子模型

By studying the relationships between the sub-problems of distribution system, a model of distribution network designing with inventory control in competitive environment is proposed, which based on discrete model of two-echelons distribution network.

深入分析了在竞争环境下分销网络中各子问题之间的关系，建立完全竞争环境下两级分销网络的设计模型，该模型是在两级分销网络离散模型的基础上，将市场竞争因素考虑在内，进一步完善分销网络的设计模型。

The model belongs to the conceptual model, and is a parameter distribution model, too.

该模型属于概念性模型，又是参数分布模型，在塔里木河各子流域的使用中，发现存在一些问题，使模型不够合理，计算精度也不理想。

The distribution of magnetic field and magnetic line of force with the finite element method was analyzed. The dynamic equations of moving part were solved coupling with the voltage balance equation. Force, displacement of moving part, current and frequency characteristic were discussed according to the numerical solution. The influence of the clearance volume and leakage was discussed as well.

运用电磁场有限元方法对直线电动机电磁场模型进行求解，分析了电动机内部的磁场和磁力线分布情况；建立了电动机动子动力学模型和驱动电路模型，得到系统的运行方程组并对其求解，根据计算结果对压缩机的驱动力、活塞行程、绕组电流和频率特性等进行了分析，同时就余隙容积和泄漏对这种微小型活塞压缩机的影响进行了探讨。

The question of searching characteristic points or straight lines on moving rigid body is decomposed into two relatively independent sub-questions. The first one is to evaluate the characteristic of points and straight lines on moving rigid body, whose mathematics model is a kind of special non-differential max-mini optimal problem with inequality constraints. By the method of Saddle-point Programming and maximum entropy, the problem can be transformed as a differential optimal problem with single objective. The second oner is to search approximative character points or straight lines on moving rigid body within design space, whose mathematic model is nonlinear and non-differential problem with multiple constraints.

本文将在运动刚体上寻找特征点或直线的优化问题分解为两个相对独立的子问题，一是对运动刚体上点或直线的特征性评定，其实质是平面曲线的圆度或直线度的评定问题，优化模型是以最大误差为最小作为优化目标的约束不可微的优化问题，本文采用鞍点规划和极大熵方法，将其转化为单目标可微优化模型；二是在设计空间内，寻找运动刚体上特征性评定指标最小的近似特征点或直线，其优化模型是非线性、多约束的不可微优化问题，本文提出用遗传算法和BFGS局部搜索法相结合来求解。

A special field equation with of Faddeev model is solved. The analytical solutions with time variable of Faddeev model are obtained by utilizing the result that the SO (3) Faddeev model is equivalent to the mesonic sector of SU (2) Skyrme model where baryon number current vanishes everywhere.

对Faddeev模型的一种特殊情况的场方程进行了求解，同时采用SO(3)Faddeev模型等效于SU(2)Skyrme模型的重子数为零的介子区域的结果，得到了此种情况下Faddeev模型的一类精确含时解析解。

SWAT model is a kind of distributed hydrologic model with the ability to evaluate the effects of landuse change on hydrologic response. This model was applied in Cao River catchment of Miyun reservoir basin. First, the sensitive parameters were identified through sensitive analysis. Then, the calibration and validation for flow and sediment were performed from 1986 to 1991 at Xiahui gaging station. The results of model evaluation show that the streamflow was simulated excellently, and sediment is also well simulated.

将可表征土地利用变化对水文响应影响的分布式水文模型SWAT应用于密云水库潮河子流域，对模型的敏感性进行了分析，并采用1986~1991年下会水文站数据对其径流量和泥沙负荷进行了率定和验证，模型评估结果表明该模型对径流的模拟效果非常好，对泥沙的模拟效果较好。

A single machine scheduling problem with batchs setup time depending on sequence is proposed. The math model to minimize setup times is upbuilt. An improved adaptive hybrid genetic algorithm is brought up for solving this scheduling problem. Several operators are redesigned according to the characteristic of this scheduling problem. Follow job optimization recombination crossover is advanced for transmitting the good character to the offspring. To improve the mountain climbing ability of the genetic algorithm, the mutation is replaced by a local optimization algorithm.

提出了一种具有序依赖setup time的单机器批量生产调度问题，以总的setup time最小为目标建立了该生产调度问题的数学模型，设计了一种改进的自适应混合遗传算法求解该生产调度问题，对遗传算法的交叉和变异算子均按照该调度问题的特点进行了改进，提出一种&紧后任务选优重组交叉算子&，该算子能将调度排序上的优良性状很好地遗传到下一代群体中。

This article introduces testing maturity model developed by Illinois Institute of Technology and describes the structure of TMM, behavioral characteristics of organizations at the five testing maturity model levels,the maturity goals, subgoals, also illustrates the correlation between the testing maturity model and the software capability maturity model, and authors consideration on TMM.

介绍了美国Illinois Institute of Technology开发的测试能力成熟度模型，给出TMM的结构，描述了软件组织5个测试成熟度等级的行为特征、成熟度目标和成熟度子目标，并说明测试能力成熟度模型与软件能力成熟度模型的关系，以及笔者对测试能力成熟度模型的考虑。

The operator for detecting selfs and non-selfs on the normal model is proposed, and the operators for recognizing known non-selfs and unknown non-selfs are proposed.

提出了基于正常模型的自体／异体检测算子，提出了已知异体识别算子和未知异体识别算子。

In this paper, based on the tight-binding Su-Schrieffer-Heeger model and by using a nonadiabatic molecular dynamic method, we investigated some unclear problems of polymers in details, such as polaron dynamic properties in different systems, the inelastic scattering processes of oppositely charged polarons driven by an external electric field,and the influence of electron-electron interactions on the dynamics of a charge polaron in conjugated polymers.

本论文基于一维紧束缚的Su-Schrieffer-Heeger模型，采用非绝热的分子动力学的方法，针对高分子聚合物中一些尚未清楚的问题，如极化子在不同体系中的动力学性质、正负极化子的非弹性散射过程，以及电子-电子相互作用对极化子动力学性质的影响等问题进行了较详细的研究。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐