查询词典 perturbation function

The second-order perturbation formulas of the g factors and hyperfine structure constants for the lowest Kramers doublet Γ〓 of a 3d〓 ion under various octahedral symmetries (cubic, tetragonal, trigonal and rhombic) are established.

在较统一的理论模型和计算方法上建立了在各种对称性（立方、四角、三角和斜方）的八面体晶场中3d〓离子最低Kramers双重态Γ〓的g和A因子的二阶微扰公式，其中包含了前人通常忽略的组态相互作用、共价效应以及低对称畸变对自旋哈密顿参量的贡献。

Under the first perturbation approximation, the contribution of the torso scatterings increases with higher frequency, with shorter distance between the source and head center, with lower elevation of the source, and with azimuth departing from the ear.

在一级微扰近似下，躯干散射对HRTF的影响整体上随频率的升高、或声源距离的减小、或仰角的降低、或声源相对受声耳方向的偏离角度的增大而增大。随着微扰级数的增加，高阶微扰项对计算结果的贡献迅速减少。

The nth order perturbation corresponds to the nth order scatterings and reflections between the head and torso, therefore, for the conditions of the snowman model, the effects of the earlier three scatterings and reflections on HRTFs are important, and the contributions of the fourth-order and higher-order ones are neglectable.

由于 n 阶微扰在物理上是和头部和躯干之间的 n 重散射相对应的，因而本文的结果表明，在雪人模型的条件下，头部和躯干的前三阶多重散射对 HRTF 是重要的，四阶及以上散射可以忽略。

The perturbation method combined with multipole expansion method to calculate the head-related transfer functions of the snowman mode approximately, and the effects of the torso scatterings and reflections on HRTFs are analysed quantitatively.

本文提出微扰与多极展开相结合的方法，近似计算雪人模型近场头相关传输函数，并利用此方法定量分析躯干散射声波对HRTF的影响。

After stating some necessary perturbation techniques (§2.1), in §2.2, we discuss in detail the dominated splittings and the no-cycle condition for star systems.

在陈述了一些必要的扰动技巧后(§2.1)，在§2.2中，对星号系统我们讨论了准双曲分解以及无环性条件。

According to the perturbation method, we also studied stability of the non-convex quadratic programming problem, defined by Tikhonov, A.N.

其次，我们研究的问题可视为Bar-On 与Grasse (1993，1997)问题的条件放松，因此我们可利用Bar-On 与Grasse 方法求得的解来逼近我们研究问题的解，然这就涉及到参数对问题解的连续性，我们期望能以扰动法来回答这「规划问题稳定性」的问题。

The simulations in this dissertation, however, strictly mimic the experiments. With the research methods similar to the experiments of glycolytic extracts, the experimental phenomenon ? temporal target waves are first reproduced in numerical simulation, and irregular continuous target waves and spatiotemporal turbulences are observed by elevating the magnitude of the local perturbation which pioneers new directions for the experimental research of glycolytic reactions.

而本文在模拟中严格仿照实验条件，采用酵母抽提物实验中对酵解波的研究方法，第一次在数值模拟中重现了实验现象——暂态靶形波，并通过增加局域扰动的幅度观察到了非规则的连续靶形波和时空湍流，为酵解反应的实验研究开辟了新的方向。

Temporal target waves are first reproduced in numerical simulation, and irregular continuous target waves and spatiotemporal turbulences are observed by elevating the magnitude of the local perturbation which pioneers new directions for the experimental research of glycolytic reactions.

而本文在模拟中严格仿照实验条件，采用酵母抽提物实验中对酵解波的研究方法，第一次在数值模拟中重现了实验现象——暂态靶形波，并通过增加局域扰动的幅度观察到了非规则的连续靶形波和时空湍流，为酵解。。。

In order to get the optimal solution of an inverse problem,we analyse systematically the double perturbation processing technique, the first order Bor...

为了得到反问题的最优解，文中系统地研究了层状介质中双摄动处理技术，以及层状介质中波场摄动的一阶 Born 近似解与理论重力异常摄动解。

This paper has analyzed alkali metals atom s eccentric Zeeman effect with fine structure at magneto - static field by using perturbation theory , and derived the energy s ecumenical expression of energy level splitting when eccentric Zeeman effect happened,and given the certification by the special example of Na atom.

利用微扰论分析了碱金属原子在静磁场中有精细结构时的反常塞曼效应，推导出了发生反常塞曼效应时能级分裂的能量一般表达式，并且由Na原子的特例给出了证明。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。