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	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.
	Combining Load and Motor Encoders to Compensate Nonlinear Disturbances for High Precision Tracking Control of Gear-Driven Gimbal 期刊论文 OAI收割 SENSORS, 2018, 卷号: 18, 期号: 3, 页码: 754 作者: Tang, Tao; Chen, Sisi; Huang, Xuanlin; Yang, Tao; Qi, Bo \| 收藏 \| 浏览/下载：31/0 \| 提交时间：2019/08/23 sensor-fusion nonlinear disturbances rate deviation DOB gear-driven
	CORROSION BEHAVIOR OF LONG-TIME IMMERSED RUSTED CARBON STEEL IN FLOWING SEAWATER 期刊论文 OAI收割 ACTA METALLURGICA SINICA, 2012, 卷号: 48, 期号: 10, 页码: 1260-1266 作者: Peng Xin; Wang Jia; Shan Chuan; Wang Haijie; Liu Zaijian \| 收藏 \| 浏览/下载：9/0 \| 提交时间：2021/02/02 carbon steel flowing seawater rust layer corrosion rate deviation
	CORROSION BEHAVIOR OF LONG-TIME IMMERSED RUSTED CARBON STEEL IN FLOWING SEAWATER 期刊论文 OAI收割 ACTA METALLURGICA SINICA, 2012, 卷号: 48, 期号: 10, 页码: 1260-1266 作者: Peng Xin; Wang Jia; Shan Chuan; Wang Haijie; Liu Zaijian \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2021/02/02 carbon steel flowing seawater rust layer corrosion rate deviation
	Deviation Property of Periodic Measures in C-1 Non-uniformly Hyperbolic Systems with Limit Domination 期刊论文 OAI收割 ACTA MATHEMATICA SINICA-ENGLISH SERIES, 2012, 卷号: 28, 期号: 9, 页码: 1727-1740 作者: Qian Sheng; Sun Wen Xiang; Tian Xue Ting \| 收藏 \| 浏览/下载：10/0 \| 提交时间：2021/01/14 INVARIANT-MEASURES Exponential growth rate generalized entropy large deviation limit domination Pesin set
	Dynamic variation of economic difference in Tarim Basin, Xinjiang, China 会议论文 OAI收割 2010 International Conference on Challenges in Environmental Science and Computer Engineering, Wuhan, China, 2010 Sun; Changlong1; 2; Du; Hongru1; Xu; Xiaoliang1; Ma; Wenwen1; Chen; Zhongsheng1 收藏 \| 浏览/下载：28/0 \| 提交时间：2011/08/23 Environmental engineering - Regional planning - Regression analysis - Statistics - Characteristics of dynamics - Development rate - Dynamic variations - Economical difference - Per capita - Regression model - Spatial structure - Standard deviation - Tarim Basin - Xinjiang