恒量

有相同的或恒量的比率的n。

Mathematics Having the same or a constant ratio .

论普适气体恒量R

Research on Gas Constant R

近代物理学中普朗克常量h和光速c是两个最基本、最重要的普适恒量。

In modern physics the two most basically important and applicable constants are Plank constant h and light-speed c which brought about the development of physics .

Lagrange函数等效变换对力学系统对称性和守恒量的影响

Effects of Equivalent Transformations of Lagrange Functions on Symmetries and Conserved Quantities of Mechanics Systems

基于高阶微商规范系统Green函数的生成泛函，导出了该系统在量子水平下的变换性质方程，给出了系统存在量子守恒律的条件和守恒量的表达式。

Based on the generating functional of the Green functions for the gauge-invariant system in higher-order derivatives field theories , the equations of the transformation properties at the quantum level have been derived .

得到Mei对称性导致的Mei守恒量的存在条件以及Mei守恒量的表达式。

The existence condition and the expression of Mei conserved quantity which are deduced directly by Mei symmetry are obtained .

这是个恒量，这是角频率，ω等于，的平方根，因此，of，g，over，R，，and，so，the，period，震荡的周期等于2π，乘以R/g的平方根。

This is a constant , this is angular frequency and this omega equals the square root g / R of the oscillation is two pi times the square root of R over g.

讨论一般完整系统Appell方程Mei对称性和Mei守恒量的研究方法；

A research method between Mei symmetry and Mei conserved quantity is discussed for general holonomic systems .

笔者将该方法称为真恒量组份定值法（TCF法）。

This method is called true constant component fixed method ( TCF method ) .

然后导出形式不变性与Lie对称性的关系，指出形式不变性与Lie对称性的结构方程和守恒量有相同的形式；

Next , their relation is deduced . We show that the structure equation and conserved quantity of the form invariance and Lie symmetry of variable mass holonomic systems have the same form .

研究结果表明：与两守恒量相应的无限小变换既具有Noether对称性，也具有Lie对称性和形式不变性。

The result indicates that the transformations of the two conserved quantities not only possess Noether symmetry but also possess Lie symmetry and form invariance .

其次，给出了系统的一类新型守恒量的存在定理，并导出了用于确定无限小生成元的广义Killing方程；

Next , an existence theorem for the new type of conserved quantities of the systems is given , and the generalized Killing equations used to determine the infinitesimal generators are deduced .

力学系统的对称性与守恒量的近代理论主要有Noether对称性理论和Lie对称性理论。

Modern theories of the symmetry and conserved quantity of a mechanical system can chiefly be listed as belonging to the Noether symmetry theory and Lie symmetry theory .

讨论了Hamilton系统辛差分格式守恒量的存在性问题以及它们与辛差分格式的稳定性间的关系。

Discussion is given on the existance of conservative laws of symplectic difference scheme for the Hamilton System and the relationship between them and the stability of the symplectic difference scheme .

给出系统在施加陀螺力后，可保持其Noether对称性与Noether守恒量的条件。

The condition that the system , under gyroscopic forces , can keep its Noether symmetry and Noether conserved quantity is given .

利用常微分方程在无限小变换下的不变性，建立了系统Lie对称性的确定方程、限制方程和附加限制方程，得到了结构方程与守恒量的形式；

Using the invariance of ordinary differential equations under the infinitesimal transformations , the author establishes the determining equations , restriction equations , additional restriction equations of the Lie symmetries of the systems and obtains the structure equations and the form of conserved quantities .

结论采用CIA给药具有恒速、恒量，单位时间内用药量稳定的特点，是一种安全可靠、简便有效、省时省力的给药方法。

Conclusion Administration with CIA has advantage of steady speed , constant quantity , and stable drug consumption in unit time and this method of administration is security , reliability , convenient and effective .

美日两国规范和ISO标准都是将阵风影响系数取为一个恒量，中国规范中的风振系数却是随高度变化的量。

In the ISO standard and the wind load codes of America and Japan , the wind-induced vibration coefficient is called gust effect factor and is a constant , whereas it is a parameter changing with the elevation of the structure in the China ' code .

如果守恒量的组合能够成为Liapunov函数，便可用来研究系统的平衡稳定性和运动稳定性。

If a conserved quantity or a combination of some conserved quantities became a Liapunov function , then it can be used to study the stability of equilibrium and the stability of motion of the system .

本文证明，耦合Sinh-Gordon方程与Hirota-Satsuma方程的守恒量的无穷集可以通过一个简单的替换彼此关联起来。

It is shown that an infinite sequence of conserved quantities in both a coupled Sinh-Gordon system and Hirota-Satsuma system is interrelated via a simple substitution .

根据Ward-Takahashi恒等式和线性响应理论，确定守恒量方程应具有的形式，它自动包含了模-模耦合项。

The proper form of the equations for the conserved variables , including automatically the mode coupling terms , was determined from the Ward-Taka-hashi identities and the linear response theory .

结果证明，在10～12月，从情期的9～15d开始，采用FSH恒量法或FSH减量法对3～5岁的关中奶山羊进行超排可获得更好效果。

The results showed that superovulation can be improved when the goats at 3 - 5 years old were superovulated with FSH'by decreasing doses or consistent doses at 9 - 15 days of estrus cycle between the begining of October and the end of December during the breeding season .

导出的广义Stefan-Boltzmann系数不再是一个恒量，而是一个与黑洞视界的变化率、黑洞视界面附近的时空度规及黑洞的吸收与辐射系数有关的一个动比例系数。

It is found that the factor of generalized Stefan-Boltzmann 's is no longer a constant , but a dynamic proportional coefficient related to the rate of a change of event horizon and the structure of space-time near event horizon and the radiation absorption coefficient of black hole .

经典约束力学系统对称性与守恒量研究进展

Advances in the symmetries and conserved quantities of classical constrained systems

非线性波波相互作用共轭源函数守恒量的分析

Conservation Properties of the Adjoint Source Function of Nonlinear Wave-wave Interaction

有心力场守恒量的动量变量表示

Representation of conservative constants for the central field in momentum variable

它是一个值一个恒量。

It is a number , it is a constant .

对称性方法是寻求守恒量的近代方法。

Symmetry method is a modern method in seeking conservation .

质量变化对力学系统形式不变性和守恒量的影响

Effects of mass variation on form invariance and conserved quantity of mechanical systems

这个量叫做普适气体恒量。

This quantity is called the universal gas constant .