Results 31 to 40 of about 6,837,805 (254)

A Natural Supersymmetric Model with MeV Dark Matter [PDF]

open access: yes, 2008
It has previously been proposed that annihilating dark matter particles with MeV-scale masses could be responsible for the flux of 511 keV photons observed from the region of the Galactic Bulge.
Hooper, Dan, Zurek, Kathryn M.
core   +3 more sources

Determinants of smallholder farmers’ participation and level of participation in small-scale irrigation practice in Gemechis district, West Hararghe Zone, Ethiopia

open access: yesCogent Engineering, 2021
The study was conducted to assess factors that determine a household’s participation and intensity of use in the Gemechis district. A multi-stage sampling technique was employed and 167 sample households were selected by using the Cochran formula.
Tale Geddafa   +2 more
doaj   +1 more source

Experimental investigations on small-and full-scale ship models with polyurea coatings subjected to underwater explosion

open access: yesDefence Technology, 2022
Nowadays, the mitigation of damage to a ship caused by the underwater explosion attracts more and more attention from the modern ship designers. In this study, two kinds of scale tests were conducted to investigate the effects of polyurea coatings on the
Jian Liu   +6 more
doaj   +1 more source

Abelian Higgs Cosmic Strings: Small Scale Structure and Loops [PDF]

open access: yes, 2008
Classical lattice simulations of the Abelian Higgs model are used to investigate small scale structure and loop distributions in cosmic string networks. Use of the field theory ensures that the small-scale physics is captured correctly.
A. Vilenkin   +5 more
core   +2 more sources

Development of Small-Scale Model House Using Cupola Slag [PDF]

open access: yesE3S Web of Conferences
The increase in waste from industries has resulted in growing concern for the environment. This form of waste is directly deposited on land, leading to contamination.
Kasare Yogesh   +6 more
doaj   +1 more source

Small-scale behaviour in deterministic reaction models [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2010
In a recent paper published in this journal [J. Phys. A: Math. Theor. 42 (2009) 495004] we studied a one-dimensional particles system where nearest particles attract with a force inversely proportional to a power of their distance and coalesce upon encounter.
Paolo Politi, Daniel benAvraham
openaire   +3 more sources

Model for Small neutrino masses at the TeV Scale

open access: yes, 2001
We propose a model for neutrino mass generation in wich no physics beyond a TeV is required. We extend the standard model by adding two charged singlet fields with lepton number two.
Babu K. S.   +7 more
core   +1 more source

3D Small-scale Fire Modeling Experiments

open access: yesProcedia Engineering, 2017
Abstract The paper deals with problematic of fire experiments connected to Flashover phenomena. Real 3D experiments in small-scale need to be preparated in sence of exactness by exact calculations. The thermocouples are installed in three layers horizontally, and in five layers vertically.
Maroš Krajčír, Jana Müllerová
openaire   +1 more source

Direct Energy Cascade in Two-Dimensional Compressible Quantum Turbulence [PDF]

open access: yes, 2010
We numerically study two-dimensional quantum turbulence with a Gross--Pitaevskii model. With the energy initially accumulated at large scale, quantum turbulence with many quantized vortex points is generated.
L'vov, Victor S.   +2 more
core   +1 more source

Modelling Small-scale Flashing Propane Jets

open access: yesChemical Engineering Transactions, 2016
Accidental releases of pressure liquefied materials may result in instantaneously vaporising, or flashing, jets which mix with ambient air and disperse. In consequence modelling, it is important to correctly describe the initial jet behaviour as this can influence the subsequent vapour dispersion.
openaire   +2 more sources

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