This study examines 1211 cases of coincident ozone profiles derived from 1164 Umkehrs and 928 SAGE II profiles within 1000 km and 12 hours between October 1984 and April 1989 to study the stratospheric-aerosol effect on Umkehr ozone profiles. Because of the close correspondence of stratospheric aerosol optical depth at the SAGE II-measured 0.525 micron wavelength and the extrapolated 0.32 Umkeh...

In this study, we employed a geographic information system (GIS)-based approach to identify sites suitable for large-scale solar photovoltaic (PV) power plant installations in Mongolia. Accordingly, cells of 30 × m were used, and data based on seven criteria, including annual global horizontal radiation, average temperature, elevation, slope, slope direction (aspect), distances from main roads ...

bacterial vaginosis or non-specific vaginitis describes the disease caused by a change in the normal flora of the vagina, which leads to the elimination of lactobacilli, generating hydrogen peroxide and excess growth of bacteria, particularly anaerobic bacteria. this disease is the most prevalent infection of the female genital tract, and the rate of frequency of anaerobic bacteria, specificall...

The surface free energies of seven different facets tungsten (W) are obtained up to the melting point with full account all relevant thermal excitations; in particular, atomic vibrations, electronic excitations, and their mutual coupling. latter is done using ab initio molecular dynamics simulations coupled thermodynamic integration technique. In this way, calculations contain almost no error b...

soil conservation and control of erosion is a basic problem in all countries. the goal of this research is to estimate erosion and sediment yield in ekbatan dam drainage basin by erosion potential method (epm), using geographic information system (gis). the basin is located in hamedan province, west of iran, in a cold and semi- arid region, with an average annual rainfall of 334mm. the study ar...

Landslides are a major natural hazard, threatening communities and infrastructure worldwide. The mitigation of these hazards relies on the understanding their causes triggering processes, which depends directly soil properties, land use, changes over time. In this study, we propose novel framework to estimate probability failure in highly developed urban areas. combines remote sensing geophysic...