优化

By means of combining the structure analysis of finite element with optimization algorithm,the finite element model and optimization mathematics model of the multi-serial uniform load thrust bearing were established by APDL.

将有限元结构分析与优化算法相结合，应用APDL建立了多排均载推力滚子轴承的有限元模型及优化数学模型。

The production medium was optimized both by "one-variable-at-a-time" approach and the statistical methods based on Response Surface Method. The optimized medium composition was as follows: soluble starch 65.45 g/L, glucose 9.30 g/L, soybean flour 10 g/L, peptone 5 g/L, fish flour 10 g/L, yeast extract 3 g/L,(NH_4)SO_4 1.5 g/L, MgSO_4·7H_2O 4.93 g/L, KH_2PO_4 0.2 g/L, NaNO_3 0.75 g/L, CaCO_

通过单因素试验和以响应面为主的统计学方法对发酵培养基进行了优化，优化后的发酵培养基组成为：可溶性淀粉65.45g／L，葡萄糖9.30g／L，豆饼粉10g／L，蛋白胨5g／L，鱼粉10 g／L，酵母粉3 g／L，(NH_4)_2SO_4 1.5g／L，MgSO_4·7H_2O 4.93g／L，KH_2PO_4 0.2g／L，NaNO_30.75g／L，CaCO_34g／L。

Based on a fixed grid finite element framework and universal sensitivity in all design regions, a novel bi-directional evolutionary optimization technique, ie.

本文在渐进结构优化方法的框架内建立了统一敏感度的概念，并基于固定网格有限元技术，发展了一种新的增加材料技术，提出了双向固定网格渐进结构优化方法。

Evolutionary structural optimization; fixed grid finite element; shape optimization of cutouts in composite plates and shells; design of tunnel support

渐进结构优化；固定网格有限元；复合材料板壳开孔形状优化；洞室支护设计

First, to optimize imprecise polynomial circuits using arithmetic transformation, implement the design under different error precision bound and considering the case of fixed point and floating point representation., to search the optimized circuits with branch and bound algorithm.

方法首先利用算术变换进行非精确多项式电路优化，给出电路在不同精度界限下的实现，考虑电路的定点和浮点设计表示，然后应用分枝定界方法求解出最终的优化结构。

Considering the particularity of XML data to XML data transformation, we present some optimization approaches, including caching, graph reduction, path expansion, and FIXT index, etc., to improve the efficiency of XTG evaluation.

最后，我们在TREX系统中实现了上述优化技术，并在数据集上做了相应的对比实验，验证了这几种优化技术的有效性。

Becausethe ginger flavine and its the synonym have many kinds of pharmacologyactiveness, at present, conducted the research take this kind ofcompound as the forerunner which the structure optimized to cause inthe world scope chemist and the medicine scientist's widespreadattention, take the ginger flavine as the raw material, first had thefunction production corresponding sodium salt in the organic solventby NaOH or NaOEt and a-H, then and 卤代烃carried on the substitution reaction, the response condition which theresearch optimized, and grew this derivative monocrystal with thesolution law.

由于姜黄素及其类似物所具有的多种药理活性，目前，以该类化合物为先导进行结构优化的研究引起了世界范围内的化学家和药物学家的广泛关注，以姜黄素为原料，先在有机溶剂中以NaOH或NaOEt与a-H发生作用生成相应钠盐，再和卤代烃进行取代反应，研究优化的反应条件，并用溶液法生长该衍生物单晶体。

The results showed that PPFS had better flocculating efficiency than PFS and PAC,the performance of floccule was the optimal at pH of 6~10.Furthermore,when PPFS could be used to treat municipal wastewater,the optimal dosage of PPFS was 4.8 mg/L,and PFS and PAC were 6.4 mg/L,the removal rates of CODCr we...

此外，将PPFS用于处理城市生活污水，PPFS除浊的优化用量为4.8 mg/L，而PFS﹑PAC优化用量为6.4 mg/L；CODCr的去除率可分别高达91.4%﹑88.4%﹑86.5%；在pH值为7￣9的条件下，PPFS对城市生活污水的浊度和CODCr的去除具有良好效果。

Other optimal functions such as flow control and resource management are operated on the basis of it.

对于所有的网络系统，拓扑结构和路由优化都是网络设计和优化首先考虑的问题。

In this article two functional modes of the Fly-back Converter (Continuous Conduct Mode and Discontinuous Conduct Mode) are particularly analyzed, which include their characteristics, applications, the critical pattern of two functional modes is argued, both the exact boundary from the angle of circuit parameters is crystallized, at the same time, basic principle of PFC under the DCM mode is introduced, which settle theoretical basis for the subsequent design; by establishing the mathematic model of the converter, a further investigation of the configuration is made, qualitatively and quantitatively, analyzed to settle exactly theoretical basis for the subsequent emulation and the experimental parameter; from the angle of steady-state analysis, the transfer function of the system is deduced to establish dynamic small-signal state equation, emulating the system with the help of matlab, then according to the simulation result and the theory of PFC revise the system, lastly, we adopt the project which add a zero-pole compensator to the voltage loop, by this way, a satisfied system performance is gained and the PFC scheme is ensured successfully; finally, based on the previously-done work, we combining with the situation of specific design requirement, acquired the numerical value of each unit devices in this converter

详细分析了反激式变换器的两种工作状态，连续模式(Continuous Conduct Mode ，简称CCM)和断续模式(Discontinuous Conduct Mode，简称DCM)以及各自的特点、应用场合，论证了两种工作状态的临界模式，从电路参数的角度明确了二者的界限，同时还介绍了DCM模式下PFC的基本原理，为后面的设计奠定理论基础；通过对整个变换器系统建立准确的数学模型，对此变换器的电路结构做了进一步的研究，定性、定量地分析了变换器各部分的工作状态，为仿真和实验参数的确定以及电路参数的优化提供理论依据；从稳态分析的角度，为系统建立了动态小信号状态方程并推导出系统的传递函数，利用matlab对系统进行仿真，进而根据仿真结果以及PFC的相关理论对系统进行校正，采用在电压环加入零点—极点补偿器的设计方案，得到了满意的系统特性并且保证了PFC的顺利实现；最后，在前面所做工作的基础上，结合设计要求计算出此变换器系统中每个元器件的数值，利用Pspice对其进行了仿真、优化，然后根据仿真结果搭建了硬件电路。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。