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浏览/检索结果: 共71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 Vertical transfer of microplastics in nearshore water by cultured filter-feeding oysters 期刊论文  OAI收割 JOURNAL OF HAZARDOUS MATERIALS, 2024, 卷号: 475, 页码: 13 作者:  Li, Jiasen;  Liu, Jialin;  Wang, Xiaodan;  Zhang, Tianyu;  Wang, Dongyu   |  收藏  |  浏览/下载：120/0  |  提交时间：2024/10/24 Plastic pollution  Vertical flux  Aquaculture  Infrared chemical imaging system  Sediments   Optical alignment technology for 1-meter accurate infrared magnetic system telescope 期刊论文  OAI收割 Journal of Astronomical Telescopes, Instruments, and Systems, 2024, 卷号: 10, 期号: 1 作者:  Fu, Xing;  Lei, Yu;  Li, Hua;  Kewei, E.;  Wang, Peng   |  收藏  |  浏览/下载：10/0  |  提交时间：2024/07/22 accurate infrared magnetic system  computer-aided alignment  computer-aided alignment  hexapod   Analysis and Design of Infrared Search and Track System with Afocal Zoom Telescope 期刊论文  OAI收割 APPLIED SCIENCES-BASEL, 2023, 卷号: 13, 期号: 24 作者:  Qu, Rui;  Zhang, Hongwei;  Yang, Lei;  Chen, Weining   |  收藏  |  浏览/下载：13/0  |  提交时间：2024/02/23 infrared search and track  lens design  optical system  optoelectronic system   Simultaneous detection of multi-component greenhouse gases based on an all-fibered near-infrared single-channel frequency-division multiplexing wavelength-modulated laser heterodyne radiometer 期刊论文  OAI收割 SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2023, 卷号: 293 作者:  Sun, Chunyan;  He, Xinyu;  Zhang, Ke;  Bai, Jin;  Liu, Xinshuang   |  收藏  |  浏览/下载：24/0  |  提交时间：2023/07/05 Laser heterodyne radiometer  Frequency-division multiplexing  Wavelength-modulated system  Near-infrared detection   Optimal design of middle-wavelength infrared dual field-of-view optical system 会议论文  OAI收割 Sydney, NSW, Australia, 2023-06-01 作者:  Peipei, Yan;  Huaili, Zhang;  Kai, Liu;  Kai, Jiang;  Jing, Duan   |  收藏  |  浏览/下载：134/0  |  提交时间：2023/12/26 Optical system design  infrared optical system  dual field-of-view  image performance analysis   An embedded system for short wave infrared image enhancement and 3G-SDI display 会议论文  OAI收割 Taian, PEOPLES R CHINA, 2022-05-20 作者:  Zhang, Xin;  Liu, Hui;  Li, Xiangwei   |  收藏  |  浏览/下载：34/0  |  提交时间：2022/11/07 embedded system  short wave infrared camera  adaptive  image enhancement  3G-SDI   Infrared-Light-Responsive Controlled-Release Pesticide Using Hollow Carbon Microspheres@Polyethylene Glycol/alpha-Cyclodextrin Gel 期刊论文  OAI收割 JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2021, 卷号: 69 作者:  Liu, Bin;  Zhang, Jia;  Chen, Chaowen;  Wang, Dongfang;  Tian, Geng   |  收藏  |  浏览/下载：52/0  |  提交时间：2021/08/31 infrared light  pesticide delivery system  hollow carbon microspheres  polyethylene glycol  alpha-cyclodextrin  imidacloprid   Design of a catadioptric system for infrared star sensor with wide field of view 会议论文  OAI收割 Beijing, China, 2021-06-20 作者:  Yan, Haoyu;  Wang, Hu;  Xue, Yaoke;  Ma, Zehua   |  收藏  |  浏览/下载：24/0  |  提交时间：2022/01/30 Optical design  Infrared optical system  Star sensor  Catadioptric  Low air pressure  Wide spectrum   Y Design of concentric multiscale optical system for long-wave infrared band 会议论文  OAI收割 Xiamen, PEOPLES R CHINA, 2020-08-25 作者:  Shen, Yang;  Wang, Hu;  Xue, Yaoke;  Liu, Meiying;  Jie, Yongjie   |  收藏  |  浏览/下载：26/0  |  提交时间：2021/06/04 Optical system design  concentric multiscale system  long-wave infrared band  retracted optical system   Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR 期刊论文  OAI收割 The Astrophysical Journal, 2020, 卷号: 901, 页码: L7 作者:  HXMT   |  收藏  |  浏览/下载：23/0  |  提交时间：2022/02/08 Radio transient sources  Magnetars  Soft gamma-ray repeaters  2008  992  1471  Astrophysics - High Energy Astrophysical Phenomena  Astrophysics - Instrumentation and Methods for Astrophysics  Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of AJ = 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 1014 Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to RNIR ? 0.025 (fluence index ?0.35).