Results 71 to 80 of about 680,524 (357)

X-ray spectra and electronic structure of FeAs superconductors [PDF]

open access: yesPhys. Rev. B 78, 220503(R) (2008), 2008
The densities of the valence and conduction band electronic states of the newly discovered layered superconductors LaOFeAs, LaO$_{0.87}$F$_{0.13}$FeAs (Tc=26 K), SmO$_{0.95}$F$_{0.05}$FeAs and SmO$_{0.85}$F$_{0.15}$FeAs (Tc=43 K) are studied using soft X-ray absorption and emission spectroscopy combined with FP LAPW calculations of LaOFeAs, LaO$_{0.875}
arxiv   +1 more source

Effective Hamiltonian for FeAs-based superconductors [PDF]

open access: yesPhysical Review B, 2008
11 pages, 6 ...
Sheng Meng   +4 more
openaire   +4 more sources

Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

open access: yesAdvanced Engineering Materials, EarlyView.
The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono   +2 more
wiley   +1 more source

TECHNOLOGICAL SCENARIOS TO THE DEMAND FOR SUGARCANE

open access: yesFuture Studies Research Journal: Trends and Strategies, 2012
From the first decade of the 2000s, it is clear that there is an increase in discussions involving sustainability, including the bioenergy issue, to which Brazil has drawn the attention due to advances in the ethanol industry.
Ana Paula Franco Paes Leme Barbosa   +1 more
doaj   +1 more source

The interplay between magnetism, structure, and strong electron-phonon coupling in binary FeAs under pressure [PDF]

open access: yes, 2010
Unlike the ferropnictide superconductors, which crystallize in a tetragonal crystal structure, binary FeAs forms in an orthorhombic crystal structure, where the local atomic environment resembles a highly distorted variant of the FeAs4 tetrahdedral building block of the ferropnictide superconductors.
arxiv   +1 more source

FEA ’s Flow to the Future [PDF]

open access: yesMechanical Engineering, 2000
This article demonstrates the increasing use of finite element analysis (FEA) by engineers. FEA technology from ANSYS lets engineers simulate the airflow over and under an airplane wing. FEA is the use of a complex system of points—called nodes—that form a grid, or mesh, across a model.
openaire   +2 more sources

Bioinspired Design of Isotropic Lattices with Tunable and Controllable Anisotropy

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces nested isotropic lattices, integrating architectural elements like nesting orders and orientations inspired by bioarchitectures. The design enables tunable anisotropy across nine mono‐nest and twenty multi‐nest lattices with 252 parametric variations, demonstrating transitions from shear‐ to tensile‐compression‐dominant behaviors ...
Ramalingaiah Boda   +2 more
wiley   +1 more source

O Processo de Offshoring Internacional Ocorre Apenas de Países Desenvolvidos para as Economias Emergentes?

open access: yesInternext: Revista Eletrônica de Negócios Internacionais, 2012
The offshoring business is booming and what was used by few US pioneers are now spreading through the world (Economist Intelligent Unit, 2006). It is a very new issue at least regarding the origin of the expression and related to services and, even a ...
Paulo Roberto Gião   +1 more
doaj   +1 more source

Calibration of the bolt pretension by strain gauges vs. FEA [PDF]

open access: yesGrađevinski Materijali i Konstrukcije, 2016
When applying high strength bolts in friction connections, a load-bearing capacity depends on pretension force in the bolts as well as on friction coefficient found on friction surfaces.
Fric Nenad   +5 more
doaj   +1 more source

Ab initio investigation of FeAs/GaAs heterostructures for potential spintronic and superconducting applications [PDF]

open access: yes, 2011
Ultra-thin FeAs is of interest both as the active component in the newly identified pnictide superconductors, and in spintronic applications at the interface between ferromagnetic Fe and semiconducting GaAs. Here we use first-principles density functional theory to investigate the properties of FeAs/GaAs heterostructures. We find that the Fermi surface
arxiv   +1 more source

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