最佳值

Effects of some major factors on deoxidize rate of silver, such as Mix ratio connection of tartaric acid and glucose, over all concentration of mixed liquid, the pH level, the reaction temperature, the reaction time etc.

考察了酒石酸与葡萄糖的配比关系、还原混合液的总浓度、pH值、反应温度、反应时间对银还原率的影响，得出了酒石酸与葡萄糖、无水乙醇的质量比为1：2.6：1，pH值为12，在室温下放置时间为3-5d，银的还原率大于92.7%的最佳条件，总回收的金属银纯度为98.2%。

In order to develop new remaining value functions for large and medium-sized tractors, 116 recent tractor auction sales data in Shanghai State Farm were collected, by different Box-Cox transformations and regression methods, six proposed models with explanatory independent variables of tractor age and average yearly use hours were analyzed and compared, and the double square root model was selected as best one finally.

该文以上海农场近15年出售的116台拖拉机历史数据为观察样本，以机龄和年平均工作小时数为自变量，对6种不同的备选残值模型进行了回归分析和比较，在此基础上优选了双平方根模型为最佳残值模型，并用实际观察数据进行了验证。

On the basis of matching,the fade-in fade-out method is used to realize the image smoothing mosaic to enhance the matching effect.

利用2列像素及其所包含的区域信息，通过获取模板及计算最小差值寻找最佳匹配值，并在匹配完成的基础上采用淡入淡出方法对图像进行平滑拼接，以增强拼接效果。

Chapter 3 is arranged in the following sequence to acquire the refractive index of the Iceland crystal for different values of the wavelength and the temperature.

在可见光区将四组不同的波长和对应的折射率代入常数表达式中，然后通过重复的迭代得到最佳的常数值；使用线形插值的办法得到了不同波长的折射率温度系数，从而可得出不同温度的 S el line i e r方程常数值，这样可以很容易求出各个温度下各波长所对应的折射率值。

Based on the principle of Otsu method with maximum variance between threshold algorithm of image segmentation, an improved method derived from Otsu algorithm is put forward, which combines interclass distance with intraclass distance, a partial recursive algorithm is used to search optimum threshold.

基于最大类间方差阈值图像分割算法的基本原理，然后结合目标与背景两类之间间距和类内距离对图像分割效果的影响，提出了一种改进的最大类间方差法，运用递归思想局部搜索图像的最佳阈值。

Results show that 4-oxo-β-ionone is the major product with yield of 53.5% under the conditions as follows: reaction temperature 45℃, reaction time 24 h, the molar ratio of n: n(NaClO3): n 20: 100: 3, and pH value of solution in 1-3; on the other hand, 5,6-epoxy-β-ionone is major product with yield of 25.4% when reaction temperature is 40℃, reaction time is 24 h, the molar ratio of n: n(NaClO3): n is 20: 120: 5, and pH values of solution is 3. The excessive β-ionone can be recovered by vacuum distillation for reusing again. 4-oxo-β-ionone and 5,6-epoxy-3-ionone were purified by recrystallization and silica gel column chromatograph respectively with the purity over 98%.

研究结果表明：氯酸钠氧化β-紫罗兰酮的反应主要生成4-氧代－β-紫罗兰酮和5，6-环氧－β-紫罗兰酮，经重结晶和硅胶柱层析分离，纯度高于98%；4-氧代－β-紫罗兰酮的有利合成条件是反应温度为45℃，反应时间为24h，溶液的pH值为1~3，反应物配比n：n(NaClO3)：n为20：100：3，最佳收率为53.5%；5，6-环氧－β-紫罗兰酮有利的合成条件是反应温度为40℃，反应时间为24h，溶液的pH值为3，反应物配比n：n(NaClO3)：n为20：120：5，其收率为25.4%；未反应的β-紫罗兰酮经减压蒸馏回收后可重复使用。

Filter paper and lindane can be degraded effectively by the complex microbial system during pH 7~9 which also was the optimum condition of cellulose degrading, and in the condition of pH 10, lindane was degraded 49.62%, much more than that of cellulose.

在纤维素降解最佳的pH值7～9范围内，也同样有利于林丹的降解，而在纤维素降解较少的pH值为10的条件下，林丹的降解率高达49.6％。

Filter paper and lindane can be degraded effectively by the complex microbial system during pH 7～9 which also was the optimum condition of cellulose degrading, and in the condition of pH 10, the degradation ratio of lindane reached 49.62%, much more than that of cellulose.

在纤维素降解最佳的pH值7～9范围内，也同样有利于林丹的降解，而在纤维素降解较少的pH值为10的条件下，林丹的降解率仍高达49.6%。

The results show that the SI value of MAP is the logarithmic function of the mass concentration of P, of ammonium N and of Mg, respectively, and increases with the increase of the mass concentration of each element, The SI value of MAP is a polynomial function of the solution pH value, and the optimum pH value for the crystallization of MAP is 9.0 and increases slightly with the increase of N/P. Moreover, the SI value of MAP is a power law function of the solution ionic strength but decreases with its increase.

计算结果表明，磷酸铵镁的饱和度指数与氮、磷、镁的质量浓度分别呈对数函数关系，并随任何一个因子的增大而增大；与溶液pH值呈多项式函数关系，结晶反应的最佳pH值为9.0，并随溶液中氨氮与磷摩尔比的增大而略升；此外，磷酸铵镁的饱和度指数与溶液离子强度呈幂函数关系，随离子强度的增大而减小。

This method was mainly built on the operator matrix's singular value decomposition in the first class of operator equations, and then the best regularization parameters were selected in accordance with the characteristics of singular value so as to identify filter function, thereby removing noise of the function.

该方法主要建立在第一类算子方程的算子矩阵进行奇异值分解的基础上，然后根据奇异值的特征选取最佳正则化参数确定滤子函数，从而达到对该类函数的噪声去除效果。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。