Results 31 to 40 of about 122,445 (270)

Approximate Solution of Inverse Problem for Elliptic Equation with Overdetermination

open access: yesAbstract and Applied Analysis, 2013
A …finite difference method for the approximate solution of the inverse problem for the multidimensional elliptic equation with overdetermination is applied.
Charyyar Ashyralyyev, Mutlu Dedeturk
doaj   +1 more source

Vibro-impact regimes of adamped single-mass system with two fixed stops [PDF]

open access: yesFME Transactions
This study examines the periodic vibro-impact (VI) behavior of an externally excited system containing mass, spring, and damper, whose rectilinear motion is bounded by two symmetrical stops.
Garić Ljubiša B., Nešić Nikola D.
doaj   +1 more source

Stability of Difference Schemes for Fractional Parabolic PDE with the Dirichlet-Neumann Conditions

open access: yesAbstract and Applied Analysis, 2012
The stable difference schemes for the fractional parabolic equation with Dirichlet and Neumann boundary conditions are presented. Stability estimates and almost coercive stability estimates with ln (1/(𝜏+|ℎ|)) for the solution of these difference schemes
Zafer Cakir
doaj   +1 more source

On the Numerical Solution of Fractional Parabolic Partial Differential Equations with the Dirichlet Condition

open access: yesDiscrete Dynamics in Nature and Society, 2012
The first and second order of accuracy stable difference schemes for the numerical solution of the mixed problem for the fractional parabolic equation are presented.
Allaberen Ashyralyev, Zafer Cakir
doaj   +1 more source

Abstract robust coarse spaces for systems of PDEs via generalized eigenproblems in the overlaps [PDF]

open access: yes, 2013
Coarse spaces are instrumental in obtaining scalability for domain decomposition methods for partial differential equations (PDEs). However, it is known that most popular choices of coarse spaces perform rather weakly in the presence of heterogeneities ...
AV Knyazev   +24 more
core   +1 more source

Depletion layer-induced size effects in ferroelectric thin films: A Ginzburg-Landau model study

open access: yes, 2012
A Ginzburg-Landau model is used to demonstrate how depletion layers give rise to thickness-dependent ferroelectric properties in thin films. It is shown that free charge layers at the film-electrode interface can result in an internal electric field in ...
Ahluwalia, Rajeev   +2 more
core   +1 more source

PIN–PMN–PT piezoelectric crystals with increased rhombohedral-to-tetragonal phase transition temperature [PDF]

open access: yesJournal of Advanced Dielectrics, 2014
In this work, crystal growth and characterization of PIN–PMN–PT (29–59% PIN and 28–35% PT) were conducted to understand how PIN ratio in the PIN–PMN–PT system impacts its phase stability during crystallization.
Jun Luo   +3 more
doaj   +1 more source

Spinodals with Disorder: from Avalanches in Random Magnets to Glassy Dynamics

open access: yes, 2016
We revisit the phenomenon of spinodals in the presence of quenched disorder and develop a complete theory for it. We focus on the spinodal of an Ising model in a quenched random field (RFIM), which has applications in many areas from materials to social ...
Biroli, Giulio   +2 more
core   +3 more sources

Mixed spatially varying $L^2$-BV regularization of inverse ill-posed problems [PDF]

open access: yes, 2014
Several generalizations of the traditional Tikhonov-Phillips regularization method have been proposed during the last two decades. Many of these generalizations are based upon inducing stability throughout the use of different penalizers which allow the ...
Mazzieri, Gisela L.   +2 more
core   +2 more sources

Titanium Nitride as a Seed Layer for Heusler Compounds

open access: yes, 2015
Titanium nitride (TiN) shows low resistivity at room temperature, high thermal stability and thus has the potential to serve as seed layer in magnetic tunnel junctions.
Arenholz, Elke   +7 more
core   +1 more source

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