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Jun 12, 2020Open Access
The main subject of this study is to adapt the fractional step method to the resolution of the radiative heat equation. This interest is justified by the intervention of the flow radiation in the modeling of several physical phenomena. Since this differential equation is actually difficult to solve, a new method has to be used to solve the equations that govern the heat transfer in the porous medium. The results have been limited to the less fine parametric study and have brought us to the concl...
Feb 17, 2020Open Access
In the recent, filler-polymer composites researches have been on the rise due to its implication to electromagnetic interference (EMI) applications. The composition, morphology and surface rheology of the filler-polymer composites play an immense role in determining the electrical, mechanical, and optical properties. In this paper, the preparation and characterization of micro-composites of wood (biodegradable waste material)/polycaprolactone (PCL) composites a ...
Nov 21, 2019Open Access
A comparative analysis of the effectiveness of prediction using PRT and RIA approaches, using, respectively, exclusively the linear component of long-term memory and, along with the linear, non-linear component, is given. The noise immunity of prediction is considered in both approaches in the presence of ad-ditive noise with a normal or uniform distribution.
Nov 09, 2018Open Access
The solution of problem convection-diffusion equation by way of control vol-ume method is considered. Approximate solution of problem is received. Three point scheme of high resolution is constructed.
Mar 07, 2018Open Access
This paper studies a new concept called universal
folding. The visible universe is the result of a complex invisible folding
series. There are three major folds (Trifold): from the Plank length, to the
radius of an electron, and finally, to the radius of universe. Each of the three-major
folds follows the same folding formula. Our findings help us understand the
grand architecture of the universe. The ideal average human height, c ...
Sep 22, 2017Open Access
A procedure for determining the current parameters
of the oscillator is based
on the calculation of the wavelet coefficients of the signal system using fast
discrete wavelet transform and application of the differentiation formulas
wavelet expansions.
Feb 29, 2016Open Access
A new variational method has been proposed for studying the equilibrium
states of the interacting particle system to have been statistically described
by using the density matrix. This method is used for describing conductivity
electrons and their behavior in metals. The electron energy has been expressed
by means of the density matrix. The interaction energy of two εkk′ electrons dependent on their wave vectors k and k’ has been found.
Ene...
Dec 17, 2015Open Access
A new variational method has been proposed for studying the equilibrium
states of the interacting particle system to have been statistically described
by using the density matrix. This method is used for describing conductivity
electrons and their behavior in metals. The electron energy has been expressed
by means of the density matrix. The interaction energy of two εkk’ electrons dependent on their wave vectors k and k’ has been found. Energy ...
Dec 25, 2014Open Access
A new more exact formula, than that recently published (Apeiron, Vol. 18,
No 2 (2011)), for Shadow-Gravity force, for any distances between fundamental
sub-particles, including very short ones when gravitation becomes strong, is
developed. It is found also that, in fundamental contrast to Darwin’s conclusion,
the gravitation effect is performed at the
expense of elastic collisions of fations with fundamental sub-particles,
and thus the well known basic objection against the shadow- gravit...
Dec 25, 2014Open Access
In this paper, a
Lattice Boltzmann method was used to simulate the flow of temperature-sensitive
magnetic fluids in a micro porous cavity. According to Navier’s linear slip
length model, slip boundary conditions were used on all the walls of the micro
porous cavity. The effects of the horizontal slip length and the vertical slip
length on the flow and heat transfer characteristics were investigated. The results
showed that with the increase of the slip length, the velocities and their
gradients ...
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