On the basis of the characteristics of substituents and conjugated matrix, a novel molecular conjugated parameter ( B) was defined and calculated for122 molecules in this paper. 以取代苯苯环碳原子化学位移为依据,用曾经设定并初步证实的甲基诱导效应和共轭效应参数,讨论了甲基取代基的诱导效应、共轭效应及定位效应。
Polymer molecular weight and solution concentration parameter design are the key to decide whether the polymer flooding is successful or not. 聚合物分子量和溶液浓度参数设计,是决定聚合物驱油能否成功的关键,尤其是分子量和溶液浓度。
The determination of molecular weight and conformation parameter of galactomannan in water 用粘度法测定半乳甘露聚糖的分子量和分子链构型参数
The effects of solvent viscosity(μ), molecular volume ( V_m) and solubility parameter(δ~ 2) on solvent flux ( J) were investigated in order to probe the veracity and applicable range of the model. 通过实验考察了溶剂黏度(μ)、摩尔体积(Vm)和溶解度参数(δ2)对溶剂J的影响,验证了所建模型的准确性和适用范围。
The coefficient of molecular diffusion in crystalline rocks is an important hydrogeologic parameter that affect the migration of substance in rocks. 结晶岩石分子扩散系数是影响岩石内部物质运移的重要水文地质参数。
For the molecular structural discrimination, a pre-retrieval process was adopted, and a set of parameter-retrieval methods was developed in this work. 在分子结构检索方面,采用了预检索.并发展了一套参数检索方法。
Relationship Between Acoustic Nonlinear Parameter ( B/ A) and Molecular Structure Parameter in Organic Liquids 液体非线性声参量与分子结构的关系研究
Finally, by investigating the effects of solvent viscosity, molecular volume and solubility parameter on pure solvent permeability coefficient, studies established experimental model of pure solvent permeability coefficient and these parameters. 最后,实验考察了粘度、摩尔体积以及溶解性参数对纯溶剂透过系数的影响,拟合出透过系数与这些参数的关系式。
Influence of molecular structure of protein on acoustic nonlinearity parameter B/ A 蛋白质的分子结构对非线性声参量B/A的影响
Based on the molecular distance-edge ( MDE) vector of alkanes, a new set of parameter was defined and calculated, which could be applied to describe the structure of chlorinated benzene. 在烷烃分子距离-边数矢量(MDE)的基础上,定义并计算了氯代苯的结构参数。
The nuclear molecular orbit approximation theory is applied. For one-step transfer, if the parameter involved is assumed to be adjustable, the numerical calculations can be made to fit the experimental results naturally. 在原子核分子轨道模型的理论框架下,将交换势的强度作为唯一的可调参数,数值计算较自然地拟合实验结果。
The atomic parameter Wi and the molecular structural parameter mW are defined. There is a high correlativity between the properties of alkali halide and ion hydrated and mW, with the great coefficient of correlation. 定义了新的原子参数Wi和分子结构参数mW,并与碱金属卤化物、水合离子的物理化学性质作相关性研究得到很高的相关系数。
This paper used DNA fingerprinting techniques AFLP to detect the purity of Shanxi lean meat pigs on molecular level, it provides a relational parameter for appraising genetics character of SD-ⅲ Line. 用分子标记AFLP对山西瘦肉型猪(SDⅢ-系)进行纯度检测,旨在为评价该猪种的遗传特性提供相关参数。
It is found that the value of the dipole correlation factors depends on the order parameter, the components of molecular dipole correlation factors depends on the arder parameter, the components of molecular dipole moments along its major geometric axes and the molecular structures. 结果表明偶极关联因子与液晶的序参数、分子偶极矩沿分子长短轴分量以及分子的具体结构等有关。
Hydroxyl terminated poly ( lactic acid) and prepolymer from lactic acid ( LA) and ε caprolactone ( CL) were synthesized? The effects of reaction temperature ( θ), mole ratio of monomer and catalyst dosage on the molecular parameter of the prepolymer were investigated. 文中研究了端羟基聚d,l乳酸及d,l乳酸ε己内酯共聚物预聚体的合成方法以及反应温度、单体比、催化剂用量等对预聚体结构的影响。
Molecular Orbital Method for Semiconductor Compound Range Parameter Calculation 半导体化合物靶中射程参数的分子轨道法处理
The genotoxicity of 36 kinds of substituted benzenes compounds on the human peripheral blood lymphocyte was determined through micronucleus assay experiment, and the QSAR model of genotoxicity and molecular structure parameter was established. 通过微核实验,测定了36种取代苯类化合物对人体外周血淋巴细胞的遗传毒性;并构建了遗传毒性与分子结构参数之间的QSAR模型。
Relationship Between Molecular Structure Parameter and Chromatographic Retention Behavior in High Performance Liquid Chromatography 高效液相色谱中溶质分子结构参数与色谱保留行为的关系
The study of molecular structure conformational variation by using vibrational frequency parameter I. aromatic ester liquid crystalline molecules 用振动光谱的频率参数研究分子结构的构象变化Ⅰ.芳香酯液晶分子的研究
It was investigated systematically that the kind, amount, and the addition form of analogous mercaptan affected the molecular parameter of polymer, the polymerization rate and the copolymer composition. 研究了硫醇的种类,用量及加入方式对反应速率、分子量及分子量分布的影响,结果表明,除叔四、八碳硫醇使反应速度降低外,其它均无影响;
Molecular Structure and Solubility Parameter of Liquids 分子的结构与液体的溶解度参数
An augmented van der Waals model of VLE of the pure compounds has been established by the molecular thermodynamic method, and an equation of calculating the enthalpy of vaporization at the normal boiling point is obtained from this model, which contains only a molecular size-dependent parameter. 用分子热力学方法建立了纯物质汽液平衡的推广vanderwaals模型,并据此得到了一个计算正常沸点下液体蒸发焓的方程.它只含有一个与分子大小有关的参数。
The atomic parameter H_i and the molecular structural parameter H are defined. 提出了一个新的原子参数Hi和分子结构参数H。
Extended molecular orbital and coupling parameter between molecule and electrode are the two important factors that influence electronic transport property of the molecule. The extended molecular orbital is the main factor that results in the occurrence of the plateau feature for the conductance curve of the molecular system. 扩展分子轨道和耦合系数是影响分子电输运特性的两个重要因素,扩展分子轨道是导致分子体系电导曲线出现平台特征的主要原因,分子轨道的扩展程度和耦合系数共同影响着电导平台高度。
Liquid temperature of aluminum electrolyte depended on its molecular ratio and currency efficiency was also directly affected, so molecular ratio was an important parameter that should be analyzed and controlled on time in the process of aluminum production. 在铝电解生产中,分子比不仅决定了初晶温度而且也直接影响电流效率,因此分子比是铝电解生产中需要及时分析和控制的参数。
Liquid-liquid phase equilibrium of polymer and solvent of small molecular is mainly influenced by temperature and the molecular weight of polymer; binary interaction parameter in PC-SAFT model also has significant influence on the accuracy of simulation results. 聚合物与小分子溶剂体系的液液相平衡主要受到温度和聚合物分子量的影响,PC-SAFT模型中相互作用参数的选取也对相平衡的计算结果产生重要影响。
In this paper, compared the results ( deflection and vibration frequency) of molecular dynamics with non-local elasticity theory, we can got a small scale parameter. 本文将分子动力学的模拟结果(如挠度、自振频率)和非局部弹性理论的计算结果进行比照从而成功地确定小尺度参数。
It is a significant work to study the effect of CS molecular parameter and the introduction of a second ingredient on the properties of nanoparticles drug delivery. 研究壳聚糖的分子参数和复合另一种高聚物对纳米粒子给药性能的影响,以及增强药物与生物体表作用的敏锐性和提高药物的传输效果都是很有意义的工作。
Using mean field approximation and numerical calculations, order parameters in equilibrium state changing with temperature and molecular parameter are obtained, and four types of phase diagrams in the plane of temperature and molecular parameter are drawn. 利用平均场近似和数值计算,得到系统在平衡态下序参数随温度,分子结构参数的变化,以及系统在温度和分子结构参数平面内的四类相图。