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FAR-FIELD: 作品数：121被引量：288H指数：8; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：郭超宋建国李俊营鲁凯满开峰更多>>; 相关机构：清华大学中南大学中国石油大学（华东）中国石油更多>>; 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高等学校学科创新引智计划国家教育部博士点基金更多>>

Merging and separation of polarization singularities in complex lattices: 《Chinese Physics B》2025年第3期512-519,共8页Mengyao Wang Tian Shi Luhui Ning Peng Liu Liangsheng Li Ning Zheng; Project supported by the National Natural Science Foundation of China(Grant No.12374205)。; The evolution in momentum space of bound states in the continuum(BICs)and circularly polarized states(CPSs)—as far-field polarization singularities—can be observed by controlling the geometric parameters of photonic...; 关键词：bound states in the continuum circularly polarized states topological charge far-field polarization photonic crystals

Multiplexing near-and far-field functionalities with high-efficiency bi-channel metasurfaces: 《PhotoniX》2024年第1期532-546,共15页Changhong Dai Tong Liu Dongyi Wang Lei Zhou; funded by National Key Research and Development Program of China(Grant No.2022YFA1404701);National Natural Science Foundation of China(Grant Nos.12221004,62192771);Natural Science Foundation of Shanghai(Grant No.23dz2260100).; Propagating waves and surface waves are two distinct types of light-transporting modes,the free control of which are both highly desired in integration photonics.However,previously realized devices are bulky in sizes,...; 关键词：Bi-channel metasurfaces Near-field(NF)channels Far-field(FF)channels Integration photonics Structural-resonance Geometric phase Optical vortice Surface plasmon polariton HOLOGRAM

Hybrid near- and far-field three-stage beam training with beam split for RIS-assisted OFDM communications: 《Frontiers of Information Technology & Electronic Engineering》2024年第12期1664-1678,共15页Zhichao CHENG Shupei ZHANG Shu FU Boya DI; Project supported by the Natural Science Foundation of Beijing Municipality,China(Nos.QY23039,4222005,and L212027);the National Natural Science Foundation of China(Nos.62322101,62227809,and 62271012)。; With the development of millimeter-wave(mmWave)communication systems,large-scale reconfigurable intelligent surfaces(RISs)have gained considerable attention as a promising technology for signal strength enhancement an...; 关键词：Near-far field Beam split Codebook design Beam training Reconfigurable intelligent surfaces

Far-Field Behavior of Supercritical CO_(2)Being Dispersed Due to Leakage from Pipelines: 《Fluid Dynamics & Materials Processing》2024年第12期2867-2885,共19页Yanbo Shao Xuewen Cao Wei You Shan Zhao Zilong Nan Jiang Bian; supported by the Postdoctoral Applied Research Project of Qingdao(Grant No.qdyy20210020).; Transporting massive quantities of carbon dioxide through a pipeline in its supercritical state is extremely convenient.Because of the unique properties of supercritical carbon dioxide,however,leakage occurring in suc...; 关键词：Supercritical carbon dioxide LEAKAGE DISPERSION PIPELINE

Experimental demonstration of a silicon nanophotonic antenna for far-field broadened optical phased arrays: 《Photonics Research》2024年第9期1954-1961,共8页SHAHRZAD KHAJAVI JIANHAO ZHANG PAVEL CHEBEN DANIELE MELATI JENS H.SCHMID ROSS CHERITON MARTIN VACHON SHURUI WANG AHMAD ATIEH CARLOS ALONSO RAMOS WINNIE N.YE; National Research Council Canada((CSTIP),(HTSN 624);Technology and Innovation Program);Natural Sciences and Engineering Research Council of Canada.; Optical antennas play a pivotal role in interfacing integrated photonic circuits with free-space systems.Designing antennas for optical phased arrays ideally requires achieving compact antenna apertures,wide radiation...; 关键词：ANTENNA optical ARRAYS

Precise mode control of mid-infrared high-power laser diodes using on-chip advanced sawtooth waveguide designs: 《High Power Laser Science and Engineering》2024年第4期41-47,共7页Jianmei Shi Chengao Yang Yihang Chen Tianfang Wang Hongguang Yu Juntian Cao Zhengqi Geng Zhiyuan Wang Haoran Wen Hao Tan Yu Zhang Dongwei Jiang Donghai Wu Yingqiang Xu Haiqiao Ni Zhichuan Niu; supported by the National Natural Science Foundation of China(Grant No.62204238);the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0300801);‘Announce the list and take charge’of the Major Special Plan of Science and Technology in Shanxi Province(Grant No.202201030201009);the National Key R&D Program of China(Grant No.2019YFA0705203)。; Power scaling in conventional broad-area(BA)lasers often leads to the operation of higher-order lateral modes,resulting in a multiple-lobe far-field profile with large divergence.Here,we report an advanced sawtooth wa...; 关键词：antimonide semiconductor lasers FAR-FIELD mode control

Blast waveform tailoring using controlled venting in blast simulators and shock tubes: 《Defence Technology（防务技术）》2024年第7期14-26,共13页Edward Chern Jinn Gan Alex Remennikov David Ritzel; funded partially by the Australian Government through the Australian Research Council’s Linkage Infrastructure,Equipment and Facilities (LIEF)funding scheme (LE130100133)。; A critical challenge of any blast simulation facility is in producing the widest possible pressure-impulse range for matching against equivalent high-explosive events.Shock tubes and blast simulators are often constra...; 关键词：Advanced blast simulator Shock wave propagation Far-field explosion Blast loads Blast waves Computational fluid dynamics

Rockburst proneness considering energy characteristics and sample shape effects: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第7期2441-2465,共25页Song Luo Fengqiang Gong Kang Peng Zhixiang Liu; supported by the National Natural Science Foundation of China(Grant Nos.41877272 and 42077244);the National Key Research and Development Program of China e 2023 Key Special Project(Grant No.2023YFC2907400).; Accurate prediction of rockburst proneness is one of challenges for assessing the rockburst risk and selecting effective control measures.This study aims to assess rockburst proneness by considering the energy charact...; 关键词：Rockburst proneness Sample shape Strain energy Energy release Far-field ejection mass ratio(FEMR)

Localization for mixed near-field and far-field sources under impulsive noise: 《Journal of Systems Engineering and Electronics》2024年第2期302-315,共14页GAO Hongyuan ZHANG Yuze DU Ya’nan CHENG Jianhua CHEN Menghan; supported by the National Natural Science Foundation of China(62073093);the initiation fund for postdoctoral research in Heilongjiang Province(LBH-Q19098);the Natural Science Foundation of Heilongjiang Province(LH2020F017).; In order to solve the problem that the performance of traditional localization methods for mixed near-field sources(NFSs)and far-field sources(FFSs)degrades under impulsive noise,a robust and novel localization method...; 关键词：source localization far-field source(NFS) near-field source(FFS) impulsive noise Cramer-Rao bound(CRB)

Finite domain solution of a KGD hydraulic fracture in the viscosity-dominated regime: 《Rock Mechanics Bulletin》2024年第1期55-63,共9页Cexuan Liu Emmanuel Detournay Fengshou Zhang; support from the International Exchange Program for Graduate Students,Tongji University(NO.2023020010).; This paper describes a numerical algorithm for solving the classic problem of a plane strain(KGD)fracture propagating in an impermeable elastic medium with zero toughness.The method,which takes advantage of the self-s...; 关键词：Hydraulic fracturing Numerical simulation Domain-based method Far-field asymptotic boundary Tip asymptote

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