查询词典 constants

We have studied the electrochemical oxidation reactions of bilirubin, biliverdin, bile-purpurin and choletelin in H〓O+DMF mixed solvent and found that the oxidation reactions of these bile pigments were greatly sped up by the introduction of water into DMF, and discussed the effect of water on their oxidation mechanisms too, and determined the reaction rate constants in the mixed solvent.

利用现场紫外-可见及时间分辨光谱电化学技术，研究了胆红素、胆绿素、胆汁红紫素及胆黄素在DMF+H〓O混合溶剂中的电化学氧化反应，发现由于水的引入，使上述胆汁色素在DMF中的氧化反应大大加快。研究了反应的动力学，首次求出了反应的速率常数。

Fx . x = a' Wherever there is compositeness, argument and function are present, and where these are present, we already have all the logical constants.

凡有组合的地方，就有主目和函项，而有了这些就已经有了全部的逻辑常项。

The characteristics and influencing factors of various ductile fracture criteria were compressively analyzed. Ductile fracture criteria built on the theoretical basis of Lemaitres continuous medium damage-mechanics was chosen, and materials constants used in the ductile fracture criteria were calculated through the Role of Mixture.

综合分析了各种韧性断裂准则的特点及其影响因素，选择了在连续介质损伤力学Lemaitre的理论基础上建立的韧性断裂准则，应用混合法计算出了韧性断裂准则中的材料常数。

In the study of non-isothermal crystallization kinetics, we found that the Avrami constants were enhanced with the increase of the amount of the modified MMT at 10 ℃/min and 30 ℃/min. But it decreased with the increase of the amount of the modified MMT while the cooling rate increase to 50 ℃/min. The crystallization rate constat k also increased with the increase MMT and it revealed that the crystallization rate of composites accelerated by the presence of MMT.

由非等温结晶动力学得知，复材之Avrami 常数n值在10℃/min与30℃/min时，会随著改质蒙脱土含量增加而上升，但是当降温速率提升至50℃/min时，则随著改质蒙脱土增加而下降，其结晶速率常数k值随著改质蒙脱土含量增加而上升，代表复材之结晶速度也会受到添加改质蒙脱土的影响而变快。

The activation energies were highly pH-depended and decreased very sharply as the pH went up from 6. 0 to 11. 0 or down from 6. 0 to 2. 0.The stability of Gln residues in peptides or corn protein was the most at pH6. 0.At pH 6. 0, the rate constants of deamidation were the lowest, and their half-life and Arrhenius activation energies were the highest.

过酸或过碱都将增加脱酰胺反应的速率，动力学结果表明，pH6.0时最为稳定，表现为pH6.0时的脱酰胺反应速率常数最小、半衰期最长、活化能最大。

A novel method for determination of benzoyl peroxide with spectrophotometry was developed. Inclusion ratio of β cyclodextrin to dibenzoy peroxide and benzoic acid is obtained with spectrophotometry.The mechanism of the inclusion was studied,too. The results showed that β-CD react with dibenzoyl peroxide to form a 1:1 or 2:1 host-guest complex, with the apparent formation constants of 5.0× 10~2and 2.5× 10~4 , respectively.β-CD reacts with benzoic acid to form a 1:1 host-guest complex with the apparent formation constant of 6.9 × 10~2 after the dibenzoyl peroxide was reduced by hydroxyl ammonium chloride.

建立了用β环糊精测定过氧化苯甲酰的分光光度法，并测定了β环糊精与过氧化苯甲酰和苯甲酸的包结比，随着β-CD浓度的增大，可与BPO分别形成1：1或2：1的包容络合物，包结常数分别为5.0×10~2和2.5×10~4，与苯甲酸形成1：1的包容络合物，包结常数为6.9×10~2；由于包结物的吸光度值比过氧化苯甲酰的吸光度值大大增加，建立了一种当β-CD存在下，在水溶液中测定过氧化苯甲酰的方法。

Monte Carlo-finite element method ; diphase composite ; effective dielectric constants

蒙特卡洛有限元法；复合介质；等效介电常数

Effective dielectric constants of diphase composite are simulated by Monte Carlo - finite element method on square lattice in two - dimension. Logarithmic mixing rule, Wakino's equation, Maxwell - Wagner's equation and general effective medium equation are used to fit the computed data.

采用蒙特卡洛有限元法，在二维正方形格子上模拟计算了两相复合介质的等效介电常数，并用对数混合方程、Wakino方程、Maxwell-wagner方程和通用有效介质方程对模拟数据进行了拟合。

The inclusion constants was investgated by means of Hildebrand-Benesi double-reciprocal plot which based on the fact that the excitation and emission peak position of Brilliant cresy blue kept unchanged but the emission strength increased disciplinarily with the increasing of β-cyclodextrin concentration.

利用灿烂甲酚蓝的荧光强度随β-环糊精浓度的增加呈现规律性的增加，而最大吸收波长及发射波长不变的性质，用Hildebrand-Benesi法测定了β-环糊精与灿烂甲酚蓝包合物的生成常数，确定包合比，并预测了包合物的可能结构。

The extraction equilibrium constants of Nd , Eu , Am in the system of seven monoacidic organophosphorus compounds dodecane 1. 0mol/l NO〓are reported. The dependency of the extractability on the PO〓function group、bonding charactor、metallic ion species and the structure of substitute has been examined.

给出了七个烷基磷酸的正十二烷熔液从1.0mol／lNO〓水溶液中萃取Nd、Eu、Am的平衡分配常数Kex，考察了萃取剂PO〓官能团、萃合物成键特性、金属离子及取代基结构与萃取性能间的关系，发现了：（1）可运用取代基自由能加和模型预测辛基膦酸辛基酯对La、Eu、Nd、Am等三价离子的平衡分配数据。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。