比较函数

Based on the point dipolar potential, the superiorities, limitations and the relationship between MSA and the perturbation theories are compared and discussed.

对基于点偶极位能函数的微扰理论和平均球近似进行了比较，并讨论了二者之间的内在联系以及各自的优点和存在的缺陷。

A systematic convergence tests for hyperspherical potential curves, channel functions, are performed to assess the validity and efficiency. The challenging three-body problem with complex channel-coupling is solved efficiently and accurately. Accurate ground-state energy, structure parameters, and rotantion constants for Ar2Kr and Ar3 are obtained and compared to other theoretical values in the literatures.

系统研究了超球势曲线、道函数的特征与收敛性；实现了有复杂多通道耦合时重惰性原子三聚体的精确求解，得到了Ar2Kr和Ar3惰性原子三聚体精确的基态能量、结构参数及转动常数，并与文献结果进行了比较。

In chapter 4, by AREELS, the Generalized Oscillator Strength Density Spectra were measured in the energy region from 56 to 66eV, with the incident energy 2. 5 keV and energy resolution 80 meV, at scattering angles from 0°to 6°, corresponding to the momentum transfer K〓=0.03~2. 01 a. u. The Fano profile parameters f〓 and q for the optically allowed transition 〓(0, 1)〓P°and the optically forbidden transitions 〓(1, 0)〓S〓and 〓(1, 0)〓D〓 were obtained as a function of K〓. With the hyperspherical coordinate wavefunctions, the dynamical correlation are discussed qualitatively. So, a new experimental way to study dynamical electron correlation effect is opened.In chapter 5, the widely used R-matrix theory was introduced. Then, the GOSDS for the optically allowed excitation series (1s〓)〓S〓→〓(0, 1)〓P°(n=2-4) were calculated by this method, and the Fano profile parameters f〓 and q were obtained sequently. So the electron correlation effect can be described by these parameters quantitatively, and the theoretical results were compared with our AREELS experimental results.

在第四章中，实验上，同样使用角分辨的高能量分辨快电子能量损失谱仪，在2.5keV电子入射能量和80meV的能量分辨下，测量了0°到6°散射角下的He原子双电子激发态在56~66eV的广义振子强度密度谱，这种情况，0°~6°对应的动量转移范围K〓=0.03~2.01a.u。，得到了光学允许跃迁的双电子激发态〓（0，1）〓P〓和光学禁戒跃迁的双电子激发态〓（1，0）〓S〓、〓（1，0）〓D〓的Fano线形参数f〓，q等随动量转移变化的曲线；观测到了几个强度很弱、能级很窄的光学允许和禁戒跃迁双电子激发态，用前人准确的理论结果进行了标识；通过比较弱共振〓（1，0）〓S〓和〓（-1，0）〓S〓的强度随动量转移K〓的变化规律，结合超球坐标理论计算的波函数，定性地阐述了在电子碰撞散射过程中它们各自不同的动力学电子关联效应，发展了一套在实验上研究电子关联效应的新方法。

By taking thecondition into account that the impulsive times are fixed,some criteria are established inSection 3.1 to judge the stability of the systems in terms of two measures.

在§3.1中，考虑了脉冲时刻固定的情形。借助于变异Lyapunov方法、比较原理和逐段连续的Lyapunov函数，我们建立了一些这类系统依照两种测度的稳定性判定准则。

This study investigates the relationship between sound sources and sound fields by comparing the interaural cross-correlation function of BIRs and the IACF of an anechoic source convolved with the BIRs.

文中通过将BIRs导出的双耳互相关函数和将干信号与BIRs卷积后的IACF作比较，探讨了声源信号与声场之间的关系。

In this experimental system, the main feature is that user can do some basal operation expediently using graphical interfaces, namely loading the existent data sets or creating new data sets, and choosing different kernel function to train the SVM classification, which can classify the given data correctly, it shows the result of classification and comparison of performance intuitionally.

在该实验系统中，最大的特点是用户可以通过图形界面方便地进行一些基本的操作，即装载已有的数据集，也可以创建新的数据集，并选择不同的核函数训练支持向量机分类器，能够对数据进行正确的分类，比较直观地显示了分类的结果。

WebArray incorporates these packages and provides a user-friendly interface for accessing a wide range of key functions of limma and others, such as spot quality weight, background correction, graphical plotting, normalization, linear modeling, empirical bayes statistical analysis, false discovery rate estimation, chromosomal mapping for genome comparison.

WebArray合并了这些包并提供了一个用户友好的界面进行访问limma和其他的各种不同的关键函数，例如点质量权重，背景校正，图形绘制，归一化，线性建模，经验贝叶斯统计分析，错误发现率评估，基因组比较的染色体mapping。

Secondly, we compared four analytical models of the chemical evolution of the Galactic disk based on the new G-dwarf metallicity distribution.

其次，以我们得到的G矮星金属丰度分布函数作为观测约束，比较了四种采用星际介质化学丰度非均匀假设的解析模型。

The simulation results for three testing functions validate the high speed and precision of the AMSCIOA with mutative scale.

应用该算法对3个测试函数进行优化计算得到了比较满意的结果。

Under the condition of linear demand function, we analyzed the method of second degree price discrimination and compared it s characteristics in the case of two oligarchic enterprises that have equal power and a leading and a following one by using the method of game theory.

在线性需求函数条件下，用博弈论的方法对两实力相当寡头和 1领导厂商 1追随厂商市场情形二度价格歧视的方法进行分析，并对两情形价格歧视的特点作了比较。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。