Results 31 to 40 of about 239,904 (190)

Employing observed turbulent dissipation rates to obtain fundamental equations that parameterize turbulence effects in atmospheric models [PDF]

open access: yesRevista Brasileira de Meteorologia
Taylor diffusion model and forms for the autocorrelation functions are employed to derive turbulent dissipation rates. These formulations contain a numerical coefficient nc and are written in terms of turbulent scales associated with the energy ...
Gervásio Annes Degrazia   +5 more
doaj   +1 more source

FDTD Modeling for Dispersive Media Using Matrix Exponential Method [PDF]

open access: yesIEEE Microwave and Wireless Components Letters, 2009
This letter presents a finite-difference time-domain formulation to model electromagnetic wave propagation in dispersive media using matrix exponential method. The Maxwell's curl equations and the time domain relations between electric fields and auxiliary variables are formulated as a first order differential matrix system. The fundamental solution to
Heh, Ding Yu, Tan, Eng Leong
openaire   +3 more sources

Turbulent dispersion properties from a model simulation of the western Mediterranean Sea [PDF]

open access: yesOcean Science, 2014
Using a high-resolution primitive equation model of the western Mediterranean Sea, we analyzed the dispersion properties of a set of homogeneously distributed, passive particle pairs. These particles were initially separated by different distances D0 (D0
H. Nefzi, D. Elhmaidi, X. Carton
doaj   +1 more source

Investigating the noise effect on the CGL model having parabolic law of nonlinearity

open access: yesResults in Physics, 2023
The stochastic complex Ginzburg–Landau model with parabolic law nonlinearity and chromatic dispersion is investigated in this research study. In many fields of science, including fluid dynamics and optical fibers, this model is utilized to represent the ...
Yazid Alhojilan, Hamdy M. Ahmed
doaj   +1 more source

Non-informative Bayesian dispersion particle filter

open access: yesJournal of Innovative Applied Mathematics and Computational Sciences
In this research paper, we attempt to introduce a new algorithm for filtering a state-space model. The observations of this algorithm follow an exponential dispersion model.
Ibrahim Sadok
doaj   +1 more source

Degradable Solute Transport in Porous Media with Variable Hydrodynamic Dispersion

open access: yesApplied Mechanics
Degradable solute transport in porous media significantly influences various ecological, geological, and industrial processes. In this paper, a mathematical model for solute transport in porous media with varying hydrodynamic dispersion is examined ...
Bekzodjon Fayziev   +7 more
doaj   +1 more source

A variety of physical structures to the generalized equal-width equation derived from Wazwaz-Benjamin-Bona-Mahony model

open access: yesJournal of Ocean Engineering and Science, 2022
In this paper we are interested in investigating the physical shape-changed propagations to the generalized Equal-Width equation through studying the explicit solutions of Wazwaz-Benjamin-Bona-Mahony model.
Imad Jaradat, Marwan Alquran
doaj   +1 more source

Linear Growth Curve Analysis Based on Exponential Dispersion Models

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1996
SUMMARY The paper introduces a class of linear growth curve models based on combinations of exponential dispersion models. The models have three components, namely a latent Markov growth process with stationary and independent increments, a noise component and a component describing variation between subjects.
Jørgensen, B   +2 more
openaire   +5 more sources

The difficulty of measuring the local dark matter density

open access: yes, 2015
The analysis of the vertical velocity dispersion of disc stars is the most direct astronomical means of estimating the local dark matter density, $\rho_{DM}$.
Hessman, Frederic V.
core   +1 more source

A note on tsunamis: their generation and propagation in an ocean of uniform depth [PDF]

open access: yes, 1973
The waves generated in a two-dimensional fluid domain of infinite lateral extent and uniform depth by a deformation of the bounding solid boundary are investigated both theoretically and experimentally.
Hammack, Joseph L.
core   +1 more source

Home - About - Disclaimer - Privacy