Circuit parameters for the evaluation of compensation techniques.
\r\n\tAnother area of uncertainty is the potential effect following the suspension/ interruption of some chronic therapies in defined clinical situations.
\r\n\r\n\t
\r\n\tThe purpose of this text is to highlight both the positive and negative aspects of polytherapy in elderly subjects and when it should be necessary to take into consideration the regulated suspension (deprescribing) of one or more drugs. In particular, it would be important reducing or avoiding the prevalence of negative effects, which can even accelerate cognitive or physical decay, leading sometimes to premature death.
There are currently many methods, links and approaches for wireless power transmission. Each of the available solutions is characterized by its advantages and disadvantages, which result in their application [1, 2, 3].
Inductive coupling is currently the most widely used method of wireless energy transfer. This method works on the principle of an air transformer with a tight magnetic coupling of the primary and secondary windings. The energy exchange between two or more coils takes place by means of an inductive current
Resonance compensation is a specific case of inductive coupling. Resonant compensation is used in cases where it is necessary to achieve impedance dependence on frequency. Resonant compensation is provided by adding a capacitive member to the primary as well as the secondary coil. After applying a magnetic field with a suitably selected frequency, the phenomenon of mutual interference of the impedance of the coil and the capacitor occurs, which ideally ensures zero phase shift against the current flowing through the primary coil. For resonant compensation, there are four configurations of the primary and secondary side of the wireless charging system [5, 6].
The system using resonant coupling fully compensates for the scattering fields of the coupling coils, thus significantly extending the working distance while maintaining high energy transfer efficiency. Thanks to its advantages, resonant coupling is used mainly in the field of electromobility, where it allows charging with high power and in the case of a variable load, it can be easily frequency-adjusted for optimal efficiency [7, 8].
Energy transmission through capacitive coupling is currently used relatively little due to limitations on the transmission distance, which is limited by the level of tenths of a millimeter. This method is mainly used for charging consumer electronics such as tablets, laptops and more. They also have great potential in the field of medicine for charging various implants. Capacitive coupling is a phenomenon occurring between all conductive objects, i.e. between systems between which there is a mutual difference of potentials and between them there is an environment with a positive dielectric constant (permittivity) [9, 10, 11].
This work aims to point out the main design issues related to wireless power transmission and demonstrate their operational characteristics. An important aspect in this area is undoubtedly interaction of living organisms with a strong electromagnetic field, and therefore it is necessary to pay attention also legislation and hygiene standards [12, 13, 14, 15]. Another goal is to provide a clear mathematical description of the system using intuitive methods for circuit analysis. Mathematical models must consider, in addition to the coupling itself, the inverters (inverter and rectifier) on the primary and secondary side of the system. An equally important goal of the work is experimental verification of all achieved theoretical conclusions. For this purpose, it was necessary to develop a prototype of a WPT charging system capable to supply sufficient power needed to charge conventional electric car. The text is supplemented by accompanying graphics that illustrates efficiency characteristics and also analysis of the spatial distribution of the electromagnetic field at different states of the system.
There are four basic configurations of the primary and secondary side of the WPT system to realize resonant compensation of the leakage inductance [16, 17, 18]. This chapter focuses on investigating the properties of possible compensation methods, which include serial-serial, serial-parallel, parallel-serial, parallel–parallel. The analysis of individual configurations is further provided, while and examples of characteristics derivations are based on the circuit parameters listed in Table 1.
Serial-series compensation uses two external capacitors
Parameter | Value | |
---|---|---|
0.45 Ω | ||
0.45 Ω | ||
145.6 μH | ||
145.6 μH | ||
3.1 nF | ||
3.1 nF | ||
0÷0.1 | ||
Series compensation: 5÷200 Ω | Parallel comp.: 5 Ω÷2.5 kΩ | |
100 V |
Circuit parameters for the evaluation of compensation techniques.
Simplified equivalent circuit for series–series compensation, left – Circuit with initial variables, right – Circuit suited for loop current analysis.
The system is powered by an inverter with a rectangular voltage profile with amplitude um1, and therefore the circuit must be described by a system of integrodifferential equations forming a full-fledged dynamic model.
All models will be derived for the fundamental harmonic and therefore we can use Eq. (1) to describe the model, while the inverter voltage can be considered in the form of (2).
The solution we get loop currents, from which it is possible to further determine all operating variables of the system (3).
For a better idea, we draw the efficiency and power on the load depending on the frequency and the coupling factor, respectively the load. This creates two pairs of maps in which two functions are plotted separately:
The first map will consider a constant load, which will be set as optimal for the working distance corresponding to
The resulting maps are shown in Figure 2.
Dependency of output power (left) and system efficiency (right) on frequency and power transfer distance for S-S compensation.
Serial-parallel compensation uses two resonant capacitors connected in series with a coupling coil on the primary side and in parallel on the secondary side (Figure 3). In the left part you can see the diagram for the dynamic model and in the right part its simplification for the supply of the harmonic course of the voltage.
Simplified equivalent circuit for series–parallel compensation, left – Circuit with initial variables, right – circuit suited for loop current analysis.
Unlike the previous circuit, it is now necessary to compile three equations of three unknowns. The integrodifferential form is given in the (6).
For the calculation by the loop current method, the equations take the form (7).
The optimal load is then given by the Eq. (8)
The resulting waveforms are graphically summarized in Figure 4.
Dependency of output power (left) and system efficiency (right) on frequency and power transfer distance for S-P compensation.
Parallel–series compensation is practically only like the previous variant, which uses two resonant capacitors connected in parallel with the coupling coil on the primary side and in series on the secondary side. The circuit model is apparent from Figure 5.
Simplified equivalent circuit for parallel - series compensation, left – Circuit with initial variables, right – Circuit suited for loop current analysis.
As in the previous case, it is enough to compile three equations of three unknowns for the description (9).
The equations below for the calculation by the loop method can be expressed as (10).
From the above equations we again obtain the courses of all-important operating variables, shown in Figure 5. As in the previous case, the system achieves maximum efficiency at the optimized load (
Dependency of output power (left) and system efficiency (right) on frequency and power transfer distance for P-S compensation.
Parallel–parallel compensation uses two resonant capacitors connected in parallel to both coupling coils. The circuit model can be seen in Figure 7.
Simplified equivalent circuit for parallel - parallel compensation, left – Circuit with initial variables, right – Circuit suited for loop current analysis.
Unlike previous models, in this case it is necessary to compile four equations with four unknowns, the integrodifferential form is represented by the Eqs. (11).
After stabilization we can rewrite the equations into the form (12).
Graphical interpretations of the characteristics are shown in Figure 8.
Dependency of output power (left) and system efficiency (right) on frequency and power transfer distance for P–P compensation.
Based on the above results, we can compile a table that compares the key properties of individual compensation methods (Table 2). In the evaluation, we consider a system operating to the optimal load at a distance corresponding to the coupling factor
Source output type | current | voltage | voltage | Current |
Power transfer ability | higher | higher | lower | lower |
Max power and efficiency overlap | No | No | Partial | Partial |
Optimum load value | lower | higher | lower | higher |
Frequency sensitivity | higher | higher | lower | lower |
Comparisons of key attributes of individual compensation techniques.
Serial-to-series compensation acts as a current source over the monitored operating distance range, allowing higher power to be delivered to the load compared to other topologies. The disadvantage is the minimum overlap of work areas with maximum system performance and efficiency.
Serial-parallel compensation in this case does not bring any significant operational benefits, the only difference lies in the higher values of the optimal load. Unlike the previous solution, the circuit acts as a voltage source.
Parallel–series compensation offers partial overlap of work areas with maximum performance and efficiency. However, the theoretically achievable transmitted power values are significantly lower compared to the two previous configurations. The circuit has a voltage output and is much less sensitive to frequency detuning.
Parallel–parallel compensation offers current output with better coverage of areas of maximum power and efficiency along with better frequency stability. However, the transmitted powers are very low, as with parallel–series compensation.
In the previous chapter, the principal characteristics regarding basic modifications of the main circuits for wireless power systems were derived and described. All models, in some form, use concentrated parameters of spare electrical circuits. These parameters can be determined basically in two ways, i.e. by calculation and by measurement, while the measurement can be used only if the analyzed system already physically exists. On the other side the calculations offer the possibility of optimization within design procedure.
Within next text, the systematic analytical procedure for calculation of key parameters of coupling elements for wireless power transfer is described, whereby the application area for any compensation technique can be considered here.
In practice, circular or spiral coils are most often used for high-frequency purposes. The reason is the high gradients of the electric field, which arise on all structural edges of the coil in the case of parallel resonance. These gradients significantly worsen the quality factor and thus the operating characteristics of the resulting system [20, 21].
The mutual inductance of different clusters of air coils of spiral shape can be based on the application of the analytical rule for the magnetic vector potential in cylindrical coordinates (13).
The resulting relationship is based on the direct application of Biot-Savart’s law. In technical practice, these integrals are abundant, and therefore considerable attention has been paid to their enumeration in the past. The literature defines three basic types of these (elliptic) integrals, which can be combined with each other and easily converted to any special case.
The Eq. (14) was determined based on Eq. (13).
Where
Module of these integrals is determined using (16).
The derived relations correspond to a simplified geometry, where only a coaxial arrangement is considered [22]. In order to be able to calculate the mutual inductance of the coils of general geometry and arrangement, we must introduce the possibility of deflection, see Figure 9 left.
Displacement of coil’s turns and presentation of the situation for determination of mutual inductance for circular coils.
For this special case, the procedure for modifying the previous equations was indicated in [22, 23]. For the mutual inductance of the two turns from Figure 9 (left) we can write according to Figure 9 (right) next Eq. (17).
where
and then
Both coils have one or more turns, and since the equations derived above apply only to the arrangement of simple loops, it is not possible to apply them directly. The calculation is divided into
As mentioned above, spiral-shaped coils are rather used for high-frequency applications, while rectangular or square-shaped coils are suitable for applications operating at lower frequencies. On the one hand, there are no electric field gradients, the coupling is rather inductive, and on the other hand we try to make maximum use of the built-up areas to maximize the coupling factor between the coils. As in the previous case, Biot-Savart’s law can be applied here as well.
However, since it is not a circular coil, the advantages of the cylindrical coordinate system cannot be used, and the calculation is considerably complicated. To avoid confusing relationships, we will only consider the coaxial arrangement of two coils. These can have different geometries and different numbers of turns.
Figure 10 shows the real and simplified geometry of the coil, on which the derivation of the calculations will be performed. As can be seen in the figure on the left (Figure 10), the actual turns have different lengths at the same position, making the whole arrangement asymmetrical. The analytical solution of the field would then be very complicated and quite confusing.
Real (left) and simplified (right) geometry of the coil with rectangular shape.
Thanks to the equivalent replacement of individual turns with concentric rectangles/squares, we are able to solve the magnetic field around the coil relatively easily and analytically. Figure 11 indicates the relative position of two coils of different dimensions and number of turns spaced by a length z.
Simplified situation for determination of mutual inductance between rectangular coils.
Let us now focus on the i-th turn of the lower coil and the j-th turn of the upper coil. The magnetic field passing through the upper coil (excited by the lower coil) can be calculated from (21), where Biz is the induction of the magnetic field in the z-axis.
Furthermore, we can use Biot-Savart’s law to determine the increment of the BCD magnetic field from the current-carrying segment of the i-th turn as:
An if applicable next equation:
For z-component of BCD induction we can derive (24)
For the total coupled magnetic flux with CD segment, we can write integral in form of (25)
As shown in [24], although the solution of the integral (25) is more complicated, we obtain a purely analytical relation (26).
In relation (26) it is still necessary to substitute substitution (27).
The magnetic flux from the other segments (AB, BC and DA) can be easily determined using the same relations. For example, to calculate the segment BC, it is enough to swap ai with bi and cj with dj in (26). Due to the symmetry, the Eq. (28) will apply.
And because in the case of a unity current considering mutual inductance between the i-th and j-th turns next equation is valid (29)
the total mutual inductance of both coils is based on (30).
To calculate the intrinsic inductance of a planar coil, it is possible to find simple approximation relations, which are suitable for consequent mathematical derivations. However, their big disadvantage is only an approximate calculation with an often-indeterminate error. In addition, the relationships apply only to coils with an equilateral plan
Here, for p, the turn’s filling factor on the coil surface and DAVG is represented as the mean winding diameter.
In Table 3, the coefficients depending on the approximated coil geometry are calculated (Figure 12). The coefficients
1 | 2.46 | 0 | 0.2 | |
1.27 | 2.07 | 0.18 | 0.13 | |
1.09 | 2.23 | 0 | 0.17 | |
1.07 | 2.29 | 0 | 0.19 |
Estimated coefficients for identification of the shape of planar coil.
Allowed degenerations of the coil’s geometry for calculation of inductance using
The magnetic coupling between two coils is formed by a magnetic field, which is generated by a transmitting coil. For many reasons, this array can never be coupled to the receiving coil in its full size, and the larger the array, the better the coupling is achieved. This phenomenon is described by the so-called coupling factor
Time-varying electromagnetic field around the system of coupling coils.
For example, in S-S compensation, the currents flowing through the primary and secondary windings are time-shifted by 90 electrical degrees. While at the instant
We will explain some relationships on a simple example, in which we determine the coupling factor of two coaxially placed coils of circular shape with planar design. We will perform the calculation on three similar geometries (Figure 12 left), where the first pair of coils will have an inner diameter
As shown in Figure 14 (left), changing the distance of the coils, the coupling factor
Dependency of coupling factor on the geometrical properties of the coil and mutual distance (left) and mutual radial displacement (right).
For the capacitance between two turns with mean radius
If we have a coil with
Further to the pattern of Figure 12 to the left we denote the outer diameter
The geometric arrangement, according to which (36) can be easily applied, can be seen in Figure 15.
Situation of the coil’s turn placement for the calculation of parasitic capacitance.
Unlike high-frequency systems, at lower operating frequencies, ropes with insulated conductors are used almost exclusively. The reason is the lower influence of parasitic capacitances and especially the better current utilization of the coil.
The series resistance of the coil is one of the most critical parameters of the system with the greatest influence on its operational efficiency and it is therefore very important to know this value as accurately as possible. We can start with the general relation for resistance according to (37).
So far, we will not consider temperature or frequency dependences. While the effective area of the conductor S depends only on the current load, the length l already depends on the geometric shape of the coil. As mentioned earlier, spiral planar coils of solid conductor are more suitable for high frequency applications.
In this approximation, we will only talk about coils wound with a copper conductor of circular cross-section. These with their shape most closely resemble parts of the Archimedean spiral, where regarding Figure 9 on the right we can denote the inner radius as
The length of the spiral thus described can be determined by integration (39)
However, the disadvantage remains the fact that the integral (39) cannot be solved analytically. It is therefore necessary to integrate numerically for the calculation. It is also possible to use an approximation relation for an approximate calculation
or simplification by means of an average radius, see (41). The calculation is then very fast and convenient.
In addition, high-frequency applications require winding of a solid conductor to reduce the parasitic capacitance of the coil. Therefore, if we consider the effect of the skin effect, we can adjust (37) to the shape (44) for a conductor with radius
The coil has rectangular turns to achieve maximum inductance (Figure 16). If we denote the external dimensions of the coil by the letters a and b and consider the spacing between the individual turns
Rectangular coil identification for the calculation of parasitic resistance.
Furthermore, if we choose an insulated RF cable with wires whose diameter is much smaller than the penetration depth
In all the cases described, the turns are evenly distributed in one layer with a constant
If we use a cable made of
To illustrate, we will analyze the following geometry. We consider a square coil with an outer edge of length
Nomogram for the calculation of the optimal number of litz wire.
By further increase of the number of wires, we therefore only increase the current possibilities of the coil.
As the number of wires increases, the DC resistance
The condition is met just when it applies
After substituting, we get the value
The most general definition of the quality factor is based on the ratio of accumulated and lost energy in the investigated passive component. For AC supply we can write (50), where the influence of the electric field prevails in the case of a capacitor and the influence of the magnetic field in the case of a coil.
If we consider an ideal coil (R-L circuit) without parasitic capacitance, we get a quality factor such as
For more complicated circuits, such as components with parasitic effects, we can also use the relation to calculate the quality factor
The first part of the result of Eq. (52) corresponds to the quality factor of the individual coil, the second part then respects the effect of parasitic capacitance between the turns. A closer look reveals that there is a frequency at which both parts are equal and (52) gives zero result. This frequency is often referred to as the coil’s own resonant frequency
The situation is indicated in Figure 18 on the right, where the dependency of the quality factor and the character of the resulting reactance on the frequency is plotted for selected values of the parasitic capacity of the inductance and the series resistance of the coil (
Parasitic components of the coil and the quality factor characteristic.
Electrical engineers responsible for the design of the wireless transfer chargers must consider standard grid network connection during design process. Because many issues are nowadays address on the quality of the supply grid, the main goal during design of any power electronic system is to achieve the best performance related to the power factor parameter at any power consumption of the system. In addition to this fact, it is also required to have fully symmetrical 3-phase current with as low total harmonic distortion as possible [25, 26, 27, 28].
Regarding above mentioned facts, each power electronic system, which must undergo strict normative given on the qualitative indicators of the grid variables, must be equipped with input active or passive power factor corrector (PFC) and total harmonic distortion correction (THDC). These blocks are consequently followed by diode rectifier, dc/dc converter (step-up or step-down) and the voltage source inverter. Such power electronic system configuration is robust and verified by many similar applications (mostly power supplies and battery chargers). The main negative drawback of such concept lies in higher price and build-in dimensions along with the increase in power rating. This topology should therefore be recommended for low or medium power WPT chargers (Figure 19 – blue blocks).
Power electronics configuration on the primary side of the wireless power charger indicating differences related to the level of the power transfer.
Second group of WPT chargers considering the value of power delivery is medium to high power concepts. Here it is recommended to use the configuration composed of input filter (inductive – designed as distribution transformer for example), followed by the active PFC/THDC rectifier supplying the voltage source inverter (VSI). For both cases (low or high power) the VSI is sourcing primary/transmitting coil with relevant compensation. This configuration of power electronic system (Figure 19 – orange blocks) is providing low ripple input current with sinusoidal character, low THDi, excellent power factor and controllable output voltage. Therefore, it is not required to implement another dc/dc converter stage within the system [29, 30, 31].
The recommended topologies are summarized in Figure 19 according to system dedicated power level.
The concept of power electronic system for the secondary side also differs based on the type of the load, and level of the power delivery. Basically, it consists of secondary side coil equipped by relevant compensation, passive or active rectifier and dc/dc converter stage providing required functionality of the charger.
Finally, the system connection to the grid considering all the power levels established as WPT categories by SAE TIR J2954 is seen in conceptual layout shown in Figure 20, valid especially for central Europe [32, 33, 34, 35].
WPT system categories – Connection to the grid.
A more detailed example above described solution, which could meet all necessary technical requirements on high power applications and simultaneously having excellent operational properties, is seen in Figure 21.
Recommended system configuration for high power application.
Here the distribution transformer is presented as the grid source, followed by active rectifier, which is responsible for regulation of PF and THDi. Then full bridge inverter is used as VSI and supplies primary side coupling section.
The secondary side of the system shown in Figure 21 is drawn in more detail in Figure 22. The secondary side coupling system is followed by full-bridge diode rectifier with filtering capacitor CS. Then the dc/dc step-down converter (SD) providing required charging algorithm (mostly CC&CV) is supplying the on-board battery pack.
Recommended system configuration of secondary side for high power application.
Previously described concepts are representing the mostly used configurations of power electronic systems required for the design of the wireless power chargers suited for industrial and/or automotive applications.
The most important parameter in the design of coupling coils is undoubtedly the product of quality factors
Proposed coupling coil (left) and its magnetic field (right).
Regarding the available conductor cross-sections, a copper wire (2200 mutually insulated conductors) with a total cross-section of
The coil has 22 turns, the calculation parameters being as follows. The self-inductance has a value
In this case, we will focus on the WPT 1 category with an output of 3.7 kW. The experimental workplace consists of a programmable power supply, electronic load, precision power analyzer, oscilloscope, input inverter, output rectifier, additional resistors and the compensated LC circuit WPT itself. The measuring workplace is connected according to the functional diagram, see Figure 24. The determining factor in the selection of power components was the ability to work with a switching frequency from 200 kHz upwards. For this reason, a solution based entirely on SiC elements was chosen. The inverter is built on 1200 V JFET modules FF45R12J1W1_B11 (Infineon) with a type current of 45 A. Due to the low values of switching times of these modules, which are actually in the order of tens of nanoseconds, it is possible to minimize the effect of inverter dead times. The rectifier is based on a 1200 V diode SiC module APTDC20H1201G (Microsemi) with a type current of 20 A.
Block diagram of the laboratory experimental set-up.
On the primary side, a total of three quantities are measured with an oscilloscope. Probe “a” (THDP 0200) measures the output voltage of the inverter, probe “b” (current probe TCP 404 XL and amplifier TCPA 400) measures the primary current and probe “c” (P6015A) senses the voltage on the compensation capacitor. The secondary side is not measured by the oscilloscope at all in this configuration. Also, no resistors are connected here, and the system works directly into the ZS 7080. The applied oscilloscopic measurements on the primary side are rather indicative and do not serve to calculate the efficiency [35, 36, 37].
Figure 25 shows an oscillograph at a load power of 2678 W. The purple waveform represents the inverter output voltage, the light blue waveform the primary current waveform, and the blue waveform represents the voltage on the primary compensation capacitor (scale 1: 1000). The real elements (influenced by parasitics) of the WPT system are the main reason why the phase shift of voltage and current is non-zero (according to theoretical assumptions it should be close to zero).
Time waveforms of the primary side of tested WPT system during full load operation.
A comparison of power (Figure 26) and efficiency (Figure 27) shows that the analytical models accurately describe the behavior of the system in a wide range of frequencies and loads.
Output power characteristic in dependency on load and operation frequency for measurement (left) and simulation (right).
Efficiency characteristic in dependency on load and operation frequency for measurement (left) and simulation (right).
Although the current system achieves very high efficiency even over long working distances, it is unsatisfactory due to hygienic limits and standards for EV charging. The main weaknesses are mainly the high switching frequency and the large intensities of the EM field. The magnetic field in the vicinity of both (optimally coupled) coils at a transmitted power of approx. 4000 W is plotted in Figure 28. The distribution of the field changes over time, and therefore each time point must be evaluated separately.
Magnetic induction around system of unshielded coils.
The picture shows a large scattering of the field into the surroundings, which must be avoided. Exact induction values at a specific distance from the center of the coils can be obtained by introducing a spherical surface to which the EM field results are mapped. The radius of this area must be defined regarding the dimensions of the vehicle and the location of the coupling coils on its chassis. The key is especially the space in which exposed persons can normally occur. For practical reasons, therefore, it does not make sense to monitor the magnetic induction near both coils. For the sake of clarity, we state here (see Figure 28) the magnitude of induction on the sphere surface with a radius of 450 mm at the time (
Shielding can be realized by a matrix arrangement of ferrite cores lying on the back sides of both coils. The resulting magnetic field is directed into the main coupling space, while the interior of the vehicle remains protected. The material of the cores must correspond to the operating frequency and especially to the saturation at full load. Material N87 with relative permeability >1450 and operating frequency up to 500 kHz was selected for prototype. The size of the cores is 20x30x3 mm. Due to the high price and weight of the ferrite shield, it is reasonable to lighten its resulting pattern (not to occupy the full area of the coils). The finite element method will be used for this enabling to determine the intrinsic and mutual inductances of coupling coils, ferrite saturation and losses for any arrangement of ferrite cores.
Shielding consists of two functional elements (steps). The first is a ferrite array (plate) that holds the maximum amount of coupled flux and directs it for better bonding to the second coil. The second degree of shielding is an aluminum plate offset over a ferrite field. In the case of supersaturation of the ferrite core, this creates eddy currents that keep the field in the active space of both coils. The situation is indicated in Figure 29 (left), the ferrite barrier (core) is drawn in gray. The aluminum shield is then shown by a solid plate near the ferrite core.
Proposed electromagnetic shielding (left) and EM field distribution (right).
From Figure 30 we can see the beneficial effect of shielding even better. Ferrite shielding almost completely shields the field above and below the coils. In this area, the hygienic limits are fully met and without the need for additional shielding.
Magnetic induction around shielded system.
The magnetic field of the coupling coils (Figure 30 on the right) is now much better concentrated in the coupling space, which increases the probability of meeting the hygienic limits many times over.
In order to verify the theoretical assumptions, an experimental prototype of a previously designed shielding was created. The photograph of the experimental workplace is evident from Figure 31.
Laboratory set-up for evaluation of the EM shielding impact.
The aim was to significantly reduce the switching frequency of the supply voltage and to suppress the emission of the EM field to meet the hygienic limits according to “ICNIRP 2010” [38, 39]. The operating parameters of the newly implemented prototype are quantified in Table 4. The values are valid for a working distance of 20 cm.
Power | 312 | 5116 | 4865 | 95.1 | 121.1 | 121 | 35 |
Efficiency | 312 | 4056 | 3886 | 95.8 | 121.1 | 125 | 29 |
0.21/0.21 | 172/167 | 10.444 |
Operational parameters of the system after application of the shielding.
Full-scale maps measured at reduced power (maximum efficiency) can be seen in Figure 32. The resonance is around 121 kHz, with the high efficiency range more than 10 kHz wide.
Output power characteristic (left) and efficiency characteristic (right) for shielded system and 20 cm power transfer distance.
The results confirm the ability of the systems to deliver 4 kW to the load at an efficiency of>95%, which, apart from the higher supply frequency, places it in the “WPT 1” category according to the “SAE TIR J2954” wireless charging station standard.
To verify the shielding efficiency, a scattering magnetic field was also measured (measurement uncertainty <2%) around the coupling coils using a calibrated Narda ELT 400 probe. The values were recorded in the cutting plane with a regular step of 10 cm in length (Figure 33). The values of the magnetic induction relevant for hygienic limits are boarded by red dashed line (Figure 33 left). It is seen, that specified limits are achieved approximately 20 cm from the top surface of the coils. Compared to unshielded system (Figure 33 right), it is reduction of approximately 60 cm considering the spherical distance.
Evaluation of the values of magnetic field around shielded (system) and non-shielded system (right) during experimental measurement at full power of proposed system.
Based on the received and verified results it was achieved, that with the use of presented methodology, it is possible to design wireless charger, whose characteristics will meet standards and normative defined by regulatory companies.
The paper has given a brief recapitulation of most important standards and regulations relating to the high-power wireless charging systems. It has proposed the magnetic couplers to be designed exactly according to optimal operation to the specific load.
For medium or high-power wireless chargers, we have recommended to compose the system of input inductance, the active rectifier and the voltage source inverter, which can provide low THDi, excellent power factor and controllable output voltage. Thus, no additional dc/dc converters are needed.
The experimental prototype has proven the validity of presented physical principles and confirmed the proposed conceptual design strategies. It has also shown and discussed the comparison between ac-ac and dc-dc system efficiency relating to losses-to-power transfer ratio.
Additionally, the measurement of leakage magnetic field has shown the real flux density distribution observed around the circular-shaped coupling coils. This could be used for further optimization.
This research was supported by project funding APVV – 17 – 0345 - Research of the optimization procedures for improvement of transfer, safety and reliability characteristics of WET systems. This research was also funded by the Ministry of Education, Youth and Sports of the Czech Republic under the project OP VVV Electrical Engineering Technologies with High-Level of Embedded Intelligence CZ.02.1.01/0.0/0.0/18_069/0009855 and by funding program of the University of West Bohemia number SGS-2018-009.
The authors declare no conflict of interest.
Since the end of the Second World War, the construction of buildings has experienced an increase in growth due to the increase in the world population and economic growth in recent decades. With many buildings, the problem of housing for people no longer arises. However, by making an inventory of the generally very high number of victims in building fires, these developments present numerous challenges for fire safety engineering. Indeed, for the past 75 years, there have been many fires in large buildings. There is for example, during April 15, 2019, the violent fire that started in the roof of the Notre-Dame de Paris cathedral, and it ravaged the roof and the frame by destroying the roof base and damaging the vault. In order to reduce the number of deaths and property damage, fire safety engineering has focused on understanding the different phenomena present in a building fire [1]. Among these phenomena, Paul et al. [2] and Hull et al. [3] showed that smoke is the main cause of death due to toxicity. Indeed, smoke plume can be hazardous for people in two different ways: the toxic gases in smoke, such as carbon dioxide, are a fatal hazard [2, 3], and the smoke can make it difficult to rescue and evacuate people as it reduces visibility. In a compartment fire, it is therefore very important to know the characteristics of the smoke spread. The parameters that influence the smoke spread are mechanical ventilation and external atmospheric conditions. Generally, mechanical ventilation ensures smoke exhaust; however, external atmospheric conditions can disturb smoke flow. Moreover, smoke flows depend essentially on physical properties such as expansion, thermal pressure, thermal buoyancy, and wind effect. Variation in one of these parameters, such as the wind speed, can affect strongly smoke behavior [4, 5]. Considering this possibility, it is important to highlight the effects of external atmospheric conditions on smoke spread in a compartment.
\nIndeed, during a fire in a room, the presence of external wind through an opening contributes to disturbance of the smoke flow, which can impair the extraction process, thereby increasing the risk of death. In this context, many studies have been carried out in recent years to provide knowledge for fire safety engineering, including many full-scale [6, 7] and reduced scale [8, 9] experimental investigations.
\nAt full scale, Tian et al. [6] showed that the more the wind velocity increases, the more the smoke temperature near the floor increases, in order to converge to the smoke temperature near the ceiling. Considering this, they highlighted that above a certain critical value of outdoor wind velocity, smoke stratification was disturbed, and smoke occupied the entire volume of the compartment. From scaling laws [10], small-scale experimental tests have been developed. Indeed, Li et al. [8] studied the influence of external wind velocity on the smoke flow in a small-scale facility. They showed that the driving forces of smoke flow through a high-rise building were modified according to the intensity of the external wind.
\nIn addition to the experimental studies cited above, numerical simulations on smoke propagation in a compartment have also been conducted. For example, Li et al. [11] simulated smoke flows in a reduced scale (1:12) corridor under natural ventilation conditions using the CFD code FDS. In their work, they compared numerical data with experimental data and highlighted that FDS was able to simulate the temperature field and the level of smoke stratification for different heat release rates (HRR). In another example, Weng et al. [12] performed numerical simulations on the smoke flow in a subway tunnel fire equipped with an extraction system. Their results revealed that the temperature and the level of smoke stratification under the tunnel ceiling in the longitudinal direction increased with the HRR.
\nConsidering the numerical studies presented above, it is shown that, using nice initial and boundary conditions, it is possible to make accurate simulations. Thus, in order to obtain accurate output results, it is necessary to define the input data correctly by carrying out a sensitivity analysis in order to find out the input parameters having the most influence on the output data. Two kinds of approach are classically used to achieve this: local and global approaches. For example, Batiot et al. [13] applied local and global sensitivity analysis on Arrhenius parameters in order to describe the kinetics of solid thermal degradation during fire phenomena, by determining four parameters (A, E, n, and ν). They stressed the specific role of A and E on the equation and showed the role and the influence of these parameters in the differential equation used to model the mass loss rate of a solid fuel as a function of the temperature and time. In a second example, Xiao et al. [14] applied global sensitivity analysis to an environmental model named Level E. The sensitivity indices used the energy distribution of the model output over different frequency bands as the quantitative feature of the model output.
\nMost of the numerical simulations that focused on the propagation of smoke in a ventilated or unventilated enclosure studied the level of smoke stratification as a function of the temperature profile and velocity. However, these numerical studies do not consider the effect of the external wind on smoke stratification in a corridor adjacent to a burning room with an opening. Using the data obtained by Li et al. [8], the aim of the present study was to highlight the ability of the fire dynamics simulator (FDS) to study smoke behavior according to the variation in outdoor wind velocity. This work, through a mesh resolution [15, 16], consists in reproducing the experimental conditions obtained in the work of Li et al. [8].
\nIn this chapter, a CFD approach was proposed to evaluate the effects of outdoor wind on the smoke spread induced by an adjacent compartment fire. In order to highlight the influence of the input parameters used as initial conditions in the computational modelling, a global sensitivity analysis was performed. For this, Section 2 presents an overview of the global sensitivity analysis methodology with polynomial chaos expansion. Section 3 defines the physical and numerical modelling, Section 4 focuses on numerical results and global sensitivity analysis, and the conclusion is presented in Section 5.
\nThe aim of sensitivity analysis is to quantify the influence of the variation of an input parameter on the variation of an output, also called quantity of interest. In the present study, the quantity of interest is the predicted smoke temperature near the ceiling (X = 5.4 m, Y = 0.5 m, Z = 85 cm), filtered by a Savitzky-Golay algorithm (third-order) to eliminate high-frequency variations of temperature. It is expressed as a mapping of the input parameters \n
Generally, there are two kinds of sensitivity analysis: local sensitivity analysis and global sensitivity analysis. The local sensitivity analysis is a simple approach in which the sensitivity indices are directly related to the derivatives of the quantity of interest with respect to each parameter [17, 18, 19]. It is called local because the local indices are only valid in a neighborhood of the nominal value [20]. While local approaches are restricted to the vicinity of the prescribed deterministic values, global sensitivity takes into account the entire domain of variation of each parameter.
\nTo extend the approach in the case of larger variations of parameters, a probabilistic framework is adopted. Lacking knowledge on the probability density functions of the inputs, we assume that each of the parameters follows a uniform law with a \n
Of interest in this chapter are the Sobol sensitivity indices. These indices are often associated to an analysis of variance (ANOVA) decomposition, which consists in the decomposition of the model response into main effects and interactions [21]:
\nThe decomposition is unique if summands satisfy the properties [20]:
\nThe variance of the model response according to variation of inputs can be derived as a sum of partial variances as follows:
\nThe partial variances \n
Then, the Sobol indices can be derived according to:
\nCrude Monte Carlo simulations or sampling-based techniques can be applied to obtain these indices, but the associated numerical is prohibitive for computationally demanding models such as those used in this chapter. To overcome this difficulty, the exact model provided by simulations was substituted by an analytical approximation, called metamodel, for which the computation of Sobol indices is exact and analytical. In this chapter, a polynomial chaos expansion was used as metamodel to derive the sensitivity indices.
\nThe polynomial chaos (PC) expansion consists in the projection of the model M on the space spanned by a family of \n
where \n
Legendre polynomials were used here because of the assumption of a uniform probability density function for each input parameter. To reduce the number of stochastic coefficients and thus the computational burden, a classical truncation criterion consists in prescribing the constraint: \n
The interest in such a decomposition is that, due to orthonormal properties of the family of polynomials, the mean \n
To compute the chaos coefficients \n
Here, we apply the second technique: it consists in searching the set of coefficients minimizing in the least-squares sense, the \n
The system is solved in a mean least-squares sense with a number \n
The simulations were carried out using the CFD code fire dynamics simulator (FDS) version 6.5.3 [24]. It solves the Navier-Stokes equations using an explicit finite difference scheme. As a CFD code, FDS models the thermally driven flow with an emphasis on smoke and heat transport. It is a large eddy simulation (LES) model using a uniform mesh and has parallel computing capability using message-passing interface (MPI) [25]. Reactive flows are modelled using a turbulence model based on a LES approach, a combustion model based on the eddy dissipation concept (EDC), and a thermal radiation model based on a gray gas model for the radiation absorption coefficient [15, 16].
\nThe models are based on the numerical solving of Navier-Stokes equations. These equations calculate mass, momentum, species, and energy conservation [25]:
\nwhere Eq. (14) represents the mass conservation equation, Eq. (15) represents the momentum conservation equation, Eq. (16) represents the species conservation equation, and Eq. (17) represents the energy conservation equation.
\nThe modelling was carried out using the Deardorff turbulence model and extinction model based on a critical flame temperature. The combustion model is based on the finite rate combustion using Arrhenius parameters (A: pre-exponential factor and Ea: activation energy). The fire source was modelled as a gas burner using butane as fuel with mass flux given by the experimental data [8]. The combustion heat of butane is 45182.83 kJ/kg.
\nThe experimental setup used as reference in the current numerical study represents a reduced scale (1:3) of a facility which contains a corridor and a fire room [8]. As shown in Figure 1, the dimensions of the corridor were 5.5 m (length) × 0.7 m (width) × 0.9 m (height) and the dimensions of the fire room were 2.0 m (length) × 1.7 m (width) × 1.0 m (height). The corridor and fire room were connected by a door whose dimensions were 0.7 m long by 0.3 m wide. The window in the fire room was opposite to the door and its dimensions were 0.5 m (width) × 0.5 m (height). The ceilings and floors of the corridor and fire room were made of steel plate with a thickness of 2.5 mm.
\nSchematic view of the experimental corridor and fire room.
As shown in Figure 1, the fire source was in the middle of the fire room, and it was defined as a gas burner using liquefied petroleum gas as fuel. The fuel supply rates of the gas burner were controlled and monitored by a flow meter. The HRR in the experiments was determined by multiplying the mass flow rate and the combustion heat of liquefied petroleum gas. The fire size can be scaled up to 96.2 kW of HRR, which corresponds to 1.5 MW full-scale.
\nThe wind can blow into the fire room through the window and the outdoor wind was generated by the fan and a static pressure box (cf. Figure 1). The velocity of the outdoor wind was adjusted by changing the AC frequency of the frequency converter. The velocity of the outdoor wind varied from 0 to 7.0 m/s and the corresponding full-scale outdoor wind velocity range was 0–12.12 m/s according to the scaling law of Froude modelling [12, 13]. Varying the wind velocity, eight experiments were conducted at an HRR of 96.2 kW, equaling 1.5 MW at full-scale.
\nThe experiments were carried out with ambient temperature ranging from 6 to 16°C. K-type thermocouples with an accuracy of ±1°C were used for the temperature measurements in the corridor and fire room. Hot wire wind speed meters were applied to measure the velocity of smoke.
\nIn order to model the geometry and the boundary conditions of the setup used during the experimental tests [8], the walls of the corridor and fireroom were made of steel having a density of 7850 kg/m3, a thermal conductivity of 46 W/(m·K)−1, a specific heat of 0.5 kJ/(kg·K), and an emissivity of 0.9.
\nIn simulations, the boundary condition at the window was modeled as an opening in the case without wind. With wind, a constant flow rate was set at the window using the velocity boundary used in the CFD code. In order to remain consistent with the experimental tests, a waiting time of 150 s was defined before activation of the outdoor wind velocity in the modelling. The simulations were performed in eight cases (Vw = 0, 1, 2, 3, 4, 5, 6, and 7 m/s, which correspond to Vw = 0, 1.73, 3.46, 5.20, 6.93, 8.66, 10.39, and 12.12 m/s full-scale). Similarly, the simulation results were converted into full-scale data according to the Froude number.
\nThe smoke temperature, smoke velocity, concentration of O2 and CO, and visibility in the corridor were analyzed by setting different devices in the plane (Y = 0.5 m), near the exit of the corridor (X = 5.4 m), at different heights (Z = 85, 70, 55, 40, and 25 cm). Moreover, other observations were carried out about the distribution of temperature, velocity, concentration of O2 and CO2, and visibility thanks to slice fields in the plane Y = 0.5 m.
\nFor numerical studies, it is important to choose the correct mesh size in order to obtain accurate simulation results. FDS provides a range of mesh sizes for mesh resolution. From a Poisson solver based on the fast Fourier transform (FFT), it is possible to obtain good numerical resolution by solving the governing equations. The mesh size was chosen in accordance with the recommendations made in the numerical studies [15, 16]. An optimal mesh size should meet two requirements: good results in terms of accuracy and a short calculation time. The optimal mesh size of the domain is given by the nondimensional expression \n
where D* denotes the characteristic fire diameter, \n
Based on several experiments, the U.S. Nuclear Regulatory Commission recommends that the numerical range of \n
After calculation, the range of mesh sizes was found to be: (0.0625 and 0.25 m). Therefore, four different mesh sizes were used: 20, 10, 5, and 2.5 cm. Figure 2(a) and (b) presents the comparisons between experiment and FDS predictions for these four different meshes. The comparisons were carried out on the evolution of the smoke temperature and smoke velocity, both measured 70 cm above the ground and in the centerline of the corridor near the exit.
\nThe influence of grid cells on: (a) temperature at a height of 70 cm; and (b) smoke velocity without wind at a height of 70 cm.
It can be seen that the numerical results obtained with mesh sizes of 5 and 2.5 cm converge with the experimental results, while the results of the 20 and 10 cm meshes diverge. Moreover, the 2.5-cm mesh gives more accurate numerical results than the 5-cm mesh. As shown in Table 1, the relative gap (RG) of the calculation with the 2.5-cm mesh (3.85%) is slightly smaller than the calculation with a 5-cm mesh (6.83%). The relative gap (RG) is obtained by [26]:
\nNumerical grid | \nNumber of cells | \nRelative gap (%) | \nCPU time (h) | \n|
---|---|---|---|---|
Temperature (°C) | \nSmoke velocity (m/s) | \n|||
Mesh size 20 cm | \n1685 | \n31.06 | \n33.17 | \n1.2 | \n
Mesh size 10 cm | \n11865 | \n19.76 | \n16.91 | \n4.4 | \n
Mesh size 5 cm | \n94920 | \n6.06 | \n6.23 | \n9.6 | \n
Mesh size 2.5 cm | \n759360 | \n3.80 | \n3.85 | \n92.2 | \n
Results of different numerical grid mesh sizes.
where ypre is a predicted value, yexp is an experimental value, and n is the number of experimental points.
\nHowever, the calculation time with the 2.5-cm mesh is 10 times longer than with the 5-cm mesh. In addition, the relative gap of the 5-cm mesh is close to that of the 2.5-cm mesh. As it represents the best trade-off between precision and calculation time, the 5-cm mesh was used for the following calculations, this choice is reinforced by the suggestions of the various cases of validation of the FDS code proposed in the user guide [24].
\nWith the 5-cm mesh, the total number of cells is 94920 and the simulation time is 1000 s with a time step of 0.010 s. The calculations were carried out using 20 processors in the ARTEMIS cluster of the “Région Centre Val de Loire—France” and each computation took about 9.6 h.
\n\nFigure 2(a) and (b) shows that the numerical results obtained with the 5-cm mesh are in agreement with experimental data as regards the evolution of smoke temperature and smoke velocity [8]. This indicates that with a 5-cm mesh, the boundary conditions can be satisfactorily modeled by FDS and that the interaction between wind and smoke flow can be reproduced.
\n\nFigure 3 plots the smoke velocity decays with different wind velocities: (a) Vw = 1.73 m/s; (b) Vw = 5.20 m/s; (c) Vw = 6.93 m/s; and (d) Vw = 10.93 m/s at 70 cm height. It can be seen that the predictions of the evolution of smoke velocities are similar to those of the experimental data [8]. Since the velocities were measured at a height of 70 cm in the experiments, these values are in fact averages.
\nSmoke velocity with: (a) Vw = 1.73 m/s; (b) Vw = 3.46 m/s; (c) Vw = 6.93 m/s; and (d) Vw = 12.12 m/s at a height of 70 cm of FDS and experimental results [
Therefore, it is possible that for some values of the smoke velocity, the experimental data are underestimated or overestimated. In these conditions, predictions are overestimated at the start or at the end of the curves Figure 3(a) and (b). These small differences can be associated to the vortex waves that are not very well reproduced by the turbulence model. To try to improve it, a sensibility analysis can be performed on the different turbulence models [24]. However, good agreement between prediction and experiment is observed in the other pictures (Figure 3(c) and (d)).
\nIt can be concluded from these different comparisons that the choice of a 5-cm mesh is suitable and that it can deal with reactive flows with a good accuracy. Leakage was neglected during the modelling, as the amount of leakage in the experiment is unknown. It is possible, therefore, that some simulation results may be under- or overestimated. Overall, however, the predictions of the simulations are acceptable.
\nIn this part of the chapter, the numerical results with different wind velocities (Vw = 1.73, 3.46, and 5.20 m/s) are discussed in terms of the effects of outdoor wind on smoke stratification and smoke extraction. A global sensitivity analysis was carried out in order to determine the effects of the input parameters on the output data. The target input parameters are mass flux (MF) of fuel, the material properties (conductivity λ, emissivity ε, density ρ, and specific heat cp), and the Arrhenius parameters (A, Ea). The target output data are the smoke temperature near the ceiling.
\n\nFigure 4 presents the smoke velocity field with (a) Vw = 0 m/s; (b) Vw = 1.73 m/s; (c) Vw = 3.46 m/s; and (d) Vw = 5.20 m/s; in the cross-section y = 0.5 m at 300 s. The cross-section y = 0.5 m is the plane in the middle of the corridor. In Figure 4(a), taking this plane at the height of 70 cm, the maximum value of the smoke velocity is near the door and decreases with the distance from the door as shown in Figures 3 and 4. In addition, considering smoke stratification with a hot zone near the ceiling and a cold zone near the floor, it is observed that the buoyancy effects give the reverse observation. Near the floor, the smoke velocity increases with the distance, and using the vortex recirculation solved by the Deardorff turbulence model, the numerical solver can reproduce the vortex flow induced by the smoke flow.
\nSimulation of the smoke velocity field with (a) Vw = 0 m/s; (b) Vw = 1.73 m/s; (c) Vw = 3.46 m/s; and (d) Vw = 5.20 m/s in the cross-section y = 0.5 m at 300 s.
From Figure 4, the maximum of smoke velocity in the corridor increases when the wind velocity increases. As mentioned previously, in these conditions, smoke exhaust can be disturbed. Outdoor wind can, however, contribute to the evacuation of smoke and fire extinction in that more smoke is extracted through the corridor when the wind velocity increases. It should nevertheless be mentioned that while ventilation and extraction systems play an important role in fire engineering [15], the efficiency of the smoke extraction system will be reduced and even be invalidated when the outdoor wind velocity is very high and the extraction system is installed in the windward surface of the compartment [21]. In this case, the extraction system cannot perform well, and smoke can spread along the entire compartment through the connected rooms. This situation is not acceptable for fire safety.
\n\nFigure 5 shows that when the outdoor wind velocity increases, the oxygen concentration increases and carbon dioxide concentration decreases. Figure 5 presents the influence of wind velocity on O2 concentration and CO2 concentration at a height of 85 cm (on the ceiling of the corridor), showing that the more wind velocity increases, the more oxygen concentration increases. After 300 s, the oxygen concentration remains stable when the wind velocity varies from 0 to 6.93 m/s. The oxygen concentration at 300 s was therefore used to compare the different wind velocity cases.
\nInfluence of wind velocity on: (a) O2 concentration; and (b) CO2 concentration at 85 cm height.
When the wind velocity is 1.73 m/s, the O2 molar concentration increases only slightly compared to a situation without wind. When the wind velocity increases to 3.46 m/s, the O2 molar concentration increases strongly compared to the case without wind. For a wind velocity of 6.93 m/s, the O2 molar concentration increases to 20.2%, 1.8% higher than without wind. The rise in O2 concentration in the corridor also indicates that more smoke is extracted.
\nThe more the wind velocity increases, the more the CO2 concentration decreases (Figure 5(b)). At a wind velocity of 6.93 m/s, the CO2 molar concentration decreases to 0.3%, 1% lower than without wind. The decline of the CO2 concentration in the corridor also contributes to people escaping from fires.
\nUsing oxygen concentration field like the smoke velocity field in the Figure 4, the mean oxygen concentration in the corridor increases when the wind velocity increases, showing that a higher wind velocity can facilitate smoke exhaust.
\nIt is also possible to highlight the influence of wind velocity on CO concentration and visibility. The evolutions of these latest are presented in Figure 6 at a height of 50 cm. The height of 50 cm represents the average height of a person measuring 165 cm in a full-scale building. From Figure 6(a), CO concentration decreases with wind velocity.
\nInfluence of wind velocity on: (a) CO concentration; and (b) visibility at 55 cm height at the exit of the corridor.
The outdoor wind can thus be an advantage for diluting the CO concentration. Figure 6(b) shows that the more the outdoor wind velocity increases, the more the visibility increases. Thus, the more wind blows in, the more smoke is diluted. However, the visibility becomes homogenous in the enclosure due to disturbance in the smoke stratification. In a fire with a heat release rate larger than the one used in this study, the poor visibility can be unfavorable for the evacuation of people in the building.
\nUsing the CO concentration field similarly to the smoke filed, the average concentration of CO decreases with the increase in wind velocity. There are two zones: a thin zone near the floor and a thick zone near the ceiling in the case of no wind.
\nThe distribution of CO concentration in the corridor gradually becomes homogeneous as the wind velocity increases. Although in this study the CO concentration is so small that it would have little effect on people’s health, the homogeneous distribution of CO concentration may cause serious problems when the heat release rate in the building is larger, producing more CO.
\nMoreover, concerning the visibility, it is shown that the visibility of the lower area in the corridor is very high and the visibility of the upper area in the corridor is very low due to smoke stratification when there is no wind. For this, the visibility in the corridor gradually becomes homogeneous as the outdoor wind velocity increases and becomes better when the wind velocity reaches 5.20 m/s, indicating that the more smoke is exhausted, the more visibility is improved.
\nIn other words, smoke can exit the corridor faster when the wind velocity increases. It can be said that to some extent, the outdoor wind is helpful for smoke exhaust and an advantage for the evacuation of people in fires as it can decrease the concentration of toxic gas and improve visibility in the environment. However, in these conditions, the outdoor wind becomes a disturbance for the extraction system, representing an unacceptable situation for fire safety.
\nIn Li et al. [8], it was shown that the more wind velocity increased, the more severely the smoke stratification was disturbed. This observation was obtained by comparing the smoke temperature near the floor (height = 25 cm) and the smoke temperature near the ceiling (height = 85 cm). The tests were performed for three velocities. The results showed that above a wind velocity of 3.46 m/s, the smoke temperatures near the floor and the ceiling were similar. This similarity was taken to imply that the smoke occupied the entire corridor volume, due to the absence of smoke stratification, and the numerical data used in the current study confirmed this observation.
\nThanks to Figure 7, it is possible to make a comparison between the smoke temperature near the ceiling and near the floor. It is constated that the more wind speed increases, the more the smoke stratification is disturbed. Smoke stratification is represented by the stability between the hot zone and the cold zone. The hot zone is formed by hot smoke and the cold zone is formed by cold air. Smoke stratification in an enclosure is due to the temperature difference between these two zones. In addition, as shown in the literature [27, 28, 29], smoke stratification depends on the Froude number. Smoke stratification is very stable up to a critical Froude number and becomes disturbed when the Froude number is larger than this critical value. It is known that the Froude number can be associated to velocity. So, smoke stratification is related to the smoke velocity in an enclosure. In Figure 7(a), when the wind velocity is 0 m/s, the smoke temperature near the ceiling and floor are about 5 and 60°C, indicating that smoke stratification is very stable. At a wind velocity of 1.73 m/s, the smoke temperature near the ceiling and floor are about 25 and 100°C, respectively. In this condition, there are still two zones. In Figure 7(b), there is a slight perturbation of the temperature near the ceiling, indicating a slight disturbance in the smoke stratification. However, from a wind velocity of 3.46 m/s, the smoke temperature near the ceiling and floor are similar with an average of 80°C. This means that above this velocity, there is no smoke stratification in the corridor and that smoke occupies the entire corridor. Under these conditions, there is a risk of toxicity for people. These observations confirm results reported in the literature [8] and highlight the ability of the CFD code to reproduce the effects of wind on the movement of smoke in an enclosure. Moreover, in these conditions, outdoor wind becomes a disturbance for smoke extraction, creating an unacceptable situation for fire safety.
\nInfluence of wind velocity (a) Vw = 0 m/s; (b) Vw = 1.73 m/s; (c) Vw = 3.46 m/s; and (d) Vw = 5.20 m/s on smoke temperature in different heights of the corridor.
The smoke temperature field with (a) Vw = 0 m/s; (b) Vw = 1.73 m/s; (c) Vw = 3.46 m/s; and (d) Vw = 5.20 m/s in the cross-section y = 0.5 m at 300 s is shown in Figure 8. It can be clearly seen that when there is no outdoor wind, there is temperature stratification in the corridor. In addition, the temperature near the ceiling is much higher than the temperature near the floor. For a wind velocity of 1.73 m/s, smoke stratification is disturbed but still exists due to the presence of two zones, with a much smaller cold zone than hot zone. When the wind velocity is 3.46 m/s, smoke stratification almost disappears, as the smoke temperature is similar at the different heights and only the hot zone subsists. In this condition, smoke occupies the entire corridor. The phenomenon of temperature stratification in the corridor disappears completely when the wind velocity reaches 5.20 m/s (Figure 8(d)), as also shown with the curves in Figure 7(d). These results also show that thanks to simulations performed by FDS, it is possible to demonstrate the fields of smoke movement in an enclosure with outdoor wind.
\nSmoke temperature field with (a) Vw = 0 m/s; (b) Vw = 1.73 m/s; (c) Vw = 3.46 m/s; (d) Vw = 5.20 m/s on the cross-section y = 0.5 m at 300 s.
In addition, from a global sensitivity analysis, an investigation was carried out in order to highlight the relative importance of seven parameters: mass flux MF, activation energy Ea, conductivity λ, emissivity ϵ, pre-exponential factor A, density ρ, and specific heat cp. The aim was to determine whether, among these seven parameters, even a slight modification of the input parameter may cause a large variation in the response. The quantity of interest is the temperature near the ceiling. A tolerance interval of ±10% was applied to each of the inputs so that for each of the inputs, a dimensionless random parameter is introduced. Its value depends on the realization θ and belongs to the interval [−1,1].
\nIn this context, the values of the random parameters \n
Indeed, using the smoke temperature as out data based on the methodology of the sensitivity analysis proposed by Chaos [20], Figure 9 shows that the mass flux of the fuel and the activation energy are the two parameters which are an important influence on the smoke temperature.
\nLocal sensitivity indices.
Moreover, Figure 9 presents the first-order sensitivity and the total sensitivity indices. Considering this influence, it is very important to define the values of the mass flux of the fuel and the activation energy with a good accuracy in order to over or underestimate the out data such as the temperature, heat flux, pressure, and the amount of species.
\nIn this chapter, a CFD code, namely fire dynamics simulator (FDS), was employed to model the smoke spreading along a corridor induced by a compartment fire. The focus was on the effects of outdoor wind on the dynamics of smoke spreading based on experimental data. Simulations were carried out by varying wind velocity from 0 to 12.12 m/s. Good agreement between experimental data and prediction was found, enabling investigation of smoke stratification, smoke exhaust, and a global sensitivity analysis. The major findings include the following:
By analyzing the temperature distribution in the corridor, it was found that smoke stratification can be strongly affected by the outdoor wind. For wind velocities higher than the critical value of 3.46 m/s, smoke stratification is completely disturbed.
When the wind velocity is higher than the critical value (here 3.46 m/s), O2 concentration and visibility increase, while CO2 and CO concentration tends to decrease. It is shown that the magnitude of the outdoor wind can facilitate smoke exhaust in a compartment fire.
The results of a global sensitivity analysis indicate that it is essential to define the most influential input parameters correctly, namely the mass flux of the fuel and the activation energy. If not, large deviations in the outputs of the numerical results such as smoke temperature may occur due to variations, even slight ones, in the input parameters.
Based on the amplitude of the metamodel coefficients, a reduced metamodel has been proposed. A prediction with a confidence interval can be easily implemented, leading to close agreement with the numerical results.
Through this work, it is demonstrated that CFD FDS can provide information about the movement of smoke in a corridor. Besides, it can be coupled with a polynomial chaos-based sensitivity analysis, which enables the input parameters to be classified on quantitative grounds with a limited computational cost.
\nIn addition, considering the importance of the effects of outside wind on reactive flows induced by a fire in a building, it is important to study other study configurations. In this context, it would be important to also study the role of the outside wind on the ignition of smoke rich in unburnt gas in the case of an under-ventilated fire.
\n",metaTitle:"Open Access Statement",metaDescription:"Book chapters published in edited volumes are distributed under the Creative Commons Attribution 3.0 Unported License (CC BY 3.0)",metaKeywords:null,canonicalURL:"/page/open-access-statement/",contentRaw:'[{"type":"htmlEditorComponent","content":"
License
\\n\\nBook Chapters published in edited volumes are distributed under the Creative Commons Attribution 3.0 Unported License (CC BY 3.0). IntechOpen maintains a very flexible Copyright Policy that ensures that there is no copyright transfer to the publisher. Therefore, Authors retain exclusive copyright to their work. All Monographs are distributed under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) and journal articles are distributed under a Creative Commons 4.0 International Licence.
\\n\\n\\n\\nFormats
\\n\\nBased on your preferences and the stage of your scientific projects, you have multiple options for publishing your scientific research with IntechOpen:
\\n\\nPeer Review Policies
\\n\\nAll scientific Works are subject to Peer Review prior to publishing.
\\n\\n\\n\\nCosts
\\n\\nThe Open Access publishing model followed by IntechOpen eliminates subscription charges and pay-per-view fees, thus enabling readers to access research at no cost to themselves. In order to sustain these operations, and keep our publications freely accessible, we levy an Open Access Publishing Fee on all manuscripts accepted for publication to help cover the costs of editorial work and the production of books.
\\n\\n\\n\\nDigital Archiving Policy
\\n\\nIntechOpen is dedicated to ensuring the long-term preservation and availability of the scholarly research it publishes.
\\n"}]'},components:[{type:"htmlEditorComponent",content:'License
\n\nBook Chapters published in edited volumes are distributed under the Creative Commons Attribution 3.0 Unported License (CC BY 3.0). IntechOpen maintains a very flexible Copyright Policy that ensures that there is no copyright transfer to the publisher. Therefore, Authors retain exclusive copyright to their work. All Monographs are distributed under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) and journal articles are distributed under a Creative Commons 4.0 International Licence.
\n\n\n\nFormats
\n\nBased on your preferences and the stage of your scientific projects, you have multiple options for publishing your scientific research with IntechOpen:
\n\nPeer Review Policies
\n\nAll scientific Works are subject to Peer Review prior to publishing.
\n\n\n\nCosts
\n\nThe Open Access publishing model followed by IntechOpen eliminates subscription charges and pay-per-view fees, thus enabling readers to access research at no cost to themselves. In order to sustain these operations, and keep our publications freely accessible, we levy an Open Access Publishing Fee on all manuscripts accepted for publication to help cover the costs of editorial work and the production of books.
\n\n\n\nDigital Archiving Policy
\n\nIntechOpen is dedicated to ensuring the long-term preservation and availability of the scholarly research it publishes.
\n'}]},successStories:{items:[]},authorsAndEditors:{filterParams:{},profiles:[{id:"396",title:"Dr.",name:"Vedran",middleName:null,surname:"Kordic",slug:"vedran-kordic",fullName:"Vedran Kordic",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/396/images/7281_n.png",biography:"After obtaining his Master's degree in Mechanical Engineering he continued his education at the Vienna University of Technology where he obtained his PhD degree in 2004. He worked as a researcher at the Automation and Control Institute, Faculty of Electrical Engineering, Vienna University of Technology until 2008. His studies in robotics lead him not only to a PhD degree but also inspired him to co-found and build the International Journal of Advanced Robotic Systems - world's first Open Access journal in the field of robotics.",institutionString:null,institution:{name:"TU Wien",country:{name:"Austria"}}},{id:"441",title:"Ph.D.",name:"Jaekyu",middleName:null,surname:"Park",slug:"jaekyu-park",fullName:"Jaekyu Park",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/441/images/1881_n.jpg",biography:null,institutionString:null,institution:{name:"LG Corporation (South Korea)",country:{name:"Korea, South"}}},{id:"465",title:"Dr",name:"Christian",middleName:null,surname:"Martens",slug:"christian-martens",fullName:"Christian Martens",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:null},{id:"479",title:"Dr.",name:"Valentina",middleName:null,surname:"Colla",slug:"valentina-colla",fullName:"Valentina Colla",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/479/images/358_n.jpg",biography:null,institutionString:null,institution:{name:"Sant'Anna School of Advanced Studies",country:{name:"Italy"}}},{id:"494",title:"PhD",name:"Loris",middleName:null,surname:"Nanni",slug:"loris-nanni",fullName:"Loris Nanni",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/494/images/system/494.jpg",biography:"Loris Nanni received his Master Degree cum laude on June-2002 from the University of Bologna, and the April 26th 2006 he received his Ph.D. in Computer Engineering at DEIS, University of Bologna. On September, 29th 2006 he has won a post PhD fellowship from the university of Bologna (from October 2006 to October 2008), at the competitive examination he was ranked first in the industrial engineering area. He extensively served as referee for several international journals. He is author/coauthor of more than 100 research papers. He has been involved in some projects supported by MURST and European Community. His research interests include pattern recognition, bioinformatics, and biometric systems (fingerprint classification and recognition, signature verification, face recognition).",institutionString:null,institution:null},{id:"496",title:"Dr.",name:"Carlos",middleName:null,surname:"Leon",slug:"carlos-leon",fullName:"Carlos Leon",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Seville",country:{name:"Spain"}}},{id:"512",title:"Dr.",name:"Dayang",middleName:null,surname:"Jawawi",slug:"dayang-jawawi",fullName:"Dayang Jawawi",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"University of Technology Malaysia",country:{name:"Malaysia"}}},{id:"528",title:"Dr.",name:"Kresimir",middleName:null,surname:"Delac",slug:"kresimir-delac",fullName:"Kresimir Delac",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/528/images/system/528.jpg",biography:"K. Delac received his B.Sc.E.E. degree in 2003 and is currentlypursuing a Ph.D. degree at the University of Zagreb, Faculty of Electrical Engineering andComputing. His current research interests are digital image analysis, pattern recognition andbiometrics.",institutionString:null,institution:{name:"University of Zagreb",country:{name:"Croatia"}}},{id:"557",title:"Dr.",name:"Andon",middleName:"Venelinov",surname:"Topalov",slug:"andon-topalov",fullName:"Andon Topalov",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/557/images/1927_n.jpg",biography:"Dr. Andon V. Topalov received the MSc degree in Control Engineering from the Faculty of Information Systems, Technologies, and Automation at Moscow State University of Civil Engineering (MGGU) in 1979. He then received his PhD degree in Control Engineering from the Department of Automation and Remote Control at Moscow State Mining University (MGSU), Moscow, in 1984. From 1985 to 1986, he was a Research Fellow in the Research Institute for Electronic Equipment, ZZU AD, Plovdiv, Bulgaria. In 1986, he joined the Department of Control Systems, Technical University of Sofia at the Plovdiv campus, where he is presently a Full Professor. He has held long-term visiting Professor/Scholar positions at various institutions in South Korea, Turkey, Mexico, Greece, Belgium, UK, and Germany. And he has coauthored one book and authored or coauthored more than 80 research papers in conference proceedings and journals. His current research interests are in the fields of intelligent control and robotics.",institutionString:null,institution:{name:"Technical University of Sofia",country:{name:"Bulgaria"}}},{id:"585",title:"Prof.",name:"Munir",middleName:null,surname:"Merdan",slug:"munir-merdan",fullName:"Munir Merdan",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/585/images/system/585.jpg",biography:"Munir Merdan received the M.Sc. degree in mechanical engineering from the Technical University of Sarajevo, Bosnia and Herzegovina, in 2001, and the Ph.D. degree in electrical engineering from the Vienna University of Technology, Vienna, Austria, in 2009.Since 2005, he has been at the Automation and Control Institute, Vienna University of Technology, where he is currently a Senior Researcher. His research interests include the application of agent technology for achieving agile control in the manufacturing environment.",institutionString:null,institution:null},{id:"605",title:"Prof",name:"Dil",middleName:null,surname:"Hussain",slug:"dil-hussain",fullName:"Dil Hussain",position:null,profilePictureURL:"https://mts.intechopen.com/storage/users/605/images/system/605.jpg",biography:"Dr. Dil Muhammad Akbar Hussain is a professor of Electronics Engineering & Computer Science at the Department of Energy Technology, Aalborg University Denmark. Professor Akbar has a Master degree in Digital Electronics from Govt. College University, Lahore Pakistan and a P-hD degree in Control Engineering from the School of Engineering and Applied Sciences, University of Sussex United Kingdom. Aalborg University has Two Satellite Campuses, one in Copenhagen (Aalborg University Copenhagen) and the other in Esbjerg (Aalborg University Esbjerg).\n· He is a member of prestigious IEEE (Institute of Electrical and Electronics Engineers), and IAENG (International Association of Engineers) organizations. \n· He is the chief Editor of the Journal of Software Engineering.\n· He is the member of the Editorial Board of International Journal of Computer Science and Software Technology (IJCSST) and International Journal of Computer Engineering and Information Technology. \n· He is also the Editor of Communication in Computer and Information Science CCIS-20 by Springer.\n· Reviewer For Many Conferences\nHe is the lead person in making collaboration agreements between Aalborg University and many universities of Pakistan, for which the MOU’s (Memorandum of Understanding) have been signed.\nProfessor Akbar is working in Academia since 1990, he started his career as a Lab demonstrator/TA at the University of Sussex. After finishing his P. hD degree in 1992, he served in the Industry as a Scientific Officer and continued his academic career as a visiting scholar for a number of educational institutions. In 1996 he joined National University of Science & Technology Pakistan (NUST) as an Associate Professor; NUST is one of the top few universities in Pakistan. In 1999 he joined an International Company Lineo Inc, Canada as Manager Compiler Group, where he headed the group for developing Compiler Tool Chain and Porting of Operating Systems for the BLACKfin processor. The processor development was a joint venture by Intel and Analog Devices. In 2002 Lineo Inc., was taken over by another company, so he joined Aalborg University Denmark as an Assistant Professor.\nProfessor Akbar has truly a multi-disciplined career and he continued his legacy and making progress in many areas of his interests both in teaching and research. He has contributed in stochastic estimation of control area especially, in the Multiple Target Tracking and Interactive Multiple Model (IMM) research, Ball & Beam Control Problem, Robotics, Levitation Control. He has contributed in developing Algorithms for Fingerprint Matching, Computer Vision and Face Recognition. He has been supervising Pattern Recognition, Formal Languages and Distributed Processing projects for several years. He has reviewed many books on Management, Computer Science. Currently, he is an active and permanent reviewer for many international conferences and symposia and the program committee member for many international conferences.\nIn teaching he has taught the core computer science subjects like, Digital Design, Real Time Embedded System Programming, Operating Systems, Software Engineering, Data Structures, Databases, Compiler Construction. In the Engineering side, Digital Signal Processing, Computer Architecture, Electronics Devices, Digital Filtering and Engineering Management.\nApart from his Academic Interest and activities he loves sport especially, Cricket, Football, Snooker and Squash. He plays cricket for Esbjerg city in the second division team as an opener wicket keeper batsman. He is a very good player of squash but has not played squash since his arrival in Denmark.",institutionString:null,institution:null},{id:"611",title:"Prof.",name:"T",middleName:null,surname:"Nagarajan",slug:"t-nagarajan",fullName:"T Nagarajan",position:null,profilePictureURL:"//cdnintech.com/web/frontend/www/assets/author.svg",biography:null,institutionString:null,institution:{name:"Universiti Teknologi Petronas",country:{name:"Malaysia"}}}],filtersByRegion:[{group:"region",caption:"North America",value:1,count:6630},{group:"region",caption:"Middle and South America",value:2,count:5913},{group:"region",caption:"Africa",value:3,count:2404},{group:"region",caption:"Asia",value:4,count:12563},{group:"region",caption:"Australia and Oceania",value:5,count:1009},{group:"region",caption:"Europe",value:6,count:17574}],offset:12,limit:12,total:132971},chapterEmbeded:{data:{}},editorApplication:{success:null,errors:{}},ofsBooks:{filterParams:{hasNoEditors:"1",sort:"ebgfFaeGuveeFgfcChcyvfu"},books:[],filtersByTopic:[{group:"topic",caption:"Agricultural and Biological Sciences",value:5,count:43},{group:"topic",caption:"Biochemistry, Genetics and Molecular Biology",value:6,count:12},{group:"topic",caption:"Business, Management and Economics",value:7,count:4},{group:"topic",caption:"Chemistry",value:8,count:24},{group:"topic",caption:"Computer and Information Science",value:9,count:19},{group:"topic",caption:"Earth and Planetary Sciences",value:10,count:19},{group:"topic",caption:"Engineering",value:11,count:65},{group:"topic",caption:"Environmental Sciences",value:12,count:9},{group:"topic",caption:"Immunology and Microbiology",value:13,count:11},{group:"topic",caption:"Materials Science",value:14,count:29},{group:"topic",caption:"Mathematics",value:15,count:11},{group:"topic",caption:"Medicine",value:16,count:128},{group:"topic",caption:"Nanotechnology and Nanomaterials",value:17,count:9},{group:"topic",caption:"Neuroscience",value:18,count:3},{group:"topic",caption:"Pharmacology, Toxicology and Pharmaceutical Science",value:19,count:6},{group:"topic",caption:"Physics",value:20,count:12},{group:"topic",caption:"Psychology",value:21,count:9},{group:"topic",caption:"Robotics",value:22,count:3},{group:"topic",caption:"Social Sciences",value:23,count:9},{group:"topic",caption:"Veterinary Medicine and Science",value:25,count:3}],offset:0,limit:12,total:null},popularBooks:{featuredBooks:[{type:"book",id:"9974",title:"E-Learning and Digital Education in the Twenty-First Century",subtitle:null,isOpenForSubmission:!1,hash:"88b58d66e975df20425fc1dfd22d53aa",slug:"e-learning-and-digital-education-in-the-twenty-first-century",bookSignature:"M. Mahruf C. Shohel",coverURL:"https://cdn.intechopen.com/books/images_new/9974.jpg",editors:[{id:"94099",title:"Dr.",name:"M. Mahruf C.",middleName:null,surname:"Shohel",slug:"m.-mahruf-c.-shohel",fullName:"M. Mahruf C. Shohel"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11001",title:"Density Functional Theory",subtitle:"Recent Advances, New Perspectives and Applications",isOpenForSubmission:!1,hash:"82d53383af78ab41eb982086c02fb2bb",slug:"density-functional-theory-recent-advances-new-perspectives-and-applications",bookSignature:"Daniel Glossman-Mitnik",coverURL:"https://cdn.intechopen.com/books/images_new/11001.jpg",editors:[{id:"198499",title:"Dr.",name:"Daniel",middleName:null,surname:"Glossman-Mitnik",slug:"daniel-glossman-mitnik",fullName:"Daniel Glossman-Mitnik"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10356",title:"Natural Medicinal Plants",subtitle:null,isOpenForSubmission:!1,hash:"943e56ccaaf19ff696d25aa638ae37d6",slug:"natural-medicinal-plants",bookSignature:"Hany A. El-Shemy",coverURL:"https://cdn.intechopen.com/books/images_new/10356.jpg",editors:[{id:"54719",title:"Prof.",name:"Hany",middleName:null,surname:"El-Shemy",slug:"hany-el-shemy",fullName:"Hany El-Shemy"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11752",title:"Natural Drugs from Plants",subtitle:null,isOpenForSubmission:!1,hash:"a0a83c0822608ef7592bf16a5ed0ada4",slug:"natural-drugs-from-plants",bookSignature:"Hany A. El-Shemy",coverURL:"https://cdn.intechopen.com/books/images_new/11752.jpg",editors:[{id:"54719",title:"Prof.",name:"Hany",middleName:null,surname:"El-Shemy",slug:"hany-el-shemy",fullName:"Hany El-Shemy"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10251",title:"Plankton Communities",subtitle:null,isOpenForSubmission:!1,hash:"e11e441ca2d2d5f631b1b4704505cfb6",slug:"plankton-communities",bookSignature:"Leonel Pereira and Ana Marta Gonçalves",coverURL:"https://cdn.intechopen.com/books/images_new/10251.jpg",editors:[{id:"279788",title:"Dr.",name:"Leonel",middleName:null,surname:"Pereira",slug:"leonel-pereira",fullName:"Leonel Pereira"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10830",title:"Animal Feed Science and Nutrition",subtitle:"Production, Health and Environment",isOpenForSubmission:!1,hash:"79944fc8fbbaa329aed6fde388154832",slug:"animal-feed-science-and-nutrition-production-health-and-environment",bookSignature:"Amlan Kumar Patra",coverURL:"https://cdn.intechopen.com/books/images_new/10830.jpg",editors:[{id:"310962",title:"Dr.",name:"Amlan",middleName:"Kumar",surname:"Patra",slug:"amlan-patra",fullName:"Amlan Patra"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10584",title:"Engineered Wood Products for Construction",subtitle:null,isOpenForSubmission:!1,hash:"421757c56a3735986055250821275a51",slug:"engineered-wood-products-for-construction",bookSignature:"Meng Gong",coverURL:"https://cdn.intechopen.com/books/images_new/10584.jpg",editors:[{id:"274242",title:"Dr.",name:"Meng",middleName:null,surname:"Gong",slug:"meng-gong",fullName:"Meng Gong"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9670",title:"Current Trends in Wheat Research",subtitle:null,isOpenForSubmission:!1,hash:"89d795987f1747a76eee532700d2093d",slug:"current-trends-in-wheat-research",bookSignature:"Mahmood-ur-Rahman Ansari",coverURL:"https://cdn.intechopen.com/books/images_new/9670.jpg",editors:[{id:"185476",title:"Dr.",name:"Mahmood-ur-Rahman",middleName:null,surname:"Ansari",slug:"mahmood-ur-rahman-ansari",fullName:"Mahmood-ur-Rahman Ansari"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9032",title:"Corporate Social Responsibility",subtitle:null,isOpenForSubmission:!1,hash:"f609bf3251d7cc7bae0099a4374adfc3",slug:"corporate-social-responsibility",bookSignature:"Beatrice Orlando",coverURL:"https://cdn.intechopen.com/books/images_new/9032.jpg",editors:[{id:"232969",title:"Prof.",name:"Beatrice",middleName:null,surname:"Orlando",slug:"beatrice-orlando",fullName:"Beatrice Orlando"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10681",title:"Biodegradation Technology of Organic and Inorganic Pollutants",subtitle:null,isOpenForSubmission:!1,hash:"9a6e10e02788092872fd249436898e97",slug:"biodegradation-technology-of-organic-and-inorganic-pollutants",bookSignature:"Kassio Ferreira Mendes, Rodrigo Nogueira de Sousa and Kamila Cabral Mielke",coverURL:"https://cdn.intechopen.com/books/images_new/10681.jpg",editors:[{id:"197720",title:"Ph.D.",name:"Kassio",middleName:null,surname:"Ferreira Mendes",slug:"kassio-ferreira-mendes",fullName:"Kassio Ferreira Mendes"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9808",title:"Contemporary Topics in Patient Safety",subtitle:"Volume 1",isOpenForSubmission:!1,hash:"fb6371607c2c6c02c6a2af8892765aba",slug:"contemporary-topics-in-patient-safety-volume-1",bookSignature:"Stanislaw P. Stawicki and Michael S. Firstenberg",coverURL:"https://cdn.intechopen.com/books/images_new/9808.jpg",editors:[{id:"181694",title:"Dr.",name:"Stanislaw P.",middleName:null,surname:"Stawicki",slug:"stanislaw-p.-stawicki",fullName:"Stanislaw P. Stawicki"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9544",title:"Global Trade in the Emerging Business Environment",subtitle:null,isOpenForSubmission:!1,hash:"fb8cb09b9599246add78d508a98273d5",slug:"global-trade-in-the-emerging-business-environment",bookSignature:"Muhammad Mohiuddin, Jingbin Wang , Md. Samim Al Azad and Selim Ahmed",coverURL:"https://cdn.intechopen.com/books/images_new/9544.jpg",editors:[{id:"418514",title:"Dr.",name:"Muhammad",middleName:null,surname:"Mohiuddin",slug:"muhammad-mohiuddin",fullName:"Muhammad Mohiuddin"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}}],offset:12,limit:12,total:4387},hotBookTopics:{hotBooks:[],offset:0,limit:12,total:null},publish:{},publishingProposal:{success:null,errors:{}},books:{featuredBooks:[{type:"book",id:"9974",title:"E-Learning and Digital Education in the Twenty-First Century",subtitle:null,isOpenForSubmission:!1,hash:"88b58d66e975df20425fc1dfd22d53aa",slug:"e-learning-and-digital-education-in-the-twenty-first-century",bookSignature:"M. Mahruf C. Shohel",coverURL:"https://cdn.intechopen.com/books/images_new/9974.jpg",publishedDate:"May 18th 2022",numberOfDownloads:3385,editors:[{id:"94099",title:"Dr.",name:"M. Mahruf C.",middleName:null,surname:"Shohel",slug:"m.-mahruf-c.-shohel",fullName:"M. Mahruf C. Shohel"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11001",title:"Density Functional Theory",subtitle:"Recent Advances, New Perspectives and Applications",isOpenForSubmission:!1,hash:"82d53383af78ab41eb982086c02fb2bb",slug:"density-functional-theory-recent-advances-new-perspectives-and-applications",bookSignature:"Daniel Glossman-Mitnik",coverURL:"https://cdn.intechopen.com/books/images_new/11001.jpg",publishedDate:"May 18th 2022",numberOfDownloads:1875,editors:[{id:"198499",title:"Dr.",name:"Daniel",middleName:null,surname:"Glossman-Mitnik",slug:"daniel-glossman-mitnik",fullName:"Daniel Glossman-Mitnik"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10356",title:"Natural Medicinal Plants",subtitle:null,isOpenForSubmission:!1,hash:"943e56ccaaf19ff696d25aa638ae37d6",slug:"natural-medicinal-plants",bookSignature:"Hany A. El-Shemy",coverURL:"https://cdn.intechopen.com/books/images_new/10356.jpg",publishedDate:"May 11th 2022",numberOfDownloads:3842,editors:[{id:"54719",title:"Prof.",name:"Hany",middleName:null,surname:"El-Shemy",slug:"hany-el-shemy",fullName:"Hany El-Shemy"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"11752",title:"Natural Drugs from Plants",subtitle:null,isOpenForSubmission:!1,hash:"a0a83c0822608ef7592bf16a5ed0ada4",slug:"natural-drugs-from-plants",bookSignature:"Hany A. El-Shemy",coverURL:"https://cdn.intechopen.com/books/images_new/11752.jpg",publishedDate:"May 11th 2022",numberOfDownloads:3008,editors:[{id:"54719",title:"Prof.",name:"Hany",middleName:null,surname:"El-Shemy",slug:"hany-el-shemy",fullName:"Hany El-Shemy"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10251",title:"Plankton Communities",subtitle:null,isOpenForSubmission:!1,hash:"e11e441ca2d2d5f631b1b4704505cfb6",slug:"plankton-communities",bookSignature:"Leonel Pereira and Ana Marta Gonçalves",coverURL:"https://cdn.intechopen.com/books/images_new/10251.jpg",publishedDate:"May 18th 2022",numberOfDownloads:1109,editors:[{id:"279788",title:"Dr.",name:"Leonel",middleName:null,surname:"Pereira",slug:"leonel-pereira",fullName:"Leonel Pereira"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10830",title:"Animal Feed Science and Nutrition",subtitle:"Production, Health and Environment",isOpenForSubmission:!1,hash:"79944fc8fbbaa329aed6fde388154832",slug:"animal-feed-science-and-nutrition-production-health-and-environment",bookSignature:"Amlan Kumar Patra",coverURL:"https://cdn.intechopen.com/books/images_new/10830.jpg",publishedDate:"May 18th 2022",numberOfDownloads:1010,editors:[{id:"310962",title:"Dr.",name:"Amlan",middleName:"Kumar",surname:"Patra",slug:"amlan-patra",fullName:"Amlan Patra"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10584",title:"Engineered Wood Products for Construction",subtitle:null,isOpenForSubmission:!1,hash:"421757c56a3735986055250821275a51",slug:"engineered-wood-products-for-construction",bookSignature:"Meng Gong",coverURL:"https://cdn.intechopen.com/books/images_new/10584.jpg",publishedDate:"April 28th 2022",numberOfDownloads:3918,editors:[{id:"274242",title:"Dr.",name:"Meng",middleName:null,surname:"Gong",slug:"meng-gong",fullName:"Meng Gong"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9670",title:"Current Trends in Wheat Research",subtitle:null,isOpenForSubmission:!1,hash:"89d795987f1747a76eee532700d2093d",slug:"current-trends-in-wheat-research",bookSignature:"Mahmood-ur-Rahman Ansari",coverURL:"https://cdn.intechopen.com/books/images_new/9670.jpg",publishedDate:"May 11th 2022",numberOfDownloads:1654,editors:[{id:"185476",title:"Dr.",name:"Mahmood-ur-Rahman",middleName:null,surname:"Ansari",slug:"mahmood-ur-rahman-ansari",fullName:"Mahmood-ur-Rahman Ansari"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"9032",title:"Corporate Social Responsibility",subtitle:null,isOpenForSubmission:!1,hash:"f609bf3251d7cc7bae0099a4374adfc3",slug:"corporate-social-responsibility",bookSignature:"Beatrice Orlando",coverURL:"https://cdn.intechopen.com/books/images_new/9032.jpg",publishedDate:"March 16th 2022",numberOfDownloads:7686,editors:[{id:"232969",title:"Prof.",name:"Beatrice",middleName:null,surname:"Orlando",slug:"beatrice-orlando",fullName:"Beatrice Orlando"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}},{type:"book",id:"10681",title:"Biodegradation Technology of Organic and Inorganic Pollutants",subtitle:null,isOpenForSubmission:!1,hash:"9a6e10e02788092872fd249436898e97",slug:"biodegradation-technology-of-organic-and-inorganic-pollutants",bookSignature:"Kassio Ferreira Mendes, Rodrigo Nogueira de Sousa and Kamila Cabral Mielke",coverURL:"https://cdn.intechopen.com/books/images_new/10681.jpg",publishedDate:"April 20th 2022",numberOfDownloads:3444,editors:[{id:"197720",title:"Ph.D.",name:"Kassio",middleName:null,surname:"Ferreira Mendes",slug:"kassio-ferreira-mendes",fullName:"Kassio Ferreira Mendes"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter"}}],latestBooks:[{type:"book",id:"10522",title:"Coding Theory",subtitle:"Recent Advances, New Perspectives and Applications",isOpenForSubmission:!1,hash:"6357e1dd7d38adeb519ca7a10dc9e5a0",slug:"coding-theory-recent-advances-new-perspectives-and-applications",bookSignature:"Sudhakar Radhakrishnan and Sudev Naduvath",coverURL:"https://cdn.intechopen.com/books/images_new/10522.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"26327",title:"Dr.",name:"Sudhakar",middleName:null,surname:"Radhakrishnan",slug:"sudhakar-radhakrishnan",fullName:"Sudhakar Radhakrishnan"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10821",title:"Automation and Control",subtitle:"Theories and Applications",isOpenForSubmission:!1,hash:"18463c2291ba306c4dcbabd988227eea",slug:"automation-and-control-theories-and-applications",bookSignature:"Elmer P. Dadios",coverURL:"https://cdn.intechopen.com/books/images_new/10821.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"111683",title:"Prof.",name:"Elmer P.",middleName:"P.",surname:"Dadios",slug:"elmer-p.-dadios",fullName:"Elmer P. Dadios"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11348",title:"Mutagenesis and Mitochondrial-Associated Pathologies",subtitle:null,isOpenForSubmission:!1,hash:"001972b3c5b49367314b13025a449232",slug:"mutagenesis-and-mitochondrial-associated-pathologies",bookSignature:"Michael Fasullo and Angel Catala",coverURL:"https://cdn.intechopen.com/books/images_new/11348.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"258231",title:"Dr.",name:"Michael",middleName:"Thomas",surname:"Fasullo",slug:"michael-fasullo",fullName:"Michael Fasullo"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"11123",title:"Epoxy-Based Composites",subtitle:null,isOpenForSubmission:!1,hash:"c1c5447cf3b9d6c7688276ac30e80de6",slug:"epoxy-based-composites",bookSignature:"Samson Jerold Samuel Chelladurai, Ramesh Arthanari and M.R.Meera",coverURL:"https://cdn.intechopen.com/books/images_new/11123.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"247421",title:"Dr.",name:"Samson Jerold Samuel",middleName:null,surname:"Chelladurai",slug:"samson-jerold-samuel-chelladurai",fullName:"Samson Jerold Samuel Chelladurai"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10632",title:"Theory and Practice of Tunnel Engineering",subtitle:null,isOpenForSubmission:!1,hash:"7ba17749f9d0b6a62d584a3c320a1f49",slug:"theory-and-practice-of-tunnel-engineering",bookSignature:"Hasan Tosun",coverURL:"https://cdn.intechopen.com/books/images_new/10632.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"79083",title:"Prof.",name:"Hasan",middleName:null,surname:"Tosun",slug:"hasan-tosun",fullName:"Hasan Tosun"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10906",title:"Fungal Reproduction and Growth",subtitle:null,isOpenForSubmission:!1,hash:"f84de0280d54f3b52e3e4585cff24ac1",slug:"fungal-reproduction-and-growth",bookSignature:"Sadia Sultan and Gurmeet Kaur Surindar Singh",coverURL:"https://cdn.intechopen.com/books/images_new/10906.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"176737",title:"Dr.",name:"Sadia",middleName:null,surname:"Sultan",slug:"sadia-sultan",fullName:"Sadia Sultan"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10914",title:"Effective Elimination of Structural Racism",subtitle:null,isOpenForSubmission:!1,hash:"f6a2562646c0fd664aca8335bc3b3e69",slug:"effective-elimination-of-structural-racism",bookSignature:"Erick Guerrero",coverURL:"https://cdn.intechopen.com/books/images_new/10914.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"294761",title:"Dr.",name:"Erick",middleName:null,surname:"Guerrero",slug:"erick-guerrero",fullName:"Erick Guerrero"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10664",title:"Animal Reproduction",subtitle:null,isOpenForSubmission:!1,hash:"2d66af42fb17d0a6556bb9ef28e273c7",slug:"animal-reproduction",bookSignature:"Yusuf Bozkurt and Mustafa Numan Bucak",coverURL:"https://cdn.intechopen.com/books/images_new/10664.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"90846",title:"Prof.",name:"Yusuf",middleName:null,surname:"Bozkurt",slug:"yusuf-bozkurt",fullName:"Yusuf Bozkurt"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10940",title:"Plant Hormones",subtitle:"Recent Advances, New Perspectives and Applications",isOpenForSubmission:!1,hash:"5aae8a345f8047ed528914ff3491f643",slug:"plant-hormones-recent-advances-new-perspectives-and-applications",bookSignature:"Christophe Hano",coverURL:"https://cdn.intechopen.com/books/images_new/10940.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"313856",title:"Dr.",name:"Christophe",middleName:"F.E.",surname:"Hano",slug:"christophe-hano",fullName:"Christophe Hano"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10207",title:"Sexual Abuse",subtitle:"An Interdisciplinary Approach",isOpenForSubmission:!1,hash:"e1ec1d5a7093490df314d7887e0b3809",slug:"sexual-abuse-an-interdisciplinary-approach",bookSignature:"Ersi Kalfoğlu and Sotirios Kalfoglou",coverURL:"https://cdn.intechopen.com/books/images_new/10207.jpg",editedByType:"Edited by",publishedDate:"May 25th 2022",editors:[{id:"68678",title:"Dr.",name:"Ersi",middleName:null,surname:"Kalfoglou",slug:"ersi-kalfoglou",fullName:"Ersi Kalfoglou"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}]},subject:{topic:{id:"18",title:"Neuroscience",slug:"life-sciences-neuroscience",parent:{id:"2",title:"Life Sciences",slug:"life-sciences"},numberOfBooks:65,numberOfSeries:0,numberOfAuthorsAndEditors:1649,numberOfWosCitations:1070,numberOfCrossrefCitations:728,numberOfDimensionsCitations:1700,videoUrl:null,fallbackUrl:null,description:null},booksByTopicFilter:{topicId:"18",sort:"-publishedDate",limit:12,offset:0},booksByTopicCollection:[{type:"book",id:"10654",title:"Brain-Computer Interface",subtitle:null,isOpenForSubmission:!1,hash:"a5308884068cc53ed31c6baba756857f",slug:"brain-computer-interface",bookSignature:"Vahid Asadpour",coverURL:"https://cdn.intechopen.com/books/images_new/10654.jpg",editedByType:"Edited by",editors:[{id:"165328",title:"Dr.",name:"Vahid",middleName:null,surname:"Asadpour",slug:"vahid-asadpour",fullName:"Vahid Asadpour"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10922",title:"Music in Health and Diseases",subtitle:null,isOpenForSubmission:!1,hash:"6a079df045b086b404399c5ed4ac049a",slug:"music-in-health-and-diseases",bookSignature:"Amit Agrawal, Roshan Sutar and Anvesh Jallapally",coverURL:"https://cdn.intechopen.com/books/images_new/10922.jpg",editedByType:"Edited by",editors:[{id:"100142",title:"Prof.",name:"Amit",middleName:null,surname:"Agrawal",slug:"amit-agrawal",fullName:"Amit Agrawal"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10554",title:"Proprioception",subtitle:null,isOpenForSubmission:!1,hash:"e104e615fbd94caa987df3a8d8b3fb8b",slug:"proprioception",bookSignature:"José A. Vega and Juan Cobo",coverURL:"https://cdn.intechopen.com/books/images_new/10554.jpg",editedByType:"Edited by",editors:[{id:"59892",title:"Prof.",name:"José A.",middleName:null,surname:"Vega",slug:"jose-a.-vega",fullName:"José A. Vega"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9853",title:"Connectivity and Functional Specialization in the Brain",subtitle:null,isOpenForSubmission:!1,hash:"79f611488f3217579b5c84978f870863",slug:"connectivity-and-functional-specialization-in-the-brain",bookSignature:"Thomas Heinbockel and Yongxia Zhou",coverURL:"https://cdn.intechopen.com/books/images_new/9853.jpg",editedByType:"Edited by",editors:[{id:"70569",title:"Dr.",name:"Thomas",middleName:null,surname:"Heinbockel",slug:"thomas-heinbockel",fullName:"Thomas Heinbockel"}],equalEditorOne:{id:"259308",title:"Dr.",name:"Yongxia",middleName:null,surname:"Zhou",slug:"yongxia-zhou",fullName:"Yongxia Zhou",profilePictureURL:"https://mts.intechopen.com/storage/users/259308/images/system/259308.jpeg",biography:"Yongxia Zhou obtained a Ph.D. in Biomedical Imaging from the University of Southern California. Her research interest is radiology and neuroscience technology and application. She had been trained as an imaging scientist at several prestigious institutes including Columbia University, the University of Pennsylvania, and the National Institutes of Health (NIH). Her research focuses on multi-modal neuroimaging integration such as MRI/PET and EEG/MEG instrumentation to make the best use of multiple modalities for better interpretation of underlying disease mechanisms. She is the author and editor of more than twelve books for well-known publishers including IntechOpen and Nova Science. She has published more than 100 papers and abstracts in many reputed international journals and conferences and served as reviewer and editor for several academic associations.",institutionString:"University of Southern California",position:null,outsideEditionCount:0,totalCites:0,totalAuthoredChapters:"2",totalChapterViews:"0",totalEditedBooks:"4",institution:{name:"University of Southern California",institutionURL:null,country:{name:"United States of America"}}},equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9629",title:"Electroencephalography",subtitle:"From Basic Research to Clinical Applications",isOpenForSubmission:!1,hash:"8147834b6c6deeeec40f407c71ad60b4",slug:"electroencephalography-from-basic-research-to-clinical-applications",bookSignature:"Hideki Nakano",coverURL:"https://cdn.intechopen.com/books/images_new/9629.jpg",editedByType:"Edited by",editors:[{id:"196461",title:"Prof.",name:"Hideki",middleName:null,surname:"Nakano",slug:"hideki-nakano",fullName:"Hideki Nakano"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"10475",title:"Smart Biofeedback",subtitle:"Perspectives and Applications",isOpenForSubmission:!1,hash:"8d2bd9997707c905959eaa41e55ba8f1",slug:"smart-biofeedback-perspectives-and-applications",bookSignature:"Edward Da-Yin Liao",coverURL:"https://cdn.intechopen.com/books/images_new/10475.jpg",editedByType:"Edited by",editors:[{id:"3875",title:"Dr.",name:"Edward Da-Yin",middleName:null,surname:"Liao",slug:"edward-da-yin-liao",fullName:"Edward Da-Yin Liao"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"8059",title:"Neurostimulation and Neuromodulation in Contemporary Therapeutic Practice",subtitle:null,isOpenForSubmission:!1,hash:"8cc2c649900edf37ff3374fdc96a1586",slug:"neurostimulation-and-neuromodulation-in-contemporary-therapeutic-practice",bookSignature:"Denis Larrivee and Seyed Mansoor Rayegani",coverURL:"https://cdn.intechopen.com/books/images_new/8059.jpg",editedByType:"Edited by",editors:[{id:"206412",title:"Prof.",name:"Denis",middleName:null,surname:"Larrivee",slug:"denis-larrivee",fullName:"Denis Larrivee"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"8851",title:"Advances in Neural Signal Processing",subtitle:null,isOpenForSubmission:!1,hash:"a44ac118b233b29a3d5b57d61680ec38",slug:"advances-in-neural-signal-processing",bookSignature:"Ramana Vinjamuri",coverURL:"https://cdn.intechopen.com/books/images_new/8851.jpg",editedByType:"Edited by",editors:[{id:"196746",title:"Dr.",name:"Ramana",middleName:null,surname:"Vinjamuri",slug:"ramana-vinjamuri",fullName:"Ramana Vinjamuri"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"8751",title:"Somatosensory and Motor Research",subtitle:null,isOpenForSubmission:!1,hash:"86191c18f06e524e0f97a5534fdb2b4c",slug:"somatosensory-and-motor-research",bookSignature:"Toshiaki Suzuki",coverURL:"https://cdn.intechopen.com/books/images_new/8751.jpg",editedByType:"Edited by",editors:[{id:"70872",title:"Prof.",name:"Toshiaki",middleName:null,surname:"Suzuki",slug:"toshiaki-suzuki",fullName:"Toshiaki Suzuki"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"9347",title:"Neuroimaging",subtitle:"Neurobiology, Multimodal and Network Applications",isOpenForSubmission:!1,hash:"a3479e76c6ac538aac76409c9efb7e41",slug:"neuroimaging-neurobiology-multimodal-and-network-applications",bookSignature:"Yongxia Zhou",coverURL:"https://cdn.intechopen.com/books/images_new/9347.jpg",editedByType:"Edited by",editors:[{id:"259308",title:"Dr.",name:"Yongxia",middleName:null,surname:"Zhou",slug:"yongxia-zhou",fullName:"Yongxia Zhou"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"8938",title:"Inhibitory Control Training",subtitle:"A Multidisciplinary Approach",isOpenForSubmission:!1,hash:"bd82354f3bba4af5421337cd42052f86",slug:"inhibitory-control-training-a-multidisciplinary-approach",bookSignature:"Sara Palermo and Massimo Bartoli",coverURL:"https://cdn.intechopen.com/books/images_new/8938.jpg",editedByType:"Edited by",editors:[{id:"233998",title:"Ph.D.",name:"Sara",middleName:null,surname:"Palermo",slug:"sara-palermo",fullName:"Sara Palermo"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}},{type:"book",id:"6998",title:"Synucleins",subtitle:"Biochemistry and Role in Diseases",isOpenForSubmission:!1,hash:"2b4b802fec508928ce8ab9deebd1375f",slug:"synucleins-biochemistry-and-role-in-diseases",bookSignature:"Andrei Surguchov",coverURL:"https://cdn.intechopen.com/books/images_new/6998.jpg",editedByType:"Edited by",editors:[{id:"266540",title:"Dr.",name:"Andrei",middleName:null,surname:"Surguchov",slug:"andrei-surguchov",fullName:"Andrei Surguchov"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null,productType:{id:"1",chapterContentType:"chapter",authoredCaption:"Edited by"}}],booksByTopicTotal:65,seriesByTopicCollection:[],seriesByTopicTotal:0,mostCitedChapters:[{id:"46296",doi:"10.5772/57398",title:"Physiological Role of Amyloid Beta in Neural Cells: The Cellular Trophic Activity",slug:"physiological-role-of-amyloid-beta-in-neural-cells-the-cellular-trophic-activity",totalDownloads:5886,totalCrossrefCites:18,totalDimensionsCites:31,abstract:null,book:{id:"3846",slug:"neurochemistry",title:"Neurochemistry",fullTitle:"Neurochemistry"},signatures:"M. del C. 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. Luna-Muñoz and M.A.\nMeraz-Ríos",authors:[{id:"42225",title:"Dr.",name:"Jose",middleName:null,surname:"Luna-Muñoz",slug:"jose-luna-munoz",fullName:"Jose Luna-Muñoz"},{id:"114746",title:"Dr.",name:"Marco",middleName:null,surname:"Meraz-Ríos",slug:"marco-meraz-rios",fullName:"Marco Meraz-Ríos"},{id:"169616",title:"Dr.",name:"Maria del Carmen",middleName:null,surname:"Cardenas-Aguayo",slug:"maria-del-carmen-cardenas-aguayo",fullName:"Maria del Carmen Cardenas-Aguayo"},{id:"169857",title:"Dr.",name:"Maria del Carmen",middleName:null,surname:"Silva-Lucero",slug:"maria-del-carmen-silva-lucero",fullName:"Maria del Carmen Silva-Lucero"},{id:"169858",title:"Dr.",name:"Maribel",middleName:null,surname:"Cortes-Ortiz",slug:"maribel-cortes-ortiz",fullName:"Maribel Cortes-Ortiz"},{id:"169859",title:"Dr.",name:"Berenice",middleName:null,surname:"Jimenez-Ramos",slug:"berenice-jimenez-ramos",fullName:"Berenice Jimenez-Ramos"},{id:"169860",title:"Dr.",name:"Laura",middleName:null,surname:"Gomez-Virgilio",slug:"laura-gomez-virgilio",fullName:"Laura Gomez-Virgilio"},{id:"169861",title:"Dr.",name:"Gerardo",middleName:null,surname:"Ramirez-Rodriguez",slug:"gerardo-ramirez-rodriguez",fullName:"Gerardo Ramirez-Rodriguez"},{id:"169862",title:"Dr.",name:"Eduardo",middleName:null,surname:"Vera-Arroyo",slug:"eduardo-vera-arroyo",fullName:"Eduardo Vera-Arroyo"},{id:"169863",title:"Dr.",name:"Rosana Sofia",middleName:null,surname:"Fiorentino-Perez",slug:"rosana-sofia-fiorentino-perez",fullName:"Rosana Sofia Fiorentino-Perez"},{id:"169864",title:"Dr.",name:"Ubaldo",middleName:null,surname:"Garcia",slug:"ubaldo-garcia",fullName:"Ubaldo Garcia"}]},{id:"58070",doi:"10.5772/intechopen.72427",title:"MRI Medical Image Denoising by Fundamental Filters",slug:"mri-medical-image-denoising-by-fundamental-filters",totalDownloads:2564,totalCrossrefCites:17,totalDimensionsCites:30,abstract:"Nowadays Medical imaging technique Magnetic Resonance Imaging (MRI) plays an important role in medical setting to form high standard images contained in the human brain. 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. Watt",authors:[{id:"145620",title:"Dr.",name:"Gina",middleName:null,surname:"Forster",slug:"gina-forster",fullName:"Gina Forster"},{id:"146553",title:"BSc.",name:"Andrew",middleName:null,surname:"Novick",slug:"andrew-novick",fullName:"Andrew Novick"},{id:"146554",title:"MSc.",name:"Jamie",middleName:null,surname:"Scholl",slug:"jamie-scholl",fullName:"Jamie Scholl"},{id:"146555",title:"Dr.",name:"Michael",middleName:null,surname:"Watt",slug:"michael-watt",fullName:"Michael Watt"}]},{id:"26258",doi:"10.5772/28300",title:"Excitotoxicity and Oxidative Stress in Acute Ischemic Stroke",slug:"excitotoxicity-and-oxidative-stress-in-acute-ischemic-stroke",totalDownloads:7157,totalCrossrefCites:6,totalDimensionsCites:25,abstract:null,book:{id:"931",slug:"acute-ischemic-stroke",title:"Acute Ischemic Stroke",fullTitle:"Acute Ischemic Stroke"},signatures:"Ramón Rama Bretón and Julio César García Rodríguez",authors:[{id:"73430",title:"Prof.",name:"Ramon",middleName:null,surname:"Rama",slug:"ramon-rama",fullName:"Ramon Rama"},{id:"124643",title:"Prof.",name:"Julio Cesar",middleName:null,surname:"García",slug:"julio-cesar-garcia",fullName:"Julio Cesar García"}]},{id:"62072",doi:"10.5772/intechopen.78695",title:"Brain-Computer Interface and Motor Imagery Training: The Role of Visual Feedback and Embodiment",slug:"brain-computer-interface-and-motor-imagery-training-the-role-of-visual-feedback-and-embodiment",totalDownloads:1439,totalCrossrefCites:13,totalDimensionsCites:23,abstract:"Controlling a brain-computer interface (BCI) is a difficult task that requires extensive training. 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. Vaccaro",authors:[{id:"91165",title:"Prof.",name:"Vafa",middleName:null,surname:"Rahimi-Movaghar",slug:"vafa-rahimi-movaghar",fullName:"Vafa Rahimi-Movaghar"}]},{id:"63258",title:"Anatomy and Function of the Hypothalamus",slug:"anatomy-and-function-of-the-hypothalamus",totalDownloads:4558,totalCrossrefCites:6,totalDimensionsCites:12,abstract:"The hypothalamus is a small but important area of the brain formed by various nucleus and nervous fibers. Through its neuronal connections, it is involved in many complex functions of the organism such as vegetative system control, homeostasis of the organism, thermoregulation, and also in adjusting the emotional behavior. The hypothalamus is involved in different daily activities like eating or drinking, in the control of the body’s temperature and energy maintenance, and in the process of memorizing. It also modulates the endocrine system through its connections with the pituitary gland. 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:20,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:"13",title:"Veterinary Medicine and Science",doi:"10.5772/intechopen.73681",issn:"2632-0517",scope:"Paralleling similar advances in the medical field, astounding advances occurred in Veterinary Medicine and Science in recent decades. These advances have helped foster better support for animal health, more humane animal production, and a better understanding of the physiology of endangered species to improve the assisted reproductive technologies or the pathogenesis of certain diseases, where animals can be used as models for human diseases (like cancer, degenerative diseases or fertility), and even as a guarantee of public health. Bridging Human, Animal, and Environmental health, the holistic and integrative “One Health” concept intimately associates the developments within those fields, projecting its advancements into practice. This book series aims to tackle various animal-related medicine and sciences fields, providing thematic volumes consisting of high-quality significant research directed to researchers and postgraduates. It aims to give us a glimpse into the new accomplishments in the Veterinary Medicine and Science field. By addressing hot topics in veterinary sciences, we aim to gather authoritative texts within each issue of this series, providing in-depth overviews and analysis for graduates, academics, and practitioners and foreseeing a deeper understanding of the subject. Forthcoming texts, written and edited by experienced researchers from both industry and academia, will also discuss scientific challenges faced today in Veterinary Medicine and Science. In brief, we hope that books in this series will provide accessible references for those interested or working in this field and encourage learning in a range of different topics.",coverUrl:"https://cdn.intechopen.com/series/covers/13.jpg",latestPublicationDate:"May 25th, 2022",hasOnlineFirst:!0,numberOfPublishedBooks:11,editor:{id:"38652",title:"Prof.",name:"Rita",middleName:null,surname:"Payan-Carreira",slug:"rita-payan-carreira",fullName:"Rita Payan-Carreira",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRiFPQA0/Profile_Picture_1614601496313",biography:"Rita Payan Carreira earned her Veterinary Degree from the Faculty of Veterinary Medicine in Lisbon, Portugal, in 1985. She obtained her Ph.D. in Veterinary Sciences from the University of Trás-os-Montes e Alto Douro, Portugal. After almost 32 years of teaching at the University of Trás-os-Montes and Alto Douro, she recently moved to the University of Évora, Department of Veterinary Medicine, where she teaches in the field of Animal Reproduction and Clinics. Her primary research areas include the molecular markers of the endometrial cycle and the embryo–maternal interaction, including oxidative stress and the reproductive physiology and disorders of sexual development, besides the molecular determinants of male and female fertility. She often supervises students preparing their master's or doctoral theses. She is also a frequent referee for various journals.",institutionString:null,institution:{name:"University of Évora",institutionURL:null,country:{name:"Portugal"}}},editorTwo:null,editorThree:null},subseries:{paginationCount:3,paginationItems:[{id:"19",title:"Animal Science",coverUrl:"https://cdn.intechopen.com/series_topics/covers/19.jpg",isOpenForSubmission:!0,annualVolume:11415,editor:{id:"259298",title:"Dr.",name:"Edward",middleName:null,surname:"Narayan",slug:"edward-narayan",fullName:"Edward Narayan",profilePictureURL:"https://mts.intechopen.com/storage/users/259298/images/system/259298.jpeg",biography:"Dr. Edward Narayan graduated with Ph.D. degree in Biology from the University of the South Pacific and pioneered non-invasive reproductive and stress endocrinology tools for amphibians - the novel development and validation of non-invasive enzyme immunoassays for the evaluation of reproductive hormonal cycle and stress hormone responses to environmental stressors. \nDr. Narayan leads the Stress Lab (Comparative Physiology and Endocrinology) at the University of Queensland. A dynamic career research platform which is based on the thematic areas of comparative vertebrate physiology, stress endocrinology, reproductive endocrinology, animal health and welfare, and conservation biology. \nEdward has supervised 40 research students and published over 60 peer reviewed research.",institutionString:null,institution:{name:"University of Queensland",institutionURL:null,country:{name:"Australia"}}},editorTwo:null,editorThree:null},{id:"20",title:"Animal Nutrition",coverUrl:"https://cdn.intechopen.com/series_topics/covers/20.jpg",isOpenForSubmission:!0,annualVolume:11416,editor:{id:"175967",title:"Dr.",name:"Manuel",middleName:null,surname:"Gonzalez Ronquillo",slug:"manuel-gonzalez-ronquillo",fullName:"Manuel Gonzalez Ronquillo",profilePictureURL:"https://mts.intechopen.com/storage/users/175967/images/system/175967.png",biography:"Dr. Manuel González Ronquillo obtained his doctorate degree from the University of Zaragoza, Spain, in 2001. He is a research professor at the Faculty of Veterinary Medicine and Animal Husbandry, Autonomous University of the State of Mexico. He is also a level-2 researcher. He received a Fulbright-Garcia Robles fellowship for a postdoctoral stay at the US Dairy Forage Research Center, Madison, Wisconsin, USA in 2008–2009. He received grants from Alianza del Pacifico for a stay at the University of Magallanes, Chile, in 2014, and from Consejo Nacional de Ciencia y Tecnología (CONACyT) to work in the Food and Agriculture Organization’s Animal Production and Health Division (AGA), Rome, Italy, in 2014–2015. He has collaborated with researchers from different countries and published ninety-eight journal articles. He teaches various degree courses in zootechnics, sheep production, and agricultural sciences and natural resources.\n\nDr. Ronquillo’s research focuses on the evaluation of sustainable animal diets (StAnD), using native resources of the region, decreasing carbon footprint, and applying meta-analysis and mathematical models for a better understanding of animal production.",institutionString:null,institution:{name:"Universidad Autónoma del Estado de México",institutionURL:null,country:{name:"Mexico"}}},editorTwo:null,editorThree:null},{id:"28",title:"Animal Reproductive Biology and Technology",coverUrl:"https://cdn.intechopen.com/series_topics/covers/28.jpg",isOpenForSubmission:!0,annualVolume:11417,editor:{id:"177225",title:"Prof.",name:"Rosa Maria Lino Neto",middleName:null,surname:"Pereira",slug:"rosa-maria-lino-neto-pereira",fullName:"Rosa Maria Lino Neto Pereira",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bS9wkQAC/Profile_Picture_1624519982291",biography:"Rosa Maria Lino Neto Pereira (DVM, MsC, PhD and) is currently a researcher at the Genetic Resources and Biotechnology Unit of the National Institute of Agrarian and Veterinarian Research (INIAV, Portugal). She is the head of the Reproduction and Embryology Laboratories and was lecturer of Reproduction and Reproductive Biotechnologies at Veterinary Medicine Faculty. She has over 25 years of experience working in reproductive biology and biotechnology areas with a special emphasis on embryo and gamete cryopreservation, for research and animal genetic resources conservation, leading research projects with several peer-reviewed papers. Rosa Pereira is member of the ERFP-FAO Ex situ Working Group and of the Management Commission of the Portuguese Animal Germplasm Bank.",institutionString:"The National Institute for Agricultural and Veterinary Research. Portugal",institution:null},editorTwo:null,editorThree:null}]},overviewPageOFChapters:{paginationCount:1,paginationItems:[{id:"81831",title:"Deep Network Model and Regression Analysis using OLS Method for Predicting Lung Vital Capacity",doi:"10.5772/intechopen.104737",signatures:"Harun Sümbül",slug:"deep-network-model-and-regression-analysis-using-ols-method-for-predicting-lung-vital-capacity",totalDownloads:3,totalCrossrefCites:0,totalDimensionsCites:0,authors:null,book:{title:"Decision Science - Recent Advances and Applications",coverURL:"https://cdn.intechopen.com/books/images_new/11604.jpg",subseries:{id:"86",title:"Business and Management"}}}]},overviewPagePublishedBooks:{paginationCount:1,paginationItems:[{type:"book",id:"11392",title:"Leadership in a Changing World",subtitle:"A Multidimensional Perspective",coverURL:"https://cdn.intechopen.com/books/images_new/11392.jpg",slug:"leadership-in-a-changing-world-a-multidimensional-perspective",publishedDate:"May 11th 2022",editedByType:"Edited by",bookSignature:"Muhammad Mohiuddin, Bilal Khalid, Md. Samim Al Azad and Slimane Ed-dafali",hash:"86a6d33cf601587e591064ce92effc02",volumeInSeries:1,fullTitle:"Leadership in a Changing World - A Multidimensional Perspective",editors:[{id:"418514",title:"Dr.",name:"Muhammad",middleName:null,surname:"Mohiuddin",slug:"muhammad-mohiuddin",fullName:"Muhammad Mohiuddin",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0033Y000038UqSfQAK/Profile_Picture_2022-05-13T10:39:03.jpg",biography:"Dr. Muhammad Mohiuddin is an Associate Professor of International Business at Laval University, Canada. He has taught at Thompson Rivers University, Canada; University of Paris-Est, France; Osnabruck University of Applied Science, Germany; and Shanghai Institute of Technology and Tianjin University of Technology, China. He has published research in Research Policy, Applied Economics, Review of Economic Philosophy, Strategic Change, International Journal of Logistics, Sustainability, Journal of Environmental Management, Journal of Global Information Management, Journal of Cleaner Production, M@N@GEMENT, and more. He is a member of CEDIMES Institut (France), Academy of International Business (AIB), Strategic Management Society (SMS), Academy of Management (AOM), Administrative Science Association of Canada (ASAC), and Canadian council of small business and entrepreneurship (CCSBE). He is currently the director of the Research Group on Contemporary Asia (GERAC) at Laval University. He is also co-managing editor of Transnational Corporations Review and a guest editor for Electronic Commerce Research and Journal of Internet Technology.",institutionString:"Université Laval",institution:{name:"Université Laval",institutionURL:null,country:{name:"Canada"}}}]}]},openForSubmissionBooks:{paginationCount:2,paginationItems:[{id:"11579",title:"Animal Welfare - New Insights",coverURL:"https://cdn.intechopen.com/books/images_new/11579.jpg",hash:"12e4f41264cbe99028655e5463fa941a",secondStepPassed:!1,currentStepOfPublishingProcess:2,submissionDeadline:"June 1st 2022",isOpenForSubmission:!0,editors:[{id:"51520",title:"Dr.",name:"Shao-Wen",surname:"Hung",slug:"shao-wen-hung",fullName:"Shao-Wen Hung"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{id:"11578",title:"Antibiotics and Probiotics in Animal Food - Impact and Regulation",coverURL:"https://cdn.intechopen.com/books/images_new/11578.jpg",hash:"3731c009f474c6ed4293f348ca7b27ac",secondStepPassed:!1,currentStepOfPublishingProcess:2,submissionDeadline:"June 3rd 2022",isOpenForSubmission:!0,editors:[{id:"225390",title:"Dr.",name:"Asghar Ali",surname:"Kamboh",slug:"asghar-ali-kamboh",fullName:"Asghar Ali Kamboh"}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},onlineFirstChapters:{paginationCount:0,paginationItems:[]},subseriesFiltersForOFChapters:[],publishedBooks:{},subseriesFiltersForPublishedBooks:[],publicationYearFilters:[],authors:{}},subseries:{item:{id:"28",type:"subseries",title:"Animal Reproductive Biology and Technology",keywords:"Animal Reproduction, Artificial Insemination, Embryos, Cryopreservation, Conservation, Breeding, Epigenetics",scope:"The advances of knowledge on animal reproductive biology and technologies revolutionized livestock production. Artificial insemination, for example, was the first technology applied on a large scale, initially in dairy cattle and afterward applied to other species. Nowadays, embryo production and transfer are used commercially along with other technologies to modulate epigenetic regulation. Gene editing is also emerging as an innovative tool. This topic will discuss the potential use of these techniques, novel strategies, and lines of research in progress in the fields mentioned above.",coverUrl:"https://cdn.intechopen.com/series_topics/covers/28.jpg",hasOnlineFirst:!1,hasPublishedBooks:!0,annualVolume:11417,editor:{id:"177225",title:"Prof.",name:"Rosa Maria Lino Neto",middleName:null,surname:"Pereira",slug:"rosa-maria-lino-neto-pereira",fullName:"Rosa Maria Lino Neto Pereira",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bS9wkQAC/Profile_Picture_1624519982291",biography:"Rosa Maria Lino Neto Pereira (DVM, MsC, PhD and) is currently a researcher at the Genetic Resources and Biotechnology Unit of the National Institute of Agrarian and Veterinarian Research (INIAV, Portugal). She is the head of the Reproduction and Embryology Laboratories and was lecturer of Reproduction and Reproductive Biotechnologies at Veterinary Medicine Faculty. She has over 25 years of experience working in reproductive biology and biotechnology areas with a special emphasis on embryo and gamete cryopreservation, for research and animal genetic resources conservation, leading research projects with several peer-reviewed papers. Rosa Pereira is member of the ERFP-FAO Ex situ Working Group and of the Management Commission of the Portuguese Animal Germplasm Bank.",institutionString:"The National Institute for Agricultural and Veterinary Research. Portugal",institution:null},editorTwo:null,editorThree:null,series:{id:"13",title:"Veterinary Medicine and Science",doi:"10.5772/intechopen.73681",issn:"2632-0517"},editorialBoard:[{id:"90066",title:"Dr.",name:"Alexandre",middleName:"Rodrigues",surname:"Silva",slug:"alexandre-silva",fullName:"Alexandre Silva",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRt8pQAC/Profile_Picture_1622531020756",institutionString:null,institution:{name:"Universidade Federal Rural do Semi-Árido",institutionURL:null,country:{name:"Brazil"}}},{id:"176987",title:"Ph.D.",name:"María-José",middleName:"Carrascosa",surname:"Argente",slug:"maria-jose-argente",fullName:"María-José Argente",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bS9vOQAS/Profile_Picture_1630330499537",institutionString:null,institution:{name:"Miguel Hernandez University",institutionURL:null,country:{name:"Spain"}}},{id:"321396",title:"Prof.",name:"Muhammad Subhan",middleName:null,surname:"Qureshi",slug:"muhammad-subhan-qureshi",fullName:"Muhammad Subhan Qureshi",profilePictureURL:"https://mts.intechopen.com/storage/users/321396/images/system/321396.jpg",institutionString:null,institution:{name:"University of Agriculture",institutionURL:null,country:{name:"Pakistan"}}},{id:"183723",title:"Dr.",name:"Xiaojun",middleName:null,surname:"Liu",slug:"xiaojun-liu",fullName:"Xiaojun Liu",profilePictureURL:"https://mts.intechopen.com/storage/users/183723/images/system/183723.jpg",institutionString:null,institution:null}]},onlineFirstChapters:{paginationCount:0,paginationItems:[]},publishedBooks:{paginationCount:4,paginationItems:[{type:"book",id:"10664",title:"Animal Reproduction",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/10664.jpg",slug:"animal-reproduction",publishedDate:"May 25th 2022",editedByType:"Edited by",bookSignature:"Yusuf Bozkurt and Mustafa Numan Bucak",hash:"2d66af42fb17d0a6556bb9ef28e273c7",volumeInSeries:11,fullTitle:"Animal Reproduction",editors:[{id:"90846",title:"Prof.",name:"Yusuf",middleName:null,surname:"Bozkurt",slug:"yusuf-bozkurt",fullName:"Yusuf Bozkurt",profilePictureURL:"https://mts.intechopen.com/storage/users/90846/images/system/90846.jpg",institutionString:"İskenderun Technical University",institution:{name:"İskenderun Technical University",institutionURL:null,country:{name:"Turkey"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"8545",title:"Animal Reproduction in Veterinary Medicine",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/8545.jpg",slug:"animal-reproduction-in-veterinary-medicine",publishedDate:"January 20th 2021",editedByType:"Edited by",bookSignature:"Faruk Aral, Rita Payan-Carreira and Miguel Quaresma",hash:"13aaddf5fdbbc78387e77a7da2388bf6",volumeInSeries:6,fullTitle:"Animal Reproduction in Veterinary Medicine",editors:[{id:"25600",title:"Prof.",name:"Faruk",middleName:null,surname:"Aral",slug:"faruk-aral",fullName:"Faruk Aral",profilePictureURL:"https://mts.intechopen.com/storage/users/25600/images/system/25600.jpg",institutionString:"Independent Researcher",institution:{name:"Harran University",institutionURL:null,country:{name:"Turkey"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"8460",title:"Reproductive Biology and Technology in Animals",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/8460.jpg",slug:"reproductive-biology-and-technology-in-animals",publishedDate:"April 15th 2020",editedByType:"Edited by",bookSignature:"Juan Carlos Gardón Poggi and Katy Satué Ambrojo",hash:"32ef5fe73998dd723d308225d756fa1e",volumeInSeries:4,fullTitle:"Reproductive Biology and Technology in Animals",editors:[{id:"251314",title:"Dr.",name:"Juan Carlos",middleName:null,surname:"Gardón",slug:"juan-carlos-gardon",fullName:"Juan Carlos Gardón",profilePictureURL:"https://mts.intechopen.com/storage/users/251314/images/system/251314.jpeg",institutionString:"Catholic University of Valencia San Vicente Mártir, Spain",institution:null}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null},{type:"book",id:"7233",title:"New Insights into Theriogenology",subtitle:null,coverURL:"https://cdn.intechopen.com/books/images_new/7233.jpg",slug:"new-insights-into-theriogenology",publishedDate:"December 5th 2018",editedByType:"Edited by",bookSignature:"Rita Payan-Carreira",hash:"74f4147e3fb214dd050e5edd3aaf53bc",volumeInSeries:1,fullTitle:"New Insights into Theriogenology",editors:[{id:"38652",title:"Prof.",name:"Rita",middleName:null,surname:"Payan-Carreira",slug:"rita-payan-carreira",fullName:"Rita Payan-Carreira",profilePictureURL:"https://s3.us-east-1.amazonaws.com/intech-files/0030O00002bRiFPQA0/Profile_Picture_1614601496313",institutionString:null,institution:{name:"University of Évora",institutionURL:null,country:{name:"Portugal"}}}],equalEditorOne:null,equalEditorTwo:null,equalEditorThree:null}]},testimonialsList:[{id:"8",text:"I work with IntechOpen for a number of reasons: their professionalism, their mission in support of Open Access publishing, and the quality of their peer-reviewed publications, but also because they believe in equality.",author:{id:"202192",name:"Catrin",surname:"Rutland",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/202192/images/system/202192.png",slug:"catrin-rutland",institution:{id:"134",name:"University of Nottingham",country:{id:null,name:"United Kingdom"}}}},{id:"27",text:"The opportunity to work with a prestigious publisher allows for the possibility to collaborate with more research groups interested in animal nutrition, leading to the development of new feeding strategies and food valuation while being more sustainable with the environment, allowing more readers to learn about the subject.",author:{id:"175967",name:"Manuel",surname:"Gonzalez Ronquillo",institutionString:null,profilePictureURL:"https://mts.intechopen.com/storage/users/175967/images/system/175967.png",slug:"manuel-gonzalez-ronquillo",institution:{id:"6221",name:"Universidad Autónoma del Estado de México",country:{id:null,name:"Mexico"}}}},{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"}}}}]},submityourwork:{pteSeriesList:[],lsSeriesList:[],hsSeriesList:[],sshSeriesList:[],subseriesList:[{id:"22",title:"Applied Intelligence",scope:"This field is the key in the current industrial revolution (Industry 4.0), where the new models and developments are based on the knowledge generation on applied intelligence. The motor of the society is the industry and the research of this topic has to be empowered in order to increase and improve the quality of our lives.",coverUrl:"https://cdn.intechopen.com/series_topics/covers/22.jpg",keywords:"Machine Learning, Intelligence Algorithms, Data Science, Artificial Intelligence, Applications on Applied Intelligence"},{id:"23",title:"Computational Neuroscience",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",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"},{id:"24",title:"Computer Vision",scope:"The scope of this topic is to disseminate the recent advances in the rapidly growing field of computer vision from both the theoretical and practical points of view. Novel computational algorithms for image analysis, scene understanding, biometrics, deep learning and their software or hardware implementations for natural and medical images, robotics, VR/AR, applications are some research directions relevant to this topic.",coverUrl:"https://cdn.intechopen.com/series_topics/covers/24.jpg",keywords:"Image Analysis, Scene Understanding, Biometrics, Deep Learning, Software Implementation, Hardware Implementation, Natural Images, Medical Images, Robotics, VR/AR"},{id:"25",title:"Evolutionary Computation",scope:"Evolutionary computing is a paradigm that has grown dramatically in recent years. This group of bio-inspired metaheuristics solves multiple optimization problems by applying the metaphor of natural selection. It so far has solved problems such as resource allocation, routing, schedule planning, and engineering design. Moreover, in the field of machine learning, evolutionary computation has carved out a significant niche both in the generation of learning models and in the automatic design and optimization of hyperparameters in deep learning models. This collection aims to include quality volumes on various topics related to evolutionary algorithms and, alternatively, other metaheuristics of interest inspired by nature. For example, some of the issues of interest could be the following: Advances in evolutionary computation (Genetic algorithms, Genetic programming, Bio-inspired metaheuristics, Hybrid metaheuristics, Parallel ECs); Applications of evolutionary algorithms (Machine learning and Data Mining with EAs, Search-Based Software Engineering, Scheduling, and Planning Applications, Smart Transport Applications, Applications to Games, Image Analysis, Signal Processing and Pattern Recognition, Applications to Sustainability).",coverUrl:"https://cdn.intechopen.com/series_topics/covers/25.jpg",keywords:"Genetic Algorithms, Genetic Programming, Evolutionary Programming, Evolution Strategies, Hybrid Algorithms, Bioinspired Metaheuristics, Ant Colony Optimization, Evolutionary Learning, Hyperparameter Optimization"},{id:"26",title:"Machine Learning and Data Mining",scope:"The scope of machine learning and data mining is immense and is growing every day. It has become a massive part of our daily lives, making predictions based on experience, making this a fascinating area that solves problems that otherwise would not be possible or easy to solve. This topic aims to encompass algorithms that learn from experience (supervised and unsupervised), improve their performance over time and enable machines to make data-driven decisions. It is not limited to any particular applications, but contributions are encouraged from all disciplines.",coverUrl:"https://cdn.intechopen.com/series_topics/covers/26.jpg",keywords:"Intelligent Systems, Machine Learning, Data Science, Data Mining, Artificial Intelligence"},{id:"27",title:"Multi-Agent Systems",scope:"Multi-agent systems are recognised as a state of the art field in Artificial Intelligence studies, which is popular due to the usefulness in facilitation capabilities to handle real-world problem-solving in a distributed fashion. The area covers many techniques that offer solutions to emerging problems in robotics and enterprise-level software systems. Collaborative intelligence is highly and effectively achieved with multi-agent systems. Areas of application include swarms of robots, flocks of UAVs, collaborative software management. Given the level of technological enhancements, the popularity of machine learning in use has opened a new chapter in multi-agent studies alongside the practical challenges and long-lasting collaboration issues in the field. It has increased the urgency and the need for further studies in this field. We welcome chapters presenting research on the many applications of multi-agent studies including, but not limited to, the following key areas: machine learning for multi-agent systems; modeling swarms robots and flocks of UAVs with multi-agent systems; decision science and multi-agent systems; software engineering for and with multi-agent systems; tools and technologies of multi-agent systems.",coverUrl:"https://cdn.intechopen.com/series_topics/covers/27.jpg",keywords:"Collaborative Intelligence, Learning, Distributed Control System, Swarm Robotics, Decision Science, Software Engineering"}],annualVolumeBook:{},thematicCollection:[],selectedSeries:{title:"Artificial Intelligence",id:"14"},selectedSubseries:null},seriesLanding:{item:null},libraryRecommendation:{success:null,errors:{},institutions:[]},route:{name:"profile.detail",path:"/profiles/340258",hash:"",query:{},params:{id:"340258"},fullPath:"/profiles/340258",meta:{},from:{name:null,path:"/",hash:"",query:{},params:{},fullPath:"/",meta:{}}}},function(){var m;(m=document.currentScript||document.scripts[document.scripts.length-1]).parentNode.removeChild(m)}()