This paper gives a back-propagation artificial neural network mapping model with a standard Lerenberg-Marquardt training to realize the inter-transformation between the time history of acceleration and displacement.
采用标准Levenberg-Marquardt算法训练BP神经网络,建立起加速度时程与位移时程之间的非线性映射模型,从而实现加速度时程和对应时刻的位移时程的相互转换。
Due to the difficulty in determining the zero point of acceleration and the boundary value of integration, how to convert the time history of acceleration to the time history of displacement accurately is a problem in the field of engineering.
为了准确地将加速度时程积分成对应时刻的位移,提出了一种利用非线性映射能力很强的BP神经网络建立加速度时程与位移时程之间的关系。
In this paper, the time history analysis method is used to analyze on seismic response of structure subjected to uniform support ex.
时程分析方法可直接求解结构在地震荷载输入下的反应而被广泛的应用。
Some personal ideas on dynamic amplification coefficients, characteristic period, spectrum values of periods larger than 6 seconds and time-history are presented.
本文对上海市《建筑抗震设计规程（ＤＧＪ１０８—９—９２）》中反应谱的研究工作作了介绍，就该反应谱的动力放大系数、特征周期、大于６秒周期反应谱的取值以及时程的合理性问题谈了个人看法，提出了一些改进意见。
histories are provided for the time-history response analysis in the code.
在上海市地方标准《建筑抗震设计规程》（DBJ08-9-92）及其1996年局部修订增补版本中，对上海市Ⅳ类场地建筑结构的地震影响系数进行了特殊规定，并将结构自振周期延长到10s，同时给出了三条加速度时程用于时程分析。
In this paper, the static analysis, modal analysis, seismic accelerate response spectrum analysis and elastic dynamic time-history analysis of Zhixin square engineering are performed by using the FEA software of ANSYS.
本论文通过有限元分析软件ANSYS对上海市静安区置信广场工程进行了结构静力分析、模态分析、地震加速度反应谱分析和弹性动力时程分析。
The influences of the frequency changing rate and duration of FM sound on the auditory responses are investigated in rat auditory cortex in vivo.
采用在体细胞外单细胞记录方法,研究调频声频率变化率及时程对调频声所诱发的听皮层神经元反应的影响。
In our experiment, to study the effect of PR on the sound response properties of mouse inferior collicular (IC) neurons and the relationship between the neurons ability to follow sound presentations and the duration as well as intensity of the sounds, the tones with different durations (10、 40 and 100 ms)、 intensities(5, 15, 25, 35, and 45 dB SPL above minimal threshold.
声音的时相特征在声音的识别和分类中起关键作用,其中时程、脉冲重复率等是重要的参数。
By applying seismic risk analysis theory and synthetic ground shaking acceleration techniques, the acceleration history, used in Newmark method, has been created.
应用地震危险性分析理论和地震动人工合成技术,给出Newmark法中所需的地震动时程。
Real-time dynamic forecast of truck link travel time;
卡车路段行程时间的实时动态预测
Realization of dynamic travel time collection technology based on mobile phone;
基于手机定位的动态行程时间探测
Application of GPS in travel time survey;
GPS在行程时间调查中的应用
Research on Link Travel Time Prediction Based on GPS&GIS;
基于GPS/GIS的路段行程时间预测研究
Analysis of Travel Time Prediction Based on BRT Environment
BRT环境下车辆行程时间预测分析
Link Travel Time Estimation Based on Probe Vehicle Data
基于探测车数据的路段行程时间估计
A New Model for Estimating Real-time Travel Time on a Signalized Arterial
一种新的信号控制干道行程时间实时估计模型
timeline, milestone, interval, elapsed time, time marker
时间线, 里程碑, 时间间隔, 运行的时间, 时间标记
timeline, milestone, interval, time marker, elapsed time
时间线, 里程碑, 时间间隔, 时间标记, 运行的时间
scientific run-time library routine
科学运行时间库存程序
shareable run-time program
可共享运行时间程序
shared run-time library
共享运行时间程序库
the act or process of determining the time.
决定时间的过程和行为。
link run-time subprogram
连接运行时间子程序
basic batch run-time routine
基本成批运行时间程序
a routine that provides a chronological record of the execution of a computer program.
提供计算机程序执行的时间记录的例行程序。
self-arranged full-time study
自行安排的全日制课程；自行安排的全时间课程
Sorts programs by the last run time.
按上一次运行的时间顺序排列程序。
Enter a date and time when you want the selected programs to run.
输入希望所选程序运行的日期和时间。
Approximate round trip times in milli-seconds:
以毫秒为单位的大约来回行程的时间:
The Optimal Program Execution Time with Rejuvenation
基于Rejuvenation的程序执行时间优化算法