查询词典 anharmonic

Moreover compared with the Taylor series solution, the frequency shifts in our solutions appear in the expression of oscillations of all orders in both classical and quantum cases, so multiple-scale perturbation method is more suitable for solving the weak-coupling anharmonic oscillation than the Taylor series approach.

与Taylor级数解相比较，无论是在经典还是在量子解中频率移动都出现在各阶振动表达式中，所以多尺度微扰解是弱耦合非简谐振动的较好解法。

The power system forced oscillation introduced by anharmonic periodic disturbances is then discussed. The effect of complicated pressure pulsation, ballistic pressure pulsation and quasiperiodic pressure pulsation on the stability of power system based on a single machine infinite bus power system and multi-machine power system are analyzed respectively through simulation.

从理论上探讨非简谐周期性扰动下的电力系统强迫振荡，并通过时域仿真分析单机无穷大系统和多机系统中汽轮机复杂压力脉动、准周期压力脉动及冲击性压力脉动对电力系统稳定性的影响。

The cross ratio he called anharmonic ratio.

他把交比叫作非调和比。

When the harmonic approximation is breakdown,the Morse potential is taken as the free energy surface to study the anharmonic effects of solvent mode and vibrational mode.

在谐振子近似失效的情况下，我们考虑了势能面为Morse势时，溶剂化方向和分子内振动方向的非谐性对电子转移速率的影响。

In this model, the Hamiltonian operator includes not only the anharmonic parameter, but also the dispersive parameters describing dipole-dipole interactions, reflecting the character of molecular stretching vibrations.

计算中引入的模型Hamilton算符所包含的描述U-F键非谐振动的参数λ和描述U-F键之间的偶极-偶极相互作用参数ε1，ε2由实验值得出，波函数|ψn〉按形式为|n，α〉=|n1〉|n2〉|n3〉|n4〉|n5〉|n6〉的基函数集展开，从而把复杂的Hamilton方程转化为简单的矩阵代数方程。

With our calculations and other studies, we can conclude that U(2) model becomes a potential effective model for molecules, especially for polyatomic molecules and highly excited states, where the anharmonic interactions between vibrations are dominant.

研究表明振动间的非谐和相互作用在分子的高激发振动中占有重要的地位。

And modified lead-based perovskites with larger tolerance factor, have less anharmonic coefficient with low frequency polar mode.

改性铅基钙钛矿因为在极化模低频化的同时有更小的非谐性系数，所以能在更大许容因子的情况下获得近零谐振频率温度系数，同时保持高介电常数。

This paper deals with the intracavity interaction of lightfield with anharmonic lattice vibration of ionic crystal.

处理了光场与离子晶体的非简谐性振动之间的相互作用问题。

Aim\ To investigate the calculation of the anharmonic effect in the lattice vibrations.

目的 研究晶格振动非谐效应的计算。

The results show that the calculated values agree with the experimental data. The mean square amplitude of (110) plane surface exhibits anisotropic behavior. The calculated anharmonic constants indicate that the anharmonic effect of (111) plane is the smallest.

结果表明，计算值与已有的实验数据比较相符；(110)面的原子振动振幅表现出明显的各向异性；由声子频率随温度变化关系得到的非谐常数表明(111)面的非谐效应最弱。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。