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2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)最新文献

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Pulse Hydrogen Treatment of Surface Layer of SPR Sensor SPR传感器表层脉冲氢处理
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927030
A. Vasiljev, T. Vasyliev, R. Zhelezniak, V. Kryvytskyi, T. Doroshenko, M.G. Chernikov
{"title":"Pulse Hydrogen Treatment of Surface Layer of SPR Sensor","authors":"A. Vasiljev, T. Vasyliev, R. Zhelezniak, V. Kryvytskyi, T. Doroshenko, M.G. Chernikov","doi":"10.1109/ELNANO54667.2022.9927030","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927030","url":null,"abstract":"The pulse action of hydrogen on the SPR sensor was experimentally studied. The pulse regime was chosen by means of estimation of hydrogen concentration distribution in a gold film. Impulse was an impulse of electrolysis current with a duration of 2 seconds. The current impulses were repeated every half hour. The SPR curve after exposure to 60 impulses on the sensor shifted to the region of larger angles by 4.51°. The width of the SPR curve has increased 5 times. The amplitude of the resonant absorption of light has decreased significantly. After 60 impulses of hydrogen treatment the SPR sensor has become unsuitable for registration in accurate measurements. The theoretical modeling for changes of the morphology of thin gold film by means of hydrogen treatment was performed. The SPR curve changes were explained by hydrogen embrittlement of the upper layer of the gold film and, thus, by increasing of the surface roughness of the gold film.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"28 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122577158","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
Model of Pulses Propagation in Cellular Structures of Fibers 脉冲在纤维细胞结构中的传播模型
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927033
M. Kundenko, Andrii Rudenko, Olga Iegorova, Olexiy Iegorov, Vitalii Mardziavko
{"title":"Model of Pulses Propagation in Cellular Structures of Fibers","authors":"M. Kundenko, Andrii Rudenko, Olga Iegorova, Olexiy Iegorov, Vitalii Mardziavko","doi":"10.1109/ELNANO54667.2022.9927033","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927033","url":null,"abstract":"- The article examines the internal processes in a cell under electromagnetic influence. In the course of the study, a modification of a number of basic radio physical models of the functioning of a grain cell and a solution to the problem of resonance frequencies in an operating electrochemical installation are proposed. Frequency curves are considered regardless of the parameters of the inductors in the range from 0.2 to 0.5 Ohm, taking into account the parasitic components. Parasitic bandwidths and delays are taken into account, as well as spurious frequency components up to the fourth harmonic. The study uses the traditional basic physical mechanisms of membrane conductivity, namely the conductivity of sodium, potassium and calcium ions. In standard radio physical models, the effect of short pulses is considered, the use of which can cause frequency resonance, leading to broadband interaction and the occurrence of nonlinear electromagnetic intercellular resonances. It has been proved that the transport of substances through the cell membrane is a controlled probabilistic process of continuous movement of molecules and ions through the cell in two directions - from the environment surrounding the membrane and to the membrane environment. These phenomena can be associated with analytic dependence.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123325973","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
Static Characteristics of Zero-Current-Switching Quasi-Resonant Buck Converter under Variation of Resonant Circuit and Load Parameters 谐振电路和负载参数变化下零电流开关准谐振降压变换器的静态特性
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927073
A. Dymerets, Roman D. Yershov, A. Gorodny, Anatoliy S. Revko, Danyil Savchenko, Svitlana V. Lytvyn
{"title":"Static Characteristics of Zero-Current-Switching Quasi-Resonant Buck Converter under Variation of Resonant Circuit and Load Parameters","authors":"A. Dymerets, Roman D. Yershov, A. Gorodny, Anatoliy S. Revko, Danyil Savchenko, Svitlana V. Lytvyn","doi":"10.1109/ELNANO54667.2022.9927073","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927073","url":null,"abstract":"The influence of resonant circuit parameters on static characteristics of a half-wave buck zero-current-switching quasi-resonant converter is investigated. The dependences of the maximum voltage conversion ratio under variation of resonant circuit time constant and characteristic impedance with different load impedance values are obtained by dint of multi-factor numeric simulation. The dependences of the ratio between the transistor current peak value and load impedance rms value under variation of resonant circuit time constant and characteristic impedance with different load impedance values are also obtained. Approximated equations for above dependencies are fitted. The research results allow determining the allowable limits of resonant inductance and capacitance values, as well as the load impedance to maintain the zero-current-switching mode.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123991874","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
Modified Neural Network Method for Classifying the Helicopters Turboshaft Engines Ratings at Flight Modes 直升机涡轴发动机飞行模式等级分类的改进神经网络方法
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927108
S. Vladov, Yurii Shmelov, Ruslan Yakovliev
{"title":"Modified Neural Network Method for Classifying the Helicopters Turboshaft Engines Ratings at Flight Modes","authors":"S. Vladov, Yurii Shmelov, Ruslan Yakovliev","doi":"10.1109/ELNANO54667.2022.9927108","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927108","url":null,"abstract":"This work is devoted to the modification of neural network method for classifying the helicopters turboshaft engines ratings at flight modes using neural network technologies, which, through the use of a new hybrid network of ART-1 and BAM, made it possible to improve the quality of recognition of operating modes to almost 100 %. The hybrid network ART-1 and BAM training process was modified, which made it possible to adapt the network without adding a new class and train it to recognize existing classes when the incoming data only slightly differs from those recorded in long-term memory. This makes it possible to associate non-identical data with one identifier vector, which makes it possible, when using the classifier in helicopters turboshaft engines automatic control system, to correctly respond to the presented data.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130713559","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
Structure, Morphology, and Magnetic Properties of New Multiferroic Nanocomposite Obtained by High-Pressure Torsion 高压扭转制备的新型多铁纳米复合材料的结构、形貌和磁性能
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927051
Chunrui Song, N. Liedienov, A. Pashchenko, I. Fesych, G. Levchenko, Wei Xu
{"title":"Structure, Morphology, and Magnetic Properties of New Multiferroic Nanocomposite Obtained by High-Pressure Torsion","authors":"Chunrui Song, N. Liedienov, A. Pashchenko, I. Fesych, G. Levchenko, Wei Xu","doi":"10.1109/ELNANO54667.2022.9927051","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927051","url":null,"abstract":"Structure, morphology, chemical composition, and magnetic properties of the new multiferroic nanocomposite have been investigated by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and magnetic methods. The $0.8mathbf{Bi}_{0.9}mathbf{La}_{0.1}mathbf{FeO}_{3}-0.2mathbf{Mn}_{0.6}mathbf{Zn}_{0.3}mathbf{FeO}_{4}$ nanocomposite has been prepared by the high-pressure torsion method from the powder mixture consisting of 80 wt.% $mathbf{Bi}_{0.9}mathbf{La}_{0.1}mathbf{FeO}_{3}$ and 20 wt.% $mathbf{Mn}_{0.6}mathbf{Zn}_{0.3}mathbf{FeO}_{4}$. According to the structural data, the particle size of the initial stochiometric powders decreases dramatically from 131 to 14 nm for the $mathbf{Bi}_{0.9}mathbf{La}_{0.1}mathbf{FeO}_{3}$ fractions and from 15 to 12 nm for the $mathbf{Mn}_{0.6}mathbf{Zn}_{0.3}mathbf{FeO}_{4}$ fractions after the high-pressure torsion. Based on the analysis of the magnetic data, the $mathbf{Bi}_{0.9}mathbf{La}_{0.1}mathbf{FeO}_{3}$ multiferroic and $mathbf{Mn}_{0.6}mathbf{Zn}_{0.3}mathbf{FeO}_{4}$ ferrospinel show weak and strong ferromagnetic behaviors, respectively. The combination of the multiferroic $mathbf{Bi}_{0.9}mathbf{La}_{0.1}mathbf{FeO}_{3}$ and ferromagnetic $mathbf{Mn}_{0.6}mathbf{Zn}_{0.3}mathbf{FeO}_{4}$ phases has improved the magnetoelectric coupling of the new nanocomposite.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125339382","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
Video Channel Suppression Method of Unmanned Aerial Vehicles 无人机视频信道抑制方法
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927105
Volodymyr Sokolov, P. Skladannyi, Artem Platonenko
{"title":"Video Channel Suppression Method of Unmanned Aerial Vehicles","authors":"Volodymyr Sokolov, P. Skladannyi, Artem Platonenko","doi":"10.1109/ELNANO54667.2022.9927105","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927105","url":null,"abstract":"For this paper, a noise generator based on the ADF435x board was developed and a spectrum analyzer based on Pololu Wixel with OLED. A simple Unmanned Aerial Vehicle (UAV) DJI Tello was used as a test bench, which operates in the 2.4 GHz frequency range. The problem of cooling the stationary UAV was constructively solved during the creation of the experimental model. The study results show that the influence of an external noise generator can lead to significant image distortions, which can lead to piloting errors. And after the limit value of 7.33%, the video signal transmission is stopped, and the control signals may be partially lost.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114746723","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: 3
Oxide-Based Nanometric Layers Integrated With Silicon Substrate For New Multifunctional Applications 氧化基纳米层与硅衬底集成用于新的多功能应用
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927124
R. Savkina, Oleksii Smirnov, S. Mulenko
{"title":"Oxide-Based Nanometric Layers Integrated With Silicon Substrate For New Multifunctional Applications","authors":"R. Savkina, Oleksii Smirnov, S. Mulenko","doi":"10.1109/ELNANO54667.2022.9927124","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927124","url":null,"abstract":"Oxide-based structures are receiving increasing interest due to their potential application in advanced nanodevices and nanosystems toward sectors of energy, environmental and detecting. In this work, multi-component structures based on nanometric chromium (Cr3-XO3-Y) and iron oxide (Fe2O3-Y) layers and composite nanostructure such as Si-SiO2-(CaO-SiO2) were designed using method of reactive pulsed laser deposition and sonochemical synthesis. Electric and photoelectric properties of the obtained oxide-based structures were investigated. It was found a surprising changes in the surface photovoltage responsivity of the nanometric layers integrated with silicon substrate at photoexcitation with photon energies greater than the band gap of Si. Besides, independent of the different origin, configuration and geometry of the structures studied, the inductive-type impedance has been observed for all of them.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123280954","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
40.5-42.5 GHz Band Antenna Based on the Dielectric Resonator Using Whispering Gallery Modes 基于低语廊模式的40.5-42.5 GHz介质谐振器天线
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927106
O. Kogut, Yevgeniy Kogut, I. Kuzmichev, Sergiy Nosatiuk, O. Voitovych, Dmytro Anamanskiy
{"title":"40.5-42.5 GHz Band Antenna Based on the Dielectric Resonator Using Whispering Gallery Modes","authors":"O. Kogut, Yevgeniy Kogut, I. Kuzmichev, Sergiy Nosatiuk, O. Voitovych, Dmytro Anamanskiy","doi":"10.1109/ELNANO54667.2022.9927106","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927106","url":null,"abstract":"It is proposed to use a whispering gallery mode dielectric resonator with a segmental curved surface as mm-wave omnidirectional antenna with a multi-lobe radiation pattern in the azimuthal plane. The directions of the maxima of the lobes of the diagram can be shifted by a small change in frequency. This makes it possible to form a pie chart and cover the entire sector of angles 0 … 360 degrees. The antenna is made of Teflon. The measurements of the parameters of the radiation pattern have been carried out. The dependences of its shape on frequency are obtained.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128658088","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
Structural and Magnetocaloric Properties of Classical Rare-Earth Manganite Ceramics 经典稀土锰酸盐陶瓷的结构和磁热性能
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9926998
Zhiwei Gong, N. Liedienov, A. Pashchenko, Ziyu Wei, Wei Xu
{"title":"Structural and Magnetocaloric Properties of Classical Rare-Earth Manganite Ceramics","authors":"Zhiwei Gong, N. Liedienov, A. Pashchenko, Ziyu Wei, Wei Xu","doi":"10.1109/ELNANO54667.2022.9926998","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9926998","url":null,"abstract":"Structure, microstructure, chemical and phase composition, as well as magnetic state and magnetocaloric effect of the $text{La}_{0.9}text{Mn}_{1.1}mathrm{O}_{3}$ manganite have been investigated by X-ray diffraction, energy-dispersive X-ray spectroscopy, scanning electron microscopy, and magnetic methods. The $text{La}_{0.9}text{Mn}_{1.1}mathrm{O}_{3}$ ceramics have been synthesized using a two-step solid-state reaction method at an annealing temperature of $1150^{circ}mathrm{C}$ (22 h). Based on the X-ray diffraction results, a crystal structure of the $text{La}_{0.9}text{Mn}_{1.1}mathrm{O}_{3}$ ceramic has a rhombohedral $R-3c$ (No. 167) type of symmetry. Chemical and phase composition of the $text{La}_{0.9}text{Mn}_{1.1}mathrm{O}_{3}$ sample has been confirmed by energy-dispersive X-ray spectroscopy. The average grain size has been determined by means of Nano Measure 1.2.5 software and is 1.6 $mu mathrm{m}$. Based on the magnetic data, $text{La}_{0.9}text{Mn}_{1.1}mathrm{O}_{3}$ ceramic displays a ferromagnetic to paramagnetic phase transition at the Curie temperature $T_{mathrm{C}}=227mathrm{K}$ with a high magnetic entropy change $Delta S_{mathrm{M}}{}^{max}=-3.50mathrm{J}/(text{kg}cdot mathrm{K})$ at the field of 2 T. Moreover, the magnetic parameters in the paramagnetic state have been defined using the Curie- Weiss law.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128563172","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
Magnetic Properties of MoS2 and WS2 Powders MoS2和WS2粉末的磁性能
2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2022-10-10 DOI: 10.1109/ELNANO54667.2022.9927028
M. Olenchuk, G. Dovbeshko, A. Bodnaruk, Grygoryi Monastyrskyi, V. Bykov
{"title":"Magnetic Properties of MoS2 and WS2 Powders","authors":"M. Olenchuk, G. Dovbeshko, A. Bodnaruk, Grygoryi Monastyrskyi, V. Bykov","doi":"10.1109/ELNANO54667.2022.9927028","DOIUrl":"https://doi.org/10.1109/ELNANO54667.2022.9927028","url":null,"abstract":"Recently, new properties of two-dimensional (2D) materials have attracted much attention. MoS2 is the most studied two-dimensional material after graphene due to its unique optical, electronic, mechanical, and magnetic properties. Magnetostatic studies were performed for MoS2 and WS2 powders. It is shown that ferromagnetic behavior is present in MoS2, which can be due to local structure reorganization of a few layers of MoS2 on the edges of the particles, non-stoichiometry of the samples, vacancies, and negligible admixtures. Studies of the WS2 sample at low and room temperatures have shown that it is diamagnetic. The obtained results are useful for applications of the low-dimensional transition metal dichalcogenides in spintronics, magnetotronics, and strain engineering.","PeriodicalId":178034,"journal":{"name":"2022 IEEE 41st International Conference on Electronics and Nanotechnology (ELNANO)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120962254","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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