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Excitation-energy transfer between carotenoid and chlorophyll a in cytochrome b6f complex from Bryopsis corticulans

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Excitation-energy transfer between carotenoid and chlorophyl...

The 1st Asian-Pacific Symposium on Radiation Chemistry

作者： Jianping ZHANG Department of Chemistry Renmin university of china beijing 100872 china

The physiological functions of Car and chlorophyll a （Chl a） molecules in the cytochrome b6f （Cyt b6f） complex have attracted considerable research interest [1]. A number of recent findings point to the photo-protective role of Car, although detailed mechanisms remain to be clarified. The Car-to-Chl singlet energy transfer in the Cyt b6f complex seems to be species-dependent, which is probably due to a structural difference in the pigment-protein assembly of Cyt b6f complexes from different species. Our recent work has confirmed the light-harvesting function of α-carotene in the Cyt b6f complex from Bryopsis corticulans （B. corticulans） [2–4].

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An approach to 3D NURBS modeling of complex fault network considering its historic tectonics

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Progress in Natural Science:Materials International 2006年第5期16卷 546-553页

作者： ZHONG Denghua, LIU Jie and LI Mingchao (School of Civil Engineering, Tianjin university, Tianjin 300072, china) School of Civil Engineering Tianjin University Tianjin 300072 China

Fault disposal is a research area that presents difficulties in 3D geological modeling and visualization. In this paper, we propose an integrated approach to reconstructing a complex fault network (CFN). Based on the non-uniform rational B-spline (NURBS) techniques, fault surface was constructed, reflecting the regulation of its spatial tendency, and correlative surfaces were enclosed to form a fault body model. Based on these models and considering their historic tectonics, a method was put forward to settle the 3D modeling problem when the intersection of two faults in CFN induced the change of their relative positions. First, according to the relationships of intersection obtained from geological interpretation, we introduced the topological sort to determine the order of fault body construction and rebuilt fault bodies in terms of the order; then, with the disposal method of two intersectant faults in 3D modeling and applying the Boolean operation, we investigated the characteristic of faults at the intersectant part. An example of its application in hydropower engineering project was proposed. Its results show that this modeling approach can increase the computing efficiency while less computer memory is required, and it can also factually and objectively reproduce the CFN in the engineering region, which establishes a theoretical basis for 3D modeling and analysis of complex engineering geology.

关键词： fault network NURBS technique historic tectonics topological sort 3D modeling.

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工作卷入研究的新趋势

心理科学 2009年第1期32卷 158-160页

作者：时雨方来坛时勘北京师范大学认知神经科学与学习国家重点实验室北京1000875 中国科学院研究生院北京100049

工作卷入的研究处于不断的发展之中。从复杂、泛化的多因素的概念与结构发展到简单、内化的单因素的概念与结构;从理论上关注个体评价过程到重视个体-环境相匹配的观点;从工作场所的卷入研究到非工作场所的卷入度研究;以及从原来的只有... 详细信息

工作卷入的研究处于不断的发展之中。从复杂、泛化的多因素的概念与结构发展到简单、内化的单因素的概念与结构;从理论上关注个体评价过程到重视个体-环境相匹配的观点;从工作场所的卷入研究到非工作场所的卷入度研究;以及从原来的只有在美国的研究扩展到开始关注跨文化的比较研究。最后,文章还对今后研究的热点与方向进行了展望。

关键词：工作卷入卷入度个体-环境匹配

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Exponential Asymptotic Stability of Repairable System with Randomly Selected Repairman

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Exponential Asymptotic Stability of Repairable System with R...

2009中国控制与决策会议

作者： Xing QIAO~(1,2),Dan MA~1,Zhaoxing LI~1 1.Dept.of Math.,Daqing Normal university,Daqing 163712,china 2.beijing Institute of Information and Control,beijing 100037,china

＜正＞In this paper,the repairable system solution’s exponential asymptotic stability was *** we prove that the positive contraction strongly continuous semigroup which is generated by the operator corresponding to these equations describing a system with randomly selected repairman is a quasi-compact *** the result that 0 is an eigenvalue of the operator with algebraic index one and the strongly continuous semigroup is contraction,we deduce that the spectral bound of the operator is *** the above results we obtain easily the exponential asymptotic stability of the solution of the repairable system.

关键词： Exponential asymptotic stability Quasi-compact operator Positive contraction strongly continuous semigroup Repairable system

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三峡库区山地灾害基本特征及滑坡与降水关系

山地学报 2005年第3期23卷 319-326页

作者：马占山张强朱蓉江志红南京信息工程大学国家气候中心南京信息工程大学江苏南京210044国家气候中心北京100081

分析三峡库区山地灾害的基本特征,着重讨论库区滑坡灾害与前期降水量的相关关系,运用Fisher判别法则建立该区滑坡发生的降水预报方程。结果表明,三峡库区山地灾害主要出现在雨季,7月发生最为频繁,灾害种类多样,主要以滑坡为主,降水是诱... 详细信息

分析三峡库区山地灾害的基本特征,着重讨论库区滑坡灾害与前期降水量的相关关系,运用Fisher判别法则建立该区滑坡发生的降水预报方程。结果表明,三峡库区山地灾害主要出现在雨季,7月发生最为频繁,灾害种类多样,主要以滑坡为主,降水是诱发山地灾害的主要因素;当日和前5d的暴雨日数、当日和前10d降水量与滑坡发生的关系最为密切,诱发库区滑坡灾害的主要降水类型为暴雨诱发型和多日中大雨诱发型;通过Fisher判别方法,以两个降水因子建立起的滑坡发生的预报方程,对于三峡库区滑坡发生具有一定的判别能力,为库区山地灾害的预防提供科学依据。

关键词：三峡库区山地灾害降水 Fisher判别预报方程

The research on Policy-management-based Dynamic Spectrum Access Technology for Cognitive network

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The Research on Policy-management-based Dynamic Spectrum Acc...

2009 ISECS International Colloquium on Computing, Communication, Control, and Management

作者： Lu Chuntao,Zhang Huyin,Wu Di School of Computer Wuhan university Wuhan,china An Hui Institute for Information Industry china center for Information Industry Development beijing,china

Nowadays,it is a very popular topic to improve the performance of cognitive *** aim to provide a solution for cognitive network,through the policy-based performance management system which we are *** this paper,we proposes the policy-based dynamic spectrum access management system framework at first,and the distributed policy repository to provide *** also, there would be a part to present our design about some new strategies for the policy repository,that with the technology features of cognitive network for dynamic spectrum access,a cognitive network can detect the use of local channel and real-time status to respond automatically to avoid interrupts.

关键词： Policy Cognitive network Dynamic spectrum access

Studies on the Relationship Between the Structure and Anticonvulsant Activity of Cinnamamides and Their Analogs

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Chemical research in Chinese Universities 1989年第2期5卷 125-137页

作者： Wang Shuyu, Li Renli and Liu Weichin (School of Pharmaceutical Sciences, beijing Medical university, beijing)

On the basis of systematic modification of the structure of componds of antiepilepsirine type, more than 200 cinnamamides were synthesized and tested by animal assay (maximal electroshock seizure, MES). Pharmacological evaluation showed that the configuration and the substituents on the phenyl ring and the nitrogen of amides, and substituents on the double bond displayed an important effect on the anticonvulsant *** studying the effect of the modification of structure to anticonvulsant activity, Hansch approach was employed to study the QSAR among 38 cinnamamides, and Hopfinger' s MSA was employed to study the MSA-QSAR among 26 cinnamamides.

关键词： Cinnamamides Anticonvulsant activity Cinf iguration QSAR MAS

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Self-Certified Identity-based Signcryption in DRM

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Self-Certified Identity-based Signcryption in DRM

Asia Simulation conference 2008/the 7th International Conference on System Simulation and Scientific Computing（ICSC‘2008）

作者： Aina Sui,School of Computer Science,Communication university of china,beijing,china,100024 Bo Peng,School of Computer Science,Communication university of china,beijing,china,100024 Yongbin Wang,School of Computer Science,Communication university of china,beijing,china,100024

Authentication and encryption technology are the core components of the DRM (Digital Rights Management) system. In this paper, a security protocol basing on the identity-based signcryption scheme is proposed to implement these technologies simultaneously. According to the comparison with the PKI (Public Key Infrastructure)-based DRM system, the advantages of this protocol are proved. However, in practice the application of the identity-based cryptosystems is limited by the key escrow and distribution problems. In order to solve these problems, we proposed a new self-certified identity-based signcryption scheme, in which partial data chosen by the users are added to the private key. This scheme is proved that it can successfully avoid the key escrow and distribution problems, and is more secure and effective in practice.

关键词： Self-Certified Identity-based Signcryption in DRM

Effect of equatorial westerly and equatorial anticyclone on typhoon movement

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Acta Oceanologica Sinica 1988年第S1期 75-83页

作者： Bao Chenglan, Xu Haiming and Xu Liang National research center for Marine Environment Forecasts, State Oceanic Administration,beijing, chinaDept. of Atmos. Sci., Nanjing university, Nanjing, chinaGuangdong Institute of Tropical Marine Meteorology, Guangzhou, china

\bout 15% of typhoons over the Northwest Pacific Ocean-South china Sea suddenly turn eastward or northward south of 22°N. It is because equatorial anticyclone-equatorial buffer zone over there usually strengthens and moves northward, then induces a burst and strengthening of equatorial westerly. As a result, typhoons are steered and then turn eastward. Calculations show that a typhoon would turn eastward at lower latitudes about 32-20 hours after the equatorial westerly wind speed attains 12-24m/s. A simple numerical simulation is also run in this paper. Typhoon moves normally toward W-NW when the tropical easterly is stronger or slightly weaker than the equatorial westerly; on the contrary, it turns eastward when the equatorial westerly is obviously stronger than the tropical easterly. Some synoptic cases given in this paper verify this viewpoint entirely. The authors emphasize that an important effect of the equatorial westerly-equatorial anticyclone on typhoon movement must be considered carefully.

关键词： Effect of equatorial westerly and equatorial anticyclone on typhoon movement