快速通过

PSO is a population-based optimization algorithm, which mimics the social behavior of animals in a flock. It makes use of individual and group memory to update each particle position allowing global and local search optimization. The objective function considered was the total weight of the structure subjected to stresses, displacements and forces constraints. The effects of the parameters were investigated as well and such combination of tuning parameters promote a better global search behavior avoiding premature convergence while rapidly converging to the optimal solution. Results showed the effectiveness of the proposed method by comparing with ANSYS Design Optimization Tool (zero-order method). The PSO with the tuning parameters makes it an ideal method for offshore wind turbines foundations optimization tasks.(2) A reliability analysis method for pile foundation bearing axial loads based PSOThe performance function of pile foundation's axially bearing capacity sometimes is nonlinear and complex, on the basis of geometric meaning of structural reliability index, an optimum model with PSO for structural reliability analysis under arbitrary random variables was established, The PSO algorithm is very efficient to solve global optimization problemsIts use in structural reliability field presents not only the advantage of its facility of implementation, but also the possibility to obtain the design point and the failure probability with a good accuracy. In addition, PSO is a zero order algorithm, for no derivative is necessary for its implementation.

本文的研究针对桩式海上风机基础结构的特点，在国内外有关研究成果的基础上对海上风机基础结构优化设计理论和可靠度方法一些相关问题进行了较为深入的研究，具体做了以下几个方面的工作：(1)基于粒子群优化的桩式海上风机基础确定性优化设计方法桩式海上风机基础的优化设计是一个复杂的、非线性约束的优化问题，针对传统的基于梯度信息的优化方法在处理非线性问题中易陷入局部最优解的问题，本文将一种耦合惩罚函数的PSO算法引入到海上风机基础结构概念设计中，PSO算法是从群体动物聚集觅食这一活动中受到启发而发展的，该算法利用个体和群体的信息共享不断改进自身的位置从而进行局部和全局最优搜索，本文中以桩和三脚架连接段直径及壁厚为设计变量，以基础总重量作为优化的目标函数，在给定的约束条件下建立了三脚架基础优化数学模型，另外本文还研究了PSO参数变化对结果的影响，协调的参数组合可以避免陷入早熟收敛而能够快速的获得全局的最优解，通过与ANSYS优化模块的计算结果比较验证了该方法的有效性，本方法为海上风机基础的确定性设计提供了一条有效的途径。

The study reveals that the convolute bedding is genetically related to rapid deposition and wave-shaking.

通过研究发现，它们的成因与相对静水条件下快速沉积和波浪震荡引起沉积物泄水，形成密度倒置、重力失稳，最后导致发育底辟变形有关。

By removing the male from his lookout, crawfish, fish, and newts will quickly consume the unguarded eggs.

通过从他的了望台中删除该男子淡水小龙虾、鱼和 newts 将快速使用安全的鸡蛋。

The method was proposed to compensate the residual cumulative error in the project, and the optical frequency multiplication effect on residual cumulative error is analyzed, and the model of laser heterodyne interferometric fast ultra-precision measurement is proposed.

为实现激光外差干涉快速超精密测量，通过分析测量棱镜三维运动对激光多普勒频移的影响，针对传统激光外差干涉测量模型存在的原理性残余累计误差，而且误差存在累计现象，提出了在工程中补偿残余累计误差的方法。

Relying on the self-produced bottom cloth and the authority of dealing with import and export business ourselues,we constantly push up new flocking articles in response to the demand of domestic and overseas customers,especially"elephant skin" flocking cloth is exclusive in China,whick once won gold cup as Chinese new textile product.

近几年来，本厂依托集团自产植绒底布和具有自营进出口经营权的优势，不断快速推出符合国内外客户要求的植绒新品，其中"大象皮"植绒布为国内首创，产品通过日本环保测试并远销日本、香港、欧美市场，曾荣获"中国纺织新产品"金奖，二零零一年四月，在全国静电植绒产品展示会上，本厂选送的产品获得评委的一致好评，并被授予全国静电植绒优秀产品奖。

Finally by analyzing the measured data, it is shown that this method can detect the currents efficiently and effectively.

最后通过对实测数据的分析表明文中的方法可以快速有效地进行洋流方位探测。

Through the rapid cooling can reduce the operating cycle time, improve production efficiency and product quality.

通过快速冷却可以缩短作业循环时间，提高生产效率和产品的质量。

Moreover, by introducing memory function and vaccine inoculation mechanism of immune system, at the same time, DECA can converge to the optimal solution rapidly and stably.

通过改进的遗传策略来优化染色体长度，实现对聚类个数进行全局寻优，利用FCM算法加快聚类中心参数的收敛；并引入免疫系统的记忆功能和疫苗接种机理，使算法能快速稳定地收敛到最优解。

Sludge activation phase, acclimatization phase and aerobic granulation phase. In operation control, the settling-time was used as the key factor for the formation of aerobic granules, which could decant the flocculent sludge and regulate the organic loading, and eventually promote the granulation process.

在运行控制过程中通过将沉降时间作为培养好氧颗粒污泥的一个关键控制参数，它既可以去除反应器中沉降性差的污泥还可以在短时间内调节反应器中的运行负荷，从而促进反应器中好氧污泥快速实现颗粒化。

It has offered the advanced information processing function, has decision support systems.

通过这样的系统，可以做到信息的规范管理、需求统计和快速查询，从而减少在管理方面的工作量。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。