通过对公式的讨论,提出了灌溉水矿化度临界方程,讨论了淋洗系数和优先流系数的物理意义和影响因素。
Through discussing above formulas, the critical mineralization degree equation of irrigation water was presented. The physical significance and...
讨论了一类中立型时滞微分方程所有解的振动性,获得了临界状态下该方程所有解振动的一个充分条件。
Considering a kind of neutral delay differential equations, a sufficient condition for the oscillation of all solutions of neutral delay differential equation in critical state is obtained.
再利用出现在挠度方程中的不定型式,我们可以找出计算临界力的公式。
Further, by making use of indetermined form appearing in the deflection equation, we can find out the formula for calculating the critical force.
讨论了带非负扰动并具有第二类边值的临界非齐次多重调和方程的多解存在性和非存在性。
This paper deals with the existence and nonexistence of solutions for a critical semilinear polyharmonic equation with the second boundary and with a non-negative perturbation.
讨论了带非负扰动的临界非齐次多重调和方程多解存在性和非存在性。
This paper deals with the existence and nonexistence of solutions for a critical semilinear polyharmonic equation with a non-negative perturbation.
应用瑞利商求解其倾覆稳定微分方程,给出了组合荷载作用时栅条稳定临界荷载计算方法。
By solving its stability different ial equation using Kayleighs quotient, the critical load calculation method for this type of paling acted on combined load was proposed.
通过求解扰动方程得到了动态屈曲的分叉条件、临界载荷和屈曲模态。
By solving the disturbed equations, the bifurcation condition of the dynamic buckling, critical buckling load and buckling mode are obtained.
文中推导了圆柱壳塑性动力扭转屈曲线性方程,获得了临界冲击速度。
The linear dynamic torsional buckling equations for the rigid plastic shell is drived, and the critical impact velocity is given.
讨论了带变号扰动并且具有一定附加条件的临界椭圆方程的两个正解存在性。
This paper deals with the existence of two positive solutions for critical elliptic equations with a changed sign perturbation and with an auxiliary condition.
本文中,我们提出了一个具有两种临界指数的非线性椭圆型方程问题,证明了狄氏问题的正径向解的存在性。
In this paper a problem of nonlinear elliptic equations involving two kinds of critical exponents is given, and also the existence of positive radiate solutions of the Dirichet problem is proved.
本文提出了一个新的三参数流体状态方程,并给出了三个参数与流体临界性质及温度之间的关系式。
A new state equation with only three parameters is proposed. The expressions for correlating the parameters with the critical properties of the fluid and the temperature are derived.
基于特征方程的解,精确地计算出临界载荷参数和动力特征参数的值以及动力失稳模态。
The dynamic buckling modes, the critical load parameter and the dynamic characteristic parameter are calculated accurately on the basis of the solutions of the characteristic equations.
由第二个临界条件导出压缩波前的屈曲变形约束方程。
The supplementary restraint equation at the compression wave front is obtained by use of the second critical condition.
对于在受压边简支,纵向加筋的受压加筋板,本文给出了求解临界载荷的特征方程的精确形式。
The exact characteristic equations for solving the critical bucking load of stiffened plate compressed and simply supported in direction of the stiffeners are derived in this paper.
本文讨论一类变系数带临界指数的椭圆型方程,主要考虑上述问题的非平凡解的存在性,包括多解与非存在性。
In this paper, we study the existence of multiple nontrivial solutions for the variable coefficient elliptic equations with critical Sobolev exponents.
研究了板几何控制临界本征方程多群逼近的合理性。
In this paper, the rationality of the multigroup approximation of the control critical eigenvalue equation for the slab geometry is studied.
从机械振动理论出发,用可靠性设计中的联结方程,得出了其在常用工况下按传动轴的临界转速进行可靠性设计的公式。
The paper starts from the theory of mechanical vibration, with tie equipment in the reliability design, and obtains a formula of design on critical speed in common use situation.
本文从理想流体、均匀密度模型解爱因斯坦场方程得到恒星的临界质量。
In this paper, the critical mass of stars is obtained by solving Einstein's field equations by means of the model of perfect fluid medium with uniform density.
结果表明当电子半径大于一个临界长度时,方程的解表现出良好的性质,不会出现奔离和预加速的现象。
It is shown that when the radius of the electron is greater than a critical length, the behavior of the solution is fine, no run-away and pre-acceleration appears.
研究了克努森数不是特别大的微流动的稳定性,这种流动处于N-S方程适用的临界处。
Modified N-S equations have been used to study the stability of microflow with a not-too-large Knudsen number.
由结构刚度矩阵行列式值为零的失稳条件导出结构失稳特征方程,从而精确地确定系统临界力值。
The precise critical force of a system can be deduced from the fact that the determinant of stiffness matrix of the system is equal to zero in the critical condition.
基于非线性多项式方程的零点配对算法以及临界点算法,给出了一种求平面代数剖分样本点的改进算法。
Based on the critical point algorithm and zero-match algorithm, an improved algorithm for finding sample points of algebraic decomposition was proposed.
在此基础上建立了可以考虑界面层和热应力影响的基体开裂临界应力求解方程。
The equation on critical stress of matrix cracking that could consider the effect of interface layer and thermal stress can be obtained.
为了处理超临界流和有冲波情况,我们在方程中引入人工粘性项,以消除解中可能出现的不连续性。
An artificial viscous term is introduced in the equation to treat the supercritical flow with embeded shock waves and to eliminate the discontinuous solution.
还计算了在M - S势作用下的中子物质出现铁磁相变的临界密度、含有铁磁相变的物态方程及中子星模型。
For neutron matter with M-S interaction, the critical density of the ferromagnetic transition, the equation of state and the neutron star models are calculated.
建立了深水环境下涡激振动的非线性微分方程,给出疲劳计算公式,并对比了浅水控制方法与深水控制方法计算的临界跨长。
This paper establishes nonlinear differential equations, gives the fatigue equations and compares the critical spanning of pipeline of calculated results from the shallows and deep water.
最后利用发生坡面泥石流前3日累计降雨量和当日前期降雨量,得出了该区域降水诱发坡面泥石流的临界雨量方程。
By using the antecedent precipitation on that day and 3-day antecedent precipitation, the formula of the critical precipitation can be obtained.
在电压稳定分析中,静态电压稳定临界点一般对应潮流方程的简单折叠点。
In voltage stability analysis, the critical points of static voltage stability usually correspond to simple fold points of power flow equations.
在电压稳定分析中,静态电压稳定临界点一般对应潮流方程的简单折叠点。
In voltage stability analysis, the critical points of static voltage stability usually correspond to simple fold points of power flow equations.
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