Buscar
Mostrando ítems 1-10 de 699
"Bristle-State" Friction: Modeling Slip Initiation and Transient Frictional Evolution From High-Velocity Earthquake Rupture Experiments
(Frontiers Media, 2020)
Fracture mechanics theory and seismological observations suggest that slip-rate is constantly changing during earthquake rupture, including dramatic acceleration from static conditions to high velocity sliding followed by ...
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions
(Elsevier B.V., 2016-12-01)
In the present work, we present an approach to handle transient flows of elasto-viscoplastic thixotropic (EVPT) materials under the action of the gravity force field and subjected to free-surface boundary conditions that ...
"Modelo de simulação de um refrigerador por absorção/difusão operando em regime transiente"
(Universidade Federal de Minas GeraisUFMG, 2014-09-26)
In this study, a model for the transient simulation of a refrigerator for absorption / distribution containing ammonia (as refrigerant) water (absorbent fluid) and hydrogen (as inert gas) is displayed. The proposed simulation ...
Time-dependent induced potentials in convoy electron emission
(Elsevier Science, 2006-12)
We study the time-dependent induced potentials at the convoy electron position due to the self-interaction with a metal surface and to the shock wave created by the positive hole (vacancy) left. The time evolution of these ...
Análise do período transiente da simulação de sistemas não terminais
(Universidade Federal de Minas GeraisUFMG, 2012-03-02)
The selection of a suitable warm-up period for a discrete-event simulation is still a difficult choice to determine. Some methods have been developed and will be briefly reviewed here. There are still no definitive criteria ...
EVOLUTION AND LIFETIME OF TRANSIENT CLUMPS IN THE TURBULENT INTERSTELLAR MEDIUM
(IOP PUBLISHING LTD, 2011)
We study the evolution of dense clumps and provide an argument that the existence of the clumps is not limited by their crossing times. We claim that the lifetimes of the clumps are determined by turbulent motions on a ...
A influência da infestação pelo mexilhão dourado em condutos forçados das centrais geradoras hidrelétricas no Brasil: uma análise das perdas e do transiente hidráulico
(Universidade Federal de Minas GeraisUFMG, 2016-12-20)
The golden mussel is a bivalve freshwater mollusc that causes several environmental and economic problems wherever it is found. In Brazil, the first detection of this mollusc took place in the late 1990s. Among all the ...
Transient effectiveness factor. Simultaneous determination of kinetic, diffusion and adsorption equilibrium parameters in porous catalyst particles under diffusion control conditions
(Elsevier Science Sa, 2018-08)
A method to determine kinetics, diffusion and adsorption equilibrium parameters simultaneously in porous catalyst particles, where a first order chemical reaction occurs under diffusion control conditions in batch reactor, ...