查询词典 dynamic

The conclusion is:multiobjective programming and fuzzy programming are superior to the traditional Markowitz model,compart:s the dynamic models with the static models,the former can reponse more soon to the wave of the stock price,so we can adjust period by period based on the dynamic models.

本文得出的结论是：多目标规划及模糊规划等方法优于传统的马柯维茨模型，在实证检验中表现出更高的投资效率，动态的模型与静态的模型相比，能更快地对股价波动作出反应，可进行逐期调整。

Based on the acquisition –processing-abstraction of data, the structures an quantities of land use/cover change, the change of degree, the land use/cover dynamic degree and the index of the land use/cover dynamic degree were researched and analyzed comprehensibly in two different periodes(1990-1999,1999-2002) and sum up the conclusion.

结构变化不明显。水域、居民地、耕地动态度比较大，变化较为剧烈；未利用地动态度最小，变化缓慢。1990-2002年间水域、居民地、耕地与其他土地利用/覆盖类型间相互转化面积差额较大，转入面积大于转出面积，即在相互频繁转换同时单边转入明显；林地、草地、未利用地与其他土地利用/覆盖类型间相互转化面积差额不大，处于一种动态均衡状态。

This paper introduces the situation of dynamic simulation of power system, design of power distribution system dynamic simulation based on COM and a multilayer digital control network method based on PLC, which uses digital technology nested of the tradition analog cyanic control method.

介绍了基于COM分布式电力系统动态模拟技术和基于PLC多层数字控制网络电力系统动态模拟控制技术的基本结构和技术要点。

Hydraulic forces applied on the agitator are simplified as a main moment and a main force on the agitating shaft, Initial decentration of agitator is determined based on the balance standard. The dynamic responses, such as fluctuating bending stresses and dynamic deflections, of the agitating shaft under no-liquid and normal working conditions are studied.

将搅拌器上的流体作用力简化为一个主矩和主矢；为考虑作用在搅拌轴上的惯性力效应，根据平衡精度预设搅拌器的初始偏心；在转子动力学软件ROTOR中建立搅拌轴的梁盘模型，分别计算了搅拌轴在空载和搅拌工况下的动力响应，并进一步讨论了动力响应与工作转速、轴径和轴长的关系。

In this paper along with require of campus security system,Campus network system should be a system of dynamic defense,both dynamic and static,passive as well as active,combined with management and technology.Based on such a concept.the author has developed an all-round,multi-level model of network security system with different defendable capabilities,,which covers the whole campus.

本文针对校园网的安全系统的需求，进行了深入的研究与分析，按照建立的校园网网络安全应该是动态防护体系，是动态加静态的防御；是被动加主动的防御，是管理加技术的完整安全观念，提出了一个能覆盖整个校园网络的全方位、各个层次、多种防御手段的网络安全实现模型。

Furthermore, the data of falling weight deflectometer and the system identification method are jointly used in conjunction with the proposed procedure for estimating material properties from responses of multi-slabs on foundation. The analysis is based on quasi-static linear elastic, dynamic frequency domain fitting and dynamic time domain fitting.

然后，将落锤式弯沉仪所记录的输入和输出值时程曲线，根据系统识别原理和灵敏度分析理论，建立材料参数的拟静力反演分析方法、频域反演分析方法和时域反演分析方法。

At the same time, the evaluations of pavement performance with FWD are researched based on the backcalculation results. We also analyse the mathematical basic of the solvability conditions for inverse problems, the dynamic problems of pavement and the dynamic backcalculation of subgrade modulus of PFWD (Portable Falling Weight Deflectometer).

同时，采用模量反算结果进行了FWD评价路面性能的应用研究，分析了反问题有解存在的数学基础，探讨了路面动力分析问题，并对PFWD的路基模量动力反算问题进行了研究。

Results show that ascorbic acid and dehydroascorbic acid of cloudy strawberry juice in the storage process are unstable to the heat treatment; the degradation of ascorbic acid and dehydroascorbic acid accords with first-order dynamic, which indicates that this degeneration dynamic model is logical and effective, and can be used in selection of storing temperature and prediction of storage period at different temperatures.

结果表明：草莓浑浊汁在贮藏过程中还原型维生素C和氧化型维生素C对热不稳定，还原型维生素C和氧化型维生素C降解符合一级反应动力学。经过验证表明该降解动力学模型有效，可用于草莓浑浊汁贮藏温度的选择和预测不同温度下的贮藏期。

With this fracture model, some important results are obtained for composite thin-walled circular tubes under axial compression; the calculation of the critical delaminate load is gained based on the linear elastic analysis As for the dynamic loading, this delaminated model modified in depth by introducing a dynamic factor will be helpful.

利用该模型本文得到一些重要的结论，并给出压缩载荷临界判据。利用该模型研究复合材料圆管的轴向压缩承载行为，为后继动力轴向压缩问题的研究奠定基础。

However, we don"t find neither the economies of scale nor the diseconomies of scale in the investment banking industry. What"s more, the scope of Chinese investment banks is too narrow and the income relies on the traditional deals too much, which makes the industry far from the economies of scope.The dissertation starts from restrict-pricing model of Spence and Bain-Sylos and analyzes the mechanism of the strategy of excessive production capacity. And based on the extended dynamic game theory of Dixit the dissertation establishes the dynamic game theory model of capital promise and entry deterrence. The dissertationillustrates the essence of scale strategy of Chinese investment banking industry: Firstly domestic investment banks should optimize the capital structure and the scale expansion by proper financing arrangement.

本文对我国投资银行业的产业绩效进行了实证检验：市场结构、行业规模以及市场总体收益率对行业的利润率具有很强的解释能力，从影响的相对水平来看，集中度的影响要大于市场收益的影响，同时，规模的影响与集中度、市场收益的影响相反；同时，基于规模经济的横截面分析表明，我国投资银行业的经济规模与其绩效之间还不存在明显的关系；而且，我国投资银行业总体上经营范围狭窄，业务内涵单一，在收入构成上过分依赖于传统的三大业务，也远远没有发挥出行业的范围经济优势。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。