查询词典 weighted function

More than 30 kinds of meshfree methods are reviewed in this paper in the light of weighted residual method, and different meshfree methods can be viewed as different forms of weighted residual method and/or with different approximation functions. Various kinds of meshfree approximate schemes are presented in detail, including moving least square approximation, kernel and reproducing kernel approximation, partition of unity approximation, radial basis approximation, radial point interpolation and natural neighbor interpolation.

详尽介绍了各种无网格近似方案(包括移动最小二乘近似、核近似和重构核近似、单位分解近似、径向基函数近似、点插值近似、自然邻接点插值近似等)和无网格法中常用的各类加权余量法(伽辽金格式、配点格式、局部弱形式、加权最小二乘格式和边界积分格式等)，并讨论了数值积分方法和边界条件的处理等问题。

The method of exacting the percolator replacing time comprises the steps of:(1) examining the air pollution degree when the air cleaner is driven,(2) comparing the examined air pollution degree to at least one presettable reference value, applying corresponding weighted,(3) confirming the percolator replacing time by weighted and percolator replacing time.

确定过滤器更换时间的方法包括如下步骤：（1）当驱动空气净化器时检测空气污染程度，（2）比较测得的空气污染程度和至少一个预设定的参考值，应用对应的加权，（3）按照应用的加权和过滤器操作时间确定过滤器更换时间。

A phase angle of the fading vector which is subjected to the weighted-averaging is compared with a phase angle of the fading vector which is subjected to the weighted-averaging calculated previously.

受到加权平均的衰减矢量的相位角被与受到预先计算的加权平均的衰减矢量的相位角相比较。

Morevoer, on basis of the weighted polar decomposition, the simultaneous weighted polar decomposition of matrices is also defined and studied.

在对加权极分解研究的基础上，我们定义并讨论了矩阵的同时加权极分解。

They are all important research topics of matrix theory. In this thesis, we mainly study problems on weighted generalized inverses, weighted polar decomposition, and partial orderings of matrices.

矩阵的广义逆与极分解在数值分析，矩阵逼近等方面都有很重要的应用，是矩阵理论的重要研究内容。

A new type of polar decomposition—weighted polar decomposition of matrices is presented and defined. Aim at this new matrix decomposition, we prove its uniqueness theorem and obtain its uniqueness conditions, and also investigate the best approximation property of weighted unitary polar factor.

矩阵的极分解和广义极分解一直是矩阵分析研究的重要内容，本文中我们对其进行了横向扩展，提出并定义了一种新的极分解形式—矩阵的加权极分解。

Meanwhile, we also provide methods for computing the weighted polar decomposition, and study error bounds for the approximate generalized positive semidefinite polar factor and perturbation bounds for weighted polar decomposition in various norms.

针对这个新的矩阵分解，我们证明了其唯一性定理，给出了其唯一性条件，讨论了其极因子的最佳逼近性质；同时，我们还探讨了矩阵加权极分解的计算问题，研究了由迭代算法引起的极因子的误差界，极因子在各种范数下的各种形式的扰动界等。

Polynomial time approximation algorithms were proposed for edge un-weighted case and edge weighted case respectively.

就输入图的边是否带权，分别设计了多项式时间近似算法。

The subjects of the study are Olympic Games of 1992, 1996 and 200. By use of quantile regression to formulate the econometric model, some variables of the participating countries are taken as independent variables. Variables such as the size of the participating countries, population, economic capacity, construction capacity, globalization and mobility are the examples. It is to explore the effects of the total signal for medal-won numbers when the dependent variable is the principal component, CGW weighted medal-won numbers, and LGdd weighted medal-won numbers.

本研究以1992年、1996年和2000年的各届奥运为研究对象，利用分量回归法建构其计量模型将各参赛单位的疆域、人口数、经济能力、建设能力、世界性与流动性做为自变数，分别探讨应变数为主成份总指标得牌数、CGW加权得牌数、LGdd加权得牌数时的影响。

In the optimal control of kinematics for redundant robots, two new concepts, the matrix weightability measure and the self-motion declinability measure are proposed. Further, a modified weighted gradient projection method which combines gradient projection method with weighted least-norm solution is presented, it can attain ideal optimal effects at low velocities.

本文对冗余自由度机器人的运动学、动力学和容错等方面的优化控制进行了深入的分析和探讨：在冗余度机器人运动学优化控制方面，提出矩阵可加权度和自运动可衰度的概念，将梯度投影法和加权最小范数解法有机的相结合，形成可优化能力强、关节速度较低的改进的加权梯度法。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。