查询词典 optimization

This paper researches the profile guided optimization in ORC compiler, improves the prefetching algorithm according to features of Alpha architecture.

在研究ORC编译器反馈式编译优化技术的基础上，针对Alpha结构的特点，对针对链式结构的反馈式数据预取进行了优化。

Based on the conception of reciprocity in set pair analysis, the index of trade-off optimization was taken as the value of a fraction, in which safety and quality are the numerators, cost and time are the denominators, and big index optimize to small index.

根据集对分析理论中的倒数型对立的概念，把安全和质量作为分子，费用和工期作为分母，把这个分式的值作为综合优化指数，指数大的优于指数小的，由此得出一种新的工程项目施工综合优化方法。

Facing the opportunity and the challenge, the company receives "victory through creativeness" as the core values, and persisted the science development and storage quantity optimization as development interaction, and take the industrial structure adjustment promotion policy as the guide, implementing "Three Norths Strategy" and "one advanced and two well developed" the company will strive for the new industrialization development by holding the historical development opportunity, by the way of business management, mechanism and technological innovation.

面对机遇和挑战，公司秉承&共创、共赢&的核心价值观，坚持科学发展观，坚持存量优化与增量发展互动，以国家产业结构调整升级政策为向导，全力实施冀东水泥&三北战略&和&一先两进&战略，抓住西部大开发的历史机遇，通过企业管理创新、机制创新、技术创新，走新型工业化发展之路。

Optimization of overlay thickness taking into account of life-cycle and one period performance is discussed with several design nomograms of optimum overlay thickness provided.

文中考虑了寿命周期和一个性能期罩面厚度的优化，给出了几个性能期最佳罩面厚度设计诺谟图。

Application of pseudo- parallel genetic algorithm in reactive power optimization .

伪并行遗传算法在无功优化中的应用。

The pseudo parallel genetic algorithm is applied to the optimization of PID controller's parameters.It overcomes the premature phenomenon that often appears in the general genetic algorithm in some extent and the convergence speed is improved.

在对PID控制器参数优化中引入了伪并行遗传算法，在一定程度上克服了常规遗传算法容易产生的&早熟&现象，收敛速度也进一步提高。

Therefore, this paper analyzes the merits and demerits of the pseudo parallel genetic algorithm and discusses the optimum possibility by using PPGA, and at last, applies it to the optimization of maintenance planning for existing bridges.

为此，分析伪并行遗传算法的优缺点，探讨用伪并行遗传算法(pseudo parallel genetic algorithm，简称PPGA)求最优桥梁维修管理计划的解的可能性，并用于桥梁维修管理计划的优化。

In this paper, the reliability analysis and reliability optimization design of automatic yarn evenness tester used in yarn lab are mainly discussed.

本文主要对纱线实验室仪器全自动条干仪进行了可靠性分析和可靠性优化设计。

Periodic fluid pulsation in aeroplane hydraulic piping could induce fluid-construction vibration and lead to fatigue damage. It is impossible to find the error sensor's optimization location because of the pressure standing wave, and the pulsation attenuation effect is not perfect when adopting pulsation attenuation at single point. For this reason, a distributed active control method of fluid pulsation was presented. To avoid stationary point in all aviation states, several fluid pulsation actuators and error pressure sensors were placed along the piping. The second fluid pulsation produced by actuators can counteract the primary pulsation brought by aviation piston pump and make the mean pulsation of whole piping minimum when adopting adaptive feed- forward control and the filtered-X least mean square algorithm.

针对飞机液压能源管路系统中的周期性流体脉动诱发流固耦合振动，导致管路疲劳损伤的问题，针对管路中存在压力驻波特性，在采用单点消振时寻找误差传感器最佳布局位置困难而引起脉动抑制效果不理想的缺点，提出了一种分布式流体脉动主动控制方法，即沿管路不同位置布置多个主动消振阀和误差压力传感器，在任意飞行阶段，避开压力驻波点，以误差压力传感器的脉动测量值为控制目标，采用一种针对周期脉动主动控制的自适应前馈控制法和多通道自适应滤波－X LMS算法，调整控制器参数，使主动消振器产生的次级脉动与管路中的初始脉动相互抵消，达到整个管路中的平均流体脉动最小的效果。

Key words〕book purchase;genetic neural network;improved genetic algorithm;optimization

关键词〕图书采购；遗传神经网络；改进遗传算法；优化设计

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。