查询词典 numerical technique

The characteristic function of the probability density function of response variable is obtained by the high efficient multidimensional numerical integration method or convolution integral based on response surface method. Then the discrete probability density function of response variable is calculated using the fast Fourier inverse transform technique, at last the cumulative distribution function of the response variable can be quantitatively determined.

首先利用高效多维数值积分方法或基于响应面法的卷积积分求解功能函数的分布函数的特征函数，也就是进行Fourier正变换；然后利用快速Fourier逆变换数值求解功能函数的概率密度函数，进而求得失效概率。

According to the characteristic of the inverse problems of ECT, the minimum norm solution was improved using regularization technique , and the stability of the numerical solution was analyzed via singular value decomposition principle.

在分析极小范数解的基础上，针对电容层析成像逆问题的特点，利用正则技巧对其进行改进，并利用奇异值分解定理分析了这种改进的数值稳定作用。

The technique of numerical simulation has become a new direction in the research field of welding for the future.

数值模拟技术已成为今后焊接研究领域的一个新方向。

Because of the disbalance of our country's foundamental education development in cities and countrsides it results that the teachers in cities and countrysides differ greatly in the education ideas, the information environment and the information technique studies and development opportunities. These factors will result in new numerical margin between the teachers in the cities and those in the countrysides, which obstructed the construction of the informationalized education and the implement of the new course in the countryside.

但由于长期以来我国城乡基础教育发展的不均衡，导致了城乡教师在教育观念、信息环境及信息技术学习与发展机会等方面存在着很大的差异性，这些因素都将会使城乡教师的素质水平产生新的数字鸿沟，从而阻碍了农村教育信息化的建设和新课程的实施。

The authors studied carefully two numerical differential methods, finite difference method and rational polynomial technique, and pointed that FDM is the special ease of RPT when the limit state function is linear. Accordingly, FDM3 can be used for the continuous linear limit state function and RPT5 for the continuous nonlinear limit state function. For the discontinuous limit state function, RPT should be used because of the large error of FDM.

对于可靠度分析中常用的有限差分法及有理多项式法这两种数值微分方法，本文详细研究了二者间的异同及其求导结果与步长的关系，指出了对于相同的步长控制系数及取样方式，FDM是RPT在线性情况下的特例；对于连续的线性功能函数，可直接用3点FDM求导；对于连续的非线性功能函数，可用5点RPT求导；对于非连续的功能函数，应采用RPT求导。

Some new viewpoints are also discussed besides the development of researches already explored. The above mentioned aspects include exploring ne w elementary technique, possible scheme for simplifying the structure, achieveme nt of dynamic area decomposing method, establishment of distributed parallel pro cessing system and application of similarity method in numerical simulation of w elding process.

除对本研究组已开展的工作进行了一定的分析外，并对某些未来的研究发展方向进行了初步的探讨，这些可能进行的研究包括单元技术的开发、可行的结构简化方案、动态区域分解算法的实现、分布式并行处理系统的建立和相似原理在焊接过程中的应用等。

Engineering Drafting》,《Mechanic Designing Foudation》,《Electrotechnician Foundation》,《Electronics Elements Techniques》,《Mechanic Control Techniques》,《Numerical Control Technology》,《Hydraulic and Pneumatic》,《Sensor and Testing Technique》,《Manufacture Technics of Dynamoelectric Product》,《SMT》,《Electric Control and PLC》,《Specialty English》,《CAD/CAM》,《Equipment Problem Diagnosis and Maintaining》,《Electronic Equipment Configuration and New Knowledge Lectures》,《Engineering Drafting Mapping》,《AutoCAD Training》,《Electric Product Integrated Assembling Training》,《Electronics Circuit Design》,《Locksmith training》,《Application Machine Design》,《Equipment Maintaining Training》,《Computer Assembling and Maintaining Training》,《Graduate Training》,《Synthesis Practice》.

工程制图，机械设计基础，电工基础，电子技术基础，机电控制技术，数控技术，液压与气动，传感与检测技术，机电产品制造工艺，表面组装工艺，电气控制与PLC，专业外语，CAD/CAM，机电设备故障诊断与维修，电子设备结构及新知识讲座。

In this paper,a technique for numerical calculation of a dual-cylindrical antenna array is investigated.The admittance matrix of the equivalent network is also presented.

本文介绍了一种双圆柱体结构全向天线阵列的表面电流及等效端口导纳矩阵的计算方法，根据这个算法，本文计算了在一定物理尺寸下该天线阵列的电流分布和端口导纳矩阵。

Based on Crank-Nicoson's technique, and a new approach for the numerical simulation of the model is raised. The truncation error of the one step difference method reaches O (△t^2+△x^2) and of quite good stability condition.

基于Coriolis加速度和Lagrangian应力公式，利用Newton第二定律导出轴向加速度运动弦线横向振动的动力学模型；通过线性变换将方程化为一阶无量纲的非线性微分方程组；并利用Crank-Nicoson的中点离散技巧，给出运动方程的单步二阶差分方法；算法把对运动方程和本构方程分别离散，使之可以用于不同本构的运动弦线的数值仿真。

After applying Ewald summation technique,numerical interpolation and parallel computing,the speed was raised by5×106xiitimes!

通过利用Ewald求和技巧，数值插值及并行计算，将速度提高了约5×106倍！

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。