نتایج جستجو برای: bergametti
تعداد نتایج: 7 فیلتر نتایج به سال:
The paper is of great interest. It introduces a 3D model coupling effects between wind and snow particles. The coupled model is evaluated on a flat erodible snow surface under various wind conditions and is compared to wind tunnel experiments, the results of which are published in the literature. The model takes into account all involved physical processes and allows to better understand behavi...
Extended abstract 1- INTRODUCTION Atmospheric aerosols, solid and liquid particles in the atmosphere, play a crucial role in the atmospheric radiation equilibrium. These particles have an influence on the scattering and absorption of short wavelength radiation, and on the other hand, affect radiation absorption and emission in long wavelengths. Dust particles are among the importan...
Endothelial cell-cell adhesion is important for proper blood vessel formation, maintaining the integrity of the vasculature, and regulating diffusion of molecules between the luminal and abluminal faces of blood vessels. Weakened endothelial junctions are implicated in intracranial hemorrhage (ICH), which are severe and debilitating forms of stroke in humans that include the cerebral cavernous ...
Endothelial cell-cell adhesion is important for proper blood vessel formation, maintaining the integrity of the vasculature, and regulating diffusion of molecules between the luminal and abluminal faces of blood vessels. Weakened endothelial junctions are implicated in intracranial hemorrhage (ICH), which are severe and debilitating forms of stroke in humans that include the cerebral cavernous ...
An improved model representation of mineral dust cycle is critical to reducing the uncertainty of dust-induced environmental and climatic impact. Here we present a mesoscale model study of the seasonal dust activity in the semiarid drylands of Central Asia, focusing on the effects of wind speed, soil moisture, surface roughness heterogeneity, and vegetation phenology on the threshold friction v...
the first step in studying dust events is the estimation of dust emission from sources. in this study, the simulations of the vertical dust flux (vdf) over iran by the mba (marticorena, bergametti, and alfaro) and shao schemes are compared. the mba scheme is energy-based and derived on the basis of energy balance between the kinetic energy of saltating particles and binding energy of the surfac...
Potential aerosol release rates during wind erosion of soils have been quantified by such methods as sandSuspendable-size soil particles are released during wind erosion and blasting aggregates in laboratory settings (Alfaro et al., transported downwind, impacting regional air quality. Of particular concern are those particles with a mean aerodynamic diameter of 1998), measuring concentrations ...
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