Results 71 to 80 of about 239,904 (190)

Experimental Modeling of Cosmological Inflation with Metamaterials

open access: yes, 2012
Recently we demonstrated that mapping of monochromatic extraordinary light distribution in a hyperbolic metamaterial along some spatial direction may model the flow of time and create an experimental toy model of the big bang.
Agranovich   +21 more
core   +1 more source

New Statistical Residuals for Regression Models in the Exponential Family: Characterization, Simulation, Computation, and Applications

open access: yesMathematics
Residuals are essential in regression analysis for evaluating model adequacy, validating assumptions, and detecting outliers or influential data. While traditional residuals perform well in linear regression, they face limitations in exponential family ...
Raydonal Ospina   +5 more
doaj   +1 more source

Dispersive Optical Potential Study for Proton-Nucleus Scattering Using Dispersion Relations [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة
: Usually in nucleon-nucleon reactions, optical potential is used to study the nuclear structures resulting from these reactions. As this potential during the reaction is subject to dispersion by the nuclei surface as well as the total size of the ...
marow soad, Akram Ali
doaj   +1 more source

Exponential profiles from stellar scattering off interstellar clumps and holes in dwarf galaxy discs

open access: yes, 2017
Holes and clumps in the interstellar gas of dwarf irregular galaxies are gravitational scattering centers that heat field stars and change their radial and vertical distributions.
Elmegreen, Bruce G., Struck, Curtis
core   +1 more source

An Exponential Dispersion Model for the Distribution of Human Single Nucleotide Polymorphisms [PDF]

open access: yesMolecular Biology and Evolution, 2003
An analysis of 1.42 million human single nucleotide polymorphisms (SNPs), mapped by the International SNP Map Working Group, revealed an apparent power function relationship between the estimated variance and mean number of SNPs per sample bin. This relationship could be explained by the assumption that a scale invariant Poisson gamma (PG) exponential ...
openaire   +2 more sources

Joint modelling accelerated life tests and field data for reliability prediction

open access: yesStatistical Theory and Related Fields
Products often operate in dynamic environments, and field failure data is frequently heavily censored, posing significant challenges in the assessment of product reliability.
Ancha Xu   +4 more
doaj   +1 more source

Angular momentum transport and evolution of lopsided galaxies

open access: yes, 2014
The surface brightness distribution in the majority of stellar galactic discs falls off exponentially. Often what lies beyond such a stellar disc is the neutral hydrogen gas whose distribution also follows a nearly exponential profile at least for a ...
Jog, Chanda J., Saha, Kanak
core   +1 more source

Damping signatures at JUNO, a medium-baseline reactor neutrino oscillation experiment

open access: yesJournal of High Energy Physics, 2022
We study damping signatures at the Jiangmen Underground Neutrino Observatory (JUNO), a medium-baseline reactor neutrino oscillation experiment. These damping signatures are motivated by various new physics models, including quantum decoherence, ν 3 decay,
The JUNO collaboration   +606 more
doaj   +1 more source

Constraint on the velocity dependent dark matter annihilation cross section from gamma-ray and kinematic observations of ultrafaint dwarf galaxies

open access: yes, 2018
Searching for gamma rays from dwarf spheroidal galaxies (dSphs) is a promising approach to detect dark matter (DM) due to the high DM densities and low baryon components in dSphs.
Bi, Xiao-Jun   +3 more
core   +1 more source

Radial Profiles of Star Formation in the Far Outer Regions of Galaxy Disks

open access: yes, 2005
Star formation in galaxies is triggered by a combination of processes, including gravitational instabilities, spiral wave shocks, stellar compression, and turbulence compression.
Barteldrees A.   +17 more
core   +2 more sources

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