Πλοήγηση ανά Θέμα "DIFFUSION"
Αποτελέσματα 1-18 από 18
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Analysis of multiplicity phenomena in longitudinal fins under multi-boiling conditions
(2004)A numerical bifurcation analysis is carried out in order to determine the solution structure of longitudinal fins subject to multi-boiling heat transfer mode. The thermal analysis can no longer be performed independently ... -
Automated differentiation of glioblastomas from intracranial metastases using 3T MR spectroscopic and perfusion data
(2013)Purpose Differentiation of glioblastomas from metastases is clinical important, but may be difficult even for expert observers. To investigate the contribution of machine learning algorithms in the differentiation of ... -
Bubble dynamics during degassing of liquids at microgravity conditions
(2006)This work investigates the growth of bubbles generated in a liquid saturated with dissolved CO(2) when its temperature is rapidly and locally raised above the saturation value, still below the boiling point of the test ... -
Bubbles growing in supersaturated solutions at reduced gravity
(2004)This work investigates bubbles growing in a liquid saturated with a dissolved gas when its temperature is locally raised above its saturation value, yet below boiling. Local supersaturation is realized by giving heat pulses ... -
Conductivity of Gd-doped BaCeO3 protonic conductor in H-2-H2O-O-2 atmospheres
(2014)In the present investigation, a radically new and simple method of evaluation of the proton conductivity is proposed. This method is based on the conductivity measurement of ceramic materials depending on the oxygen partial ... -
Corrosion-induced hydrogen embrittlement in aluminum alloy 2024
(2006)The present paper focuses on the observed corrosion-induced embrittlement of alloy 2024 and tries to answer the key question on whether the observed embrittlement is attributed to hydrogen uptake and trapping in the material. ... -
Ethanol/water mixture permeation through a Nafion (R) based membrane electrode assembly
(2007)In the present work, the permeation behavior of ethanol/water mixtures through a Nafion((R))- 115 based membrane electrode assembly (MEA) has been investigated. The crossover measurements were carried out in a single fuel ... -
Fast spectroscopic multiple analysis (FASMA) for brain tumor classification: a clinical decision support system utilizing multi-parametric 3T MR data
(2015)A clinical decision support system (CDSS) for brain tumor classification can be used to assist in the diagnosis and grading of brain tumors. A Fast Spectroscopic Multiple Analysis (FASMA) system that uses combinations of ... -
A fractional Brownian motion model for time series produced by constant temperature molecular dynamics simulations
(2002)In the present work we performed an analysis of time series of instantaneous temperature and pressure produced during constant temperature molecular dynamics. Simulations were applied to a nickel oxide grain boundary for ... -
A homogenous random fractal model for time series produced by constant energy molecular dynamics simulations
(2003)In the present work we present an analysis of time series of instantaneous temperature and pressure produced during microcanonical (constant energy) molecular dynamics (MD). Simulations were applied to a nickel oxide grain ... -
Modelling three-way catalytic converters: an effort to predict the effect of precious metal loading
(2007)The need to deliver ultra-low emitting vehicles at a reasonable cost is driving the automotive industry to invest significant manpower in computer aided design and optimization of exhaust treatment systems. The significant ... -
Noise perturbation of the thermostat in constant temperature molecular dynamics simulations
(2004)In this work we study the effects of noise applied on the thermostat in the case of the constant temperature molecular dynamics simulations. We consider the cases of additive and or multiplicative noise. We then examine ... -
Physiology of pericardial fluid production and drainage
(2015)The pericardium is one of the serosal cavities of the mammals. It consists of two anatomical structures closely connected, an external sac of fibrous connective tissue, that is called fibrous pericardium and an internal ... -
Self-similar growth of a gas bubble induced by localized heating: the effect of temperature-dependent transport properties
(2005)A gas bubble growing in a saturated liquid under the action of an internal heat source is studied theoretically as a model problem for the growth of a bubble around a miniature spherical heater submerged in the liquid. In ... -
Unified description of size effects of transport properties of liquids flowing in nanochannels
(2012)The present work connects transport properties of simple fluids flowing in nanochannels: the diffusion coefficient, the shear viscosity and the thermal conductivity. We used non-equilibrium molecular dynamics (NEMD) ... -
Vibrational and topological properties of selected NiO surfaces
(2006)We present a study of the vibrational properties of the (100) and (110) surfaces of nickel oxide. We performed molecular dynamics simulations over a wide temperature range and we calculated the phonon local density of ... -
Vibrational properties of a Sigma 5(310) 001 NiO grain boundary as a function of temperature: A molecular dynamics simulation
(2002)In this communication we present results concerning the study of the vibrational properties of a Sigma5(310)[001] NiO grain boundary by molecular dynamics simulations. The phonon density of states of the cation and anion ... -
Vibrational properties of a Sigma 5(310) 001 NiO grain boundary: a local analysis by molecular dynamics simulation
(2002)Using molecular dynamics and a rigid ion potential we studied the vibrational properties of a Sigma5(310)[001] tilt grain boundary in NiO. We calculated the local density of states and the mean square displacement (MSD) ...