查询词典 equivalent equation

Amukhin et al.,and convert it into an effective1D chain with particular distribution of equivalent coupling bonds.Then we use the single-electron Schrodinger equation to calculatewave functions of electrons in the chain by transfer matrix method,without using the assumption of Samukhin et al.On variable hoppingmechanism and critical percolation condition.From this calculationwe obtain the dc conductance directly from Landauer-Buttikarformula.

mukhin提出的多层次等级分形结构模型，将其简化为耦合键强度t具有特殊分布的等效一维链，舍弃前人假设的变程跳跃机制与临界渗流条件，从单电子薛定谔方程出发，用转移矩阵方法计算一维链的透射系数，再利用Landauer-Buttickar公式直接求出直流电导。

Since the general limit state equation established is based on circular section,four calculation methods with section of roadway changed into equivalent circle section are put forward.

由于总体极限状态方程是在圆形巷道的基础上建立的，因此在文中还给出了一般形状巷道转化为等代圆形巷道时其半径的四种计算方法。

In the first part, convex duality method linearizes convex wealth equation, and the introduction of Lagrange multiplier converts original problem to an unconstrained static optimum problem. At last, we obtain another equivalent optimum problem with convex control domain.

文章前一部分运用凸对偶的方法先将财富方程线性化，Lagrange乘子的引入使最优问题等价与一个无约束的静态最优问题，最后转化为一个凸控制域的最优问题。

As we all know, it is equivalent to the null controllability of a cascade system governedby two linear degenerate parabolic equations. Next, we study the null controllability of acascade system governed by a semilinear degenerate parabolic equation and a semilinear heatequation.

众所周知，这等价于两个线性退化抛物方程构成的耦合系统在单个控制作用下的零能控问题；接下来我们又考虑了一类半线性退化抛物方程与半线性热方程构成的耦合系统的零能控问题。

Therefore, the existence of periodic solutions for the Hamiltonian system and its equivalent differential delay equation is established.

从而建立哈密顿系统以及与之等价的时滞微分方程的周期解的存在性定理。

Based on the equivalent circuit, the resonance frequency equation is derived and the expression of the resonance frequency is obtained.

在此基础上，得出了振子空载时共振频率方程和振子共振频率的表达式。

A new conception of power per unit impedance is defined and the basic equation to express the variation of load voltage magnitude with the variation of its dynamic equivalent impedance and that of power per unit impedance is derived.

定义了单位阻抗功率的新概念，推导了电压幅值随其等值阻抗和单位阻抗功率变化而变化的基本方程式。

Then the stability of the original dynamic system was determined by solving the equation of the equivalent system.

通过求解该等效系统的Lyapunov方程，判定原系统的稳定性。

On each subspace the Dirac equation is equivalent to a two dimensional system of ordinary differential equations of first order.

在每一个子空间中狄拉克方程等效为一阶线性微分方程组的两个空间系统。

In this paper, the method of determining the net charge value of ions in ionic crystal is posed by solving the equivalent lattice Dirac equation.

提出了一种求解离子晶体等价格点的单粒子离子Dirac方程方法，确定离子晶体的点电荷电量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。