Results 31 to 40 of about 2,795 (136)

Phase relations in K_xFe_{2-y}Se_2 and the structure of superconducting K_xFe_2Se_2 via high-resolution synchrotron diffraction

open access: yes, 2012
Superconductivity in iron selenides has experienced a rapid growth, but not without major inconsistencies in the reported properties. For alkali-intercalated iron selenides, even the structure of the superconducting phase is a subject of debate, in part ...
A. Larson   +8 more
core   +1 more source

Efficient Wall-Modelled Large Eddy Simulation of Rotors using Homogenized Lattice Boltzmann Methods

open access: yes
Accurately capturing the dynamic forces acting on rotors as well as their wake effects presents a significant challenge for computational fluid dynamics (CFD) due to high Reynolds numbers and a large range of spatio-temporal scales. The present work proposes a novel blade-resolved wall-modeled large eddy simulation (WMLES) approach based on the lattice
Kummerländer, Adrian   +6 more
openaire   +2 more sources

High-accuracy Geant4 simulation and semi-analytical modeling of nuclear resonance fluorescence

open access: yes, 2018
Nuclear resonance fluorescence (NRF) is a photonuclear interaction that enables highly isotope-specific measurements in both pure and applied physics scenarios. High-accuracy design and analysis of NRF measurements in complex geometries is aided by Monte
Danagoulian, Areg   +2 more
core   +2 more sources

Phonon-drag effect in FeGa3

open access: yes, 2014
The thermoelectric properties of single- and polycrystalline FeGa3 are systematically investigated over a wide temperature range. At low temperatures, below 20 K, previously not known pronounced peaks in the thermal conductivity (400-800 W K^-1m-1) with ...
Cardoso-Gil, Raul   +6 more
core   +1 more source

Waveform Relaxation for the Computational Homogenization of Multiscale Magnetoquasistatic Problems

open access: yes, 2016
This paper proposes the application of the waveform relaxation method to the homogenization of multiscale magnetoquasistatic problems. In the monolithic heterogeneous multiscale method, the nonlinear macroscale problem is solved using the Newton--Raphson
Geuzaine, Christophe   +2 more
core   +1 more source

Pore-scale evaluation on hydrothermal performance in a microtube with homogeneous microporous media by lattice Boltzmann method

open access: yesResults in Physics
This study investigates the heat transfer and flow behavior of Al2O3-water nanofluid in micro-scale systems, using the lattice Boltzmann method (LBM) for numerical simulations. To implement the LBM code, FORTRAN home-made programming is employed. The research focuses on a three-dimensional microtube (500 μm diameter and 6,000 μm length) subjected to a ...
Saboura Yousefi   +4 more
openaire   +2 more sources

Diffusion of Mn interstitials in (Ga,Mn)As epitaxial layers

open access: yes, 2011
Magnetic properties of thin (Ga,Mn)As layers improve during annealing by out-diffusion of interstitial Mn ions to a free surface. Out-diffused Mn atoms participate in the growth of a Mn-rich surface layer and a saturation of this layer causes an ...
F. Jiménez-Villacorta   +10 more
core   +1 more source

Simulation of particles motion, deposition and loading in a channel with two built in square obstacles by Homogenized Lattice Boltzmann method

open access: yes, 2023
Abstract Loading of particles occurs in some industries and nature, such as slurry flow, aeolian landforms and also in filters. It can cause some difficulty in normal operation of devices and systems. Therefore, its study is necessary. In this research the motion, rolling, deposition and loading of some particle in a Poiseuille flow channel ...
openaire   +1 more source

Extrinsic electromagnetic chirality in all-photodesigned one-dimensional THz metamaterials

open access: yes, 2016
We suggest that all-photodesigned metamaterials, sub-wavelength custom patterns of photo-excited carriers on a semiconductor, can display an exotic extrinsic electromagnetic chirality in terahertz (THz) frequency range.
Brambilla, Massimo   +4 more
core   +1 more source

Application of general semi-infinite Programming to Lapidary Cutting Problems [PDF]

open access: yes, 2006
We consider a volume maximization problem arising in gemstone cutting industry. The problem is formulated as a general semi-infinite program (GSIP) and solved using an interiorpoint method developed by Stein.
Winterfeld, A.
core  

Home - About - Disclaimer - Privacy