性能

The average linewidth enhancement factor and the component effective linewidth enhancement factor are introduced for the performance analysis of interferometer all optical switches based on cross phase modulation of SOAs.

二、合理地选择和设定全光开关的性能参量是评价全光开关在OTDM解复用子系统中解复用性能的首要任务，本文选择全光开关中SOA平均线宽增强因子和器件有效线宽增强因子分析了基于SOA相位调制效应的干涉仪全光开关的性能。

The system performance simulation includes starting and breaking characteristics and steady-state characteristics, the results validate the rationality of the model. On above basis, the fault-operation performance of the system is simulated to demonstrate the phase redundancy speciality of multi-phase motor ;then the effect on performance of synchronous motor from damper winding is analyzed to indicate the its significance.

系统性能仿真主要包括系统起动性能，突变特性(突加负载，升频，降频等)，稳态运行性能仿真，仿真结果验证了所建立模型的合理性，在此基础上，对系统故障运行进行仿真，表明了系统相冗余特性；且分析了阻尼绕组在同步电机中的作用，说明了阻尼绕组的必要性与重要性。

The results show that the damping capacity of Zn-22%Al remains constant for ageing temperature below 80℃, the warm rolling temperature. Traces of Ce and La can improve the damping capacity of water quenched and warm rolled Zn-22%Al, and decrease the reduction of the damping capacity of Zn-22%Al during ageing at 150℃.

结果表明，经水淬后80℃温轧的Zn-22%Al合金在低于温轧温度下时效时，其阻尼性能保持稳定；微量Ce，La的加入，提高了经水淬后80℃温轧的Zn-22%Al合金的阻尼性能，减缓了经150℃时效后阻尼性能的降低。

the effect of inertia weight on particle swarm optimization is studied,on basis of which adopts four kinds of strategies of inertia weight to regulate the speed of a new quantum delta potential well based particle swarm optimization.a faster and more stabile algorithm,found by comparing the performances of four equations regulated the inertia weight,solves 0/1 knapsack problem.the result of experiment shows that the modified algorithm improves the precision of optimal solution and has a faster speed and a higher efficiency in convergence.in a word,choosing a parameter of inertia weight suitably can improve the performance of new qdpso.

摘 要：在研究惯性权重对基本pso算法影响的基础上，根据惯性权重对粒子群算法影响的特点，采用4种惯性权重策略对一种新的具有量子行为的粒子群算法的速度进行调节，比较每种算法的性能，从中找到一种新的性能更好的改进算法，将其用于求解0-1背包问题。实验结果表明较好地选择惯性权重参数对算法的性能有很大提高，该改进算法在求解0-1背包问题中具有高效性，提高了最优解的精度，同时具有较快的收敛速度。

The results show that, by plane spacing of holes in the distribution of gas diffusion layer of the fuel cell components, the performance of the higher than normal diffusion layer components battery performance because of the plane hole spacing distribution of the gas diffusion layer can improve the adoption of its liquid water, and improve the passage of air, thereby improving battery performance.

结果表明，由平面内孔隙率间隔分布的气体扩散层组成的燃料电池，其性能高于由普通扩散层组成电池的性能，因为平面内孔隙率间隔分布的气体扩散层都能够提高其液态水的通过能力，提高气体的通过能力，从而提高电池的性能。

Alkyl diphenyl ether disulfonate is a serie of anionic surfactants with many functions. It has two hydrophilic head groups and different from conventional surfactants.

烷基二苯醚二磺酸钠是一类在结构和性能上有别于传统表面活性剂的多功能性双亲水基型阴离子表面活性剂，具有卓越的表面化学性能及应用性能。

In this paper, on full automatic production condition, parameters of on-line sand testing system and double-disk cooler were optimized, and moulding-sand parameters of clay content, permeability, compactibility, and so on, were adjusted and optimized, and moulding-sand property parameters' control on full automatic production condition was also involved. The results can supply some reference for other similar production.

本文着重介绍了全自动生产条件下在线型砂性能检测控制仪、双盘冷却器控制参数的优化，结合生产铸件对型砂性能的实际要求，对型砂含泥量、透气性、紧实率等参数进行的调整和优化，以及全自动生产条件下砂处理工艺参数的控制范围和控制方法，本文可为相似生产条件下砂处理系统的调试和型砂性能控制提供一些参考。

High load high temperature resistant, good performance, and braking stability, mud in winter and bad conditions, the disc brake driving drum brake easier than in a relatively short period of time to stop the car Can collapse in vehicle principls shrinkage occurs when the frontal impact crushing forward, to ensure the shrinkage crew chest from harm CAE simulation technology for application of the original design, the change process, CAE analysis method and combining with engineering design, analysis and design, CAE and the integration of CAD most of the vehicle in the design phase problems can be resolved through simulation, can be in concept design phase is accurately forecast and control components and vehicle performance and reliability, thus in the development initial can make the future product performance and structure index guaranteed.

高负载时耐高温性能好，制动效果稳定，而且不怕泥水侵袭，在冬季和恶劣路况下行车，盘式制动比鼓式制动更容易在较短的时间内令车停下可溃缩式转向柱会在车辆发生正面碰撞的时候向前溃缩，以保证乘员胸部免受伤害 CAE仿真技术进行的全面应用，改变了原来的设计方法和流程，CAE分析和工程设计紧密结合，实现了分析与设计同步、CAE与CAD的一体化使车辆的大多数问题都可以在设计阶段通过仿真得到解决，可以在概念设计阶段就精确地预测和控制零部件乃至整车的性能和结构可靠性，从而在开发初期就能使未来产品性能和结构指标得到保证。

Ericsson cycle provides the maximum efficiency at a certain temperature ratio, and the performance of any other thermodynamic cycle can be got by revising the performance of Ericsson cycle with component-perfection coefficients and cycleperfection coefficient.

该公式有很强的功能，可以估算循环的热效率、比功、水气比、极限效率、各设备性能对循环性能的影响以及采用再热手段后循环的性能，而且具有很高的精度，热效率与精确计算相比相对误差在0.5％以内。

The designed formulae for solidification of actinide s were given, and the properties of the waste form, like physical properties, durability properties and irradiation properties, were evaluated.

研究了富钙钛锆石型和富烧绿石型两种人造岩石固化体包容锕系核素的配方设计和固化产品的鉴定评价，包括物理性能、抗浸出性能和耐辐照性能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。