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In order to improve the uplink bandwidth utility, that is, keeping the guard band between conterminous ONU slots as short as possible, as well as avoiding the upstream data collision, OLT must take the RTT of ONU into account, when arranges the start and ending time of ONU's transmission window.

为了提高EPON上行带宽利用率（即尽量缩短相邻ONU时隙之间的保护带长度），同时避免上行数据冲突，OLT在安排给ONU的授权窗口的开始时间和结束时间时，必须要将ONU的距离考虑在内。

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 experimental results using the testing functions show that CPSO is able to search the global optimizer and avoiding the premature convergence on the multidimensional variable space.

几种典型函数的测试结果表明：CPSO提高了对多维空间的全局搜索能力，并可以有效避免早熟现象。

A method and apparatus for a decision feedback equalizer wherein a correction term is used to compensate for slicer errors, thus avoiding error propagation.

一种用于判决反馈均衡器的方法和装置，其中使用一校正项来补偿限制器误差，从而避免了误差传播。

The equipment's failure diagnosis technique is one of the basic measures to guarantee equipments safety circulate.It can make earlier period forecast and judgement to the equipments, put forward the counterplot for avoiding or reducing the occurrence of the trouble.

设备故障诊断技术是保障设备安全运行的基本措施之一，它能对设备故障的发展作出早期预报，对出现故障的原因作出判断，提出对策建议，避免或减少事故的发生。

After slaughtered and peeled, a top-grade lamb is wiped off its hooves and horns and from head to tail, got through a crabstick with big nails, its neck is fixed on the nail, avoiding glide.

烤全羊选用上好羯羊，宰杀剥皮后，去除蹄角内脏，用一根穿有大铁钉的木棍，将羊从头至尾穿上，羊脖子卡在铁钉上，防止滑动。

With the regard of the container stacks of container yard which were parallel with the wharf surface direction, the buffer based fuzzy control strategy was firstly presented to solve the avoiding collision of crossway for automated container terminal using AGV.

针对集装箱堆存箱区水平于岸线布置的自动化集装箱码头布局，结合港区道路交通特点，对交叉口AGV避碰问题提出基于模糊控制的缓冲区策略，核心是路口缓冲区的设定和相位时间的确定，并设计了模糊控制器以解决相位配时问题，利用仿真软件建立了交叉口交通流的仿真模型，对目前常用的FIFO策略和FCB策略进行了仿真分析和比较，为自动化集装箱码头交通控制决策提供支持。

The air vessel works through twice air releases, solving the problem of inconstant air supply in process of cotton opening and blending. Test and application proves that the multifunctional air vessel can solve the problem of block up caused by the uniaxial cotton opener, keeping smooth operation of the production including effective dust removal, clog and iron seperation, avoiding the disadvantage of the former units including the sporadic cutover, simplifying the blow card flow, thus reinforce quality of the card sliver and the resultant yarn.

该设备通过两次释压，解决从抓棉到开棉、混棉间的气流不平衡问题，通过试验和实际使用，指出多功能气流塔能有效解决单轴流的堵车，保证清梳联的稳定运行；在除尘、重物分离和去铁杂等方面也有着较为理想的效果；能解决原各辅机在输棉管路中分散接入的缺点，简化了清梳联流程；能提高生条、成纱的质量。

Similarly, deallocate frees memory of a specific type, again avoiding the necessity for converting to void*.

类似地， deallocate 释放特定类型的内存，也不必转换为 void*。

While avoiding displays of decolletage may sound obvious, getting the look right isn't as easy as people think.

尽管众所周知在职场上不宜穿着过于暴露，但如何装扮才恰当却并非人们想得那么容易。

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％。