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浏览/检索结果: 共80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 Research on subpixel partition correction method for simulating star position in star simulation system 期刊论文  OAI收割 Journal of Instrumentation, 2023, 卷号: 18, 期号: 9 作者:  Wu, Linghao;  Wang, Jiaan;  Jia, Wentao;  Zhang, Jian;  Sun, Jingrui   |  收藏  |  浏览/下载：14/0  |  提交时间：2023/10/12 Instrumental noise  Optics  Simulation methods and programs   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：19/0  |  提交时间：2023/11/10 Neutrino detectors  Large detector systems for particle and astroparticle physics  Simulation methods and programs  Large detector-systems performance  Physics - Instrumentation and Detectors  High Energy Physics - Experiment   A comparative study on different background estimation methods for extensive air shower arrays 期刊论文  OAI收割 JOURNAL OF INSTRUMENTATION, 2022, 卷号: 17, 期号: 12, 页码: P12003 作者:  Wang, YJ;  Zha, M;  Hu, SC;  Gao, CD;  Zhang, JL   |  收藏  |  浏览/下载：12/0  |  提交时间：2023/11/10 Analysis and statistical methods  Simulation methods and programs  Cherenkov detectors   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：25/0  |  提交时间：2023/03/27 Neutrino detectors  Large detector systems for particle and astroparticle physics  Simulation methods and programs  Large detector-systems performance   A precise method to determine the energy scale and resolution using gamma calibration sources in a liquid scintillator detector 期刊论文  OAI收割 JOURNAL OF INSTRUMENTATION, 2021, 卷号: 16, 期号: 8 作者:  Zhang, F;  Li, R;  Hui, J;  Liu, J;  Meng, Y   |  收藏  |  浏览/下载：9/0  |  提交时间：2023/03/27 Radiation calculations  Simulation methods and programs   Numerical investigations of the transient cavitating vortical flow structures over a flexible NACA66 hydrofoil 期刊论文  OAI收割 JOURNAL OF HYDRODYNAMICS, 2020, 卷号: 32, 期号: 5, 页码: 865-878 作者:  Huang RF(黄仁芳);  Du TZ(杜特专);  Wang YW(王一伟);  Huang CG(黄晨光);  Du TZ(杜特专)   |  收藏  |  浏览/下载：54/0  |  提交时间：2020/12/28 Cloud cavitation  LARGE-EDDY SIMULATION  flexible hydrofoil  VORTEX IDENTIFICATION METHODS  Ω  SPECIAL EMPHASIS  method  ADDED-MASS  flow-induced vibration  OMEGA  VIBRATION  DYNAMICS   Dynamic simulation of urbanization and eco-environment coupling: Current knowledge and future prospects 期刊论文  OAI收割 JOURNAL OF GEOGRAPHICAL SCIENCES, 2020, 卷号: 30, 期号: 2, 页码: 333-352 作者:  Cui, Xuegang;  Fang, Chuanglin;  Liu, Haimeng;  Liu, Xiaofei;  Li, Yonghong   |  收藏  |  浏览/下载：18/0  |  提交时间：2020/05/19 urbanization and eco-environment coupling  dynamic simulation  theory  methods  applications   Dynamic simulation of urbanization and eco-environment coupling: Current knowledge and future prospects 期刊论文  OAI收割 JOURNAL OF GEOGRAPHICAL SCIENCES, 2020, 卷号: 30, 期号: 2, 页码: 333-352 作者:  Cui, Xuegang;  Fang, Chuanglin;  Liu, Haimeng;  Liu, Xiaofei;  Li, Yonghong   |  收藏  |  浏览/下载：21/0  |  提交时间：2020/05/19 urbanization and eco-environment coupling  dynamic simulation  theory  methods  applications   Determination of Tensile Strength by Modified Brazilian Disc Method for Nuclear Graphite 期刊论文  OAI收割 EXPERIMENTAL TECHNIQUES, 2020, 卷号: 44, 期号: 4, 页码: 475-484 作者:  Zhang, C;  Yuan, Y;  He, ZT;  Tang, H;  Song, JL   |  收藏  |  浏览/下载：45/0  |  提交时间：2021/09/06 FRACTURE-TOUGHNESS  NUMERICAL-SIMULATION  SUGGESTED METHODS  SPECIMEN  PARAMETERS  FAILURE  DAMAGE  TESTS   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.