简正振动

C-15型超导体HfV2简正振动的对称性质

The symmetry properties of the normal vibrations of C-15 type superconductor hfv_2

每个组的结构特点和拉曼简正振动模式进行了讨论，并对具有C2。

The structural features and the normal vibration modes for each group are discussed .

用群论方法给出H2O分子的三种简正振动模式的数学表达式，并对有关计算作进一步分析讨论和补充修正。

Mathematical representation of three types of vibration modes for the water molecule is given .

基于密度泛函理论的ANB分子简正振动分析

Analysis of Vibrational Spectra of ANB Based on Density Functional Theory

Hg2Cl2的简正振动分析

Normal Vibrational Analysis of Hg_2CI_2

论文绘出了14个离子的结构图，以及普遍存在的结构单元P33、P73和P113的简正振动模式图。33。

The structural diagram of14 polyanions and the vibrational models of the structural units P33 , P73 and P113 have been plotted .

利用群论方法构造出属于C2v群的各不等价不可约表示的投影算符，应用求得的投影算符合成丙酮分子的24个简正振动模式及简正坐标，并分析其振动模式的光谱特性。

In this paper constructed the projection operators of all the inequivalent and irreducible presentation which attributes to C_ ( 2v ) group , according to these projection operators composed the twenty-four normal modes of vibration and their normal coordinates , and analyzed the spectral properties of these vibration modes .

亚已基硫脲分子的拉曼、红外光谱和简正振动分析

Raman , FT-IR Spectra and Normal Mode Analysis of Ethylene Thiourea

乙硼烷的简正振动频率和光谱熵

The frequencies of the normal vibration and spectral entropy of diborane

确定分子简正振动模对称类型方法的改进

Improvement of the method of determining the symmetry type of the molecular normal vibration modes

每一阶简正振动方式的能量与撞击力在该频率的频谱分量的平方成正比；

The energy of every normal mode of vibration is proportional to the square of the spectra !

第四章分3节分别介绍了红外光谱的谐振子模型、简正振动类型和频率特征。

The fourth chapter introduces the harmonic oscillator model , normal mode vibration types and frequency characteristics of infrared spectra .

实验结果的分析表明，该偏振红外光谱术不仅有助于研究物质红外光谱吸收峰的归属，而且能更深入认识物质简正振动模的本质。

The analyses show that the polarized IR spectroscopy can not only assist the assignments of spectral peaks , but also enable one to further understand the nature of normal modes of a compound .

利用简谐振动能量方程，通过分析振幅矢量的关系，用能量法求多自由度振动系统的角频率或简正振动频率。

On the basis of the energy equation of harmonic oscillation , the angular frequency or normal vibration frequency of many-degrees of freedom oscillation system could be obtained by analyzing the relationship between the amplitude vectors .

理论证明：如果集中质量很小（对梁的质量而言），当集中质量的位置改变，位于无载梁的某次简正振动的节点（腹点），振动频率具有极大（极小）值。

It is proved that if the concentrated mass is small and located at the node or antinode of some mode normal vibration of the nonloaded beam , the frequency has a maximum or minium value as the position of the concentrated mass varies .

本文采用U－B力场在位置群近似时对钻石中SiO离子的内振动进行了简正坐标分析，振动频率的计算值与观察值吻合很好。

Normal coordinate analysis has been carried out for the internal vibrations of SiO ions in zircon using the Urey-Bradley force field .