采用耦合微扰（CPHF）方法在HF/6-31G水平上对巴比妥酸衍生物的第一超极化率进行了计算。
The first hyperpolarizability is studied at HF/6-31G level by coupled perturbed Hartree-Fock (CPHF) method.
几何和量子场论课程是用泛函积分的语言对微扰量子场论的严谨的介绍，主要针对数学家设计。
Geometry and quantum field theory, designed for mathematicians, is a rigorous introduction to perturbative quantum field theory, using the language of functional integrals.
这里提供一种解决这类问题的计算方法——“变动边界微扰法”，并给出了微扰过程的收敛条件。
To solve such problems, a special method of calculation "Perturbation method for Variable Boundary problems" has been put forward, including the corresponding condition of convergence.
简单介绍了量子系统中的超收敛微扰法。
Superconvergent perturbation method in quantum system is briefly introduced.
最小平方法和矩阵微扰法等都列入考虑。
Least squares and matrix perturbation problems are considered.
文中还讨论并给出了微扰过程的收敛条件。
The convergence conditions for the perturbation procedure are also given and discussed.
并用微扰法计算和分析了四层漏波导结构。
The four-layer leaky waveguide mechanism is analyzed by perturbation method also.
本文主要讨论热微扰对热力学系统的影响。
In this paper we deal mainly with the influence of thermal perturbation on thermodynamic systems.
并与微扰QCD模型及朴素模型的结果作了比较。
The comparison of the results with PQCD model and naive model is presented.
计算值与测量值的比较证明了高阶微扰法的有效性。
The comparison of the computation and measurement approved the validity of HSPM.
采用微扰法，分析了滑频滤波器抑制孤子相位抖动。
The effects of the sliding-frequency guiding filters on reducing soliton phase jitter were theoretically studied by perturbation theory.
当微扰的强度足够大时，系统处于约瑟夫森隧穿的区域。
When the strength of the perturbation is large enough, the system is in the Josephson tunnelling regime.
模型可以描述真实的临界体系，但只能用微扰方法研究。
The Ginzburg-Landau-Wilson(GLW) model can be used to describe real systems, but it can be calculated only perturbatively.
计算到三阶微扰项，其结果可用于双光子及三光子共振过程。
The first three terms of the perturbation are obtained, which can be used for two or three photon resonant processes.
常用的计算自由能的方法有热力学微扰法及热力学微积分法等。
The usual means of computing free energy are thermodynamic perturbation, thermodynamic differentiation and etc.
本文用改进的微扰法分析了毫米波介质栅漏波天线的辐射特性。
An improved perturbation procedure is used for analysing the radiation characteristics of the millimeter wave dielectric leaky wave grating antenna.
本文采用微扰的方法讨论了极性晶体表面的激子在磁场中的性质。
The properties of surface excitons of a polar crystal in a magnetic field are discussed by using a perturbation method.
许多的数值方法和微扰方法被用于研究超短脉冲在光纤中的演化。
Many numerical methods and perturbation methods are used to understand the evolution of ultrashort pulses in single-mode fiber.
本人首先用此方法处理了自散焦非线性薛定谔方程的孤子微扰问题。
I tackle the perturbation problem of the nonlinear Schrodinger equation because of its importance.
计算及实验均表明，用微波腔体微扰方法测量非电量具有高的分辨率。
The calculated and experimental results show that the measuring method of non-electrical parameters with the microwave cavity by perturbation has a high resolution.
本文提出了一种提高微波测湿传感器灵敏度的新机理——微扰增强机理。
A new mechanism - "Pertubation Augmentation" is proposed to raise the sensitivity of the sensor for microwave moisture measurements.
而一般具有外加微扰作用力的含时薛定谔方程的求解需要通过李群分解。
The general time-dependent SchrOdinger equation with external perturbance needs to be resolved through Lie group decompositions.
最近发现，通过直接微扰法可以得到一类微扰作用下的混沌系统的形式解。
The direct perturbation technique, proposed recently, successfully deals with a kind of perturbed chaotic systems and obtains their general solutions for each order.
最近发现，通过直接微扰法可以得到一类微扰作用下的混沌系统的形式解。
The direct perturbation technique, proposed recently, successfully deals with a kind of perturbed chaotic system and obtains their formal solutions for each order.
由微扰法得到的纵向几何因子，可对该电极系的纵向识别能力进行定量讨论。
The vertical differential geometrical factor derived from the disturbed method may be used to evaluate the vertical resolution of the array quantitatively.
利用直接微扰法，给出了该系统的一级近似波函数及能谱随时间的演化规律。
This model is solved by applying the direct perturbation method. The time evolution of spectrum and the first order approximate wave function for the system are presented.
再次，设计实现了基于微扰小环和垂直叠放结构的微带双模双通带带通滤波器。
Thirdly, a dual-mode dual-band bandpass filter with rectangular-loop perturbation and stacked structure is presented.
本文提出用矩阵微扰法计算精密电磁测量线路的参数发生微小变化时引起的误差。
A matrix perturbation method for the calculation of errors in precision electro-magnetic measuring circuits caused by small variation of circuit parameters is described in this paper.
本文用改进的微扰法分析了一种新型圆柱介质栅毫米波全向漏波天线的辐射特性。
The characteristics of the omni-directional periodic circular dielectric rod leaky-wave antenna are analyzed by the improved perturbation method.
本文用改进的微扰法分析了一种新型圆柱介质栅毫米波全向漏波天线的辐射特性。
The characteristics of the omni-directional periodic circular dielectric rod leaky-wave antenna are analyzed by the improved perturbation method.
应用推荐