Results 1 to 10 of about 198,654 (301)

ENTROPİ, ŞANS VE TANRI

open access: yesFelsefe Dünyası, 2014
Evrenin bir başlangıcının olup olmadığı ya da bu düzenin nereden geldiğigibi sorular, insanlığın en büyük merakıdır. Fakat 18. Yüzyılda sanayi devrimininürünü olan buhar makinelerinin çalışma prensiplerinin keşfiyle birlikte doğan termodinamikve ...
Fatih Özgökman
doaj  

Nonoccurrence of Lavrentiev gap for a class of functionals with nonstandard growth

open access: yesAdvances in Nonlinear Analysis
We consider the functional ℱ(u)≔∫Ωf(x,Du(x))dx,{\mathcal{ {\mathcal F} }}\left(u):= \mathop{\int }\limits_{\Omega }f\left(x,Du\left(x)){\rm{d}}x, where f(x,z)f\left(x,z) satisfies a (p,q)\left(p,q)-growth condition with respect to zz and can be ...
De Filippis Filomena   +2 more
doaj   +1 more source

Regularity of weak solutions to the magneto-hydrodynamics equations in terms of the direction of velocity

open access: yesElectronic Journal of Differential Equations, 2009
In this article, we study the regularity of weak solutions to the 3D incompressible magneto-hydrodynamics equations. We obtain a new class of regularity criteria in terms of the direction of the velocity.
Yuwen Luo
doaj  

Singular nonlinear elliptic equations in Rn

open access: yesAbstract and Applied Analysis, 1998
This paper deals with existence, uniqueness and regularity of positive generalized solutions of singular nonlinear equations of the form −Δu+a(x)u=h(x)u−γ in Rn where a,h are given, not necessarily continuous functions, and γ is a positive number.
C. O. Alves, J. V. Goncalves, L. A. Maia
doaj   +1 more source

Regularity of large solutions for the compressible magnetohydrodynamic equations

open access: yesBoundary Value Problems, 2011
In this paper, we consider the initial-boundary value problem of one-dimensional compressible magnetohydrodynamics flows. The existence and continuous dependence of global solutions in H 1 have been established in Chen and Wang (Z Angew Math Phys 54, 608-
Qin Yuming, Peng Xiaozhen, Liu Xin
doaj  

On the continuity of solutions to advection-diffusion equations with slightly super-critical divergence-free drifts

open access: yesAdvances in Nonlinear Analysis, 2014
We address the regularity of solutions to elliptic and parabolic equations of the form -Δu+b·∇u=0${- \Delta u+b\cdot \nabla u=0}$ and ut-Δu+b·∇u=0${u_t- \Delta u+b\cdot \nabla u=0}$ with divergence-free drifts b.
Ignatova Mihaela
doaj   +1 more source

The Agreement between Wearable Sensors and Force Plates for the Analysis of Stride Time Variability

open access: yesSensors
The variability and regularity of stride time may help identify individuals at a greater risk of injury during military load carriage. Wearable sensors could provide a cost-effective, portable solution for recording these measures, but establishing their
Patrick Slattery   +5 more
doaj   +1 more source

Development of an algorithm for calculating the concentration of radiation defects during ion irradiation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
The paper considers mathematical modeling of radiation defect formation processes in materials under ion irradiation. Algorithms for calculating cascade probability functions (CPF) taking into account energy, spectra of primary knocked out atoms (PKA ...
T.A. Shmygaleva, A.A. Konysbayeva
doaj  

On Pacard's regularity for the equation $-Delta u = u^p$

open access: yesElectronic Journal of Differential Equations, 2012
It is shown that the singular set for a positive solution of the PDE $-Delta u = u^p$ has Hausdorff dimension less than or equal to $n - 2p'$, as conjectured by Pacard [12 in 1993.
David R. Adams
doaj  

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