Results 221 to 230 of about 442,244 (267)

TIME DELAY AND INHOMOGENEITIES

The Ninth Marcel Grossmann Meeting, 2002
Gravitational leasing plays an important role in studing the cosmological parameters, since propagation of light rays in curved spacetime is intrinsically connected to the structure of the universe. In particular,it depends also on the clumps of matter that it encounters on its way from the source to the observer...
de Ritis, R., Piedipalumbo, E., Covone, G.   +2 more
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TIME DELAY ESTIMATION

Journal of Time Series Analysis, 1988
AbstractThe problem considered is that of estimating the delays that arise when a waveform propagates across an array. Problems that arise in previous estimation techniques when the signal‐to‐noise ratio is low are reduced by introducing an improved weighting of frequencies into the formulae and by using finite parameter models to estimate this weight ...
Hannan, E. J., Thomson, P. J.
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The time-delay graph and the delayogram - new visualizations for time delay

IEEE Signal Processing Letters, 2005
For about 60 years, the spectrogram has been an excellent visualization tool for observing the acoustic and prosodic features of a speech signal. However, a visual tool has been lacking for information that is typically represented by the speech signal's phase.
Harvey F. Silverman, Joshua M. Sachar
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Stabilization by switching time-delay

Asymptotic Analysis, 2013
In this paper we consider some stabilization problems for the wave equation with switching time-delay. We prove exponential stability results for appropriate damping coefficients. The proof of the main results is based on D'Alembert formula, observability inequality and some energy estimates.
Kais Ammari, Serge Nicaise, Cristina Pignotti   +2 more
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Time Delay in Random Scattering

SIAM Journal on Applied Mathematics, 1994
Summary: This work treats the time delay in scattering for the Schrödinger equation with a random potential. The time delay is related to the energy derivative of the phase shift. In the white noise limit, the phase shift and time delay satisfy a system of stochastic differential equations.
William G. Faris, Woody J. Tsay
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Monitoring and Evaluation of Time Delay

International Journal of Human-Computer Interaction, 2005
In general, users act as if their behavior is controlled by a self-regulatory system (Carver & Scheier, 1998) during user-system interaction. The self-regulatory system is specified as a feedback control mechanism consisting of monitoring, evaluation, and action adjustment mechanisms. This article investigates whether perception processes take care
Fischer, A.R.H., Blommaert, F.J.J., Midden, C.J.H.   +2 more
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Time Delay

Remedial and Special Education, 1988
Students labeled mildly handicapped often fail to memorize and retain information such as math facts, sight words, and spellings when taught by traditional instructional procedures. Time delay, a nearly errorless instructional procedure, has been effective in teaching these behaviors to a variety of students.
Kay B. Stevens, John W. Schuster
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Time delay

Physics Reports, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
de Carvalho, C. A. A., Nussenzveig, H. M.   +1 more
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Delayed, But Right on Time

Journal of Christian Nursing, 2022
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Synchronization for fractional-order discrete-time neural networks with time delays

Applied Mathematics and Computation, 2020
Yongguang Yu, Hu Wang
exaly