2,256 research outputs found
Scaling dependence on time and distance in nonlinear fractional diffusion equations and possible applications to the water transport in soils
Recently, fractional derivatives have been employed to analyze various
systems in engineering, physics, finance and hidrology. For instance, they have
been used to investigate anomalous diffusion processes which are present in
different physical systems like: amorphous semicondutors, polymers, composite
heterogeneous films and porous media. They have also been used to calculate the
heat load intensity change in blast furnace walls, to solve problems of control
theory \ and dynamic problems of linear and nonlinear hereditary mechanics of
solids. In this work, we investigate the scaling properties related to the
nonlinear fractional diffusion equations and indicate the possibilities to the
applications of these equations to simulate the water transport in unsaturated
soils. Usually, the water transport in soils with anomalous diffusion, the
dependence of concentration on time and distance may be expressed in term of a
single variable given by In particular, for the
systems obey Fick's law and Richards' equation for water transport. We show
that a generalization of Richards' equation via fractional approach can
incorporate the above property.Comment: 9 page
Production of J/-Particles at RHIC and LHC energies: An Alternative `Psi'-chology
We attempt here to understand successfully some crucial aspects of
-production in some high energy nuclear collisions in the light of a
non-standard framework outlined in the text. It is found that the results
arrived at with this main working approach here is fairly in good agreement
with both the measured data and the results obtained on the basis of some other
models of the `standard' variety. Impact and implications of this comparative
study have also been precisely highlighted in the end.Comment: 14 pages, 7 figures, to appear in Open Journal of Microphysics. arXiv
admin note: substantial text overlap with arXiv:0906.2612, arXiv:1110.5582,
and overlap with arXiv:1103.6269, arXiv:1007.451
Search for Higgs Bosons Decay Using Vector Boson Fusion
The sensitivity of the ATLAS experiment to low mass SM Higgs produced via
Vector Boson Fusion mechanism with is invest igated. A cut
based event selection has been chosen to optimize the expected signal
significance with this decay mode. A signal significance of 2. 2 may
be achieved for M_H=130 \gev with 30 fb of accumulated luminosity
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