中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共46条,第1-10条 帮助

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Study on the characteristics and scenario simulation of land use change in the Chaohu Lake Basin, China 期刊论文  OAI收割
ENVIRONMENTAL RESEARCH COMMUNICATIONS, 2024, 卷号: 6, 期号: 9, 页码: 95011
作者:  
Ruan, Yunfeng;  Jiao, Chunyu;  Duan, Yashu
  |  收藏  |  浏览/下载:8/0  |  提交时间:2024/10/21
Exploring the environmental risks and seasonal variations of potentially toxic elements (PTEs) in fine road dust in resource-based cities based on Monte Carlo simulation, geo-detector and random forest model 期刊论文  OAI收割
JOURNAL OF HAZARDOUS MATERIALS, 2024, 卷号: 473, 页码: 134708
作者:  
Yang, Yufan;  Lu, Xinwei;  Yu, Bo;  Wang, Zhenze;  Wang, Lingqing
  |  收藏  |  浏览/下载:13/0  |  提交时间:2024/07/12
Source-specific risk judgement and environmental impact of potentially toxic elements in fine road dust from an integrated industrial city, North China 期刊论文  OAI收割
JOURNAL OF HAZARDOUS MATERIALS, 2023, 卷号: 458, 页码: 131982
作者:  
Yang, Yufan;  Lu, Xinwei;  Yu, Bo;  Zuo, Ling;  Wang, Lingqing
  |  收藏  |  浏览/下载:31/0  |  提交时间:2023/09/07
Spatiotemporal distribution characteristics of potentially toxic elements in agricultural soils across China and associated health risks and driving mechanism 期刊论文  OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2023, 卷号: 887, 页码: 163897
作者:  
Guo, Guanghui;  Chen, Shiqi;  Lei, Mei;  Wang, Lingqing;  Yang, Jun
  |  收藏  |  浏览/下载:22/0  |  提交时间:2023/07/14
Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment 期刊论文  OAI收割
Journal of Instrumentation, 2022, 卷号: 17, 期号: 9, 页码: P09024
作者:  
Li, Ruhui;  Cao, Guofu;  Cao, Jun;  Li, Yichen;  Wang, Yifang
  |  收藏  |  浏览/下载:20/0  |  提交时间:2023/11/10
Detector optimization to reduce the cosmogenic neutron backgrounds in the TAO experiment 期刊论文  OAI收割
JOURNAL OF INSTRUMENTATION, 2022, 卷号: 17, 期号: 9
作者:  
Li, RH;  Cao, GF;  Cao, J;  Li, YC;  Wang, YF
  |  收藏  |  浏览/下载:26/0  |  提交时间:2023/03/27
Comparison of simulated backgrounds with in-orbit observations for HE, ME, and LE onboard Insight-HXMT 期刊论文  OAI收割
Astrophysics and Space Science, 2020, 卷号: 365, 页码: 158
作者:  
HXMT
  |  收藏  |  浏览/下载:49/0  |  提交时间:2022/02/08
Insight-HXMT  Geant4 simulation  Background observation  Astrophysics  - Instrumentation and Methods for Astrophysics  Abstract: Insight-HXMT, the first X-ray astronomical satellite in China, aims to reveal new sources in the Galaxy and to study fundamental physics of X-ray binaries from 1 to 250 keV. It has three collimated telescopes, the High Energy X-ray telescope (HE), the Medium Energy X-ray telescope (ME), and the Low Energy X-ray telescope (LE). Before the launch, in-orbit backgrounds of these three telescopes had been estimated through Geant4 simulation, in order to investigate the instrument performance and the achievement of scientific goals. In this work, these simulated backgrounds are compared with in-orbit observations. Good agreements are shown for all three telescopes. For HE, (1) the deviation of the simulated background rate after two years of operation in space is 5 % from the observation  (2) the total background spectrum and the relative abundance of the 67 keV line show long-term increases both in simulations and observations. For ME, (1) the deviation of simulated background rate is within 15 % from the observation, and (2) there are no obvious long-term increase features in the background spectra of simulations and observations. For LE, the background level given by simulations is also consistent with observations. The consistencies of these comparisons validate that the Insight-HXMT mass model, i.e., space environment components and models adopted, physics processes selected, and detector constructions built, is reasonable. However, the line features at 7.5 and 8.0 keV, which are obvious in the observed spectra of LE, are not evident in simulations. This might result from uncertainties in the LE constructions.  
A semi-analytical energy response model for low-energy events in JUNO 期刊论文  OAI收割
JOURNAL OF INSTRUMENTATION, 2020, 卷号: 15, 期号: 10
作者:  
Kampmann, P.;  Cheng, Y.;  Ludhova, L.
  |  收藏  |  浏览/下载:9/0  |  提交时间:2023/03/16
Silicon detector array for radioactive beam experiments at HIRFL-RIBLL 期刊论文  OAI收割
NUCLEAR SCIENCE AND TECHNIQUES, 2018, 卷号: 29
作者:  
Duan, Fang-Fang;  Yang, Yan-Yun;  Hu, Bi-Tao;  Wang, Jian-Song;  Gao, Zhi-Hao
  |  收藏  |  浏览/下载:70/0  |  提交时间:2019/03/27
Particle flow oriented electromagnetic calorimeter optimization for the circular electron positron collider 期刊论文  iSwitch采集
Journal of instrumentation, 2018, 卷号: 13, 页码: 14
作者:  
Zhao, H.;  Fu, C.;  Yu, D.;  Wang, Z.;  Hu, T.
收藏  |  浏览/下载:57/0  |  提交时间:2019/04/23