常数函数

If α had been determined,the dissociation and non-dissociation species photolysis rate constants could be calculated by the tangent equation of the power function.

任意解离度条件下的解离态和非解离态光解速率常数，可根据幂函数的切线方程来确定。

First, the Lyapunov functional and variation of constants method are adopted to study the effect that Sigmoid function and the relation of resistance, capacitance and current in Hopfield neural networks have on the stability of networks. The stability criterion constructed by physics parameters is obtained. Thus how the constrained relation of physics parameters affects the stability of Hopfielf neural networks is clear. Based on the study above, the perturbation model of recurrent neural networks is constructed. And the theorems of the existence of solution of perturbation model are presented.

首先，采用Lyapunov泛函法和常数变易法研究Hopfield神经网络中给出的电阻、电容、电流之间的关系以及Sigmoid函数对网络稳定性的影响规律，得出仅由物理模型参数构成的稳定性判据，从而弄清物理模型参数约束关系对Hopfield神经网络稳定性所起的作用，在此基础上，构建了递归神经网络的扰动模型，并通过讨论扰动模型解的存在性问题，给出递归神经网络扰动模型解的存在性定理。

They are wire glass, wooden door and plasterboard. The permittivities are obtained from the coefficients using the time gating that can eliminate the influences from environments.

本文对其传输系数和反射系数进行了实际测量和理论分析，从而导出其介电常数，其中使用了时间栅函数来消除环境对测量的影响。

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。

The model predictions agree well with the available correlations obtained numerically and experimentally, they are expressed as a function of porosity with no empirical constant, and they are helpful for understanding the physical mechanism for tortuosity of flow paths in porous media.

本模型与实验数据和数值模拟结果均吻合很好，且迂曲度仅仅是孔隙率的函数，没有经验常数，因而有助于人们理解多孔介质中弯曲流线迂曲度的物理机理。

At the temperatures of 39.5℃,36.5℃ and 33.0℃ respectively, the vasoconstrictive force-time curve induced by norepinephrine and the equation of function were fitted.

测量39.5、36.5、33.0 ℃时，在NE作用下的张力-时间曲线，拟合出两者的函数关系式，并对关系常数进行F检验。

It is shown that the chlorinating process for fluorine-fixed calcine agreed well with the regional reaction rate model presented by Bagdasarym. The process consisted of two tandem steps, Erofeev Equation ln[ln(1a)]=lnk+nlnt was used to deal with the equation of reaction rate,the function between rate constant and temperature was k=2.7?07e125900/RT. The a...

结果表明：固氟焙砂的氯化反应动力学过程是区域反应速率模型，氯化反应过程经过了2个串联反应步骤，用Erofeev方程ln[ln(1a)]=lnk+nlnt处理反应速率，反应速率常数与温度T的函数关系式为k=2.7107eEa/RT，表观活化能Ea为125.9 kJ/mol，过程限制环节主要是界面化学反应控制。

In PL/1, a parenthesized list of one or more arguments, separated by commas, following an entry-name constant, an entry-name variable, a generic name, or a built-in function name.

程序设计语言pl／中一个带括号的表，内有一个或多个自变量用逗号隔开，其前为入口名常数、口名变量、类属名或内部函数名。

In PL / 1,a parenthesized list of one or more arguments,separated by comma s,following an entry - name constant,an entry - name variable,a generic name,or a built - in function name.

程序设计语言PL；1中一个带括号的表，内有一个或多个自变量用逗号隔开，其前为入口名常数、入口名变量、类属名或内部函数名。

According to the Planck formula,we have deduced a light wavelength equation of inflexion on Planck function , and solved two roots of the equation by Newton-Raphson method.

基于普朗克公式，导出普朗克函数拐点光波长的普遍方程，并利用牛顿迭代法求出该光波长方程的 2个根，找到普朗克公式中潜在的另外一个普适常数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。