Results 31 to 40 of about 14,393,463 (300)

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

Revista 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, Luís Gustavo Nogueira Martins, Michel Stefanello, Cinara Ewerling da Rosa, Felipe Denardin Costa, Maicon Fonseca Andrades   +5 more
doaj   +1 more source

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

IEEE 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

Non-informative Bayesian dispersion particle filter

Journal 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

Applied 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, Otabek Sagdullaev, Shukhrat Djalilov, Odil Khaydarov, Jabbor Mustofoqulov, Erkin Akhmedov, Asror Mustafakulov, Akbar Toyirov   +7 more
doaj   +1 more source

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

Ocean 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

Results 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

Linear Growth Curve Analysis Based on Exponential Dispersion Models

Journal 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, Labouriau, Rodrigo; id_orcid 0000-0001-8713-6864, Lundbye-Christensen, S   +2 more
openaire   +5 more sources

On Some Layer‐Based Risk Measures with Applications to Exponential Dispersion Models [PDF]

Journal of Probability and Statistics, 2010
Layer‐based counterparts of a number of well‐known risk measures have been proposed and studied. Namely, some motivations and elementary properties have been discussed, and the analytic tractability has been demonstrated by developing closed‐form expressions in the general framework of exponential dispersion models.
Olga Furman, Edward Furman
openaire   +2 more sources

Improvements in Turbulent Jet Particle Dispersion Modeling and Its Validation with DNS

Atmosphere
Particle dispersion models (PDMs) are essential to capture the influence of unresolved turbulent eddies on particle transport in computational fluid dynamics (CFD) simulations.
Ege Batmaz, Florian Webner, Daniel Schmeling, Claus Wagner   +3 more
doaj   +1 more source

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

Journal 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