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Presents the design of longitudinal control for ASTOVL lift-fan aircraft, a multi-variable, strong-coupling, complicated nonlinear system to make the system nonlinear offset and decouple, and the method used for linear system in designing the system to gain expectant flying qualities and the combination of aerodynamic control surfaces with thrust vectors to delay the control surfaces getting into saturation, and the minimum N-norm generalized inverse theorem of weighted generalized inverse adopted to apportion the moments commands, which make the control surfaces gain appropriate deflection and the simulation results to verify the dynamic inverse control laws designed really make the system nonlinear offset and decouple; when one command is given, only this output will response, and others do not response; when all commands are given together, the responses will be just the linear superpose of the response of each command, therefore the operation of the pilot will be simplified greatly.

摘 要： ASTOVL升力风扇飞机是多变量、强耦合、复杂的非线性系统，采用非线性动态逆理论设计控制律以实现系统的非线性对消及解耦，然后，采用线性系统的设计方法对系统进行设计，以使系统获得期望的飞行品质。同时，考虑到ASTOVL升力风扇飞机是由气动舵面和推力矢量融合作用的，为了延缓各舵面进入饱和的时间，采用加权广义逆中的极小N-范数广义逆定理分配力矩指令，从而使各舵面达到适当的偏转角。并将所设计的控制律进行了仿真，结果验证了所设计的动态逆控制律使系统实现了非线性对消和解耦，单个指令作用时，只有该项响应，其余不受影响；所有指令作用时，其结果就等于单个指令作用时的线性叠加，这样使驾驶员的操纵大大简化而易于控制，从而大大降低了飞行事故率。

Then we have compared the directional characteristic of the basic wavelets; according to the property of impulse function, we have simplified the formula of inverse transformation.

针对二维信号处理中的波场分离，引入了方向性小波的概念，将其用于信号波场分离，对比了三种基本小波的方向特性；根据函数的性质，提出更为简单的二维连续小波反变换公式。

At first, the conventional elastic parameters inversion based on Shuey formula and simplified Shuey formula is discussed for the model of Chinese and Mexican, and the errors of inversion elastic parameters is analyzed.

对于不同地区、不同深度的含气和含水砂岩等各种模型其反演参数的误差情况不同，并且利用不同的入射角度对应的反射系数反演的误差也相差很大，许多情况反演的误差甚至非常大，没有一定的规律可循。

Ceramics and soldering iron. With white and blue porcelain and powder colors, Wu created the nonobjective half-length statue, bright and vivid in color. Through repeated application of symbols in Chinese traditional ceramics, the ornaments on the household wares were finally turned into a cultural symbol of extremely simplified human figures. That is how Wu handled the transformation from traditional to modern.

青花和粉彩的近乎抽象的陶瓷半身人像，被赋予鲜艳的色彩，传统陶瓷提炼的符号不断重复，从附着于器物用品的装饰转而成为极简的现代人形的文化符号特征，完成了现代与传统的对话，是颠覆也是重生。

The relationship between 8 isometry transforms matrix and its corresponding invert matrix was given and the calculation of fractal codes was simplified.

此外，还给出了8种旋转变换矩阵与其对应逆矩阵的关系，从而进一步简化分形码求解。

Calculation method of a reinforced concrete isosceles trapezoid slab is experiential arithmetic with which the isosceles trapezoid slab is simplified into an equivalent rectangled slab.

计算钢筋混凝土周边固支等腰梯形板通常是用经验算法即是把钢筋混凝土等腰梯形板简化成当量矩形板进行计算。

By assuming the electron temperature is isotropic, the curvature force term is simplified to the term shown on the right hand side of Equ.

假设电子温度是各向同性，曲率队来说是简体的名词所示，右及计。

The Jacobian matrix is divided into four submatrices,andthe derivation of each submatrix is simplified.

给出了子矩阵的递推算法，提高了Jacobi矩阵的计算效率。

In mechanics kinematics, Jacobin matrix may be calculated and simplified by vector constructing; Inverse solution and its restricting condition be given; Forward solution be solved by new-raphson method. The method need shorter time than optimization and has a lot of advantages in applying program; some relationship of velocity, acceleration, force and error of mapping from input to output have been given. Analyzing of theory base these researches.

在机构运动学研究方面，通过矢量构造的方式计算出了速度雅克比矩阵，简化了计算量；给出了机构位置逆解的计算过程及约束条件；利用Newton—Raphson法计算出了机构位置的正解，该算法比优化法计算时间短，而且利于实际编程；给出了机构输入、输出端速度、力、误差的映射关系，这些研究是机构理论分析的基础。

While the idea and the prototype of the three-degree-of-freedom motor came into being, it is more convenient to realize the motion of the robot joint where the demand on workspace is low but three DOF is required. It also combines the merits of simplified system construction, minimized machine volume, improved dynamic and static performance with high position accuracy.

三自由度球形电机设计概念及样机的出现，使得机器人关节的空间三维运动可以在一个较小的工作空间中完成，简化了系统结构，减小了机构体积，有利于提高系统的动、静态性能和定位精度。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。