问题分析法

The calculation principles of PIM are analyzed and applied to elasticity mechanics problems.

文中分析点插值法的计算原理，给出其在弹性问题中的应用，并与有限元法以及移动最小二乘法进行比较。

We summarized the methods and application of wildlife surveys in China, and analyzed the problems and faults with these methods. We introduced the method of map strip sampling which we used in a survey of argali resources in all international hunting grounds, and compared the results and differences in application with line transect sampling.

中文摘要：本文全面总结了我国野生动物调查的主要方法及应用，分析了已有方法在应用中的问题和缺陷，介绍了国际狩猎场的盘羊资源调查方法--地图样带法，并比较了该方法与样线法得出的调查结果差异和两种方法在实际应用中的区别。

We introduce the principle and arithmetic of Finite Difference Time Domain method particularly, and primarily discuss on several essential questions including excitation sources, the conditions of stability of calculation, and Perfectly Matched Layer boundary conditions. All of these factors have effect on the results of the numerical simulation.

2详细介绍了有限时域差分法(Finite Difference Time Domain， FDTD)的原理和算法，着重讨论和分析了激励源设置、FDTD法的稳定条件、PML吸收边界条件等几个关键问题，这些因素会直接影响模拟结果。

Furthermore, The frequency-domain relationship between the electric flux density and the electric field is managed with the Z transform, which is of frequent use for digital filtering and signal processing. The optical pulse propagating in nonlinear and dispersive media is analyzed with Z transform, which is simpler than with auxiliary differential equation method.

同时利用数字滤波和信号处理中经常使用的Z变换来处理D和E间的频域关系，并具体分析了如何用Z变换法来处理非线性色散问题，此方法与辅助差分法相比要较为简单明了。

This thesis begins with the balance equation of the Schering Bridge and then analyzes specifically the accuracy and the measurement error of it. Through this analysis the thesis point out the problem of the Schering Bridge.

本文从西林电桥所建立的平衡方程式出发对西林电桥法的灵敏度和测量误差进行了深入的分析，指出了西林电桥法存在的问题。

By statistic analysis for modified isochronal testing data from many wells in gas field, the well testing tech of one point method to acquire empirical equation for calculating absolute open flow potential under different work systems and by use of binomial equation coefficient to count inertia r.

通过气田多口井修正等时试井数据进行统计分析，获得了一点法试井在不同生产时间下计算无阻流量的经验公式；利用气田修正等时试井的二项式方程系数B，计算惯性阻力系数并经过曲线回归处理获得了经验关系式，很好地解决了一点法试井计算产能方程的问题。

From the perspective of the variational discussion of Lagrange\'s contributions to the principles and analyzation of mechanics,the interaction between the calculus of variations and mechanics,especially the variational principles is made clear.

结合拉格朗日微积分代数化方案和18世纪可积性条件的研究，探讨了拉格朗日关于变分法基础研究的数学背景及相关工作；通过对《分析力学》中静力学约束平衡问题的细致考察，系统探讨了变分法中乘子法则的力学渊源、提出过程及意义。

It also discussed the process of using complex number voltage to measure the capacitive humidity component by the equivalent form of the capacitive humidity component.

针对目前湿敏元件在生产过程中还停留在手工测试而存在的一些问题，对电容式湿敏元件进行了详细分析，利用电容式湿敏元件的等效形式，阐述了使用复数电压法对湿敏元件的测量过程，建立了复数电压法电容式湿敏元件性能测试数学模型。

The examples indicate that the algorithm has strong pertinence and high efficiency, hi the discrete variable optimization, the problem is solved in the relative quotient method On the base of analyzing the relative quotient method, the conjugate gradient direction is used to modify the old search directions, the iterative matrix of the algorithm, and the method to resolve the discrete variable optimization, the relative conjugate difference quotient algorithm is presented.

离散变量优化算法是从相对差商法开始的，在详细分析相对差上法的基础上，用共轭梯度方向修正原有的搜索方向，并对算法的迭代矩阵进行相关的修改，最终形成一种用于求解离散变量优化问题的RCDQ法。

How to exploit and utilize water resources reasonably, and allocate them scientifically on the basis of the existing cir...

本文针对江苏省连云港市区的实际情况，分别对水资源需求预测方法、优化配置模型和优化配置决策支持系统等问题进行了研究，论文主要内容包括以下几个方面：(1)在分析需水预测分类以及影响因素的基础上，详细介绍了各行业需水预测的常规方法，并采用定额法、回归分析方法和人工神经网络方法对连云港市区2010和2020两个规划水平年的需水量进行了预测分析。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。