首页 > 最新文献

11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)最新文献

英文 中文
Information-entropic method for estimation of invariant controlling systems 不变控制系统估计的信息熵法
V. K. Steklov, N.M. Starodub, L. Berkman
Describes the properties of the combined system of information network control. The method is presented, determining the quantity of controlling information which is necessary in order to ensure the given accuracy of network parameters, while keeping the system invariant under various conditions.
介绍了信息网络控制组合系统的特性。提出了在保证给定网络参数精度的同时,在各种条件下保持系统不变性的控制信息量的确定方法。
{"title":"Information-entropic method for estimation of invariant controlling systems","authors":"V. K. Steklov, N.M. Starodub, L. Berkman","doi":"10.1109/CRMICO.2001.961545","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961545","url":null,"abstract":"Describes the properties of the combined system of information network control. The method is presented, determining the quantity of controlling information which is necessary in order to ensure the given accuracy of network parameters, while keeping the system invariant under various conditions.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133508078","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
Element of the W-band phased antenna array w波段相控天线阵的元件
V. M. Krekhtunov, E.V. Andropov, E. V. Komissarova, U.S. Rusov
An element of the reflective phased antenna array (RPAA) for the W-band with electrical beam-scanning is developed. The element contains a horn-dielectric radiator and waveguide ferrite phase shifter of a reflective type with magnetic memory, which produces a phase shift 0-400/spl deg/ in a 93-95 GHz frequency band. When a triangular grid element arrangement is used in an antenna array with 1.25/spl lambda/ spacing, the sector of the array scanning 2/spl theta/=30/spl deg/ is ensured.
研制了一种用于w波段电子束扫描的反射相控阵元件。该元件包含一个喇叭介质辐射器和具有磁记忆的反射型波导铁氧体移相器,在93-95 GHz频段产生0-400/spl度/相移。在间距为1.25/spl λ /的天线阵列中采用三角形网格单元布置时,可以保证阵列扫描扇区为2/spl θ /=30/spl度/。
{"title":"Element of the W-band phased antenna array","authors":"V. M. Krekhtunov, E.V. Andropov, E. V. Komissarova, U.S. Rusov","doi":"10.1109/CRMICO.2001.961576","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961576","url":null,"abstract":"An element of the reflective phased antenna array (RPAA) for the W-band with electrical beam-scanning is developed. The element contains a horn-dielectric radiator and waveguide ferrite phase shifter of a reflective type with magnetic memory, which produces a phase shift 0-400/spl deg/ in a 93-95 GHz frequency band. When a triangular grid element arrangement is used in an antenna array with 1.25/spl lambda/ spacing, the sector of the array scanning 2/spl theta/=30/spl deg/ is ensured.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133820257","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
Optimum scanning for the control of information flows in telecommunication networks 电信网信息流控制的最佳扫描
V.P. Vinnitsky, S.O. Kotseruba, S.I. Skripchenko
The authors have found Laplace-Stiltiece transformation for the time of message delivery to the receiver, as well as its response in the form of appropriate controlling frames. We have obtained the expression for estimation of optimal mean value of scanning period. Boundary conditions of scanning period have been laid down for several routing methods.
作者已经发现了消息传递到接收者的时间的拉普拉斯-斯蒂蒂斯变换,以及它的响应以适当的控制帧的形式。得到了扫描周期最优均值的估计表达式。给出了几种路由方法的扫描周期边界条件。
{"title":"Optimum scanning for the control of information flows in telecommunication networks","authors":"V.P. Vinnitsky, S.O. Kotseruba, S.I. Skripchenko","doi":"10.1109/CRMICO.2001.961550","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961550","url":null,"abstract":"The authors have found Laplace-Stiltiece transformation for the time of message delivery to the receiver, as well as its response in the form of appropriate controlling frames. We have obtained the expression for estimation of optimal mean value of scanning period. Boundary conditions of scanning period have been laid down for several routing methods.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133028917","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
Combined self-consistent resonant-tunneling diode model 组合式自洽谐振-隧道二极管模型
I. I. Abramov, I. Goncharenko
A new combined self-consistent RTD model based on Schrodinger and Poisson equations is described. the model can be used for self-consistent potential/charge and electrical characteristics calculations.
提出了一种新的基于薛定谔方程和泊松方程的组合自洽RTD模型。该模型可用于自洽电位/电荷和电特性计算。
{"title":"Combined self-consistent resonant-tunneling diode model","authors":"I. I. Abramov, I. Goncharenko","doi":"10.1109/CRMICO.2001.961622","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961622","url":null,"abstract":"A new combined self-consistent RTD model based on Schrodinger and Poisson equations is described. the model can be used for self-consistent potential/charge and electrical characteristics calculations.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116227351","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
IEMC (Integral Electromagnetic Code) 积分电磁码
A. Pashchenko, I. Shapoval, V. Novikov
We present an Integral Electromagnetic Code (IEMC) developed for studies of high-current relativistic diodes, and supply examples of their applied usage. An in-circuit approach has been developed with an appropriate theory elaborated in order to analyze experimental data and numerical simulation results.
我们提出了一种用于研究大电流相对论性二极管的积分电磁码(IEMC),并提供了它们的应用实例。为了分析实验数据和数值模拟结果,提出了一种在线方法,并阐述了相应的理论。
{"title":"IEMC (Integral Electromagnetic Code)","authors":"A. Pashchenko, I. Shapoval, V. Novikov","doi":"10.1109/CRMICO.2001.961660","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961660","url":null,"abstract":"We present an Integral Electromagnetic Code (IEMC) developed for studies of high-current relativistic diodes, and supply examples of their applied usage. An in-circuit approach has been developed with an appropriate theory elaborated in order to analyze experimental data and numerical simulation results.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114849547","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
MITRIS-M system for creation of TV, radio and information networks within a ward MITRIS-M系统,用于在病房内建立电视、广播和信息网络
A.G. Voytenko, V. Denisenko, T.N. Narytnik, P.Ya. Ksensenko
Presents the results of development and adoption of MITRIS-M system near Novgorod-Siversk (Chernigov region). The system includes high-power 4-channel microwave subsystem with radius of service zone up to 50 km, low-power 12-channel microwave subsystem with radius of service zone up to 10 km and a set of low-power retransmitters in the decimeter waveband.
介绍了在诺夫哥罗德-西维尔斯克(切尔尼戈夫地区)附近开发和采用MITRIS-M系统的结果。该系统包括服务半径为50 km的大功率4通道微波分系统、服务半径为10 km的低功率12通道微波分系统和一组分米波段的低功率中继器。
{"title":"MITRIS-M system for creation of TV, radio and information networks within a ward","authors":"A.G. Voytenko, V. Denisenko, T.N. Narytnik, P.Ya. Ksensenko","doi":"10.1109/CRMICO.2001.961471","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961471","url":null,"abstract":"Presents the results of development and adoption of MITRIS-M system near Novgorod-Siversk (Chernigov region). The system includes high-power 4-channel microwave subsystem with radius of service zone up to 50 km, low-power 12-channel microwave subsystem with radius of service zone up to 10 km and a set of low-power retransmitters in the decimeter waveband.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116168670","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
Systems for controlling of reservoir supplies of oil and oil-products 油和油品的储油供应控制系统
A. Elizarov, V.N. Kopusov, M.M. Muzychin
High-accuracy measurement of product level in a reservoir is very necessary for determination of its mass both in static and in dynamic states. The exactness of level determination is connected with the exactness of distance measurement up to the air-product boundary. The designed system uses the radar phase method of distance measurement. Based on this level radar, the design principles and experimental results of a level control system for oil reserves in reservoirs and oil products are discussed.
无论在静态状态还是在动态状态下,对储层中产物液位的高精度测量是非常必要的。水平确定的准确性与空气产物边界的距离测量的准确性有关。设计的系统采用雷达相位法进行距离测量。在此基础上,讨论了油层及油品储量液位控制系统的设计原理和实验结果。
{"title":"Systems for controlling of reservoir supplies of oil and oil-products","authors":"A. Elizarov, V.N. Kopusov, M.M. Muzychin","doi":"10.1109/CRMICO.2001.961703","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961703","url":null,"abstract":"High-accuracy measurement of product level in a reservoir is very necessary for determination of its mass both in static and in dynamic states. The exactness of level determination is connected with the exactness of distance measurement up to the air-product boundary. The designed system uses the radar phase method of distance measurement. Based on this level radar, the design principles and experimental results of a level control system for oil reserves in reservoirs and oil products are discussed.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116487956","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
Wideband tunable MM-wave GaAs generator 宽带可调谐毫米波砷化镓发生器
A.V. Dyadchenko, A. Mishnyov, E. Prokhorov
The experimental research results of a waveguide-coaxial design of the MM-range broadband GaAs Gunn generator are given. A frequency band of mechanical tuning for the generator of /spl sim/23 GHz (from 44 up to 67 GHz) is obtained.
给出了一种毫米波段宽带GaAs Gunn发生器波导同轴设计的实验研究结果。获得了/spl sim/23 GHz的机械调谐频段(从44到67 GHz)。
{"title":"Wideband tunable MM-wave GaAs generator","authors":"A.V. Dyadchenko, A. Mishnyov, E. Prokhorov","doi":"10.1109/CRMICO.2001.961512","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961512","url":null,"abstract":"The experimental research results of a waveguide-coaxial design of the MM-range broadband GaAs Gunn generator are given. A frequency band of mechanical tuning for the generator of /spl sim/23 GHz (from 44 up to 67 GHz) is obtained.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123408172","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
Using of autodyne transceiver modules on Gunn diodes for determination of turbomachine blades deformations 利用Gunn二极管上的自激收发模块测定涡轮机叶片变形
A. Danilin, S. Votoropin, A. G. Tcherniavski
The levels of mechanical deformations of dynamically loaded blades in modern turbomachines in great extent define durability and reliability of gas-turbine engines. The report materials present the radar method and device for control of dynamic blades characteristics of gas-turbine engines (GTE). Primary converters with autodyne transceiver modules based on Gunn diodes are used in the discrete-phase method (DPM) equipment. The block diagram of the measuring setup and results of experimental studies are given.
现代涡轮机械中动载叶片的机械变形程度在很大程度上决定了燃气涡轮发动机的耐久性和可靠性。报告材料介绍了燃气涡轮发动机叶片动态特性控制的雷达方法和装置。在离散相法(DPM)设备中采用了一次变换器和基于Gunn二极管的自差收发模块。给出了测量装置框图和实验研究结果。
{"title":"Using of autodyne transceiver modules on Gunn diodes for determination of turbomachine blades deformations","authors":"A. Danilin, S. Votoropin, A. G. Tcherniavski","doi":"10.1109/CRMICO.2001.961705","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961705","url":null,"abstract":"The levels of mechanical deformations of dynamically loaded blades in modern turbomachines in great extent define durability and reliability of gas-turbine engines. The report materials present the radar method and device for control of dynamic blades characteristics of gas-turbine engines (GTE). Primary converters with autodyne transceiver modules based on Gunn diodes are used in the discrete-phase method (DPM) equipment. The block diagram of the measuring setup and results of experimental studies are given.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124061755","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: 4
Microwave pipe corrosion detector 微波管道腐蚀探测器
V.P. Vaskivsky, Y. Kempa, S.I. Koba, R.V. Klymonchuk, O.B. Lyashchyk, N.A. Naumets, Y. Rybak, G.V. Tsukornuk
The paper presents the results of design, manufacture and research of a microwave detector for detecting the pipe corrosion under an optically opaque coating and protective coating separation. The detector operates in the 5 mm wave band. A minimum diameter of the detected defect is 5-8 mm with an antenna horn aperture diameter of 60 mm. The antenna horn diameter may be changed. The device consists of two blocks: EHF sensor and microprocessor unit with graphic LC-display. Power supply is 220 V, 50 Hz and 8 W.
本文介绍了一种用于检测不透明涂层和保护涂层分离情况下管道腐蚀的微波探测器的设计、制造和研究结果。探测器工作在5毫米波段。检测到的缺陷最小直径为5mm ~ 8mm,天线喇叭孔径为60mm。天线喇叭直径可以改变。该装置由两个模块组成:EHF传感器和带有图形lc显示的微处理器单元。电源为220v, 50hz, 8w。
{"title":"Microwave pipe corrosion detector","authors":"V.P. Vaskivsky, Y. Kempa, S.I. Koba, R.V. Klymonchuk, O.B. Lyashchyk, N.A. Naumets, Y. Rybak, G.V. Tsukornuk","doi":"10.1109/CRMICO.2001.961707","DOIUrl":"https://doi.org/10.1109/CRMICO.2001.961707","url":null,"abstract":"The paper presents the results of design, manufacture and research of a microwave detector for detecting the pipe corrosion under an optically opaque coating and protective coating separation. The detector operates in the 5 mm wave band. A minimum diameter of the detected defect is 5-8 mm with an antenna horn aperture diameter of 60 mm. The antenna horn diameter may be changed. The device consists of two blocks: EHF sensor and microprocessor unit with graphic LC-display. Power supply is 220 V, 50 Hz and 8 W.","PeriodicalId":197471,"journal":{"name":"11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128498870","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: 4
期刊
11th International Conference 'Microwave and Telecommunication Technology'. Conference Proceedings (IEEE Cat. No.01EX487)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1