瞬态

This produced a lot of message in time and frequency area for analysis electroencephalogram.For electroencephalogram signal, they contain much temporary signal.

对于脑电信号，其中含有大量瞬态信号，这些信号对于疾病的诊断有重要的价值。

In this paper, the problem of the transient signal sampling and disposing of three millimeter wave band is systematically investigated.

论文系统的研究了3mm波段瞬态信号的采集及其处理的问题。

Fluent software was used as a calculaˉ tion platform, and its UDF compiler was used to inject mass, mome ntum and energy of ignition gas and propellant gas into chamber. Combining with kˉε twoˉequation turbulence model and Pˉl radiation model, the 3ˉD nume rical simulation of ignition transient process of some solid rocket motor with st arˉshaped charge and a cove was conducted.

文中以Fluent软件为计算平台，采用UDF编译来实现点火燃气和推进剂燃气的质量、动量、能量向燃烧室的注入，结合 kε两方程湍流模型、 P l 辐射模型对某有堵盖的星形装药固体火箭发动机的点火瞬态过程进行三维数值计算。

The basic equations of centrifugal pump on steady and unsteady process were educed based on theory of momentum and moment in order to analyze the transient hydrodynamic performance of centrifugal pump.

为了对离心泵快速开启过程的瞬态效应进行分析，根据动量矩定理分别推导转速稳定和不稳定时的离心式水泵基本方程式，给出了叶轮旋转加速和流体加速对性能影响的数学描述方程，为进一步理论分析和数值计算打下基础，并结合一台快速启动的混流泵进行实例分析。

The basic equations of centrifugal pump on steady and unsteady process were educed based on theory of momentum and moment in order to analyze the transient hydrodynamic performance of centrifugal pump. The equations were used to describe the influence of accelerating rotation of impeller and accelerating motion of fluid on hydrodynamic performance.

为了对离心泵快速开启过程的瞬态效应进行分析，根据动量矩定理分别推导转速稳定和不稳定时的离心式水泵基本方程式，给出了叶轮旋转加速和流体加速对性能影响的数学描述方程，为进一步理论分析和数值计算打下基础，并结合一台快速启动的混流泵进行实例分析。

We present an inverse method based on Tikhonov regularization theory. A regularized functional is established and regularization parameters are deduced with Arcangeli criterion and Morozov discrepancy principle. The functional is solved by sensitivity coefficients and Newton-Raphson iteration method.

充分考虑非线性瞬态热传导过程测温数据的误差特点，根据Tikhonov正则化理论，构造合适的正则化泛函，利用Arcangeli准则和Morozov偏差原理确定正则参数，采用灵敏度系数和Newton-Raphson迭代法求解该泛函。

MPT control technique is easy to realize, with great robust ness and good transient performance.

MPT控制方法易于实现，控制系统具有良好的瞬态特性和鲁棒性，可以应用于各种拓扑结构的开关变换器。

The natural neutron flux measurement method can be used to predict the instantaneous change of atmosphere condition, and to determining the water content of soil and rocks and to predict earthquake.

通过对地－空界面天然中子流测量，可以揭示气象的瞬态变化、确定地表介质的含水率的关系，以及在地震预报与环境电离辐射评价方面具有重要的科学意义与实用价值。

Our technological equipment is rich, including global satellite positioning system GPS, geological radar meter (SIR-20, EKKO), seismograph, infrared detector (NEC-TH9100), ultrasonoscope, building structure diagnose apparatus, proton magnetometer, atomic absorption apparatus, ion chromatograph, gas chromatography, niton survey meter, and etc.

中心拥有各类先进的检测和探查仪器，如：GPS卫星定位仪、全站仪、数字水准仪、美国SIR-20地质雷达仪、加拿大EKKO地质雷达仪、地震仪、NEC红外热像仪、超声波检测仪、质子磁力仪等物探测量仪器，以及原子吸收仪、离子色谱仪、气相色谱仪、氡气探测仪等化学、放射性检测仪器。同时，不断加大对科研经费的投入，引进和开发地质雷达探测、瞬态面波探测、高密度电法等物理探测、远红外成像检测、GPS动静态定位技术、水土环境监测、研发高难度废水处理工艺、地质灾害防治措施及科技考古技术等新方法。

For this nonlinear and time-dependent temperature field problem, two kinds of finite elements are presented here.

对于这类高度非线性的瞬态场问题，本文发展了两种一维温度管单元及其温度场的计算方法。

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。