Results 21 to 30 of about 948,029 (187)

Rate theory for correlated processes: Double-jumps in adatom diffusion [PDF]

open access: yes, 1997
We study the rate of activated motion over multiple barriers, in particular the correlated double-jump of an adatom diffusing on a missing-row reconstructed Platinum (110) surface.
A. F. Voter   +20 more
core   +3 more sources

Permanent Thermohaline Staircases in the Tyrrhenian Sea

open access: yesGeophysical Research Letters, 2019
The longest historical time series (14 years, from 2003 to 2016) of temperature and salinity of thermohaline staircases with highly homogeneous and reliable data ever observed is here presented and studied.
S. Durante   +5 more
doaj   +1 more source

Evidence for double diffusion in temperate meromictic lakes [PDF]

open access: yesHydrology and Earth System Sciences, 2010
We present CTD-measurements from two shallow meromictic mining lakes. The lakes, which differ in size and depth, show completely different seasonal mixing patterns in their mixolimnia. However, the measurements document the occurrence of similar seasonal
C. von Rohden, B. Boehrer, J. Ilmberger
doaj   +1 more source

Multiple Solutions of Double-Diffusive Convection in Porous Media due to Opposing Heat and Mass Fluxes on Vertical Walls

open access: yesJournal of Thermal Science and Technology, 2013
The double-diffusive convection in a porous medium due to the opposing heat and mass fluxes on the vertical walls is solved analytically. In the former analysis, we investigated only when ω < π, the parameter arising from a combination among ...
Yoshio MASUDA   +2 more
doaj   +1 more source

Spin Diffusion in Double-Exchange Manganites

open access: yes, 2003
The theoretical study of spin diffusion in double-exchange magnets by means of dynamical mean-field theory is presented. We demonstrate that the spin-diffusion coefficient becomes independent of the Hund's coupling JH in the range of parameters JH*S >> W
A. L. Chernyshev   +16 more
core   +1 more source

Gold in graphene: in-plane adsorption and diffusion

open access: yes, 2008
We study the bonding and diffusion of Au in graphene vacancies using density-functional theory. Energetics show that Au adsorbs preferably to double vacancies, steadily in-plane with graphene.
Häkkinen, H., Koskinen, P., Malola, S.
core   +1 more source

Double crystal x-ray diffraction simulations of diffusion in semiconductor microstructures [PDF]

open access: yes, 1998
Diffusion in group IV, III-V and II-VI semiconductors is an interesting problem not only from a fundamental physics viewpoint but also in practical terms, since it could determine the useful lifetime of a device.
J. H. C. Hogg   +5 more
core   +1 more source

Research on a Random Mask Infection Countermeasure against Double Fault Attacks

open access: yesApplied Sciences, 2023
The infection countermeasure, in which the main idea is to prevent adversaries from exploiting faulty ciphertexts to break the key by spreading the induced fault, is a very effective countermeasure against fault attacks.
Weixiang Wu   +3 more
doaj   +1 more source

Classical diffusion in double-delta-kicked particles

open access: yes, 2004
We investigate the classical chaotic diffusion of atoms subjected to {\em pairs} of closely spaced pulses (`kicks) from standing waves of light (the $2\delta$-KP).
A. J. Lichtenberg   +4 more
core   +1 more source

Magnetized Oscillatory Double-diffusive Convection

open access: yesThe Astrophysical Journal, 2022
AbstractWe study the properties of oscillatory double-diffusive convection (ODDC) in the presence of a uniform vertical background magnetic field. ODDC takes place in stellar regions that are unstable according to the Schwarzschild criterion and stable according to the Ledoux criterion (sometimes called semiconvective regions), which are often ...
A. Sanghi   +3 more
openaire   +2 more sources

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