329 research outputs found
Multi-parameter generalization of nonextensive statistical mechanics
We show that the stochastic interpretation of Tsallis' thermostatistics given
recently by Beck [Phys. Rev. Lett {\bf 87}, 180601 (2001)] leads naturally to a
multi-parameter generalization. The resulting class of distributions is able to
fit experimental results which cannot be reproduced within the Boltzmann's or
Tsallis' formalism.Comment: ReVTex 4.0, 4 eps figure
Nanostructure Changes of Magnetron Copper Films with a Glass Ceramic Substrate
The present paper deals with the results of comprehensive research of heated in the air magnetron
copper films by atomic-force and scanning electron microscopy, Raman scattering, IR-Fourier and X-Ray
phase analysis, and spectral ellipsometry. According to the results of nano techniques, the relationship
between amplitude and phase-frequency components of ellipsometric measurements and phase structure
transformations has been established. The structural transition in the vicinity of 573 K, has been found
Restriction of Helmholtz Model
The results of the experimental studies of physical mechanisms of energy dissipation in the oscillating
system in which air cavity held by the forces of magnetic levitation is used as the elastic element, and
magnetic fluid prepared on the basis of dispersing media with different viscosity level is used as the iner-tial element are considered in the article. Based on the obtained results the conclusion on the restriction of
the applicability of Helmholtz equation, caused by boundary effects is made.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3640
Self-assembly and Self-organization Processes of Carbon Nanotubes in the Colloidal Systems
The features and patterns of self-organization processes in the diffusion-limited conditions (method of
drops) of carbon-containing compounds and carbon nanotubes have been studied. The results of the research
influence of the substrate temperature and solvent on the formation of nanoscale fractal structures
in sediments of colloidal solutions are provided
Self-assembly and Self-organization Processes of Carbon Nanotubes in the Colloidal Systems
The features and patterns of self-organization processes in the diffusion-limited conditions (method of
drops) of carbon-containing compounds and carbon nanotubes have been studied. The results of the research
influence of the substrate temperature and solvent on the formation of nanoscale fractal structures
in sediments of colloidal solutions are provided
Nanostructure Changes of Magnetron Copper Films with a Glass Ceramic Substrate
The present paper deals with the results of comprehensive research of heated in the air magnetron
copper films by atomic-force and scanning electron microscopy, Raman scattering, IR-Fourier and X-Ray
phase analysis, and spectral ellipsometry. According to the results of nano techniques, the relationship
between amplitude and phase-frequency components of ellipsometric measurements and phase structure
transformations has been established. The structural transition in the vicinity of 573 K, has been found
Use of the Generalized Gradient Approximation in Pseudopotential Calculations of Solids
We present a study of the equilibrium properties of -bonded solids within
the pseudopotential approach, employing recently proposed generalized gradient
approximation (GGA) exchange correlation functionals. We analyze the effects of
the gradient corrections on the behavior of the pseudopotentials and discuss
possible approaches for constructing pseudopotentials self-consistently in the
context of gradient corrected functionals. The calculated equilibrium
properties of solids using the GGA functionals are compared to the ones
obtained through the local density approximation (LDA) and to experimental
data. A significant improvement over the LDA results is achieved with the use
of the GGA functionals for cohesive energies. For the lattice constant, the
same accuracy as in LDA can be obtained when the nonlinear coupling between
core and valence electrons introduced by the exchange correlation functionals
is properly taken into account. However, GGA functionals give bulk moduli that
are too small compared to experiment.Comment: 15 pages, latex, no figure
Uniqueness of positive solutions for the singular fractional differential equations involving integral boundary value conditions
© 2018, The Author(s). This paper is concerned with the uniqueness of positive solutions for a class of singular fractional differential equations with integral boundary conditions. The nonlinear term and boundary conditions of fractional differential equation contain the fractional order derivatives. The uniqueness of positive solutions is derived by the fixed point theorem of mixed monotone operator. An example is given to demonstrate the validity of our main results
Search for sterile neutrino oscillation using RENO and NEOS data
We present a reactor model independent search for sterile neutrino
oscillation using 2\,509\,days of RENO near detector data and 180 days of NEOS
data. The reactor related systematic uncertainties are significantly suppressed
as both detectors are located at the same reactor complex of Hanbit Nuclear
Power Plant. The search is performed by electron
antineutrino\,() disappearance between six reactors and two
detectors with baselines of 294\,m\,(RENO) and 24\,m\,(NEOS). A spectral
comparison of the NEOS prompt-energy spectrum with a no-oscillation prediction
from the RENO measurement can explore reactor oscillations
to sterile neutrino. Based on the comparison, we obtain a 95\% C.L. excluded
region of \,eV. We also obtain a 68\% C.L. allowed
region with the best fit of \,eV and
=0.080.03 with a p-value of 8.2\%. Comparisons of
obtained reactor antineutrino spectra at reactor sources are made among RENO,
NEOS, and Daya Bay to find a possible spectral variation.Comment: 6 pages, 5 figures: This manuscript has been significantly revised by
the joint reanalysis by RENO and NEOS Collaborations. (In the previous
edition, the RENO collaboration used publicly available NEOS data to evaluate
the expected neutrino spectrum at NEOS.
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