Results 1 to 10 of about 1,906,594 (292)

Composite electric S-brane solutions with maximal number of branes

open access: yes, 2004
In this paper we consider (n+1)-dimensional cosmological model with scalar field and antisymmetric (p+2)-form. Using an electric composite Sp-brane ansatz the field equations for the original system reduce to the equations for a Toda-like system with n(n-
D Singleton   +24 more
core   +1 more source

Study on computational efficiency of composite schemes for convection-diffusion equations using single-grid and multigrid methods

open access: yesJournal of Thermal Science and Technology, 2015
The computational efficiency of different composite schemes for the convection terms of the convection-diffusion equations is systematically studied in this paper.
Jingfa LI   +4 more
doaj   +1 more source

Dirac Neutrino Masses with Planck Scale Lepton Number Violation

open access: yes, 2003
It is shown how pure Dirac neutrino masses can naturally occur at low energies even in the presence of Planck scale lepton number violation. The geometrical picture in five dimensions assumes that the lepton number symmetry is explicitly broken on the ...
E. Witten   +14 more
core   +3 more sources

Investigation of Drying Process Kinetics of Composite Granules

open access: yesEnergy Engineering and Control Systems, 2022
Among the large number of modern environmental problems in Ukraine, waste of wastewater treatment stations occupies a special place. During biological water treatment, the separated sludge deposits are sent to the silt fields, which are the biggest ...
Zhanna Petrova
doaj   +1 more source

Effective mass staircase and the Fermi liquid parameters for the fractional quantum Hall composite fermions

open access: yes, 2001
Effective mass of the composite fermion in the fractional quantum Hall system, which is of purely interaction originated, is shown, from a numerical study, to exhibit a curious nonmonotonic behavior with a staircase correlated with the number (=2,4 ...
A. Lopez   +20 more
core   +1 more source

A Simple Algorithm for Prime Factorization and Primality Testing

open access: yesJournal of Mathematics, 2022
We propose a new simple and faster algorithm to factor numbers based on the nature of the prime numbers contained in such composite numbers. It is well known that every composite number has a unique representation as a product of prime numbers.
Kabenge Hamiss
doaj   +1 more source

Finite Element Analysis on Inelastic Mechanical Behavior of Composite Beams Strengthened With Carbon-Fiber-Reinforced Polymer Laminates Under Negative Moment

open access: yesFrontiers in Materials, 2022
This work studies the improvement in the inelastic mechanical property of steel-concrete composite beams strengthened by carbon-fiber-reinforced polymer (CFRP) laminates under a negative moment.
Aiming Song   +3 more
doaj   +1 more source

Thermal Conductivity of Thermally-Isolating Polymeric and Composite Structural Support Materials Between 0.3 and 4 K

open access: yes, 2008
We present measurements of the low-temperature thermal conductivity of a number of polymeric and composite materials from 0.3 to 4 K. The materials measured are Vespel SP-1, Vespel SP-22, unfilled PEEK, 30% carbon fiber-filled PEEK, 30% glass-filled PEEK,
Barucci   +15 more
core   +1 more source

Strongly Correlated States of Ultracold Rotating Dipolar Fermi Gases [PDF]

open access: yes, 2007
We study strongly correlated ground and excited states of rotating quasi-2D Fermi gases constituted of a small number of dipole-dipole interacting particles with dipole moments polarized perpendicular to the plane of motion. As the number of atoms grows,
Klaus Osterloh   +4 more
core   +3 more sources

Four primality testing algorithms [PDF]

open access: yes, 2008
In this expository paper we describe four primality tests. The first test is very efficient, but is only capable of proving that a given number is either composite or 'very probably' prime.
Schoof, Rene
core   +2 more sources

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