查询词典 selection

The dissertation in depth analyzes the inner relationship between hedging and risk diversification, finds out that the relevance among prices or returns of different assets is the common basis for hedging and portfolio selection,and presents the notion of hedging portfolio selection referring to portfolio selection theory,which means that hedgers choose optimal hedging portfolio from a set of feasible hedging tools considering risky elements and hedger\'s real requirements during the course of hedging.

本文深入分析了套期保值与风险分散化思想的内在联系，指出资产之间价格的相关性是套期保值问题和资产组合选择问题的共同基础，提出应该在真正的资产组合选择理论意义上研究套期保值问题的研究思路，即在充分考虑套期保值过程中各种风险因素和套期保值者实际要求的基础上从可供选择的套期保值工具集合中选择最优套期保值组合，并称这种研究套期保值的方法为套期保值组合选择。

Natural selection was expected to work very slowly in forming new species, but given the effectiveness of artificial selection, he could "see no limit to the amount of change, to the beauty and infinite complexity of the coadaptations between all organic beings, one with another and with their physical conditions of life, which may be effected in the long course of time by nature's power of selection".

预计在形成新物种上，自然选择起效非常缓慢；但考虑到人工选择的有效性，他可以"设想到变化的数量是无限的，美丽是没有限度的；所有有机生命之间的互相适应的复杂性是无限的，彼此之间的相互适应以及它们生活状况之间的相互适应是无限复杂的，这些都可能在很长的时间里受到自然力量选择的影响"。

At first, in this paper the national and international literature of team and team motivation is summarized. Secondly, based on the analysis of theoretical scientific research personnel and team, the teamwork motivation model is built, and it is achieved that teamwork improves the team output. Later,we lead the reputation that is regarded inexplicit incentive into the scientific research personnel"s utility function, establish a model of their reward, analyze the parameter of reputation"s effect to factor in the contract. After that, it analyses traditional training object selection and whole training object selection among the scientific research team to draw the conclusion that the traditional training object selection has obvious limitations and the whole training has evident advantages. In the end, based on the theoretical study of the psychological contract, we can obtain the effective paths of forming psychological contract among the scientific research team.

本文首先对团队和团队激励方面国内外的文献进行了详尽的综述；其次，在对科研人员及科研团队理论分析的基础上，建立了适合科研团队激励机制的基于团队合作的激励模型，得出成员间互相合作将提高科研团队的产出；然后，将声誉效应和职业生涯时间引入科研团队成员报酬契约，建立了科研团队成员的报酬激励模型，分析声誉系数和职业生涯时间对契约中各要素的影响；接着，通过博弈论知识分析了科研团队培训对象选拔制度，得出以下结论：传统培训对象选拔制度在以团队为主的组织中存在着明显的局限性，全员培训制度具有明显的优势；最后，在对心理契约理论研究的基础上，得出了缔结科研团队心理契约的途径。

And then studies on the relevant theories of distribution centers to let everyone know comprehensively, including the concept of logistics and distribution, the concept and development process of distribution center, the classification and function of distribution center, as well as its role. Lately it gives detailed description on the relevant theories of location selection, including the principle and influencing factors of location selection, as well as the steps and general methods of location selection. Finally the paper sums up several methods commonly used at present.

更多配送的概念、配送中心的概念及发展过程、配送中心的分类、功能及其作用；然后研究了配送中心选址的相关理论，包括配送中心的选址原则、影响因素、选址步骤以及配送中心选址的一般方法等部分；最后总结了目前几种常用的选址方法，并在这些理论的基础上，建立了非线性混合0-1规划类型的多配送中心选址模型。

The paper firstly introduces the background, the present situation and meaning of the research on the embedded system. The research of key technologies of embedded ethernet remote measure and control system is carried out in this paper. Then the author detailedly illustrates the design process of hardware and software of the embedded remote measure and control system. The design process includes the selection and configuration of the 32-bit microprocessor, the selection of the memorizer, the selection and software design of the Ethernet Controller, the realization of AD data acquisition model and DA converter model.

本文论述了嵌入式系统的研究背景、研究现状及研究意义，对基于嵌入式技术的以太网远程测控系统关键技术进行了研究，详细介绍了系统的软硬件设计过程，包括32位微处理器的选择与配置、存储器的选择、网络控制器的选择及软件设计、AD采样模块与DA数模转换模块等外围电路的实现。

At first, the existence of extended form of approach to continuous selection for any set valued mapping without any continuity restriction in para-compact metric space is proved ;by the topologically separated mappings , the approximate selection theorem of sub-lower-semi-continuous mapping is established, furthermore , continuous selection problem in H-space is studied. Next, with W-correspondence, an improved variational inequality is obtained ; by the H-KKM mapping ,Ky Fan\'s minimax inequality is generalized to H-space . At last, with H-convexity instead of the linear topological structure, a new version of Browder fixed point theorem is established.Chapter 3 deals with set-valued mapping vector variational inequality and minimax problems.

第二章首先在仿紧的度量空间上对任意的集值映射建立了新的逼近连续选择定理，利用映射的拓扑可分性，在H-空间上建立了次下半连续映射的逼近连续选择定理和一个新的连续选择定理；然后利用W-对应，在H-空间上建立了广义的变分不等式；利用H-KKM映射，在H-空间上建立了广义的KyFan极小极大不等式；最后，利用H-凸性代替拓扑线性结构，在H-空间上建立了一个新型的Browder不动点定理。

Do the system research in the choice method of route scheme, putting forward principles, steps, procedure and the method of ecology route selection and the security route selection. This prides a powerful tool for designers in route selection process to reasonable correspond to each kind of influence factor and the solution of design principal contradiction.

系统研究了路线方案选择方法，提出了生态选线和安全选线的原则、步骤、程序和方法，为设计人员在选线过程中合理协调各种影响因素、解决设计主要矛盾提供了有力的工具。

Lesson 6 Connections READING SELECTION A:The Weird Would of Tobacco READING SELECTION B:Drunk Driver''s Ed Unit Three Techniques for Remembering What You Read Lesson 7 Improving Your Concentration READING SELECTION A:The Civil War:Repressible or Irrepressibe?

第6课连接阅读选择答：奇怪烟草会阅读选择乙：醉Driver'的埃德三单元技术的怀念你所读的第7课改善您的浓度阅读选择答：内战：阻遏或Irrepressibe？

In this paper, we present an access cell selection approach, which is based on cell sojourn time estimation. The approach selects access cell according to the cell sojourn time estimated. Compared with residual dwell time approach and power level offset approach, our access cell selection approach has a much smaller probabfiity of erroneous access cell selection, thus a better performance.

在本文中，我们提出了一种基于移动台小区驻留时间估计的接入层次选择方法，这种方法依据移动台在小区中的驻留时间估计值来进行接入层次选择，与剩余驻留时间方法与功率小区偏移方法相比，其小区选择错误概率明显要低，具有较好的性能。

In this article, the author introduces features of urban large-span bridge s, and discusses some problems of urban large-span bridge s, for example, structure selection, position selection, cross section layout, structural safety reservation, construction monitoring, subsidiary facilities, bridge aesthetics and selection of relevant standards and so on.

论述了城市大跨径桥梁的特点，就城市大跨径桥梁设计中的结构选型、桥址的选择、宽桥横断面布置、结构安全储备和施工监控、附属设施的考虑、桥梁美学和有关规范的选用等问题，进行了较深入的探索，并对我国城市大跨径桥梁的设计和建设提出有关建议。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。