分子的消光系数等于入射光和透射光强度对数的比。
The molecular extinction coefficient is equal to the ratio of the log of the intensity of the incident and emergent light .
对不同温度条件下的分子动力学模拟表明,氩的凝结系数随系统温度的升高而减小。
The molecular dynamics simulations for argon at different temperatures show that the condensation coefficient increases with the decrease of the system temperature.
它包括增长系数和他们的感受器,以及在癌症里的他们的作用和在临床的底座里的癌症新陈代谢的基本的细胞和分子生物学。
It covers basic cellular and molecular biology of growth factors and their receptors, as well as their role in cancer and cancer metastasis in clinical Settings.
我准备将原子轨道组合起来,进行分子轨道计算,这个过程还需添加一些系数。
I am going to sum up the atomic orbitals that go into the molecular orbital, and they are going to have some coefficients.
测得这种能量转移过程的速率系数和碰撞截面,可以获得原子之间以及原子与分子之间相互作用势的许多信息。
We can obtain a lot of information about interactional potential between atoms or atoms and molecules by measuring rate coefficients and cross sections.
结果表明,绳轮材料的弹性模量和摩擦系数分子分量,对钢丝绳耐磨性能有很大影响。
It shows that the elastic modulus and the molecular component of friction coefficient of the pulley material have great influence on the wear resistance of wire rope.
相对孔隙系数值可用以表征聚合物溶液流经孔隙介质时聚合物分子尺寸与滞留作用的关系。
Relative porosity factor value can be used to characterize the relation between the molecular size of the polymer and the its retention in the flow of polymer solution through porous media.
计算中,用半经验方法确定了分子轨道系数。
The molecular orbital coefficients are determined by means of a semiempirical method in the calculation.
每增长系数对它自己的具体的感受器捆,这开动一独特套说明分子。
Each growth factor binds to its own specific receptor, which activates a unique set of signaling molecules.
并通过分子模拟方法模拟了噻吩和正庚烷在PEG膜中的扩散系数。
Molecular simulation is used to calculate the diffusion coefficient of thiophene and n-heptane in PEG membrane.
这一细胞受损过程使“表观弥散系数(adc)”升高,ADC是研究脑中水分子分布的一种测量方法。
This process of cellular damage causes an increase in the "apparent diffusion coefficient," or ADC, which is a measurement used to study the distribution of water in the brain.
模拟获得的径向分布函数和扩散系数的值与实验基本吻合,分子间作用能分布也与文献报道的趋势一致。
The simulated radial distribution function and diffusion coefficient also accord with experiment basically. Rather, the pair distribution function is consistent with the literature reported.
电流公式中的透射系数是和分子的电子结构以及分子与金属的相互作用能有关的。
The transmission coefficient in the current formula is relevant to the electronic structure of molecule and the interaction between the molecule and the metal.
提出了“分子真空寿命”这一新的物理量,并以此概念推导出测量气体分子热适应系数的方法。
The new physical concept "molecule vacuum life" is presented, on which the method of measuring the thermal adaptation coefficient of gas molecule is deduced.
本文研究光滑系数的耦合扩散过程,这是一个刻画分子马达系统的数学模型。
In this paper, we study coupled diffusion processes with smooth coefficients, which model the system of the molecular motor.
本文在前文的分子模型基础上,提出了似化学局部组成的基团模型,可用于极性分子混合物申组分活度系数的预测。
Based onthe molecular QCLC model, a group contribution quasi-chemical local composition model is proposed, in which polar molecule is divided into several non-polar functional groups.
研究发现随着乙烯分子浓度的增加,被吸附的乙烯分子之间相互作用能随之增加,而乙烯分子的总扩散系数随浓度增加而单调递减。
It was found that the interactions between ethene molecules increase with the increasing of molecular concentration, while molecular total self-diffusion coefficient decreases with the concentration.
温度增加,分子的扩散系数随着增加,使镭源释放的氡量增加,导致氡浓度变大;
The diffusion coefficient of the molecule increases with temperature increasing, which makes radon released from radium source increase and causes radon concentration to increase;
国产与进口聚乙烯的分子量分布系数存在很大差异,并且分子量分布系数是造成聚乙烯蜡的应用性能差异的主要因素。
There are great difference in their molecular weight and distribution coefficient, which are the main factors affecting the applied performance of polyethylene wax.
实验研究结果表明:分子筛催化剂颗粒粒径的大小对壁面传热系数和总传热系数影响大,而对中央区的传热系数无影响。
Experimental results reveal that this diameter exerts strong influence to the overall heat transfer coefficients and that on the wall, but irrelevant to that in the central zone.
然后对JP-10,四环庚烷进行分子动力学模拟,计算了燃料的密度、扩散系数、内聚能密度、冰点及粘度,模拟结果与文献值基本相符。
After that the density, diffusion coefficient, cohesive energy density, freezing point and viscosity of JP-10 and quadricyclane were simulated. The results show good agreements with literature data.
防冲板前面安装超高分子量聚乙烯,可减小船舶与护舷的摩擦系数,大大降低船舶靠泊时剪切力,从而提高护舷使用寿命。
UHMW-PE set in front of panel, it can lower friction factor between vessel and fender, lower the shear strength while vessel berthing, and raise utility of fender life.
将X之值代入轨道系数方程组并求解,即可得到分子轨道系数。
Substituting X into the coefficient equation system of molecular orbits the coefficients of the molecular orbits can be easily obtained.
结合粘度理论建立了分子扩散系数与活化能之间的关系;
Combined with the theory of viscosity, the relationship between diffusion coefficient and activation energy is expressed.
测定了在水、乙醇、二氧六环中的紫外吸收光谱与克分子消光系数以及萤光光谱和量子产率。
The ultraviolet absorption spectra and molar extinction coefficients, fluorescent spectra as well as quantum yields of nucleoside hydrazones in water, ethanol and dioxane were measured.
利用简并四波混频(DFWM)方法测量二元分子卟啉酞菁的三阶非线性极化系数X(3)值。
The values of third-order susceptibilities X(3) of porphyrin-phthalocyanine heterodimers have been measured by degenerate four-wave mixing (DFWM) method.
水不溶沉淀物(乙酰化木质素)的重均分子量分布在341到253之间,分散性系数分布在1.1到1.2这一窄范围内。
The water insoluble precipitate (acetic acid lignin, AcL) had a low weight-average molecular weight range from 341 to 253 (Mw) and a narrow molecular weight distribution from 1.1 to 1.2.
与高分子包覆单基发射药相比,双层结构变燃速发射药具有较好的燃烧渐增特性和明显的低温度系数效果。
Contrast with single base gun propellant with polymer coating layer, the two-layered variable-burning rate propellant has good properties of progressive combustion and low temperature coefficient.
总结了通过分子动力学模拟方法求得导热系数的物理模型和基本算法。
The physical models and fundamental algorithms of MD simulations appropriate for thermal conductivity computations are summarized.
总结了通过分子动力学模拟方法求得导热系数的物理模型和基本算法。
The physical models and fundamental algorithms of MD simulations appropriate for thermal conductivity computations are summarized.
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