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	Assessing differences in work intensity resilience to pandemic outbreaks using large-scale mobile phone data 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION, 2025, 卷号: 136, 页码: 104343 作者: Yan, Xiaorui; Pei, Tao; Gong, Xi; Fu, Zhuoting; Liu, Yaxi \| 收藏 \| 浏览/下载：12/0 \| 提交时间：2025/02/24 Pandemic outbreak Work intensity Resilience Difference assessment Mobile phone data
	Timing analysis of Swift J1658.2-4242's outburst in 2018 with Insight-HXMT, NICER and AstroSat 期刊论文 OAI收割 Journal of High Energy Astrophysics, 2019, 卷号: 24, 页码: 30-40 作者: HXMT \| 收藏 \| 浏览/下载：57/0 \| 提交时间：2022/02/08 Accretion accretion disks Black hole physics X-rays: binaries: Swift J1658.2-4242 Astrophysics - High Energy Astrophysical Phenomena Abstract: We present the observational results from a detailed timing analysis of the black hole candidate Swift J1658.2-4242 during its 2018 outburst with the observations of Hard X-ray Modulation Telescope (Insight-HXMT), Neutron Star Interior Composition Explorer (NICER) and AstroSat in 0.1-250 keV. The evolution of intensity, hardness and integrated fractional root mean square (rms) observed by Insight-HXMT and NICER are presented in this paper. Type-C quasi-periodic oscillations (QPOs) observed by NICER (0.8-3.5 Hz) and Insight-HXMT (1-1.6 Hz) are also reported in this work. The features of the QPOs are analyzed with an energy range of 0.5-50 keV. The relations between QPO frequency and other characteristics such as intensity, hardness and QPO rms are carefully studied. The timing and spectral properties indicate that Swift J1658.2-4242 is a black hole binary system. Besides, the rms spectra of the source calculated from the simultaneous observation of Insight-HXMT, NICER and AstroSat support the Lense-Thirring origin of the QPOs. The relation between QPO phase lag and the centroid frequency of Swift J1658.2-4242 reveals a near zero constant when < 4Hz and a soft phase lag at 6.68 Hz. This independence follows the same trend as the high inclination galactic black hole binaries such as MAXI J1659-152.
	Agricultural land use intensity and its determinants: A case study in Taibus Banner, Inner Mongolia, China SCI/SSCI论文 OAI收割 2015 作者: Hao H. G.; Li, X. B.; Tan, M. H.; Zhang, J. P.; Zhang, H. Y. 收藏 \| 浏览/下载：36/0 \| 提交时间：2015/12/09 agricultural land use intensity labor intensity capital intensity opportunity cost of farm workers Taibus Banner off-farm work grain production nonfarm income labor migration policy communities environment pattern region
	Investigation on the effect of crack length on mechanical properties of functionally graded materials 会议论文 OAI收割 2010 International Conference on Frontiers of Manufacturing and Design Science, ICFMD2010, Chongqing, China, DEC 11-12, 2010 作者: Zhao XY(赵希宇) 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/02/26 Coatings Cracks Creep Finite element method Human engineering Manufacture Mechanical properties Stress intensity factors Thermal barrier coatings Crack length Crack tip fields Finite Element Functionally graded Maximum displacement Numerical results Principal stress Pure metals Stress intensity Thermal barrier Thermo-mechanical Work environments
	Monte Carlo simulation of light propagation in human tissue models (EI CONFERENCE) 会议论文 OAI收割 3rd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2009, June 11, 2009 - June 13, 2009, Beijing, China 作者: Wang Z.; Wang L.; Wang L.; Wang L.; Wang Z. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 In this paper in order to be more sensitive to the volumetric changes of capillaries in the skin the photon propagation process in human brain tissue and skin tissue with various source and detector separation distances were simulated based on the Monte Carlo method. The human brain model and the skin model that were used in our experiments have five layers and seven layers the separation distance of source and detector should be approximately eight millimeters. Future work was discussed at the end of the paper. 2009 IEEE. respectively. The backscattered intensity from every layer of the human tissue model was obtained by marking the deepest layer that every photon can reach. The simulation results of brain model indicated that the source-detector separation distance should be selected at three centimeters for studies on the actions of the brain nerve cells
	Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE) 会议论文 OAI收割 ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China Liang F.; Hu J. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS several key techniques as follows are introduced. Firstly the unique system configuration four axes mutually intersecting at the center of the SS is adopted which ensures the shape of the focus be maintained circular during the writing period. Secondly an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly to guarantee the linear velocity to accord with the exposure character of the photoresist all the time an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m and the steep sides of the lines are parallel to each other.