查询词典 time delay unit

Methods forty patients with head/neck 16 slice CT angiograph were divided into two groups at random,each group has 20 cases, the plain scan and the CTP was performed before CTA to all 40 cases. Group A use CTP to obtain the peak time of contrasted artery as CTA delay time, and scan from head side to foot side. Group B use contrast media automatic bolus tracking to obtain delay time,scan from foot side to head side.two groups CTA images were collated.

使用16排螺旋CT对40例患者行头颈部CTA检查，随机分为两组，各20例，所有患者在CTA之前行脑CT平扫及脑CT灌注扫描，A组以CTP所显示的动脉峰值时间作为CTA的延迟时间，扫描方向为自头侧向足侧。B组使用造影剂浓度实时监控跟踪触发技术确定延迟时间，扫描方向自足侧向头侧扫描，两组CTA图像相对照。

The mathematical model by which the forming time can be precisely calculated is ratiocinated. This model shows that in SLS the scanning "delay" phenomenon can make the actual forming time greatly exceed the theoretical time, and the total number, total length of the scanning lines and the scanning speed have different effects on the scanning "delay".

本文推导出了SLS成型时间精确计算的数学模型，该模型显示在SLS加工中的扫描&延时&现象会造成实际成型时间远远大于理论时间，并且扫描线条数、扫描线总长和扫描速度对扫描&延时&有不同程度的影响。

A time-delay reconstruction of a phase space equal to the original system has been made by analyzing of observed time series of current signal and vibratory signal, and the methods of choosing properly the embedding dimension and delay-time for phase space reconstruction have been studied in detail.

本文利用振动信号和电流信号时间序列，采用时间延迟法，重构了系统的等价相空间，并详细研究了嵌入维数及时间延迟的选择对重构相空间的影响，计算了铣削加工典型过程的Lyapunov指数谱，分析了系统的混沌特性；同时采用P-G算法，计算了混沌动力系统的奇异吸引子的分维数，分析了分维数与系统状态的关系，定量地指示出系统的混沌程度，同时也反映出系统的不可预报程度。

Introduces the general situation of time-delay relay , analyses the elements and typical applied circuitry; at the same time, it gave a detailed introducer of the time-delay relay s EMC, operating precaution and developing direction in the future.

介绍了时间继电器概况，对典型的原理以及应用线路进行了分析，并对时间继电器的电磁兼容性和使用注意事项以及未来发展趋势均给予了详细的介绍。

Suppose an physical unit expressed as dimA , length unit m represents one dimensional space , time unit s represents one dimensional time , thus

设有一个物理单位 dim A ，长度单位m 表示一维空间，时间单位 s 表示一维时间，则有

Suppose an physical unit expressed as dimA , length unit m represents one dimensional space , time unit s represents one dimensional time , thus o:p

设有一个物理单位 dim A ，长度单位 m 表示一维空间，时间单位 s 表示一维时间，则有

Based on analyzing combat unit mission reliability and maintainability requirement, the models of mean time between failure and mean time to repair of combat unit are given. The transformation model from combat unit mobile mission to MLDT is constructed.

在分析作战单元任务可靠性维修性基础上，给出了作战单元的平均致命性故障间隔时间和平均维修保障停机时间定义和模型，建立了作战单元任务要求到使用可用度转换和使用可用度要求到保障部署要求转换模型。

The optimal control law obtained is composed of feedforward and feedback optimal terms without time-delay in analytic forms and a compensation term with time-delay in a sequence limit form of adjoint vectors.

得到的最优控制律由解析的无时滞前馈－反馈控制部分和伴随向量序列极限形式的时滞补偿控制部分组成。

For the design of the sliding mode control of time-delay large-scale systems, we propose the adaptive fuzzy sliding mode control schemes, and the fuzzy approximator is used to approximate the upper bound of the uncertainties which combine time-delay interconnections with perturbations in the system.

所以，我们针对具时间延迟的大型系统的滑动模式控制设计上提出了一个适应模糊滑动模式控制方法，其中，模糊近似器被用来近似系统当中时间延迟以及扰动相互结合后的上界。

The accurate time delay estimation of a signal can be gained even if there is a great time delay because of the stationary performance of circular correlation.

问题是，当加性噪声双方含有相同的信号和各自到达的时间差时，广义相关法将失效。

This immediately brings us to the next part of this article: creating an output "replace function".

下面进入文章的第二部分：建立一个"缓存处理函数"。

He was elected as an International Ornithological Committee member in 2002 during the 24th IOC held in Beijing.

现为中国鸟类学会理事和WPA 专家组成员。2002年被推选为国际鸟类委员会委员。