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浏览/检索结果: 共55条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择发表日期升序发表日期降序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 Effects of functional microorganisms and environmental factors on CO2 and CH4 emissions in a typical floodplain lake system 期刊论文  OAI收割 JOURNAL OF ENVIRONMENTAL SCIENCES, 2026, 卷号: 159, 页码: 312-321 作者:  Li, Jiajia;  Wu, Fan;  Ha, Xianrui;  Gao, Yang   |  收藏  |  浏览/下载：4/0  |  提交时间：2025/12/19 Carbon emission  Flux  Methanogens  Methane oxidizers  Carbon cycle  Poyang Lake   Determining whether hydrological processes drive carbon source and sink conversion shifts in a large floodplain-lake system in China 期刊论文  OAI收割 WATER RESEARCH, 2022, 卷号: 224, 页码: 12 作者:  Wang, Shuoyue   |  收藏  |  浏览/下载：76/0  |  提交时间：2022/11/09 Partial pressure of carbon dioxide  Water -air carbon exchange flux  Carbon dioxide emission  Carbon source  Carbon sink  Hydrological process   Determining whether hydrological processes drive carbon source and sink conversion shifts in a large floodplain-lake system in China 期刊论文  OAI收割 WATER RESEARCH, 2022, 卷号: 224, 页码: 12 作者:  Wang, Shuoyue;  Gao, Yang;  Jia, Junjie;  Lu, Yao;  Wang, Jing   |  收藏  |  浏览/下载：52/0  |  提交时间：2022/11/09 Partial pressure of carbon dioxide  Water -air carbon exchange flux  Carbon dioxide emission  Carbon source  Carbon sink  Hydrological process   Ultra-wide Bandwidth Observations of 19 Pulsars with Parkes Telescope 期刊论文  OAI收割 Research in Astronomy and Astrophysics, 2022, 卷号: 22, 期号: 8, 页码: 85001 作者:  Zhou, Zu-Rong;  Wang, Jing-Bo;  Wang, Na;  Hobbs, George;  Wang, Shuang-Qiang   |  收藏  |  浏览/下载：47/0  |  提交时间：2023/06/19 (stars:) pulsars: general  stars: neutron  methods: data analysis  flux-density measurements  polarization  discovery  spectra  polarimetry  profiles  emission  Astronomy & Astrophysics   Hydrological seasonality and nutrient stoichiometry control dissolved organic matter characterization in a headwater stream 期刊论文  OAI收割 SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 卷号: 807, 页码: 10 作者:  Li, Siyue;  Luo, Jiachen;  Xu, Y. Jun;  Zhang, Liuqing;  Ye, Chen   |  收藏  |  浏览/下载：112/0  |  提交时间：2021/12/23 Dissolved organic carbon  Allochthonous and autochthonous DOM  Headwater carbon flux  Excitation emission matrix fluorescence  Anthropogenic inputs  Stoichiometric ratios   Evidence for Strong HONO Emission from Fertilized Agricultural Fields and its Remarkable Impact on Regional O-3 Pollution in the Summer North China Plain 期刊论文  OAI收割 ACS EARTH AND SPACE CHEMISTRY, 2021, 卷号: 5, 期号: 2, 页码: 340-347 作者:  Xue, Chaoyang;  Ye, Can;  Zhang, Chenglong;  Catoire, Valery;  Liu, Pengfei   |  收藏  |  浏览/下载：52/0  |  提交时间：2021/12/22 HONO  nitrogen fertilization  agricultural fields  emission flux  O-3   Study of the Urban NO2 Distribution and Emission Assessment Based on Mobile MAX-DOAS Observations 期刊论文  OAI收割 SPECTROSCOPY AND SPECTRAL ANALYSIS, 2021, 卷号: 41 作者:  Liu Hao-ran   |  收藏  |  浏览/下载：38/0  |  提交时间：2021/04/26 Mobile MAX-DOAS  NO2  Distribution  Emission flux   Detection of Flare Multiperiodic Pulsations in Mid-ultraviolet Balmer Continuum, Lyl Hard X-Ray, and Radio Emissions Simultaneously 期刊论文  OAI收割 The Astrophysical Journal, 2021, 卷号: 921, 页码: 179 作者:  HXMT   |  收藏  |  浏览/下载：54/0  |  提交时间：2022/02/08 Solar flares  Solar oscillations  Solar ultraviolet emission  Solar  x-ray emission  Solar radio emission  1496  1515  1533  1536  1522  Astrophysics - Solar and Stellar Astrophysics  Abstract: Quasi-periodic pulsations (QPPs), which usually appear as temporal pulsations of the total flux, are frequently detected in the light curves of solar/stellar flares. In this study, we present the investigation of nonstationary QPPs with multiple periods during the impulsive phase of a powerful flare on 2017 September 6, which were simultaneously measured by the Hard X-ray Modulation Telescope (Insight-HXMT), as well as the ground-based BLENSW. The multiple periods, detected by applying a wavelet transform and Lomb-Scargle periodogram to the detrended light curves, are found to be ~20-55 s in the Ly`and mid-ultraviolet Balmer continuum emissions during the flare impulsive phase. Similar QPPs with multiple periods are also found in the hard X-ray emission and low-frequency radio emission. Our observations suggest that the flare QPPs could be related to nonthermal electrons accelerated by the repeated energy release process, i.e., triggering of repetitive magnetic reconnection, while the multiple periods might be modulated by the sausage oscillation of hot plasma loops. For the multiperiodic pulsations, other generation mechanisms could not be completely ruled out.   NOx Emission Flux Measurements with Multiple Mobile-DOAS Instruments in Beijing 期刊论文  OAI收割 REMOTE SENSING, 2020, 卷号: 12 作者:  Huang, Yeyuan;  Li, Ang;  Xie, Pinhua;  Hu, Zhaokun;  Xu, Jin   |  收藏  |  浏览/下载：90/0  |  提交时间：2020/10/27 NOX  emission flux  mobile-DOAS  mega-city   Carbon and nutrients as indictors of daily fluctuations of pCO(2) and CO2 flux in a river draining a rapidly urbanizing area 期刊论文  OAI收割 ECOLOGICAL INDICATORS, 2020, 卷号: 109, 页码: 14 作者:  Li, Siyue;  Luo, Jiachen;  Wu, Daishe;  Xu, Y. Jun   |  收藏  |  浏览/下载：58/0  |  提交时间：2020/08/24 River CO2 emission  Carbon flux  Carbon cycling  Human activities  Eutrophication  Dissolved organic carbon