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TECTONIC DEFORMATION AND EVOLUTION OF TONGBAI-WESTERN DABIE OROGEN

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Scientia Geologica Sinica 2000年第3期 279-286页

作者： Jin Weijun (institute of Geology and Geophysics, chinese academy of Science, {3. 100101) Yuan Xuecheng (chinese academy of Geoexploration, {3. 100083.

Tongbai-Dabie orogen experienced the continent margin evolution during Jingling period. The eclogite-bearing melange formed at a B-type subduction zone. Tongbai-Shangcheng brittle-ductile shear zone is the relict of the suture. Tongbai-Dabie orogen had the extensional feature during early Caledonia. The extensional tectonics formed the limited ocean, and led to the formation of Tongbai metamorphic core complex. The strongest compression in Indoanian period created the framework of the orogen.

关键词： UHP TECTONIC DEFORMATION AND EVOLUTION OF TONGBAI-WESTERN DABIE OROGEN

Polymerization-Rendered Polypropylene/Clay Nanocomposites:An In-Reactor Polymerization and Properties

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Polymerization-Rendered Polypropylene/Clay Nanocomposites:An...

3. mathematical model for suspended load transport by turbulent flows and its applications

5th International Symposium on High-Tech Polymer Materials

作者： Jin-Yong Dong CAS Key Laboratory of Engineering Plastics institute of Chemistry chinese academy of {3. beijing 100190 china

＜正＞Polyolefins （PE and PP,etc） are among the most interesting polymers deemed to benefit the most from the formation of nanocomposite with clay （mostly montmorillonite,MMT） due to their widespread *** particular,isotactic polypropylene （i-PP）,one of the most important class of polyolefins possessing many superior material properties in terms of mechanical,thermal,and

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Science china(Technological sciences) 2004年第2期47卷 237-256页

作者： LU Yongjun1,DOU Guoren1,HAN Longxi2,SHAO Xuejun3.& YANG Xianghua1,3.1.Nanjing Hydraulic Research institute,Nanjing 210029,china 2.College of Environmental Engineering of Hohai University,Nanjing 210098,china 3.Department of Hydraulic Engineering,Tsinghua University,{3. 100084,china Nanjing Hydraulic Research institute Nanjing China College of Environmental Engineering of Hohai University Nanjing China Department of Hydraulic Engineering Tsinghua University Beijing China

This paper presents a 3. mathematical model for suspended load transport in turbulent flows. Based on Dous stochastic theory of turbulent flow, numerical schemes of Reynolds stresses for anisotropic turbulent flows were obtained. A refined wall function was employed to treat solid wall boundaries. The equations for 2D suspended load motion and sorting of bed material have been expanded into 3. cases. Numerical results are validated by the measured data of the Gezhouba Project, and proved to be in good agreement with the experimental. The present method has been employed to simulate sediment erosion and deposition in the dam area of Three Gorges Project, and for the operation of the project, siltation process and deposition pattern in the near-dam area of the reservoir, size distribution of the deposits and bed material, and flow fields and sediment concentration fields at different time and elevations are predicted. The predicted results are close to the experimental observations in physical model studies. Thus, a new method is established for 3. simulation of sediment motion in dam areas of multi-purpose water projects.

关键词： turbulent flows, Dou's stochastic theory, nonuniform suspended load, riverbed erosion and deposition, 3. mathematical model, Three Gorges Project.

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开拓宋代史料的视野与《三言》、《二拍》

四川大学学报（哲学社会科学版） 2005年第1期 90-103页

作者：王曾瑜中国社会科学院历史研究所北京100081

过去往往因《三言》、《二拍》成书于明代而将其视作研究明代历史的史料。其实《三言》、《二拍》中一部分脱胎于宋人话本,是可作宋代史料使用的。宋人话本并无原始的宋本传世,现存的多系元明时期刊印,故后人的窜改就势不可免。《三言... 详细信息

过去往往因《三言》、《二拍》成书于明代而将其视作研究明代历史的史料。其实《三言》、《二拍》中一部分脱胎于宋人话本,是可作宋代史料使用的。宋人话本并无原始的宋本传世,现存的多系元明时期刊印,故后人的窜改就势不可免。《三言》、《二拍》中若干取材于宋人话本者,往往成为宋元明三代社会生活和名物制度的杂烩,这是使用此类史料时必须注意的。

关键词：宋代史料《三言》《二拍》

RNA-Dependent RNA Polymerase 1 from Nicotiana tabacum Suppresses RNA Silencing and Enhances Viral Infection in Nicotiana benthamiana

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RNA-Dependent RNA Polymerase 1 from Nicotiana tabacum Suppre...

Topological Conditions for Unique Solvability of RLC OP Amp Networks

中国植物病理学会第九届全国会员代表大会暨2010年学术年会

作者： Hui-shan Guo (State Key Laboratory of Plant Genomics,institute of Microbiology,chinese academy of {3., beijing,100101,china)

Endogenous eukaryotic RNA-dependent RNA polymerases(RDRs)produce double-stranded RNA intermediates in diverse processes of small RNA synthesis in RNA silencing ***6 is required in plants for posttranscriptional gene s...

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Journal of Systems Engineering and Electronics 1996年第4期7卷 47-56页

作者： Yang Jiawei(beijing institute of Remote Sensing Equipment, beijing 100854, P.R.{3.) beijing institute of Remote Sensing Equipment Beijing 100854 P.R. China

Based on the nullor equivalent model of the ideal op amp, the solvability of RLC op amp networks are discussed and some practical problems are analyzed. Then several necessary and sufficient topological conditions for unique solvability are given and their proofs are shown in *** conditions have great applications in the analysis, synthesis and diagnosis of networks. Finally the solvability of an illustrative network are analyzed as an example.

关键词： OP amp Nullor Topological condition Solvability Tree.

Simulation of Soil Organic Carbon Dynamics in chinese Rice Paddies from 1980 to 2000

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Pedosphere 2007年第1期17卷 1-10页

作者： ZHANG Wen YU Yong-Qiang SUN Wen-Juan HUANG Yao State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100059 China

Changes in soil organic carbon （SOC） of rice paddies in china were simulated from 1980 to 2000 by linking a coupled bio-physical model to GIS database. The coupled model consists of two sub-models including Crop-C for simulating net primary productivity and hence residue retention and Soil-C for computing the turnover rates of SOC. The GIS database included parameters of climate, soils and agricultural activities with the resolution of 10 km × 10 km. Model simulation indicated that chinese rice paddies covering 22.6 Mha sequestrated a considerable amount of C, about 0.15 ± 0.07 Pg C from 1980 to 2000. Annual sequestration rate increased sharply from -180 ± 45 kg C ha^-1 year^-1 in 1980 to 440 ± 170 kg C ha^-1 year^-1 in 1989. Thereafter, a steaziy sequestration rate of 460 ± 170 kg C ha^-1 year^-1 occurred till 1994 and declined since then. Approximately 84% of the chinese rice paddies sequestrated carbon, while 15% lost carbon and 1% kept balance over the 20 years. Great SOC sequestration occurred in eastern, southern and central china, while a slight decline of SOC existed in some regions of northeastern and southwestern china.

关键词： chinese rice paddy GIS model estimates SOC

Reply to the comment by Zhao et ***:“Tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North china Orogen”

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Reply to the comment by Zhao et ***:“Tectonic evolution of ...

The New Architecture with Time-Spatial Consistency for 5G Networks

中国科学院地质与地球物理研究所第十届(2010年度)学术年会

作者： Zhihong Wang~* State Key Laboratory of Lithospheric Evolution,institute of Geology and Geophysics,chinese academy of {3.,beijing,100029,china

*** I welcome the comments by Zhao et al.(2010) on my recent paper dealing with the tectonic evolution of the Hengshan-Wutai-Fuping complexes and its implication for the Trans-North china Orogen(TNCO).This reply gives... 详细信息

关键词： Tectonic vergence Subduction polarity Tectonic setting Neoarchean Wutai granitoids Cordilleran-type orogen

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china Communications 2016年第1期13卷 68-79页

作者： SUN Zhennian XU Xu CHAI Xiaomeng ZHANG Tianyu TIAN Lin ZHANG Zhongshan beijing Engineering and Technology Center for Convergence Networks and Ubiquitous Services University of Science and Technology Beijing (USTB) Beijing China 100083 NEC Laboratories china (NLC) Beijing 100084 China institute of Computing Technology Chinese Academy of Sciences Beijing China 100190

While operators have started deploying fourth generation(4G) wireless communication systems,which could provide up to1 Gbps downlink peak data rate,the improved system capacity is still insufficient to meet the drastically increasing demand of mobile users over the next *** main causes of the above-mentioned phenomenon include the following two aspects:1) the growth rate of the network capacity is far below that of user's demand,and 2) the relatively deterministic wireless access network(WAN) architecture in the existing systems cannot accommodate the prominent increase of mobile traffic with space-time domain *** order to address the above-mentioned challenges,we investigate the time-spatial consistency architecture for the future WAN,whilst emphasizing the critical roles of some spectral-efficient techniques such as Massive multiple-input multiple-output(MIMO),full-duplex(FD)operation and heterogeneous networks(HetNets).Furthermore,the energy efficiency(EE)of the HetNets under the proposed architecture is also evaluated,showing that the proposed user-selected uplink power control algorithm outperforms the traditional stochastic-scheduling strategy in terms of both capacity and EE in a two-tier *** other critical issues,including the tidal effect,the temporal failure owing to the instantaneously increased traffic,and the network wide load-balancing problem,etc.,are also anticipated to be addressed in the proposed architecture.(Abstract)

关键词： wireless access network spectral efficiency energy efficiency super base station heterogeneous network