Results 21 to 30 of about 10,056,652 (288)

On the formation of lines in quantum phase space

open access: yesJournal of Physics A: Mathematical and Theoretical, 2023
Abstract We theoretically study the formation of lines in phase space using Wigner’s distribution W . In trapped quantum systems such lines form generically, crisscrossing phase space
Ole Steuernagel   +2 more
openaire   +3 more sources

Strong [O iii] λ5007 Compact Galaxies Identified from SDSS DR16 and Their Scaling Relations

open access: yesThe Astronomical Journal, 2023
Green-pea galaxies are a special class of star-forming compact galaxies with strong [O iii ] λ 5007 and considered as analogs of high-redshift Ly α -emitting galaxies and potential sources for cosmic reionization.
Weiyu Ding   +13 more
doaj   +1 more source

Planetesimal formation starts at the snow line [PDF]

open access: yes, 2017
Context. The formation stage of planetesimals represents a major gap in our understanding of the planet formation process. Late-stage planet accretion models typically make arbitrary assumptions about planetesimal and pebble distribution, while dust ...
Drążkowska, J.   +5 more
core   +2 more sources

Central line-associated bloodstream infections: Effect of patient and pathogen factors on outcome

open access: yesJournal of Global Infectious Diseases, 2023
Introduction: Patients on central lines are often having multiple morbidities, and invasive devices provide a niche for biofilm formation, which makes central line-associated bloodstream infections (CLABSIs), a serious concern in health-care settings ...
Bharathi Arunan   +7 more
doaj   +1 more source

THE FORMATION OF THE Hα LINE IN THE SOLAR CHROMOSPHERE [PDF]

open access: yesThe Astrophysical Journal, 2012
We use state-of-the-art radiation-MHD simulations and 3D non-LTE radiative transfer computations to investigate \Halpha\ line formation in the solar chromosphere and apply the results of this investigation to develop the potential of \Halpha\ as diagnostic of the chromosphere.
J. Leenaarts   +2 more
openaire   +2 more sources

Finite-time singularity formation at a magnetic neutral line in Hall magnetohydrodynamics [PDF]

open access: yes, 2015
The formation of a current sheet in a weakly collisional plasma can be modelled as a finite-time singularity solution of magnetohydrodynamic equations.
Litvinenko, Yuri E.   +3 more
core   +1 more source

Non-LTE LINE FORMATION FOR S I

open access: yesOdessa Astronomical Publications, 2008
A comprehensive model atom for non-LTE line formation calculations for neutral sulfur in the spectra of F-K stars is presented. All the calculations were made using the 65-level atomic model of S I and Kurucz's atmosphere models with Teff = 5000 ÷ 6500 K,
S. A. Korotin
doaj   +1 more source

Penser le métier par la formation [PDF]

open access: yes, 2020
Cet ouvrage examine, à partir de chantiers empiriques, les questions posées par la conception des dispositifs au long de parcours de formation professionnelle. Il s’adresse au monde de la recherche, mais aussi aux étudiant·e·s, aux praticien·ne· s engagé·
Charlier, Evelyne   +3 more
core   +1 more source

Cyclotron line formation in a relativistic outflow [PDF]

open access: yesAIP Conference Proceedings, 1996
There is mounting evidence that, if gamma-ray bursters are Galactic in origin, they are located in a Galactic corona at distances greater than 100 kpc. This has created a need to explore new models of cyclotron line formation. In most previous calculations the line-forming region was modeled as a static slab of plasma, optically thin to continuum ...
Isenberg, Michael   +2 more
openaire   +2 more sources

FEED CONSUMPTION IN RELATION TO EGG FORMATION AND ENVIRONMENTAL TEMPERATURE IN DANDARAWI AND HY-LINE STRAINS. [PDF]

open access: yesJournal of Animal and Poultry Production, 2007
A total of one hundred eighty, 40 weeks old from both Dandarawi and Hy-line strains were used in this experiment. Birds within each strain were subdivided into two groups.
M. Abdelnabi,
doaj   +1 more source

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