Results 51 to 60 of about 100,249 (259)

Lp Estimates for Weak Solutions to Nonlinear Degenerate Parabolic Systems

Discrete Dynamics in Nature and Society, 2017
This paper is devoted to the Lp estimates for weak solutions to nonlinear degenerate parabolic systems related to Hörmander’s vector fields. The reverse Hölder inequalities for degenerate parabolic system under the controllable growth conditions and ...
Na Wei, Xiangyu Ge, Yonghong Wu, Leina Zhao   +3 more
doaj   +1 more source

Homogenization of degenerate coupled transport processes in porous media with memory terms

, 2018
In this paper we establish a homogenization result for a doubly nonlinear parabolic system arising from the hygro-thermo-chemical processes in porous media taking into account memory phenomena.
Beneš, Michal, Pažanin, Igor
core   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

A Class of Nonlocal Coupled Semilinear Parabolic System with Nonlocal Boundaries

The Scientific World Journal, 2014
We investigate the positive solutions of the semilinear parabolic system with coupled nonlinear nonlocal sources subject to weighted nonlocal Dirichlet boundary conditions. The blow-up and global existence criteria are obtained.
Hong Liu, Haihua Lu
doaj   +1 more source

A numerical method for solving two-dimensional nonlinear parabolic problems based on a preconditioning operator

Mathematical Modelling and Analysis, 2020
‎This article considers a nonlinear system of elliptic problems, which is obtained by discretizing the time variable of a two-dimensional nonlinear parabolic problem.
Amir Hossein Salehi Shayegan, Ali Zakeri, Seyed Mohammad Hosseini   +2 more
doaj   +1 more source

Coupled Nonlinear Parabolic Systems with Time Delays

Journal of Mathematical Analysis and Applications, 1995
There are considered: a bounded domain \(\Omega\subset \mathbb{R}^p\) \((p= 1,2,\dots)\), a finite interval \([0, T]\), the sets \(D_T= (0, T]\times \Omega\), \(S_t= (0, T]\times \partial \Omega\), \(\overline D_T= [0, T]\times \overline\Omega\), \(J_i= [-r_i, 0]\) (\(r_i\), \(i= 1,\dots, n\), represent the finite time delays), \(Q^{(i)}_T= [- r_i, T ...
openaire   +2 more sources

Residual Minimizing Model Interpolation for Parameterized Nonlinear Dynamical Systems

, 2010
We present a method for approximating the solution of a parameterized, nonlinear dynamical system using an affine combination of solutions computed at other points in the input parameter space. The coefficients of the affine combination are computed with
Galbally D., Paul G. Constantine, Qiqi Wang   +2 more
core   +1 more source

Versatile Magneto‐Dielectric Response of Epitaxial Thin Films of the High Entropy Oxide Perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3

Advanced Materials, EarlyView.
The magnetic high entropy oxide perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 exhibits a substantially large dielectric constant (εr) at room temperature, which shows distinct anionic and cationic contributions in the form of zero and finite bias peaks, respectively, down to its magnetic transition temperature (Tmag).
Roxana Capu, Ryan Thompson, C. Willem Rischau, Marli R. Cantarino, Premysl Marsik, Sergey L. Bud'ko, Neven Biškup, María Varela, Yurii G. Pashkevich, Serhii M. Orel, Thomas Prokscha, Andreas Suter, Jiangtao Zhao, Ugwumsinachi Oji, Marco Bonura, Peter Bencok, Zaher Salman, Stefano Gariglio, Christian Bernhard, Subhrangsu Sarkar   +19 more
wiley   +1 more source

On the Maxwell-Stefan approach to multicomponent diffusion

, 2010
We consider the system of Maxwell-Stefan equations which describe multicomponent diffusive fluxes in non-dilute solutions or gas mixtures. We apply the Perron-Frobenius theorem to the irreducible and quasi-positive matrix which governs the flux-force ...
C Muckenfuss, D Bothe, D Bothe, D Serre, GL Standart, H Amann, H Amann, H Amann, J Prüss, J Stefan, JB Duncan, JC Maxwell, JL Vazquez, JO Hirschfelder, KR Rajagopal, P.J.A.M. Kerkhof, R Krishna, R Taylor, RA Horn, RB Bird, V Giovangigli   +20 more
core   +1 more source

Decoding THz‐Driven Dynamic Fingerprints of Ferroelectric Nanotwin Networks

Advanced Materials, EarlyView.
ABSTRACT Ultrafast polarization dynamics in ferroelectrics are of considerable interest for high‐speed tunable dielectrics and electro‐optics. Extended domain wall networks formed in ferroelectric twin nanodomains can support collective dynamics in the terahertz regime but require techniques that track polarization and strain evolution driven by ...
Xiaojiang Li, Aiden Ross, Vladimir A. Stoica, Sujit Das, Sankalpa Hazra, Huaiyu (Hugo) Wang, Hari Padma, Matthias C. Hoffmann, Patrick Kramer, Sanghoon Song, Silke Nelson, Takahiro Sato, Diling Zhu, Ramamoorthy Ramesh, Lane W. Martin, Yue Cao, John W. Freeland, Aaron M. Lindenberg, Haidan Wen, Long‐Qing Chen, Venkatraman Gopalan   +20 more
wiley   +1 more source