查询词典 theory model

This strategy follows the route from actual object modeling to model hypostatization. It adopts composite model of mathematical optimization and simulation. And the relevant theory and methods presented in this dissertation as well as the decision-making methods (e. g. fuzzy synthetic evolution) are put into use comprehensively.

它按照从实物模型化到模型实物化的求解路线，采用数学优化和仿真的复合模型，在人机合作的思想指导下，综合利用了本文提出的相关理论、方法以及模糊综合评判等方案评价手段。

Achievements which are achieved by scientific research of predecessors are summarized. Some methods of how to generate self-similar process and a few means of estimating self-similar parameter are given. Self-similar traffics are generated by using of ON/OFF model with heavy-tailed distribution and results are given. The results of experiment accord with the theory. This identicalness indicates that the method of getting results by using of ON/OFF model is feasible.

本文总结了前人的研究成果，给出了几种常见产生自相似的方法和几种估计自相似参数的方法，并对ON/OFF模型叠加产生自相似业务进行了仿真实验，得到了实验结果，从实验结果可以看出，仿真结果和理论值比较接近，这说明利用ON/OFF模型叠加产生自相似业务是可行的。

By employing blur synthesizing score to assess the effect the influencing factors give to the traffic states, a congregate of scenes was established to describe the incredibility of traveling time in the transporting web and then the optimal solution of this model was calculated by taking advantage of a model of absolute and relative reliable path finding designed by Minimax theory, choosing a reliable path from jumping-off point to destination and making use of a arithmetic based upon dynamic programming. By so doing, the reliable path to the target could be grabbled when emergency erupted, this would lessen the complexity of how to resolve the proposition of transportation scheduling of relief commodity.

通过对以上问题的研究，可以帮助应急物资保障人员构建出一个可以在突发事件爆发后快速、高效地保障救援物资供应的应急物流系统，为物资运输搜索可靠路径，设计最小化时间与成本物资运输与车辆调度方案，为突(来源：AB71b0C论文网www.abclunwen.com)然爆发的灾难提供有效、实用的应对方案与决策模型。

The paper introduced the basic concept and theory of model analysis and structure dynamic analysis;performed the model analysis of the whole framework of hydraulic pressure and calculated the first ten-rank inherency frequency and corresponding vibratory-type;analyzed and estimated the first three-rank inherency frequency and corresponding vibratory-type of hydraulic pressure.

对液压机的整体机架进行有限元模态分析，得到了机架的前十阶固有频率和相应的固有振型，并对前三阶固有频率和振型进行了详尽的分析和评价。

Finally, apply the model to the wave calculation of a project area in northern Jiangsu Province. The results indicate the favorable inosculation with theoretical and practical values. The distribution of wave field is reasonable and basically unanimous with the results of adopting other models on wave calculation, which has proved the correctness of this model in theory and the practicability on engineering.

最后将模型应用于苏北某地的工程区域的波浪计算，计算得到的波浪场分布合理，波浪要素数值上与采用其他波浪模型所得的结果基本一致，说明了本文所建立的模型和计算方法在理论上是正确的，在工程上实用。

The paper introduces an improved harmonic and reactive current detecting method based on there-phase reactive current using instantaneous reactive power theory. By using matlab, simulation model is built, and the results show that this model can exactly detect harmonic and reactive current in time and it is feasible in DSP system.

本文在三相瞬时无功功率理论的基础提出了一种改进的单相无功电流检测算法，并建立了仿真模型，仿真结果表明：该算法可以及时、准确地检测出三相电路中的谐波电流和无功电流，同时也验证了此算法在DSP系统中的可行性。

Based on the compensate admittance model of Steinmetz theory a method is put forward which use instantaneous values of load current and voltage to denote it. The simulations and practical application in the design of SVC model have shown that the proposed method is very effective, accurate, and with fast response performance.

本文基于不平衡负荷的平衡化原理(即Steinmetz原理)的补偿导纳模型，采用负荷电流电压瞬时值采样的方法补偿无功功率，并将该方法应用于SVC样机的设计，结果表明，它们是快速有效和准确的，具有实际的工程应用价值。

In this paper,ecology theory was used to investigate the structure and evolution of interagency information sharing system of E-Government,and both structure model and evolution model for this system were proposed.

本文运用生态学的理论和方法，考察了电子政府部门间信息共享系统的结构和进化方式，提出了电子政府部门间信息共享生态系统的结构模型和进化模型。

In order to investigate the variation of controllability and observability affected by network scheduling,the model of scheduling for Networked Control System is established,which has communication constraint on its input and output channel.Utilizing communication sequence to express the scheduling of channel,the model can be transformed into discrete-time switch system.Under static scheduling,using the theory of recursive invariant subspace and its character,a necessary and sufficient condition of NC...

为了研究网络调度对能控性与能观性的影响，对输入、输出通道都存在通信约束的网络控制系统的调度进行建模；利用通信序列表示通道的调度情况，最终将模型转化为离散切换系统；在静态调度下，利用循环不变子空间理论及其相关的性质，给出了网络控制系统能控性、能观性成立的充要条件，并给出了原有控制系统与经网络静态调度后的系统之间能控性、能观性的关系；最后用仿真实例说明了所提结论的正确性。

ABSTRACT A robust control system design method via model reference and inverse system theory is presented in this paper,and compared with the model reference adaptive approach and the inverse system design method.

摘 要 给出了一种基于模型参考最优化方法和逆系统设计方法的鲁棒控制系统设计方法，并将其同模型参考自适应方法和逆系统方法进行了比较。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。