最佳

Aspergillus WQ is selected to explore the factors which affect producing enzymes. The best carbon source is crystallitic cellulose+straw powder, the best nitrogen source is peptone+yeast abstract cream, the best growing temperature is 35℃and the best initial pH is 5.5. WQ can produce the largest quantity of enzymes after being cultivated eight days.

从50℃左右牛粪自然堆肥中筛选了一株产酶量较高的曲霉WQ，对影响其产纤维素酶的因素和酶的热稳定性进行了初步研究，结果表明：液体发酵时，该菌最佳碳源是微晶纤维素+稻草粉组成的复合碳源，最佳氮源是蛋白胨+酵母膏的复合氮源，最适生长温度为35℃，最适起始pH值为5.5，在生长第8天产酶量最高。

The uniform design and PTC are used in the studies on preparation for the chitosan of high deacetylate degree and low viscosity.

利用相转移催化剂与均匀设计法探讨了高脱乙酰度、低粘度壳聚糖的制备方法，找出了最佳工艺条件，在最佳工艺条件下得到了粘度为 2 6.6m Pa· s，脱乙酰度为 99.4 %的壳聚糖

The development of research on deacidification methods of rice bran oil was reviewed in this paper, and the various deacidification methods and some problems respectively were analyzed.

按现代观点，油酸与亚油酸的比例为1：1左右的油脂营养价值最佳，符合国际卫生组织推荐的油酸与亚油酸的最佳比例，是国际上公认的健康营养油。

The optimum reaction conditions were obtained by orthogonal experiments. When the mass ratio of sodium polyacrylate to inorganic substances is 1:1.5:1.5,and the dosage was 0.3%,it got the best water reduc- ing rate 58.75 %.Experimental results showed that the composite deflocculant had good water reducing property in the ceram...

采用正交实验，确定了低分子量聚丙烯酸钠的最佳制备条件，并将其与无机物以不同比例复合，配比为1：1.5：1.5，添加量为0.3%时减水性能最佳，减水率达到58.75%，是一种很好的减水剂。

The experimental results showed that elute ability were improving with the increa...

实验结果表明，随着柠檬酸、醋酸溶液浓度的增大，其对重金属的淋洗能力呈增强趋势；在同等浓度条件下，柠檬酸对Cu、Pb、Cd的淋洗效果比醋酸的好，而对Zn的淋洗，醋酸的淋洗效果比柠檬酸的好；对Cu、Zn、Pb、Cd的淋洗上，选择柠檬酸的最佳浓度分别为11mol/L、11mol/L、0.71mol/L、11mol/L，选择醋酸的最佳浓度均为11mol/L。

The optimum formula was as follow: the fresh milk and emblic leafflower fruit juice mixed according to the proportion of 8:1, and 8.5% sugar were added; optimum compound stabilizers: starch 0.10%+pectin 0.025%+PGA0.05%; amount of latic acid bacterium: 5%; fermenting temperature: 42℃; time of fermentation: 2.5h.

结果表明，余甘子酸乳的最佳配比为：鲜牛乳与果汁比例8：1、蔗糖含量8.5%，复合稳定剂为淀粉0.10%+果胶0.025%+PGA0.05%。最佳发酵工艺条件为：接种量5%、滴定酸度76~80°T、发酵温度为42℃、发酵时间为2.5h。

The results showed that the Lactobacillus acidophilus played some roles in inhibition of common pathogens of cow endometritis and adhesion to cow endometrial epithelial cell.The optimal culture temperature was 39 ℃.The strain ...

结果表明该菌最适培养温度为39℃，在偏于厌氧的环境下生长最佳，在培养18~20 h后收获最佳，对奶牛子宫内膜炎常见病原菌具有一定的抑制作用，并与奶牛子宫内膜上皮细胞具有一定的黏附作用。

The effects of ultrasonication and HF washing on SiC nano-particles were analyzed by Zeta potential, particle size distribution and SEM. The stability of suspension of SiC in ethanol, ethanediol and mixture of the two medias with PEG as dispersant at different pH were compared. The optimum ultrasonication time for SiC nano-particles was obtained. The influence of HF washing on SiC nano-particles was discussed; and high stability of SiC nano-particles suspension was achieved at pH=10 in ethanediol with 1wt% PEG as dispersant.

本文中采用Zeta电位、粒度分析、SEM等测试技术分析了超声震荡和HF酸洗对SiC纳米粉体的影响：对比研究了乙醇、乙二醇以及75%乙醇和25%乙二醇混合液作为分散介质，聚乙二醇为分散剂时纳米SiC粉体在不同pH下的分散稳定性，确定了粉体最佳超声震荡的最佳时间；探讨了酸洗的作用；并在乙二醇中，以1% PEG为分散剂，pH=10条件下获得了纳米碳化硅粉体的高稳定分散悬浮液。

A pivotal problem to recognize of the precise position of laser facula has been solved in the process of design work: Firstly the method of background-subtraction is used to eliminate or weaken the affect of background light. Secondly the image threshold segmentation operation and morphologic operation are used to locate the sketchy position of laser facula ; Then the new method of Extracting Edge are designed based on character of laser facula , by using this method in the search area the edges of laser facula can be extracted effectively; At last the optimum picture of laser facular is selected by using the triggering function of hardware and function of software. The exact result can be obtained only by image processing to optimum picture.

在设计过程中解决了精确确定激光斑中心位置这一关键问题：首先利用减背景法，消除或减弱背景光的变化对确定激光光斑中心的影响；再对减完背景后的图片进行阈值分割和二值化处理以确定激光光斑的粗略位置；根据本文激光光斑的特征，设计了一个有效的边界提取算法，对指定区域进行提取激光光斑边界操作，精确的确定激光斑中心位置；最后利用硬件的触发功能和软件编程实现了激光光斑最佳图片的判读，只有对最佳图片进行图像处理得到结果才是准确的。

The inducing rate was 94.5%; the optimal medium for the inducting rate of fasciculated shoot was MS+1.0mg/L6-BA+0.5mg/LNAA+stem section with bud, The inducing rate was 37.5%.

诱导愈伤组织的最佳组合为MS+1.0mg/L BA+1.0mg/L NAA+0.5mg/L 2，4-D+叶片，其诱导率为94.5%；诱导丛生芽的最佳组合为MS+1.0mg/L 6-BA+0.5mg/L NAA+带芽茎段，其诱导率为37.5%，增殖培养中，以MS+1.0mg/L BA+0.05mg/L NAA效果最好，增殖率为460%，当株高在2cm以上时，转入1/2MS+0.8mg/L IBA+0.2mg/L NAA生根培养基上，接种30d后，生根率可达90%，移栽成活率达92%。

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。