Based on such a pipeline corrosion model, an elastic foundation beam model is employed to express the seismic displacement and stress of pipeline as orthogonal cosine series.

1、

Firstly, Airy stress function and the distributions of the membrane forces are determined by the combination of double cosine series.

首先采用双重余弦函数的组合确定了面内冲击矩形薄板的艾雷应力函数和中面力的分布；

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2、

The flexural problems of orthotropic rectangular plate with four free edges rested on elastic foundation have been discussed in this paper and analyzed by the Fourier trigonometrical cosine series and double trigonometrical cosine series.

本文利用Fourier双三角余弦级数和单三角余弦级数，讨论和分析了弹性地基上四边自由正交各向异性矩形板的弯曲问题。

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3、

L1-convergence of Fourier cosine series with coefficients of bounded variation had been researched in [ 1].

文献[1]的定理2中，研究丁有界变差系数的条件下，Fourier余弦级数的L~1收敛问题。

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4、

In order to quickly get the decision-making, vector cosine law is used for searching similarity cases. Compared to the use of words searching, it takes more less time to get the most similarity case.

为了快速得出决策，提出利用向量余弦法进行案例的相似度搜索，相比文字查询方法在时间上少了一个数量级。

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5、

The Importance of the Various Solutions to One Question-Supported by the Methods of the Addition Theorem of the Cosine Law; Residual dentin thickness in upper anterior teeth after root canal preparation

用余弦的加法定理不同的证明来说明一题多解的重要性上颌前牙三种不同方法根管预备后剩余根管壁厚度的研究

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6、

The results show that backward electron emission yield deviates from inverse cosine law, due to the role of the valence electrons of H2+.

研究发现背向的电子发射产额不满足余弦关系，这是由于H2+上的价电子所引起的。

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7、

In this paper, the cosine law of general closed planar broken line is acquired by generalizing cosine law of triangle.

将三角形中的余弦定律进行推广，得到一般平面封闭折线的余弦定律。

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8、

Solving and Measuring Parameters by Cosine Law

利用余弦定理求解测设参数

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Solution of Simultaneous Equations of Cosine Law Arising from Subjectivity Geometry

主观几何中一组余弦定律方程的解

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10、

The Cosine Law of General Closed Planar Broken Line

一般平面封闭折线的余弦定律

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11、

The best result is obtained with cosine function of Forman method.

但采用Forman相位校正法时，不同切趾函数对校正结果的影响明显不同。

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12、

An Iteration Algorithm for Measuring Frequency and Phase of Cosine Function

余弦信号相位和频率测量的迭代算法

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13、

The applications of the logic sine cosine function in digital electronics

逻辑正弦－余弦函数在数字电子技术中的应用

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Analytic Orthogonalization of Direction Cosine Matrix

方向余弦矩阵的解析正交化

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15、

Introduce the principium and method of Euler angle algorithm, direction cosine algorithm, Quaternion algorithm, and Rotation Vector algorithm.

分别介绍了欧拉角法、方向余弦法、四元数法和等效旋转矢量法的解算原理和步骤。

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16、

The angle displacement of tested body is confirmed with the method of direction cosine, the mathematical model of angle displacement is established.

以方向余弦法来确定被测体的角位移，建立其角位移数学模型。

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17、

Algorithm of transfer vector for tool semidiameter compensation base on direction cosine

应用方向余弦的刀具半径补偿转接矢量算法

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18、

Coordinate Transformation Based on Direction Cosine Parameters between the Object Coordinate System and the Word Coordinate System

基于方向余弦参量的物坐标系与世界坐标系间的坐标变换

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19、

A new method for calculating strapdown direction cosine matrix

求解捷联式方向余弦矩阵的一种新方法

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20、

Iterative method founding displacement equations and direction cosine equations of robot

建立机器人位移方程和方向余弦方程的迭代法

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