查询词典 differential method

In this paper,the qualitative theory of differential equations and the bifurcation method of dynamical systems are used to investigate the existence of the solitary peakon solution to a generalized Boussinesq equation .

利用微分方程定性理论和动力系统分支方法，对一类广义Boussinesq方程的孤立尖波解的存在性进行了研究。

Differential display is the available method used for comprehending the genic expression of different cells or the same cells in different periods or stages.

差异显示技术是通过比较不同类型细胞或同种细胞处于不同时期或阶段细胞中不同表达的基因。

The extended trapezoidal rule method is also applied for the differential equations of geodesic described by geodetic coordinates .

本研究也将广义梯形数值积分法运用在大地坐标系中，分别对变化大地线长度、起点位置及起始方位角来进行分析。

A calculating method for finding the induced geodesic torsion was developed by using differential geometry and other mathematics tools.

为了分析线接触共轭齿面的诱导短程挠率，并清楚地诠释有关公式及计算推导的过程，运用微分几何、向量代数、线性代数等数学工具，寻找了一种计算诱导短程挠率的方法。

Based on the concept of partial acceleration, a general method for obtaining the differential equations governing the motions of a class of nonholonomic systems is presented.

基于偏加速度概念，给出建立一类非完整动力学系统运动微分方程的一般方法。

Total RNA extracted by improved guanidine thiocyanate method and treated with DNaseⅠwere found to be applicable to mRNA differential display technique.

提出了一种有效的芸芥总RNA提取和纯化方法改进异硫氰酸胍法提取的总RNA经DNaseⅠ处理后完全适用于DDRT-PCR分析。

A new method that applying the secondary harmonic ratio of restraint current to lock protection is put forward, with which the stability of differential protection could be enbanced.

提出了利用制动电流的二次谐波比进行闭锁的新方法，该方法可提高微机型变压器差动保护的可靠性。

In this paper, based on an optimum difference operator for spatial differential given by Holberg, an optimum difference method of modeling crosswell elastic wavefield is put forward, which adopts the staggered-grid technique and calculates the wavefield at different grid points. When the half length of optimum difference operator is taken as four to six points, the required number of grid points per wavelength equals to three, crosshole elastic wavefield numerical modeling can attain satisfied accuracy.

本文以Holberg提出的一种空间微分的最佳差分算子为基础，采用交错网格技术，提出了一种模拟井间弹性波场的最佳差分法，该方法能在大空间网格点上得到精确的波场值，当最佳差分算子的半长度取4～6个点，每个波长只采3个样点时，井间弹性波场的模拟就可以得到满意的精度，其计算速度比常规有限差分法至少快一个数量级。

AbstractPaper introduces the exponential function and homogeneous balance method for solving nonlinear partial differential of the exact solution, and then comparing the reference solution, and ultimately new exact traveling wave solution.

摘要论文主要介绍指数函数法和齐次平衡法求解非线性偏微分的精确解，然后对比参考文献的解，最终得到新的精确行波解。

In all, the application of the interdisciplinary cultural research method to culturally and politically reflect on the relationships between literature and space is not only criticism of alienation caused by the domination of homogeneous space power, but also possibility of combating the repressive space, and thus transforming space and seeking for multiple differential space that is free and emancipatory.

总之，运用跨学科的文化研究方法，对文学与空间的关系进行文化政治学的反思，不仅意味着对同质化空间权力统制所造成的异化现象的批判，同时也意味着抵抗压迫空间，进而改变空间，寻求自由解放的多样差异空间的可能性。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。