Results 231 to 240 of about 4,825,318 (291)
Some of the next articles are maybe not open access.
An Infant with Diffuse Lung Masses
Clinical Pediatrics, 2009Chronic granulomatous disease presenting as invasive pulmonary aspergillosis in an infant is described in this report. Symptoms of chronic, intermittent respiratory distress had been previously attributed to gastroesophageal regurgitation and asthma. The isolation of an unusual pathogen even from a nonsterile site, particularly when symptoms persist ...
Miltiadis, Douvoyiannis +2 more
openaire +2 more sources
Sonoluminescing bubbles and mass diffusion
Physical Review E, 1995The transduction of sound into light by a pulsating bubble in water occurs when its maximum radius is about ten times greater than its ambient radius. For such high-amplitude motion, the steady-state balance of mass flow between the bubble and gas dissolved in the surrounding fluid can be maintained by diffusion only at low partial pressures, about 3 ...
, Löfstedt +3 more
openaire +2 more sources
2023
Abstract In this chapter, we investigate the diffusion of mass education. We define the establishment of a “mass education system” in a country as an exceedance of the threshold of an overall enrolment of 40% in primary education for boys and girls combined.
Fabian Besche-Truthe +2 more
openaire +1 more source
Abstract In this chapter, we investigate the diffusion of mass education. We define the establishment of a “mass education system” in a country as an exceedance of the threshold of an overall enrolment of 40% in primary education for boys and girls combined.
Fabian Besche-Truthe +2 more
openaire +1 more source
Mass transition and mass diffusion coefficients in a diffuse interface model
Physica Scripta, 2019Abstract The purpose of this paper is to determine the mass transition and mass diffusion coefficients in the diffuse interface model. By means of the thermodynamic probabilities of molecules transiting (phase change) and shifting (diffusing), the rate of mass transition and the mass diffusion flux are derived first. By comparing them
Lun Sheng Pan +3 more
openaire +1 more source
Mass and Thermal Diffusivity Algorithms
Annals of the New York Academy of Sciences, 2002Abstract: Mass and thermal diffusivity measurements conducted on Earth are prone to contamination by uncontrollable convective contributions to the overall transport. Previous studies of mass and thermal diffusivities conducted on spacecraft have demonstration the gain in precision, and lower absolute values, resulting from the reduced convective ...
R Michael, Banish +4 more
openaire +2 more sources
Constitutive Relations of Thermal and Mass Diffusion
Journal of Non-Equilibrium Thermodynamics, 2020AbstractNon-equilibrium thermodynamics provides a general framework for the description of mass and thermal diffusion, thereby including also cross-thermal and material diffusion effects, which are generally modeled through the Onsager coupling terms within the constitutive equations relating heat and mass flux to the gradients of temperature and ...
Bertei A, Lamorgese A, Mauri R
openaire +1 more source
2020
It is a well-known fact that physical and mechanical properties of crystalline solid materials depend on the type of atomic structure and related grain morphology. Of special interest are some steels (Fe), silicon (Si), and germanium (Ge) since they have been studied extensively.
openaire +1 more source
It is a well-known fact that physical and mechanical properties of crystalline solid materials depend on the type of atomic structure and related grain morphology. Of special interest are some steels (Fe), silicon (Si), and germanium (Ge) since they have been studied extensively.
openaire +1 more source
Advances in Space Research, 1988
Abstract Dimensionless number analysis indicates that diffusion-controlled conditions with liquid samples having characteristic dimensions larger than one millimetre can only be established under microgravity conditions. Consequently, heat and mass transport properties of fluids can only be quantitatively investigated in space.
openaire +1 more source
Abstract Dimensionless number analysis indicates that diffusion-controlled conditions with liquid samples having characteristic dimensions larger than one millimetre can only be established under microgravity conditions. Consequently, heat and mass transport properties of fluids can only be quantitatively investigated in space.
openaire +1 more source
Diffusion of clusters with randomly growing masses
Physical Review E, 1995Diffusion of fractal clusters of dimension ${\mathit{d}}_{\mathit{f}}$ in a three-dimensional space is investigated. The diffusion process is assumed to be modeled by a standard parabolic diffusion equation but with a random diffusion coefficient.
Łuczka, Jerzy +2 more
openaire +2 more sources
Analysis of nonlinear mass and energy diffusion
Physical Review A, 1985Before a complete analysis can be made of the radial transport of mass and energy in the presence of magnetic fields, the nonlinear diffusion of mass and energy across magnetic fields must be well understood. ' In pursuit of this goal, this paper is concerned with a mathematical analysis of a simple model of slow diffusive selfrelaxation of a ...
, Rosenau, , Hyman
openaire +2 more sources