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北京大学 [4]

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	Constant cyclotron line energy in Hercules X-1 - Joint Insight-HXMT and NuSTAR observations 期刊论文 Journal of High Energy Astrophysics, 2019, 卷号: 23, 页码: 29-32 作者: HXMT 收藏 \| 浏览/下载：42/0 \| 提交时间：2022/02/08 Stars: neutron star Pulsars: binary(Her X-1) X-rays: stars Astrophysics - High Energy Astrophysical Phenomena Abstract: The long-term evolution of the centroid energy of the CRSF in Her X-1 is still a mystery. We report a new measurement from a campaign between Insight-HXMT and NuSTAR performed in February 2018. Generally, the two satellites show well consistent results of timing and spectral properties. The joint spectral analysis confirms that the previously observed long decay phase has ended, and that the line energy instead keeps constant around 37.5 keV after flux correction.
	Combined integral method for mid/long-term dynamic simulation of power system 期刊论文 Electric Power Automation Equipment, 2017, 卷号: Vol.37 No.2, 页码: 113-120 作者: Zhang, F.a; Qiu, X.a; Li, C.b 收藏 \| 浏览/下载：9/0 \| 提交时间：2019/11/21 electric power systems electromechanical transient mid/long-term dynamic stiff system new combined integral method
	Potential health benefits of controlling dust emissions in Beijing 期刊论文 ENVIRONMENTAL POLLUTION, 2016 Meng, Jing; Liu, Junfeng; Fan, Songmiao; Kang, Chuyun; Yi, Kan; Cheng, Yanli; Shen, Xing; Tao, Shu 收藏 \| 浏览/下载：10/0 \| 提交时间：2017/12/03 Road dust PM2.5 Health impact Air pollution control PARTICULATE AIR-POLLUTION NEW-YORK-CITY AEROSOL CHEMICAL-COMPONENTS TIME-SERIES ANALYSIS LONG-TERM EXPOSURE DECOMPOSITION ANALYSIS ROAD DUST UNITED-STATES SEASONAL DISTRIBUTION PREMATURE MORTALITY
	大气复合污染条件下新粒子生成和增长机制及其环境影响期刊论文化学学报, 2016 胡敏; 尚冬杰; 郭松; 吴志军收藏 \| 浏览/下载：19/0 \| 提交时间：2017/12/04 新粒子生成颗粒物增长转化机制环境效应大气复合污染 new particle formation particle growth transformation mechanism environmental impact complex air pollution CLOUD CONDENSATION NUCLEI NUMBER SIZE DISTRIBUTIONS ATMOSPHERIC NANOPARTICLE GROWTH SULFURIC-ACID CONCENTRATION SECONDARY ORGANIC AEROSOL FORMATION EVENTS LONG-TERM URBAN ATMOSPHERE RIVER DELTA NUCLEATION
	Connection of organics to atmospheric new particle formation and growth at an urban site of Beijing 期刊论文大气环境, 2015 Wang, Z. B.; Hu, M.; Pei, X. Y.; Zhang, R. Y.; Paasonen, P.; Zheng, J.; Yue, D. L.; Wu, Z. J.; Boy, M.; Wiedensohler, A. 收藏 \| 浏览/下载：6/0 \| 提交时间：2015/11/10 New particle formation Sulfuric acid Organic vapor Particle growth NUCLEATION MODE PARTICLES CLOUD CONDENSATION NUCLEI NUMBER SIZE DISTRIBUTIONS SULFURIC-ACID CONCENTRATION AEROSOL FORMATION LONG-TERM NANOPARTICLE GROWTH OXIDATION-PRODUCTS INITIAL STEPS BOREAL FOREST
	Applying land use regression model to estimate spatial variation of PM2.5 in Beijing, China SCI/SSCI论文 2015 作者: Wu J. S.; Li, J. C.; Peng, J.; Li, W. F.; Xu, G. 收藏 \| 浏览/下载：51/0 \| 提交时间：2015/12/09 Land use regression Fine particulate matter PM2.5 Spatiotemporal variation Outdoor exposure Air pollution Beijing particulate air-pollution new-york-city ambient fine particulate long-term exposure source apportionment urban area matter concentrations ultrafine particles sulfur-dioxide united-states
	Some New Oscillation Criteria for a Class of Nonlinear Fractional Differential Equations with Damping Term 期刊论文 Journal of applied mathematics, 2013, 页码: 912072-1-912072-11 作者: Bin Zheng; Qinghua Feng 收藏 \| 浏览/下载：8/0 \| 提交时间：2019/12/23 Some New Oscillation Criteria a Class of Nonlinear Fractional Differential Equations Damping Term
	Research of software re-injection technology for aerospace camera controller in-orbit (EI CONFERENCE) 会议论文 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China Xu W. 收藏 \| 浏览/下载：17/0 \| 提交时间：2013/03/25 For the factors of increased of tasks enhancements of functions and improvement of integrity and complexity in aerospace camera application system has raised high and long-term in-orbit autonomy and reliability requirements on camera controller. Based on an actual project application background this paper has put forward a design method of new high reliability aerospace camera controller in-orbit software reinjection instruction sequence which use TSC695F as kernel CPU and process flow of bootstrap receive cache checkout and storage update data. Finally combined with specific test module for camera controller software re-injection the validity of the software re-injection method raised here has been verified. Still here gives out reference codes of update data package which generated by the ground. 2012 IEEE.
	Automatic term extraction from Chinese scientific texts 会议论文作者: Zheng, Qinghua; Luo, Junying; Liu, Jun 收藏 \| 浏览/下载：3/0 \| 提交时间：2019/12/10 Automatic term extraction Different domains Domain independences Linguistic methods New approaches Scientific texts Term extraction
	Long-Term Behavior of Prestressed Old-New Concrete Composite Beams 期刊论文 JOURNAL OF BRIDGE ENGINEERING, 2011, 卷号: 16, 页码: 275-285 作者: Wang, Wen-wei; Dai, Jian-guo; Li, Guo; Huang, Cheng-kui 收藏 \| 浏览/下载：1/0 \| 提交时间：2019/12/18 Old-new concrete composite beam Long-term deflection Incremental model Prestress Creep Shrinkage Prestress loss Old-to-new concrete interface

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