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Reproductive characteristics of the exotic Carassius auratus in the shoals of the middle reaches of Yarlung Zangbo River in Tibet,china

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Reproductive characteristics of the exotic Carassius auratus...

中国鱼类学会2008年学术研讨会

作者： Feng Chen~(1,2),Yifeng Chen~1 (1.institute of Hydrobiology,chinese academy of sciences,Wuhan 430072,china 2.The Graduate School of chinese academy of sciences,beijing 100039,china)

＜正＞Yarlung Zangbo River is the highest river in the *** fish fauna is very endemic and *** during recent decades,it is disturbed by exotic fishes,in which Carassius auratus has the most amount and spreads most *** paper studied the reproductive characteristics of exotic ***.397 specimens were collected,the female/male sex ratio was

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Expression of VEGF_(121)in gastric carcinoma MGC803 cell line

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World Journal of Gastroenterology 2000年第2期6卷 281-283页

作者： Xue Jun Tian Jian Wu Lin Meng Zhi Wei Dang Cheng Chao Shou beijing institute for Cancer Research,Oncology School of beijing Medical University,beijing 100034,china institute of Cancer Research,chinese academy of Medical sciences,beijing 100021,china 北京医科大学北京

INTRODUCTIONVascular endothelial growth factor(VEGF)whichis also known as vascular permeability factor(VPF)is a heparin-binding,dimeric polypeptide growthfactor and a potent mitogen for endothelial *** can stimulate the endothelial cell growth andenhance the motility through its two knownreceptors flt-1 and *** through thesereceptors,VEGF may stimulate angiogenesis

关键词： stomach neoplasms vascular endothelial growth factor monoclonal antibody MGC803 cell lines

An Improved Genetic Algorithm for Mobile Robotic Path Planning

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An Improved Genetic Algorithm for Mobile Robotic Path Planni...

第24届中国控制与决策会议

作者： Zhou Yongnian 1, 2 , Zheng Lifang 1 , Li Yongping 1 1. Shanghai institute of Applied physics, chinese academy of sciences, Shanghai, 201204, china2. The Graduate School of chinese academy of sciences, beijing, 100039, china

Proposed an improved genetic algorithm based on rough sets reduction theory, optimized the genetic operators, and overcame the weakness of the traditional genetic algorithm, such as huge number of initial population and slow velocity of optimization and convergence. The experiments both in simple and complex environment have been carried on. The simulation result indicated that the method can reduce the scale of the population, minimize the searching scope, and improve the velocity of the convergence and optimization for the mobile robotic path planning.

关键词： Mobile Robot Path Planning Rough Set Genetic Algorithm

Removal of Volatile Organic Compounds by Adsorption and Photocatalytic Oxydation

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Journal of Wuhan University of Technology(Materials Science) 2007年第3期22卷 450-452页

作者：许德平黄正宏 Lab of Advanced Materials Department of Materials Science and EngineeringTsinghua University School of Chemical and Environmental Engineering China University of Mining and Technology

Based on the study of equilibrium adsorption on viscose rayon-based activated carbon fiber （ACF） by gravimetric method, mounting of TiO2 on PAN-based activated carbon cloth （ACC） and their photocatalytic activity as well as adsorption performance for benzene were investigated. The crystallinity of TiO2 and pore structure were characterized by XRD and N2 adsorption. The results show that crystallinity of TiO2 and pore structure could be postulated by heat treatment condition. Both crystallinity of TiO2 and pore structure of hybrid have effects on photocatalytic performance of TiO2-mounted ACC. It would be more attractive and prospective for the combination of TiO2 photocatalytic activity and adsorption ability of porous materials.

关键词： volatile organic compounds activated carbon cloth TiO2

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Look into the Mind or Look at the Eyes:A Comparison of chinese and Westerners’ Beliefs of Lies

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Look into the Mind or Look at the Eyes:A Comparison of Chine...

2010 IEEE 2nd Symposium on Web Society

作者： Ning Zhang institute of Psychology chinese academy of sciences Graduate University of the chinese academy of sciences Yuqing Zhang institute of Psychology chinese academy of sciences Tingyu Zhang institute of Psychology chinese academy of sciences Kankan Wu institute of Psychology chinese academy of sciences Graduate University of the chinese academy of sciences

＜正＞Questions have often been raised whether there is a universal stereotype of the liar across cultures,and whether people from different cultures use the same cues to detect *** by The Global Deception Research Team’s worldwide investigation of stereotypes of liars,the present study explores native chinese beliefs of liars with demographically diversified samples and compares the results with those of *** Study 1,researchers investigated chinese beliefs of liars by asking participants to complete a questionnaire of lying *** Study 2,participants responded to the open-ended question, "How can you tell when people are lying?" The results suggest that there are both similarities and differences between chinese and the western beliefs about liars and lying *** causalities of the similarities and discrepancies are provided from social developmental and evolutionary psychological perspectives.

关键词： lying behavior deception cross-cultural beliefs stereotypes

Wobbling Rotation in Atomic Nuclei

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Wobbling Rotation in Atomic Nuclei

第十三届全国核结构研讨会暨第九次全国“核结构与量子力学”专题讨论会

作者： Y.-S.Chen~(1,2),Zao-Chun Gao~1 1 china institute of Atomic Energy,beijing 102413,china 2 institute of Modern physics,chinese academy of sciences Lanzhou 730000,china

More general schemes of rotational motion suggested by classical mechanics are precession and wobbling,henceforth both are called *** wobbling motion in nuclei is an excitation mode associated with the rotational asymmetry,which was predicted in *** the wobbling mode is expected to be general for triaxial nuclei,it had never been realized in experimental high spin spectra until a clear evidence was found for Lu in *** only few Lu isotopes the wobbling bands are seen in spite of extensive searches in nearby *** recently,the wobbling mode has been observed for the first time rather Lu,namely in Ta,making this collective motion a more general *** is an essential point in the study of nuclear rotations to establish whether and how the collective wobbling is generated microscopically by the *** the present paper,the wobbling states are described microscopically by the Triaxial Projected Shell Model（TPSM）.The experimental wobbling bands in typical wobbler Lu have been well reproduced by the present *** using the calculated wave functions of the wobbling states,the components of the total angular momentum along the three principle axes fixed on the body of nucleus are calculated as functions of spin.A deep understanding of the wobbling motion in nuclei can be achieved by analyzing the calculated geometry of the angular momentum in the intrinsic *** similar TPSM calculations of the TSD states have been performed to study the wobbling excitation in the neighboring nucleus Lu,in which an extra neutron is added to a wobbler *** has been found that the wobbling structure in odd-odd Lu can be modified by the addition of the extra neutron in some degrees,but not destroyed completely,indicating the possibility for observing the wobbling bands in the odd-odd Lu *** calculated wobbling bands with the quanta nw=0 and 1 are the signature partner for each other,and it is shown that no signature inversion occu

关键词： Wobbling motion Triaxial nuclei Superdeformation Shell model

The Suitability of Using Leaf Area Index to Quantify Soil Loss under Vegetation Cover

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Journal of Mountain Science 2011年第4期8卷 564-570页

作者： ZHANG Wentai YU Dongsheng SHI Xuezheng WANG Hongjie GU Zhujun ZHANG Xiangyan TAN Manzhi State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of SciencesNanjing 21o0o8 China Graduate University of the chinese academy of sciences Beijing 100039 China School of Bio-Chemical and Environmental Engineering Nanjing Xiaozhuang University Nanjing 211171 China

Soil erosion by water under forest cover is a serious problem in southern china.A comparative study was carried out on the use of leaf area index(LAI) and vegetation fractional coverage(VFC) in quantifying soil loss under vegetation *** types of vegetation with varied LAI and VFC under field conditions were exposed to two rainfall rates(40 mm h-1 and 54 mm h-1) using a portable rainfall *** rate,sediment concentration and soil loss rate were measured at relatively runoff stable *** negative exponential relationship(p 4) were obtained between LAI and sediment concentration,while no significant relationship existed between VFC and sediment *** mechanism by which vegetation canopy prevents soil loss was by reducing rainfall kinetic energy and sediment *** could better quantify such a role than ***,neither LAI nor VFC could explain runoff rate or soil loss *** must be taken when using LAI to quantify the role of certain vegetation in soil and water conservation.

关键词： Leaf area index(LAI) Runoff steady state Sediment concentration Simulated rainfall

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An overview of the crustal structure of the Tibetan plateau after 35 years of deep seismic soundings

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An overview of the crustal structure of the Tibetan plateau ...

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Zhongjie Zhang~(a,*),Yangfan Deng~(b,c),Jiwen Teng~a,Chunyong Wang~d,Rui Gao~e,Yun Chen~a,Weiming Fan~b a State Key Laboratory of Lithospheric Evolution,institute of Geology and Geophysics,chinese academy of sciences,beijing 100029,china b Guangzhou institute of Geochemistry,chinese academy of sciences,Guangzhou 510640,china c Graduate University of chinese academy of sciences,beijing 100049,china d institute of Geophysics,china Earthquake Administration,beijing 100081,china e institute of Geology,chinese academy of Geological sciences,Ministry of Land and Resources,beijing 100037,china

Since the pioneer wide-angle seismic profile along the Yadong-Gulu rift acquired in 1974 by the ex-institute of Geophysics,chinese academy of sciences(CAS),several research programs aimed to deep geophysics, performed thanks to the participation of chinese national and international institutions,have been developed during last 35 years,including 23 wide-angle seismic profiles with total length of about 6000 *** profiles are unevenly distributed,most of them in eastern Tibet and few profiles in western *** this paper,we make a summarized presentation of all these wide-angle seismic profiles and provide an overall view of the seismic velocity structure of the crust beneath the broad Tibetan plateau, which is the product of the continuous convergence and collision of the Indian and Eurasian plates since about 50 Ma *** patterns of crustal thickness variation related to the tectonic blocks and along suture zones of the region are *** crust thickness is confirmed to be about 70-75 km under southern Tibet,and 60-65 km under northern,northeastern and southeastern *** leading edge of the subducted lithosphere reaches the northern margin of the plateau and directly contacts with Tarim *** of the 90°E boundary,the Indian crust is moving towards the northern edge of the plateau and collides with Tarim Basin at 80°E while reach the Bangong-Nujiang suture belt at 88°E;eastward of the 90°E boundary,the northern edge of the crust should be at 50-100 km south of Bangong-Nujiang *** results supply helpful constrains to understand the mechanism of the continent-continent collision and its consequences in the plateau and neighbouring areas.

关键词： Wide-angle seismic profiling Crustal thickness Tibetan plateau

STUDY ON THE INTRAMOLECULAR CYCLIZATION THROUGH OPENING OF EPOXIDE I CYCLIZATION OF N-METHYL-N-BENZOYLMETHYLENE-β-PHENYL-α,β-EPOXYPROPIONAMIDE IN APROTIC SOLVENT

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chinese Chemical Letters 1993年第12期4卷 1035-1036页

作者： Guang Zhong YANG Li Hong WANG Liang HUANG institute of Matena Medica,chinese academy of Medical sciences ■Xian Nong Tan St,beijing,100050

Intramolecular cyclization of A catalyzed by IDA in benzene or THF yields two γ-lactams through C-alkylation and one δ-and one 7-membered lactam by O-alkylation.

关键词： Chen PHENYL STUDY ON THE INTRAMOLECULAR CYCLIZATION THROUGH OPENING OF EPOXIDE I CYCLIZATION OF N-METHYL-N-BENZOYLMETHYLENE EPOXYPROPIONAMIDE IN APROTIC SOLVENT

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