Results 101 to 110 of about 8,007,372 (244)

Phase-field-crystal model for liquid crystals

, 2010
Based on static and dynamical density functional theory, a phase-field-crystal model is derived which involves both the translational density and the orientational degree of ordering as well as a local director field. The model exhibits stable isotropic,
de Gennes P G, Emmerich H, Frenkel D, Graf H, Grinfeld M A, Hartmut Löwen, Löwen H, Prieler R, Roth R   +8 more
core   +1 more source

Phase diagram of the fully frustrated transverse-field Ising model on the honeycomb lattice

, 2010
Motivated by the current interest in the quantum dimer model on the triangular lattice, we investigate the phase diagram of the closely related fully-frustrated transverse field Ising model on the honeycomb lattice using classical and semi-classical ...
Coletta, T., Coletta, T., Korshunov, S. E., Korshunov, S. E., Mila, F., Mila, F., Picon, J-D, Picon, J-D   +7 more
core   +1 more source

Quantum fluctuation induced ordered phase in the Blume-Capel model

, 2004
We consider the Blume-Capel model with the quantum tunneling between the excited states. We find a magnetically ordered phase transition induced by quantum fluctuation in a model.
Blume R., Boukheddaden K., Chakrabarti B. K., Koseki O., Nishino M., Todoroki N., Yamada Y.   +6 more
core   +2 more sources

Strain and temperature engineering of energy storage performance in ferroelectric/paraelectric superlattices

Tạp chí Khoa học và Công nghệ
This study investigates the effects of biaxial strain and temperature on polarization domains and energy storage properties of lead titanate/strontium titanate superlattices through phase-field simulations. The superlattice exhibits periodic polarization
Ha Thi Dang, Dang Thi Hong Hue, Ba-Hieu Vu, Trong-Giang Nguyen, Van-Hai Dinh, Le Van Lich   +5 more
doaj   +1 more source

Dynamic model and stationary shapes of fluid vesicles

, 2006
A phase-field model that takes into account the bending energy of fluid vesicles is presented. The Canham-Helfrich model is derived in the sharp-interface limit. A dynamic equation for the phase-field has been solved numerically to find stationary shapes
A. Hernández-Machado, Alava, Allain, Biben, Cahn, Canham, Du, Du, Edidin, Evans, F. Campelo, Goldstein, Gompper, Helfrich, Jülicher, Kraus, Kumar, Laradji, Noguchi, Noguchi, Prost, Ringsdorf, Safran, Seifert, Seifert, Seifert, Seifert, Sens, Taniguchi, Tsafrir, Tsafrir, Yeung, Zimmerberg   +32 more
core   +1 more source

Simulation of size effects by a phase field model for fracture

Theoretical and Applied Mechanics Letters, 2014
In phase field fracture models the value of the order parameter distinguishes between broken and undamaged material. At crack faces the order parameter interpolates smoothly between these two states of the material, which can be regarded as phases.
Charlotte Kuhn, Ralf Müller
doaj   +1 more source

Tip Oscillation of Dendritic Patterns in a Phase Field Model

, 2002
We study dendritic growth numerically with a phase field model. Tip oscillation and regular side-branching are observed in a parameter region where the anisotropies of the surface tension and the kinetic effect compete.
Sakaguchi, Hidetsugu, Tokunaga, Seiji
core   +1 more source

SIMULATION OF Xe REDISTRIBUTION IN UO2

TASK Quarterly, 2011
The transport of fission gases in UO2 based nuclear fuels has a significant effect on the fuel performance. They can induce swelling of the fuel by the nucleation of gas bubbles within the fuel, and increase the mechanical interaction between the UO2 ...
LUIS ALBERTO CASILLAS TRUJILLO
doaj  

Quasi-Static and Dynamic Crack Propagation by Phase Field Modeling: Comparison with Previous Results and Experimental Validation

Applied Sciences
In this paper, experimental tensile tests for pre-cracked high Carbon steel ‘C90’ specimens were performed for quasi-static and dynamic loading. High loading velocity affects the crack patterns by preventing deflection.
Yosra Kriaa, Yassine Hersi, Amine Ammar, Bassem Zouari   +3 more
doaj   +1 more source

Induced QCD at Large N

, 1992
We propose and study at large N a new lattice gauge model , in which the Yang-Mills interaction is induced by the heavy scalar field in adjoint representation.
A.A. Migdal, Brezin, Douglas, Douglas, Gross, Harich-Chandra, Itzykyson, Mehta, V.A. Kazakov   +8 more
core   +1 more source