11,091 research outputs found
Exploring the Superimposed Oscillations Parameter Space
The space of parameters characterizing an inflationary primordial power
spectrum with small superimposed oscillations is explored using Monte Carlo
methods. The most interesting region corresponding to high frequency
oscillations is included in the analysis. The oscillations originate from some
new physics taking place at the beginning of the inflationary phase and
characterized by the new energy scale Mc. It is found that the standard
slow-roll model remains the most probable one given the first year WMAP data.
At the same time, the oscillatory models better fit the data on average, which
is consistent with previous works on the subject. This is typical of a
situation where volume effects in the parameter space play a significant role.
Then, we find the amplitude of the oscillations to be less than 22% of the mean
amplitude and the new scale Mc to be such that H/Mc < 6.6 x 10^(-4) at 1-sigma
level, where H is the scale of inflation.Comment: 13 pages, 4 figures, uses iopart, matches published versio
Experimental study on the stability of a natural circulation driven super-critical water cooled reactor
Sensitivity analysis of numerically determined linear stability boundaries of a supercritical heated channel
Investigation of the thermal boundary layer development length in supercritical water flows in an annulus at laminar flow conditions
General combination rules for qualitative and quantitative beliefs
Martin and Osswald \cite{Martin07} have recently proposed many
generalizations of combination rules on quantitative beliefs in order to manage
the conflict and to consider the specificity of the responses of the experts.
Since the experts express themselves usually in natural language with
linguistic labels, Smarandache and Dezert \cite{Li07} have introduced a
mathematical framework for dealing directly also with qualitative beliefs. In
this paper we recall some element of our previous works and propose the new
combination rules, developed for the fusion of both qualitative or quantitative
beliefs
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