谱函数

This thesis focuses on the spectral function of rho meson in hot and dense pion medium.

本文主要讨论了热密π介子环境中的ρ介子谱函数。

By this parametrization, the problem of identifying AR and MA parameters is converted into one of identifying a new group of parameters.

从而将ARMA参数的辨识问题转化为传递函数参数表示中有界谱函数的分子和分母系数辨识问题。

For the parameters of physical interest, the self-consistency also diminishes the continuum part of the spectral functions.

对于π-ω模型，自洽效应对耦合常数有很大的依赖性，随着〓的减小自洽后的重子谱函数先增大后减小。

This paper investigates the dielectric spectral function and the feature of absorbing electromagnetic wave in carbon nanotube arrays.

本文研究碳纳米管阵列的介电谱函数与吸收电磁波的特性。

Based on boson-fermion model, we illustrate how to get the flow equations and how to solve spectral function of this model.

基于玻色子—费米子模型介绍了该方法的求解过程，以及如何利用流方程求解系统的谱函数。

Spectral Function ; Integral Spectrograph ; Stationary Time Series.

谱函数；积分谱图；平稳时间序列

Dynamic reliability under Littlewood-Paley wavelet is the biggest, dynamic reliability under modified meyerwavelet and harmonic wavelet are close. Analyzing the dynamic reliability of structure under odd exponent wavelet is very simple, it doesn't calculate Power Spectral Density function integral, it is only to calculate the square of displacement standard deviation and the square of velocity, then the dynamic reliability of structure can be concluded by max distribution. In addition the effects of upper limit is considered, when upper limit is smaller, the dynamic reliability of structure is less, that is, the damage possibility is bigger.

通过结构地震反应在小波基下的动力可靠性分析说明：无论是单自由度还是多自由度从理论上推导在这四种小波下的结构动力可靠性是可行的，而且考虑的结构地震反应都是非平稳的高斯过程，方法实现也比较容易；在Littlewood—Paley小波基下求得的结构的动力可靠度比较大，由改造的meyer小波和谐波小波求得的动力可靠度略有差异；单边指数小波下的结构动力可靠性分析非常简单，不用求功率谱函数来积分，只需求得结构地震反应的位移方差，速度方差，利用最大值分布公式就可得到结构的动力可靠时程；另外也考虑了超越界限对结构动力可靠度的影响，超越界限越小，结构的动力可靠度越小，即破坏概率越大。

Starting from the spectral representation of quasi-particles, when Debye screening mass and finite width of the particle are taken as parameters into the spectral functions, we will get effective propagators of quarks and gluons, and then establish the effective perturbation theory which reflects directly collective effects in QGP, and analyse some thermodynamics problems about soft partons in QGP.

接着，从准粒子的谱表示出发，自洽地将Debye屏蔽质量和粒子的有限宽度作为参量纳入QGP中玻色型和费米型准粒子的谱函数，得到夸克胶子等离子体中胶子和夸克的有效传播子，进而建立了直接反映QGP集体效应的有效微扰论，藉此一般性地分析了夸克胶子等离子体中软粒子的有关热力学问题。

This paper is devoted to investigating the multiple time series,introduce the integral spectrograph to estimate the spectral functions.

本文讨论多维平稳时间序列，引进积分谱图来估计谱函数，证明了误差过程的不变原理在软弱的条件下成立。

So, we propose a rule to calculate the k〓k〓 terms, and obtain the non-negative baryon spectral function which has the correct threshold.

为此我们提出了一个计算k〓k〓项的方法，据此可以使谱表示有正确的阈值，同时谱函数不取负值。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。