\r\n\tGoverning equations of the flows and heat transfer with EHD consist of the Navier–Stokes equations, thermal effects, and additional EHD forces. Due to the complex nature of EHD, only a limited number of publications concerning modeling of the effects of EHD on laminar flows, without numerical solutions, can be identified.
",isbn:null,printIsbn:"979-953-307-X-X",pdfIsbn:null,doi:null,price:0,priceEur:0,priceUsd:0,slug:null,numberOfPages:0,isOpenForSubmission:!1,isSalesforceBook:!1,isNomenclature:!1,hash:"a555a6ba490d37aed450e899a08b13ab",bookSignature:"Dr. Mohsen Sheikholeslami Kandelousi",publishedDate:null,coverURL:"https://cdn.intechopen.com/books/images_new/8914.jpg",keywords:"Electric Field, Nanofluid, Electrode Arrangements, Ferrofluid, Transportation ,Heat Transfer, Joule Heating, Lorentz Forces, Kelvin Forces, Porous Media, Coulomb Forces, Natural Convection, Forced Convection, Mixed Convection, Scaling Analysis,Enhanced Heat Transfer, Semi Analytical Methods, Numerical Simulation",numberOfDownloads:null,numberOfWosCitations:0,numberOfCrossrefCitations:null,numberOfDimensionsCitations:null,numberOfTotalCitations:null,isAvailableForWebshopOrdering:!0,dateEndFirstStepPublish:"March 8th 2019",dateEndSecondStepPublish:"March 29th 2019",dateEndThirdStepPublish:"May 28th 2019",dateEndFourthStepPublish:"August 16th 2019",dateEndFifthStepPublish:"October 15th 2019",dateConfirmationOfParticipation:null,remainingDaysToSecondStep:"3 years",secondStepPassed:!0,areRegistrationsClosed:!0,currentStepOfPublishingProcess:5,editedByType:null,kuFlag:!1,biosketch:null,coeditorOneBiosketch:null,coeditorTwoBiosketch:null,coeditorThreeBiosketch:null,coeditorFourBiosketch:null,coeditorFiveBiosketch:null,editors:[{id:"185811",title:"Dr.",name:"Mohsen",middleName:null,surname:"Sheikholeslami Kandelousi",slug:"mohsen-sheikholeslami-kandelousi",fullName:"Mohsen Sheikholeslami Kandelousi",profilePictureURL:"https://mts.intechopen.com/storage/users/185811/images/system/185811.jpeg",biography:"Dr. Mohsen Sheikholeslami works at the Babol Noshirvani University of Technology’s Department of Mechanical Engineering in\nIran. He is Head of the Renewable energy systems and nanofluid\napplications in heat transfer Laboratory at Babol Noshirvani University of Technology. His research interests are nanofluid, CFD,\nsimulation, mesoscopic modeling, nonlinear science, magnetohydrodynamic, ferrohydrodynamic, electrohydrodynamic, and heat\nexchangers. He has written several papers and books in various fields of mechanical\nengineering. He is the first scientist to develop a new numerical method (CVFEM)\nand he published the reference book with title: “Application of Control Volume\nBased Finite Element Method (CVFEM) for Nanofluid Flow and Heat Transfer”. He\nis also the first author of the following books: “Applications of Nanofluid for Heat\nTransfer Enhancement”, “Application of semi analytical methods for nanofluid flow\nand heat transfer”, “Hydrothermal Analysis in Engineering Using Control Volume\nFinite Element Method”, and “External Magnetic Field Effects on Hydrothermal\nTreatment of Nanofluid”, which are published in ELSEVIER. According to the\nreports of Thomson Reuters (Clarivate Analytics), he has been selected as a Web of\nScience Highly Cited Researcher (Top 0.01%) in 2016, 2017, and 2018.",institutionString:"Babol Noshirvani University of Technology",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"1",totalChapterViews:"0",totalEditedBooks:"6",institution:{name:"Babol Noshirvani University of Technology",institutionURL:null,country:{name:"Iran"}}}],coeditorOne:null,coeditorTwo:null,coeditorThree:null,coeditorFour:null,coeditorFive:null,topics:[{id:"11",title:"Engineering",slug:"engineering"}],chapters:null,productType:{id:"1",title:"Edited Volume",chapterContentType:"chapter",authoredCaption:"Edited by"},personalPublishingAssistant:{id:"288104",firstName:"Ivana",lastName:"Spajic",middleName:null,title:"Ms.",imageUrl:"https://mts.intechopen.com/storage/users/288104/images/8497_n.jpg",email:"ivana.s@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. 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1. Introduction
Large wind turbines use mechanical systems, such as geared or gearless devices to increase the speed of the generator. In addition, an inverter is employed to adjust the output voltage to exceed the grid value. With its phase leading the bus phase, wind power can be integrated into the grid bus. The integration can be easily realized owing to negligible impedance of the utility bus. The main issues for wind-power generating systems include fluctuations in output voltage and quality of power supplied to the utility power system. In small renewable energy systems, wind power and solar energy are integrated to improve the reliability of the individual power system. Conventionally, the AC output voltage of the wind turbine is rectified, and then combined with the output voltage of the solar cell to charge the battery and provide power supply to the load. To characterize the battery, the Thevenin battery model considering the nonlinear effect of source impedances was proposed. A battery evaluation test system was employed to validate this model. The curve of test results follows entirely the theoretical calculation [1]-[3]. For photovoltaic application, the inner resistance of solar panel was also included in the theoretical analysis. The maximum power point tracking (MPPT) of solar panel for different insolation levels verified the proposed solar cell model. The MPPT technique adjusted continuously the battery-charging rate and obtained shorter charge time [4]. It was reported that a dual battery configuration with deep-cycle batteries can increase the available capacity. Moreover, the system may achieve optimum utilization of the PV array and proper maintenance of the storage battery [5]. In another research, a microcontroller was employed to adjust the maximum charging current according to the PV power production and battery voltage level. Using this method, better exploitation of the power produced by the PV power source can be achieved. Moreover, battery lifetime can be increased by restoring high state of charge (SOC) in short charging time [6]. Another study compared the performance of equal rate charging, proportional rate and pulse current charging in charging multiple batteries. The total charging time is shortest when using pulse current charging strategy. All the batteries become fully charged almost simultaneously when they are charged with proportional rate or pulse current method [7]. The optimum size of the PV module for a specific wind turbine to meet the load requirement for the hybrid wind/PV system was investigated in order to minimize the overall cost of the system [8] - [9]. Nevertheless, the effect of source impedance in a small hybrid wind/PV system has not yet been investigated. In this study, theoretical analysis shows that it is difficult to obtain both wind power and solar energy at the same time by traditional methods, which is verified by field test. To overcome such problem, a microprocessor-based controller design for detecting instantaneous voltage variations of both energy sources is proposed, and a charge controller is employed to optimize the charging operation.
2. Theory and analysis
Owing to the large variation in the wind and solar energy, the converter is employed to provide the stable power for normal application. When only one energy source supplies the load, as shown in Fig.1(a), the voltage and frequency of the converter output is adjusted to meet the load specification. In Fig. 1(b), both wind and solar energy supply the same load simultaneously. In addition to the load requirement, the voltage and frequency of both converter outputs are adjusted such as the two energy sources can supply the load at the same time. In case of the DC-DC converter, only the output voltage of both converters should be adjusted to charge the same load.
In a small hybrid power system, a battery is usually utilized to store the renewable energy to improve the reliability of the system. Moreover, to simplify the power system, the power source charges directly the battery. Figure 2 shows the conventional charging system, in which the rectified DC voltage charges two batteries. In addition to source voltages Ew, E1 and E2, charging currents I1 and I2 are also determined by source resistances rw, r1 and r2 for the wind power and the two batteries, respectively. The output voltage V0 is the summation of V0w, V01 and V02 from wind power and batteries E1 and E2, respectively. According to the circuit theory, the equations for V0w, V01 and V02 are as follows:
V0w=Ew(r1r2rwr1+r1r2+rwr2)E1
V01=E1(r2r1+r2)E2
V02=E2(r1r1+r2)E3
\n\t\t\t
V0=V0w+V01+V02E4
\n\t\t\t
As mentioned, Vow, Vo1 and Vo2 are voltages from wind power and the two batteries, respectively, which contribute to the output voltage Vo independently.
Figure 1.
(a) Wind or solar power supplies the load through a converter. (b) The wind and solar power use two converters to supply the load at the same time. The voltage and frequency of the converters are adjusted to meet the load requirement.
The following are possible charging situations.
When V0w\n\t\t\t\t\t\t> V01\n\t\t\t\t\t\t= V02, the charging current from wind power charges simultaneously both batteries E1 and E2.
When V0w\n\t\t\t\t\t\t> V01\n\t\t\t\t\t\t> V02, the charging currents from both wind power and battery E1 charge battery E2.
When V0w\n\t\t\t\t\t\t> V02\n\t\t\t\t\t\t>V01, similar to case (b), the charging currents from both wind power and battery E2 charge battery E1.
When V01\n\t\t\t\t\t\t> V0w\n\t\t\t\t\t\t>V02, wind power has no effect on the circuit, only battery E1 charges battery E2.
When V02> V0w\n\t\t\t\t\t\t>V01, similar to case (d), wind power has no effect on the circuit, only E2 charges battery E1.
As seen in above analysis, it is only in case (a) that wind power can charge both batteries at the same time. However, in case (b), when battery E1 also charges battery E2, the voltage drop of I1\n\t\t\t\tr1 and I2\n\t\t\t\tr2 cause increase in V02 and decrease in V01 respectively. Finally, when V01 = V02, the charging condition returns to case (a). Case (c) is similar to case (b), so it exhibits self-regulating behavior during the charging process. Cases (d) and (e) are not normal charging conditions.
Figure 2.
Wind power charges both batteries. During the charging process, the increase in charging current I1 leads to increase in internal voltage drop I1\n\t\t\t\t\t\tr1, which raises Vo, and in turn increases I2. Therefore, this charging configuration comprises a self-regulation mechanism.
Figure 3(a) shows a hybrid wind and PV power generating system. Ew, Ep, Eb, rw, rp and rb are factors that determine the charging current. Similar to the above conventional charging conditions, the output voltage V0 is made up of Vow, Vop and Vob from the wind generator, solar panel and battery, respectively. The related equations are listed below.
Vow=Ew(rbrw+rb)E5
\n\t\t\t
Vop=Ep(rbrp+rb)E6
\n\t\t\t
Vo=Eb+Vow+VopE7
\n\t\t\t
Possible charging conditions are as follows:
When Vow\n\t\t\t\t\t\t> Vop\n\t\t\t\t\t\t> Eb, both wind and solar energies charge the battery.
When Vop\n\t\t\t\t\t\t> Vow\n\t\t\t\t\t\t> Eb, both wind and solar energies charge the battery.
When Vow\n\t\t\t\t\t\t> Vop, only wind energy charges the battery.
When Vop\n\t\t\t\t\t\t> Vow, only solar energy charges the battery.
From the above analysis, in cases (a) and (b), there are two energy sources charging a battery at the same time. However, in case (a), the larger current Iw from wind energy may result in a larger internal voltage drop Ib\n\t\t\t\trb of the battery. Therefore, when Vow\n\t\t\t\t> Vop, the charging condition becomes case (c), and solar energy cannot be utilized to charge the battery. Case (b) shows the same behavior. Contrary to the conventional charging system, the hybrid charging system exhibits a competition effect, meaning that only the larger power source can dominate the charging system.
Figure 3(b) shows the I-V curves of the charging system. Because the source resistance of the wind generator is much smaller than that of the solar panel, the wind I-V curve reduces slowly with increase in charging current. The source resistance of the battery is also much smaller than that of the wind generator. Therefore, the terminal voltage of the battery Vo increases only slightly with increase in charging current. When the solar I-V curve drops to P, which is equal to the terminal voltage of the battery, the solar energy stops charging the battery.
Figure 3(c) shows the V-T curves of the charging system. Before time To, the battery is in under-charge condition, both power sources behave as the current sources with their ratio of output currents proportional to that of generated power levels. For time To to Tf, the source resistance of the solar panel lowers gradually the solar charging current and the battery terminal voltage Vo increases slowly. Finally, at time Tf, only wind power can charge the battery.
To improve the performance of the hybrid power generating system shown above, a switch control is employed. It is connected to the battery circuit as shown in Fig. 4. In this operation mode, both wind and solar energy can be utilized, although only one energy source can charge the battery at any time. Owing to the different characteristics of wind and solar energy, as shown in Eq. (10), we can adjust the charging duty cycle ratio k of the two energy sources to obtain maximum energy in the battery. The equations are listed below.
Vow=Eb+Ew(rbrb+rw)E8
\n\t\t\t
Vop=Eb+Ep(rbrb+rp)E9
\n\t\t\t
W=kWw+(1−k)WpE10
\n\t\t\t
Figure 3.
(a) Small hybrid wind and PV energy charging system. Two power sources charge a battery. Owing to the internal voltage drop caused by impedance of wind, solar and battery power source, only one power source can contribute to the charging process. (b) I-V characteristics of the charging system. When the solar I-V curve drops to point P, solar power cannot charge the battery. (c) Simplified charging curve of the system. Two current sources charge the battery before time To. Then, charging speed reduces because of increase in resistance of the solar power circuit. After time Tf, only wind power charges the battery.
Figure 4.
Switch-controlled wind and PV energy charging system. The wind and solar power charge a battery alternately. Both power sources can charge the same battery at different times. During solar energy charging, mechanical energy generated by inertia of the wind turbine will be stored and employed to charge the battery during wind energy charging. On the other hand, solar energy cannot be stored but will be lost during wind energy charging. In view of this, we can adjust the wind power charging duration to obtain the maximum energy.
To overcome the drawbacks of the hybrid wind and PV charging system shown above, a microprocessor-controlled power generating system, as shown in Fig.5, is proposed. The different charging modes, which vary with the weather conditions to obtain the maximum energy, are shown in Table 1. With both energy sources, the system operates in the independent charging mode. The wind and solar energy charge batteries Ebw and Ebp, respectively. If there is only one energy source, the system runs in the hybrid charging mode. Either energy source can charge batteries Ebw and Ebp simultaneously. Owing to the instability of wind energy, if both energy sources co-exist, wind energy exceeds the threshold value, the charging system runs in the wind-enhanced mode. In this case, not only can both energy sources be employed to improve the reliability of power system, the fluctuations in the small wind power generating system can also be reduced.
Figure 5.
Microprocessor-controlled wind and PV energy charging system. Both power sources charge the two batteries. According to the wind and solar energy conditions, the controller regulates the charging conditions for Ebw and Ebp. There is no power loss in this charging system. When there is only one power source, it can charge both batteries. With both power sources and high wind energy, the excess wind energy charges battery Ebp. The controller improves greatly the reliability of this charging system.
Table 1.
Microprocessor – controlled charging modes, Under independent charging condition, the solar energy and wind energy charges respectively the corresponding battery. Under hybrid charging condition, both energy sources charge the two batteries simultaneously.
3. Results and discussion
3.1. Source resistance measurements
To measure battery source resistance, as shown in Fig. 6(a), a 12-V/75-AH battery supplied the load through a switch. We adjusted the load resistance RL to change the battery discharging current Ib. From the voltage difference Eb\n\t\t\t\t\t– Vo and Ib, the source resistance rb can be determined.
Because the solar energy is much smaller than the battery energy and the solar cell internal resistance rp is much larger than the battery source resistance rb, as shown in Fig. 6(b), the output terminal of the solar panel is directly grounded to measure the solar charging current Ip. A 75-W solar cell panel was used in the experiment performed outdoors. From the solar voltage Ep and the current Ip, the solar internal resistance can be determined.
Figure 6.
(a) Circuit for measuring battery source resistance. Because much energy is stored in the battery Eb and the battery source resistance rb is small, RL is employed to limit the discharging current Ib. (b) Circuit for measuring solar cell internal resistance. Solar current Ip is varied by adjusting the orientation of the solar cell panel relative to the sun.
As shown in Fig. 7(a), the source resistance of battery decreases with increasing discharge current. The battery source resistance is about 0.02-0.12 Ω for discharging current 1-13 A. The power loss of the source resistance results in temperature rise of the battery. Hence, chemical reaction proceeds more easily with increasing charging current and the resistance to battery charging is reduced.
The source resistance of solar cell panel, as shown in Fig. 7(b), also decreases with increasing short-circuit current However; the source resistance of the solar cell panel is much larger than that of battery. Even though the area of the solar cell panel is large, the thickness of the solar cell structure is too small to increase the efficiency of optical absorption. Conventionally, the thickness of the solar cell active layer is in the micrometer range. Moreover, the resistivity of solar cell is large, which results in high source resistance.
The stator of PMG has 36 slots wound with 40 turns of 0.8-Φ copper wires. The source resistance (one phase) of PMG is found to be 0.5 Ω. It is much smaller than the source resistance of the solar cell panel (about 6-18 Ω). In general, the difference in voltage between wind energy source\n\t\t\t\t\tEw and solar energy source Ep is not large. According to Eqs. (5) and (6), when the wind turbine is in operation, the wind output Vow is much larger than the solar output Vop. Therefore, the wind turbine dominates the battery charging behavior.
Figure 7.
Under conventional wind speed, the source impedance of the PMG comes from the resistance of copper winding of the stator. Copper is a good conductor. Therefore, there is only a small variation in resistance when the generator current increases. In (a), the battery stores the chemical energy. Under loaded condition, thermal effect increases with the current in the battery, which speeds up the chemical reaction. Hence, the source resistance of the battery decreases with the current. However, the solar cell is made up of semiconductors. In addition to the high resistance of semiconductors, there is also a large variation in resistance of the solar cell when the current increases, as shown in (b).
3.2. Conventional hybrid wind and PV power generating system
In this study, a 250-W permanent magnet alternator driven by wind turbine and a 12-V/75-W solar cell panel were used as the wind and solar energy source, respectively. Both energy sources were output to 12-V/75-AH lead batteries, which were kept in under-charged condition before test. In the experiment, a 100- MHz scope was employed to measure the charging current and battery voltage. A current probe set at 100 mV/A was utilized to sense the charging current. The alternator outputs were converted into DC output by a rectifier module to charge the batteries. As shown in Fig. 8, there was a large variation in current and voltage because of the unstable wind speed. The fluctuations in amplitude of the charging current were attributed to the conventional AC-DC rectification effect. Increase in wind speed also led to increase in charging current. The variation in battery voltage as a result of internal impedance is above 1V.
Figure 8.
Charging current (Ch1: A/div) and battery voltage (Ch2: 5 V/div) of wind power. Owing to the source resistance of the battery, the internal voltage drop increases with the charging current Ib. This leads to the increase in the battery voltage Eb.
A battery was charged by wind and solar energy sources using the conventional wind and PV charging system, as shown in Fig. 3. In the first 30 minutes, the battery remained in an under-charged condition. As shown in Fig. 9(a), the stable 0.8-A PV charging current is not affected by the large variation in wind charging current. After 1 hour, as seen in Fig. 9(b), the charging curve of solar energy shows an opposite trend as that of wind power. The solar charging current decreases as the wind charging current increases. After 2 hours, as shown in Fig. 9(c), either solar energy or wind power dominates the charging behavior. When the wind charging current exceeds 3 A, the solar energy source does not output any power. Therefore, the system cannot get both wind and solar energy at the same time.
Figure 9.
Both wind and solar sources charge a single battery. Ch1: wind charging current (A/div), Ch2: solar charging current (A/div). (a) During the first 30 minutes, despite large variations in the wind charging current Iw, both energy sources charge the battery simultaneously, indicating that the open-circuit battery voltage Eb is small. (b) After 1-hour charging, competitive behavior occurs. When the wind charging current Iw exceeds 6.5A, the solar charging current Ip decreases. The large wind charging current increases the internal voltage drop of the battery, which leads to decrease in solar charging current. (c) After 2-hour charging, a wind charging current of only 0.5 A can reduce the solar charging current from 1.8 A. This points out that the battery voltage builds up gradually and the small internal voltage drop is enough to exclude the solar charging current. Therefore, the small source impedance of the wind generator dominates the charging operation. A wind charging current of only 3 A can stop the solar charging current.
3.3. Switch- control hybrid wind and PV power generating system
In order to acquire both wind and solar energy at the same time, the system is configured as in Fig. 4. As seen in Fig. 10(a)-(c), the wind to solar charging duty cycle ratio is changed to examine the charging behavior at three wind speeds. Owing to fluctuations in wind speed at 3 m/s, the system sometimes stops outputting the wind charging current, as seen in Fig. 10(a), while the charging of battery by solar energy remains very stable. When wind speed increases to 4 m/s, as shown in Fig. 10(b), the wind charging current continues to charge the battery during its duty cycle, but the current decreases during charging. When the solar charging duration is increased to 3.2 seconds, the wind charging current drops to 2 A, as seen in Fig. 10(c) prior to solar charging. Upon completion of solar charging, i.e. after 3.2 seconds, the wind charging current increases to 4 A and falls gradually back to 2 A This phenomenon can be explained as follows. During solar energy charging, the wind turbine is in a no-load condition. Wind energy is thus converted into mechanical energy, which speeds up the alternator. In other words, owing to the inertial momentum, the wind turbine can store mechanical energy, and solar energy is not best utilized or lost during wind charging. Therefore, the charging duty cycle ratio between wind and solar energy can be adjusted to obtain the maximum energy source.
3.4. Microprocessor- controlled hybrid wind and PV power generating system
In the above two cases, there is always some energy loss during the power generating system operation. To obtain both wind and solar energy at the same time, a microprocessor and two batteries as shown in Fig. 5 are employed to control the charging operation from both energy sources. Figure 11 displays the circuit in detail, in which controller IC1 and comparator IC2 control the system operation. Depending on the weather condition, wind energy can charge the wind battery Ebw directly or the solar battery Ebp indirectly through Qws. Both wind and solar energy are sensed by two comparators of IC2. One senses the sunlight to control the load while the other monitors the charging condition of the wind battery. If there has been no wind or sun for some days and both wind and solar energies remain insufficient, the two batteries will be in under-charged condition and utility power supply will be used instead. In view of large variations in wind energy, a current transformer CT is employed to detect the charging current of the wind battery. If the charging current exceeds the specification of the battery, Qw runs in PWM mode to protect the battery. All functions are controlled by the software of controller IC1.
As shown in Fig. 12, when wind speed is low, about 3 m/s, the system runs in the independent charging mode and the solar battery charging current remains constant at 2A, although there are slight variations in the charging current of the wind battery.
If there is only wind power, as shown in Fig. 14(a), the system runs in the wind- hybrid charging mode, so the unstable wind charging current charges both wind and solar batteries. When the charging current is less than 2 A, as shown in Fig. 14(b), the system remains in the wind- hybrid charging mode and only the wind battery is being charged.
When there is solar energy and a high wind speed at the same time, as shown in Fig. 15, the system runs in the wind-enhanced charging mode. In order to benefit from both energy sources and reduce fluctuations from the wind source, the system runs in the wind-enhanced charging mode when the wind charging current is above 3A. The wind charging current charges the solar battery in addition to the original wind battery, leading to variations in the solar charging current. When the wind charging current is below 3A, the system runs in the independent charging mode. That is, the stable solar charging current of 2A and the fluctuating wind charging current charge the solar battery and the wind battery, respectively.
Figure 10.
Switch-controlled wind and solar sources charge a battery. Ch1: battery charging current (A/div), Ch2: solar charging current (a),(b), wind charging current (c) (A/div). (a) Wind speed is 3 m/s, but it is unstable. The charging duty cycle ratio between solar and wind power is 2:1. In the absence of wind power, only the solar charging current (0.6 A) charges the battery. In the presence of wind power, the wind charging current gradually decays. Because the wind charging duration is only 0.8 second, steady state cannot be attained. (b) Wind speed is increased to about 4 m/s and solar charging current is decreased to 0.4 A. Wind energy exceeds solar energy. (c) Wind speed is increased to 5 m/s. The charging duty cycle ratio between solar and wind power is changed to 1:2. Moreover, the solar charging duration is extended from 1.8 to 3.2 seconds. In this situation, mechanical energy accumulated by inertia of the wind turbine during solar charging can also be utilized during wind charging. Hence, this configuration can ensure full utilization of wind energy with no loss at all.
Figure 11.
Microprocessor-controlled hybrid wind and solar charging circuit. Microprocessor IC1 and Comparator IC2 controls the wind charging current Iw and the solar charging current Ip that fuel the wind (Ebw) and solar (Ebp) battery. According to the weather condition, the wind and solar charging currents may charge either the wind or solar battery. Current transformer CT senses the wind charging current to prevent damage to the battery by excess charging current. If the energy of the batteries cannot meet the power required, utility power supply is used instead.
Figure 12.
Both solar and wind power co-exist. The controller operates in the independent charging mode. The wind charging current charges the wind battery (Ch1: A/div) while the solar charging current charges the solar battery (Ch2: A/div).
Figure 13.
The charging system operates in two stages. In Stage 1, only solar energy exists. The solar charging current not only charges the solar battery but also the wind battery. In Stage 2, when wind power also exists, the wind charging current charges the wind battery. Part of the solar charging current is switched back to the solar battery. Ch1, Ch2: A/div.
Figure 14.
The charging system operates when there is only wind power. (a) When wind speed exceeds 5 m/s, the wind charging current charges both wind and solar batteries. (b) When wind speed drops gradually below 3 m/s, the wind charging current in the solar battery decreases to zero. Ch1, Ch2: A/div
Figure 15.
Both wind and solar power sources co-exist, but wind speed sometimes exceeds 8 m/s. The charging system operates in two stages. In Stage 1, when wind speed is below 5 m/s, same as that in Fig. 12, the solar and wind charging currents charge the solar and wind battery, respectively. In Stage 2, when wind speed is increased, the wind charging current not only charges the wind battery, but also the solar battery. That is, there are two currents charging the solar battery. Ch1, Ch2: A/div
4. Conclusion
In this study, theoretical investigations are performed to examine the effect of source impedance on a small hybrid wind and PV power system. Because of voltage drop in power sources, both energy sources cannot charge a battery simultaneously after initial charging. This study proposed using a switch circuit to increase the utilization of both energy sources. There is only slight solar energy loss when wind power is in operation. To increase energy efficiency by gaining both wind and solar energy, a microprocessor-based hybrid charging system is proposed. Results show that besides increasing the reliability of the power system, the fluctuations in wind energy source are also reduced.
\n',keywords:null,chapterPDFUrl:"https://cdn.intechopen.com/pdfs/43442.pdf",chapterXML:"https://mts.intechopen.com/source/xml/43442.xml",downloadPdfUrl:"/chapter/pdf-download/43442",previewPdfUrl:"/chapter/pdf-preview/43442",totalDownloads:3165,totalViews:275,totalCrossrefCites:0,totalDimensionsCites:0,totalAltmetricsMentions:0,impactScore:0,impactScorePercentile:10,impactScoreQuartile:1,hasAltmetrics:0,dateSubmitted:"March 29th 2012",dateReviewed:"October 18th 2012",datePrePublished:null,datePublished:"March 6th 2013",dateFinished:"February 28th 2013",readingETA:"0",abstract:null,reviewType:"peer-reviewed",bibtexUrl:"/chapter/bibtex/43442",risUrl:"/chapter/ris/43442",book:{id:"3118",slug:"solar-cells-research-and-application-perspectives"},signatures:"Mu-Kuen Chen and Chao-Yuan Cheng",authors:[{id:"154184",title:"Prof.",name:"Mu-Kuen",middleName:null,surname:"Chen",fullName:"Mu-Kuen Chen",slug:"mu-kuen-chen",email:"cmk@mail.sju.edu.tw",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",institution:{name:"Saint John's University",institutionURL:null,country:{name:"Thailand"}}}],sections:[{id:"sec_1",title:"1. Introduction",level:"1"},{id:"sec_2",title:"2. Theory and analysis",level:"1"},{id:"sec_3",title:"3. Results and discussion",level:"1"},{id:"sec_3_2",title:"3.1. Source resistance measurements",level:"2"},{id:"sec_4_2",title:"3.2. Conventional hybrid wind and PV power generating system",level:"2"},{id:"sec_5_2",title:"3.3. Switch- control hybrid wind and PV power generating system",level:"2"},{id:"sec_6_2",title:"3.4. Microprocessor- controlled hybrid wind and PV power generating system",level:"2"},{id:"sec_8",title:"4. Conclusion",level:"1"}],chapterReferences:[{id:"B1",body:'Salameh, Z. M., Casacca, M. A. and Lynch, W. A. “A mathematical model for lead-acid batteries,” IEEE Trans. On Energy Conversion, vol.7, no.1, pp 93-98, Mar. 1992.'},{id:"B2",body:'H. G. Zimmerman and R. G. Peterson, “An electrochemical cell equivalent circuit for storage battery/power system calculations by digital computer”, Proceedings 13th Intersociety Energy Conversion Engineering Conference, pp. 33-38, 1978.'},{id:"B3",body:'Harrington, S. and Dunlop, J. “Battery charge controller characteristics in photovoltaic systems,” IEEE AES Magazine, pp 15-21, Aug. 1992'},{id:"B4",body:'Masoum, M. A. S., Badejani, S. M. M. and Fuchs, E. F., “Microprocessor-controlled new class of optimal battery chargers for photovoltaic applications,” IEEE Trans. On Energy Conversion, vol.19, no.3, pp 599-606, Sep. 2004.'},{id:"B5",body:'Casacca, M. A., Capobianco, M. R. and Salameh, Z. M. “Lead acid battery storage configurations for improved available capacity,” IEEE Trans. On Energy Conversion, vol.11, no.3, pp 139-145, Mar. 1996.'},{id:"B6",body:'Koutroulis E. and Kalaitzakis K., “Novel battery charging regulation system for photovoltaic applications,” IEE Proc. Electr. Power Appl. vol.151, no.2, pp 191-197, March 2004'},{id:"B7",body:'Jiang Z. and Dougal, R. A. “Control strategies for active power sharing in a fuel-cell-powered battery-charging station,” IEEE Trans. On Industry Applications, vol. 40, no. 3, pp 917-924, May/Jun, 2004'},{id:"B8",body:'Borowy, B. S. and Salameh, Z. M., “Optimum photovoltaic array size for a hybrid wind/PV system,” IEEE Trans. On Energy Conversion, vol.9, no.3, pp 482-488, Sep. 1994.'},{id:"B9",body:'Chedid, R. and Rahman, S., “Unit sizing and control of hybrid wind-solar power systems,” IEEE Trans. On Energy Conversion, vol.2, no.1, pp 79-85, Mar. 1997. '}],footnotes:[],contributors:[{corresp:null,contributorFullName:"Mu-Kuen Chen",address:null,affiliation:'
Department of Electrical Engineering, St. John’s University, Taiwan
Department of Electrical Engineering, St. John’s University, Taiwan
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1. Introduction
Human hygiene is considered as one of the most effective ways of preventing diseases, and germs. Center for diseases control and prevention (CDC) associated many diseases and sicknesses to poor body hygiene [1, 2]. One key body part that requires constant and continuous hygiene to prevent human infection from germs and diseases is hands. In 2004, one of the US FDA studies revealed that food establishments were frequently out of compliance with the food code requirements for proper and adequate handwashing. In the study, the percentage of food establishments observed to be out of compliance with handwashing requirements ranged from 34% in hospitals to 73% in full-service establishments [3]. Our world today faces alarming rates of diseases related to hygiene and the quick spread of germs via contact of improper hand hygiene. According to the CDC [4], it is established that keeping hands clean is one of the most important steps to avoid sickness and spreading of germs and diseases to others. Hand hygiene is the most effective measure for interrupting the transmission of microorganisms, which cause infection both in the community and in the healthcare setting. Therefore, using epidemiology model, transmission of diseases and germs through poor hand hygiene practices could be reduced in the society. The use of restrooms and other everyday activities regularly expose a human to germs; therefore, the need to explore other factors surrounding handwashing for hygiene purposes is essential.
The knowledge of handwashing as a measure of hand and personal hygiene is not new, as it has been successfully transferred from generations to generations. Handwashing has been linked to culture and religion, see Staub [5]. The United States of America officially recommended that healthcare workers (HCWs) should wash their hands with soap for 1–2 min before and after patient contact, see Coppage [6]. In 1975, CDC released handwashing guidelines and practice in the healthcare (hospitals) and later modified the original version in 1985 [7, 8]. Research has revealed that the revised CDC handwashing guideline has been expanded for better practice in all organizations [9, 10, 11].
While we can say training people on the handwashing routine is important and it has helped improving hand hygiene practice, the attention to hand hygiene in health and safety should go beyond educating people commonly known in the healthcare industry. According to Jang et al. [12], healthcare workers’ workload, other job interruptions, and overly conservative guidelines make it difficult to adhere to hand hygiene. The same authors concluded that it is imperative to study other factors on proper handwashing practice to make handwashing hygiene a lifestyle other than a routine. The process of hand hygiene could be regarded as cumbersome and demanding for many people due to workload and other conditions like availability of toiletries, environmental and structural conditions. It is no doubt that many people know that hand hygiene what is the most effective measure to prevent microbial pathogen cross-transmission and other healthcare-associated infections but wasn’t enough to get people to do it and practice the routine that leads to good handwashing practice. World Health Organization (WHO) reported that several continuous evaluations and good team methodologies have helped compliance but are yet to sustain in specific critical communities and healthcare areas [13]. The study further shows that mentoring aside other handwashing routines could be an excellent way to make hand hygiene a lifestyle.
Experts have proven that hand hygiene is the most effective measure for interrupting the transmission of microorganisms, which cause infection both in the community and in the healthcare setting. Using hand hygiene as a training measure of reducing disease is unlikely to be successful when other factors in infection control, such as environmental hygiene, crowding, staffing levels, and education, are inadequate. Therefore, the way people use restrooms and regularly exposed to germs in everyday activities makes it essential to explore other factors surrounding handwashing that could encourage hand and body hygiene in general.
The lack of appropriate infrastructure, religious beliefs, and workplace conditions were the major influencers on the low compliance to handwashing hygiene among the health professionals [14, 15, 16]. It is about time to start focusing on the influencers on low complaint rates.
1.1 Children hand hygiene
About 1.8 million children under the age of 5 die due to diarrhea and pneumonia every year [17]. Diarrhea and pneumonia are the top two killers among children all over the world [17]. The same study showed how handwashing is the most effective way to prevent people in the world from dying through diseases and much other life-threatening conditions from hand contamination. Handwashing with soap has a strong capability to protect and shield about one out of every three young children who get sick with diarrhea [18, 19], and practically one out of five young children with respiratory infections like pneumonia [19]. Another research shows handwashing in educational institutions and access to water and soap in schools could improve student health [20, 21]. Children’s exposure to proper handwashing from early life might help to improve their development in some settings [22]. If hand washing could affect children around the world this much, then, proper handwashing should be included in all organization culture.
If hand hygiene can be included in daily human behavior, it automatically becomes a lifestyle and not just a routine, because humans can tire of routine with time, but a lifestyle is part of human behavior that cannot be easily broken. In 2005, Jumaa highlighted areas needed for further research on proper handwashing, which include environmental conditions, people acts etc. and further concluded that cultural and behavioral issues also contributed to the poor practice of hand hygiene. This study investigated other factors influencing public’s poor handwashing habits, suggested better restroom designs, and provided recommendations for improvement.
Objectives of the study
Develop a questionnaire that captures public opinion on the use of public restrooms or school restrooms.
Propose a better design structure based on survey feedback and design of prototype.
Evaluate prototype from user perception.
2. Working methods
This study was conducted in a university environment. The university is in Hammond and Westville, Northwest Indiana US. Data were collected through survey. The survey was a self-developed questionnaire adapted from a standardized resource online. Survey was reviewed by three experts, two health practitioners, and one safety specialist to validate the contents for the purpose of the research. The questions were presented in the form of Likert scale options. The IRB office of the university where the study was conducted approved the protocol before survey distribution. The survey was distributed via email to all students, faculty, and all the university employees. Four hundred and twenty-seven (427) participants, including 246 students, 109 university employees, and 72 faculty, participated in the study. Participants include 147 males, 270 females, and 9 people who preferred not to indicate their gender. All the participants took the same survey with the same preferences given to all. The research was divided into three parts. The first part is the questionnaire, research on appropriate solutions and redesign for appropriateness. The survey questions focused on the toilet’s settings, design, user habit, and toiletries availability.
3. Data analysis and results
3.1 Data analysis
Data compilation was done with the use of Excel® version 365 ProPlus. The use, cleanliness, structure, and factors that affect handwashing practices were evaluated using simple descriptive statistics and inferential statistics (Welch T-tests). Descriptive statistics was used to assess the differences in the proportions of participants reporting specific handwashing practices by gender. At the beginning of the analysis, the data were checked for normality. As expected, the percentage who had used the college restrooms one time or more was found to be 100% (out of which 35% were male, 64% female, and 2% preferred not to say). Table 1 details the frequency distribution of the participants in percentage. Analysis shows that the percentage of those who used the restrooms always was the highest with 71% compared with those who sometimes or rarely used the restroom, that is, 14%.
Level
Responses
Gender
Male
35%
Female
63%
Prefer not to say
2%
Category
Student
58%
Faculty
17%
University employee
25%
Age
18–25
40%
25–30
8%
30+
52%
Table 1.
Participants percentage distribution.
The percentage of those who are comfortable using the school restroom was 44% based on different levels of comfortability while the percentage of those who are rarely or not comfortable is 34%. About 88% of the participants reported to always wash their hands after the use of restrooms. Approximately 99% agreed to have seen someone at some point walking out of the restroom without washing their hands, 85% strongly agreed that hand and body hygiene is paramount after the use of public and private restrooms. Furthermore, 72% strongly agreed that proper handwashing will prevent one from many diseases and sicknesses, 22% agreed to some degree while only 3% somewhat disagreed. In another question, participants were asked if they have received any form of hand hygiene training in the last 3 years. The responses show that 50% had received different forms of training in the last 3 years. The use of alcohol-based hand rub for hand hygiene also shows about 67% at different level of agreement.
Only 215 participants responded to the open-ended question, the responses showed 48.8% strongly suggested restroom redesign to improve hand hygiene and reduce germs transmission. Approximately 14% believe that automated hand-sanitizer machines should be installed in the restrooms. Further, only 3% of the participants responded that the inclusion of handwashing training as part of the school curriculum and regular cleaning of the university community restrooms would improve hygiene practices.
3.2 Results
Survey questions were divided into two categories, the first part focused on individual hand hygiene and the second part focused on restroom restructure or redesign for health safety purposes of the community. Figure 1 is the graphical representation that shows the significances of some major factors that could potentially affect college restrooms and handwashing hygiene among college students:
Figure 1.
Graphical representations of survey responses.
The purpose of this study is to investigate factors influencing poor handwashing practices in the community, especially among the younger generation. These days, poor handwashing practices and inadequate body hygiene have been attributed to different illnesses around the world and have increasingly expanded the spreading of the present pandemic case called COVID-19. Therefore, the results of this study could be instrumental to promote good handwashing practices. Promotion of good handwashing will prevent viral infection and reduce exponential chances of spreading any illness outbreak. Handwashing hygiene should be taken beyond restrooms, but also to prevent viral infections, especially those that spread through droplets from coughs and sneezes. In this situation, proper handwashing is the first line of measure.
Four survey questions that specifically addressed restroom redesign and restructure were separately analyzed using descriptive and inferential statistics (Welch T-test). Participants’ responses on the question “Do you think public restrooms should be structured and well designed for Heath safety?” were analyzed. The participants that neither agreed nor disagreed (in-between) were eliminated in order to define the significance of those that agreed or disagreed. The number of people in this category was found to be 10, constituting 2% of the total participants. Group 1 was considered people who disagreed and group 2 as people who agreed with restroom redesign.
Table 2 shows that only two participants disagreed to the opinion that public restrooms on campus should be restructured and well redesigned for health safety of the users, while 416 agreed to the opinion that university community restrooms should be restructured and redesigned for health safety (Table 3).
Categories
Participants’ answer
Disagree
2
Neither nor
9
Agree
416
Total
427
Table 2.
Participants response to question 4.
Groups
Categories
Response
Percentage %
G1
Disagreed
2
0.5
G2
Agreed
416
99.5
Total
418
Table 3.
Participants’ response to question 4 in percentages.
G1 = Group 1; G2 = Group 2.
Based on the descriptive analysis of the user’s opinion, it is concluded that restrooms should be redesigned for health safety. Figure 2 reveals the relationship between the participants that agreed and disagreed that restrooms’ redesign would improve the health safety of the users.
Figure 2.
Graphical representation of participants’ response to question 4.
Questions 3, 6, and 12 were analyzed using Welch t-test to further determine the significance of redesigning and restructuring university community restrooms for health safety. As shown in Table 4, participants’ response to question 3 reveals (t = 1.967903, df = 300; p < 0.0001) to question 6 (t = 1.99006, df = 80; p < 0.0001) and to question 12 (t = 1.97462, df = 163; p < 0.0001).
Table 4.
Summary of the Welch unpaired T-test.
4. Findings
From the participant’s opinions, visual and auditory alerts will be necessary for most of the public restrooms to enhance user’s awareness of handwashing after use.
Redesign of most restrooms was another issue raised by the respondents if proper hygiene levels must be reached for safety purposes.
Automated handwashing devices like an automated sink with soap dispenser, auto sensor water, and hand sanitizer pump dispenser were also recommended to be made available.
A redesign of the restroom doors to be touchless (auto open and close) without touch or ergonomical design (i.e., pull to go in and push to exit) as the participants felt that touching might increase the chances of contacting germs.
A high percentage of the participants also believe that the current hand dryer is unhealthy, breeds germs, and is against proper hygiene and health safety.
Respondents also mention the inclusion of hygiene training into college’s education curriculums in all levels of education.
Ergonomically redesign doors/restroom system was suggested in order to fit the operating process of the restroom to the users’ capability. This could be perfect as stated in Fasanya and Shofoluwe’s [23] finding that fitting job to worker capability improved worker performances.
4.1 Redesigning option
After a careful review of the findings, it is decided that the inclusion of auditory and visual alert sensor in the urinal bowl area and toilet compartment will improve the handwashing practice.
4.1.1 Operation process of sensor
The visual and auditory alerting signals will assist in reminding restroom users to wash their hands after use. Visual and auditory alerts have been known for being vital reminders of activity in different areas of life such as in traffic control (transportation industry). Visual and alert methods have also played important roles in many other situations relating to alerting and reminding users. It has been used in the airplane for almost everything possible, especially in alerting, reminding, and giving the passengers directions when needed. According Papastavrou and Lehto [24], visual and auditory alerts help in the detection of anticipated stimuli. This study suggested for the design shown in Figure 3 to ensure proper reliabilities and the alerts required for the safe use of the restrooms. The design is a computer-based script that senses restroom flush and gently nudges and reminds the users to wash their hands. The process involves the following.
Figure 3.
Message display.
4.1.2 Design processes
It involves designing a computer screen algorithm that will help to auto-sense sides. The machine design can be achieved by using C# combined with light and sound using sensor fusion with computer vision to sense flushing sound and press of restroom flushes. Figure 3 also shows the sample of visual message that would be displayed on the screen.
This device is an auditory and visual alert device coded with C# and with a motion and sound sensor to sense either the motion or flush sound before displaying a message as shown in Figure 3.
The visual and auditory alert system design would be placed in two locations as shown in the Figure 4—the device with the “Message Area” caption here is a LED Message display board designed and computer coded for auditory and visual alert for the users at the sound of restroom flush. The device should be a computer coded with the passive infrared (PIR) sensor to sense and detect body heat (infrared energy) and the most widely used motion sensor, at the sound of the flush. Pleasant messages are to be included in the alert to remind the users to wash their hands: messages like “Do you know handwashing hygiene increases health safety? Don’t forget to wash your hands? Washing Hands prevents from deadly diseases, etc.” The application that controls the device is suggested to be designed with C# and designed with LED message display board and passive infrared sensor. It is important for it to be both visual and auditory to accommodate visually or aurally challenged individuals.
Figure 4.
Restroom message display design.
4.2 Post analysis results
Findings from this study had led the university management to include in all restrooms hand soap dispensers and gradually work on how to restructure the rooms to be ergonomically fit for the users. From the management comments, less attention has been given to restroom designs of all things in the academic environment. Meanwhile, the outcome of this study has proved that less important things in management perspective might be a huge factor to promote health and safety of both students and the employees.
5. Discussions and conclusion
5.1 Discussions
Different studies have concluded that there are other factors affecting hand hygiene behavior. For example, Zimakoff et al. [25] concluded by identifying few other factors affecting hand hygiene such as skin irritation and dryness as the leading factors affecting handwashing in health care. The same authors affirmed that there are other possible factors not covered in the scope of the research. Likewise, in 1982, Larson and Killien concluded that it is imperative to identify factors that are the antecedents to whether the individual decides to wash one’s hands or not as they are critical in the prevention or intervention plans to improve handwashing practice. The same authors further ascertained that most emphases are placed on the importance of handwashing instead of other factors affecting people’s behavior toward handwashing compliance. The results of this study supported that there are other factors different from training people and showing people how to practice hygiene properly. Researchers are now focusing on the growing literature about the other factors affecting hand hygiene behavior.
Day by day, researchers are focusing on other factors that could affect hand hygiene behavior, none or few have looked into the structure and redesign of restrooms. This study investigated the people’s experience in the restroom, why handwashing compliance is low, and other factors, which could affect hand hygiene behavior. A significant proportion of the participants requested for restroom redesign for their health safety. A significant finding from this study is that about 83% of the participants suggested alert systems to remind restroom users to wash hands after use. The participants also reported the significance of other factors like an automated sink, soap dispenser, water dispenser, dryer devices as well as ergonomically designed doors. The participants unanimously believe that ergonomically designed door (pull and push type) would reduce touch and greatly enhance health safety. The above data results reflect restroom equipment, structure, cleanliness, and comfortability have significant effects on hand hygiene behavior. The results from this study supported other researchers who found that there are other factors affecting hand hygiene behavior, rather than just training and those factors should be focused on in order to improve handwashing practices.
5.2 Conclusion
The handwashing procedure is a little monotonous, especially for healthcare professionals, and can be frustrating or become things of no interest when relevant factors are not available and very challenging in different ramifications. The low compliance of handwashing is a significant issue around the world as reported in several literatures. Appropriate handwashing practices can reduce the risk of foodborne illness and prevent transmission of viral infections, especially those that spread through droplets from coughs and sneezes. Besides, among many other hygiene practices, poor handwashing is the most common practice among the younger generation. The message and the information about handwashing or hand hygiene has been around for over 200 years, yet the level of compliance is low as revealed from this study. Thus, this study details another factor affecting handwashing hygiene after the use of public restrooms and suggests how hand hygiene could be improved in human daily behavior. The findings of this study revealed that restroom designs and structures have significant effects on hand hygiene behavior based on participant’s opinions from the survey. Redesign to include visual and auditory alerts will be necessary for most of the public restrooms to enhance user’s awareness for handwashing after use. Findings from this study suggest for a restroom redesign to include auto-sensor soap and water dispenser, dryers, and touchless doors. Findings further revealed that inclusion of hygiene training in all college’s education curriculums at every level would encourage user’s handwashing hygiene lifestyle and behavior. The findings from this study could help identify the design structures for ensuring more compliance with handwashing hygiene and health safety practice among the public. Further research is needed in this direction to investigate how other factors aside from the aforementioned could potentially discourage individuals from making hand hygiene a daily behavior.
\n',keywords:"hygiene, human health, restroom, handwashing, ergonomics",chapterPDFUrl:"https://cdn.intechopen.com/pdfs/72308.pdf",chapterXML:"https://mts.intechopen.com/source/xml/72308.xml",downloadPdfUrl:"/chapter/pdf-download/72308",previewPdfUrl:"/chapter/pdf-preview/72308",totalDownloads:968,totalViews:0,totalCrossrefCites:0,dateSubmitted:"January 7th 2020",dateReviewed:"March 30th 2020",datePrePublished:"May 25th 2020",datePublished:"June 17th 2020",dateFinished:"May 25th 2020",readingETA:"0",abstract:"Human safety is a popular ongoing research area in personal hygiene. Researchers are mostly apprehensive about how to protect humans from different hazards in the environment. Thus, guidelines developed for good hand wash practices in the public restrooms have showed little or no impact on human behavior. This research examined hand wash acts in the public restrooms and proposed possible solutions to improve the practice. There are 427 people who participated in the study. Participant age ranged from 18 years old and upward: statistically, female, 63%; male, 35%; and unidentified, 2%. Descriptive statistics revealed 99.5% respondents approved restroom redesign for appropriate hand hygiene practice, while 49% suggested restroom device automation. Inferential statistics results on redesign with a Welsh t-test were statistically significant (t=1.967, df=300, p<0.0001; t=1.990, df=80, p<0.0001; t=1.9746, df=163, p<0.0001). Findings showed that hand hygiene guidelines and recommendations are insufficient to ensure proper promotion of hand wash practices in restrooms. This study concluded that good hand wash practices in public restrooms could be ergonomically redesigned to include a visual and auditory alert that reminds users to wash their hands after restroom usage and to include hand wash practice in school curriculum. The findings from this study could be applicable in restaurants, schools, and bars, to manage and control transmission of disease through direct hands contacted with infectious diseases in the restrooms.",reviewType:"peer-reviewed",bibtexUrl:"/chapter/bibtex/72308",risUrl:"/chapter/ris/72308",signatures:"Bankole K. Fasanya, Moruf Adegbite, Maged Mikhail and George L. 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Discussions and conclusion",level:"1"},{id:"sec_12_2",title:"5.1 Discussions",level:"2"},{id:"sec_13_2",title:"5.2 Conclusion",level:"2"}],chapterReferences:[{id:"B1",body:'Show Me the Science—How to Wash Your Hands. Handwashing. CDC. 2016. Available from: https://www.cdc.gov/handwashing/show-me-the-science-handwashing.html [Retrieved: 08 September 2019]'},{id:"B2",body:'Water, Sanitation & Environmentally-Related Hygiene. Hygiene. Healthy Water. CDC. 2016. Available from: https://www.cdc.gov/healthywater/hygiene/index.html [Retrieved: 13 September 2019]'},{id:"B3",body:'Food and Drug Administration. FDA Report on the Occurrence of Foodborne Illness Risk Factors in Selected Institutional Foodservice, Restaurant, and Retail Food Store Facility Types. 2004. Retrieved from: https://wayback.archiveit.org/7993/20170406023011/https://www.fda.gov/downloads/Food/GuidanceRegulation/RetailFoodProtection/FoodborneIllnessRiskFactorReduction/UCM423850.pdf'},{id:"B4",body:'Show Me the Science—Why Wash Your Hands? Handwashing. CDC. 2018. Available from: https://www.cdc.gov/handwashing/why-handwashing.html [Retrieved: 05 September 2019]'},{id:"B5",body:'Staub E. The Roots of Evil: The Psychological and Cultural Origins of Genocide and Other Forms of Group Violence. United Kingdom: Cambridge University Press; 1989'},{id:"B6",body:'Coppage CM. Hand Washing in Patient Care [Motion Picture]. Washington, DC: US Public Health Service; 1961'},{id:"B7",body:'Steere AC, Mallison GF. Handwashing practices for the prevention of nosocomial infections. Annals of Internal Medicine. 1975;83(5):683-690'},{id:"B8",body:'Fevero MS. CDC guideline for handwashing and hospital environmental control, 1985. Infection Control. 1986;7:231-243'},{id:"B9",body:'Hospital Infection Control Practices Advisory Committee. Recommendations for preventing the spread of vancomycin resistance. Infection Control and Hospital Epidemiology. 1995;16(2):105-113'},{id:"B10",body:'Garner J. Guideline for isolation precautions in hospitals. Infection Control and Hospital Epidemiology. 1996;17(1):54-80. DOI: 10.1017/s0195941700006123'},{id:"B11",body:'Boyce JM, Pittet D. Guideline for hand hygiene in health-care settings: Recommendations of the healthcare infection control practices advisory committee and the HICPAC/SHEA/APIC/IDSA hand hygiene task force. Infection Control and Hospital Epidemiology. 2002;23(S12):S3-S40'},{id:"B12",body:'Jang TH, Wu S, Kirzner D, Moore C, Youssef G, Tong A, et al. Focus group study of hand hygiene practice among healthcare workers in a teaching hospital in Toronto, Canada. Infection Control and Hospital Epidemiology. 2010;31(2):144-150'},{id:"B13",body:'Mazi W, Senok AC, Al-Kahldy S, Abdullah D. Implementation of the world health organization hand hygiene improvement strategy in critical care units. Antimicrobial Resistance and Infection Control. 2013;2(1):15'},{id:"B14",body:'Allegranzi B, Pittet D. Role of hand hygiene in healthcare-associated infection prevention. Journal of Hospital Infection. 2009;73(4):305-315. DOI: 10.1016/j.jhin.2009.04.019'},{id:"B15",body:'Duerink DO, Farida H, Nagelkerke NJD, Wahyono H, Keuter M, Lestari ES, et al. Preventing nosocomial infections: Improving compliance with standard precautions in an Indonesian teaching hospital. Journal of Hospital Infection. 2006;64(1):36-43'},{id:"B16",body:'Ahmed QA, Memish ZA, Allegranzi B, Pittet D. Muslim health-care workers and alcohol-based handrubs. The Lancet. 2006;367(9515):1025-1027'},{id:"B17",body:'Liu L, Johnson H, Cousens S, Perin J, Scott S, Lawn J, et al. Global, regional, and national causes of child mortality: An updated systematic analysis for 2010 with time trends since 2000. The Lancet. 2012;379(9832):2151-2161. DOI: 10.1016/s0140-6736(12)60560-1'},{id:"B18",body:'Ejemot-Nwadiaro RI, Ehiri JE, Meremikwu MM, Critchley JA. Hand washing for preventing diarrhoea. Cochrane Database of Systematic Reviews. 2008;1:1-79'},{id:"B19",body:'Aiello A, Coulborn R, Perez V, Larson E. Effect of hand hygiene on infectious disease risk in the community setting: A meta-analysis. American Journal of Public Health. 2008;98(8):1372-1381. DOI: 10.2105/ajph.2007.124610'},{id:"B20",body:'Azor-Martínez E, Cobos-Carrascosa E, Gimenez-Sanchez F, Martínez-López J, Garrido-Fernández P, Santisteban-Martínez J, et al. Effectiveness of a multifactorial handwashing program to reduce school absenteeism due to acute gastroenteritis. The Pediatric Infectious Disease Journal. 2014;33(2):e34-e39. DOI: 10.1097/inf.0000000000000040'},{id:"B21",body:'Lau CH, Springston EE, Sohn MW, Mason I, Gadola E, Damitz M, et al. Hand hygiene instruction decreases illness-related absenteeism in elementary schools: A prospective cohort study. BMC Pediatrics. 1 Dec 2012;12(1):52. DOI: 10.1186/1471-2431-12-52'},{id:"B22",body:'Bowen A, Agboatwalla M, Luby S, Tobery T, Ayers T, Hoekstra R. Association between intensive handwashing promotion and child development in Karachi, Pakistan. Archives of Pediatrics & Adolescent Medicine. 2012;166(11):1037. DOI: 10.1001/archpediatrics.2012.1181'},{id:"B23",body:'Fasanya BK, Shofoluwe M. Occupational ergonomics: Emerging approaches toward improved worker productivity and injury reduction. In: International Conference on Applied Human Factors and Ergonomics. Cham: Springer; 2018. pp. 385-395'},{id:"B24",body:'Papastavrou JD, Lehto MR. 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Cárdenas-Aguayo, M. del C. Silva-Lucero, M. Cortes-Ortiz,\nB. Jiménez-Ramos, L. Gómez-Virgilio, G. Ramírez-Rodríguez, E. Vera-\nArroyo, R. Fiorentino-Pérez, U. García, J. 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MRI is commonly used once treating brain, prostate cancers, ankle and foot. The Magnetic Resonance Imaging (MRI) images are usually liable to suffer from noises such as Gaussian noise, salt and pepper noise and speckle noise. So getting of brain image with accuracy is very extremely task. An accurate brain image is very necessary for further diagnosis process. During this chapter, a median filter algorithm will be modified. Gaussian noise and Salt and pepper noise will be added to MRI image. A proposed Median filter (MF), Adaptive Median filter (AMF) and Adaptive Wiener filter (AWF) will be implemented. The filters will be used to remove the additive noises present in the MRI images. The noise density will be added gradually to MRI image to compare performance of the filters evaluation. The performance of these filters will be compared exploitation the applied mathematics parameter Peak Signal-to-Noise Ratio (PSNR).",book:{id:"6144",slug:"high-resolution-neuroimaging-basic-physical-principles-and-clinical-applications",title:"High-Resolution Neuroimaging",fullTitle:"High-Resolution Neuroimaging - Basic Physical Principles and Clinical Applications"},signatures:"Hanafy M. Ali",authors:[{id:"213318",title:"Dr.",name:"Hanafy",middleName:"M.",surname:"Ali",slug:"hanafy-ali",fullName:"Hanafy Ali"}]},{id:"41589",doi:"10.5772/50323",title:"The Role of the Amygdala in Anxiety Disorders",slug:"the-role-of-the-amygdala-in-anxiety-disorders",totalDownloads:9671,totalCrossrefCites:4,totalDimensionsCites:28,abstract:null,book:{id:"2599",slug:"the-amygdala-a-discrete-multitasking-manager",title:"The Amygdala",fullTitle:"The Amygdala - A Discrete Multitasking Manager"},signatures:"Gina L. Forster, Andrew M. Novick, Jamie L. Scholl and Michael J. 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Particularly in the case of motor imagery BCIs, users may need several training sessions before they learn how to generate desired brain activity and reach an acceptable performance. A typical training protocol for such BCIs includes execution of a motor imagery task by the user, followed by presentation of an extending bar or a moving object on a computer screen. In this chapter, we discuss the importance of a visual feedback that resembles human actions, the effect of human factors such as confidence and motivation, and the role of embodiment in the learning process of a motor imagery task. Our results from a series of experiments in which users BCI-operated a humanlike android robot confirm that realistic visual feedback can induce a sense of embodiment, which promotes a significant learning of the motor imagery task in a short amount of time. We review the impact of humanlike visual feedback in optimized modulation of brain activity by the BCI users.",book:{id:"6610",slug:"evolving-bci-therapy-engaging-brain-state-dynamics",title:"Evolving BCI Therapy",fullTitle:"Evolving BCI Therapy - Engaging Brain State Dynamics"},signatures:"Maryam Alimardani, Shuichi Nishio and Hiroshi Ishiguro",authors:[{id:"11981",title:"Prof.",name:"Hiroshi",middleName:null,surname:"Ishiguro",slug:"hiroshi-ishiguro",fullName:"Hiroshi Ishiguro"},{id:"231131",title:"Dr.",name:"Maryam",middleName:null,surname:"Alimardani",slug:"maryam-alimardani",fullName:"Maryam Alimardani"},{id:"231134",title:"Dr.",name:"Shuichi",middleName:null,surname:"Nishio",slug:"shuichi-nishio",fullName:"Shuichi Nishio"}]}],mostDownloadedChaptersLast30Days:[{id:"29764",title:"Underlying Causes of Paresthesia",slug:"underlying-causes-of-paresthesia",totalDownloads:192666,totalCrossrefCites:3,totalDimensionsCites:7,abstract:null,book:{id:"1069",slug:"paresthesia",title:"Paresthesia",fullTitle:"Paresthesia"},signatures:"Mahdi Sharif-Alhoseini, Vafa Rahimi-Movaghar and Alexander R. 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Precise anatomical description along with a correct characterization of the component structures is essential for understanding its functions.",book:{id:"6331",slug:"hypothalamus-in-health-and-diseases",title:"Hypothalamus in Health and Diseases",fullTitle:"Hypothalamus in Health and Diseases"},signatures:"Miana Gabriela Pop, Carmen Crivii and Iulian Opincariu",authors:null},{id:"57103",title:"GABA and Glutamate: Their Transmitter Role in the CNS and Pancreatic Islets",slug:"gaba-and-glutamate-their-transmitter-role-in-the-cns-and-pancreatic-islets",totalDownloads:3478,totalCrossrefCites:3,totalDimensionsCites:9,abstract:"Glutamate and gamma-aminobutyric acid (GABA) are the major neurotransmitters in the mammalian brain. Inhibitory GABA and excitatory glutamate work together to control many processes, including the brain’s overall level of excitation. The contributions of GABA and glutamate in extra-neuronal signaling are by far less widely recognized. In this chapter, we first discuss the role of both neurotransmitters during development, emphasizing the importance of the shift from excitatory to inhibitory GABAergic neurotransmission. The second part summarizes the biosynthesis and role of GABA and glutamate in neurotransmission in the mature brain, and major neurological disorders associated with glutamate and GABA receptors and GABA release mechanisms. The final part focuses on extra-neuronal glutamatergic and GABAergic signaling in pancreatic islets of Langerhans, and possible associations with type 1 diabetes mellitus.",book:{id:"6237",slug:"gaba-and-glutamate-new-developments-in-neurotransmission-research",title:"GABA And Glutamate",fullTitle:"GABA And Glutamate - New Developments In Neurotransmission Research"},signatures:"Christiane S. Hampe, Hiroshi Mitoma and Mario Manto",authors:[{id:"210220",title:"Prof.",name:"Christiane",middleName:null,surname:"Hampe",slug:"christiane-hampe",fullName:"Christiane Hampe"},{id:"210485",title:"Prof.",name:"Mario",middleName:null,surname:"Manto",slug:"mario-manto",fullName:"Mario Manto"},{id:"210486",title:"Prof.",name:"Hiroshi",middleName:null,surname:"Mitoma",slug:"hiroshi-mitoma",fullName:"Hiroshi Mitoma"}]},{id:"35802",title:"Cross-Cultural/Linguistic Differences in the Prevalence of Developmental Dyslexia and the Hypothesis of Granularity and Transparency",slug:"cross-cultural-linguistic-differences-in-the-prevalence-of-developmental-dyslexia-and-the-hypothesis",totalDownloads:3601,totalCrossrefCites:2,totalDimensionsCites:7,abstract:null,book:{id:"673",slug:"dyslexia-a-comprehensive-and-international-approach",title:"Dyslexia",fullTitle:"Dyslexia - A Comprehensive and International Approach"},signatures:"Taeko N. Wydell",authors:[{id:"87489",title:"Prof.",name:"Taeko",middleName:"N.",surname:"Wydell",slug:"taeko-wydell",fullName:"Taeko Wydell"}]},{id:"58597",title:"Testosterone and Erectile Function: A Review of Evidence from Basic Research",slug:"testosterone-and-erectile-function-a-review-of-evidence-from-basic-research",totalDownloads:1331,totalCrossrefCites:2,totalDimensionsCites:2,abstract:"Androgens are essential for male physical activity and normal erectile function. Hence, age-related testosterone deficiency, known as late-onset hypogonadism (LOH), is considered a risk factor for erectile dysfunction (ED). This chapter summarizes relevant basic research reports examining the effects of testosterone on erectile function. Testosterone affects several organs and is especially active on the erectile tissue. The mechanism of testosterone deficiency effects on erectile function and the results of testosterone replacement therapy (TRT) have been well studied. Testosterone affects nitric oxide (NO) production and phosphodiesterase type 5 (PDE-5) expression in the corpus cavernosum through molecular pathways, preserves smooth muscle contractility by regulating both contraction and relaxation, and maintains the structure of the corpus cavernosum. Interestingly, testosterone deficiency has relationship to neurological diseases, which leads to ED. Testosterone replacement therapy is widely used to treat patients with testosterone deficiency; however, this treatment might also induce some problems. Basic research suggests that PDE-5 inhibitors, L-citrulline, and/or resveratrol therapy might be effective therapeutic options for testosterone deficiency-induced ED. Future research should confirm these findings through more specific experiments using molecular tools and may shed more light on endocrine-related ED and its possible treatments.",book:{id:"5994",slug:"sex-hormones-in-neurodegenerative-processes-and-diseases",title:"Sex Hormones in Neurodegenerative Processes and Diseases",fullTitle:"Sex Hormones in Neurodegenerative Processes and Diseases"},signatures:"Tomoya Kataoka and Kazunori Kimura",authors:[{id:"219042",title:"Ph.D.",name:"Tomoya",middleName:null,surname:"Kataoka",slug:"tomoya-kataoka",fullName:"Tomoya Kataoka"},{id:"229066",title:"Prof.",name:"Kazunori",middleName:null,surname:"Kimura",slug:"kazunori-kimura",fullName:"Kazunori Kimura"}]}],onlineFirstChaptersFilter:{topicId:"18",limit:6,offset:0},onlineFirstChaptersCollection:[{id:"81646",title:"Cortical Plasticity under Ketamine: From Synapse to Map",slug:"cortical-plasticity-under-ketamine-from-synapse-to-map",totalDownloads:15,totalDimensionsCites:0,doi:"10.5772/intechopen.104787",abstract:"Sensory systems need to process signals in a highly dynamic way to efficiently respond to variations in the animal’s environment. For instance, several studies showed that the visual system is subject to neuroplasticity since the neurons’ firing changes according to stimulus properties. This dynamic information processing might be supported by a network reorganization. Since antidepressants influence neurotransmission, they can be used to explore synaptic plasticity sustaining cortical map reorganization. To this goal, we investigated in the primary visual cortex (V1 of mouse and cat), the impact of ketamine on neuroplasticity through changes in neuronal orientation selectivity and the functional connectivity between V1 cells, using cross correlation analyses. We found that ketamine affects cortical orientation selectivity and alters the functional connectivity within an assembly. These data clearly highlight the role of the antidepressant drugs in inducing or modeling short-term plasticity in V1 which suggests that cortical processing is optimized and adapted to the properties of the stimulus.",book:{id:"11374",title:"Sensory Nervous System - Computational Neuroimaging Investigations of Topographical Organization in Human Sensory Cortex",coverURL:"https://cdn.intechopen.com/books/images_new/11374.jpg"},signatures:"Ouelhazi Afef, Rudy Lussiez and Molotchnikoff Stephane"},{id:"81582",title:"The Role of Cognitive Reserve in Executive Functioning and Its Relationship to Cognitive Decline and Dementia",slug:"the-role-of-cognitive-reserve-in-executive-functioning-and-its-relationship-to-cognitive-decline-and",totalDownloads:23,totalDimensionsCites:0,doi:"10.5772/intechopen.104646",abstract:"In this chapter, we explore how cognitive reserve is implicated in coping with the negative consequences of brain pathology and age-related cognitive decline. Individual differences in cognitive performance are based on different brain mechanisms (neural reserve and neural compensation), and reflect, among others, the effect of education, occupational attainment, leisure activities, and social involvement. These cognitive reserve proxies have been extensively associated with efficient executive functioning. We discuss and focus particularly on the compensation mechanisms related to the frontal lobe and its protective role, in maintaining cognitive performance in old age or even mitigating the clinical expression of dementia.",book:{id:"11742",title:"Neurophysiology",coverURL:"https://cdn.intechopen.com/books/images_new/11742.jpg"},signatures:"Gabriela Álvares-Pereira, Carolina Maruta and Maria Vânia Silva-Nunes"},{id:"81488",title:"Aggression and Sexual Behavior: Overlapping or Distinct Roles of 5-HT1A and 5-HT1B Receptors",slug:"aggression-and-sexual-behavior-overlapping-or-distinct-roles-of-5-ht1a-and-5-ht1b-receptors",totalDownloads:19,totalDimensionsCites:0,doi:"10.5772/intechopen.104872",abstract:"Distinct brain mechanisms for male aggressive and sexual behavior are present in mammalian species, including man. However, recent evidence suggests a strong connection and even overlap in the central nervous system (CNS) circuitry involved in aggressive and sexual behavior. The serotonergic system in the CNS is strongly involved in male aggressive and sexual behavior. In particular, 5-HT1A and 5-HT1B receptors seem to play a critical role in the modulation of these behaviors. The present chapter focuses on the effects of 5-HT1A- and 5-HT1B-receptor ligands in male rodent aggression and sexual behavior. Results indicate that 5-HT1B-heteroreceptors play a critical role in the modulation of male offensive behavior, although a definite role of 5-HT1A-auto- or heteroreceptors cannot be ruled out. 5-HT1A receptors are clearly involved in male sexual behavior, although it has to be yet unraveled whether 5-HT1A-auto- or heteroreceptors are important. Although several key nodes in the complex circuitry of aggression and sexual behavior are known, in particular in the medial hypothalamus, a clear link or connection to these critical structures and the serotonergic key receptors is yet to be determined. This information is urgently needed to detect and develop new selective anti-aggressive (serenic) and pro-sexual drugs for human applications.",book:{id:"10195",title:"Serotonin and the CNS - New Developments in Pharmacology and Therapeutics",coverURL:"https://cdn.intechopen.com/books/images_new/10195.jpg"},signatures:"Berend Olivier and Jocelien D.A. Olivier"},{id:"81093",title:"Prehospital and Emergency Room Airway Management in Traumatic Brain Injury",slug:"prehospital-and-emergency-room-airway-management-in-traumatic-brain-injury",totalDownloads:49,totalDimensionsCites:0,doi:"10.5772/intechopen.104173",abstract:"Airway management in trauma is critical and may impact patient outcomes. Particularly in traumatic brain injury (TBI), depressed level of consciousness may be associated with compromised protective airway reflexes or apnea, which can increase the risk of aspiration or result in hypoxemia and worsen the secondary brain damage. Therefore, patients with TBI and Glasgow Coma Scale (GCS) ≤ 8 have been traditionally managed by prehospital or emergency room (ER) endotracheal intubation. However, recent evidence challenged this practice and even suggested that routine intubation may be harmful. This chapter will address the indications and optimal method of securing the airway, prehospital and in the ER, in patients with traumatic brain injury.",book:{id:"11367",title:"Traumatic Brain Injury",coverURL:"https://cdn.intechopen.com/books/images_new/11367.jpg"},signatures:"Dominik A. Jakob, Jean-Cyrille Pitteloud and Demetrios Demetriades"},{id:"81011",title:"Amino Acids as Neurotransmitters. The Balance between Excitation and Inhibition as a Background for Future Clinical Applications",slug:"amino-acids-as-neurotransmitters-the-balance-between-excitation-and-inhibition-as-a-background-for-f",totalDownloads:19,totalDimensionsCites:0,doi:"10.5772/intechopen.103760",abstract:"For more than 30 years, amino acids have been well-known (and essential) participants in neurotransmission. They act as both neuromediators and metabolites in nervous tissue. Glycine and glutamic acid (glutamate) are prominent examples. These amino acids are agonists of inhibitory and excitatory membrane receptors, respectively. Moreover, they play essential roles in metabolic pathways and energy transformation in neurons and astrocytes. Despite their obvious effects on the brain, their potential role in therapeutic methods remains uncertain in clinical practice. In the current chapter, a comparison of the crosstalk between these two systems, which are responsible for excitation and inhibition in neurons, is presented. The interactions are discussed at the metabolic, receptor, and transport levels. Reaction-diffusion and a convectional flow into the interstitial fluid create a balanced distribution of glycine and glutamate. Indeed, the neurons’ final physiological state is a result of a balance between the excitatory and inhibitory influences. However, changes to the glycine and/or glutamate pools under pathological conditions can alter the state of nervous tissue. Thus, new therapies for various diseases may be developed on the basis of amino acid medication.",book:{id:"10890",title:"Recent Advances in Neurochemistry",coverURL:"https://cdn.intechopen.com/books/images_new/10890.jpg"},signatures:"Yaroslav R. Nartsissov"},{id:"80821",title:"Neuroimmunology and Neurological Manifestations of COVID-19",slug:"neuroimmunology-and-neurological-manifestations-of-covid-19",totalDownloads:41,totalDimensionsCites:0,doi:"10.5772/intechopen.103026",abstract:"Infection with SARS-CoV-2 is causing coronavirus disease in 2019 (COVID-19). Besides respiratory symptoms due to an attack on the broncho-alveolar system, COVID-19, among others, can be accompanied by neurological symptoms because of the affection of the nervous system. These can be caused by intrusion by SARS-CoV-2 of the central nervous system (CNS) and peripheral nervous system (PNS) and direct infection of local cells. In addition, neurological deterioration mediated by molecular mimicry to virus antigens or bystander activation in the context of immunological anti-virus defense can lead to tissue damage in the CNS and PNS. In addition, cytokine storm caused by SARS-CoV-2 infection in COVID-19 can lead to nervous system related symptoms. Endotheliitis of CNS vessels can lead to vessel occlusion and stroke. COVID-19 can also result in cerebral hemorrhage and sinus thrombosis possibly related to changes in clotting behavior. Vaccination is most important to prevent COVID-19 in the nervous system. There are symptomatic or/and curative therapeutic approaches to combat COVID-19 related nervous system damage that are partly still under study.",book:{id:"10890",title:"Recent Advances in Neurochemistry",coverURL:"https://cdn.intechopen.com/books/images_new/10890.jpg"},signatures:"Robert Weissert"}],onlineFirstChaptersTotal:17},preDownload:{success:null,errors:{}},subscriptionForm:{success:null,errors:{}},aboutIntechopen:{},privacyPolicy:{},peerReviewing:{},howOpenAccessPublishingWithIntechopenWorks:{},sponsorshipBooks:{sponsorshipBooks:[],offset:0,limit:8,total:null},allSeries:{pteSeriesList:[],lsSeriesList:[],hsSeriesList:[],sshSeriesList:[],testimonialsList:[]},series:{item:{id:"24",title:"Sustainable Development",doi:"10.5772/intechopen.100361",issn:null,scope:"
\r\n\tTransforming our World: the 2030 Agenda for Sustainable Development endorsed by United Nations and 193 Member States, came into effect on Jan 1, 2016, to guide decision making and actions to the year 2030 and beyond. Central to this Agenda are 17 Goals, 169 associated targets and over 230 indicators that are reviewed annually. The vision envisaged in the implementation of the SDGs is centered on the five Ps: People, Planet, Prosperity, Peace and Partnership. This call for renewed focused efforts ensure we have a safe and healthy planet for current and future generations.
\r\n
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\r\n\tThis Series focuses on covering research and applied research involving the five Ps through the following topics:
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\r\n\t1. Sustainable Economy and Fair Society that relates to SDG 1 on No Poverty, SDG 2 on Zero Hunger, SDG 8 on Decent Work and Economic Growth, SDG 10 on Reduced Inequalities, SDG 12 on Responsible Consumption and Production, and SDG 17 Partnership for the Goals
\r\n
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\r\n\t2. Health and Wellbeing focusing on SDG 3 on Good Health and Wellbeing and SDG 6 on Clean Water and Sanitation
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\r\n\t3. Inclusivity and Social Equality involving SDG 4 on Quality Education, SDG 5 on Gender Equality, and SDG 16 on Peace, Justice and Strong Institutions
\r\n
\r\n\t
\r\n
\r\n\t4. Climate Change and Environmental Sustainability comprising SDG 13 on Climate Action, SDG 14 on Life Below Water, and SDG 15 on Life on Land
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\r\n\t5. Urban Planning and Environmental Management embracing SDG 7 on Affordable Clean Energy, SDG 9 on Industry, Innovation and Infrastructure, and SDG 11 on Sustainable Cities and Communities.
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\r\n\tThe series also seeks to support the use of cross cutting SDGs, as many of the goals listed above, targets and indicators are all interconnected to impact our lives and the decisions we make on a daily basis, making them impossible to tie to a single topic.
",coverUrl:"https://cdn.intechopen.com/series/covers/24.jpg",latestPublicationDate:"May 23rd, 2022",hasOnlineFirst:!0,numberOfPublishedBooks:0,editor:{id:"262440",title:"Prof.",name:"Usha",middleName:null,surname:"Iyer-Raniga",slug:"usha-iyer-raniga",fullName:"Usha Iyer-Raniga",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRYSXQA4/Profile_Picture_2022-02-28T13:55:36.jpeg",biography:"Usha Iyer-Raniga is a professor in the School of Property and Construction Management at RMIT University. Usha co-leads the One Planet Network’s Sustainable Buildings and Construction Programme (SBC), a United Nations 10 Year Framework of Programmes on Sustainable Consumption and Production (UN 10FYP SCP) aligned with Sustainable Development Goal 12. The work also directly impacts SDG 11 on Sustainable Cities and Communities. She completed her undergraduate degree as an architect before obtaining her Masters degree from Canada and her Doctorate in Australia. Usha has been a keynote speaker as well as an invited speaker at national and international conferences, seminars and workshops. Her teaching experience includes teaching in Asian countries. She has advised Austrade, APEC, national, state and local governments. She serves as a reviewer and a member of the scientific committee for national and international refereed journals and refereed conferences. She is on the editorial board for refereed journals and has worked on Special Issues. Usha has served and continues to serve on the Boards of several not-for-profit organisations and she has also served as panel judge for a number of awards including the Premiers Sustainability Award in Victoria and the International Green Gown Awards. Usha has published over 100 publications, including research and consulting reports. Her publications cover a wide range of scientific and technical research publications that include edited books, book chapters, refereed journals, refereed conference papers and reports for local, state and federal government clients. She has also produced podcasts for various organisations and participated in media interviews. She has received state, national and international funding worth over USD $25 million. Usha has been awarded the Quarterly Franklin Membership by London Journals Press (UK). Her biography has been included in the Marquis Who's Who in the World® 2018, 2016 (33rd Edition), along with approximately 55,000 of the most accomplished men and women from around the world, including luminaries as U.N. Secretary-General Ban Ki-moon. In 2017, Usha was awarded the Marquis Who’s Who Lifetime Achiever Award.",institutionString:null,institution:{name:"RMIT University",institutionURL:null,country:{name:"Australia"}}},editorTwo:null,editorThree:null},subseries:{paginationCount:0,paginationItems:[]},overviewPageOFChapters:{paginationCount:0,paginationItems:[]},overviewPagePublishedBooks:{paginationCount:0,paginationItems:[]},openForSubmissionBooks:{},onlineFirstChapters:{},subseriesFiltersForOFChapters:[],publishedBooks:{paginationCount:0,paginationItems:[]},subseriesFiltersForPublishedBooks:[],publicationYearFilters:[],authors:{}},subseries:{item:{id:"23",type:"subseries",title:"Computational Neuroscience",keywords:"Single-Neuron Modeling, Sensory Processing, Motor Control, Memory and Synaptic Pasticity, Attention, Identification, Categorization, Discrimination, Learning, Development, Axonal Patterning and Guidance, Neural Architecture, Behaviours and Dynamics of Networks, Cognition and the Neuroscientific Basis of Consciousness",scope:"Computational neuroscience focuses on biologically realistic abstractions and models validated and solved through computational simulations to understand principles for the development, structure, physiology, and ability of the nervous system. This topic is dedicated to biologically plausible descriptions and computational models - at various abstraction levels - of neurons and neural systems. This includes, but is not limited to: single-neuron modeling, sensory processing, motor control, memory, and synaptic plasticity, attention, identification, categorization, discrimination, learning, development, axonal patterning, guidance, neural architecture, behaviors, and dynamics of networks, cognition and the neuroscientific basis of consciousness. Particularly interesting are models of various types of more compound functions and abilities, various and more general fundamental principles (e.g., regarding architecture, organization, learning, development, etc.) found at various spatial and temporal levels.",coverUrl:"https://cdn.intechopen.com/series_topics/covers/23.jpg",hasOnlineFirst:!1,hasPublishedBooks:!0,annualVolume:11419,editor:{id:"14004",title:"Dr.",name:"Magnus",middleName:null,surname:"Johnsson",slug:"magnus-johnsson",fullName:"Magnus Johnsson",profilePictureURL:"https://mts.intechopen.com/storage/users/14004/images/system/14004.png",biography:"Dr Magnus Johnsson is a cross-disciplinary scientist, lecturer, scientific editor and AI/machine learning consultant from Sweden. \n\nHe is currently at Malmö University in Sweden, but also held positions at Lund University in Sweden and at Moscow Engineering Physics Institute. \nHe holds editorial positions at several international scientific journals and has served as a scientific editor for books and special journal issues. \nHis research interests are wide and include, but are not limited to, autonomous systems, computer modeling, artificial neural networks, artificial intelligence, cognitive neuroscience, cognitive robotics, cognitive architectures, cognitive aids and the philosophy of mind. \n\nDr. Johnsson has experience from working in the industry and he has a keen interest in the application of neural networks and artificial intelligence to fields like industry, finance, and medicine. \n\nWeb page: www.magnusjohnsson.se",institutionString:null,institution:{name:"Malmö University",institutionURL:null,country:{name:"Sweden"}}},editorTwo:null,editorThree:null,series:{id:"14",title:"Artificial Intelligence",doi:"10.5772/intechopen.79920",issn:"2633-1403"},editorialBoard:[{id:"13818",title:"Dr.",name:"Asim",middleName:null,surname:"Bhatti",slug:"asim-bhatti",fullName:"Asim 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University",institutionURL:null,country:{name:"Turkey"}}}]},onlineFirstChapters:{paginationCount:0,paginationItems:[]},publishedBooks:{paginationCount:0,paginationItems:[]},testimonialsList:[{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"}}}},{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 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