查询词典 optimization

Optimization arithmetic of low osmose oil field network problem is presented that oil-gas gathering system, sewage dispose system, injection system, electricity system are solved in succession, and the systems are connected with variable, layout and parameter optimization are included in every son system.

给出了低渗透油田地面工程网络拓扑优化的多级分解优化算法，即顺次进行油气集输系统、污水处理系统、注水系统和供配电系统的优化，各子系统间又通过变量互相联系，每一个子系统的网络优化又分解为布局优化和参数优化。

Based on modern optimization theory and optimal control theory, this dissertation studies some questions as follows:1. The optimization model of parameter identification of three-dimensional geologic history numerical simulation, algorithm and its applicationGeologic history numerical simulation is a basic content of basin numerical simulation, and the porosity is the major parameter in the evolution and development process of oil-bearing basin. According to the sedimentation and burial mechanism, the physical and chemical principles of oil geology, the mudstone porositys non-linear parabolic partial differential equation has been established.

本文应用现代最优化及最优控制理论，对如下一些问题进行了研究： 1、三维地史数值模拟的参数辨识优化模型、算法及应用地史模拟是盆地数值模拟的一个基础性的研究内容，地层孔隙度是含油气盆地地史演化发育过程中的重要参数，根据地层沉积埋藏机理和石油地质的物理化学原理，通过引入数学物理方程概念，建立了泥岩三维孔隙度场方程，根据问题的特点，给出了方程的定解条件，对方程的动边界也给出了处理方法，并且证明了解的存在性与惟一性，在此基础上建立了以当今实测数据为拟合准则的三维地史数值模拟的参数辨识优化模型，这是一个含有二阶偏微分方程约束的泛函极值问题。

The paper proposes an algorithm based on the combination of Ant Colony Optimization and Particle Swarm Optimization for path planning.The new algorithm combines the advantages of ACO and PSO effectively and generates the distribution of the initial information for ACO by using the merits of high efficiency and concision of PSO,and then uses the advantages of parallelizability,positive feedback and solution with high accuracy of ACO to get global optimum solution.

提出了一种基于蚁群粒子群算法融合的机器人全局路径规划算法，该方法有效地结合了蚁群算法和粒子群算法的优点，利用粒子群算法的快速简洁等特点得到蚁群算法初始信息素分布；然后利用蚁群算法的并行性、正反馈性、求解精度高等优点，求得全局最优解。

Optimization back analysis is a method, which combines the method of parametric back Analysis with optimization technique, making this method more efficient.

优化反演法是结合优化技术来进行参数反演的一种方法，这种方法使反演的效率得到了很大的提高。

Structural identification ; parametric identification ; particle swarm optimization ; combinatorial optimization

结构辨识；参数辨识；粒子群优化算法；组合优化

This paper presents a method to embed the original problem into separable parametric optimization problems and proves that the optimal solutions of the original problems are in the set of solutions of separable parametric optimization problems.

本文把原问题嵌入到可分的参数规划问题中，并证明了原问题的最优解包含在可分的参数规划问题的最优解集中。然后从最优解集中挑出原问题的最优解。

The application of uniform design for the optimization of ELISA method for determining parathion in soil was investigated and compared with the regular optimization method.

以对硫磷为对象，通过与常规方法相比较，对均匀设计法在ELISA分析方法条件优化实验中应用的适用性进行了研究。

In allusion to the existing problems in bridge structure optimization design,an optimality criteria method for topology optimization of continuous structures based on solid isotropic material with penalization is proposed.

针对桥梁结构优化设计中存在的问题，而提出的一种基于密度惩罚法的连续体结构拓扑优化问题的优化准则算法，经Matlab实例试算表明，可得到满意的优化结果，因而具有一定的应用推广价值。

In this study, the 3-dimensional numerical model of unsaturated zone soil moisture is improved by coupling the modular of the infiltration water from the single ring permeameter. The improved VSF was integrated with the optimization program to produce an inverse model for soil hydraulic parameter optimization.

文章在三维非饱和带水分模拟程序VSF基础上，加入了单环入渗水流计算模块，并将改进的VSF与参数优化程序LEVMAR相耦合，构建了适用于单环入渗试验的土壤水力特征参数反演程序VSF-LEVMAR。

After that, based on the CVaR optimization model with transaction costs, we simulate smoothly the piecewise linear function in objective function separately, and obtain the continuous smooth CVaR optimization model. As an application, we explain via an example when the smooth simulation model is applied in the big scale investment portfolio choice problems, its convergence and stability has the enhancement comparing with the above linear model.

其次，在带交易费用的CVaR最优化模型的基础上，将模型目标函数进行了平滑模拟，得到连续平滑的CVaR最优化模型，并经过实例说明，对于较大规模投资组合选择问题，经过平滑模拟后的模型其解的收敛性和稳定性较之原模型的解都得到了提高。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。