Results 11 to 20 of about 4,421,442 (301)

A dynamical study of the Friedmann equations [PDF]

open access: yesEuropean Journal of Physics, 2001
Cosmology is an attracting subject for students but usually difficult to deal with if general relativity is not known. In this article, we first recall the Newtonian derivation of the Friedmann equations which govern the dynamics of our universe and discuss the validity of such a derivation.
Uzan, Jean-Philippe, Lehoucq, Roland
openaire   +4 more sources

A Dynamic Modeling Method for the Bi-Directional Pneumatic Actuator Using Dynamic Equilibrium Equation

open access: yesActuators, 2021
Dynamic modeling of soft pneumatic actuators are a challenging research field. In this paper, a dynamic modeling method used for a bi-directionaly soft pneumatic actuator with symmetrical chambers is proposed.
Yiqing Li, Wen Zhou, Junwu Wu, Guoxu Hu
doaj   +1 more source

Dynamic wetting for continuum hydrodynamics with multi-component Lattice Boltzmann equation simulation method [PDF]

open access: yes, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009)   +4 more
core   +6 more sources

Dynamics of the inflationary flow equations [PDF]

open access: yesPhysical Review D, 2005
9 pages 4 figures.
Chongchitnan, Sirichai   +1 more
openaire   +2 more sources

The asymptotic properties of the dynamic equation with a delayed argument [PDF]

open access: yesOpuscula Mathematica, 2006
In this paper, we present some asymptotic results related to the scalar dynamic equation with a delayed argument. Using the time scale calculus we generalize some results known in the differential and difference case to the more general dynamic case.
Jan Čermák, Miroslav Urbánek
doaj  

Computational approaches to time scale dynamic equations using the Elzaki transform [PDF]

open access: yesMathematics and Computational Sciences
Integral transform methods are effective techniques for addressing a range of dynamic equations characterized by initial or boundary value conditions, frequently expressed in the form of integral equations.
Shivaji Tarate   +3 more
doaj   +1 more source

Oscillatory Behaviour of the Nonlinear Damped Fractional Partial Dynamic Equation

open access: yesAdvances in Mathematical Physics, 2022
In this paper, a partial dynamic equation of fractional order is considered with Neumann and Dirichlet boundary conditions, and we studied the oscillation properties of the fractional partial dynamic equation on time scales.
R. Ramesh   +3 more
doaj   +1 more source

Dynamics of the Painlevé-Ince Equation

open access: yesResults in Mathematics, 2022
AbstractThe Painlevé-Ince differential equation $$y'' + 3 y y' + y^3=0$$ y ′ ′ + 3 y
openaire   +2 more sources

Combining a fractional diffusion equation and a fractional viscosity-based magneto dynamic model to simulate the ferromagnetic hysteresis losses

open access: yesAIP Advances, 2022
Magnetic losses in a laminated ferromagnetic core have been studied for years. However, magnetization mechanisms are complex, and the ideal model is still lacking.
B. Ducharne, G. Sebald
doaj   +1 more source

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