查询词典 moment of dipole

With the analysis of theπandσresonance,the change of bond length,dipole moment,bond energy in different state are discussed.

键能变大，偶极矩变大等反常行为是和其分子内的共振能紧密相关的。

The result reveales that there is a curve correlation between the heart uptake and the dipole moment and the acme of the curve may be inferably in the range from .

根据计算结果对该类配合物的心肌摄取机制进行了讨论。

Dielectric polarization: The response of a dielectric material to on electric field, producing an induced dipole-moment per unit volume.

电介质极化：介质材料对电场的响应，每单位体积上产生一个感应偶极矩。

In this thesis, we focus on the theory for the interaction of molecular dipole moment with external electric field and use the numerical simulation to investigate the rotational state-selection of polar molecules in a hexapole electric field and the laser-field role of alignment or orientation for molecules based on semi-classical treatment, the detail is the numerical calculation for a quantum mechanical treatment of molecules and their interaction with the external field and a classical electrodynamical treatment for static electric field.

本文研究是在描述分子偶极矩（永久偶极矩或诱导偶极矩）和外电场相互作用的基础上，我们建立了对分子态选择和角动量取向、准直研究的半经典理论框架（即分子体系状态、能量及与外场相互作用使用量子理论描述，分子的运动轨迹使用经典电动力学描述），并利用数值计算方法对静电场和随时间变化电场作用下分子的转动态选择、取向和准直过程进行了研究。

The molecular radius and molar volume in gas, the dipole moment in gas, water and methanol, the sum of negative Mülliken charges and the frontier molecular orbital were also calculated at the same level.

在气相条件下计算了分子的半径及分子的体积，并在气相、水和甲醇介质中计算了分子的偶极矩、分子中原子的Mülliken电荷、分子的前线轨道。

The results show that the retention time of solute in HPLC is controlled by the molecular radius or molar volume, the dipole moment, the sum of negative Mülliken charges LUMO and the interaction between solution and solute.

结果表明溶质在反相C18柱上的保留值由分子半径或体积、分子的偶极矩、分子的静电力及溶质与流动相分子相互作用力决定。

During the past two decades, EO polymers based on high performance polymers with high glass transition temperatures have been one of the most active research fields due to their high thermal stability of the dipole moment after poling and long lifetime that are the two key problems in their applications.

在二十多年的发展历程中，以具有高的玻璃化转变温度的所谓"高性能聚合物"为母体的电光高分子材料由于具有较高的取向稳定性和较长的使用寿命，一直是研究的热点和重点之一。

Besides, the reduction of the dispersion part of potential leads to a lower critical temperature and higher in-plane part of molecular dipole moment; however, because the reduced critical temperature is relatively small compared with that of a 3D system, disappearance of the critical point has not been observed in the quasi-2D SM system within practical scope of the simulation.

尽管受到插入困难的限制，本文没有直接发现随着色散作用的减小汽液共存消失的现象，但根据对模拟结果的分析及对偶极作用的讨论，本文猜测这种情况在更小的色散作用和更低的温度下仍然是会发生的。

The results indicate that, in general, the critical temperature of the system becomes lower, compared with the 3D fluids, and is sensitive to the strength of the dipole moment, whereas the critical density shows an insignificant shift.

此外还考察了降低色散作用对系统汽液平衡性质的影响，发现降低色散作用会导致临界点下降，同时分子的偶极矩更加倾向处于分子所在的平面。

Before their commercialization, it is a challenge to synthesize EO polymers with large NLO effects, high thermal stability of the dipole moment after poling and low optical loss to fit the requirements of EO apparatus.

合成具有高的非线性光学效应和取向稳定性以及低的光学损耗的电光高分子材料以适应器件的制作要求，是电光聚合物走向实用前必须解决的几个极富挑战性的课题。

I can't say anything hurtful about anyone.

我不能说任何伤害人左右。

She was a short fat woman , garbed in a very tight , very gaudy red dress .

大冬天的，我们穿两件毛衣她却穿件短袖，不停地扇扇子，一个劲叫热。