查询词典 molecules

Organization of organic molecules with inorganic molecular species into nanocomposite biphase arrays.

各个材料质量损失的不同主要表现在第三部分表面活性剂的分解。

Resonance light scattering spectrum of cadmium- phenanthorline- bromophenol blue system has been studied. The effects of interference substances and optimization of procedure have been investigated. In the presence of Tris-HCl(pH=9.60),Cd2+ reacts with Phen to form the chelate cation, which further reacts with acid dye of BPB to form an ion-associated complex. Then, the complex molecules are accumulated to particles by virtue of hydrophobic forces and other molecular forces. This results in significant enhancement of RLS intensity, and the enhanced intensity of RLS at 638nm is proportional to the concentration of Cd~(2+).

研究了镉-邻菲罗啉-溴酚蓝体系在碱性条件下的共振光散射光谱特征，考察了体系的影响因素和最佳反应条件，研究表明，在pH=9.60的Tris-HCl介质中，镉与邻菲罗啉形成络阳离子，再与酸性染料溴酚蓝形成离子缔合配合物，在疏水力等分子间作用力下，缔合物分子聚集形成缔合微粒，溶液的共振散射光显著增强；在638nm处RLS增强程度与镉浓度成线性关系，线性范围为0-3.20mg/L，检出限为4.50ug/L。

The modified QCM sensors were used to recognize the butylamine isomers in gas. The results showed that the QCM coated with both compounds had preferential affinity to n -butylamine, then i -butylamine, t -butylamine in the range of low concentrations, indicating that in the recognition process, the steric hindrance effect played an important role when forming complex with guest molecules.

修饰的QCM传感器用于识别气相中不同的丁胺异构体，结果发现，在小浓度范围之内上述两种化合物修饰的QCM均优先吸附正丁胺，之后依次为异丁胺和叔丁胺，表明在形成主客体化合物的识别过程中，空间位阻效应是一个重要因素；当分析物浓度增大时，丁胺的极性和磁性成为分子识别的主要因素。

Fullerenes , the cagelike molecules, comstitute the third form of pure carbon, in addition to diamond and graphite.

除片层石墨和网状金刚石外，封闭笼形的〓是碳的第三种同素异构体。

Fullerenes , the cagelike molecules, comstitute the third form of pure carbon, in addition to diamond and gr...

除片层石墨和网状金刚石外，封闭笼形的〓是碳的第三种同素异构体。

Optically active cyclophane s, such as helical molecules and three-dimensional, cagelike cyclophanes have been the subject of extensive investigation from the standpoints of structural chemistry and material science.

本论文在大量的文献调研和本实验室过去研究结果的基础上，设计了由2，2'-二取代-1，1'-联萘和2，6-二取代吡啶，1，4-二取代苯，4，4'-二取代联苯三种不同连接桥通过炔键链接构筑的拓扑有趣的光学活性环芳化合物-四联萘笼状分子。

This experiment with dilute alkali swelling on collagen extraction and separation, then purified by gel from collagen, and then glutaraldehyde, carbodiimide, has three types of di-isocyanate cross-linking agent on the plastic recombinant protein molecules cross-linked, the final test of infrared spectroscopy analysis of the results of their cross-linking to determine the extent of the effectiveness of cross-linking cross-linking agent to have an initial understanding.

本实验用稀碱溶胀法对胶原蛋白进行提取与分离，接下来用凝胶层析纯化所得胶原蛋白，然后用戊二醛、碳化二亚胺、己二异氰酸酯三种交联剂对胶原蛋白分子进行重组交联，最后通过对红外光谱测试结果的分析，对其交联程度进行判断，对交联剂的交联功效有一个初步的了解。，谢谢。

Their adsorption rate on the molecular sieve catalysts surface and the stability of their carbonium ions were then obtained based on the molecular simulation on these molecules from their dipole moment, 2-dimensional electrostatic potential energy contours and 3-dimensional electrostatic potential energy isosurface.

采用半经验的AM1量子化学计算方法和静态理论，分别考察了噻吩、 3 甲基噻吩和 2 ，5 二甲基噻吩分子结构特性的不同，从偶极矩、各自垂直于芳香环平面的二维电势能分布曲线和整个分子周围三维电势能分布情况等方面分析了它们在分子筛催化剂表面吸附速度的快慢和生成正碳离子稳定性的高低，进一步比较了噻吩及其衍生物所生成的正碳离子进一步反应的能量变化，从而可判断噻吩及其衍生物裂化脱硫速度的快慢，噻吩及其衍生物裂化脱硫的速度由大到小分别为：2 ，5 二甲基噻吩、 3 甲基噻吩、噻吩。

Being of high reactivity, it can react with hydroxy and carboxy groups in resin molecules.

用金属有机化合物来强化涂膜是一个很主要的途径。

The results show that the conformation of copolymer molecules is totally different from that of carboxy methyl cellulose because of the introduction of the surface active macromonomers.

结果表明，共聚物在水溶液中的形态完全不同于羧甲基纤维素分子，亲水疏水链段的引入，使共聚物分子聚集形成了以疏水链段为核心的棍状胶束结构。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。