Results 21 to 30 of about 1,715,817 (298)

Global transition path search for dislocation formation in Ge on Si(001) [PDF]

open access: yes, 2016
Global optimization of transition paths in complex atomic scale systems is addressed in the context of misfit dislocation formation in a strained Ge film on Si(001). Such paths contain multiple intermediate minima connected by minimum energy paths on the
A. Stukowski   +63 more
core   +2 more sources

Effects of Grain Size on the Diffusion Activation Energy and Melting Point

open access: yesChemical Engineering Transactions, 2017
A thermodynamic method based on bonding energy and surface thermodynamics was developed to accurately investigate the diffusion activation energy and melting point of metallic nanomaterials.
Mingchu Huang   +4 more
doaj   +1 more source

Overturn of ilmenite‐bearing cumulates in a rheologically weak lunar mantle [PDF]

open access: yes, 2019
©2019. American Geophysical UnionThe crystallization of the lunar magma ocean (LMO) determines the initial structure of the solid Moon. Near the end of the LMO crystallization, ilmenite‐bearing cumulates (IBC) form beneath the plagioclase crust.
Breuer, Doris   +5 more
core   +2 more sources

First-principles calculations of the diffusion of atomic oxygen in nickel: thermal expansion contribution [PDF]

open access: yes, 2007
Within the framework of density functional theory using the projector augmented-wave (PAW) method, we present some energetic properties of atomic oxygen interstitials in crystalline Ni, i.e.
Amarouche, Mohand   +2 more
core   +3 more sources

Theoretical study of the recombination of Frenkel pairs in irradiated silicon carbide [PDF]

open access: yes, 2007
The recombination of Frenkel pairs resulting from low energy recoils in 3C-SiC has been investigated using first principles and Nudged Elastic Band calculations. Several recombination mechanisms have been obtained, involving direct interstitial migration,
Lucas, Guillaume, Pizzagalli, Laurent
core   +2 more sources

VARIABLE ACTIVATION ENERGY PRINCIPLE TO MODEL OIL SHALE PYROLYSIS KINETICS; pp. 181–194 [PDF]

open access: yesOil Shale, 2017
The oil shale (OS) sample from Sultani mine, southern Jordan, was subjected to thermogravimetric/differential thermogravimetric (TG/DTG) and differential scanning calorimetry (DSC) analysis.
OMAR SALIM AL-AYED   +2 more
doaj   +1 more source

Dataset of the liquid water distribution in a biomimetic PEM fuel cell

open access: yesData in Brief
This dataset gathers the initial formation and the evolution of water content and distribution, as well as water evacuation, within a lung-inspired PEM (proton exchange membrane) fuel cell with a 50 cm2 active area for various operating conditions such ...
Alfredo Iranzo   +5 more
doaj   +1 more source

Experimental Research of Drying Characteristic of Red Banana in a Single Slope Direct Solar Dryer Based on Natural and Forced Convection

open access: yesFood Technology and Biotechnology, 2021
Research background. Traditionally, open sun drying method serves to dry the products for long time preservation. Solar drying is also employed to minimise the drying time to achieve the required moisture content.
Elavarasan Elangovan   +1 more
doaj  

Effect of electron irradiation on vortex dynamics in YBa_2Cu_3O_{7-x} single crystals

open access: yes, 2001
We report on drastic change of vortex dynamics with increase of quenched disorder: for rather weak disorder we found a single vortex creep regime, which we attribute to a Bragg-glass phase, while for enhanced disorder we found an increase of both the ...
A. A. Prodan   +38 more
core   +1 more source

ACTIVATION ENERGY FOR FISSION [PDF]

open access: yes, 1952
The experimentally determined exponential dependence of spontaneous fission rate on Z{sup 2}/A has been used to derive an expression for the dependence of the fission activation energy on Z{sup 2}/A. This expression has been used to calculate the activation energy for slow neutron induced fission and photofission.
openaire   +3 more sources

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