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APERTURE: 作品数：353被引量：707H指数：10; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：张婷宋跃明刘立岷张杰吴泉英更多>>; 相关机构：中国科学院电子学研究所国家海洋局第一海洋研究所国防科学技术大学中国科学院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>

A semi-analytical model of the velocity profile for a conduit-multilayer matrix system: 《Journal of Rock Mechanics and Geotechnical Engineering》2025年第2期915-930,共16页Shuai Zhang Xiaoli Liu Enzhi Wang; financially supported by the National Natural Science Foundation of China(Grant Nos.52079068,52090081);the State Key Laboratory of Hydroscience and Engineering(Grant No.2021-KY-04).; The flow field characteristics of the conduit-matrix system(CMS)have consistently been a primary area of interest to researchers.However,under the long-term influence of water flow,the hydraulic conductivity of the ma...; 关键词：Flow field characteristics Velocity profile Conduit aperture Stress jumping Conduit-matrix system(CMS)

A Low-Profile Aperture-Shared Dual-Band Circularly Polarized Antenna Based on Fabry-Pérot Cavity and Folded Reflect Array: 《Journal of Computer and Communications》2024年第12期318-331,共14页Jiafeng Hu; This paper proposes a low-profile, aperture-shared dual-band bidirectional circularly polarized (CP) antenna. The design incorporates a partially reflective surface (PRS) and a multifunctional transmission-reflection ...; 关键词：Aperture-Shared Low-Profile Circularly Polarized DUAL-BAND Fabry-Pérot Cavity Antenna Folded Reflectarray

Effects of Sowing Date and Sowing Rate on Yield of Rice Developed from Seedlings Dry-raised in Aperture Disk: 《Agricultural Biotechnology》2024年第6期9-11,共3页Shurong XIN Feixiang WANG Wenfan BIAN xinyang LI Bin WU Jili WAN Yan SHI Linlin XU Hui MA Feng CHEN Bing GUO Yunjian SUN Zhuo XU; Supported by Key R&D Program of Shandong Province(Action Plan for Rural Revitalization,Scientific and Technological Innovation and Boosting)(2023TZXD008);Key R&D Program of Shandong Province(Agricultural Improved Variety Project)(2024LZGCQY007);Innovation Ability Promotion Project of Shandong Province(2024TSGC0841,2024TSGC0205).; [Objectives]This study was conducted to find out the best sowing date and sowing rate of rice.[Methods]Based on the technique of dry seedling raising in aperture disk,the effects of sowing date and sowing rate on rice...; 关键词：RICE Dry seedling raising Sowing date Seeding rate YIELD

Development of a novel joint-less double aperture REBCO magnet with an innovative excitation circuit for stable magnetic field generation: 《Superconductivity》2024年第4期122-133,共12页Hao Dong Daxing Huang Hao Yu Hongwei Gu Fazhu Ding; supported by the National Key R&D Program of China(No.2022YFE03150203);the National Natural Science Foundation of China(Grant No.U2032217,Grant No.52072366,and Grant No.52477031).; Second‐generation high‐temperature superconducting(2G‐HTS)magnets operating in persistent current mode(PCM)effectively address the challenge of magnetic field stability.This paper introduces a novel joint‐less dou...; 关键词：Peristent curent mode(POM) 2G-HTTS magnet JDA RERCO mgret Fxciafon dicuit

Design,fabrication and characteristics of optofluidic variable aperture based on electromagnetic-driving: 《Optoelectronics Letters》2024年第12期705-708,共4页ZHANG Anning ZHAO Rui WEI Xian LIANG Zhongcheng HAN Zefeng; supported by the National Natural Science Foundation of China(No.61775102);the Youth Program of National Natural Science Foundation of China(No.61905117)。; An electromagnetic-driving variable liquid aperture is designed and fabricated.It consists of a driving cavity,an optical cavity and a storage chamber,a polydimethylsiloxane(PDMS)elastic film,an annular magnet and a d...; 关键词：ANNULAR FILM FILLED

Dual-band and high-isolation shared-aperture antenna for broadband airborne applications: 《Journal of Electronic Science and Technology》2024年第4期9-18,共10页Yuan Zhang Dong-Jun Wang Chuan Wu Qiang-Ming Cai Run-Ren Zhang Rong-Qiang Li Peng Gao Yan-Wen Zhao; supported by the National Natural Science Foundation of China under Grants No.61801406 and No.U23A20651;in part by the Research Fund of Sichuan Provincial under Grants No.2024NSFSC0478 and No.2022YFG0259;in part by the Research Fund of Key R&D Projects in Sichuan Province under Grant No.2022-ZY00-00009-GX;in part by the Mianyang Central Guiding Local Science and Technology Development Fund Project under Grants No.2023ZYDF002 and No.2023ZYDF092.; A dual-band and high-isolation shared-aperture antenna for unmanned aerial vehicle(UAV)platforms has been proposed.This shared-aperture antenna consists of a rectangular monopole antenna and a 4-element multiple input...; 关键词：Dual-band antenna High-isolation Monopole antenna Multiple input multiple output(MIMO) Shared-aperture Unmanned aerial vehicle(UAV)

Analysing light pipe two-side aperture in dense population housing to improve the visual and thermal condition: 《Energy and Built Environment》2024年第5期787-799,共13页Tika Hanjani Ova Candra Dewi Nandy Putra; funded by the Directorate of Research and De-velopment,Universitas Indonesia under Hibah PUTI 2022 (grant no.NKB-332/UN2.RST/HKP.05.00/2022).; Daylight is one of the essential criteria for decent housing.However,in an urban kampung,access to daylight is limited due to the high-density population in urban Kampung Kota.This study aims to improve the visual and...; 关键词：DAYLIGHT Light pipe two aperture Densely populated urban kampung HOUSING Hot-humid climates

Empirical prediction of hydraulic aperture of 2D rough fractures:a systematic numerical study: 《Frontiers of Earth Science》2024年第3期579-597,共19页Xiaolin WANG Shuchen LI Richeng LIU Xinjie ZHU Minghui HU; funded by National Key R&D Program of China(No.2022YFE0128300);National Natural Science Foundation of China(Grant Nos.52379114 and 52379113);Natural Science Foundation of Jiangsu Province,China(No.BK20211584);the Assistance Program for Future Outstanding Talents of the China University of Mining and Technology(No.2023WLKXJ187);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.KYCX23_2746).; This study aims to propose an empirical prediction model of hydraulic aperture of 2D rough fractures through numerical simulations by considering the influences of fracture length,average mechanical aperture,minimum m...; 关键词：fluid flow rough fracture surface mechanical aperture hydraulic aperture predictive model

A low-profile dual-broadband dual-circularly-polarized reflectarray for K-/Ka-band space applications: 《Frontiers of Information Technology & Electronic Engineering》2024年第8期1145-1161,共17页Xuanfeng TONG Zhi Hao JIANG Yuan LI Fan WU Lin PENG Taiwei YUE Wei HONG; supported by the National Natural Science Foundation of China(Nos.62122019,62293492,and 61901106);the ZTE Corporation and the State Key Laboratory of Mobile Network and Mobile Multimedia Technology,and the Fundamental Research Funds for Central Universities,China(No.2242022k60008)。; A low-profile dual-broadband dual-circularly-polarized(dual-CP)reflectarray(RA)is proposed and demonstrated,supporting independent beamforming for right-/left-handed CP waves at both K-band and Ka-band.Such functional...; 关键词：Broadband DUAL-BAND Dual-circularly-polarized REFLECTARRAY Shared-aperture

High-resolution photogrammetry to measure physical aperture of two separated rock fracture surfaces: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第8期2922-2934,共13页Masoud Torkan Mateusz Janiszewski Lauri Uotinen Alireza Baghbanan Mikael Rinne; funding provided by the State Nuclear Waste Management Fund(VYR)and the support of the Ministry of Economic Affairs and Employment of Finland on the Finnish Research Program on Nuclear Waste Management KYT2018 and KYT2022 of the Nuclear Energy Act(990/1987)in the research projects Fluid flow in fractured hard rock mass(RAKKA),funding numbers KYT 1/2021 and KYT 1/2022;Additional support was received from the National Nuclear Safety and Waste Management Research Program SAFER2028,funding numbers SAFER 25/2023(MIRKA)and SAFER 42/2023(CORF).; Photogrammetry,reconstructing three-dimensional(3D)models from overlapping two-dimensional(2D)photos,finds application in rock mechanics and rock engineering to extract geometrical details of reconstructed objects,for...; 关键词：PHOTOGRAMMETRY Physical aperture Rock fracture Predefined distances MARKERS

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