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On the basis of propulsive model,a mathematical model which is used to describe the motion of pitching and heaving of dolphin's caudal fin by ways of coordinate transformation is deduced.Meanwhile,this model can show the relationship between the motion of caudal fin and parameters related,then the motion of caudal fin of dolphin is simulated by the software of Matlab which showed the swimming principle.

以海豚背腹式摆动推进方程为基础，应用坐标变换的方法，建立了描述海豚尾鳍俯仰－沉浮运动的数学模型，同时建立了描述豚尾各运动参数之间关系的方程，随后运用Matlab的仿真功能再现了海豚在游动过程中尾鳍的运动规律。

The tempral properties of the nonlinear refraction in Cadmium porphyrin and Methyl orange areproposed by pump-probe technique.It can be used as all optical switch based on nonlinear refractioneffect.It was numerical simulated and analyzed theoretically.

利用泵探技术测量了类卟啉镉氯仿溶液和甲基橙水溶液非线性折射效应的时间特性，并指出这一效应可用于实现折射型全光开关，从理论上分析了双光束技术折射效应的时间特性。

Two operation headquarters were set up from where 'Blue and 'Fox' air forces engaged in simulated fully-fledged actions in concert with ground troops and army aviation.

两个营运总部，分别成立了从那里'蓝'狐'空军从事模拟全面行动音乐会与地面部队和陆军航空兵。

In the time domain, generation and propagation of aerodynamic noise are simulated using the two-step method and CAA respectively .

在时域内分别采用&两步法&及计算气动声学方法对气动噪声的产生及传播进行了数值模拟。

The dynamic loads of the whole aircraft in the asymmetric landing are simulated by means of an initial roll angle of aircraft.

研究了飞机非对称着陆和滑跑载荷的分析方法。

The Fuzzy-PID controller of fin stabilizer was designed based on fuzzy control and PID control theory. The controller of Fin Stabilizer is designed which uses roll angle and angular velocity of roll angel as input and fin angel as output. The model of ship is built based on Conolly theory. The controller is simulated using MATLAB. Results shows that compared with conventional PID controller, the FUZZY-PID controller has better effect.

设计了基于模糊控制和PID控制理论的FUZZY-PID复合控制减摇鳍控制系统，以横摇角和横摇角速度为输入量，鳍角为输出量，基于Conolly理论建立了船舶模型，利用MATLAB针对不同海情对控制器进行了仿真，结果表明减摇鳍模糊控制器动态响应性能和稳态控制精度均十分理想，能够满足减摇鳍控制系统的控制要求。

The debris flow movement on the alluvial fan is simulated with the technology of numerical simulation and GIS. A new method of debris flow risk zoning is made out.

利用泥石流运动数值模拟和GIS技术相结合的方法对泥石流在出山口后的运动和堆积过程进行数值模拟和危险性分区，创建了泥石流运动数值模拟和危险性分区的新方法。

A flight between any two points may be simulated by running programs for each of the intervening air-traffic control centers

可以通过运行各个参与该空域空中交通管制中心的程序来对任意两点间的飞行进行模拟。

A flight between any two points may be simulated by running programs for each of the intervening air-traffic control center s.

可以通过运行各个参与该空域空中交通管制中心的程序来对任意两点间的飞行进行模拟。

The operating process of the Cerenkov generator with a resonant cavity is simulated when being filled with He gas at various density by PIC method.

采用PIC模拟方法，研究了具有谐振腔的多波切伦柯夫振荡器在充入不同密度的氦气下工作的物理过程，分析了等离子体产生物理机制及其对微波输出影响。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。