Results 21 to 30 of about 25,076 (257)

Condições de equilíbrio termodinâmico: a função disponibilidade

open access: yesQuímica Nova, 2011
The thermodynamic equilibrium is a state defined by conditions which depend upon some characteristics of the system. It requires thermal, mechanical, chemical and phase equilibrium.
Alessandro Ranulfo Lima Nery   +1 more
doaj   +1 more source

Fractons in curved space

open access: yesSciPost Physics, 2022
We consistently couple simple continuum field theories with fracton excitations to curved spacetime backgrounds. We consider homogeneous and isotropic fracton field theories, with a conserved $U(1)$ charge and dipole moment.
Akash Jain, Kristan Jensen
doaj   +1 more source

Radio Continuum Spectra of Planetary Nebulae

open access: yesGalaxies, 2018
Radio continuum emission of planetary nebulae is a rich source of information about their structure and physical parameters. Although radio emission is well studied, planetary nebulae show higher spectral indices than expected for homogeneous sphere.
Marcin Hajduk   +6 more
doaj   +1 more source

COLOR AND TEXTURE INTERPOLATION BETWEEN ORTHOIMAGERY AND VECTOR DATA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Graphic interfaces of geoportals allow visualizing, sometimes overlaying often by image blending, various data and representations of geographical spaces: vector data, maps, aerial imagery, Digital Terrain Model (DTM), etc.
C. Hoarau, S. Christophe
doaj   +1 more source

Canonical quantization of electromagnetism in spatially dispersive media

open access: yesNew Journal of Physics, 2014
We find the action that describes the electromagnetic field in a spatially dispersive, homogeneous medium. This theory is quantized and the Hamiltonian is diagonalized in terms of a continuum of normal modes. It is found that the introduction of nonlocal
S A R Horsley, T G Philbin
doaj   +1 more source

Sorting the modes contributing to guidance in strain-induced graphene waveguides

open access: yesNew Journal of Physics, 2013
We propose a simple way of probing the number of modes contributing to the channeling in graphene waveguides which are formed by a gauge potential produced by mechanical strain.
Cesar E P Villegas   +3 more
doaj   +1 more source

A continuum $X$ such that $C(X)$ is not continuously homogeneous [PDF]

open access: yesCommentationes Mathematicae Universitatis Carolinae, 2016
A continuum \(X\) is said to be \textit{continuously homogeneous} if for any two points \(p,q \in X\) there exists a surjective mapping \(f:X \rightarrow X\) such that \(f(p)=q\). For a given metric continuum \(X\) the symbols \(2^{X}\) and \(C(X)\) denote the hyperspace of nonempty closed subsets of \(X\) and the hyperspace of nonempty subcontinua of \
openaire   +2 more sources

Numerical homogenization of the acoustic wave equations with a continuum of scales [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2008
27 pages, 4 figures ...
Owhadi, Houman, Zhang, Lei
openaire   +4 more sources

Solving the problem of two viscous incompressible fluid media in the case of constant phase saturations

open access: yesOpen Engineering, 2016
The solution to equations of two viscous homogeneous incompressible fluid media with the pressure phase equilibrium in the case of a constant phase is obtained. The influence of the physical phase densities, saturation, volume and viscosity of substances
Baishemirov Zharasbek   +3 more
doaj   +1 more source

Mechanical characterization of P2 bacteriophage by using Young’s modulus measurements

open access: yesAIP Advances, 2021
The bacteriophage P2 capsids have been characterized by transmission electron microscopy and atomic force microscopy (AFM). Studies have been carried out on fully filled and 2/3 filled capsids containing dsDNA genomes.
Seong Soo Choi, Kyoung Jin Kim
doaj   +1 more source

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