Pub Date : 2018-04-01DOI: 10.1109/ELNANO.2018.8477540
V. Yachin, T. Zinenko, S. Mizrakhy, I. Nesterov, P. Nesterov, A. Lukash
Resonant scattering of the plane electromagnetic wave from the crossed strip gratings situated in the free space is studied. The strips of the gratings are made of PEC-like material of nonzero thickness. When the crossing angle of this structure changes from 90° to 0° the frequency dependences of the scattered powers reveal the resonances, the frequencies of which depend on the crossing angle of the gratings in a wide frequency range. Experimental investigation of the crossed strip gratings in microwave frequency range shows a good coincidence with the theory based on Integral Functional Method.
{"title":"Mechanically Tunable Microwave Filter Based on Crossed Strip Gratings with Controllable Crossing Angle in Free Space","authors":"V. Yachin, T. Zinenko, S. Mizrakhy, I. Nesterov, P. Nesterov, A. Lukash","doi":"10.1109/ELNANO.2018.8477540","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477540","url":null,"abstract":"Resonant scattering of the plane electromagnetic wave from the crossed strip gratings situated in the free space is studied. The strips of the gratings are made of PEC-like material of nonzero thickness. When the crossing angle of this structure changes from 90° to 0° the frequency dependences of the scattered powers reveal the resonances, the frequencies of which depend on the crossing angle of the gratings in a wide frequency range. Experimental investigation of the crossed strip gratings in microwave frequency range shows a good coincidence with the theory based on Integral Functional Method.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"127 47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124037811","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477529
D. Slobodianiuk, O. Sulymenko, O. Prokopenko
We analyze magnetization dynamics in a system of two coupled THz-frequency Josephson-like spin Hall oscillators based on a layered structure consisting of a current-driven platinum layer and a layer of an antiferromagnet with easy-plane anisotropy. The THz-frequency signal from the antiferromagnet is received through the inverse spin-Hall effect in the platinum layer and we show that it can be used for the mutual coupling of two spin Hall oscillators leading to the improvement of the overall device performance.
{"title":"Dynamics of Two Coupled Antiferromagnetic Terahertz-Frequency Josephson-Like Oscillators Driven by a Spin Current","authors":"D. Slobodianiuk, O. Sulymenko, O. Prokopenko","doi":"10.1109/ELNANO.2018.8477529","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477529","url":null,"abstract":"We analyze magnetization dynamics in a system of two coupled THz-frequency Josephson-like spin Hall oscillators based on a layered structure consisting of a current-driven platinum layer and a layer of an antiferromagnet with easy-plane anisotropy. The THz-frequency signal from the antiferromagnet is received through the inverse spin-Hall effect in the platinum layer and we show that it can be used for the mutual coupling of two spin Hall oscillators leading to the improvement of the overall device performance.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"315 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122699273","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477526
S. Miroshnychenko, A. Nevgasymyy, S. Senchurov, O. Motolyga, Khrystyna Faryna
IMASIM software was used to generate sets of X-ray projections for quality control in digital tomosynthesis. Corresponding projections of a polymethylmethacrylate(PMMA) phantom with the same size were taken using x-ray tomosynthesis imaging equipment. A specially designed fiduciary marker bead phantom was used to measure the relative positions of imaging system elements. A good correspondence was found between real and simulated projections and reconstructed slices. The ability to create simulated projections with predefined imperfections gives valuable benefits to analysis of overall tomosynthesis performance.
{"title":"Simulated Phantom Projections for Reconstruction Quality Control in Digital Tomosynthesis","authors":"S. Miroshnychenko, A. Nevgasymyy, S. Senchurov, O. Motolyga, Khrystyna Faryna","doi":"10.1109/ELNANO.2018.8477526","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477526","url":null,"abstract":"IMASIM software was used to generate sets of X-ray projections for quality control in digital tomosynthesis. Corresponding projections of a polymethylmethacrylate(PMMA) phantom with the same size were taken using x-ray tomosynthesis imaging equipment. A specially designed fiduciary marker bead phantom was used to measure the relative positions of imaging system elements. A good correspondence was found between real and simulated projections and reconstructed slices. The ability to create simulated projections with predefined imperfections gives valuable benefits to analysis of overall tomosynthesis performance.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128581021","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477435
A. Komarov, O. Naguliak, A. Netreba, S. Radchenko, O. Sudakov
The reconstruction of the magnetic resonance images for different levels of the gradient systems instability is considered. The original technique for minimizing the negative effect of deviations of measurement points in K-space on the quality characteristics of reconstructed tomograms is proposed. On the example of real MR image processing limit values of instability parameters are determined taking into account the possibilities of their compensation. It is shown that the construction of several tomograms for different angular positions of transverse magnetic gradient systems with subsequent integration makes it possible to increase their informatively.
{"title":"Compensation of the Magnetic Gradient Instability in MRI by Measurements Data for Several Angular Orientations","authors":"A. Komarov, O. Naguliak, A. Netreba, S. Radchenko, O. Sudakov","doi":"10.1109/ELNANO.2018.8477435","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477435","url":null,"abstract":"The reconstruction of the magnetic resonance images for different levels of the gradient systems instability is considered. The original technique for minimizing the negative effect of deviations of measurement points in K-space on the quality characteristics of reconstructed tomograms is proposed. On the example of real MR image processing limit values of instability parameters are determined taking into account the possibilities of their compensation. It is shown that the construction of several tomograms for different angular positions of transverse magnetic gradient systems with subsequent integration makes it possible to increase their informatively.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130813274","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477492
I. Kovtun, J. Boiko, S. Petrashchuk
The paper represents identification of natural frequency and form of oscillation for the main construction elements of the electronic packages such as printed circuit boards, walls of the cases and other bearing parts subjected to vibration and shocks during operation. The current study is focused on using elements of plate bending theory, in which main boards, case walls and other planar rectangular structures are considered as equivalent homogeneous plates, in order to estimate their natural frequencies and forms of free cross oscillations and hence to identify their possible resonances with purpose to avoid them and correspondent dangerous operational modes. The significant attention was paid to the experimental research of dynamic characteristics conducted by using experimental setup created on the base of reverse and direct piezoelectric effects and also the shaker with vibration test cross appliance, representing results in form of Chladni figures and amplitude frequency response.
{"title":"Identification of Natural Frequency and form of Oscillation for Electronic Packages Subjected to Vibration","authors":"I. Kovtun, J. Boiko, S. Petrashchuk","doi":"10.1109/ELNANO.2018.8477492","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477492","url":null,"abstract":"The paper represents identification of natural frequency and form of oscillation for the main construction elements of the electronic packages such as printed circuit boards, walls of the cases and other bearing parts subjected to vibration and shocks during operation. The current study is focused on using elements of plate bending theory, in which main boards, case walls and other planar rectangular structures are considered as equivalent homogeneous plates, in order to estimate their natural frequencies and forms of free cross oscillations and hence to identify their possible resonances with purpose to avoid them and correspondent dangerous operational modes. The significant attention was paid to the experimental research of dynamic characteristics conducted by using experimental setup created on the base of reverse and direct piezoelectric effects and also the shaker with vibration test cross appliance, representing results in form of Chladni figures and amplitude frequency response.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114369922","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477543
Y. Makarenko, Y. Onikienko, V. Pilinsky, O. Dovzhenko
Analysis of the conductive electromagnetic interferences (EMI) of the Half-bridge GaN development board EPC9062 is described. An equivalent circuit of the power stage and its mathematical model as a source of EMI is proposed. The modeling is performed in the range from 150 kHz to 30 MHz. The influence of the Common Mode component on the overall EMI level with an increasing of the switching frequency is analyzed. The graphs of the calculated and experimental EMI at the line impedance stabilization network (LISN) output are built. Experimental results and calculated ones are well matched.
{"title":"Conductive EMI Modeling of Half-Bridge GaN Power Stage","authors":"Y. Makarenko, Y. Onikienko, V. Pilinsky, O. Dovzhenko","doi":"10.1109/ELNANO.2018.8477543","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477543","url":null,"abstract":"Analysis of the conductive electromagnetic interferences (EMI) of the Half-bridge GaN development board EPC9062 is described. An equivalent circuit of the power stage and its mathematical model as a source of EMI is proposed. The modeling is performed in the range from 150 kHz to 30 MHz. The influence of the Common Mode component on the overall EMI level with an increasing of the switching frequency is analyzed. The graphs of the calculated and experimental EMI at the line impedance stabilization network (LISN) output are built. Experimental results and calculated ones are well matched.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127645401","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477502
V. Kubov, Y. Y. Dymytrov, D. D. Ziulieiev, R. Kubova
A comparison of seasonal and diurnal variations of the photocurrent of different types of PV panels is done for cloudless conditions. PV-panels made of amorphous and crystalline silicon are compared. A simple two-component model of seasonal and diurnal variations of atmospheric transparency is proposed. Every model component is responsible for the peculiarity of spectral sensitivity of the PV-panel material.
{"title":"The Influence of the Silicon Photovoltaic Panels Spectral Response on the Seasonal Variations of the Photocurrent","authors":"V. Kubov, Y. Y. Dymytrov, D. D. Ziulieiev, R. Kubova","doi":"10.1109/ELNANO.2018.8477502","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477502","url":null,"abstract":"A comparison of seasonal and diurnal variations of the photocurrent of different types of PV panels is done for cloudless conditions. PV-panels made of amorphous and crystalline silicon are compared. A simple two-component model of seasonal and diurnal variations of atmospheric transparency is proposed. Every model component is responsible for the peculiarity of spectral sensitivity of the PV-panel material.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129256330","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477565
Kozeruk Sergii, Serhiienko Oleksii
Several approaches to determine the acoustic waves time delay for sound sources localization are considered in this paper. The algorithms of time parameter estimation by means of correlation processing, phase transformation, and pulsed transition functions are presented. A comparison of techniques is performed on an example of processing the audio recordings from small arms
{"title":"Approbation of Evaluation Techniques of Acoustic Waves Time Delay for Sound Sources Localization","authors":"Kozeruk Sergii, Serhiienko Oleksii","doi":"10.1109/ELNANO.2018.8477565","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477565","url":null,"abstract":"Several approaches to determine the acoustic waves time delay for sound sources localization are considered in this paper. The algorithms of time parameter estimation by means of correlation processing, phase transformation, and pulsed transition functions are presented. A comparison of techniques is performed on an example of processing the audio recordings from small arms","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116690533","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477560
V. Grimalsky, S. Koshevaya, J. Escobedo-A., I. Moroz
Electron spectrum in doped $n$-Si quantum wires is calculated by the Thomas – Fermi (TF) method under finite temperatures. The many-body exchange corrections are taken into account. The doping profile is arbitrary. At the first stage the electron potential energy is calculated from a simple two-dimensional equation. The effective iteration scheme is proposed there. Then the energy sub-levels and wave functions are simulated from the Schrödinger equation. The expansion by the eigenfunctions of the linear harmonic oscillator is used. The quantum mechanical perturbation theory yields goods results for the lower energy sub-levels.
{"title":"The Electron Spectrum of Quantum Wires in n-Si of Arbitrarily Doping Profile","authors":"V. Grimalsky, S. Koshevaya, J. Escobedo-A., I. Moroz","doi":"10.1109/ELNANO.2018.8477560","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477560","url":null,"abstract":"Electron spectrum in doped $n$-Si quantum wires is calculated by the Thomas – Fermi (TF) method under finite temperatures. The many-body exchange corrections are taken into account. The doping profile is arbitrary. At the first stage the electron potential energy is calculated from a simple two-dimensional equation. The effective iteration scheme is proposed there. Then the energy sub-levels and wave functions are simulated from the Schrödinger equation. The expansion by the eigenfunctions of the linear harmonic oscillator is used. The quantum mechanical perturbation theory yields goods results for the lower energy sub-levels.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115288728","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 : 2018-04-01DOI: 10.1109/ELNANO.2018.8477534
F. Tiutiunnyk, V. Kozyrskyi, Yurii Tugai, Anatoliy Prystupa
Today rapid growth of distributed generation can cause some problems that related with power system stability. The mathematical models and algorithms are playing a major part in evolution of electronic systems. Therefore, the improving of models and algorithms is fundamental problem in further systems development. The algorithm for information support an automated system has been studied. The inertia constant, which representing dynamic property of electric generator, has been founded by analyzing components of mathematical model, describing dynamics of power system. It should not be forgotten, however, that the most of the distributed generation control systems have focus on power control (P and Q) to achieve reliable operation of the local grid. The suggestions about supplementing control system algorithm of power system with distributed generation sources for concern of their dynamic properties are made. The supplementing consists of including information-feedback system (IFS) module on all hierarchical levels. This module includes data and algorithm of analyzing the stability. The structure of module and database are developed.
{"title":"The Improving Control System of Distributed Generation Sources Taking into Account Their Dynamic Parameters","authors":"F. Tiutiunnyk, V. Kozyrskyi, Yurii Tugai, Anatoliy Prystupa","doi":"10.1109/ELNANO.2018.8477534","DOIUrl":"https://doi.org/10.1109/ELNANO.2018.8477534","url":null,"abstract":"Today rapid growth of distributed generation can cause some problems that related with power system stability. The mathematical models and algorithms are playing a major part in evolution of electronic systems. Therefore, the improving of models and algorithms is fundamental problem in further systems development. The algorithm for information support an automated system has been studied. The inertia constant, which representing dynamic property of electric generator, has been founded by analyzing components of mathematical model, describing dynamics of power system. It should not be forgotten, however, that the most of the distributed generation control systems have focus on power control (P and Q) to achieve reliable operation of the local grid. The suggestions about supplementing control system algorithm of power system with distributed generation sources for concern of their dynamic properties are made. The supplementing consists of including information-feedback system (IFS) module on all hierarchical levels. This module includes data and algorithm of analyzing the stability. The structure of module and database are developed.","PeriodicalId":269665,"journal":{"name":"2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123828454","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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