contact transformation

It is put forward that a new kind of pole-changing winding of Phase-group -interchange with A/A A connection and its way of Pole-changing switchover without interruption of POwer supply.

本文分析了典型的变极绕组及其变极切换方式。

In order to renew the image that is attacked by shear transformation,an extended digital image encryption algorithm is proposed based on chaotic sequences.

为了能对经过剪切变换攻击的加密图像进行有效恢复,给出了一种基于混沌序列的数字图像加密算法,该方法在预处理的基础上,基于数字图像灰度矩阵位平面进行置乱加密,在恢复过程中通过象素邻域灰度信息进行恢复,能够有效抵御针对加密图像的剪切变换攻击,同时给出了一种非线性的、应用高维混沌系统产生二值序列的方法。

In order to renew the image that is attacked by shear transformation,an digital image encryption algorithm was proposed based on chaotic sequences.

为了能对经过剪切变换攻击的加密图像进行有效恢复,给出了一种基于混沌序列的数字图像加密算法,该方法在预处理的基础上,基于数字图像灰度矩阵位平面进行置乱加密,在恢复过程中通过像素邻域灰度信息进行恢复,能够有效抵御针对加密图像的剪切变换攻击。

It is studied that the geometry of the differential equations of the fourth order y (4) =f(x,y,y′,y″,y) under contact transformations by E.

Ｃａｒｔａｎ的等价方法，研究切触变换下四阶微分方程ｙ（４）＝ｆ（ｘ，ｙ，ｙ′，ｙ″，ｙ）的几何。

A shear is a transformation that produces a mirror image of an object.

（错切变换是产生物体镜像的一种变换。）

Design of differential input circuit based on inverse tanh;

基于反双曲正切变换的差动输入电路的设计

Switching Rule Based on Min-projection Strategy of DC-DC Converters

DC-DC变换器的最小投影法切换律

Using Shear Invariant and Recursive Cycle Spinning for Image Denoising in Contourlet Domain

基于剪切不变的递归Contourlet变换图像去噪

SWITCHOVERSWITCHOVER:AP A;

切换SWITCHOVER:AP A;

SWITCHOVERSWITCHOVER:RCS A;

切换SWITCHOVER:RCS A;

Min-projection-strategy switching rules for DC-DC converters modeled as piecewise linear systems

DC-DC变换器分段线性系统的最小投影法切换律

TRANSMISSION CONTROL RELAY OUTPUT (Switched B )

变速控制继电器输出（切换Ｂ（+））

Robust Invariance Switching Control for Nonlinear Cascade Systems;

非线性级联系统的鲁棒不变切换控制

Design of Automation Switch of Pumps to the Control of Frequency Variable System by PLC;

变频恒压控制中PLC自动切换程序设计

Stability Analysis of a class of Periodically Switched Linear Time-varying Systems

一类周期线性时变切换系统的稳定性

The Triangle in the Circle and the Stability under the Change of Projecting the Triangle on the other Coordinate;

圆内切三角形及其在仿射变换下的不变性

The switchover process changes the ACTIVE/STANDBY designations of the RCS mates that are paired across APs.

切换过程会改变在AP间RCS对的ACTIVE/STANDBY标示。

VF-FF synchronous switchover controller for revolving air preheater

回转式空气预热器变频-工频同步切换控制器

Calculating Formula of Chebyshev Impedance Transforming Network of Low-pass Filter Form

低通式切比雪夫阻抗变换网络的计算公式

Dual-tree Complex Wavelet Transform for Chip Images Threshold Denoising

基于双树复数小波变换的切屑图像阈值去噪

The Phase-Locked Synchronization Control System of AC Motor Variable Frequency/Work Frequency Switching;

交流电机变频/工频运行切换锁相同步控制系统

The Study of Stability of Impulsive Switched Systems on Partial Variables

脉冲切换系统关于部分变元的稳定性研究