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• OAI收割 [25]
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浏览/检索结果: 共27条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 A Multi-Target Passive Location Method Based on GDOP Value and Beam Resolution 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE, 2022, 卷号: 36, 期号: 8 作者:  Miao, Sheng;  Dong, Liang;  Wang, Xiaorui   |  收藏  |  浏览/下载：41/0  |  提交时间：2022/07/18 Sensor network  time difference of arrival  multi-target location  unsupervised clustering  narrow-band beam forming   Optimal and robust vegetation mapping in complex environments using multiple satellite imagery: Application to mangroves in Southeast Asia 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION, 2021, 卷号: 99, 页码: 13 作者:  Xiao, Han;  Su, Fenzhen;  Fu, Dongjie;  Lyne, Vincent;  Liu, Gaohuan   |  收藏  |  浏览/下载：62/0  |  提交时间：2021/06/10 Remote sensing band selection  Large-scale mapping  Mangrove mapping  Multi-source data   Optimal and robust vegetation mapping in complex environments using multiple satellite imagery: Application to mangroves in Southeast Asia 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION, 2021, 卷号: 99, 页码: 13 作者:  Xiao, Han;  Su, Fenzhen;  Fu, Dongjie;  Lyne, Vincent;  Liu, Gaohuan   |  收藏  |  浏览/下载：33/0  |  提交时间：2021/06/10 Remote sensing band selection  Large-scale mapping  Mangrove mapping  Multi-source data   A thermo-elastic-plastic phase-field model for simulating the evolution and transition of adiabatic shear band. Part I. Theory and model calibration 期刊论文  OAI收割 ENGINEERING FRACTURE MECHANICS, 2020, 卷号: 232, 页码: 12 作者:  Wang, T;  Liu, ZL;  Cui, YN;  Ye X(叶璇);  Liu XM(刘小明)   |  收藏  |  浏览/下载：41/0  |  提交时间：2020/06/22 Adiabatic shear band  Phase-field model  Fracture  Parameter calibration  Multi-field coupling   No pulsed radio emission during a bursting phase of a Galactic magnetar 期刊论文  OAI收割 Nature, 2020, 卷号: 587, 页码: 63-65 作者:  HXMT   |  收藏  |  浏览/下载：44/0  |  提交时间：2022/02/08 Astrophysics - High Energy Astrophysical Phenomena  Abstract: Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4-13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft íray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft íray/hard-X-ray flare18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-íray repeater (SGR) bursts were detected in íray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.   一种Q波段多孔耦合型定向耦合器 期刊论文  OAI收割 微波学报, 2020, 卷号: 36, 期号: 5, 页码: 74 作者:  陈卯蒸;  杨欢;  马军;  覃律;  王凯   |  收藏  |  浏览/下载：21/0  |  提交时间：2021/12/06 radio astronomy  Q-band  broadband  directional coupler  multi-hole coupling  射电天文  Q波段  宽带  定向耦合器  多孔耦合   Sono-photocatalytic production of hydrogen by interface modified metal oxide insulators 期刊论文  OAI收割 ULTRASONICS SONOCHEMISTRY, 2018, 卷号: 45, 页码: 279-285 作者:  Senevirathne, Rushdi D.;  Abeykoon, Lahiru K.;  De Silva, Nuwan L.;  Yan, Chang-Feng;  Bandara, Jayasundera   |  收藏  |  浏览/下载：32/0  |  提交时间：2020/10/29 Sono-photocatalysis  MgO  IR photon  Dielectric oxides  Sub-band gap excitations  Multi step excitations   Design and characterization for dual-band and multi-band A sandwich composite radome walls 期刊论文  OAI收割 COMPOSITES SCIENCE AND TECHNOLOGY, 2017, 卷号: 149, 页码: 28-33 作者:  Zhou, Licheng;  Wang, Peiyu;  Pei, Yongmao;  Zeng, Anmin;  Tang, Liqun 收藏  |  浏览/下载：35/0  |  提交时间：2017/11/29 Radome  Dual-band  Multi-band  Sandwich Structure  Transmission   Investigations of associated multi-band observations for GEO space debris 期刊论文  OAI收割 ADVANCES IN SPACE RESEARCH, 2017, 卷号: 59, 期号: 10, 页码: 2501-2511 作者:  Lu, Yao;  Zhang, Chen;  Sun, Rong-yu;  Zhao, Chang-yin;  Xiong, Jian-ning   |  收藏  |  浏览/下载：26/0  |  提交时间：2019/04/08 Space debris  Geostationary orbit  Multi-band observations  Photometry  Light curves   Multi-Band and Multi-Epoch Morphological Evolution and Computational Physics of PKS 0528 + 134 期刊论文  OAI收割 Journal of Computational and Theoretical Nanoscience, 2017, 卷号: 14, 期号: 2, 页码: 1101-1107 作者:  Liu, F. Y.;  Zhang, M.   |  收藏  |  浏览/下载：23/0  |  提交时间：2019/12/09 MULTI-BAND  PKS 0528 + 134  COMPUTATIONAL PHYSICS  MULTI-EPOCH MORPHOLOGICAL EVOLUTION