macromolecules - proteins, nucleic acids, carbohydrates, and lipids – and their building blocks, structures, functions, and interactions. Much of biochemistry is devoted to enzymes, proteins that catalyze chemical reactions, enzyme structures, mechanisms of action and their roles within cells. Biochemistry also studies small signaling molecules, coenzymes, inhibitors, vitamins, and hormones, which play roles in life processes. Biochemical experimentation, besides coopting classical chemistry methods, e.g., chromatography, adopted new techniques, e.g., X-ray diffraction, electron microscopy, NMR, radioisotopes, and developed sophisticated microbial genetic tools, e.g., auxotroph mutants and their revertants, fermentation, etc. More recently, biochemistry embraced the ‘big data’ omics systems. Initial biochemical studies have been exclusively analytic: dissecting, purifying, and examining individual components of a biological system; in the apt words of Efraim Racker (1913 –1991), “Don’t waste clean thinking on dirty enzymes.” Today, however, biochemistry is becoming more agglomerative and comprehensive, setting out to integrate and describe entirely particular biological systems. The ‘big data’ metabolomics can define the complement of small molecules, e.g., in a soil or biofilm sample; proteomics can distinguish all the comprising proteins, e.g., serum; metagenomics can identify all the genes in a complex environment, e.g., the bovine rumen. This Biochemistry Series will address the current research on biomolecules and the emerging trends with great promise.",coverUrl:"https://cdn.intechopen.com/series/covers/11.jpg",latestPublicationDate:"June 29th, 2022",hasOnlineFirst:!0,numberOfPublishedBooks:32,editor:{id:"31610",title:"Dr.",name:"Miroslav",middleName:null,surname:"Blumenberg",slug:"miroslav-blumenberg",fullName:"Miroslav Blumenberg",profilePictureURL:"https://mts.intechopen.com/storage/users/31610/images/system/31610.jpg",biography:"Miroslav Blumenberg, Ph.D., was born in Subotica and received his BSc in Belgrade, Yugoslavia. He completed his Ph.D. at MIT in Organic Chemistry; he followed up his Ph.D. with two postdoctoral study periods at Stanford University. Since 1983, he has been a faculty member of the RO Perelman Department of Dermatology, NYU School of Medicine, where he is codirector of a training grant in cutaneous biology. Dr. Blumenberg’s research is focused on the epidermis, expression of keratin genes, transcription profiling, keratinocyte differentiation, inflammatory diseases and cancers, and most recently the effects of the microbiome on the skin. He has published more than 100 peer-reviewed research articles and graduated numerous Ph.D. and postdoctoral students.",institutionString:null,institution:{name:"New York University Langone Medical Center",institutionURL:null,country:{name:"United States of America"}}},editorTwo:null,editorThree:null},subseries:{paginationCount:4,paginationItems:[{id:"14",title:"Cell and Molecular Biology",coverUrl:"https://cdn.intechopen.com/series_topics/covers/14.jpg",isOpenForSubmission:!0,editor:{id:"165627",title:"Dr.",name:"Rosa María",middleName:null,surname:"Martínez-Espinosa",slug:"rosa-maria-martinez-espinosa",fullName:"Rosa María Martínez-Espinosa",profilePictureURL:"https://mts.intechopen.com/storage/users/165627/images/system/165627.jpeg",biography:"Dr. Rosa María Martínez-Espinosa has been a Spanish Full Professor since 2020 (Biochemistry and Molecular Biology) and is currently Vice-President of International Relations and Cooperation development and leader of the research group 'Applied Biochemistry” (University of Alicante, Spain). Other positions she has held at the university include Vice-Dean of Master Programs, Vice-Dean of the Degree in Biology and Vice-Dean for Mobility and Enterprise and Engagement at the Faculty of Science (University of Alicante). She received her Bachelor in Biology in 1998 (University of Alicante) and her PhD in 2003 (Biochemistry, University of Alicante). She undertook post-doctoral research at the University of East Anglia (Norwich, U.K. 2004-2005; 2007-2008).\nHer multidisciplinary research focuses on investigating archaea and their potential applications in biotechnology. She has an H-index of 21. She has authored one patent and has published more than 70 indexed papers and around 60 book chapters.\nShe has contributed to more than 150 national and international meetings during the last 15 years. Her research interests include archaea metabolism, enzymes purification and characterization, gene regulation, carotenoids and bioplastics production, antioxidant\ncompounds, waste water treatments, and brines bioremediation.\nRosa María’s other roles include editorial board member for several journals related\nto biochemistry, reviewer for more than 60 journals (biochemistry, molecular biology, biotechnology, chemistry and microbiology) and president of several organizing committees in international meetings related to the N-cycle or respiratory processes.",institutionString:null,institution:{name:"University of Alicante",institutionURL:null,country:{name:"Spain"}}},editorTwo:null,editorThree:null},{id:"15",title:"Chemical Biology",coverUrl:"https://cdn.intechopen.com/series_topics/covers/15.jpg",isOpenForSubmission:!0,editor:{id:"441442",title:"Dr.",name:"Şükrü",middleName:null,surname:"Beydemir",slug:"sukru-beydemir",fullName:"Şükrü Beydemir",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y00003GsUoIQAV/Profile_Picture_1634557147521",biography:"Dr. Şükrü Beydemir obtained a BSc in Chemistry in 1995 from Yüzüncü Yıl University, MSc in Biochemistry in 1998, and PhD in Biochemistry in 2002 from Atatürk University, Turkey. He performed post-doctoral studies at Max-Planck Institute, Germany, and University of Florence, Italy in addition to making several scientific visits abroad. He currently works as a Full Professor of Biochemistry in the Faculty of Pharmacy, Anadolu University, Turkey. Dr. Beydemir has published over a hundred scientific papers spanning protein biochemistry, enzymology and medicinal chemistry, reviews, book chapters and presented several conferences to scientists worldwide. He has received numerous publication awards from various international scientific councils. He serves in the Editorial Board of several international journals. Dr. Beydemir is also Rector of Bilecik Şeyh Edebali University, Turkey.",institutionString:null,institution:{name:"Anadolu University",institutionURL:null,country:{name:"Turkey"}}},editorTwo:{id:"13652",title:"Prof.",name:"Deniz",middleName:null,surname:"Ekinci",slug:"deniz-ekinci",fullName:"Deniz Ekinci",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002aYLT1QAO/Profile_Picture_1634557223079",biography:"Dr. Deniz Ekinci obtained a BSc in Chemistry in 2004, MSc in Biochemistry in 2006, and PhD in Biochemistry in 2009 from Atatürk University, Turkey. He studied at Stetson University, USA, in 2007-2008 and at the Max Planck Institute of Molecular Cell Biology and Genetics, Germany, in 2009-2010. Dr. Ekinci currently works as a Full Professor of Biochemistry in the Faculty of Agriculture and is the Head of the Enzyme and Microbial Biotechnology Division, Ondokuz Mayıs University, Turkey. He is a member of the Turkish Biochemical Society, American Chemical Society, and German Genetics society. Dr. Ekinci published around ninety scientific papers, reviews and book chapters, and presented several conferences to scientists. He has received numerous publication awards from several scientific councils. Dr. Ekinci serves as the Editor in Chief of four international books and is involved in the Editorial Board of several international journals.",institutionString:null,institution:{name:"Ondokuz Mayıs University",institutionURL:null,country:{name:"Turkey"}}},editorThree:null},{id:"17",title:"Metabolism",coverUrl:"https://cdn.intechopen.com/series_topics/covers/17.jpg",isOpenForSubmission:!0,editor:{id:"138626",title:"Dr.",name:"Yannis",middleName:null,surname:"Karamanos",slug:"yannis-karamanos",fullName:"Yannis Karamanos",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002g6Jv2QAE/Profile_Picture_1629356660984",biography:"Yannis Karamanos, born in Greece in 1953, completed his pre-graduate studies at the Université Pierre et Marie Curie, Paris, then his Masters and Doctoral degree at the Université de Lille (1983). He was associate professor at the University of Limoges (1987) before becoming full professor of biochemistry at the Université d’Artois (1996). He worked on the structure-function relationships of glycoconjugates and his main project was the investigations on the biological roles of the de-N-glycosylation enzymes (Endo-N-acetyl-β-D-glucosaminidase and peptide-N4-(N-acetyl-β-glucosaminyl) asparagine amidase). From 2002 he contributes to the understanding of the Blood-brain barrier functioning using proteomics approaches. He has published more than 70 papers. His teaching areas are energy metabolism and regulation, integration and organ specialization and metabolic adaptation.",institutionString:null,institution:{name:"Artois University",institutionURL:null,country:{name:"France"}}},editorTwo:null,editorThree:null},{id:"18",title:"Proteomics",coverUrl:"https://cdn.intechopen.com/series_topics/covers/18.jpg",isOpenForSubmission:!0,editor:{id:"200689",title:"Prof.",name:"Paolo",middleName:null,surname:"Iadarola",slug:"paolo-iadarola",fullName:"Paolo Iadarola",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bSCl8QAG/Profile_Picture_1623568118342",biography:"Paolo Iadarola graduated with a degree in Chemistry from the University of Pavia (Italy) in July 1972. He then worked as an Assistant Professor at the Faculty of Science of the same University until 1984. In 1985, Prof. Iadarola became Associate Professor at the Department of Biology and Biotechnologies of the University of Pavia and retired in October 2017. Since then, he has been working as an Adjunct Professor in the same Department at the University of Pavia. His research activity during the first years was primarily focused on the purification and structural characterization of enzymes from animal and plant sources. During this period, Prof. Iadarola familiarized himself with the conventional techniques used in column chromatography, spectrophotometry, manual Edman degradation, and electrophoresis). Since 1995, he has been working on: i) the determination in biological fluids (serum, urine, bronchoalveolar lavage, sputum) of proteolytic activities involved in the degradation processes of connective tissue matrix, and ii) on the identification of biological markers of lung diseases. In this context, he has developed and validated new methodologies (e.g., Capillary Electrophoresis coupled to Laser-Induced Fluorescence, CE-LIF) whose application enabled him to determine both the amounts of biochemical markers (Desmosines) in urine/serum of patients affected by Chronic Obstructive Pulmonary Disease (COPD) and the activity of proteolytic enzymes (Human Neutrophil Elastase, Cathepsin G, Pseudomonas aeruginosa elastase) in sputa of these patients. More recently, Prof. Iadarola was involved in developing techniques such as two-dimensional electrophoresis coupled to liquid chromatography/mass spectrometry (2DE-LC/MS) for the proteomic analysis of biological fluids aimed at the identification of potential biomarkers of different lung diseases. He is the author of about 150 publications (According to Scopus: H-Index: 23; Total citations: 1568- According to WOS: H-Index: 20; Total Citations: 1296) of peer-reviewed international journals. He is a Consultant Reviewer for several journals, including the Journal of Chromatography A, Journal of Chromatography B, Plos ONE, Proteomes, International Journal of Molecular Science, Biotech, Electrophoresis, and others. He is also Associate Editor of Biotech.",institutionString:null,institution:{name:"University of Pavia",institutionURL:null,country:{name:"Italy"}}},editorTwo:{id:"201414",title:"Dr.",name:"Simona",middleName:null,surname:"Viglio",slug:"simona-viglio",fullName:"Simona Viglio",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRKDHQA4/Profile_Picture_1630402531487",biography:"Simona Viglio is an Associate Professor of Biochemistry at the Department of Molecular Medicine at the University of Pavia. She has been working since 1995 on the determination of proteolytic enzymes involved in the degradation process of connective tissue matrix and on the identification of biological markers of lung diseases. She gained considerable experience in developing and validating new methodologies whose applications allowed her to determine both the amount of biomarkers (Desmosine and Isodesmosine) in the urine of patients affected by COPD, and the activity of proteolytic enzymes (HNE, Cathepsin G, Pseudomonas aeruginosa elastase) in the sputa of these patients. Simona Viglio was also involved in research dealing with the supplementation of amino acids in patients with brain injury and chronic heart failure. She is presently engaged in the development of 2-DE and LC-MS techniques for the study of proteomics in biological fluids. The aim of this research is the identification of potential biomarkers of lung diseases. She is an author of about 90 publications (According to Scopus: H-Index: 23; According to WOS: H-Index: 20) on peer-reviewed journals, a member of the “Società Italiana di Biochimica e Biologia Molecolare,“ and a Consultant Reviewer for International Journal of Molecular Science, Journal of Chromatography A, COPD, Plos ONE and Nutritional Neuroscience.",institutionString:null,institution:{name:"University of Pavia",institutionURL:null,country:{name:"Italy"}}},editorThree:null}]},overviewPageOFChapters:{paginationCount:36,paginationItems:[{id:"82195",title:"Endoplasmic Reticulum: A Hub in Lipid Homeostasis",doi:"10.5772/intechopen.105450",signatures:"Raúl Ventura and María Isabel Hernández-Alvarez",slug:"endoplasmic-reticulum-a-hub-in-lipid-homeostasis",totalDownloads:2,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Updates on Endoplasmic Reticulum",coverURL:"https://cdn.intechopen.com/books/images_new/11674.jpg",subseries:{id:"14",title:"Cell and Molecular Biology"}}},{id:"82409",title:"Purinergic Signaling in Covid-19 Disease",doi:"10.5772/intechopen.105008",signatures:"Hailian Shen",slug:"purinergic-signaling-in-covid-19-disease",totalDownloads:3,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Purinergic System",coverURL:"https://cdn.intechopen.com/books/images_new/10801.jpg",subseries:{id:"17",title:"Metabolism"}}},{id:"82374",title:"The Potential of the Purinergic System as a Therapeutic Target of Natural Compounds in Cutaneous Melanoma",doi:"10.5772/intechopen.105457",signatures:"Gilnei Bruno da Silva, Daiane Manica, Marcelo Moreno and Margarete Dulce Bagatini",slug:"the-potential-of-the-purinergic-system-as-a-therapeutic-target-of-natural-compounds-in-cutaneous-mel",totalDownloads:9,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Purinergic System",coverURL:"https://cdn.intechopen.com/books/images_new/10801.jpg",subseries:{id:"17",title:"Metabolism"}}},{id:"82103",title:"The Role of Endoplasmic Reticulum Stress and Its Regulation in the Progression of Neurological and Infectious Diseases",doi:"10.5772/intechopen.105543",signatures:"Mary Dover, Michael Kishek, Miranda Eddins, Naneeta Desar, Ketema Paul and Milan Fiala",slug:"the-role-of-endoplasmic-reticulum-stress-and-its-regulation-in-the-progression-of-neurological-and-i",totalDownloads:6,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Updates on Endoplasmic Reticulum",coverURL:"https://cdn.intechopen.com/books/images_new/11674.jpg",subseries:{id:"14",title:"Cell and Molecular Biology"}}}]},overviewPagePublishedBooks:{paginationCount:32,paginationItems:[{type:"book",id:"7006",title:"Biochemistry and Health Benefits of Fatty Acids",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7006.jpg",slug:"biochemistry-and-health-benefits-of-fatty-acids",publishedDate:"December 19th 2018",editedByType:"Edited by",bookSignature:"Viduranga Waisundara",hash:"c93a00abd68b5eba67e5e719f67fd20b",volumeInSeries:1,fullTitle:"Biochemistry and Health Benefits of Fatty Acids",editors:[{id:"194281",title:"Dr.",name:"Viduranga Y.",middleName:null,surname:"Waisundara",slug:"viduranga-y.-waisundara",fullName:"Viduranga Y. Waisundara",profilePictureURL:"https://mts.intechopen.com/storage/users/194281/images/system/194281.jpg",biography:"Dr. Viduranga Waisundara obtained her Ph.D. in Food Science\nand Technology from the Department of Chemistry, National\nUniversity of Singapore, in 2010. She was a lecturer at Temasek Polytechnic, Singapore from July 2009 to March 2013.\nShe relocated to her motherland of Sri Lanka and spearheaded the Functional Food Product Development Project at the\nNational Institute of Fundamental Studies from April 2013 to\nOctober 2016. She was a senior lecturer on a temporary basis at the Department of\nFood Technology, Faculty of Technology, Rajarata University of Sri Lanka. She is\ncurrently Deputy Principal of the Australian College of Business and Technology –\nKandy Campus, Sri Lanka. She is also the Global Harmonization Initiative (GHI)",institutionString:"Australian College of Business & Technology",institution:null}]},{type:"book",id:"6820",title:"Keratin",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/6820.jpg",slug:"keratin",publishedDate:"December 19th 2018",editedByType:"Edited by",bookSignature:"Miroslav Blumenberg",hash:"6def75cd4b6b5324a02b6dc0359896d0",volumeInSeries:2,fullTitle:"Keratin",editors:[{id:"31610",title:"Dr.",name:"Miroslav",middleName:null,surname:"Blumenberg",slug:"miroslav-blumenberg",fullName:"Miroslav Blumenberg",profilePictureURL:"https://mts.intechopen.com/storage/users/31610/images/system/31610.jpg",biography:"Miroslav Blumenberg, Ph.D., was born in Subotica and received his BSc in Belgrade, Yugoslavia. He completed his Ph.D. at MIT in Organic Chemistry; he followed up his Ph.D. with two postdoctoral study periods at Stanford University. Since 1983, he has been a faculty member of the RO Perelman Department of Dermatology, NYU School of Medicine, where he is codirector of a training grant in cutaneous biology. Dr. Blumenberg’s research is focused on the epidermis, expression of keratin genes, transcription profiling, keratinocyte differentiation, inflammatory diseases and cancers, and most recently the effects of the microbiome on the skin. He has published more than 100 peer-reviewed research articles and graduated numerous Ph.D. and postdoctoral students.",institutionString:null,institution:{name:"New York University Langone Medical Center",institutionURL:null,country:{name:"United States of America"}}}]},{type:"book",id:"7978",title:"Vitamin A",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7978.jpg",slug:"vitamin-a",publishedDate:"May 15th 2019",editedByType:"Edited by",bookSignature:"Leila Queiroz Zepka, Veridiana Vera de Rosso and Eduardo Jacob-Lopes",hash:"dad04a658ab9e3d851d23705980a688b",volumeInSeries:3,fullTitle:"Vitamin A",editors:[{id:"261969",title:"Dr.",name:"Leila",middleName:null,surname:"Queiroz Zepka",slug:"leila-queiroz-zepka",fullName:"Leila Queiroz Zepka",profilePictureURL:"https://mts.intechopen.com/storage/users/261969/images/system/261969.png",biography:"Prof. Dr. Leila Queiroz Zepka is currently an associate professor in the Department of Food Technology and Science, Federal University of Santa Maria, Brazil. She has more than fifteen years of teaching and research experience. She has published more than 550 scientific publications/communications, including 15 books, 50 book chapters, 100 original research papers, 380 research communications in national and international conferences, and 12 patents. She is a member of the editorial board of five journals and acts as a reviewer for several national and international journals. Her research interests include microalgal biotechnology with an emphasis on microalgae-based products.",institutionString:"Universidade Federal de Santa Maria",institution:{name:"Universidade Federal de Santa Maria",institutionURL:null,country:{name:"Brazil"}}}]},{type:"book",id:"7953",title:"Bioluminescence",subtitle:"Analytical Applications and Basic Biology",coverURL:"https://cdn.intechopen.com/books/images_new/7953.jpg",slug:"bioluminescence-analytical-applications-and-basic-biology",publishedDate:"September 25th 2019",editedByType:"Edited by",bookSignature:"Hirobumi Suzuki",hash:"3a8efa00b71abea11bf01973dc589979",volumeInSeries:4,fullTitle:"Bioluminescence - Analytical Applications and Basic Biology",editors:[{id:"185746",title:"Dr.",name:"Hirobumi",middleName:null,surname:"Suzuki",slug:"hirobumi-suzuki",fullName:"Hirobumi Suzuki",profilePictureURL:"https://mts.intechopen.com/storage/users/185746/images/system/185746.png",biography:"Dr. Hirobumi Suzuki received his Ph.D. in 1997 from Tokyo Metropolitan University, Japan, where he studied firefly phylogeny and the evolution of mating systems. He is especially interested in the genetic differentiation pattern and speciation process that correlate to the flashing pattern and mating behavior of some fireflies in Japan. He then worked for Olympus Corporation, a Japanese manufacturer of optics and imaging products, where he was involved in the development of luminescence technology and produced a bioluminescence microscope that is currently being used for gene expression analysis in chronobiology, neurobiology, and developmental biology. Dr. Suzuki currently serves as a visiting researcher at Kogakuin University, Japan, and also a vice president of the Japan Firefly Society.",institutionString:"Kogakuin University",institution:null}]}]},openForSubmissionBooks:{paginationCount:3,paginationItems:[{id:"11677",title:"New Insights in Mammalian Endocrinology",coverURL:"https://cdn.intechopen.com/books/images_new/11677.jpg",hash:"c59dd0f87bbf829ca091c485f4cc4e68",secondStepPassed:!0,currentStepOfPublishingProcess:3,submissionDeadline:"May 5th 2022",isOpenForSubmission:!0,editors:[{id:"321396",title:"Prof.",name:"Muhammad Subhan",surname:"Qureshi",slug:"muhammad-subhan-qureshi",fullName:"Muhammad Subhan Qureshi"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{id:"11676",title:"Recent Advances in Homeostasis",coverURL:"https://cdn.intechopen.com/books/images_new/11676.jpg",hash:"63eb775115bf2d6d88530b234a1cc4c2",secondStepPassed:!1,currentStepOfPublishingProcess:2,submissionDeadline:"July 15th 2022",isOpenForSubmission:!0,editors:[{id:"203015",title:"Dr.",name:"Gaffar",surname:"Zaman",slug:"gaffar-zaman",fullName:"Gaffar Zaman"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{id:"12213",title:"New Advances in Photosynthesis",coverURL:"https://cdn.intechopen.com/books/images_new/12213.jpg",hash:"2eece9ed4f67de4eb73da424321fc455",secondStepPassed:!1,currentStepOfPublishingProcess:2,submissionDeadline:"July 15th 2022",isOpenForSubmission:!0,editors:[{id:"224171",title:"Prof.",name:"Josphert N.",surname:"Kimatu",slug:"josphert-n.-kimatu",fullName:"Josphert N. Kimatu"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},onlineFirstChapters:{paginationCount:15,paginationItems:[{id:"82427",title:"Our Globalization Era among Success, Obstacles and Doubts",doi:"10.5772/intechopen.105545",signatures:"Arnaldo Canziani, Annalisa Baldissera and Ahmad Kahwaji",slug:"our-globalization-era-among-success-obstacles-and-doubts",totalDownloads:7,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Globalization and Sustainability - Recent Advances, New Perspectives and Emerging Issues",coverURL:"https://cdn.intechopen.com/books/images_new/11476.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"82248",title:"Sustainability and Excellence: Pillars for Business Survival",doi:"10.5772/intechopen.105420",signatures:"Irina Severin, Maria Cristina Dijmarescu and Mihai Caramihai",slug:"sustainability-and-excellence-pillars-for-business-survival",totalDownloads:5,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Globalization and Sustainability - Recent Advances, New Perspectives and Emerging Issues",coverURL:"https://cdn.intechopen.com/books/images_new/11476.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"82124",title:"Assessment of Diversity, Growth Characteristics and Aboveground Biomass of Tree Species in Selected Urban Green Areas of Osogbo, Osun State",doi:"10.5772/intechopen.104982",signatures:"Omolara Aremu, Olusola O. Adetoro and Olusegun Awotoye",slug:"assessment-of-diversity-growth-characteristics-and-aboveground-biomass-of-tree-species-in-selected-u",totalDownloads:5,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Forest Degradation Under Global Change",coverURL:"https://cdn.intechopen.com/books/images_new/11457.jpg",subseries:{id:"94",title:"Climate Change and Environmental Sustainability"}}},{id:"81975",title:"Self-Sustained Communities: Food Security in Times of Crisis",doi:"10.5772/intechopen.104425",signatures:"Kriengsak Chareonwongsak",slug:"self-sustained-communities-food-security-in-times-of-crisis",totalDownloads:11,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Food Systems Resilience",coverURL:"https://cdn.intechopen.com/books/images_new/10897.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"81920",title:"Rethinking an Approach for Sustainable Globalization",doi:"10.5772/intechopen.105141",signatures:"Parakram Pyakurel",slug:"rethinking-an-approach-for-sustainable-globalization",totalDownloads:22,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Globalization and Sustainability - Recent Advances, New Perspectives and Emerging Issues",coverURL:"https://cdn.intechopen.com/books/images_new/11476.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"81297",title:"Legumes Cropping and Nitrogen Fixation under Mediterranean Climate: The Case of Montado/Dehesa System",doi:"10.5772/intechopen.104473",signatures:"Fernando Teixeira",slug:"legumes-cropping-and-nitrogen-fixation-under-mediterranean-climate-the-case-of-montado-dehesa-system",totalDownloads:24,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Food Systems Resilience",coverURL:"https://cdn.intechopen.com/books/images_new/10897.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"81493",title:"Rust Disease Classification Using Deep Learning Based Algorithm: The Case of Wheat",doi:"10.5772/intechopen.104426",signatures:"Shivani Sood, Harjeet Singh and Suruchi Jindal",slug:"rust-disease-classification-using-deep-learning-based-algorithm-the-case-of-wheat",totalDownloads:75,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Food Systems Resilience",coverURL:"https://cdn.intechopen.com/books/images_new/10897.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"81428",title:"Observatory of Sustainable Development in Postgraduate Study Programs in Baja California",doi:"10.5772/intechopen.104641",signatures:"Rodolfo Martinez-Gutierrez, Maria Marcela Solis-Quinteros, Maria Esther Ibarra-Estrada and Angel Ernesto Jimenez-Bernardino",slug:"observatory-of-sustainable-development-in-postgraduate-study-programs-in-baja-california",totalDownloads:10,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Globalization and Sustainability - Recent Advances, New Perspectives and Emerging Issues",coverURL:"https://cdn.intechopen.com/books/images_new/11476.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"81235",title:"Global Food System Transformation for Resilience",doi:"10.5772/intechopen.102749",signatures:"Jasper Okoro Godwin Elechi, Ikechukwu U. Nwiyi and Cornelius Smah Adamu",slug:"global-food-system-transformation-for-resilience",totalDownloads:65,totalCrossrefCites:1,totalDimensionsCites:0,authors:null,book:{title:"Food Systems Resilience",coverURL:"https://cdn.intechopen.com/books/images_new/10897.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}},{id:"80749",title:"Analysis of the Nexus between Coping Strategies and Resilience to Food Insecurity Shocks: The Case of Rural Households in Boricha Woreda, Sidama National Regional State, Ethiopia",doi:"10.5772/intechopen.102613",signatures:"Adane Atara Debessa, Degefa Tolossa and Berhanu Denu",slug:"analysis-of-the-nexus-between-coping-strategies-and-resilience-to-food-insecurity-shocks-the-case-of",totalDownloads:67,totalCrossrefCites:0,totalDimensionsCites:1,authors:null,book:{title:"Food Systems Resilience",coverURL:"https://cdn.intechopen.com/books/images_new/10897.jpg",subseries:{id:"91",title:"Sustainable Economy and Fair Society"}}}]},subseriesFiltersForOFChapters:[{caption:"Climate Change and Environmental Sustainability",value:94,count:1,group:"subseries"},{caption:"Sustainable Economy and Fair Society",value:91,count:14,group:"subseries"}],publishedBooks:{paginationCount:13,paginationItems:[{type:"book",id:"7102",title:"Pneumonia",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7102.jpg",slug:"pneumonia",publishedDate:"May 11th 2022",editedByType:"Edited by",bookSignature:"Nima Rezaei",hash:"9fd70142814192dcec58a176749f1b60",volumeInSeries:13,fullTitle:"Pneumonia",editors:[{id:"116250",title:"Dr.",name:"Nima",middleName:null,surname:"Rezaei",slug:"nima-rezaei",fullName:"Nima Rezaei",profilePictureURL:"https://mts.intechopen.com/storage/users/116250/images/system/116250.jpg",institutionString:"Tehran University of Medical Sciences",institution:{name:"Tehran University of Medical Sciences",institutionURL:null,country:{name:"Iran"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9615",title:"Chikungunya Virus",subtitle:"A Growing Global Public Health Threat",coverURL:"https://cdn.intechopen.com/books/images_new/9615.jpg",slug:"chikungunya-virus-a-growing-global-public-health-threat",publishedDate:"February 9th 2022",editedByType:"Edited by",bookSignature:"Jean Engohang-Ndong",hash:"c960d94a63867dd12a8ab15176a3ff06",volumeInSeries:12,fullTitle:"Chikungunya Virus - A Growing Global Public Health Threat",editors:[{id:"180733",title:"Dr.",name:"Jean",middleName:null,surname:"Engohang-Ndong",slug:"jean-engohang-ndong",fullName:"Jean Engohang-Ndong",profilePictureURL:"https://mts.intechopen.com/storage/users/180733/images/system/180733.png",institutionString:"Kent State University",institution:{name:"Kent State University",institutionURL:null,country:{name:"United States of America"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9619",title:"Epstein-Barr Virus",subtitle:"New Trends",coverURL:"https://cdn.intechopen.com/books/images_new/9619.jpg",slug:"epstein-barr-virus-new-trends",publishedDate:"December 22nd 2021",editedByType:"Edited by",bookSignature:"Emmanuel Drouet",hash:"a2128c53becb6064589570cbe8d976f8",volumeInSeries:11,fullTitle:"Epstein-Barr Virus - New Trends",editors:[{id:"188773",title:"Prof.",name:"Emmanuel",middleName:null,surname:"Drouet",slug:"emmanuel-drouet",fullName:"Emmanuel Drouet",profilePictureURL:"https://mts.intechopen.com/storage/users/188773/images/system/188773.png",institutionString:null,institution:{name:"Grenoble Alpes University",institutionURL:null,country:{name:"France"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9525",title:"Insights Into Drug Resistance in Staphylococcus aureus",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/9525.jpg",slug:"insights-into-drug-resistance-in-staphylococcus-aureus",publishedDate:"December 8th 2021",editedByType:"Edited by",bookSignature:"Amjad Aqib",hash:"98bb6c1ddb067da67185c272f81c0a27",volumeInSeries:10,fullTitle:"Insights Into Drug Resistance in Staphylococcus aureus",editors:[{id:"229220",title:"Dr.",name:"Amjad",middleName:"Islam",surname:"Aqib",slug:"amjad-aqib",fullName:"Amjad Aqib",profilePictureURL:"https://mts.intechopen.com/storage/users/229220/images/system/229220.png",institutionString:"Cholistan University of Veterinary and Animal Sciences",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9614",title:"Advances in Candida albicans",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/9614.jpg",slug:"advances-in-candida-albicans",publishedDate:"November 17th 2021",editedByType:"Edited by",bookSignature:"Xinhui Wang",hash:"31d6882518ca749b12715266eed0a018",volumeInSeries:9,fullTitle:"Advances in Candida albicans",editors:[{id:"296531",title:"Dr.",name:"Xinhui",middleName:null,surname:"Wang",slug:"xinhui-wang",fullName:"Xinhui Wang",profilePictureURL:"https://mts.intechopen.com/storage/users/296531/images/system/296531.jpg",institutionString:"Qinghai Normal University",institution:{name:"University of Luxembourg",institutionURL:null,country:{name:"Luxembourg"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9528",title:"Current Topics and Emerging Issues in Malaria Elimination",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/9528.jpg",slug:"current-topics-and-emerging-issues-in-malaria-elimination",publishedDate:"July 21st 2021",editedByType:"Edited by",bookSignature:"Alfonso J. Rodriguez-Morales",hash:"7f178329cc42e691efe226b32f14e2ea",volumeInSeries:8,fullTitle:"Current Topics and Emerging Issues in Malaria Elimination",editors:[{id:"131400",title:"Prof.",name:"Alfonso J.",middleName:null,surname:"Rodriguez-Morales",slug:"alfonso-j.-rodriguez-morales",fullName:"Alfonso J. Rodriguez-Morales",profilePictureURL:"https://mts.intechopen.com/storage/users/131400/images/system/131400.png",institutionString:"Institución Universitaria Visión de las Américas, Colombia",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"9613",title:"Dengue Fever in a One Health Perspective",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/9613.jpg",slug:"dengue-fever-in-a-one-health-perspective",publishedDate:"October 28th 2020",editedByType:"Edited by",bookSignature:"Márcia Aparecida Sperança",hash:"77ecce8195c11092230b4156df6d83ff",volumeInSeries:7,fullTitle:"Dengue Fever in a One Health Perspective",editors:[{id:"176579",title:"Dr.",name:"Márcia Aparecida",middleName:null,surname:"Sperança",slug:"marcia-aparecida-speranca",fullName:"Márcia Aparecida Sperança",profilePictureURL:"https://mts.intechopen.com/storage/users/176579/images/system/176579.jpg",institutionString:null,institution:{name:"Universidade Federal do ABC",institutionURL:null,country:{name:"Brazil"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"7981",title:"Overview on Echinococcosis",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7981.jpg",slug:"overview-on-echinococcosis",publishedDate:"April 22nd 2020",editedByType:"Edited by",bookSignature:"Fethi Derbel and Meriem Braiki",hash:"24dee9209f3fd6b7cd28f042da0076f0",volumeInSeries:6,fullTitle:"Overview on Echinococcosis",editors:[{id:"62900",title:"Prof.",name:"Fethi",middleName:null,surname:"Derbel",slug:"fethi-derbel",fullName:"Fethi Derbel",profilePictureURL:"https://mts.intechopen.com/storage/users/62900/images/system/62900.jpeg",institutionString:"Clinique les Oliviers",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"7887",title:"Hepatitis B and C",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7887.jpg",slug:"hepatitis-b-and-c",publishedDate:"April 8th 2020",editedByType:"Edited by",bookSignature:"Luis Rodrigo",hash:"8dd6dab483cf505d83caddaeaf497f2c",volumeInSeries:5,fullTitle:"Hepatitis B and C",editors:[{id:"73208",title:"Prof.",name:"Luis",middleName:null,surname:"Rodrigo",slug:"luis-rodrigo",fullName:"Luis Rodrigo",profilePictureURL:"https://mts.intechopen.com/storage/users/73208/images/system/73208.jpg",institutionString:"University of Oviedo",institution:{name:"University of Oviedo",institutionURL:null,country:{name:"Spain"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"7839",title:"Malaria",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7839.jpg",slug:"malaria",publishedDate:"December 11th 2019",editedByType:"Edited by",bookSignature:"Fyson H. Kasenga",hash:"91cde4582ead884cb0f355a19b67cd56",volumeInSeries:4,fullTitle:"Malaria",editors:[{id:"86725",title:"Dr.",name:"Fyson",middleName:"Hanania",surname:"Kasenga",slug:"fyson-kasenga",fullName:"Fyson Kasenga",profilePictureURL:"https://mts.intechopen.com/storage/users/86725/images/system/86725.jpg",institutionString:"Malawi Adventist University",institution:{name:"Malawi Adventist University",institutionURL:null,country:{name:"Malawi"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"7123",title:"Current Topics in Neglected Tropical Diseases",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7123.jpg",slug:"current-topics-in-neglected-tropical-diseases",publishedDate:"December 4th 2019",editedByType:"Edited by",bookSignature:"Alfonso J. Rodriguez-Morales",hash:"61c627da05b2ace83056d11357bdf361",volumeInSeries:3,fullTitle:"Current Topics in Neglected Tropical Diseases",editors:[{id:"131400",title:"Prof.",name:"Alfonso J.",middleName:null,surname:"Rodriguez-Morales",slug:"alfonso-j.-rodriguez-morales",fullName:"Alfonso J. Rodriguez-Morales",profilePictureURL:"https://mts.intechopen.com/storage/users/131400/images/system/131400.png",institutionString:"Institución Universitaria Visión de las Américas, Colombia",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"7064",title:"Current Perspectives in Human Papillomavirus",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7064.jpg",slug:"current-perspectives-in-human-papillomavirus",publishedDate:"May 2nd 2019",editedByType:"Edited by",bookSignature:"Shailendra K. Saxena",hash:"d92a4085627bab25ddc7942fbf44cf05",volumeInSeries:2,fullTitle:"Current Perspectives in Human Papillomavirus",editors:[{id:"158026",title:"Prof.",name:"Shailendra K.",middleName:null,surname:"Saxena",slug:"shailendra-k.-saxena",fullName:"Shailendra K. Saxena",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRET3QAO/Profile_Picture_2022-05-10T10:10:26.jpeg",institutionString:"King George's Medical University",institution:{name:"King George's Medical University",institutionURL:null,country:{name:"India"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},subseriesFiltersForPublishedBooks:[{group:"subseries",caption:"Bacterial Infectious Diseases",value:3,count:2},{group:"subseries",caption:"Parasitic Infectious Diseases",value:5,count:4},{group:"subseries",caption:"Viral Infectious Diseases",value:6,count:7}],publicationYearFilters:[{group:"publicationYear",caption:"2022",value:2022,count:2},{group:"publicationYear",caption:"2021",value:2021,count:4},{group:"publicationYear",caption:"2020",value:2020,count:3},{group:"publicationYear",caption:"2019",value:2019,count:3},{group:"publicationYear",caption:"2018",value:2018,count:1}],authors:{paginationCount:229,paginationItems:[{id:"318170",title:"Dr.",name:"Aneesa",middleName:null,surname:"Moolla",slug:"aneesa-moolla",fullName:"Aneesa Moolla",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/318170/images/system/318170.png",biography:"Dr. Aneesa Moolla has extensive experience in the diverse fields of health care having previously worked in dental private practice, at the Red Cross Flying Doctors association, and in healthcare corporate settings. She is now a lecturer at the University of Witwatersrand, South Africa, and a principal researcher at the Health Economics and Epidemiology Research Office (HE2RO), South Africa. Dr. Moolla holds a Ph.D. in Psychology with her research being focused on mental health and resilience. In her professional work capacity, her research has further expanded into the fields of early childhood development, mental health, the HIV and TB care cascades, as well as COVID. She is also a UNESCO-trained International Bioethics Facilitator.",institutionString:"University of the Witwatersrand",institution:{name:"University of the Witwatersrand",country:{name:"South Africa"}}},{id:"419588",title:"Ph.D.",name:"Sergio",middleName:"Alexandre",surname:"Gehrke",slug:"sergio-gehrke",fullName:"Sergio Gehrke",position:null,profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y000038WgMKQA0/Profile_Picture_2022-06-02T11:44:20.jpg",biography:"Dr. Sergio Alexandre Gehrke is a doctorate holder in two fields. The first is a Ph.D. in Cellular and Molecular Biology from the Pontificia Catholic University, Porto Alegre, Brazil, in 2010 and the other is an International Ph.D. in Bioengineering from the Universidad Miguel Hernandez, Elche/Alicante, Spain, obtained in 2020. In 2018, he completed a postdoctoral fellowship in Materials Engineering in the NUCLEMAT of the Pontificia Catholic University, Porto Alegre, Brazil. He is currently the Director of the Postgraduate Program in Implantology of the Bioface/UCAM/PgO (Montevideo, Uruguay), Director of the Cathedra of Biotechnology of the Catholic University of Murcia (Murcia, Spain), an Extraordinary Full Professor of the Catholic University of Murcia (Murcia, Spain) as well as the Director of the private center of research Biotecnos – Technology and Science (Montevideo, Uruguay). Applied biomaterials, cellular and molecular biology, and dental implants are among his research interests. He has published several original papers in renowned journals. In addition, he is also a Collaborating Professor in several Postgraduate programs at different universities all over the world.",institutionString:null,institution:{name:"Universidad Católica San Antonio de Murcia",country:{name:"Spain"}}},{id:"342152",title:"Dr.",name:"Santo",middleName:null,surname:"Grace Umesh",slug:"santo-grace-umesh",fullName:"Santo Grace Umesh",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/342152/images/16311_n.jpg",biography:null,institutionString:null,institution:{name:"SRM Dental College",country:{name:"India"}}},{id:"333647",title:"Dr.",name:"Shreya",middleName:null,surname:"Kishore",slug:"shreya-kishore",fullName:"Shreya Kishore",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/333647/images/14701_n.jpg",biography:"Dr. Shreya Kishore completed her Bachelor in Dental Surgery in Chettinad Dental College and Research Institute, Chennai, and her Master of Dental Surgery (Orthodontics) in Saveetha Dental College, Chennai. She is also Invisalign certified. She’s working as a Senior Lecturer in the Department of Orthodontics, SRM Dental College since November 2019. She is actively involved in teaching orthodontics to the undergraduates and the postgraduates. Her clinical research topics include new orthodontic brackets, fixed appliances and TADs. She’s published 4 articles in well renowned indexed journals and has a published patency of her own. Her private practice is currently limited to orthodontics and works as a consultant in various clinics.",institutionString:null,institution:{name:"SRM Dental College",country:{name:"India"}}},{id:"323731",title:"Prof.",name:"Deepak M.",middleName:"Macchindra",surname:"Vikhe",slug:"deepak-m.-vikhe",fullName:"Deepak M. Vikhe",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/323731/images/13613_n.jpg",biography:"Dr Deepak M.Vikhe .\n\n\t\n\tDr Deepak M.Vikhe , completed his Masters & PhD in Prosthodontics from Rural Dental College, Loni securing third rank in the Pravara Institute of Medical Sciences Deemed University. He was awarded Dr.G.C.DAS Memorial Award for Research on Implants at 39th IPS conference Dubai (U A E).He has two patents under his name. He has received Dr.Saraswati medal award for best research for implant study in 2017.He has received Fully funded scholarship to Spain ,university of Santiago de Compostela. He has completed fellowship in Implantlogy from Noble Biocare. \nHe has attended various conferences and CDE programmes and has national publications to his credit. His field of interest is in Implant supported prosthesis. Presently he is working as a associate professor in the Dept of Prosthodontics, Rural Dental College, Loni and maintains a successful private practice specialising in Implantology at Rahata.\n\nEmail: drdeepak_mvikhe@yahoo.com..................",institutionString:null,institution:{name:"Pravara Institute of Medical Sciences",country:{name:"India"}}},{id:"204110",title:"Dr.",name:"Ahmed A.",middleName:null,surname:"Madfa",slug:"ahmed-a.-madfa",fullName:"Ahmed A. Madfa",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/204110/images/system/204110.jpg",biography:"Dr. Madfa is currently Associate Professor of Endodontics at Thamar University and a visiting lecturer at Sana'a University and University of Sciences and Technology. He has more than 6 years of experience in teaching. His research interests include root canal morphology, functionally graded concept, dental biomaterials, epidemiology and dental education, biomimetic restoration, finite element analysis and endodontic regeneration. Dr. Madfa has numerous international publications, full articles, two patents, a book and a book chapter. Furthermore, he won 14 international scientific awards. Furthermore, he is involved in many academic activities ranging from editorial board member, reviewer for many international journals and postgraduate students' supervisor. Besides, I deliver many courses and training workshops at various scientific events. Dr. Madfa also regularly attends international conferences and holds administrative positions (Deputy Dean of the Faculty for Students’ & Academic Affairs and Deputy Head of Research Unit).",institutionString:"Thamar University",institution:null},{id:"210472",title:"Dr.",name:"Nermin",middleName:"Mohammed Ahmed",surname:"Yussif",slug:"nermin-yussif",fullName:"Nermin Yussif",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/210472/images/system/210472.jpg",biography:"Dr. Nermin Mohammed Ahmed Yussif is working at the Faculty of dentistry, University for October university for modern sciences and arts (MSA). Her areas of expertise include: periodontology, dental laserology, oral implantology, periodontal plastic surgeries, oral mesotherapy, nutrition, dental pharmacology. She is an editor and reviewer in numerous international journals.",institutionString:"MSA University",institution:null},{id:"204606",title:"Dr.",name:"Serdar",middleName:null,surname:"Gözler",slug:"serdar-gozler",fullName:"Serdar Gözler",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/204606/images/system/204606.jpeg",biography:"Dr. Serdar Gözler has completed his undergraduate studies at the Marmara University Faculty of Dentistry in 1978, followed by an assistantship in the Prosthesis Department of Dicle University Faculty of Dentistry. Starting his PhD work on non-resilient overdentures with Assoc. Prof. Hüsnü Yavuzyılmaz, he continued his studies with Prof. Dr. Gürbüz Öztürk of Istanbul University Faculty of Dentistry Department of Prosthodontics, this time on Gnatology. He attended training programs on occlusion, neurology, neurophysiology, EMG, radiology and biostatistics. In 1982, he presented his PhD thesis \\Gerber and Lauritzen Occlusion Analysis Techniques: Diagnosis Values,\\ at Istanbul University School of Dentistry, Department of Prosthodontics. As he was also working with Prof. Senih Çalıkkocaoğlu on The Physiology of Chewing at the same time, Gözler has written a chapter in Çalıkkocaoğlu\\'s book \\Complete Prostheses\\ entitled \\The Place of Neuromuscular Mechanism in Prosthetic Dentistry.\\ The book was published five times since by the Istanbul University Publications. Having presented in various conferences about occlusion analysis until 1998, Dr. Gözler has also decided to use the T-Scan II occlusion analysis method. Having been personally trained by Dr. Robert Kerstein on this method, Dr. Gözler has been lecturing on the T-Scan Occlusion Analysis Method in conferences both in Turkey and abroad. Dr. Gözler has various articles and presentations on Digital Occlusion Analysis methods. He is now Head of the TMD Clinic at Prosthodontic Department of Faculty of Dentistry , Istanbul Aydın University , Turkey.",institutionString:"Istanbul Aydin University",institution:{name:"Istanbul Aydın University",country:{name:"Turkey"}}},{id:"240870",title:"Ph.D.",name:"Alaa Eddin Omar",middleName:null,surname:"Al Ostwani",slug:"alaa-eddin-omar-al-ostwani",fullName:"Alaa Eddin Omar Al Ostwani",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/240870/images/system/240870.jpeg",biography:"Dr. Al Ostwani Alaa Eddin Omar received his Master in dentistry from Damascus University in 2010, and his Ph.D. in Pediatric Dentistry from Damascus University in 2014. Dr. Al Ostwani is an assistant professor and faculty member at IUST University since 2014. \nDuring his academic experience, he has received several awards including the scientific research award from the Union of Arab Universities, the Syrian gold medal and the international gold medal for invention and creativity. Dr. Al Ostwani is a Member of the International Association of Dental Traumatology and the Syrian Society for Research and Preventive Dentistry since 2017. He is also a Member of the Reviewer Board of International Journal of Dental Medicine (IJDM), and the Indian Journal of Conservative and Endodontics since 2016.",institutionString:"International University for Science and Technology.",institution:{name:"Islamic University of Science and Technology",country:{name:"India"}}},{id:"42847",title:"Dr.",name:"Belma",middleName:null,surname:"Işik Aslan",slug:"belma-isik-aslan",fullName:"Belma Işik Aslan",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/42847/images/system/42847.jpg",biography:"Dr. Belma IşIk Aslan was born in 1976 in Ankara-TURKEY. After graduating from TED Ankara College in 1994, she attended to Gazi University, Faculty of Dentistry in Ankara. She completed her PhD in orthodontic education at Gazi University between 1999-2005. Dr. Işık Aslan stayed at the Providence Hospital Craniofacial Institude and Reconstructive Surgery in Michigan, USA for three months as an observer. She worked as a specialist doctor at Gazi University, Dentistry Faculty, Department of Orthodontics between 2005-2014. She was appointed as associate professor in January, 2014 and as professor in 2021. Dr. Işık Aslan still works as an instructor at the same faculty. She has published a total of 35 articles, 10 book chapters, 39 conference proceedings both internationally and nationally. Also she was the academic editor of the international book 'Current Advances in Orthodontics'. She is a member of the Turkish Orthodontic Society and Turkish Cleft Lip and Palate Society. She is married and has 2 children. Her knowledge of English is at an advanced level.",institutionString:"Gazi University Dentistry Faculty Department of Orthodontics",institution:null},{id:"178412",title:"Associate Prof.",name:"Guhan",middleName:null,surname:"Dergin",slug:"guhan-dergin",fullName:"Guhan Dergin",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/178412/images/6954_n.jpg",biography:"Assoc. Prof. Dr. Gühan Dergin was born in 1973 in Izmit. He graduated from Marmara University Faculty of Dentistry in 1999. He completed his specialty of OMFS surgery in Marmara University Faculty of Dentistry and obtained his PhD degree in 2006. In 2005, he was invited as a visiting doctor in the Oral and Maxillofacial Surgery Department of the University of North Carolina, USA, where he went on a scholarship. Dr. Dergin still continues his academic career as an associate professor in Marmara University Faculty of Dentistry. He has many articles in international and national scientific journals and chapters in books.",institutionString:null,institution:{name:"Marmara University",country:{name:"Turkey"}}},{id:"178414",title:"Prof.",name:"Yusuf",middleName:null,surname:"Emes",slug:"yusuf-emes",fullName:"Yusuf Emes",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/178414/images/6953_n.jpg",biography:"Born in Istanbul in 1974, Dr. Emes graduated from Istanbul University Faculty of Dentistry in 1997 and completed his PhD degree in Istanbul University faculty of Dentistry Department of Oral and Maxillofacial Surgery in 2005. He has papers published in international and national scientific journals, including research articles on implantology, oroantral fistulas, odontogenic cysts, and temporomandibular disorders. Dr. Emes is currently working as a full-time academic staff in Istanbul University faculty of Dentistry Department of Oral and Maxillofacial Surgery.",institutionString:null,institution:{name:"Istanbul University",country:{name:"Turkey"}}},{id:"192229",title:"Ph.D.",name:"Ana Luiza",middleName:null,surname:"De Carvalho Felippini",slug:"ana-luiza-de-carvalho-felippini",fullName:"Ana Luiza De Carvalho Felippini",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/192229/images/system/192229.jpg",biography:null,institutionString:"University of São Paulo",institution:{name:"University of Sao Paulo",country:{name:"Brazil"}}},{id:"256851",title:"Prof.",name:"Ayşe",middleName:null,surname:"Gülşen",slug:"ayse-gulsen",fullName:"Ayşe Gülşen",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/256851/images/9696_n.jpg",biography:"Dr. Ayşe Gülşen graduated in 1990 from Faculty of Dentistry, University of Ankara and did a postgraduate program at University of Gazi. \nShe worked as an observer and research assistant in Craniofacial Surgery Departments in New York, Providence Hospital in Michigan and Chang Gung Memorial Hospital in Taiwan. \nShe works as Craniofacial Orthodontist in Department of Aesthetic, Plastic and Reconstructive Surgery, Faculty of Medicine, University of Gazi, Ankara Turkey since 2004.",institutionString:"Univeristy of Gazi",institution:null},{id:"255366",title:"Prof.",name:"Tosun",middleName:null,surname:"Tosun",slug:"tosun-tosun",fullName:"Tosun Tosun",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/255366/images/7347_n.jpg",biography:"Graduated at the Faculty of Dentistry, University of Istanbul, Turkey in 1989;\nVisitor Assistant at the University of Padua, Italy and Branemark Osseointegration Center of Treviso, Italy between 1993-94;\nPhD thesis on oral implantology in University of Istanbul and was awarded the academic title “Dr.med.dent.”, 1997;\nHe was awarded the academic title “Doç.Dr.” (Associated Professor) in 2003;\nProficiency in Botulinum Toxin Applications, Reading-UK in 2009;\nMastership, RWTH Certificate in Laser Therapy in Dentistry, AALZ-Aachen University, Germany 2009-11;\nMaster of Science (MSc) in Laser Dentistry, University of Genoa, Italy 2013-14.\n\nDr.Tosun worked as Research Assistant in the Department of Oral Implantology, Faculty of Dentistry, University of Istanbul between 1990-2002. \nHe worked part-time as Consultant surgeon in Harvard Medical International Hospitals and John Hopkins Medicine, Istanbul between years 2007-09.\u2028He was contract Professor in the Department of Surgical and Diagnostic Sciences (DI.S.C.), Medical School, University of Genova, Italy between years 2011-16. \nSince 2015 he is visiting Professor at Medical School, University of Plovdiv, Bulgaria. \nCurrently he is Associated Prof.Dr. at the Dental School, Oral Surgery Dept., Istanbul Aydin University and since 2003 he works in his own private clinic in Istanbul, Turkey.\u2028\nDr.Tosun is reviewer in journal ‘Laser in Medical Sciences’, reviewer in journal ‘Folia Medica\\', a Fellow of the International Team for Implantology, Clinical Lecturer of DGZI German Association of Oral Implantology, Expert Lecturer of Laser&Health Academy, Country Representative of World Federation for Laser Dentistry, member of European Federation of Periodontology, member of Academy of Laser Dentistry. Dr.Tosun presents papers in international and national congresses and has scientific publications in international and national journals. He speaks english, spanish, italian and french.",institutionString:null,institution:{name:"Istanbul Aydın University",country:{name:"Turkey"}}},{id:"171887",title:"Prof.",name:"Zühre",middleName:null,surname:"Akarslan",slug:"zuhre-akarslan",fullName:"Zühre Akarslan",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/171887/images/system/171887.jpg",biography:"Zühre Akarslan was born in 1977 in Cyprus. She graduated from Gazi University Faculty of Dentistry, Ankara, Turkey in 2000. \r\nLater she received her Ph.D. degree from the Oral Diagnosis and Radiology Department; which was recently renamed as Oral and Dentomaxillofacial Radiology, from the same university. \r\nShe is working as a full-time Associate Professor and is a lecturer and an academic researcher. \r\nHer expertise areas are dental caries, cancer, dental fear and anxiety, gag reflex in dentistry, oral medicine, and dentomaxillofacial radiology.",institutionString:"Gazi University",institution:{name:"Gazi University",country:{name:"Turkey"}}},{id:"256417",title:"Associate Prof.",name:"Sanaz",middleName:null,surname:"Sadry",slug:"sanaz-sadry",fullName:"Sanaz Sadry",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/256417/images/8106_n.jpg",biography:null,institutionString:null,institution:null},{id:"272237",title:"Dr.",name:"Pinar",middleName:"Kiymet",surname:"Karataban",slug:"pinar-karataban",fullName:"Pinar Karataban",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/272237/images/8911_n.png",biography:"Assist.Prof.Dr.Pınar Kıymet Karataban, DDS PhD \n\nDr.Pınar Kıymet Karataban was born in Istanbul in 1975. After her graduation from Marmara University Faculty of Dentistry in 1998 she started her PhD in Paediatric Dentistry focused on children with special needs; mainly children with Cerebral Palsy. She finished her pHD thesis entitled \\'Investigation of occlusion via cast analysis and evaluation of dental caries prevalance, periodontal status and muscle dysfunctions in children with cerebral palsy” in 2008. She got her Assist. Proffessor degree in Istanbul Aydın University Paediatric Dentistry Department in 2015-2018. ın 2019 she started her new career in Bahcesehir University, Istanbul as Head of Department of Pediatric Dentistry. In 2020 she was accepted to BAU International University, Batumi as Professor of Pediatric Dentistry. She’s a lecturer in the same university meanwhile working part-time in private practice in Ege Dental Studio (https://www.egedisklinigi.com/) a multidisciplinary dental clinic in Istanbul. Her main interests are paleodontology, ancient and contemporary dentistry, oral microbiology, cerebral palsy and special care dentistry. She has national and international publications, scientific reports and is a member of IAPO (International Association for Paleodontology), IADH (International Association of Disability and Oral Health) and EAPD (European Association of Pediatric Dentistry).",institutionString:null,institution:null},{id:"202198",title:"Dr.",name:"Buket",middleName:null,surname:"Aybar",slug:"buket-aybar",fullName:"Buket Aybar",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/202198/images/6955_n.jpg",biography:"Buket Aybar, DDS, PhD, was born in 1971. She graduated from Istanbul University, Faculty of Dentistry, in 1992 and completed her PhD degree on Oral and Maxillofacial Surgery in Istanbul University in 1997.\nDr. Aybar is currently a full-time professor in Istanbul University, Faculty of Dentistry Department of Oral and Maxillofacial Surgery. She has teaching responsibilities in graduate and postgraduate programs. Her clinical practice includes mainly dentoalveolar surgery.\nHer topics of interest are biomaterials science and cell culture studies. She has many articles in international and national scientific journals and chapters in books; she also has participated in several scientific projects supported by Istanbul University Research fund.",institutionString:null,institution:null},{id:"260116",title:"Dr.",name:"Mehmet",middleName:null,surname:"Yaltirik",slug:"mehmet-yaltirik",fullName:"Mehmet Yaltirik",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/260116/images/7413_n.jpg",biography:"Birth Date 25.09.1965\r\nBirth Place Adana- Turkey\r\nSex Male\r\nMarrial Status Bachelor\r\nDriving License Acquired\r\nMother Tongue Turkish\r\n\r\nAddress:\r\nWork:University of Istanbul,Faculty of Dentistry, Department of Oral Surgery and Oral Medicine 34093 Capa,Istanbul- TURKIYE",institutionString:null,institution:null},{id:"172009",title:"Dr.",name:"Fatma Deniz",middleName:null,surname:"Uzuner",slug:"fatma-deniz-uzuner",fullName:"Fatma Deniz Uzuner",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/172009/images/7122_n.jpg",biography:"Dr. Deniz Uzuner was born in 1969 in Kocaeli-TURKEY. After graduating from TED Ankara College in 1986, she attended the Hacettepe University, Faculty of Dentistry in Ankara. \nIn 1993 she attended the Gazi University, Faculty of Dentistry, Department of Orthodontics for her PhD education. After finishing the PhD education, she worked as orthodontist in Ankara Dental Hospital under the Turkish Government, Ministry of Health and in a special Orthodontic Clinic till 2011. Between 2011 and 2016, Dr. Deniz Uzuner worked as a specialist in the Department of Orthodontics, Faculty of Dentistry, Gazi University in Ankara/Turkey. In 2016, she was appointed associate professor. Dr. Deniz Uzuner has authored 23 Journal Papers, 3 Book Chapters and has had 39 oral/poster presentations. She is a member of the Turkish Orthodontic Society. Her knowledge of English is at an advanced level.",institutionString:null,institution:null},{id:"332914",title:"Dr.",name:"Muhammad Saad",middleName:null,surname:"Shaikh",slug:"muhammad-saad-shaikh",fullName:"Muhammad Saad Shaikh",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Jinnah Sindh Medical University",country:{name:"Pakistan"}}},{id:"315775",title:"Dr.",name:"Feng",middleName:null,surname:"Luo",slug:"feng-luo",fullName:"Feng Luo",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Sichuan University",country:{name:"China"}}},{id:"423519",title:"Dr.",name:"Sizakele",middleName:null,surname:"Ngwenya",slug:"sizakele-ngwenya",fullName:"Sizakele Ngwenya",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of the Witwatersrand",country:{name:"South Africa"}}},{id:"419270",title:"Dr.",name:"Ann",middleName:null,surname:"Chianchitlert",slug:"ann-chianchitlert",fullName:"Ann Chianchitlert",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Walailak University",country:{name:"Thailand"}}},{id:"419271",title:"Dr.",name:"Diane",middleName:null,surname:"Selvido",slug:"diane-selvido",fullName:"Diane Selvido",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Walailak University",country:{name:"Thailand"}}},{id:"419272",title:"Dr.",name:"Irin",middleName:null,surname:"Sirisoontorn",slug:"irin-sirisoontorn",fullName:"Irin Sirisoontorn",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Walailak University",country:{name:"Thailand"}}},{id:"355660",title:"Dr.",name:"Anitha",middleName:null,surname:"Mani",slug:"anitha-mani",fullName:"Anitha Mani",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"SRM Dental College",country:{name:"India"}}},{id:"355612",title:"Dr.",name:"Janani",middleName:null,surname:"Karthikeyan",slug:"janani-karthikeyan",fullName:"Janani Karthikeyan",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"SRM Dental College",country:{name:"India"}}},{id:"334400",title:"Dr.",name:"Suvetha",middleName:null,surname:"Siva",slug:"suvetha-siva",fullName:"Suvetha Siva",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"SRM Dental College",country:{name:"India"}}}]}},subseries:{item:{id:"13",type:"subseries",title:"Plant Physiology",keywords:"Plant Nutrition, Plant Hormone, Photosynthesis, Respiration, Plant Stress, Multi-omics, High-throughput Technology, Genome Editing",scope:"Plant Physiology explores fundamental processes in plants, and it includes subtopics such as plant nutrition, plant hormone, photosynthesis, respiration, and plant stress. In recent years, emerging technologies such as multi-omics, high-throughput technologies, and genome editing tools could assist plant physiologists in unraveling molecular mechanisms in specific critical pathways. The global picture of physiological processes in plants needs to be investigated continually to increase our knowledge, and the resulting technologies will benefit sustainable agriculture.",coverUrl:"https://cdn.intechopen.com/series_topics/covers/13.jpg",hasOnlineFirst:!0,hasPublishedBooks:!0,annualVolume:11409,editor:{id:"332229",title:"Prof.",name:"Jen-Tsung",middleName:null,surname:"Chen",slug:"jen-tsung-chen",fullName:"Jen-Tsung Chen",profilePictureURL:"https://mts.intechopen.com/storage/users/332229/images/system/332229.png",biography:"Dr. Jen-Tsung Chen is currently a professor at the National University of Kaohsiung, Taiwan. He teaches cell biology, genomics, proteomics, medicinal plant biotechnology, and plant tissue culture. Dr. Chen\\'s research interests include bioactive compounds, chromatography techniques, in vitro culture, medicinal plants, phytochemicals, and plant biotechnology. He has published more than ninety scientific papers and serves as an editorial board member for Plant Methods, Biomolecules, and International Journal of Molecular Sciences.",institutionString:"National University of Kaohsiung",institution:{name:"National University of Kaohsiung",institutionURL:null,country:{name:"Taiwan"}}},editorTwo:null,editorThree:null,series:{id:"10",title:"Physiology",doi:"10.5772/intechopen.72796",issn:"2631-8261"},editorialBoard:[{id:"313856",title:"Dr.",name:"Christophe",middleName:"F.E.",surname:"Hano",slug:"christophe-hano",fullName:"Christophe Hano",profilePictureURL:"https://mts.intechopen.com/storage/users/313856/images/system/313856.png",institutionString:"University of Orléans",institution:{name:"University of Orléans",institutionURL:null,country:{name:"France"}}},{id:"33993",title:"Dr.",name:"Jose Carlos",middleName:null,surname:"Jimenez-Lopez",slug:"jose-carlos-jimenez-lopez",fullName:"Jose Carlos Jimenez-Lopez",profilePictureURL:"https://mts.intechopen.com/storage/users/33993/images/system/33993.jpg",institutionString:"Spanish National Research Council",institution:{name:"Spanish National Research Council",institutionURL:null,country:{name:"Spain"}}},{id:"191770",title:"Dr.",name:"Mohamed A.",middleName:null,surname:"El-Esawi",slug:"mohamed-a.-el-esawi",fullName:"Mohamed A. El-Esawi",profilePictureURL:"https://mts.intechopen.com/storage/users/191770/images/system/191770.jpeg",institutionString:null,institution:{name:"Tanta University",institutionURL:null,country:{name:"Egypt"}}},{id:"247858",title:"Dr.",name:"Saddam",middleName:null,surname:"Hussain",slug:"saddam-hussain",fullName:"Saddam Hussain",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bSF2aQAG/Profile_Picture_1625658281836",institutionString:null,institution:{name:"University of Agriculture Faisalabad",institutionURL:null,country:{name:"Pakistan"}}}]},onlineFirstChapters:{paginationCount:10,paginationItems:[{id:"82196",title:"Multi-Features Assisted Age Invariant Face Recognition and Retrieval Using CNN with Scale Invariant Heat Kernel Signature",doi:"10.5772/intechopen.104944",signatures:"Kamarajugadda Kishore Kumar and Movva Pavani",slug:"multi-features-assisted-age-invariant-face-recognition-and-retrieval-using-cnn-with-scale-invariant-",totalDownloads:6,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Pattern Recognition - New Insights",coverURL:"https://cdn.intechopen.com/books/images_new/11442.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"82063",title:"Evaluating Similarities and Differences between Machine Learning and Traditional Statistical Modeling in Healthcare Analytics",doi:"10.5772/intechopen.105116",signatures:"Michele Bennett, Ewa J. Kleczyk, Karin Hayes and Rajesh Mehta",slug:"evaluating-similarities-and-differences-between-machine-learning-and-traditional-statistical-modelin",totalDownloads:6,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Machine Learning and Data Mining - Annual Volume 2022",coverURL:"https://cdn.intechopen.com/books/images_new/11422.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"81791",title:"Self-Supervised Contrastive Representation Learning in Computer Vision",doi:"10.5772/intechopen.104785",signatures:"Yalin Bastanlar and Semih Orhan",slug:"self-supervised-contrastive-representation-learning-in-computer-vision",totalDownloads:28,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Pattern Recognition - New Insights",coverURL:"https://cdn.intechopen.com/books/images_new/11442.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"79345",title:"Application of Jump Diffusion Models in Insurance Claim Estimation",doi:"10.5772/intechopen.99853",signatures:"Leonard Mushunje, Chiedza Elvina Mashiri, Edina Chandiwana and Maxwell Mashasha",slug:"application-of-jump-diffusion-models-in-insurance-claim-estimation-1",totalDownloads:8,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Data Clustering",coverURL:"https://cdn.intechopen.com/books/images_new/10820.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"81471",title:"Semantic Map: Bringing Together Groups and Discourses",doi:"10.5772/intechopen.103818",signatures:"Theodore Chadjipadelis and Georgia Panagiotidou",slug:"semantic-map-bringing-together-groups-and-discourses",totalDownloads:20,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Data Clustering",coverURL:"https://cdn.intechopen.com/books/images_new/10820.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"79491",title:"Fuzzy Perceptron Learning for Non-Linearly Separable Patterns",doi:"10.5772/intechopen.101312",signatures:"Raja Kishor Duggirala",slug:"fuzzy-perceptron-learning-for-non-linearly-separable-patterns",totalDownloads:17,totalCrossrefCites:0,totalDimensionsCites:0,authors:[{name:"Raja Kishor",surname:"Duggirala"}],book:{title:"Data Clustering",coverURL:"https://cdn.intechopen.com/books/images_new/10820.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"81331",title:"Machine Learning Algorithm-Based Contraceptive Practice among Ever-Married Women in Bangladesh: A Hierarchical Machine Learning Classification Approach",doi:"10.5772/intechopen.103187",signatures:"Iqramul Haq, Md. Ismail Hossain, Md. Moshiur Rahman, Md. Injamul Haq Methun, Ashis Talukder, Md. Jakaria Habib and Md. Sanwar Hossain",slug:"machine-learning-algorithm-based-contraceptive-practice-among-ever-married-women-in-bangladesh-a-hie",totalDownloads:20,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Machine Learning and Data Mining - Annual Volume 2022",coverURL:"https://cdn.intechopen.com/books/images_new/11422.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"80937",title:"Assessing Heterogeneity of Two-Part Model via Bayesian Model-Based Clustering with Its Application to Cocaine Use Data",doi:"10.5772/intechopen.103089",signatures:"Ye-Mao Xia, Qi-Hang Zhu and Jian-Wei Gou",slug:"assessing-heterogeneity-of-two-part-model-via-bayesian-model-based-clustering-with-its-application-t",totalDownloads:24,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Data Clustering",coverURL:"https://cdn.intechopen.com/books/images_new/10820.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"78846",title:"Clustering Algorithms: An Exploratory Review",doi:"10.5772/intechopen.100376",signatures:"R.S.M. Lakshmi Patibandla and Veeranjaneyulu N",slug:"clustering-algorithms-an-exploratory-review",totalDownloads:146,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Data Clustering",coverURL:"https://cdn.intechopen.com/books/images_new/10820.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}},{id:"78463",title:"Clustering by Similarity of Brazilian Legal Documents Using Natural Language Processing Approaches",doi:"10.5772/intechopen.99875",signatures:"Raphael Souza de Oliveira and Erick Giovani Sperandio Nascimento",slug:"clustering-by-similarity-of-brazilian-legal-documents-using-natural-language-processing-approaches",totalDownloads:157,totalCrossrefCites:1,totalDimensionsCites:1,authors:null,book:{title:"Data Clustering",coverURL:"https://cdn.intechopen.com/books/images_new/10820.jpg",subseries:{id:"26",title:"Machine Learning and Data Mining"}}}]},publishedBooks:{paginationCount:1,paginationItems:[{type:"book",id:"10654",title:"Brain-Computer Interface",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/10654.jpg",slug:"brain-computer-interface",publishedDate:"May 18th 2022",editedByType:"Edited by",bookSignature:"Vahid Asadpour",hash:"a5308884068cc53ed31c6baba756857f",volumeInSeries:9,fullTitle:"Brain-Computer Interface",editors:[{id:"165328",title:"Dr.",name:"Vahid",middleName:null,surname:"Asadpour",slug:"vahid-asadpour",fullName:"Vahid Asadpour",profilePictureURL:"https://mts.intechopen.com/storage/users/165328/images/system/165328.jpg",institutionString:"Kaiser Permanente Southern California",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},testimonialsList:[{id:"18",text:"It was great publishing with IntechOpen, the process was straightforward and I had support all along.",author:{id:"71579",name:"Berend",surname:"Olivier",institutionString:"Utrecht University",profilePictureURL:"https://mts.intechopen.com/storage/users/71579/images/system/71579.png",slug:"berend-olivier",institution:{id:"253",name:"Utrecht University",country:{id:null,name:"Netherlands"}}}},{id:"8",text:"I work with IntechOpen for a number of reasons: their professionalism, their mission in support of Open Access publishing, and the quality of their peer-reviewed publications, but also because they believe in equality.",author:{id:"202192",name:"Catrin",surname:"Rutland",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/202192/images/system/202192.png",slug:"catrin-rutland",institution:{id:"134",name:"University of Nottingham",country:{id:null,name:"United Kingdom"}}}},{id:"27",text:"The opportunity to work with a prestigious publisher allows for the possibility to collaborate with more research groups interested in animal nutrition, leading to the development of new feeding strategies and food valuation while being more sustainable with the environment, allowing more readers to learn about the subject.",author:{id:"175967",name:"Manuel",surname:"Gonzalez Ronquillo",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/175967/images/system/175967.png",slug:"manuel-gonzalez-ronquillo",institution:{id:"6221",name:"Universidad Autónoma del Estado de México",country:{id:null,name:"Mexico"}}}}]},submityourwork:{pteSeriesList:[{id:"14",title:"Artificial Intelligence",numberOfPublishedBooks:9,numberOfPublishedChapters:89,numberOfOpenTopics:6,numberOfUpcomingTopics:0,issn:"2633-1403",doi:"10.5772/intechopen.79920",isOpenForSubmission:!0},{id:"7",title:"Biomedical Engineering",numberOfPublishedBooks:12,numberOfPublishedChapters:104,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2631-5343",doi:"10.5772/intechopen.71985",isOpenForSubmission:!0}],lsSeriesList:[{id:"11",title:"Biochemistry",numberOfPublishedBooks:32,numberOfPublishedChapters:318,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2632-0983",doi:"10.5772/intechopen.72877",isOpenForSubmission:!0},{id:"25",title:"Environmental Sciences",numberOfPublishedBooks:1,numberOfPublishedChapters:12,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2754-6713",doi:"10.5772/intechopen.100362",isOpenForSubmission:!0},{id:"10",title:"Physiology",numberOfPublishedBooks:11,numberOfPublishedChapters:141,numberOfOpenTopics:4,numberOfUpcomingTopics:0,issn:"2631-8261",doi:"10.5772/intechopen.72796",isOpenForSubmission:!0}],hsSeriesList:[{id:"3",title:"Dentistry",numberOfPublishedBooks:8,numberOfPublishedChapters:129,numberOfOpenTopics:2,numberOfUpcomingTopics:0,issn:"2631-6218",doi:"10.5772/intechopen.71199",isOpenForSubmission:!0},{id:"6",title:"Infectious Diseases",numberOfPublishedBooks:13,numberOfPublishedChapters:113,numberOfOpenTopics:3,numberOfUpcomingTopics:1,issn:"2631-6188",doi:"10.5772/intechopen.71852",isOpenForSubmission:!0},{id:"13",title:"Veterinary Medicine and Science",numberOfPublishedBooks:11,numberOfPublishedChapters:106,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2632-0517",doi:"10.5772/intechopen.73681",isOpenForSubmission:!0}],sshSeriesList:[{id:"22",title:"Business, Management and Economics",numberOfPublishedBooks:1,numberOfPublishedChapters:19,numberOfOpenTopics:3,numberOfUpcomingTopics:0,issn:"2753-894X",doi:"10.5772/intechopen.100359",isOpenForSubmission:!0},{id:"23",title:"Education and Human Development",numberOfPublishedBooks:0,numberOfPublishedChapters:5,numberOfOpenTopics:1,numberOfUpcomingTopics:1,issn:null,doi:"10.5772/intechopen.100360",isOpenForSubmission:!0},{id:"24",title:"Sustainable Development",numberOfPublishedBooks:0,numberOfPublishedChapters:15,numberOfOpenTopics:5,numberOfUpcomingTopics:0,issn:null,doi:"10.5772/intechopen.100361",isOpenForSubmission:!0}],subseriesList:[],annualVolumeBook:{},thematicCollection:[],selectedSeries:null,selectedSubseries:null},seriesLanding:{item:null},libraryRecommendation:{success:null,errors:{},institutions:[]},route:{name:"profile.detail",path:"/profiles/333184",hash:"",query:{},params:{id:"333184"},fullPath:"/profiles/333184",meta:{},from:{name:null,path:"/",hash:"",query:{},params:{},fullPath:"/",meta:{}}}},function(){var e;(e=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(e)}()