查询词典 normalized basis

In this paper, we have made a systemic theoretic research on modelling and reshaping several types of spline curves/surfaces in CAGD. And some creative productions are given as follows. At first, the uniform C-B-spline basis is proved to be a normalized totally positive basis, and can be extended to a normalized B-basis. C-B-spline and C-Bézier basis, similar to B-spline basis and Bézier basis in algebraic space, are two bases in algebraic trigonometric space.

本文围绕着CAGD中常用的几种曲线曲面造型和形状调整进行了深入的研究，主要获得了以下一些成果：首先，证明了代数三角空间中的n次均匀C-B-spline基是一组标准全正基，并进一步扩充为一组标准B基。C-B-spline基与C-Bézier基是多项式与三角混合空间中的两组基，是适应工程实践中设计特殊曲线曲面的需要而产生的，类似于多项式空间中的B-spline基与Bézier基，是CAGD中重要的造型工具。

An experimental formula of bending loss is suggested on the basis of conformal transformation and normalized approach used in analysis of curved optical waveguides.

介绍了分析波导弯曲损耗的保形变换法和归一化方法以及由此得到的波导弯曲半径与弯曲损耗的关系式。

After a 10-year relation of deterioration from the late 1970's to 1980's,Sino-Vietnam relations have eventually normalized,on the basis of equality andmutual benefit,since 1990's.

经过70年代后期到80年代10多年的交恶之后，90年代中越两国终于抛弃了过去的恩怨，在平等互利的基础上实现了关系正常化。

Several key issues related to damage identification of structural health monitoring are expounded. A method for damage positioning, which is on the basis of the normalized change ratio of frequency, is developed. Then, a set of damage identification techniques based on modal parameter and neural network is put forward.

阐述结构健康监测中损伤识别的关键问题，介绍基于正则化的频率变化率的损伤定位方法，提出一套基于模态参数和神经网络的损伤识别技术。

At last, the author brings forward some own ideas about most domestic enterprises' equipment normalized management building on the basis of the practices of SZ Airport equipment normalized management building.

最后，结合SZ机场设备规范管理项目中的具体实践，笔者对我国企业设备规范管理的建设提出了一些自己的思考。

The system matrices of the local linear models are full parameterized and normalized radial basis functions are used for the weights.

局部状态空间模型用全参数化形式描述，同时选用正则化径向基函数作为分状态的加权因子。

On the basis of SIF normalized coefficient values gained from a vast amount of fatigue crack Propagation experiments, the approximate expressions of stress intensity factor on the deepest Point and surface Point of surface crack are obtained by means of stepwise regression analysis.

在大量疲劳裂纹扩展实验取得的SIF正则系数值的基础上，用逐步回归分析得到了这种情况下表面裂纹最深点和表面点的应力强度因子近似式。

They are presented in need of special curves and surfaces in engineering applications. In order to prove that the uniform C-B-spline basis is normalized totally positive, we compute the matrix which transforms the C-Bézier basis into the uniform C-B-spline and decompose this matrix into a product of. bidiagonal and stochastic factors.

本文用递推的方法，计算出代数三角空间中的n次C-Bézier基与n次均匀C-B-spline基之间的转换矩阵，并把该矩阵分解为一系列二对角阵的乘积，从而证明出n次均匀C-B-spline基是一个标准全正基，进一步用插入节点的方法，把它扩充为一组标准B基，从而我们可以利用B基的很多优良性质，在工程应用中对这两组基进行开发利用。

They are presented in need of special curves and surfaces in engineering applications. In order to prove that the uniform C-B-spline basis is normalized totally positive, we compute the matrix which transforms the C-Bézier basis into the uniform C-B-spline and decompose this matrix into a product of. bidiagonal and stochastic factors. Furthermore, we give a normalized B-basis by inserting knots.

本文用递推的方法，计算出代数三角空间中的n次C-Bézier基与n次均匀C-B-spline基之间的转换矩阵，并把该矩阵分解为一系列二对角阵的乘积，从而证明出n次均匀C-B-spline基是一个标准全正基，进一步用插入节点的方法，把它扩充为一组标准B基，从而我们可以利用B基的很多优良性质，在工程应用中对这两组基进行开发利用。

Therefore, it can be regarded as a great improvement of the investment decision-making theory and methods .This article makes a systematic research on real options theory and method and its application, including the following several main aspects:Firstly, it makes a detailed discussion about the common theoretical basis of financial options and real options, including no-arbitrage equilibrium principle, risk-neutral definition, complete market and dynamic tracking.Secondly, it analyze three basic characteristic of investment decision-making in modern market economic system: irreversibility, uncertainty and flexibility, and from the angle of their mutual quantitative and qualitative interactions, it makes a comparison between the traditional NPV methods and real options methods and makes a summary of the general analytical methods of real options.Thirdly, it discusses the all elements in the application of real options such as the ^leakages in value of real assets, basis risk, and private risk, and furthermore, it attempts to put forth a normalized strategy of its application and construct a basic framework of its application.Fourthly, it applies real options theory to strategetic investment of enterprises and the buy-out of company, putting forth a value model for strategetic investment program and making a concrete analysis of its application to buy-out. Furthermore, it advocates that a flexible investment decision-making system should be setup according to real options theory in our country.

本文对实物期权理论和方法及其应用进行了系统研究，主要内容包括如下几个方面：(1)详细讨论了金融期权和实物期权共同的理论基础，主要包括无套利均衡原理、风险中性定义、完全市场以及动态复制方法，对这些理论方法的探讨既是本文的出发点和基础，它们提供了研究实际应用实物期权的一个基准点，也是贯穿全文的线索和灵魂；(2)分析了现代市场经济体系中投资决策的三个基本特征即不可逆性、不确定性和时机选择，并从它们数量上和质量上相互作用的重要意义的角度，分析了传统的净现值法与实物期权方法的差异，指出了净现值法在不确定环境中存在的缺陷及实物期权处理投资灵活性的价值，并将净现值法纳入实物期权投资分析决策体系当中，总结了企业投资决策实物期权的一般分析方法；(3)探讨了实物期权应用中要考虑的各种要素，如实物资产的价值漏损、基差风险和非市场风险等，并进一步提出了实物期权应用的规范化策略和构建了一个实际应用实物期权方法的基本框架，尝试将期权的基本原理与企业在现实经济环境中投资决策的要素结合起来，从而可以在一定程度上超越期权的复杂的数学计算而汲取期权思想的精华，从而促进期权决策方法在实际投资决策中的应用；(4)将实物期权方法应用于企业战略投资，得出了战略投资项目的价值模型，指出可以将实物期权理论和方法应用于企业并购，分析了应用的具体方面，并提出应根据实物期权理论建立一套适合我国企业的灵活的投资决策系统。

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。