角度变换

Therefor, step motor can be used as executive component in open-loop control system, which simplifies the control system deeply.

步进电动机是数字控制系统中的一种执行元件，其功能是将脉冲电信号变换为相应的角位移或直线位移，即给定一个脉冲电信号，电动机就转动一个角度或前进一步。

Wavelet transform can be seen as translating an image into coordinate of orthogonal basis.

从函数正交分解的角度看，小波变换可以看作把图象的象素点转换成一系列正交小波基的坐标或者说是投影，每个坐标对应着这些基的能量大小。

The main results are as following: A A new demonstration to optical theorem is constructed B The scattering amplitude function for small particles, which is more accurate than that in classical RGB, is gained using electrostatics approximation, C Through a δ transform to the high frequent oscillation function, a concise deduction of the EG-type scattering amplitude function has been achieved.

主要结果如下： A给出了光学定理的一个新证法； B利用静场近似，得到了比经典RGB更精确的小粒子散射振幅函数； C通过一个高频振荡函数的δ变换，给出了一种EG散射振幅表达式的简明推导，并做了小角度散射简化，参照ADT，对EG近似又做了相位修正； D定义了一个新的函数—消光函数，并得到了组合散射体消光函数的平均定理。

Secondly, transform the original model to a new one: using market value of stock to replace par value of debt or stock, in order to study the company's financing activity through angle of view in market.

变换基本模型：包括选择新指标建立新模型，采用股权的市值作为因变量，从市场的角度审视公司的融资行为；采用债权和股权的加权平均数据作为因变量，寻找最适合中国上市公司的融资比例。

Second, the author proves the transformation of parallel translation can make discrete data more smooth, so can revise prediction error.

其次，从实用的角度应用了一种平移技巧，并证明了这种平移变换确实可以提高离散数据的"光滑性"，从而提高预报精度。

This paper studies the concrete implementation flow of contour-based retrieval based on wavelet transform modulus maxima , multi-scale morphology and invariant relative moments. Also, experimental results are given to validate the feasibility of our strategy and the corresponding retrieval performance is analyzed.

从理论和技术的角度研究了在基于目标形状的遥感影像检索中，应用基于小波变换模极大值和多尺度形态学的边缘检测方法以及基于不变相对矩的轮廓特征描述方法的具体实现技术流程，通过实验充分验证了本文方法的可行性，并分析了检索性能。

The main work of this paper is to study and develop a charging power supply for energy storage capacitor in pulsed power system. Firstly, analyze and study the series-resonant converter from the perspective of the minimum component stress.

本论文的主要工作是研究和开发了一种用于电容储能式脉冲功率系统前级电容充电的电源，首先从最小应力的角度对串联谐振变换器进行了分析和研究。

In the study of the Lagrange stability of impact motion, we give some conditions of the bouncing solution of the asymptotically linear equation which is bounded or unbounded. Outside of a large disc, using the symplectic transformation of the Hamilton system to estimate the iteration of the successor map. Applying the Moser's small twist theorem, we get the invariant curves and then give the proof of the bouncing solutions which is bounded. We will estimate the successor map of the equation directly for proving the unboundedness of the bouncing solutions.

在碰撞运动的Lagrange稳定性的讨论中，给出了渐近线性方程碰撞解有界或无界的条件，在充分大的圆盘外，通过Hamilton系统的辛坐标变换的角度平均来估计后继映射的迭代，应用Moser小扭转定理得到不变曲线从而给出在一定条件下碰撞解有界的证明，碰撞解无界性的证明将采用直接估计后继映射的方法给出。

Turn-of-the-century eras have historically been times when people are more than usually inclined to scrutinize the present and speculate about the future.

以历史的角度观之，世纪变换的年代已成为人们更倾向去检视现在及思索未来的时刻。

Through carries on the Hough transformation after the license plate outline, with one kind of new K average value algorithm fits the edge straight line, obtains the straight line angle of tilt then to carry on the adjustment to the image; Uses one kind of fast pattern plate match union vertical and the horizontal axis projection carries on the division to name board various characters, raised the character division speed and the precision; Finally separately carries on the recognition to the alphanumeric character and the Chinese character character, the alphanumeric character uses the BP neural network algorithm, but the Chinese character character uses based on the most close neighbor sorter template matching algorithm.

通过对牌照轮廓进行Hough变换后，用一种新的K均值算法拟合边缘直线，得到直线倾斜角度进而对图像进行校正；采用一种快速的模版匹配结合垂直与水平投影法对船名牌上的各字符进行分割，提高了字符分割的速度和精度；最后分别对数字字符和汉字字符进行识别，数字字符采用BP神经网络算法，而汉字字符采用基于最近邻分类器模板匹配算法。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。