Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803234
L. Monjo, J. J. Mesas, L. Sainz, J. Pedra
The use of light emitting diode (LED) lamps in utility distribution systems is spreading because of the implementation of energy saving policies. These devices may malfunction and consume current peaks due to voltage sags, which are one of the most serious problems for sensitive equipment. This paper investigates the impact of voltage sags on currents consumed by LED lamps, and proposes an equivalent circuit of LED lamps. Simulations with this circuit and experimental measurements are discussed and compared.
{"title":"Study of voltage sag impact on LED lamp consumed currents","authors":"L. Monjo, J. J. Mesas, L. Sainz, J. Pedra","doi":"10.1109/ISFEE.2016.7803234","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803234","url":null,"abstract":"The use of light emitting diode (LED) lamps in utility distribution systems is spreading because of the implementation of energy saving policies. These devices may malfunction and consume current peaks due to voltage sags, which are one of the most serious problems for sensitive equipment. This paper investigates the impact of voltage sags on currents consumed by LED lamps, and proposes an equivalent circuit of LED lamps. Simulations with this circuit and experimental measurements are discussed and compared.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126394191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803163
Iordache Cosmin Alexandru, Grecu Cristian, Bodea Mircea
This paper presents an innovative variable regulated high voltage power supply (VRHVPS). It has an output voltage ranging from 0V to 500V, for a maximum current of 0.25A. It consists of a switched mode power supply (SMPS) followed by a linear regulator with a power supply rejection ratio (PSSR) of 58dB. The digital control module consists of an 8bit microcontroller, a small digital display, an isolated inter-integrated-circuit (I2C) interface with an isolated hall sensor as a current sensor and 12-bit analog to digital converters (ADC) to read the output voltage and current, also a 12bit digital to analog converter (DAC) which controls the linear regulator's output voltage.
{"title":"Variable regulated high voltage power supply","authors":"Iordache Cosmin Alexandru, Grecu Cristian, Bodea Mircea","doi":"10.1109/ISFEE.2016.7803163","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803163","url":null,"abstract":"This paper presents an innovative variable regulated high voltage power supply (VRHVPS). It has an output voltage ranging from 0V to 500V, for a maximum current of 0.25A. It consists of a switched mode power supply (SMPS) followed by a linear regulator with a power supply rejection ratio (PSSR) of 58dB. The digital control module consists of an 8bit microcontroller, a small digital display, an isolated inter-integrated-circuit (I2C) interface with an isolated hall sensor as a current sensor and 12-bit analog to digital converters (ADC) to read the output voltage and current, also a 12bit digital to analog converter (DAC) which controls the linear regulator's output voltage.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124377406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803222
V. Fedorov, N. Malyutin
A strip line made on the basis of carbon fibers is investigated. The line is included in the interruption of an asymmetric strip line, and is implemented as a tape made of carbon fibers on a dielectric substrate. Experimental frequency and pulse characteristics are obtained. Simulation of the line in a quasi-T approach is carried out. Primary line parameters are obtained using the extraction method by comparing experimental and theoretical frequency and pulse characteristics. The type of frequency dependence of the line resistance is established. Weakly manifested nonlinear properties under harmonic and pulse action are experimentally found.
{"title":"Nonlinear properties of a strip transmission line based on carbon fiber","authors":"V. Fedorov, N. Malyutin","doi":"10.1109/ISFEE.2016.7803222","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803222","url":null,"abstract":"A strip line made on the basis of carbon fibers is investigated. The line is included in the interruption of an asymmetric strip line, and is implemented as a tape made of carbon fibers on a dielectric substrate. Experimental frequency and pulse characteristics are obtained. Simulation of the line in a quasi-T approach is carried out. Primary line parameters are obtained using the extraction method by comparing experimental and theoretical frequency and pulse characteristics. The type of frequency dependence of the line resistance is established. Weakly manifested nonlinear properties under harmonic and pulse action are experimentally found.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124382640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803153
S. Can, A. Yılmaz
In this study, metasurface impact on a single horn antenna evaluated in terms of gain, directivity, far field, bandwidth and operating frequencies. Hexagon shaped split ring resonator is scaled and used for comparison of the single horn and metasurface loaded horn. For this purpose, a single horn at a frequency of 10GHz proposed. The hexagon shaped split ring resonator is designed to have periodic boundary conditions and after performing effective permittivity and permeability retrievals via a version of the Nicholson-Ross-Weir (NRW) algorithm that is improved by implementing the Kramers-Kronig relationship an finite array has been proposed for practical use. Metasurface loaded horn antenna achieved to have better bandwidth value around 10GHz and satisfy better gain and directivity values.
{"title":"Bandwidth enhancement of a horn antenna at X-band by using metamaterials","authors":"S. Can, A. Yılmaz","doi":"10.1109/ISFEE.2016.7803153","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803153","url":null,"abstract":"In this study, metasurface impact on a single horn antenna evaluated in terms of gain, directivity, far field, bandwidth and operating frequencies. Hexagon shaped split ring resonator is scaled and used for comparison of the single horn and metasurface loaded horn. For this purpose, a single horn at a frequency of 10GHz proposed. The hexagon shaped split ring resonator is designed to have periodic boundary conditions and after performing effective permittivity and permeability retrievals via a version of the Nicholson-Ross-Weir (NRW) algorithm that is improved by implementing the Kramers-Kronig relationship an finite array has been proposed for practical use. Metasurface loaded horn antenna achieved to have better bandwidth value around 10GHz and satisfy better gain and directivity values.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"274 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133547338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803236
D. Micu, T. Micu
The paper presents a way to determine the image charges in the case of a point charge in the presence of two grounded conductive spheres. The result is used for the computation of the electric scalar potential in a point. We show that, through an inversion transformation, the problem of the potential of a point charge in the presence of a plane and a sphere is reduced to the preceding problem. The solution was obtained with the help of a few C++ programs. The results are useful in the field of electrostatic separators.
{"title":"The potential of a punctual charge in the presence of two conductive surfaces","authors":"D. Micu, T. Micu","doi":"10.1109/ISFEE.2016.7803236","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803236","url":null,"abstract":"The paper presents a way to determine the image charges in the case of a point charge in the presence of two grounded conductive spheres. The result is used for the computation of the electric scalar potential in a point. We show that, through an inversion transformation, the problem of the potential of a point charge in the presence of a plane and a sphere is reduced to the preceding problem. The solution was obtained with the help of a few C++ programs. The results are useful in the field of electrostatic separators.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116790355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803216
J. Fisher, P. Hoole, K. Pirapaharan, S. Hoole
This paper presents for the first time an assessment of the impact of direct cloud-to-cloud (CC) and intra-cloud (IC) lightning flash on a commercial and a military aircraft. In contrast to cloud-to-ground (CG) lightning strikes to aircraft, where measurements of CG flash measurements may be extended to aircraft strikes, CC and IC flashes are not so accessible. The effects of CC and IC flashes differ from CG flash largely owing to the earth resistance present in CG flashes which imposes limits on the lightning return stroke. It applies the experimentally-attested transmission line model which was reviewed in a previous companion paper to assess the impact on metallic and carbon fiber composite (CFC) structures of modern aircraft. It compares the electrical impact of CC lightning flash on aircraft made of CFC and metallic structures. The simulations and analysis of voltages and the first return stroke current waveforms demonstrate the important distinctions in the characteristics of direct CC lightning effects on metallic and non-metallic airframes. Among the significant results observed are large differences in current time derivatives on the surface of the carbon fiber composites and metallic airframes. Further observations show that there are rise times for the voltage and currents which fall within the subnano and submicro seconds yielding large time derivatives for both the voltages and the currents. This can have important implications for the shielding and protection of the aircraft electrical and electronics systems.
{"title":"Parameters of cloud to cloud and intra-cloud lightning strikes to CFC and metallic aircraft structures","authors":"J. Fisher, P. Hoole, K. Pirapaharan, S. Hoole","doi":"10.1109/ISFEE.2016.7803216","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803216","url":null,"abstract":"This paper presents for the first time an assessment of the impact of direct cloud-to-cloud (CC) and intra-cloud (IC) lightning flash on a commercial and a military aircraft. In contrast to cloud-to-ground (CG) lightning strikes to aircraft, where measurements of CG flash measurements may be extended to aircraft strikes, CC and IC flashes are not so accessible. The effects of CC and IC flashes differ from CG flash largely owing to the earth resistance present in CG flashes which imposes limits on the lightning return stroke. It applies the experimentally-attested transmission line model which was reviewed in a previous companion paper to assess the impact on metallic and carbon fiber composite (CFC) structures of modern aircraft. It compares the electrical impact of CC lightning flash on aircraft made of CFC and metallic structures. The simulations and analysis of voltages and the first return stroke current waveforms demonstrate the important distinctions in the characteristics of direct CC lightning effects on metallic and non-metallic airframes. Among the significant results observed are large differences in current time derivatives on the surface of the carbon fiber composites and metallic airframes. Further observations show that there are rise times for the voltage and currents which fall within the subnano and submicro seconds yielding large time derivatives for both the voltages and the currents. This can have important implications for the shielding and protection of the aircraft electrical and electronics systems.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132755151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803187
Ammar Ghalib Al-Gizi, S. Al-Chlaihawi
Maximum Power Point Tracking (MPPT) represents an important part in photovoltaic (PV) systems. This paper presents a comparative simulation study of three MPPT algorithms: Perturb & Observe (P&O), Incremental Conductance (InC), and intelligent Fuzzy Logic (FL) based MPPT controller under constant and variable atmospheric conditions. The simulation results show that the FL based MPPT can track the MPP with better results as compared to the conventional (P&O) and (InC) algorithms in terms of accuracy, transient (speed) and steady (stability) responses by continuously adjusting the DC-DC duty cycle as a control parameter. A Matlab simulink toolbox and M-file have been used for the simulation and performance evaluation of the above-mentioned MPPT algorithms applied for the 150W BP SX150S solar PV module.
最大功率点跟踪(MPPT)是光伏发电系统的重要组成部分。本文在恒定和可变大气条件下，对扰动与观测(P&O)、增量电导(InC)和基于智能模糊逻辑(FL)的MPPT控制器三种MPPT算法进行了比较仿真研究。仿真结果表明，通过连续调整DC-DC占空比作为控制参数，基于FL的MPPT可以在精度、暂态(速度)和稳态(稳定性)响应方面优于传统的(P&O)和(InC)算法。利用Matlab simulink工具箱和M-file对上述MPPT算法在150W BP SX150S太阳能光伏组件中的应用进行了仿真和性能评估。
{"title":"Study of FLC based MPPT in comparison with P&O and InC for PV systems","authors":"Ammar Ghalib Al-Gizi, S. Al-Chlaihawi","doi":"10.1109/ISFEE.2016.7803187","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803187","url":null,"abstract":"Maximum Power Point Tracking (MPPT) represents an important part in photovoltaic (PV) systems. This paper presents a comparative simulation study of three MPPT algorithms: Perturb & Observe (P&O), Incremental Conductance (InC), and intelligent Fuzzy Logic (FL) based MPPT controller under constant and variable atmospheric conditions. The simulation results show that the FL based MPPT can track the MPP with better results as compared to the conventional (P&O) and (InC) algorithms in terms of accuracy, transient (speed) and steady (stability) responses by continuously adjusting the DC-DC duty cycle as a control parameter. A Matlab simulink toolbox and M-file have been used for the simulation and performance evaluation of the above-mentioned MPPT algorithms applied for the 150W BP SX150S solar PV module.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126516022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes two methods to implement a coin identification system. The proposed methods have several advantages, such as good identification accuracy, simple hardware configuration, and easy extension. Method 1 uses a single winding high-frequency sinusoidal voltage exciting method. By injecting a fixed-amplitude, fixed-frequency sinusoidal voltage, the exciting current, which is related to the impedance of the winding, can be detected. By measuring the amplitude and phase between the input voltage and current, the coin feature can be identified and then a `true' or `fake' coin can be determined. Method 2 uses a square-wave voltage exciting method. Two windings are used. The primary winding is connected to the square-wave voltage, and the second winding is used to measure the induced voltage. The induced voltage waveform of the secondary winding is varied as a coin passes through. By using Fourier analysis, the proposed system can determine the coin as a `true' or `fake' coin. The performance of these two methods is compared and discussed. Finally, a normalization technique of method 2 is discussed. By using the normalization technique, the accuracy rate of method 2 can reach 90%, which is better than the accuracy rate of method 1.
{"title":"Design and implementation for a coin identification system","authors":"Tian‐Hua Liu, Wei-Ting Chen, Jui-Ling Chen, Chih-Chien Tseng","doi":"10.1109/ISFEE.2016.7803201","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803201","url":null,"abstract":"This paper proposes two methods to implement a coin identification system. The proposed methods have several advantages, such as good identification accuracy, simple hardware configuration, and easy extension. Method 1 uses a single winding high-frequency sinusoidal voltage exciting method. By injecting a fixed-amplitude, fixed-frequency sinusoidal voltage, the exciting current, which is related to the impedance of the winding, can be detected. By measuring the amplitude and phase between the input voltage and current, the coin feature can be identified and then a `true' or `fake' coin can be determined. Method 2 uses a square-wave voltage exciting method. Two windings are used. The primary winding is connected to the square-wave voltage, and the second winding is used to measure the induced voltage. The induced voltage waveform of the secondary winding is varied as a coin passes through. By using Fourier analysis, the proposed system can determine the coin as a `true' or `fake' coin. The performance of these two methods is compared and discussed. Finally, a normalization technique of method 2 is discussed. By using the normalization technique, the accuracy rate of method 2 can reach 90%, which is better than the accuracy rate of method 1.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121774387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803223
Radomir Pavlik, Z. Hrubos
In recent times, a significant interest in detection of nonlinear scatterers in various applications has appeared. One of these applications is detection of passive objects of artificial origin containing electronic circuits or other non-explosive elements incorporated into the firing train of hidden explosive hazards means. Prior research has shown that a single frequency RF signal is well suited to the task of illuminating such scatterers to excite their nonlinear response and commercially available devices based on this principle have appeared since the 1970s. However, this basic approach without any carrier modulation may limit efficiency of energy transmission to the nonlinear scatterer. Therefore, investigation of appropriate modulation schemes can reveal their potential benefits in harmonic radar detection systems. This paper presents an initial concept of novel detection method using binary phase-shift keying (BPSK) modulated signal for simultaneous detection of nonlinear scatterers with both quadratic and cubic characteristics. The use of BPSK signal brings interesting benefits to the fundamental detection of components at multiples of the carrier frequency and, at the same time, allows achieving significant reduction of transmit signal power at the carrier frequency. The proposed algorithms use cyclostationary features of linear digital modulations along with correlation based processing in some parts and are implemented using MATLAB.
{"title":"Cyclostationary and correlation based signal detection for harmonic radar systems","authors":"Radomir Pavlik, Z. Hrubos","doi":"10.1109/ISFEE.2016.7803223","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803223","url":null,"abstract":"In recent times, a significant interest in detection of nonlinear scatterers in various applications has appeared. One of these applications is detection of passive objects of artificial origin containing electronic circuits or other non-explosive elements incorporated into the firing train of hidden explosive hazards means. Prior research has shown that a single frequency RF signal is well suited to the task of illuminating such scatterers to excite their nonlinear response and commercially available devices based on this principle have appeared since the 1970s. However, this basic approach without any carrier modulation may limit efficiency of energy transmission to the nonlinear scatterer. Therefore, investigation of appropriate modulation schemes can reveal their potential benefits in harmonic radar detection systems. This paper presents an initial concept of novel detection method using binary phase-shift keying (BPSK) modulated signal for simultaneous detection of nonlinear scatterers with both quadratic and cubic characteristics. The use of BPSK signal brings interesting benefits to the fundamental detection of components at multiples of the carrier frequency and, at the same time, allows achieving significant reduction of transmit signal power at the carrier frequency. The proposed algorithms use cyclostationary features of linear digital modulations along with correlation based processing in some parts and are implemented using MATLAB.","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130577830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.1109/ISFEE.2016.7803240
M. Ignat
The paper presents a case study of the Alexandru Proca Centre of Research Initiating of the young to the high school level which was structured on the National Institute of Electrical Engineering Research- Advanced Research (INCDIE - CA). The structure of this Centre, the team, the mode of introduce the specific research methodologies are presented. Alexandru Proca (1897 - 1955) was a great researcher in the field of theoretical physics (see Proca equations).
{"title":"The scientific research initiation to the high school level. A case study: The Alexandru Proca Centre","authors":"M. Ignat","doi":"10.1109/ISFEE.2016.7803240","DOIUrl":"https://doi.org/10.1109/ISFEE.2016.7803240","url":null,"abstract":"The paper presents a case study of the Alexandru Proca Centre of Research Initiating of the young to the high school level which was structured on the National Institute of Electrical Engineering Research- Advanced Research (INCDIE - CA). The structure of this Centre, the team, the mode of introduce the specific research methodologies are presented. Alexandru Proca (1897 - 1955) was a great researcher in the field of theoretical physics (see Proca equations).","PeriodicalId":240170,"journal":{"name":"2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130355507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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