查询词典 conservation

In this paper the effect of the spatial gradients of the electric field and the neutral wind on the linear growth of the plasma R-T instability and its growth rate are analyzed, based on the quality and the charge conservation equation.

本文从质量和电荷守恒方程出发，分析了控制电离层等离子体R-T不稳定性线性增长的各种因素，重点研究了热层风和背景电场的空间梯度对R-T不稳定性线性增长的影响。

Based upon the finite element method, the minimum energy method and electric charge conservation method are used to calculate electric field intensity distribution of the cable which contains suspending conductors.

本文采用有限元方法计算分析了有悬浮导体的电缆附件的电场强度分布，在可视化单连通域有限元前处理的基础上，补充完成了含有悬浮导体的可视化有限元前处理的研制工作。

The non autonomy statement equation basic circuit was established in this paper,and the conservation electric charge equation was worked out basing the periodicity of its stable solution.

对包络检波的基本电路建立非自治状态方程，并根据其稳定解的周期性，推导出电路的电荷量守恒方程，并通过假设的条件近似和简化方程。

We prove that the symplectic schemes preserve the charge conservation law exactly and analyze the energy residual. Both the global error and convergence ratio of the numerical solution are of ?

证明了我们构造的辛格式保持电荷守恒，而且分析了它的能量误差，证明了数值解的整体截断误差和解的收敛速度均为？

It shows that a remarkable advantage of the symplectic methods applied to the Schrodinger equation is the precise preservation of charge conservation law. In order to study the numerical stability, we also adopt the different time step sizes.

为了比较，我们还给出了同阶的非辛算法的数值模拟，从而得到辛摄动配置算法和其在理论上等价的辛龙格-库塔方法在数值上的等效性以及辛算法在数值计算中的优越性。

Influenced by the Romantic movement, the authorities in charge of heritage conservation first focused on medieval buildings, before gradually transferring their attention to increasingly recent periods.

受浪漫主义运动的影响，负责文化遗产保护的机构开始只关注中世纪建筑，后来渐渐地注意力越来越转向近代。

We show that in the presence of high potential steps the Dirac equation has solutions which violate the principle of charge conservation. This paradoxical situation has no completely satisfactory physical explanation within a one particle interpretation.

我们证明在高势能步幅的情形下Dirac方程存在违返电荷守恒律的解，这种荒谬的结果没有任何令人满意的的物理解释在描述单个粒子的时候。

In this paper,a completely different method based on charge and flux conservation at the switching instants for obtaining the initial conditions after switching is presented.

但当电路中出现冲激函数，如冲激电源，或因换路出现冲激变量时，这种论述就受到限制[1，2]。

An enhanced drain current model,along with an improved charge conservation capacitance model,is presented by the improvement of the channel length modulation and the hyperbolic tangent function coefficient based on the Materka model.

在Materka漏电流模型基础上，改进了沟道调制因子和饱和电压系数的建模方式，电容模型采用了改进的电荷守恒模型。

In addition, the membrane polarization time is gained from cell's simplified equivalent circuits and approved by system time constant of the state space equations of cell suspended system. Secondly, Laplace equations of the ideal model are built based on Faraday's Law, Gauss's Law, and charge conservation to analyze and calculate the amplitude and variation of transmembrane potential detailedly.

为了对微生物脉冲电场效应进行理论上的分析，首先，本文从细胞膜的结构、组成及功能入手，建立了微生物细胞的介电模型，求出了细胞膜的介质极化时间常数，并通过系统状态空间方程对其进行了验证。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。