505 research outputs found
On fuzzy weakly-closed sets
A new class of fuzzy closed sets, namely fuzzy weakly closed set in a fuzzy
topological space is introduced and it is established that this class of fuzzy
closed sets lies between fuzzy closed sets and fuzzy generalized closed sets.
Alongwith the study of fundamental results of such closed sets, we define and
characterize fuzzy weakly compact space and fuzzy weakly closed space
Semiopen and semiclosed sets in fuzzy soft topological spaces
Abstract. In this paper, we introduce semiopen and semiclosed fuzzy soft sets in fuzzy soft topological spaces. Various properties of these sets are studied alongwith some characterizations. Further, we generalize the structures like interior and closure via semiopen and semiclosed fuzzy soft sets and study their various properties. 2010 AMS Classification: 54A40
Analysis of the Problems Occurred Due to Partial Shading of Solar Photovoltaic Array and Probable Solutions
A solar panel is made up of solar cells where semiconductors made to react and give us a potential difference when solar energy falls on it. However, due to the internal and external interferences, many problems are faced by solar panels, like dust, partial shading by leaves or mud, etc. This paper aims at trying to find out the best possible solution for the partial shading problems when solar energy is harvested using a solar panel. The Series-Parallel configuration (SP) and the Total-Cross Tied configuration (TCT) connections of PV module have been analyzed using MATLAB
Radion effects on the production of an intermediate-mass scalar and Z at LEP II
We have studied the process, where
is the Higgs and/or radion bosons. The implications of the radion effects on
the preliminary ALEPH data are also discussed. The case of the lighter radion
than Higgs boson is disfavored by the ALEPH analyses of the tagged four-jet
data, since the radion predominantly decays into two gluon jets due to the QCD
trace anomaly. If the radion is highly degenerate in mass with the Higgs, the
cross section can be increased more than at one sigma level, with natural scale
of the vacuum expectation value of the radion.Comment: 10 pages, 1 Postscript figure, final version to appear in PR
Radion effects on unitarity in gauge-boson scattering
The scalar field associated with fluctuations in the positions of the two
branes, the ``radion'', plays an important role determining the cosmology and
collider phenomenology of the Randall-Sundrum solution to the hierarchy
problem. It is now well known that the radion mass is of order the weak scale,
and that its couplings to standard model fields are order 1/TeV to the trace of
the energy momentum tensor. We calculate longitudinal vector boson scattering
amplitudes to explore the constraints on the radion mass and its coupling from
perturbative unitarity. The scattering cross section can indeed become
non-perturbative at energies prior to reaching the TeV brane cutoff scale, but
only when some curvature-Higgs mixing on the TeV brane is present. We show that
the coefficient of the curvature-Higgs mixing operator must be less than about
3 for the 4-d effective theory to respect perturbative unitarity up to the TeV
brane cutoff scale. Mass bounds on the Higgs boson and the radion are also
discussed.Comment: 17 pages, LaTeX, 5 eps figures, uses epsf.sty and axodraw.st
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