优

Some improvement of genetic algorithm is presented. Fuzzy evaluation is applied to parataxis choosing genetic algorithm to get better solution which satisfied both integral demand and individual demand of object functions.

把多准则模糊优选理论应用于并列选择遗传算法，从而得到即满足整体的最优性，又尽可能的逼近各子目标最优值的非劣解。

The experiment and analysis show that the multilevel partitioner of MVP can find the better partitioning and MVP can improve the performance of VLSI partitioner.

实验及分析表明MVP系统的多水平剖分程序能找到更优的图剖分，以及MVP系统找到比现有技术更优的VLSI剖分，提高了VLSI剖分的性能。

The pectin enzymolysis technology,juice debittering technology,and alcohol and acetic acid fermentation were studied. The results showed the best conditions of pectase hydrolysis are:amount of pectase 0.02%,temperature 50 ℃,pH 4.4 and time 4 h.

结果表明：果胶酶水解的最佳条件为：果胶酶添加量0.02%、温度50℃、pH4.4、时间120min；果汁脱苦最佳条件为：粒状活性炭添加量0.5%、室温搅拌60min；酒精发酵的最优条件为：接种量8%、发酵温度30℃、糖度20%、pH4.4、发酵时间4d；醋酸发酵的最优条件为：接种量10%、温度34℃、酒度8%、时间4d。

By Visual Basic 6.0 program, taken the distance between hole 200mm and buried depth 120～150mm as the optimization goal, the most optimum parameters range of the mechanism was obtained as follows: the initial angle between planet frame and the line formed from spraying-fertilizer needle-tip and planet wheel axle was -45°～-40°, the initial angular displacement of planet frame was 40°～50°, the distance between spraying-fertilizer needle-tip and the planetary gear axle center was 280～300mm, simultaneously, the semi-major axis of elliptic gear was 29.364mm, the teeth quantity was 23, the ratio of semi-minor axes and semi-major axis was 0.958, the radius of circular gear was 25mm.

对该机构进行运动学分析，建立了数学模型，以穴距200mm和入土深度120～150mm为寻优目标，应用Visual Basic 6.0软件编程得出满足机构运动要求的最优参数范围为：喷肥针尖和行星轮轴连线与行星架的初始夹角-45°～-40°、行星架初始角位移40°～50°、喷肥针尖与行星轮轴心距离280～300mm，此时椭圆齿轮长半轴29.364mm、齿数23、短半轴与长半轴比0.958，正圆齿轮半径25mm。

Our company has already acted as the agent and sold all kinds of excellent domestic and international products such as Japanese "Xinzhongcun", Japanese "Dongyang","Zhongyi" printing ink of Zhongshan City, Canadian LAMOER, Taiwanese PLASTISOL thermoset printing ink, British "Ketutai","Cunshang" light sensitive materials, British "Wuxingxing" gold powder, Italian "Wanlinglong" metal printing ink,"Tielian" brand and "Younili" brand silk net, etc.

公司现已代理销售国内外各优产品，如日本"新中村"、"DIC"、台湾"依田"浆料、日本"新老海"环保荧光涂料、上海"天鹅"牌印花涂料；日本"东洋"，中山"中益"油墨；加拿大LAMOER、台湾PLASTISOL热固油墨；英国"柯图泰"；北京"村上"感光材料；英国五星行金粉、意大利"万玲珑"金属油墨，"铁链"牌、"优尼利"丝网等上十大类、数千个品种并广泛适用于丝印、网印、广告、服装、鞋业、漂染、涂料、工艺、陶瓷玻璃等行业，热忱欢迎广大客户垂询惠顾、洽谈合作。

Fifthly, we research the problem about the stochastic fluctuate of the contents of organic compounds and microelements in the land under the assumption continuous-time model. The first, a dynamic model about fertility of plowland is presented using stochastic diffusion processes and distributed parameter system.

在分析了农业耕地中有机物含量及微量元素含量的随机变化过程的基础上，利用扩散随机过程理论及分布参数系统建立分析模型描述耕地肥力的分布状况；研究了以维护耕地最优质量状态作为目标值的最优控制问题。

In mathematics, this conclusion can be considered as the conjunction point between Riccati equation and Lyapunov equation, and from the point of view of control system, it can be considered as the conjunction point between optimization of system control and stabilization of system.

在此基础上，又推广研究了不确定系统鲁棒最优输出反馈的设计问题，探讨了静态、动态输出反馈设计的解法思路和问题，并给出了相应的研究结论。本文的最优输出反馈结论，从数学上看，可以认为是找到了Riccati方程和Lyapunov方程解的一个契合点。

This paper introduces a modified fuzzy decision tree model. Firstly, the data are fuzzed by the use of optimal division point with optimal division entropy. Secondly, uncertainty theory of fuzzy math is introduced and a tree is built according to uncertainty of classification and creation rule. Finally, each unit can be detected about whether or not it is a fraud according to rule match method.

介绍了一种改进的模糊决策二叉树模型，即采用最优分割熵方法确定最优割点来对数据模糊化，引入模糊数学中的不确定性理论，依据分类的不确定性建造树，生成规则，在此基础上利用规则匹配的方法检测任意的样本数据是否为欺诈数据。

In the study of open-loop optimal control problems, a useful tool is the so-called "Pontryagin"s Maximum Principle which gives a set of necessary conditions to optimal open-loop controls.

对于开环控制的研究，在最优控制理论中已经有了Pontryagin最大值原理这个有效的工具，它提供了最优开环控制的一个必要条件。

On this basis, anoptimization algorithm library named OPTLIB is formed. The study of dynamic optimization theory is followed. To solve the problem of thecoupling of the static and the dynamic parameters of the flying vehicle design, some auxiliaryvariables are introduced to deal with them together. Then the calculus of variation is adoptedand augment form of Pontryagin's Maximum Principle is derived.

研究了飞行器设计中的典型动态优化问题——轨迹优化问题及算法，针对飞行器设计中的静态参数和动态参数互相耦合的问题，引入辅助变量将静态参数和动态参数统一处理，在此基础上用变分法推导了极大值原理的增广形式，证明了单独的静态或动态最优并不等于总体最优。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。