Non-LTE Abundances and Consequences for the Evolution of the alpha elements in the Galaxy [PDF]
, 2000 Abundances of alpha-elements such as Ca and Mg in disk and halo stars are usually derived from equivalent widths lines measured on high resolution spectra, and assuming Local Thermodynamic Equilibrium (LTE) .
Idiart, T., Thevenin, F.
core +3 more sources
Feasibility of using Nanofiltration membranes to delay Reverse Osmosis membrane fouling and to reduce energy consumption (BWC desalination plant) [PDF]
Journal of Water and Environmental Nanotechnology, 2023 The Beni Saf Water Company (BWC) desalination plant in Ain Témouchent (Algeria) uses reverse osmosis technique. This process, which is based on dense membranes operating at high pressure, produces a permeate with characteristics that exceeds the ...
Mourad Berrabah +3 more
doaj +1 more source
Identification of snowfall microphysical processes from Eulerian vertical gradients of polarimetric radar variables [PDF]
Atmospheric Measurement Techniques, 2021 Polarimetric radar systems are commonly used to study the microphysics of precipitation. While they offer continuous measurements with a large spatial coverage, retrieving information about the microphysical processes that govern the evolution of ...
N. Planat +5 more
doaj +1 more source
A characterisation of Alpine mesocyclone occurrence [PDF]
Weather and Climate Dynamics, 2021 This work presents a characterisation of mesocyclone occurrence and frequency in the Alpine region, as observed from the Swiss operational radar network; 5 years of radar data are processed with a thunderstorm detection and tracking algorithm and ...
M. Feldmann +4 more
doaj +1 more source
Synoptic conditions and atmospheric moisture pathways associated with virga and precipitation over coastal Adélie Land in Antarctica [PDF]
The Cryosphere, 2020 Precipitation falling over the coastal regions of Antarctica often experiences low-level sublimation within the dry katabatic layer. The amount of water that reaches the ground surface is thereby considerably reduced. This paper investigates the synoptic
N. Jullien +5 more
doaj +1 more source
From model to radar variables: a new forward polarimetric radar operator for COSMO [PDF]
Atmospheric Measurement Techniques, 2018 In this work, a new forward polarimetric radar operator for the COSMO numerical weather prediction (NWP) model is proposed. This operator is able to simulate measurements of radar reflectivity at horizontal polarization, differential reflectivity as ...
D. Wolfensberger, A. Berne
doaj +1 more source
Microphysics and dynamics of snowfall associated with a warm conveyor belt over Korea [PDF]
Atmospheric Chemistry and Physics, 2020 On 28 February 2018, 57 mm of precipitation associated with a warm conveyor belt (WCB) fell within 21 h over South Korea. To investigate how the large-scale circulation influenced the microphysics of this intense precipitation event, we ...
J. Gehring +5 more
doaj +1 more source
Hydrometeor classification through statistical clustering of polarimetric radar measurements: a semi-supervised approach [PDF]
Atmospheric Measurement Techniques, 2016 Polarimetric radar-based hydrometeor classification is the procedure of identifying different types of hydrometeors by exploiting polarimetric radar observations.
N. Besic +5 more
doaj +1 more source
LTE/LTE‐Advanced Cellular Communication Networks [PDF]
Journal of Electrical and Computer Engineering, 2010 1Department of Electrical and Computer Engineering, The University of British Columbia, Vancouver, BC, Canada V6T 1Z4 2Centre for Wireless Network Design, University of Bedfordshire, Bedfordshire LU1 3JU, UK 3NSN Research, Nokia Siemens Networks, 02610 Espoo, Finland 4Key Laboratory of Universal Wireless Communication, Beijing University of Posts and ...
Cyril Leung +3 more
openaire +2 more sources