Results 31 to 40 of about 139,050 (252)

Wulff shape characterizations in overdetermined anisotropic elliptic problems [PDF]

, 2017
We study some overdetermined problems for possibly anisotropic degenerate elliptic PDEs, including the well-known Serrin's overdetermined problem, and we prove the corresponding Wulff shape characterizations by using some integral identities and just one
Bianchini, Chiara, Ciraolo, Giulio
core   +2 more sources

Detection of oriented fractal scaling components in anisotropic two-dimensional trajectories

Scientific Reports, 2020
We propose a novel class of mixed fluctuations with different orientations and fractal scaling features as a model for anisotropic two-dimensional (2D) trajectories hypothesized to appear in complex systems.
Ivan Seleznov, Anton Popov, Kazuhei Kikuchi, Elena Kolosova, Bohdan Kolomiiets, Akio Nakata, Miki Kaneko, Ken Kiyono   +7 more
doaj   +1 more source

On Physical Vapor Deposition of Organic Semiconductor CuPc Thin Films in High Gravity

Eurasian Chemico-Technological Journal, 2009
Thin organic films of p-type semiconductor copper phthalocyanine (CuPc, C32H16N8Cu) deposited by vacuum evaporation on glass substrates at different gravity conditions, from 50 g to –50 g (g – denotes the terrestrial gravity acceleration) in a ...
Kh.S. Karimov, S. Bellingeri, B.F. Irgaziev, H.B. Senin, I. Qazi, T.A. Khan, Y. Abe, U. Shafique   +7 more
doaj   +1 more source

Application of “high-fidelity and high-resolution” processing technology in thin reservoir identification: A case study of the deep Permian Maokou Formation in Penglai area, central Sichuan [PDF]

Youqicang pingjia yu kaifa
The deep Permian Maokou Formation in the Penglai area, central Sichuan, is located in the Sichuan Basin. It is a sedimentary formation primarily composed of carbonate rocks, with dolomite being the main lithology.
PENG Haotian, HE Qinglin, CHEN Kang, ZENG Ming, HE Zongqiang, TU Zhihui, KONG Lingxia, QU Bozhang
doaj   +3 more sources

Anisotropic mesh adaptation for 3D anisotropic diffusion problems with application to fractured reservoir simulation

, 2017
Anisotropic mesh adaptation is studied for linear finite element solution of 3D anisotropic diffusion problems. The M-uniform mesh approach is used, where an anisotropic adaptive mesh is generated as a uniform one in the metric specified by a tensor.
Huang, Weizhang, Li, Xianping
core   +1 more source

A Nonlinear Finite Volume Element Method Satisfying Maximum Principle for Anisotropic Diffusion Problems on Arbitrary Triangular Meshes

Communications in Computational Physics, 2019
Summary: A nonlinear finite volume element scheme for anisotropic diffusion problems on general triangular meshes is proposed. Starting with a standard linear conforming finite volume element approximation, a corrective term with respect to the flux jumps across element boundaries is added to make the scheme satisfy the discrete maximum principle.
Gao, Yanni, Wang, Shuai, Yuan, Guangwei, Hang, Xudeng   +3 more
openaire   +3 more sources

An anisotropic mesh adaptation method for the finite element solution of heterogeneous anisotropic diffusion problems

, 2010
Heterogeneous anisotropic diffusion problems arise in the various areas of science and engineering including plasma physics, petroleum engineering, and image processing.
Aavatsmark, Aavatsmark, Ait-Ali-Yahia, Borouchaki, Borouchaki, Brackbill, Brandts, Brandts, Burman, Castro-Díaz, Chan, Chan, Ciarlet, Ciarlet, Crumpton, Dompierre, Draˇgaˇnescu, Dvinsky, Eigestad, Ern, Frey, Gűnter, Gűnter, Gűnter, Habashi, Huang, Huang, Huang, Huang, Huang, Jacquotte, Karras, Karátson, Karátson, Karátson, Knupp, Knupp, Kornhuber, Kuzmin, Křížek, Le Potier, Le Potier, Le Potier, Letniowski, Lipnikov, Liska, Mlacnik, Mumford, Nishikawa, Peraire, Perona, Rachowicz, Rachowicz, Remacle, Sharma, Sommerville, Stix, Stoyan, Stoyan, Strang, Varga, Varga, Weickert, Weizhang Huang, Xianping Li, Xu   +65 more
core   +1 more source

Spatial Directions, Anisotropy and Special Relativity [PDF]

, 2011
The concept of an objective spatial direction in special relativity is investigated and theories assuming light-speed isotropy while accepting the existence of a privileged spatial direction are classified.
Mamone-Capria, Marco
core   +1 more source

Non‐linear flux‐splitting schemes with imposed discrete maximum principle for elliptic equations with highly anisotropic coefficients

International Journal for Numerical Methods in Fluids, 2011
AbstractFamilies of flux‐continuous, locally conservative, finite‐volume schemes have been developed for solving the general tensor pressure equation of petroleum reservoir simulation on structured and unstructured grids. The schemes are applicable to diagonal and full tensor pressure equation with generally discontinuous coefficients and remove the O ...
Pal, Mayur, Edwards, Michael G.
openaire   +4 more sources

Laws of crack motion and phase-field models of fracture

, 2008
Recently proposed phase-field models offer self-consistent descriptions of brittle fracture. Here, we analyze these theories in the quasistatic regime of crack propagation.
Adda-Bedia, Alain Karma, Ambrosio, Amestoy, Aranson, Barenblatt, Bourdin, Brener, Broberg, Cotterell, Deegan, Eastgate, Eshelby, Eshelby, Francfort, Goldstein, Griffith, Gurtin, Hakim, Hauch, Henry, Henry, Hutchinson, Karma, Karma, Katzav, Landau, Marconi, Marder, Marder, Mumford, Oleaga, Rice, Sih, Sommer, Spatschek, Vincent Hakim, Wang, William   +38 more
core   +2 more sources