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2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)最新文献

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Displacement Wave Field Caused by an Axial Shear Crack 轴向剪切裂纹引起的位移波场
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552322
V. Stankevych, I. Zhbadynskyi, I. Kuz
{"title":"Displacement Wave Field Caused by an Axial Shear Crack","authors":"V. Stankevych, I. Zhbadynskyi, I. Kuz","doi":"10.1109/DIPED53165.2021.9552322","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552322","url":null,"abstract":"Solutions of a three-dimensional dynamic problem for the displacement wave field initiated by a given time-harmonic displacement of opposite surfaces of a plane circular crack are constructed. The solutions are given in the form of integral representations using the classical Helmholtz potentials. For the case of the axial shear crack, the influence of the frequency of the defect surfaces displacements and the angular coordinate of the observation point on the redistribution of the parameters of the displacement wave field in the solid is investigated.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129237444","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}
引用次数: 0
Applying the Electrodynamic Approach to Modeling Wireless Power Transmission Systems 应用电动力学方法建模无线电力传输系统
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552254
V. Alieksieiev, D. Gretskih, A. Luchaninov, V. Lykhograi, A. Shcherbina
{"title":"Applying the Electrodynamic Approach to Modeling Wireless Power Transmission Systems","authors":"V. Alieksieiev, D. Gretskih, A. Luchaninov, V. Lykhograi, A. Shcherbina","doi":"10.1109/DIPED53165.2021.9552254","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552254","url":null,"abstract":"Based on the previously developed electrodynamic (ED) approach to modeling wireless power transmission (WPT) systems, the results of modeling several WPT systems using the induction method of power transfer are presented. An ED approach for the design of WPT systems is outlined. This ED approach is a universal tool, since from a single point of view it allows the analysis and optimization of WPT systems based on various methods of power transfer. The results of modeling WPT systems with an inductive method of power transfer and comparing them with theoretical and experimental data of other authors have shown the reliability and universality of the proposed ED approach and the mathematical model (MM) of the WPT system developed on its basis.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122684910","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}
引用次数: 1
Systems of Transcendental Equations with Polynomial Representation of Solutions in Free- Phase Problems 自由相问题中具有多项式表示解的超越方程组
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552265
O. O. Bulatsyk, Y. Topolyuk
{"title":"Systems of Transcendental Equations with Polynomial Representation of Solutions in Free- Phase Problems","authors":"O. O. Bulatsyk, Y. Topolyuk","doi":"10.1109/DIPED53165.2021.9552265","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552265","url":null,"abstract":"The integral equations of the Hammerstein type are considered. New method is proposed for the analytical-numerical solution of these equations. It is based on the property of the logarithmic derivative when calculating the argument of a complex function in its polynomial representation. The derived systems of transcendental and integral-transcendental equations are used for solving the equations under consideration. Equations for possible branching points of solutions in the polynomial form are obtained.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132660716","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}
引用次数: 1
Advanced Method for Solving the Non-linear Multiparameter Spectral Problems 求解非线性多参数谱问题的先进方法
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552315
P. Savenko
{"title":"Advanced Method for Solving the Non-linear Multiparameter Spectral Problems","authors":"P. Savenko","doi":"10.1109/DIPED53165.2021.9552315","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552315","url":null,"abstract":"An effective numerical method for solving non-linear multiparametric spectral problems for the holomorphic operator-functions, which belong to the Banach spaces is proposed. The theorem of existence of connected components of the spectrum (CCS), the finding of which consists in solving a system of equations of partial derivatives of the first order with the corresponding initial condition, is proved. The examples of solving three-parameter spectral problems are given.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116719055","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}
引用次数: 1
NMR Spin Echo Study of Domain Wall Pinning in Lithium Ferrite in Combination with an Additional Magnetic Video-pulse 结合附加磁视频脉冲的铁氧体锂畴壁钉钉的核磁共振自旋回波研究
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552256
T. Gavasheli, T. Gegechkori, G. Mamniashvili, G. Ghvedashvili
{"title":"NMR Spin Echo Study of Domain Wall Pinning in Lithium Ferrite in Combination with an Additional Magnetic Video-pulse","authors":"T. Gavasheli, T. Gegechkori, G. Mamniashvili, G. Ghvedashvili","doi":"10.1109/DIPED53165.2021.9552256","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552256","url":null,"abstract":"NMR spin echo at application of an additional magnetic video-pulse is a convenient method to study the domain wall pinning in magnetic materials. Domain wall pinning is the critical amplitude of the magnetic video-pulse below which the domain wall fixed. For its assessment, two alternative NMR methods were chosen. In the first case, the pinning of domain wall was measured by the action of magnetic video-pulse on a two-pulse echo signal, and in the second one, the pinning was measured at the combined action of magnetic video-pulse and radiofrequency pulses on the nuclear spin system in domain wall during the process of formation a single-pulse echo, by means of generation of the so-called magnetic echo signal.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124462209","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}
引用次数: 2
Alternating Magnetic Field Coils Optimization for Magnetic Nanoparticles Hyperthermia 磁纳米颗粒热疗的交变磁场线圈优化
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552299
A. Nour, F. Shubitidze
{"title":"Alternating Magnetic Field Coils Optimization for Magnetic Nanoparticles Hyperthermia","authors":"A. Nour, F. Shubitidze","doi":"10.1109/DIPED53165.2021.9552299","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552299","url":null,"abstract":"Cancer is one of the deadliest diseases in this era. Currently many researchers from different fields are collaborating to find an optimum cure. One of the treatment methods involves the use of Magnetic Nanoparticles Hyperthermia (MNPH). This involves the insertion of Magnetic Nanoparticles (MNPs) at cancerous tumors locations and using an external current carrying coil to apply an alternating magnetic field (AMF) that would activate the MNPs located inside the tumor tissues. In return, the activation of the MNPs would result in concentrated heat at tumor locations, which can be intense enough to destroy tumor tissues. Alternating magnetic fields means also the introduction of electric field, which results in eddy currents at surrounding healthy tissues. The resulted eddy currents produce unwanted heat and damage the surrounding healthy tissues especially when high currents (up to several hundred Amps) is used to deliver the required AMF intensity for deep tissues tumors. This paper presents a full computational and graphical electromagnetic study of a real human model. Specific absorption rates (SARs) are computed and presented across different tissues in the body with different coil configurations. The optimum coil configuration with the maximum AMF at the pancreatic tumor injected MNPs and minimum eddy currents on surrounding healthy tissues was deduced.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126986684","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}
引用次数: 1
About Using the Method of Poynting 关于使用坡印法
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552295
B. Levin
{"title":"About Using the Method of Poynting","authors":"B. Levin","doi":"10.1109/DIPED53165.2021.9552295","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552295","url":null,"abstract":"The procedure for calculating self and mutual resistances of different types of linear radiators based on the method of Poynting is considered. The technique of using approximate expressions, which allows to drastically simplify calculations and ensure high accuracy of the results, has been grounded. The results of applying the method of Poynting vector and the method of induced EMF to radiators located in parallel with each other without and with a shift in height, as well as to radiators located arbitrarily in parallel planes, are compared.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133529494","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}
引用次数: 1
Synthesis of Dual-band Filter with Improved Functionality Based on Dual-mode Resonator 基于双模谐振器的功能改进双带滤波器的合成
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552281
S. Litvintsev, S. Rozenko
{"title":"Synthesis of Dual-band Filter with Improved Functionality Based on Dual-mode Resonator","authors":"S. Litvintsev, S. Rozenko","doi":"10.1109/DIPED53165.2021.9552281","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552281","url":null,"abstract":"The problem of improving dual-band filter functionality based on dual-mode resonator is solved. Stepped-impedance transmission line segments (SILS) with the required arrangement of resonant frequencies are synthesized to solve this problem. These SILS have the minimum value of parameter m = Z0max/Z0min, which is defined as the optimal criterion. The method of parametric synthesis was used for optimization. Two ends of the SILS are short-circuited. A short-circuited stub of short length is connected to the middle of the synthesized SILS. As result, a new dual-mode dual-band filter with enhanced functionality is obtained. This filter allows us to change the relative position of two passbands over a wide range. This filter can also significantly increase the operating frequencies. The data of measurements of the microstrip filter prototype are presented.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134110411","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}
引用次数: 1
Propagation of Electromagnetic Waves in a Waveguide with Space-Time Multiperiodically Modulated Magnetodielectric Filling 电磁波在空时多周期调制磁介质填充波导中的传播
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/DIPED53165.2021.9552320
E. Gevorkyan
{"title":"Propagation of Electromagnetic Waves in a Waveguide with Space-Time Multiperiodically Modulated Magnetodielectric Filling","authors":"E. Gevorkyan","doi":"10.1109/DIPED53165.2021.9552320","DOIUrl":"https://doi.org/10.1109/DIPED53165.2021.9552320","url":null,"abstract":"The properties of electromagnetic waves in an ideal regular waveguide that is characterized by arbitrary cross-section are studied. It is assumed, that the filling of waveguide is multiperiodically modulated in space and time, and the modulation depths are small. By this the modulation of the waveguide filling does not lead to the interaction between different waveguide modes. The wave equations for the longitudinal components of the electric and magnetic vectors are obtained based on the system of Maxwell's equations. They describe the waveguide's transverse-electric (TE) and transverse-magnetic (TM) fields. These wave equations are partial differential equations of second order with periodic coefficients. Using change of variables, they are reduced to ordinary differential equations with periodic coefficients of the Mathieu-Hill type. Under the assumption of small modulation depths of the waveguide filling solutions of these equations are found in the first approximation with respect to the modulation depths in the frequency domain of the “weak” interaction between the signal wave and the modulation wave, when the first-order Wulff-Bragg condition between the waves, reflected from the filling inhomogeneities, is not satisfied. The analytical expressions, obtained in this article for the TE and TM fields, show that in the first approximation in terms of small modulation depths the TE and TM fields are given as a set of three space-time harmonics with specified complex amplitudes and frequencies.","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134030687","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}
引用次数: 1
Antenna Synthesis and Design 天线合成与设计
2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2021-09-08 DOI: 10.1109/diped53165.2021.9552276
{"title":"Antenna Synthesis and Design","authors":"","doi":"10.1109/diped53165.2021.9552276","DOIUrl":"https://doi.org/10.1109/diped53165.2021.9552276","url":null,"abstract":"","PeriodicalId":150897,"journal":{"name":"2021 IEEE 26th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)","volume":"16 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114035669","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}
引用次数: 0
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