Results 251 to 260 of about 1,354,784 (303)

Dispersion of Responses Over Cells

Journal of Educational and Behavioral Statistics, 2000
The usual requirement for testing hypotheses regarding the dispersion of responses distributed over taxa uses a Pearson's goodness of fit chi-square. More recently maximum likelihood statistics have also come into vogue. Standard recommendations for either technique is to have at least five observations expected under each taxon.
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Dispersion Parameters over Forested Terrain

Journal of Applied Meteorology, 1988
Abstract A unique set of micrometeorological data was obtained during a 1967–70 multidisciplinary environmental field program in a tropical forest environment. The program was under the sponsorship of the Advanced Research Project Agency (ARPA) and was known as Project TREND (Tropical Environmental Data). Wind variability parameters, which characterize
R. T. Pinker, J. Z. Holland
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Synchronization over fading dispersive channels

IEEE Transactions on Communications, 1988
An investigation is reported of an acquisition system for digital communication over fading dispersive channels that is optimum in the maximum-likelihood sense. A performance measure for the synchronizer in the acquisition mode is defined. Upper and lower bounds on the performance measure are derived.
S.S. Soliman, R.A. Scholtz
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Generation of Over-Dispersed and Under-Dispersed Binomial Variates

Journal of Computational and Graphical Statistics, 1995
Abstract This article proposes an algorithm for generating over-dispersed and under-dispersed binomial variates with specified mean and variance. The over-dispersed/under-dispersed distributions are derived from correlated binary variables with an underlying continuous multivariate distribution.
Hongshik Ahn, James J. Chen
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Inherent Dispersion in Restitution Properties Over Space

2006 International Conference of the IEEE Engineering in Medicine and Biology Society, 2006
Cardiac tissue heterogeneities can result in spatially dependent restitution properties. We propose a method for quantifying the dispersed nature of these restitution curves (RCs) over a large number of imaged pixels/locations. Cardiac propagation in response to point stimulation was recorded in cardiomyocyte monolayers with voltage-sensitive dye over ...
Rupinder, Singh, Harold, Bien, Emilia, Entcheva, Flavio F, Fenton   +3 more
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Animal Dispersal Dynamics Promoting Dioecy over Hermaphroditism

The American Naturalist, 2007
Because of the separation of sexual function to male and female individuals, dioecious species have fewer pollen and seed bearers and thus experience disadvantages due to increased aggregation of reproductive function. Because of this disadvantage, models predict that dioecious females must have substantially more than twice the fecundity of ...
Jana C, Vamosi, Yu, Zhang, William G, Wilson   +2 more
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Longshore dispersion over a flat beach

Journal of Geophysical Research: Oceans, 1982
We model the longshore dispersion of a passive, conservative pollutant in the surf zone formed by two‐dimensional, monochromatic water waves of near‐normal incidence breaking over a plane, flat, impermeable beach under presumedly uniform temporal, vertical, and longshore conditions. Such pollutants disperse in a Fickian manner through a plane moving at
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PARTICLE DISPERSION IN FLOWS OVER ROUGH SURFACES

Proceeding of Eighth International Symposium on Turbulence and Shear Flow Phenomena, 2013
The dispersion of particles in turbulent flows is a very common, yet not fully understood problem. In this work we deal with a fully developed turbulent channel flow, at Reτ = 180. The influence of wall roughness on the velocity field and on the particle dispersion is analysed.
D. Sassun, P. Orlandi, M. Bernardini, S. Pirozzoli   +3 more
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Parameterization of plume dispersion over water

Atmospheric Environment (1967), 1986
Abstract Data collected during a continuous surface release point source tracer experiment off the California coast have been analyzed to obtain the conventional, hourly averaged sigma-y and sigma-z values widely used in Gaussian plume dispersion formulae.
C.E. Skupniewicz, G.E. Schacher
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