Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462)最新文献_第3页

Minimizing of back-scattering using composite double layer structure of different patch configurations 利用不同贴片结构的复合双层结构最小化后向散射

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929197

M. Abdalla, A. Allam, M. Mokhtar

引用次数: 0

A model of F0 contour for Arabic affirmative and interrogative sentences 阿拉伯语肯定疑问句的F0轮廓模型

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929411

Omar A. G. Ibrahim, S. El-Ramly, N. A. Kader

引用次数: 9

Computer aided design of broadband microwave diode detectors using filter approximations 基于滤波近似的宽带微波二极管探测器的计算机辅助设计

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929415

H.I.M. Al Anwar, E. Hashish, H. El Hennawy, M. El Said

引用次数: 2

Longitudinal electron oscillations in a cold plasma penetrated through by a beam of charged particles with anisotropic temperature 温度各向异性的带电粒子束穿过冷等离子体时的纵向电子振荡

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929421

N. G. Zaki

{"title":"Longitudinal electron oscillations in a cold plasma penetrated through by a beam of charged particles with anisotropic temperature","authors":"N. G. Zaki","doi":"10.1109/NRSC.2001.929421","DOIUrl":"https://doi.org/10.1109/NRSC.2001.929421","url":null,"abstract":"A study is made for a gyrating electron beam interaction with a cold plasma in the presence of an external magnetic field. We derived the appropriate dielectric tensor components for a gyrating electron beam with anisotropic temperature (for different parallel T/sub /spl par/a/ and perpendicular T/sub /spl perp/a/ temperatures with respect to external magnetic field H/spl I.oarr//sub 0/). The importance of special cases for isotropic (T/sub /spl par/a/=T/sub /spl perp/a/) and anisotropic (T/sub /spl par/a//spl Lt/T/sub /spl perp/a/, i.e., if T/sub /spl par/a//spl rarr/0) beam temperature, is investigated. We derived the dispersion equation of longitudinal oscillations in a cold electronic plasma penetrated through by a beam of charged particles with anisotropic temperature (for different parallel T/sub /spl par/a/ and perpendicular T/sub /spl perp/a/ temperatures). As an application, the derived dispersion relation is solved in due course to investigate the current-convective instability (CCI) due to helical beam-plasma interaction. We determined the self longitudinal plasma oscillations in the absence of the beam. We investigated the derived dispersion equation in the two special cases for isotropic (T/sub /spl par/a/=T/sub /spl perp/a/) and anisotropic (T/sub /spl par/a//spl Lt/T/sub /spl perp/a/, i.e., if T/sub /spl par/a//spl rarr/0) beam temperatures. The theory of a helical beam interaction with a plasma can be applied in astrophysics and in the study of the Sun-Earth environment. The study of instabilities in a system of gyrating charges is of special interest for elucidating the conditions of plasma confinement in magnetic traps.","PeriodicalId":123517,"journal":{"name":"Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131446213","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

Arbitrary spherical array in superresolution direction finding systems 超分辨测向系统中的任意球阵

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929169

M. Mokhtar, A. Gamil, H. El-Henawy, S. El-Ramly

引用次数: 0

Fault diagnosis of mixed digital and linear analog circuits 数字与线性模拟混合电路的故障诊断

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929408

M. Rizk, M.Y. Yacout

引用次数: 1

Edge preserving filtering by combining CBAE and median filter for image enhancement 结合CBAE和中值滤波进行边缘保持滤波，增强图像

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929237

H. M. Ibrahim, R. Gharieb, A. H. Ibrahim

引用次数: 1

Hybrid DS/SFH-SSMA over mobile satellite log-normal shadowing channels 移动卫星对数正常阴影信道上的混合DS/SFH-SSMA

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929402

M. A. El-Dahab, M. Fouad, A. El Monem Muktar

引用次数: 0

Macromodel circuit for BiCMOS second generation current conveyor (CCII) 第二代BiCMOS电流输送器(CCII)的宏模型电路

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929414

M. Yakout, A. AbdelFattah, A.S. Elbazz

引用次数: 8

Performance analysis of slotted NP-ISMA spread spectrum with path diversity in a land mobile satellite channel 陆地移动卫星信道中带路径分集的开槽NP-ISMA扩频性能分析

Proceedings of the Eighteenth National Radio Science Conference. NRSC'2001 (IEEE Cat. No.01EX462) Pub Date : 2001-03-27 DOI: 10.1109/NRSC.2001.929238

A. Salama, R. E. Zanfally, A. Ammar

引用次数: 0