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OsVPE1,a vacuolar processing enzyme,is required for efficient processing of glutelins in rice

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OsVPE1,a vacuolar processing enzyme,is required for efficien...

2008中国作物学会学术年会

作者： Yihua Wang~1 Susong Zhu~2 Shijia Liu~1 Ling Jiang~1 Liangming Chen~1 Yulong Ren~1 Xiaohua Han~1 Feng Liu~1 Sulan Ji~1 Xi Liu~1 Jianmin Wan~(1,2,*) (1 national Key Laboratory for Crop Genetics and Germplasm Enhancement,Jiangsu Plant Gene engineering research center,nanjing Agricultural University,nanjing 210095,china,and 2 national Key Facility for Crop Gene resources and Genetic Improvement,Institute of Crop Science,Chinese Academy of Agricultural Sciences,Beijing 100081,china)

Rice(Oryza sativa L.)accumulates prolamines and glutelins as major storage *** latter is synthesized on rough endoplasmic reticulum(rER)as a 57kD precursor and then sorted into protein storage vacuoles(PSVs),where it is processed into acidic and basic *** report here a novel rice glutelin mutant,W379,which accumulates higher levels of the 57kD glutelin *** analysis revealed that the phenotype of W379 is controlled by a single recessive nuclear *** a map-based cloning strategy,we identified the corresponding gene of the W379 mutant,OsVPE1,a homoiog of the Arabidopsisβ***1 encodes a polypeptide of 497 amino *** sequence analysis revealed a mis-sense alteration in the mutant W379,resulting in an amino acid substitution of Cys269 to

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循环荷载下考虑主应力旋转的软土力学响应研究

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岩土力学 2015年第S2期36卷 148-156页

作者：邓鹏郭林蔡袁强王军浙江大学滨海和城市岩土工程研究中心浙江杭州310058 温州大学建筑工程学院浙江温州325035

目前用于轨道路堤分析计算的参数多是通过三轴试验获得,而列车荷载经过时土单元应力路径与循环三轴试验加载路径的显著差异可能导致预测失真而引发工程问题。针对某城市轨道进行了三维计算,并分析了移动列车荷载下土单元应力幅值、循环... 详细信息

目前用于轨道路堤分析计算的参数多是通过三轴试验获得,而列车荷载经过时土单元应力路径与循环三轴试验加载路径的显著差异可能导致预测失真而引发工程问题。针对某城市轨道进行了三维计算,并分析了移动列车荷载下土单元应力幅值、循环周数、主应力轴旋转的分布规律。在该基础上,采用空心圆柱循环扭剪试验对该复杂应力路径进行了模拟,研究了饱和软黏土的孔压及变形累积特性。结果表明,列车荷载经过时地基土单元大主应力将在(-90°,90°)内发生旋转;该主应力轴旋转将显著促进软黏土孔压和应变的累积,竖向应力幅值为15 k Pa时,循环扭剪试验产生的孔压值比循环三轴试验高77%,累积应变增大了近50%;随着循环应力水平提高,二者累积孔压及累积应变的差值还会进一步增大,甚至出现循环三轴下仅产生较小应变而循环扭剪下已破坏的本质性差异。

关键词：循环加荷载主应力旋转软黏土力学响应

Constructive proof of deficiency theorem of (g,f)-factor

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Science china Mathematics 2010年第6期53卷 1657-1662页

作者： LU HongLiang1,& YU QingLin2 1center for Combinatorics,LPMC,Nankai University,Tianjin 300071,china 2Department of Mathematics and Statistics,Thompson Rivers University,Kamloops V2C5N3,Canada center for Combinatorics LPMC Nankai University Tianjin China Department of Mathematics and Statistics Thompson Rivers University Kamloops Canada

Berge(1958) gave a formula for computing the deficiency of maximum matchings of a *** generally,Lov'asz obtained a deficiency formula of(g,f)-optimal graphs and consequently a criterion for the existence of(g,f)-***,Lov'asz proved that there is one of these decompositions which is "canonical" in a *** this paper,we present a short constructive proof for the defficiency formula of(g,f)-optimal graphs,and the proof implies an efficient algorithm of time complexity O(g(V)|E|) for computing the ***,this proof implies this canonical decomposition via efficient algorithms(i.e.,in polynomial time).

关键词： deficiency factor alternating trail

efficient Mechanisms for Task Allocation in Agile Supply Chain Management

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厦门大学学报（自然科学版） 2002年第S1期41卷 274-页

作者： REN Chang-rui, CHAI Yue-ting, LIU Yi (national engineering research center for Computer Integrated Manufactu ring Systems, Department of Automation, Tsinghua University, Beijing 100084, china)

An agile supply chain can be defined as a dynamic s up ply network of some autonomous or semi-autonomous business entities, which can well adapt to the competitive, cooperative and dynamic market environment Agile supply chain needs quick response ability to the unpredictable and ever-changin g market environment, and the entities in agile supply chain have complex relati onships of competition, cooperation and dynamics, which make agile supply chain management a very complex process that includes a lot of no-linear, dynamic and uncertain factors. There is a common opinion that applying multi-agent collaborative work environm ent is an appropriate method to solve agile supply chain management problem. We have presented a model based on coordination of Multi-Agent System (MAS) two ye ars ago, and it has already been proved to be a rather better model by practical project. In the model, we apply MAS structure, and agents negotiate each other to achieve coordination, so the communication among agents becomes very impo rtant. Task allocation is a very common problem in agile supply chain management, and t here are many complex task re-allocation problems at the transaction level. In such situations, agents need to negotiate with others to produce effective alloc ation results. But traditional negotiation mechanisms often cease to work as a r esult of communication or computational complexities. Auctions provide an effici ent way of resolving one-to-many negotiations, so in this paper, we choose Eng lish auction to design a sufficient negotiation mechanism, and use combinatorial auction to solve the complex task re-allocation problems. We first analyze the features of task allocation problems in agile supply chain and build a problem model, and then design a comprehensive task allocation mechanism based on auctio n theories. Finally, by examining our results for what it is, essentially, an ap plication of game-theory and mechanism design to existing application, we draw

关键词： agile supply chain task allocation auction

The Feasibility Analysis of Decrease the Reverse Reaction Rate in the Carbothermic Reduction of Magnesia in a Vacuum

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The Feasibility Analysis of Decrease the Reverse Reaction Ra...

Mechanical engineering and Material Science—2012 International Conference on Mechanical engineering and Material Science(MEMS 2012)

In the present work,the behavior of un-coagulable CO was experimentally investigated during the condensation process of carbothermic reduction of magnesia at condensing zone temperatures ranging from 923 K to 1223 *** powders and magnesium lump condensates were produced under different conditions and characterized by scanning electron microscopy and energy-dispersive X-ray *** reverse reaction products C and MgO were formed following the process of magnesium vapor condensation and we just found the nearer the temperature of the condensation zone approached the liquid transition temperature,the lower the rate of the reverse reaction between CO and magnesium ***,decreases in the rate of the reverse reaction of magnesium were possible by controlling the condensation temperature in experiments.

关键词： Magnesium Vapor Vacuum Reverse reaction Carbothermic reduction.

OSA/Parlay规范的不足及其改进策略

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计算机工程与应用 2004年第3期40卷 135-137页

作者：徐韬张凌华南理工大学信息工程研究中心广州510640

该文简要介绍了下一代网络中的业务开发接口:OSA/ParlayAPI,着重讨论了它的不足并提出了改进策略。

关键词：下一代网络 OSA/Parlay 映射 SIP 业务开发接口

Differentiated Mobile IPv6 Based On the Movement Domain

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Differentiated Mobile IPv6 Based On the Movement Domain

2006 the IET International Conference on Wireless Mobile & Multimedia Networks

作者： Liang Zhao Jing Yu Xiaohui Zhang Binqiang Wang national Digital Switching System engineering & Technological research center P.O. Box: 1001-NDSC Zhengzhou 450002 P.R.china

＜正＞In this paper a differentiated optimal mobility support in IPv6 is presented in order to provide efficient mobile IPv6 implementation based on the movement domain. We explore the inefficient mechanisms of MIPv6 in current network architecture, and put forward our ideas. Analysis on the new scheme shows that the differentiate optimal mobile IPv6 can lower the cost and raise the processing efficiency.

关键词： Mobile IPv6 movement domain tunnel Routing Home agent

Parameter-Dependent Robust H∞ Model Reduction for Discrete-Time Switched Polytopic Linear Systems

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Parameter-Dependent Robust H∞ Model Reduction for Discrete-...

第二十六届中国控制会议

作者： Qiu Jianbin1,Feng Gang2,Yang Jie3 1.Department of Manufacturing engineering and engineering Management,University of Science and Technology of china (USTC) & City University of Hong Kong (CityU) Joint Advanced research center,Suzhou 215123,P.R.china2.Department of Manufacturing engineering and engineering Management,City University of Hong Kong,Hong Kong,P.R.china3.Department of Precision Machinery and Instrumentation,University of Science and Technology of china,Hefei,230026,P.R.china

This paper investigates the problem of parameter-dependent robust H∞ model reduction for a class of discrete-time switched linear systems with polytopic parameter *** objective is to design a parameter-dependent homogeneous reduced-order switched system to approximate a given switched polytopic linear system such that the resulting error system is asymptotically stable with a guaranteed H∞ performance γ for any switching *** on a switched parameter-dependent quadratic Lyapunov function （SPDQLF） combined with Finsler’s Lemma,a novel sufficient condition in terms of a set of lin- ear matrix inequalities （LMIs） for robust H∞ performance analysis is first proposed and in turn the reduced-order models are *** is shown that by using a new linearization technique incorporating a bounding technique,the matrices for the reduced-order models can be obtained by solving a set of linear matrix inequalities,which are numerically efficient with com- mercially available ***,a numerical example is provided to illustrate the effectiveness and less conservatism of the proposed approaches.

关键词： Switched linear systems Model reduction Polytopic uncertainties Switched parameter-dependent Lyapunov func- tions Linear matrix inequalities

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地面灌溉土壤入渗参数时空变异性试验研究

水土保持学报 2005年第5期19卷 120-123,151页

作者：白美健许迪李益农李久生中国水利水电科学研究院水利研究所国家节水灌溉工程技术研究中心北京100044

基于典型田块的试验观测数据,开展地面灌溉条件下冬小麦生长期间土壤入渗性能时空变异性的试验研究,描述土壤入渗参数的时空变异分布特征,分析各参数间存在的相关关系。结果表明,在冬小麦生长期内,土壤入渗参数的空间变异强度呈持续性... 详细信息

基于典型田块的试验观测数据,开展地面灌溉条件下冬小麦生长期间土壤入渗性能时空变异性的试验研究,描述土壤入渗参数的时空变异分布特征,分析各参数间存在的相关关系。结果表明,在冬小麦生长期内,土壤入渗参数的空间变异强度呈持续性减弱趋势,其时间变异性逐渐下降并趋于稳定。土壤入渗性能在冬灌后各时段间的差异并不显著,故在此后的灌溉试验设计与管理或地面灌溉模拟中,可基本无需考虑土壤入渗性能的时间变异性影响。考虑到土壤入渗参数f0和Z180之间存在着强烈的互相关性和非常相近的时空变异分布特征,可借助f0的时空变异分布特点达到描述土壤入渗性能、衡量土壤入渗能力的目的。

关键词：试验入渗地面灌溉时空变异性