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REFLECTORS: 作品数：47被引量：82H指数：5; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：李再华周卓孔军更多>>; 相关机构：国家拖拉机质量监督检验中心机械工业农用运输车发展研究中心武汉理工大学上海干巷汽车镜(集团)有限公司更多>>; 相关期刊：《Science China Earth Sciences》《Optoelectronics Letters》《Journal of Ocean University of China》《The Journal of China Universities of Posts and Telecommunications》更多>>; 相关基金：国家自然科学基金国家高技术研究发展计划北京市自然科学基金天津市自然科学基金更多>>

Switchable Electromagnetic Absorber/Reflectors Using Back-Loaded Active Radio Frequency Circuits被引量：1: 《Electromagnetic Science》2023年第4期51-60,共10页Bing Wang Wen Wu Zhi-Yuan Zong Guoxiao Cheng Song-Zhao Zhou Da-Gang Fang; supported by the National Natural Science Foundation of China(Grant No.62101262)and the National Natural Science Foundation of China(Grant No.62104109).; In this paper,three switchable electromagnetic absorbers/reflectors using back-loaded active radio frequency circuits are presented.In the first design,the incident waves are received by an antenna array,transmitted t...; 关键词：Switchable absorber/reflectors Antenna array Active circuit Angular stability Switching chips

Capacity Analysis of an MISO Free-Space Optical Communications Assisted by Concave ORIS: 《Journal of Communications and Information Networks》2023年第3期295-302,共8页Frank Nonso Igboamalu Alain Richard Ndjiongue Khmaies Ouahada; This paper explores the ergodic channel capacity of multiple-input single-output(MISO)free-space optical(FSO)communication systems,assisted by(optical)re-configurable intelligent surfaces[(O)RIS],made of concave refle...; 关键词：ORIS concave reflectors MISO FSO communication systems ergodic channel capacity

Frequency-,radiation pattern-and polarization-reconfigurable antenna for wireless applications: 《The Journal of China Universities of Posts and Telecommunications》2023年第1期87-92,共6页Bai Xia Su Ming Wang Qingmin Liu Yang Gao Zhiwei; supported by the Project of Hebei Key Laboratory of Electromagnetic Environmental Effects and Information Processing(20210004,20210012)。; In this communication,a frequency-,radiation pattern-and polarization-reconfigurable antenna employing liquid metal is presented.Two crossed dipole antennas are surrounded by four independent reflectors and directors ...; 关键词：RECONFIGURABLE antenna liquid metal CROSSED DIPOLES REFLECTORS COMPOUND RECONFIGURATION

Unclonable human-invisible machine vision markers leveraging the omnidirectional chiral Bragg diffraction of cholesteric spherical reflectors: 《Light(Science & Applications)》2022年第11期2583-2601,共19页Hakam Agha Yong Geng Xu Ma Deniz IsInsu Avsar Rijeesh Kizhakidathazhath Yan-Song Zhang Ali Tourani Hriday Bavle Jose-Luis Sanchez-Lopez Holger Voos Mathew Schwartzo Jan P.F.Lagerwall; the Luxembourg National Research Fund(FNR),grant reference C20_MS_14771094(ECLIPSE);For the purpose of open access,the author has applied a Creative Commons Atribution 4.0 International(CC BY 4.0)license to any Author Accepted Manuscript version arising from this submission.Further financial support is gratefully acknowledged from the Office of Naval Research Global(Project LAB'RINTH);the Institute of Advanced Studies of the University of Luxembourg(project TRANSCEND);the European Research Council(ERC,Proof-of-C oncept project VALIDATE,Grant Code 862315).; The seemingly simple step of molding a cholesteric liquid crystal into spherical shape,yielding a Cholesteric Spherical Reflector(CSR),has profound optical consequences that open a range of opportunities for potential...; 关键词：SPHERICAL STERIC CHIRAL

Penumbra lunar eclipse observations reveal anomalous thermal performance of Lunakhod 2 reflectors: 《Chinese Physics B》2022年第5期212-218,共7页Tian-Quan Gao Cai-Shi Zhang Hong-Chao Zhao Li-Xiang Zhou Xian-Lin Wu Hsienchi Yeh Ming Li; Project supported by the National Natural Science Foundation of China(Grant No.12033009)。; As the signal reflected by the corner-cube reflector arrays is very weak and easily submerged during the full moon,we analyze the influence of the thermal effect of corner-cube reflector arrays on the intensity of lun...; 关键词：lunar laser ranging corner-cube reflector arrays dihedral angle errors penumbra lunar eclipse

Photoacoustic/ultrasound dual modality imaging aided by acoustic reflectors: 《Chinese Optics Letters》2021年第12期81-84,共4页Guangjie Zhang Yu Sun Xing Long Rui Zhang Meng Yang Changhui Li; supported by the National Key Research and Development Program(Nos.2017YFE0104200 and2017YFC0907604);the National Natural Science Foundation of China(Nos.81421004 and 81301268);the National Key Instrumentation Development Project(No.2013YQ030651);the Beijing Natural Science Foundation(No.JQ18023);Beijing Nova Program Interdisciplinary Cooperation Project(No.xxjc201812);International S&T Cooperation Program of China(No.2015DFA30440)。; Photoacoustic imaging(PAI)with a handheld linear ultrasound(US) probe is widely used owing to its convenient and inherent dual modality capability.However,the limited length of the linear probe makes PAI suffer from t...; 关键词：photoacoustic imaging limited view multimodal imaging

Damage characteristics of dual-band high reflectors affected by nodule defects in the femtosecond regime被引量：2: 《Chinese Optics Letters》2021年第8期23-27,共5页Bin Ma Jiaqi Han Jing Li Ke Wang Shuang Guan Xinshang Niu Haoran Li Jinlong Zhang Hongfei Jiao Xinbin Cheng Zhanshan Wang; supported by the National Natural Science Foundation of China(Nos.61675156 and 61975153)。; The influence of nodule defects on the characteristics of femtosecond laser-induced damage has not been fully investigated.In this study,two types of 800 nm/1064 nm dual-band HfO_(2)=Si O_(2) high-reflection films wit...; 关键词：femtosecond laser damage nodule defects dual-band high reflectors

Geological Interpretation and Hydrocarbon Exploration Potential of Three Types of Mound-shaped Reflectors in the Meishan Formation,Southern Qiongdongnan Basin: 《Acta Geologica Sinica(English Edition)》2021年第1期167-176,共10页FENG Yangwei REN Yan LI Zengxue JIN Li; funded by the National Natural Science Foundation of China(41872172,42072188);Jiangxi Provincial Natural Science Foundation(20202BABL211019);Open Fund Project of the Key Laboratory of Sedimentary Mineralization and Sedimentary Mineral Resources in Shandong Province(DMSM 2019008)。; Many mound-shaped reflectors with different features and shapes are evident in the Upper Member of the Meishan Formation from seismic profiles taken in the deep-water area of the Southern Qiongdongnan Basin.Based on t...; 关键词：deep-water area mound-shaped reflectors REEF contourite mound accumulation assemblage

Laser back scatter: Limitation to higher repetition rate [kHz] Satellite Laser Ranging system: 《Geodesy and Geodynamics》2021年第1期48-53,共6页Farhat Iqbal G.Kirchner F.Koidl Erich Leitgeb; the Austrian Academy of Science for providing a placement and Higher education commission of Pakistan to fund this study; Satellite laser ranging(SLR)with higher repetition rate is the recent trend for its various advantages.Laser backscatter(coincidence between recently transmitted pulses and received pulses near the detector)is found t...; 关键词：Satellite laser ranging Higher repetition rate Noise Retro reflectors

BUILDING INTERIOR TUBES AND NONIMAGING REFLECTORS(BITNR)STUDIES: 《Journal of Green Building》2020年第2期213-248,共36页Joel H.Goodman; Building Interior Tubes and Nonimaging Reflectors(BITNR)solar thermal concentrators for mid-temperature applications in snow and dust regions,previously titled BIETR now include non-evacuated tube-receivers.A nonpubli...; 关键词：architectural mid-temperature concentrators building interior big CPCs building interior receiver-tubes Helmholz‘wings’tracker BITNR student engineering projects

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