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浏览/检索结果: 共34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 Integrated drought vulnerability and risk assessment for future scenarios: An indicator based analysis 期刊论文  OAI收割 SCIENCE OF THE TOTAL ENVIRONMENT, 2023, 卷号: 900, 页码: 14 作者:  Wang, Tingting;  Sun, Fubao   |  收藏  |  浏览/下载：31/0  |  提交时间：2023/10/09 Drought risk  Drought vulnerability index  Drought hazard  Population  Climate change   Multifaceted characteristics of summer heat and affected population across China under climate change 期刊论文  OAI收割 CLIMATE DYNAMICS, 2023, 页码: 15 作者:  Feng, Yao;  Liu, Wenbin;  Wang, Hong;  Liu, Fa;  Sun, Fubao   |  收藏  |  浏览/下载：53/0  |  提交时间：2023/02/27 Heat index  Heat stress  Heat events  Affected population  China   Multifaceted characteristics of summer heat and affected population across China under climate change 期刊论文  OAI收割 CLIMATE DYNAMICS, 2023, 页码: 15 作者:  Feng, Yao;  Liu, Wenbin;  Wang, Hong;  Liu, Fa;  Sun, Fubao   |  收藏  |  浏览/下载：29/0  |  提交时间：2023/02/27 Heat index  Heat stress  Heat events  Affected population  China   Exploring the urban-rural development differences and influencing factors in the Huang-Huai-Hai Plain of China 期刊论文  OAI收割 JOURNAL OF GEOGRAPHICAL SCIENCES, 2020, 卷号: 30, 期号: 10, 页码: 1603-1616 作者:  Cheng Mingyang;  Li Linna;  Zhou Yang   |  收藏  |  浏览/下载：30/0  |  提交时间：2021/03/15 urban-rural difference index (URDI)  population-land-industry  urban-rural relationship  rural revitalization  Huang-Huai-Hai Plain (HHHP)  China   Exploring the urban-rural development differences and influencing factors in the Huang-Huai-Hai Plain of China 期刊论文  OAI收割 JOURNAL OF GEOGRAPHICAL SCIENCES, 2020, 卷号: 30, 期号: 10, 页码: 1603-1616 作者:  Cheng Mingyang;  Li Linna;  Zhou Yang   |  收藏  |  浏览/下载：21/0  |  提交时间：2021/03/15 urban-rural difference index (URDI)  population-land-industry  urban-rural relationship  rural revitalization  Huang-Huai-Hai Plain (HHHP)  China   基于多源数据的中国海岸带地区人口空间化模拟 期刊论文  OAI收割 地球信息科学学报, 2020, 卷号: 22, 期号: 2, 页码: 207-217 作者:  杜培培;  侯西勇   |  收藏  |  浏览/下载：62/0  |  提交时间：2020/07/08 人口  阈值  动态分区  空间化  人居指数  海岸带  中国  Population  Threshold  Dynamic Partitioning  Spatialization  Human Settlements Index  Coastal Zone  China   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：33/0  |  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).   Glen Canyon Dam Operation Effects on Rainbow Trout Habitat and Population Status 期刊论文  OAI收割 POLISH JOURNAL OF ENVIRONMENTAL STUDIES, 2018, 卷号: 27, 期号: 1, 页码: 413-419 作者:  Yao, Weiwei;  Chen, Yuansheng;  He, Xinlin   |  收藏  |  浏览/下载：29/0  |  提交时间：2019/09/25 habitat and population model  rainbow trout population  habitat suitability index  dam operation   Glen Canyon Dam Operation Effects on Rainbow Trout Habitat and Population Status 期刊论文  OAI收割 POLISH JOURNAL OF ENVIRONMENTAL STUDIES, 2018, 卷号: 27, 期号: 1, 页码: 413-419 作者:  Yao, Weiwei;  Chen, Yuansheng;  He, Xinlin   |  收藏  |  浏览/下载：23/0  |  提交时间：2019/09/25 habitat and population model  rainbow trout population  habitat suitability index  dam operation   Glen Canyon Dam Operation Effects on Rainbow Trout Habitat and Population Status 期刊论文  OAI收割 POLISH JOURNAL OF ENVIRONMENTAL STUDIES, 2018, 卷号: 27, 期号: 1, 页码: 413-419 作者:  Yao, Weiwei;  Chen, Yuansheng;  He, Xinlin   |  收藏  |  浏览/下载：30/0  |  提交时间：2019/09/25 habitat and population model  rainbow trout population  habitat suitability index  dam operation