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The optimum process conditions of treating chromium-contained wastewater with low concentration and the optimum reflux rate of settled bottom stream of flocculate are obtained.

以长沙铬盐厂的含铬废水为试验水样，研究了用七水硫酸铁、亚硫酸氢钠、铁屑 3种还原剂达标处理较低浓度含铬废水的适宜工艺条件和悬浮液絮凝体沉降底流的最佳回流率。

The results indicated that the optimum pH of theβ-glucosidase is 4.8 and the optimum temperature is 50℃.

结果表明，该β-葡萄糖苷酶的最适pH值为4.8，最适温度为50℃。

Here we found the optimum situation to determine LAP: the concentration of Tris-HCl is 125 mmol L^(-1) and the optimum pH is 7.2, temperature is 37℃, under this condition, Michaelis constant is 0.15 mmolL^(-1), ground substance concentration is 6.0 mmol L^(-1), with 157 health people serum samples (81 from male, 76 from female),x± s=35.7 UL^(-1)±8.2 UL^(-1), we established the method and reference value for clinical application and automatic analysis.

测定亮氨酰氨基肽酶的最适条件：选用浓度为125mmolL^(-1)的Tris-Hcl缓冲液，最适pH为7.2，温度取37℃，得出在此实验条件下的米氏常数Km为0.15mmolL^(1)，亮氨酰对硝基苯胺浓度取6.0mmolL^(-1)，取健康体检者血清157例（男81例，女76例），测得x±s为35.7UL^(-1)+8.2UL^(-1)，建立了适合于临床应用及有动生化分析仪的方法和参考值。

First, we designed to determine the optimum ultrasound-setting, such as power level and ultrasound frequency, to achieve the optimum number of ruptures in the spinotrapezius muscles by intravital microscopy.

我们设计了应用活体荧光显微镜，测量不同条件超声介导微泡破坏作用后鼠脊斜方肌血管破裂口的数量和荧光脂质体微泡的弥散面积，确定最佳超声发射参数；然后，在慢性鼠脊斜方肌模型上，测量荧光标记蛋白的荧光强度和血管密度，对比两种血管内VEGF基因载体系统经超声介导微泡破坏作用后定向转基因表达的效果。

It was intuitionist and brief by the Matrix coding,the local optimum was avoided and the global optimum solution was obtained by the crossover and mutation operation.

采用的矩阵编码方法具有直观、简单的优点；通过交叉和变异让搜索跳离局部极值的陷阱，搜索到全局最优解。

The main content of this paper as follows: The acidic strength, reaction temperature, reaction time of Chlorine-aluminate Ionic Liquids with different structure of cation on the activity of transalkylation of MN with TeMB and the selectivity of 2,6-DMN were studied. The optimum reaction condition was obtained: the molar fraction of AlCl_3 is 0.71, molar ratio of 2-MN and TeMB is 1, the amount of ionic liquid is 32wt%, reaction temperature is 20℃and reaction time is 8h using X-xAlCl_3 and X-xAlCl_3 as catalysts; the optimum reaction time is shortened 6h using Et_3NHCl-xAlCl_3 as catalyst.

本文主要研究了以下内容：分别考察了不同阳离子结构的氯铝酸盐类离子液体的酸强度、反应温度、反应时间等因素对MN和TeMB转移烷基化的催化反应活性和2，6-DMN选择性的影响，优化得到适宜的反应条件为：以X-xAlCl_3和X-xAlCl_3为催化剂时，AlCl_3的摩尔分数x=0.71，2-MN和TeMB摩尔比为1∶1，离子液体用量为32wt％，反应温度为20℃，反应时间为8h；以Et_3NHCl-xAlCl_3为催化剂时，反应时间缩短到6h。

We present the linear extrapolation which predicts the required optimum normalized fiber lengths for the optimum pulse compression experiments. Two of the most important nonlinear processes occurring in optical fiber are sefl phase modulation and stimulated Raman scattering .

我们从理论上首次分析了波破裂现象对光纤-光栅对激光脉冲压缩的影响，对以往的经验公式予以修正，给出了最佳脉冲压缩实验所要求的光纤长度的经验公式，以方便激光脉冲压缩实验中对光纤长度的选择要求。

Based on investigating the short and intermittent structural plane, surrounding rockmass of the huge underground powerhouse in Three Gorge has been divided into five statistical similar areas according to its characteristic of rockmass structure by applying structure plane network simulation. Distributed characteristic of structural plane has been studied and based on it mechanics macrocharacteristic has been studied:(1) It is the first time that based on the result of structural plane network simulation rockmass quality of every structure area has been studied with applying blurred information optimum seeking technique and be compared with and RQD method. The result indicated that it has better effect to evaluate rock quality with blurred information optimum seeking technique.(2) It is the first time that the interrelated relationship of the result of in-suit rockmass deformation test and fractal characteristic of structure on test point has been applied to determine rockmass deformation parameter. The question of evaluating deformation parameters of engineering rockmass has been solved.(3) Anisotropy strength parameters have been determined by applying shear zones simulating method. The result indicated that there are different strength parameters in every structural area, after comparing the result of Fast Lagranian Analysis in continua number simulation method with that of method of weighted mean according to continuity. The result indicated that when a suitable reduction coefficient is been considered rockmass strength parameters can be simply and fast determined with method of weighted mean according to continuity where there is not enough test result.(4) Damage characteristic has been studied based on analysis fractal characteristic of structural plane network by applying fractal-damage coupling method. It is the first time that the concept of damage degree has been set up to evaluate rockmass quality according to the biggest principal damage.

通过对短小、断续性结构面统计特征的研究，将地下厂房区划分为五个岩体结构统计均质区，应用结构面网络模拟技术研究了各个岩体结构均质区结构面的发育分布特征，并以此为基础对岩体宏观力学特性进行了深入研究：(1)首次通过在结构面网络模拟计算结果的基础上，应用模糊信息优化技术研究了厂房区各个岩体结构分区的岩体质量并与岩体基本质量指标研究法、岩体质量指标RQD值研究法作了对比，结果表明以结构面网络模拟结果为基础，应用模糊信息优化技术进行岩体质量评价能够取得很好的效果，解决了工程岩体质量的定量评价问题；(2)首次通过对已有的现场大型岩体变形试验结果的分析及相应试验点岩体结构分形特征的研究，建立了结构面分布的分形维数和岩体变形指标间的相关关系，并首次应用这种相关关系根据结构面网络模拟及分形维数计算结果确定了缺少试验结果的地下厂房各工程部位的岩体变形指标而且应用于围岩稳定性计算，解决了工程岩体宏观变形参数的评价问题；(3)应用在结构面模拟网络图上模拟岩体剪切破坏带的方法，得出了岩体在不同方向上的强度参数，结果表明岩体的强度特性与结构面的发育方向和程度有着明显的关系，各个岩体结构均质区具有不同的强度参数；同时还通过应用拉格朗日差分法对岩体强度指标的数值分析并与按连通率加权平均计算法对比表明，按连通率加权平均计算法在考虑合理的折减系数情况下，可以简单快速地对缺少现场大型试验结果的具体工程部位实现岩体强度指标的估计，通过以上研究解决了工程岩体抗剪强度参数的评价问题；(4)通过结构面网络分形维数的研究，应用分形损伤耦合分析方法，研究了厂房区岩体的损伤特征，并首次引入"损伤度"的概念，建立了应用最大主损伤评价岩体质量的指标体系。

MIRV missile separation rule was built. Preliminary optimum design and optimize separation sequence were carried out. According to target attacking sequence and separation sequence which are preliminarily certain, the optimum separation sequence was determined by building compatibility rule of target attacking sequence and MIRV missile separation sequence.

结合多弹头导弹弹头特性建立了子弹头的分导原则，对子弹头的分导顺序进行了初步设计与优化根据确定的目标打击顺序和优化的子弹头分导顺序，建立目标打去顺序与子弹头分导顺序的一致性原则来确定子弹头的最佳分导顺序。

The properties of Mucor protease are studied. The Mucor protease are multienzymes that contain neutral and alkaline protease that have optimum pH in 9. 4 and a stable pH range 5. 5～10.The optimum temperature for neutral is in 60 ℃ and alkaline in 50℃. The activity of enzymes is stable for 100min in 40℃ and 50℃ incubation.

二、检测了毛霉蛋白酶的性质，结果表明毛霉蛋白酶系以中性及碱性蛋白酶为主，该酶系的最适pH为9.4，在PH5.5～10的范围内稳定，中性蛋白酶的最适温度为60℃，碱性蛋白酶的最适温度为50℃，在40℃、50℃保温100min酶活稳定，属于中高温型蛋白酶。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。