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different equation
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  微分方程
     This paper gives a new method to solve the different equation y (n)+a 1y (n-1)+. . .
     本文给出了微分方程y(n) +a1y(n-1) +… +any =f(x)求通解的一种新方法 .
短句来源
     The Application of Function Different Equation on Research Quadratic Curves Geometry Properties
     泛函微分方程在研究二次曲线性质中的应用
短句来源
     By means of backward stochastic different equation and martingale methods,this paper obtaines general pricing formula of European contingent claim.
     利用倒向随机微分方程和鞅方法 ,得到欧式未定权益的一般定价公式。
短句来源
     EXISTENCE AND UNIQUENESS OF THE SOLUTION TO A CLASS OF TWO-PARAMETER POISSON TYPE STOCHASTIC DIFFERENT EQUATION
     一类两参数POISSON型随机微分方程解存在唯一性
短句来源
     By constructing the Lyapunov function with a special structure, prior estimate and the solution of ordinary different equation, we prove the main result, i.e., the trivial solution has global asymptotic stable behavior.
     构造具有特殊结构的Lyapunov函数,并通过解的先验估计和常微分方程的定解,证明了主要结论,即平凡解全局渐近稳定。
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  差分方程
     Positive Solutions of Some Boundary Value Problems of Difference Equations and Different Equation on Measure Chain
     几类差分方程边值问题及一类测度链上的微分边值问题的正解
短句来源
     In this paper, I mainly gain stability and asymptotic behavior of a different equation , a differential equation ,and a netrual integral-differential equation.
     本文的主要研究成果是关于差分方程、时滞微分方程、中立型积分微分方程的稳定性及其渐近性态。
短句来源
     The authors suggested that the different equation method was a simple and practical method under current managing intensity.
     作者认为在目前的杉木经营水平下,差分方程法更为简便实用。
短句来源
     In this paper, we investigate the global attractivity of a class of second-order different equation.
     本文探讨了一类二阶非线性差分方程的全局吸引性问题,得到了较之V.L.
短句来源
     At last,we give two examples to explain that when the state space containing absorbing state,we can also calculate absorbing probabilities by different equation.
     用一个例子说明,当过程的状态空间也为有限时可以根据差分方程计算出两状态间首达某一状态的概率.
短句来源
  “different equation”译为未确定词的双语例句
     In this paper, the different equation dx/dt=-y(1-ax~ 2n )+bx-cx~ 2n+1 , dy/dt=x(1-ax~ 2n ) was studied, and some condition were obtained to guarantee the existence and uniqueness of limit cycle for the given system .
     讨论了微分方程组 dx/dt=-y(1 -ax2 n) +bx-cx2 n+ 1,dy/dt=x(1 -ax2 n) ,并且给出了其极限环存在唯一的条件 .
短句来源
     The results were as follows:(1)The degradation of parathion in rape included two phases: physical degradation and chemical degradation,whichcould be described with the different equation: C_(t)=C_(0) e~(-kt),the half life was 23.05 h~25.85 h.
     结果表明:(1)对硫磷磷在油菜叶片中的降解分为物理为主和化学为主2个阶段,降解过程分别符合不同的Ct=C0e-kt方程,其在油菜叶片中的残留半衰期为23.05~25.85 h。
短句来源
     Asymptotic Behavior and Blow-up of solution for a Class of Ginzbur-Landau Type Nonlinear Partial Different Equation in Population Problems
     人口问题中具广义Ginzbur-Landau型方程解的渐近性和Blow-up
短句来源
     Based on different equation of Cobb\|Douglas production function, the model of regulating regional economy on the multi-objective optimization of efficiency and equity is set up, with the spatial distribution strategy of capital and labour force as the controlling variable.
     基于 C-D生产函数 ,以效率和公平为目标 ,以资本和劳动力的空间分配策略为控制变量 ,建立了区域经济调控我目标优化模型 .
短句来源
     The relation between chemical potential and compo- sition was calculated using different equation of state,namely Peng-Robinson(PR),Redlich-Kwong(RK),Van der Waals(VdW) and Virial equations. The average deviation is less than 5%.
     结果表明采用Peng-Robinson(PR),Redlich-Kwong(RK)及Van der Waals(VdW)方程计算化学势与组分关系而得到的模拟结果优于Virial方程,且平均误差在5%之内。
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  different equation
The same paradigm applies to the superfluid transition temperature of liquid4He, but results in a slightly different equation.
      
We consider the asymptotic solution of the Tonks-Langmuir integro-different equation with an Emmert kernel, which describes the behavior of the potential both inside the main plasma volume and in a thin boundary layer.
      
A similar situation occurs when the wedge is anisotropic except that 2α* is governed by a different equation and depends on material properties.
      
The relationship between the actual and geostrophic winds is described using three different equation sets.
      
The conversion from neutron stars with different equation of states (EOSs) for neutron matter into strange stars with different EOSs for strange quark matter has been studied in a general relativistic numerical calculation in this paper.
      
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The paper is divided into two parts. The first of these gives a general discussion of the curvilinear congruences. At the beginning, two expansions of the dyadics t and t×t are found, where t is the unit vector tangent to the curve of the congruence. By these results, the formulae of zero tendency and that of zero moment have been established. After this, it gives the value of the divergence of the veetor t div t—t·t and that of the function t·(t)2·t, these expansions indicate the equivalence of the equations...

The paper is divided into two parts. The first of these gives a general discussion of the curvilinear congruences. At the beginning, two expansions of the dyadics t and t×t are found, where t is the unit vector tangent to the curve of the congruence. By these results, the formulae of zero tendency and that of zero moment have been established. After this, it gives the value of the divergence of the veetor t div t—t·t and that of the function t·(t)2·t, these expansions indicate the equivalence of the equations div(t div t—t·t)=0 and t·(pt)2·t=0, and the inconsistence between the two different equations of limit surfaces, which are obtained by different methods by C. E. Weatherburn in 1927-1929. But they have no contradiction only in the case of normal congruences. In the second part of the paper contains the extension of the Tchebychef systems of surfaces in the space. By the results of the first part, various theorems are proved connecting the parallel displacement along the parametric curves. Finally for the coordinates congruences, it finds the equations of focal surface, of limit surface, of Ultimate surface……

本文分两段,前段就一般的曲纹线汇讨论。首先我们求得线汇中任一曲线单位切线的两种并向量式与,其次决定线汇之曲线在任一点任一方向内的趋量与矩量,及零趋量与零矩量公式。随后我们求得向量的散度展开式与函数的数量式,示明方程与方程的相当性,及C.E.Weatherburn氏用不同方法导出的限点曲面的两个互异公式间之矛盾。但它们在正线汇之情形为一致的。后段推广苏联数学家创立的所谓曲面上的捷比西夫系于空间,构成空间的一种曲纹坐标系,并引用前段之结果求其基本性质,分别求得各坐标线汇的焦点曲面,腰点曲面,限点曲面,正点曲面,端点曲面等方程,并论及各坐标面上的基本性质及其等距曲面与其成为平行面族的充要条件。

The diffusion coefficient of hydrogen in an iron membrane was measured using slightly improved electrochemical hydrogen permeation technique. Corresponding to the assumptions of constant hydrogen concentration and constant hydrogen flux on the cathodic side of the membrane, two different equations for estimation of the diffusion coefficient were derived. The criteria for choosing suitable equations are discussed. It is pointed out that the equation associated with constant hydrogen concentration...

The diffusion coefficient of hydrogen in an iron membrane was measured using slightly improved electrochemical hydrogen permeation technique. Corresponding to the assumptions of constant hydrogen concentration and constant hydrogen flux on the cathodic side of the membrane, two different equations for estimation of the diffusion coefficient were derived. The criteria for choosing suitable equations are discussed. It is pointed out that the equation associated with constant hydrogen concentration must be applied here. The obtained value of D is 4.3 ±0.3× 10-7cm2/sec, which is in harmony with the data from non-electrochemical methods.

一个略加改进的电化学氢渗透技术被用于测定氢在铁膜中的扩散系数。根据膜的阴极侧面上等氢浓度和等氢流量的不同假设,导出了两个计算D值的方程式。讨论了选用合适方程式的依据。实验表明,对所述的测定体系,必须采用与等氢溶度有关的方程。测得D值为4.3±0.3×10~(-7)cm~2/sec,结果与某些非电化学方法的测定值一致。

Mineral separation method was employed to separate the principal granular constituentsfrom fly ash into vitreous low iron spheres, vitreous high iron spheres, porous low iron glassand porous carbon. Their physico-chemical properties and activities were also examined. Experiments indicate that vitreous low iron spheres show higher activity whereas vitreoushigh iron spheres show lower activity. 35 fly ashes were collected from different areas of Chinafor determination of their chemical and mineral compositions,...

Mineral separation method was employed to separate the principal granular constituentsfrom fly ash into vitreous low iron spheres, vitreous high iron spheres, porous low iron glassand porous carbon. Their physico-chemical properties and activities were also examined. Experiments indicate that vitreous low iron spheres show higher activity whereas vitreoushigh iron spheres show lower activity. 35 fly ashes were collected from different areas of Chinafor determination of their chemical and mineral compositions, physical properties and acti-vities. According to mathematic statistical analyse, the factors inf1uencing fly ash activityvaried with the uses of fly ash for which different equations were derived to express theirrespective strength activities. For example, when fly ash is used as a partial replacementfor cement, its activity equation is as follows: Y_(28)=448.06-15.35X_1-1.89X_2+1.94X_3+73.47Xwhere: Y_(28)—regressive value for fly ash cement of 28 days compressive strength(kg/cm~2); X_1—content of fly ash grains of sizes>88μm(%); X_2—water requirement for fly ash cement under normal consistancy; X_3—content of low iron glass(%); X_4—content of SO_3(%). The activity equations established by the mathematic statistical method are relativelyhigh in accuracy, thus rendering possible the prediction of the activity of fly ash, especiallywhen it is used as cement admixture. As the activity of fly ash is somewhat varying whenit is applied to various uses, the aetivity equations should find their use in the rationalutilization of fly ash resources.

本文利用矿物分离方法从粉煤灰中分离出低铁玻珠、低铁多孔玻璃体、高铁玻珠及碳粒等粉煤灰的主要颗粒组分,并鉴定了这些组分的理化性质及活性。试验表明,低铁玻珠具有较高的活性,高铁玻珠的活性较低。采集了35种粉煤灰样,测定了它们的化学成分、矿物组成、物理性质及强度活性。通过多元线性回归分析,初步探明了粉煤灰在不同使用条件下影响强度活性的因素,求得复相关系数较高的强度活性方程,这对粉煤灰活性的评定及预测,特别是作为水泥、混凝土掺合料时的活性预测,及粉煤灰资源的开发具有一定的参考价值。

 
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