瞬态

The simulation model is applied to imitate transient operation characteristics of start-up process and suddenly dropping of supplied voltage to the signal-phase capacitor induction motor through a real example.

通过实例对单相电容感应电动机的起动过程和电源电压骤降瞬态特性进行模拟计算，对模拟结果进行分析，以帮助学生加深对理论的理解和认识。

An opto-electronic system for measuring transient carbon granules concentration and flame temperature at local positions within cylinders of diesel engine is developed by means of granules diffraction principle.

利用颗粒衍射原理，研制出一套用于测量柴油机气缸内局部瞬态碳粒浓度和火焰温度的光电测量系统。

Based on Computational fluid dynamics, the problem on transient aerodynamic characteristics of sedan and coach crossing each other on road was researched by adopting technology of sliding interface and moving mesh.

应用计算流体力学数值模拟方法，采用滑动交界面和动网格技术，对开阔路面下轿车大客车会车过程的瞬态流动进行气动特性研究。

In regard to the practical coking process, a kinetic two-dimension coordinate calculation method was established in determination of the temperature field and its stress field of coke tower shell both in radial and axial directions with reference to shell innate flow rate by FEM.

通过动态坐标法模拟了恒速上升的液体介质界面在焦炭塔内沿塔壁爬升的动态边界工况，对其在壁中引起的径向和轴向二维瞬态温度场进行了有限元计算。

The U 87 Ai condenser microphone is a large diaphragm microphone with three polar patterns and a unique frequency and transient response characteristic.

这个电容mic有着大膜片和三种独立指向性和单一频率还有良好的瞬态响应的特点。

In order to study the intake air flow characteristics in four-valve diesel engines, in this dissertation hot-wire anemometer and PIV twodimension instantaneous measuring technique are used. Extensive experimental study on two intake valve exit flow fields and longitudinal section flow field in cylinder are performed for different type of diesel engines. Great researching progress have been made on the interaction between two intake ports, and the formation process of in-cylinder swirl and flow field structure of cross and longitudinal section for four valve diesel engines. These results are presented in China for the first time and without such kind of research work reported abroad as detailed and deepgoing as this dissertation. The author designs and makes a set of hot wire measuring velocity device to measure the velocity distribution around the intake valve annulus and the cross section flow field in cylinder.

为了研究四气门柴油机进气过程中气体流动的变化规律，本文利用热线测速和PIV二维瞬态测速技术，对四气门柴油机两进气门出口全圆周流速场和缸内横、纵剖面的气体流动流场进行了大量的试验研究，在四气门柴油机两进气道之间相互影响的变化规律，缸内涡流的形成过程及缸内横、纵剖面流场结构等方面取得了重大的研究进展，这一研究工作在国内尚属首次，在国外也未见有如此全面、深入的研究报道。

Semiconductor optical amplifier ; wavelength conversion ; transient cross phase modulation

半导体光放大器；波长转换；瞬态交叉相位调制

All-optical wavelength conversion based on transient cross phase modulation of semiconductor optical amplifieris a promising approach to achieve high-speed all-optical signal processing.

采用半导体光放大器中的瞬态交叉相位调制效应是实现高速全光信号处理的有效途径。

The simulation results indicate that adjusting pump power properly can control transient effect, and increasing modulation frequency can weaken cross modulation, and decreasing frequency chirp of LD or enhancing the input power of signals can improve intermodulation distortion.

仿真结果表明，调整泵浦功率值可抑制瞬态效应，提高调制频率可使串话减弱，减小激光器的频率啁啾或增大EDFA的输入光功率都可改善IM2。

Finally, the techniques of time-serial measurement for transient flow field, three-dimensiqonal tomography, computer image processing and the theories above quantitative calculation studied in the thesis are used to measure the free jet flow field of real rocket, the flow field of bore nozlle, impingment field of exhusted jet, three-dimensional flow field in hypersonic shock tunnel, the flow field of boundary layer transition, explosive and combustion flow field of detonating powder and 3-D temperature field.

最后，利用本文所研究的瞬态流场时间序列定量测试技术，三维C.T技术，计算机图像处理技术和定量计算理论等对真实火箭燃气射流场，膛口流场，燃气射流冲击场，高超音速激波风洞中的三维流场，模型边界层转捩区流场，起爆药爆轰流场和燃烧场、三维温度场等进行测试，取得了一些国际上首创性的成果，并对实现上发现的一些新现象进行理论分析和解释。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。