余弦

Strength of SPBT was numerically explained on the base of Perdersen discharge model of ellipsoid void, and the conclusion was got that the discharge strength of void was an inverse measure of the cosine of oriented angle of void.

本文首次利用Perdersen的棉球气孔放电模型，定量解释了SPBT瓷体局部放电起始场强的大小，并得到瓷体中气孔发生放电的外施场强与此气孔取向角余弦成反比的结论。

Based on the analysis of the influence to the testing result induced by the roller parameters, such as the diameter, attachment coefficient and locating angle, the thesis proves that, through construction of a mechanics model of the rig to calculate the biggest braking forcing which can be detected, the detectible braking force has a direct ratio with the roller attachment coefficient and a inverse ratio with the cosine of the locating angle.

在分析了汽车滚筒反力式制动检验台的滚筒直径、滚筒的附着系数及安置角对检测结果影响的基础上，通过建立力学模型计算汽车滚筒反力式制动检验台所能检测到的最大汽车制动力得出结论：汽车滚筒反力式制动检验台所能检测到的制动力与滚筒的附着系数成正比，与安置角的余弦成反比。

Am1 integer-output 8x8 inverse discrete cosine transform.

执行整数输出8x8反向离散余弦变换精度。

The layered video decoding system comprises a base layer decoder for receiving and decoding a base layer video stream; and an enhancement layer decoder for receiving an enhancement layer video stream and the decoded base layer stream, and generating a decoded enhanced video output, wherein the enhancement layer decoder includes: a plurality of inverse discrete cosine transform /IDCT modules; and a selection system for selecting one of the IDCT modules.

分层视频译码系统包括：基本层译码器，用于接收和译码基本层视频流；和增强层译码器，用于接收增强层视频流和所译码的基本层流，并生成译码的增强的视频输出，其中该增强层译码器包括：多个反离散余弦变换模块；和用于选择其中一个IDCT模块的选择系统。

This paper proposes a novel interpolator that is the All Phase Inverse Discrete Cosine Sequency Filter. Based on the theory of the All Phase, the APIDCSF considers the surrounding samples'influence on the center one throughly, and takes the average of IDCT orthogonal filtering of surrounding sampling blocks which include the center sample as its orthogonal transformed value.

在全相位理论的基础上，充分考虑了周围邻域对中心样本的影响，以包含该中心样本的所有邻域正交变换滤波的均值作为其正交变换滤波值，构造了全相位离散反余弦列率滤波器组(All Phase Inverse Discrete Cosine Sequency Filter， APIDCSF)，其内插性能好于高阶消失矩的环形Neville滤波器。

In the method the discrete cosine transform DCT is first applied to noisy facial images to remove its high frequency component noise, the removed noisy face images can be obtain through performing inverse discrete cosine transform. Then the two dimensional principal component analysis (2DPCA) is exploited to the removed noisy face images to obtain a set of eigenvectors that have larger correspondent eigenvalues, and the features of images with lower information dimensions are extracted to get fast recognition speed.

这方法首先对具杂讯脸部影像进行离散余弦转换去除高频杂讯，取得低频影像以降低高频杂讯干扰，然后再对低频影像以二维主分量分析(2DPCA)撷取前几个较高特徵值所对应的一组特徵向量，以降维与资讯集中达到快速辨识的目的。

The harmonic field of electric dipole source on the uniform earth surface is converted into transient field by inverse Laplace transform,and the Bz/ t transient curve is calculated.The Hz transient curves on the stratified earth surface are obtained from cosine transform calculated by broken line approximation.

由逆拉普拉斯变换将均匀大地面上的电偶极子源谐变电磁场转换为瞬变电磁场，并计算出Bzt瞬态曲线；对分层大地面上的瞬变电磁场，采用折线逼近法计算余弦变换得出Hz瞬态曲线。

Using the NCEP/NCAR 1°×1° analysis data with a time resolution of 6 h, the Regional Spectrum Model reanalysis data from Japan Meteorological Agency with a horizontal resolution of 20km and a time interval of 6 h, we decompose the horizontal wind of super-intensity Typhoo SAOMEI (0608) based on the H-C method. The two parts are called the nondivergent and the irrotational components, respectively.

利用NCEP/NCAR 1°×1°的实时分析资料和日本气象厅区域谱模式20km分辨率的再分析资料，利用调和-余弦算法得到的无辐散风分量和无旋风分量，对2006年的8号超强台风"桑美"进行风场结构的比较分析。

The law of cosines unilaterally has many applications in it, presently specifically chooses the good problem solving method on the concrete question.

正余弦定理都在其单方面有很多应用，现就具体问题具体选择出较好的解题方法。

We would simply require them to recognize, appreciate, and memorize the great pieces of language of the past - literary equivalents of the Pythagorean Theorem and the Law of Cosines.

我们只会需要他们认识、欣赏、记住过去时代语言方面的伟大篇章——就好比是数学中毕达哥拉斯定理和余弦定理。

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。