查询词典 transient time

A frequency-domain research tool for calculating the initial amplitude,phase,frequency and time constant of fault transient components in complicated networks is developed.

为计算复杂电力网络故障暂态分量的初始幅值、相位、频率和时间常数，开发了一套新的频域计算方法和研究工具。

Time-resolved laser flash photolysis is a new technique used to investigate the transient species of photochemistry systems at room temperature and has been applied in different research fields.

时间分辨的激光闪光光解装置是为了在室温下鉴别光化学体系中存在的活泼中间体而形成的一种技术，已经被广泛地应用于各个领域。

The signal height and decay time of the transient photoconductivity as the function of the iridium dopant concentration are studied at 77K.

研究在 77K时，铱掺杂溴化银微晶瞬态光电导的信号强度和衰减时间与铱掺杂浓度间的关系。

In the power system failure transient period of time.

在电力系统发生故障的暂态时期内。

In order to deal with the stochastic characters of fault location, fault type, fault clearing time, and load level etc., this paper proposed a transient stability probability analysis method based on curve fitting.

考虑电力系统发生故障时，故障位置、故障类型、故障切除时间以及负荷水平都具有随机性，提出了一种基于曲线拟合的暂态稳定概率评估方法。

Firstly, the random walk problem is introduced and the solution is schemed out theoretically. And then, the equivalent RC circuit for thermal analysis is discussed as the IC package is divided into many small blocks at the desired level of granularity. The techniques of analyzing the equivalent RC network by random walk algorithm are then discussed. At the same time, an equivalent model for thermal analysis is set up according to an IC chip. The proposed method is then applied to this model for both steady and transient analysis. Two speedup strategies, pseudo parallel walking and walk results reuse, are proposed sequentially to improve the algorithm performance.

首先简述随机行走问题的基本概念，给出问题的理论解法；然后讨论基于三维网格划分的IC芯片热等效阻容网络模型，着重分析随机行走算法在热等效模型中的应用，并建立一个实际芯片的热等效模型，采用随机行走算法模拟计算模型的稳态温度分布和瞬态温度变化；最后针对随机行走算法应用中的不足，提出了伪并行行走和结果重用2种加速技术。

For , these poles are on the negative real axis, on both sides of , the transient is a sum of two decaying exponentials, each with its own time constant.

当 时，这些极点在负实轴上，在的两边，瞬态响应为两个不同时间常数指数衰减曲线之合。

First, response model in time domain of pile under the transient state of stimulated vibration is reduced according to damping wave equation, initial condition and boundary condition.

首先，从桩-土系统共同作用的阻尼波动方程入手，结合初始条件、边界条件，推导了完整桩瞬态激振下的时域响应模型。

The time-stepping FE method is used for calculating the transient starting performance of the squirrel cage induction motor.

时步有限元方法是计算鼠笼异步电机暂态起动特性的一种有效方法，本文针对当前该方法在工程应用中存在的问题展开了研究。

Aimed at the problem of choosing the initial value when the Newton method is used to compute the controlling unstable equilibrium point, a practical and rigorous solving scheme was presented: by identifying the controlling load bus of the given fault, and using the Thevenin equivalent circuit to represent the rest of the system at the state of the post disturbance stable equilibrium point, using the steady equivalent circuit to represent the induction motor in composite load, and then using the torque characteristics of induction motor, a point near the CUEP is gained to be the initial value. The second order normal forms was used to approximate the stable manifold of CUEP, and the local approximating boundary of the region of attraction of the post disturbance stable equilibrium point was gained. Then just by simulating the state of the system at the fault clearing time, the transient voltage stability of the system could be determined.

针对采用牛顿法求取故障后系统主导不稳定平衡点(controlling unstable equilibrium point，CUEP)存在的初值选取难题，提出一种实用但不失严谨的解决方案：通过识别给定故障的主导负荷母线，对主导负荷母线以外系统由故障后稳定平衡点处的状态进行戴维南等值，对负荷中感应电动机部分采用其稳态等值电路，再由感应电动机的转矩特性求得CUEP附近的一个点作为近似的CUEP，以此为迭代初值可靠求得CUEP；采用二阶正规型来近似CUEP的稳定流形的方法求得近似的局部吸引域边界；由仿真得到故障清除时刻系统的状态并根据该状态是否位于吸引域内判断系统的暂态电压稳定性。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。