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.

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.

In this paper, the time history analysis method is used to analyze on seismic response of structure subjected to uniform support ex.

Some personal ideas on dynamic amplification coefficients, characteristic period, spectrum values of periods larger than 6 seconds and time-history are presented.

histories are provided for the time-history response analysis in the code.

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.

The influences of the frequency changing rate and duration of FM sound on the auditory responses are investigated in rat auditory cortex in vivo.

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.

By applying seismic risk analysis theory and synthetic ground shaking acceleration techniques, the acceleration history, used in Newmark method, has been created.

Real-time dynamic forecast of truck link travel time;

Realization of dynamic travel time collection technology based on mobile phone;

Application of GPS in travel time survey;