Pub Date : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037042
D. But, I. Morkunaitė, Y. Ivonyak, C. Kołaciński, K. Ikamas, W. Knap, A. Lisauskas
This paper reports on our recent advances in CMOS-based electronic sources and detectors developed for the terahertz frequency range and examples of practical applications. The presented quasi-optical emitter-detector pair systems operate in the 200 - 266 GHz range exhibiting input power-related signal-to-noise ratio exceeding 70 dB in the direct detection regime for one Hz equivalent noise bandwidth. It combines a high-performance detector based on CMOS field-effect transistors and a voltage-controlled oscillator employing Si or SiGe bipolar transistors provided by the 65 nm CMOS or 130 nm BiCMOS fabrication processes.
{"title":"Quasi-optical Terahertz Devices Based on Silicon in CMOS and BiCMOS Technology","authors":"D. But, I. Morkunaitė, Y. Ivonyak, C. Kołaciński, K. Ikamas, W. Knap, A. Lisauskas","doi":"10.1109/UkrMW58013.2022.10037042","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037042","url":null,"abstract":"This paper reports on our recent advances in CMOS-based electronic sources and detectors developed for the terahertz frequency range and examples of practical applications. The presented quasi-optical emitter-detector pair systems operate in the 200 - 266 GHz range exhibiting input power-related signal-to-noise ratio exceeding 70 dB in the direct detection regime for one Hz equivalent noise bandwidth. It combines a high-performance detector based on CMOS field-effect transistors and a voltage-controlled oscillator employing Si or SiGe bipolar transistors provided by the 65 nm CMOS or 130 nm BiCMOS fabrication processes.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115485768","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037104
D. Vinnikov, V. Katrechko, Volodymyr Yuferov, S. Mizrakhy, P. Nesterov, V. Bezborodov, Igor Nesterov, A. Lukash, I. Kolenov
Experimental plasma gun testing bench on the basis of the virtual cathode has been presented. A number of plasma characteristics such as discharge voltage, plasma temperature, glow dynamics and others are estimated. The interferometer scheme was developed, successfully installed, and preliminarily tested on the experimental testing bench. Obtained results will be used for electron concentration measurement of plasma in the millimeter wave band.
{"title":"The Millimeter Wave Plasma Diagnostics of the Guns Used for the Accelerators Operating on the Basis of the Virtual Cathode","authors":"D. Vinnikov, V. Katrechko, Volodymyr Yuferov, S. Mizrakhy, P. Nesterov, V. Bezborodov, Igor Nesterov, A. Lukash, I. Kolenov","doi":"10.1109/UkrMW58013.2022.10037104","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037104","url":null,"abstract":"Experimental plasma gun testing bench on the basis of the virtual cathode has been presented. A number of plasma characteristics such as discharge voltage, plasma temperature, glow dynamics and others are estimated. The interferometer scheme was developed, successfully installed, and preliminarily tested on the experimental testing bench. Obtained results will be used for electron concentration measurement of plasma in the millimeter wave band.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114666413","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10036987
I. Prokopenko, Anastasiia Dmytruk
In this paper the problem of ensuring the stability of the algorithm for detecting radar signals reflected from a moving target against the background of non-Gaussian interference is considered. An empirical Bayesian approach for the synthesis of decision-making rules is implemented using an autoregressive disturbance model, and a robust adaptive algorithm is also developed. Efficiency of the synthesized algorithm under the influence of non-Gaussian interference distributed according to the laws of Laplace and K-distribution is defined. Computer simulation was carried out using the Monte Carlo method.
{"title":"Ensuring the Robustness of the Algorithm for Detecting Signals of Moving Targets against the Background of Non-Gaussian Clutter","authors":"I. Prokopenko, Anastasiia Dmytruk","doi":"10.1109/UkrMW58013.2022.10036987","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10036987","url":null,"abstract":"In this paper the problem of ensuring the stability of the algorithm for detecting radar signals reflected from a moving target against the background of non-Gaussian interference is considered. An empirical Bayesian approach for the synthesis of decision-making rules is implemented using an autoregressive disturbance model, and a robust adaptive algorithm is also developed. Efficiency of the synthesized algorithm under the influence of non-Gaussian interference distributed according to the laws of Laplace and K-distribution is defined. Computer simulation was carried out using the Monte Carlo method.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116540424","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037030
O. Botsula, K. Prykhodko, V. Zozulia
Modeling results of planar 2D/3D semiconductor heterostructure based on GaN/MoS2 junction are presented. The heterostructure represents a III-nitride based planar diode with length of $1 mumathrm{m}$, The diode has a GaN n-type channel and MoS2 layer placed at the bottom and connected to anode contact. Doping concentration in the channel is $(1-6)cdot 10^{22}mathrm{m}^{-3}$. Model of electron exchange between 2D and 3D regions of the diode is proposed. Electron transition between 2D and 3D region of diode is suggested to occur due to polar optical phonon scattering. Monte Carlo simulation of electron transport in device is carried out. Dependences of current density on applied voltage are obtained. Impact of parameters of MoS2 layers on current – voltage characteristic of diodes is discussed.
{"title":"Modeling of Planar 2D/3D Semiconductor Heterostructures Based on MoS2/GaN Junction","authors":"O. Botsula, K. Prykhodko, V. Zozulia","doi":"10.1109/UkrMW58013.2022.10037030","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037030","url":null,"abstract":"Modeling results of planar 2D/3D semiconductor heterostructure based on GaN/MoS2 junction are presented. The heterostructure represents a III-nitride based planar diode with length of $1 mumathrm{m}$, The diode has a GaN n-type channel and MoS2 layer placed at the bottom and connected to anode contact. Doping concentration in the channel is $(1-6)cdot 10^{22}mathrm{m}^{-3}$. Model of electron exchange between 2D and 3D regions of the diode is proposed. Electron transition between 2D and 3D region of diode is suggested to occur due to polar optical phonon scattering. Monte Carlo simulation of electron transport in device is carried out. Dependences of current density on applied voltage are obtained. Impact of parameters of MoS2 layers on current – voltage characteristic of diodes is discussed.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114581946","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037147
O. Voitiuk, E. Tverytnykova, M. Gutnyk, N. Kuzmenko, Tatyana Kolisnyk
The studies of Ukrainian scientists in the field of remote sensing of the Earth are significant. Among them are fundamental and applied studies by scientists of the National Academy of Sciences of Ukraine, scientists of the higher technical school, and representatives of the industry sector. The significant contribution to the creation of scientific equipment for remote sensing of the Earth belongs to specialists of Pivdenne State Design Office, Joint Stock Company “Khartron”. Their contribution to the creation of spacecraft for remote sensing of the Earth in Ukraine in the 1970s - 2020s was studied. The key stages of the creation of space vehicles, which were developed by specialists of the “Pivdenne”, such as Ocean-OESC, Ocean-O1SC, Ocean-OSC, Duga-K SC, Bhaskara SC, Bhaskara-IISC, Egyptsat-1SC, Sich-1SC, Sich-1MSC, MikronSC, Sich-2SC, Sich-2-30SC were illustrated. The work performance of remote sensing spacecraft is characterized. The contribution of specialists of branch enterprises of the State Space Agency of Ukraine to the creation of a space operational system for the study of natural resources of the Earth “Resurs”, and the development of a method of remote measurement of physical parameters of the ocean and atmosphere, calibration of remote sensing data, as well as a system of over-the-horizon radar, and space means of radio-electronic surveillance was outlined. It is shown that the participation of scientists in the solving of many scientific and technical problems like the creation of space vehicles for obtaining information simultaneously in the optical, infrared, and microwave ranges contributed to the further development, and the creation of innovative methods, and technical means of remote sensing; to the solving practical and scientific tasks in the study of the atmosphere, and the World Ocean; and the implementation of the Ukrainian and international space programs such as Sich, Interkosmos, Ocean, and Egyptsat-1.
{"title":"Development and Practical Application of the Space System of Earth Observation in Ukraine (from Experience DO “Pivdenne” and JSC “Khartron”)","authors":"O. Voitiuk, E. Tverytnykova, M. Gutnyk, N. Kuzmenko, Tatyana Kolisnyk","doi":"10.1109/UkrMW58013.2022.10037147","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037147","url":null,"abstract":"The studies of Ukrainian scientists in the field of remote sensing of the Earth are significant. Among them are fundamental and applied studies by scientists of the National Academy of Sciences of Ukraine, scientists of the higher technical school, and representatives of the industry sector. The significant contribution to the creation of scientific equipment for remote sensing of the Earth belongs to specialists of Pivdenne State Design Office, Joint Stock Company “Khartron”. Their contribution to the creation of spacecraft for remote sensing of the Earth in Ukraine in the 1970s - 2020s was studied. The key stages of the creation of space vehicles, which were developed by specialists of the “Pivdenne”, such as Ocean-OESC, Ocean-O1SC, Ocean-OSC, Duga-K SC, Bhaskara SC, Bhaskara-IISC, Egyptsat-1SC, Sich-1SC, Sich-1MSC, MikronSC, Sich-2SC, Sich-2-30SC were illustrated. The work performance of remote sensing spacecraft is characterized. The contribution of specialists of branch enterprises of the State Space Agency of Ukraine to the creation of a space operational system for the study of natural resources of the Earth “Resurs”, and the development of a method of remote measurement of physical parameters of the ocean and atmosphere, calibration of remote sensing data, as well as a system of over-the-horizon radar, and space means of radio-electronic surveillance was outlined. It is shown that the participation of scientists in the solving of many scientific and technical problems like the creation of space vehicles for obtaining information simultaneously in the optical, infrared, and microwave ranges contributed to the further development, and the creation of innovative methods, and technical means of remote sensing; to the solving practical and scientific tasks in the study of the atmosphere, and the World Ocean; and the implementation of the Ukrainian and international space programs such as Sich, Interkosmos, Ocean, and Egyptsat-1.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129603680","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037145
V. Riabukha, A. Semeniaka, Y. Katiushyn, D. Atamanskiy
The paper describes the principles for formation of a simulated pulse DRFM jamming in response to a sounding linear frequency modulated (LFM) pulse, the technique and results of mathematical (simulation) modeling of such a jamming.
{"title":"Pulse DRFM Jamming Formation and Its Mathematical Simulation","authors":"V. Riabukha, A. Semeniaka, Y. Katiushyn, D. Atamanskiy","doi":"10.1109/UkrMW58013.2022.10037145","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037145","url":null,"abstract":"The paper describes the principles for formation of a simulated pulse DRFM jamming in response to a sounding linear frequency modulated (LFM) pulse, the technique and results of mathematical (simulation) modeling of such a jamming.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128480422","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037134
A. Sizhuk, Zhenjie Zhao, Xiaohong Chen, Zhuo Sun, G. Dong, O. Prokopenko, A. Tretyak
The induced by the changing magnetic field bending vibration of the microribbon Fe73.5Cu1Nb3Si13.5B9 with the fixed one end at the range of low sound frequencies is experimentally observed. The as-cast and annealed samples are tested for low-frequency resonant vibrations. In the given region of frequencies for an inducing magnetic field, the resonant frequencies of the induced mechanical vibrations are found. The decay coefficient, measured for the mechanical self-vibration of the annealed sample, is derived. When a relatively weak permanent magnet approaches the microribbons in the direction, perpendicular to the bending vibration, the cessation of the mechanical vibration in the direction is sighted for both, as-cast and annealed samples. The spin nature and the corresponding contribution of the Einstein-de Haas effect are discussed to explain the observed.
{"title":"The Vibration of FINEMET Microribbon in Magnetic Field at Low Sound Frequency","authors":"A. Sizhuk, Zhenjie Zhao, Xiaohong Chen, Zhuo Sun, G. Dong, O. Prokopenko, A. Tretyak","doi":"10.1109/UkrMW58013.2022.10037134","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037134","url":null,"abstract":"The induced by the changing magnetic field bending vibration of the microribbon Fe73.5Cu1Nb3Si13.5B9 with the fixed one end at the range of low sound frequencies is experimentally observed. The as-cast and annealed samples are tested for low-frequency resonant vibrations. In the given region of frequencies for an inducing magnetic field, the resonant frequencies of the induced mechanical vibrations are found. The decay coefficient, measured for the mechanical self-vibration of the annealed sample, is derived. When a relatively weak permanent magnet approaches the microribbons in the direction, perpendicular to the bending vibration, the cessation of the mechanical vibration in the direction is sighted for both, as-cast and annealed samples. The spin nature and the corresponding contribution of the Einstein-de Haas effect are discussed to explain the observed.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129422562","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037101
S. Panasenko, O. Bogomaz, Natalia Katrych, D. Dzyubanov
We present a concept of atmospheric gravity wave (AGW) detector based on the fuzzy logic approach. The random-generated data as well as the data acquired using Kharkiv incoherent scatter (IS) radar are employed to test the expert system under development. We designed and selected input and output variables, types of membership functions and wrote the rules for the operation of the expert system. As input variables, we used two equivalent signal-to-noise ratios and oscillation durations at two adjacent heights as well as differences between phases, onsets and periods of these oscillations. Detection capability and belonging to wave were assigned to the output variables. Testing of the program detector using a number of randomly generated signals showed that it correctly detects the received signal the determines the signatures of wave patterns. We also apply the developed approach to detect traveling ionospheric disturbances caused by AGW propagation near local solar terminator passage times in the altitude-time maps of IS power.
{"title":"Fuzzy Logic Program Detector of Atmospheric Gravity Waves from Radar Observations","authors":"S. Panasenko, O. Bogomaz, Natalia Katrych, D. Dzyubanov","doi":"10.1109/UkrMW58013.2022.10037101","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037101","url":null,"abstract":"We present a concept of atmospheric gravity wave (AGW) detector based on the fuzzy logic approach. The random-generated data as well as the data acquired using Kharkiv incoherent scatter (IS) radar are employed to test the expert system under development. We designed and selected input and output variables, types of membership functions and wrote the rules for the operation of the expert system. As input variables, we used two equivalent signal-to-noise ratios and oscillation durations at two adjacent heights as well as differences between phases, onsets and periods of these oscillations. Detection capability and belonging to wave were assigned to the output variables. Testing of the program detector using a number of randomly generated signals showed that it correctly detects the received signal the determines the signatures of wave patterns. We also apply the developed approach to detect traveling ionospheric disturbances caused by AGW propagation near local solar terminator passage times in the altitude-time maps of IS power.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126225295","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10036959
I. Mytsenko, A. Roenko
The possibility and peculiarities of developing a method and creating a device for remote detection of explosive objects are considered. The proposed device is an active-passive radar consisting of active and passive channels operating on common antenna. The features, advantages and drawbacks of the proposed device are noted in comparison with traditional radar.
{"title":"Passive-active Radar Detection for Explosive Hazards Interdiction","authors":"I. Mytsenko, A. Roenko","doi":"10.1109/UkrMW58013.2022.10036959","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10036959","url":null,"abstract":"The possibility and peculiarities of developing a method and creating a device for remote detection of explosive objects are considered. The proposed device is an active-passive radar consisting of active and passive channels operating on common antenna. The features, advantages and drawbacks of the proposed device are noted in comparison with traditional radar.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133870517","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 : 2022-11-14DOI: 10.1109/UkrMW58013.2022.10037066
A. Vorobyov, S. Unterhofer, Olha Sereda
This paper presents a cost-effective production method for high-precision, complex 3D mm-wave components and antenna prototyping. The selected manufacturing process, Laser Powder bed fusion, has been optimized for high printing resolutions. Two mm-wave (75-110GHz) structures have been designed, prototyped and characterized. These are hollow waveguide sections and iris-based phase shifters.
{"title":"A Cost-effective Production Method for High-precision MM-wave Waveguide Antennas and Components: Invited Paper","authors":"A. Vorobyov, S. Unterhofer, Olha Sereda","doi":"10.1109/UkrMW58013.2022.10037066","DOIUrl":"https://doi.org/10.1109/UkrMW58013.2022.10037066","url":null,"abstract":"This paper presents a cost-effective production method for high-precision, complex 3D mm-wave components and antenna prototyping. The selected manufacturing process, Laser Powder bed fusion, has been optimized for high printing resolutions. Two mm-wave (75-110GHz) structures have been designed, prototyped and characterized. These are hollow waveguide sections and iris-based phase shifters.","PeriodicalId":297673,"journal":{"name":"2022 IEEE 2nd Ukrainian Microwave Week (UkrMW)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134282159","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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