状态变换

The information along3 D maximum shear stress tracing line is completely ascertained with the method of parameter transformation, then the changing rule of the normal stress along3 D maximum shear stress tracing line is discussed based on cobevel method.

利用坐标变换法证明了一般三维塑性流动问题任意点应力状态，可以完全由三维最大剪应力迹线上的信息确定，进而利用共斜面法给出了三维塑性流动问题沿最大剪应力迹线正应力的变化规律。

Based on wavelet transformation and chaos theory, this paper presents a condition forecasting method for complex systems.

应用小波变换和混沌理论对复杂系统状态预测方法进行了研究。

Based on wavelet packet transformation and chaos theory, the research on forecasting method of complex system condition is made.

基于小波包变换和混沌理论对复杂系统状态预测方法进行了研究。

The operation condition of a series-resonant converter is equivalently analyzed under open-loop condition. OCC condition and selection basis of resonant parameter and switching frequency are determined. The relationships between LED number, transformer turns ratio and constant current error are also determined, which provide scientific basis for the selection of LED number and transformer turns ratio.

文中通过对串联谐振变换器开环工作状态的等效分析，确定开环恒流条件和谐振参数与开关频率的选择依据，以及LED数目、变压器变比与恒流误差之间的关系，为LED数目及变压器变比的优化选择奠定了理论基础。

Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array, a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the Euler's theorem and the coordinate transform is introduced.

由于猎雷艇作为动基座的存在和声纳基阵的框架结构特点，提出了以艇体坐标系为运动坐标系，运用变形的欧拉定理和坐标变换建立声纳基阵相对自身坐标系的旋转运动方程的建模思想；将所建立的矢量形式的动力学模型展开整理，获得了状态矩阵形式的猎雷声纳基阵动力学方程，为系统动力学模型的实用化奠定了基础。

Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array,a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the Eulers theorem and the coordinate transform is introduced. The dynamic equations of minehunting sonar array with the state matrix form are founded by settling the dynamic models with the vector form. So it offers theory foundation for analyzing the dynamic characteristic and designing robust control.

由于猎雷艇作为动基座的存在和声纳基阵的框架结构特点，提出了以艇体坐标系为运动坐标系，运用变形的欧拉定理和坐标变换建立声纳基阵相对自身坐标系的旋转运动方程的建模思想；将所建立的矢量形式的动力学模型展开整理，获得了状态矩阵形式的猎雷声纳基阵动力学方程，为系统动力学模型的实用化奠定了基础。

The design principle and process in detail are given by using an interpolative structure in state space and the transfer function conversion, then the noise transfer function is realized by optimized zero and Butterworth poles.

该算法采用状态空间下通用的插值型结构，研究了设计原理和设计的详细过程，给出了传输函数变换和稳定条件，实现了零点优化和巴特沃思极点的噪声传递函数。

Researching and developing riderless bicycle is a important work offering scientific and actual significance . Internal and overseas research actuality was summarized in this paper , existent problems was analyzed , and then primary development direction of riderless bicycles was presented .

而自行车机器人实际上就是一种无人驾驶的自行车，因此，自行车机器人的控制问题相当困难，如不能采用连续或可微的纯状态反馈实现系统的渐近稳定，不能采用非线性变换实现整体线性化等。

Considering that magic cube is easy to disarrange and hard to solve, I designed the Magic Cube Stream Cipher: the main part is a virtual cube filled with data; by turning the magic cube many times, original data are disarranged and new ones are generated; new data serve as current secret key, which is a part of the key stream.

我根据魔方&打乱容易恢复难&的特性，设计了魔方流密码算法：主体是一个由数据构成的虚拟魔方；利用多次魔方变换改变数据&魔方&的整体状态并生成新的数据；以此作为本次加密运算的密钥。

Using the state-space average modeling method, a nonlinear affine model of Boost converter working on current conduction mode is set up.

采用状态空间平均建模方法，建立了CCMBoost变换器的非线性仿射模型。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了