查询词典 constrained optimization

Nevertheless, induced bilevel programming models for the former category usually belong to a subject of nondifferentiable optimization problems, whereas that for the latter category becomes the continuously differentiable optimization problems.

此文首先从模型和算法的角度总结了有关这类问题已有的研究成果，接着介绍有关这方面的最新的研究进展，即如何把用户基于平衡原则下的交通网络优化问题的双层规划模型统一地转换为一个连续可微的单层最优化问题，并设计统一的算法。

As the shape optimization design of structural element sections belong to structural optimization,which has its own traits such as discreteness, nondifferentiable and non-convexity,while the traditional optimal methods are not applicable.

结构截面形状优化设计属于工程结构优化问题，由于工程结构优化问题具有离散性、不可微性和非凸性等特点，而传统的优化算法对所优化的问题往往要求连续、可微、非凹等前提条件，所以已不再适合用于工程结构优化问题的求解。

Therefore based on analysis of the status quo and the bottleneck points of the drilling and completion, effective measures have been put forward, including optimization of casing program, application of UBD and compound drilling, adoption of nonpermeable drilling fluid, diverting technology, rotating while cementing, casing optimization, horizontal drilling and extended reach well technology, etc.

为解决上述问题，在对钻井完井现状和难点进行分析的基础上，提出了有效的应对措施，主要包括优化井身结构，推广应用欠平衡钻井和复合钻井技术，采用非渗透钻井液、屏蔽暂堵技术和旋转固井技术，优选套管射孔完井，开展水平井和大位移井钻井工艺等。

Miscellaneous systems result in the problems of nonsynchronous information,dispersed management,low efficiency etc.,even the optimization of each system can not attain the optimization of whole essentially.

系统的繁杂带来了系统之间信息不同步、管理散乱、效率低下等问题，即使各个系统的最优也并不一定能达到整体最优。

Among the methods of on-line optimization of basic control param eters,global optimization is an advanced technology.

针对一定的测试规范进行控制参数的全局优化是一种先进的思想。

It is preliminarily discussed that the concept of fuzzy optimization is introduced into optimization design of tire structure.

对在轮胎结构优化设计中引入模糊优化的概念进行了初步探讨。

In this paper,with an integrated operational amplifier XD1531 taken as an example, the strategies and methods of multiobjective optimization of IC's are given.A sequential asynchronous multiobjective optimization algorithm is suggested with yield maximal ap- proximation function as a single objective function.

本文以集成通用运算放大器 XD1531为例，给出了集成电路多目标最优化设计的策略和方法，提出了将成品率极大逼近函数作为目标，采用序列异步多目标最优化方法。

It discusses the forming of the competitive advantage, cost advantage and diversity advantage of the enterprise under the management of the value chain, as well as the operation chain-the basis of the value chain. From the angle of the combination of funds flow, value flow and information flow, the article also researchs the cost of the enterprise operation and its motivation, which lay a foundation for the optimization of the operation chain and the reducement of the operation cost together with the realization of the optimization of the inner value chain of the enterprise.

本论文从企业竞争战略的视角，对企业竞争战略与企业价值链进行系统分析和深入研究，探讨价值链管理环境下企业竞争优势的形成，研究价值链环境下的企业成本优势和差异化优势，对构成价值链的基础——&作业链&进行分析；从资金流、价值流和信息流有机结合的系统观点，研究企业的作业成本，对企业成本动因从战略层面上进行分析，为优化企业&作业链&，降低作业成本，实现企业内部价值链优化奠定了基础。

Thismethod can resolve the near-far problem, and make the system need lower request forthe power control. So we can utilize the uplink frequency spectrum resourcesefficiently and enlarge the system capacity saliently. In 1995, Eberhart and Kennedy reported that the particle swarm optimization algorithm was a parallel optimization.

粒子群优化算法是1995 年由美国的Eberhart 和Kennedy 提出的是一种高效的并行优化算法，简单容易实现同时又有深刻的智能背景，一经提出立刻引起了演化计算等领域的学者们的广泛关注，并在短短几年时间里出现大量的研究成果形成了一个研究热点。

By use of double objective optimization method, that is, for maximal accelerate of sley sword minimizing and coefficient of speed rate of sley sword traveling maximizing, mathematics model of the fuzzy optimization design of the four-link weft beat-up mechanism is set up.

设计更好地符合客观实际的四连杆打纬机构，在充分考虑各设计参数的模糊性的基础上，根据模糊方法学的基本理论提出一种模糊优化设计方法，采用使筘座的最大加速度最小，同时使筘座的行程速比系数最大的多目标优化方法，建立了该问题的模糊优化设计的数学模型，并对实例进行了计算与分析，获得最优的综合性能。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。