非线性系统的高增益滑模输出跟踪

Extension strategy-tactics-planning (ESTP), based upon the science of Extenics, is established for the purpose of solving contradictory problems. In this paper, the fundamental thoughts, theories and methods of ESTP are introduced concisely. The highlights of ESTP are that the techniques, used in the case of tackling such problems as how to generate the ideas of strategy-tactics-planning, how to completely analyze the resources, how to exploit extension resources, how to transfer the incompatible into the compati-ble, and how to transfer the opposite into the co-existent, are developed in a formalized way. And regarding the practices of ESTP, the applications of ESTP in resource integration, project, market development, and the prevention and handling crises are presented.     

Interaction between in situ stress states and tectonic faults:A comment

Understanding the in situ stress state is crucial in many engineering problems and earth science research.The present article presents new insights into the interaction mechanism between the stress state and faults.In situ stresses can be influenced by various factors,one of the most important being the existence of faults.A fault could significantly affect the value and direction of the stress components.Reorientation and magnitude changes in stresses exist adjacent to faults and stress jumps/d...     

Obtain the optimal of logistics delivery network with annealing algorithm

Simulated annealing （SA） algorithm is a heuristic algorithm, proposed one approximation algorithm of solving optimization combinatorial problems inspired by objects in the annealing process of heating crunch. The al- gorithm is superior to the traditional greedy algorithm, which avoids falling into local optimum and reaches global optimum. There are often some problems to find the shortest path, etc in the logistics and distribution network, and we need optimization for logistics and distribution path in order to achieve the shortest, best, most economi- cal, and so on. The paper uses an example of SA algorithm validation to verify it, and the method is proved to be feasible.     

Assessing the meridional atmosphere and ocean energy transport in a varying climate

Assessing the meridional atmosphere and ocean energy transport is one of the most classical problems in climate research.The meridional energy transport plays a critical role in maintaining the equilibrium of the earth system.Although the principle to calculate the meridional energy transport is simple,many fundamental questions remain unsolved.For example,what are the intrinsic mechanisms to maintain the hemispherically antisymmetric structure in the total energy transport? How on earth does the meridional energy transport partition between the atmosphere and ocean and,is there really a so-called "Bjerknes compensation" relationship between them? This relationship would provide us deep insight into the coupling mechanisms between the ocean and atmosphere in global scale.In this review we try to come out some important problems that are deserved in-depth investigations in current climate studies.     

An extended Lagrangian support vector machine for classifications

Lagrangian support vector machine (LSVM) cannot solve large problems for nonlinear kernel classifiers. In order to extend the LSVM to solve very large problems, an extended Lagrangian support vector machine (ELSVM) for classifications based on LSVM and SVMlight is presented in this paper. Our idea for the ELSVM is to divide a large quadratic programming problem into a series of subproblems with small size and to solve them via LSVM. Since the LSVM can solve small and medium problems for nonlinear kernel classifiers, the proposed ELSVM can be used to handle large problems very efficiently. Numerical experiments on different types of problems are performed to demonstrate the high efficiency of the ELSVM.     

Characteristics of U-pattern distribution of highconcentration ^210pb in surface air at central Guizhou, China

In recent thirty years, with deep-going studies of the problems of regional environmental quality and global climate change, 210Pb has been found to have wide appli-cations in tracing the aquatic sedimentation, catchment’s erosion and the path of atmospheric transfer. 222Rn pro-duced from decay of the U-Ra series in surface rocks and soils diffuses in the atmosphere and continues to decay into 210Pb. This part of the 210Pb, due to separation from its parent 226Ra, is generally referred to a…     

A Review of the Semantic nterpretation of Bare Noun Phrases

Bare noun phrases are difined as noun phrases without determiners.Since Carlson(1977),bare noun phrases,as a special category of noun phrases have been arousing great interest in the field of linguistics.A lot of studies have been conducted by scholars both home and abroad.Opinions can be achieved into different approaches.This present paper summarizes the accomplishment in the semantic interpretation of bare noun phrases in languages,esp in English and Chinese in order to provide a general introduction to the problems related to and the research prospect of bare noun phrases.     

Ant System Algorithm Research and Its Applications

In this paper, systematic review on Ant System (AS) algorithm research and application is made, and the authors works of introducing As algorithm into continuous space application are summarized. Then the applicability characters of AS in continuous space optimization problems are also discussed.     

Exploration on ecological regulation of the reservoirs

Reservoir regulation process in the Yangtze River basin is mainly divided into two types of flood regulation and initiating benefit regulation. The present reservoir management system and operation mode are mainly for dealing with or coordinating of flood control and benefit initiation as well as benefit distribution among various beneficial functions. From the view point of river ecosystem protection, the current regulation mode has two kinds of problems ： firstly, most of the reservoir regulation plans do not consider ecosystem protection at downstream of dams and needs of environment protection in reservoir areas; secondly, integrated regulation or management of water resources is ignored. It is very necessary to improve reservoir regulation mode, bearing problems faced by regulation of the Three Gorges reservoir and issues related to cascade development and regulation in Tuojiang and Minjiang River basins in mind. In accordance with the concept of scientific development, and the philosophy of ＂ensuring a healthy Yangtze River and promoting the harmony between human and water＂, taking flood control, benefit initiation and eco-system as a whole, this paper put forward the basic consideration to improve reservoir regulation as follows ： on the basis of requirements of ecosystem protection at downstream of dams and needs of environment protection in reservoir areas, we should bring the functions of reservoir such as flood control and benefit initiation into full play, control the negative influence to the ecosystem at downstream of dams and the environment in reservoir areas in an endurable scope, and restore the ecosystem and the environment step by step. This paper put forward the relevant regulation process aiming at the idiographic problems such as protection of ecosystem at downstream of dams and environment in reservoir areas, protection of aquatic wildlife species and fish species, regulation of sediment and protection of wetland.     

Developments in characterization of surface topography of rock joint

The approaches to characterizing the surface topography of a rock joint can be simply grouped into statistical approaches and fractal geometrical approaches. This paper reviews the developments in characterization of the surface topography of a rock joint. Moreover, several problems of the current researches are also discussed.     

分布式开放环境中的多agent合作模型

分析了动态性和不可预测性给分布式开放环境中多ａｇｅｎｔ合作带来的问题，提出了解决这些问题的一个通用多ａｇｅｎｔ合作模型。该模型说明了如何运用联合意向概念将多个ａｇｅｎｔ的个体行为统一为一集体行为，论述了如何将该合作模型映射到计算实现上－包括ａｇｅｎｔ的体系结构、多ａｇｅｎｔ合作过程以及意外事件处理过程。     

产学研合作模式新探

产学研合作模式是培养应用型人才、提高我国自主创新能力的有效途径。介绍了产学研结合的几种基本模式,指出当前产学研模式存在的问题,探讨了新探索带来的启示。     

危机孕育出的合作--析非传统安全对东亚地区合作的推动

非传统安全的特质决定了各国在该领域的关系不同于传统安全的"囚徒困境"模式,而是一种合作型的"保证博弈";从非传统安全对地区内国家合作的影响程度看,可分为危机型和危害型。东亚的非传统安全合作可分为两个阶段,亚洲金融风暴以及随后一系列危机的爆发促使该领域的合作在地区层面展开;通过对非传统安全因素促进地区合作的多层面分析,不难得出,非传统安全问题将在广泛领域推动东亚合作,而不仅仅局限在非传统安全领域。     

双并联机器人协作的运动学建模

提出并联机器人以协作的方式提高其作业能力的一个新途径·通过引入瞬时作业点的概念,将工件和刀具离散化,并用其相应坐标系上的一个向量来描述工件和刀具上的瞬时作业点,建立了协作系统中各单机间的联系,将并联机器人协作运动学问题转化成二单并联机器人在工件和刀具约束下的运动学参量的求解·建立了双并联机器人协作的等效闭链运动学模型和运动学方程式,为并联机器人协作运动学分析和控制建立了基础·通过算例证明了模型的正确性和并联机器人协作在拓展有效工作空间方面的有效性·     

校地共建与馆际合作服务一体化框架的建构——以河南科技大学图书馆为例

简要分析了豫西地区各类图书馆资源建设中存在的问题,以河南科技大学图书馆为例,探讨了校地共建与馆际合作服务一体化框架的建构。     

融资性担保公司与银行的合作分析

通过对担保公司与银行合作流程、合作利弊的分析,探讨了担保公司与银行合作产生问题的原因,提出了改善担保公司与银行合作关系的对策。     

对企业与高校合作情况的调查分析

通过调查问卷的形式对企业和高校的合作情况进行了调查,介绍了企业与高校的合作现状,分析了影响企业与高校合作的因素,探讨了企业与高校合作中存在的问题,并提出了相应的解决办法。     

具有合作关系的两级资源分配的递阶优化问题

对于整体目标函数关于下级各部门不具有可分形式的两级资源分配问题，笔者证明了下级各部门合作决策比独立决策效果更好．寻优方法为：把原问题嵌入到对应的多目标优化问题中，对于上级给定的权系数，下级各部门用原始—对偶法独立求解，再把结果送回上级以便更新权系数，这样，通过上、下级不断的交换信息最终可求得原问题的全局最优解．对于递阶系统优化理论和资源分配这一经济学实践均有参考价值     

广西与东盟高校合作办学的战略思考

对广西与东盟高校合作办学问题进行探讨,分析广西与东盟高校合作办学的现状及面临的问题,提出促进广西与东盟高校合作办学的对策。     

高职院校校企合作模式探讨

近些年高职院校在校企合作方面取得了一些进展,但也存在不少问题。针对这一问题进行了深入分析,并就如何深入开展校企合作进行了探讨,提出了校校合作可作为校企合作先导的观点。