The surface phonon-polariton heat capacity of polar nanofilms is analytically determined and analyzed as a function their thickness temperature. It shown that the polariton increases with square nanofilm thickness, such for thin enough at sufficient low temperature $T$, its value becomes independent material properties given by $C=1.15{\ensuremath{\epsilon}}_{0}{k}_{B}{({k}_{B}T/\ensuremath{\hb...

We investigate the solvent-accessible area method by means of Metropolis simulations of the brain peptide Met-Enkephalin at 300 K. For the energy function ECEPP/2 nine atomic solvation parameter (ASP) sets are studied. The simulations are compared with one another, with simulations with a distance dependent electrostatic permittivity epsilon(r), and with vacuum simulations (epsilon=2). Parallel...

ABSTRACT The ultra-relativistic outflows powering gamma-ray bursts (GRBs) acquire angular structure through their interaction with external material. They are often characterized by a compact, nearly uniform narrow core (with half-opening angle θc,{ϵ, Γ}) surrounded material energy per unit solid ($\epsilon =\epsilon _{\rm c}\Theta _{\epsilon }^{-a}$, where $\Theta _{\lbrace \epsilon ,\Gamma \r...

Given an n-vertex m-edge graph G of clique-width at most k, and a corresponding k-expression, we present algorithms for computing some well-known centrality indices (eccentricity closeness) that run in $${\mathcal {O}}(2^{{\mathcal {O}}(k)}(n+m)^{1+\epsilon })$$ time any $$\epsilon > 0$$ . Doing so, can solve various distance problems within the same amount time, including: diameter, center, Wi...

Many synthetic quantum systems allow particles to have dispersion relations that are neither linear nor quadratic functions. Here, we explore single-particle scattering in general spatial dimension $D\ensuremath{\ge}1$ when the density of states diverges at a specific energy. To illustrate underlying principles an experimentally relevant setting, focus on waveguide electrodynamics (QED) problem...

The ink of sea hares (Aplysia californica) contains escapin, an L-amino acid oxidase that metabolizes L-lysine, thereby producing a mixture that kills microbes and deters attacking predators. This secretion contains H2O2,ammonia, and an equilibrium mixture of "escapin intermediate product" (EIP-K) that includes alpha-keto-epsilon-aminocaproic acid and several other molecules. Components of the ...

In this paper, the wear resistance and antifriction of epsilon phase layer and diffusion layer of gas nitrided D2 steel and M2 steel have been studied. The changes m wear mechanism of epsilon phase under the load from 20N to 200N are analysed. When the load is lighter than 100N, it is mainly oxidizing wear on friction surface. The adhesion, peeling off and abrasive wear appear on friction surfa...

Angular resolved photoemission spectra of 5d core levels from Bi111 exhibit a component which is split off in energy by approximately 200 meV. The energy as well as the spectral width and relative intensity of the split off structure are strongly modulated by the final state electron momentum k(perpendicular) and k||, resembling the periodicity of the surface and bulk Brillouin zone. The data c...

The aim of this work is to specify which model of turbulence is the most adapted in order to predict the drag forces that a swimmer encounters during his movement in the fluid environment. For this, a Computational Fluid Dynamics (CFD) analysis has been undertaken with a commercial CFD code (Fluent). The problem was modelled as 3D and in steady hydrodynamic state. The 3D geometry of the swimmer...

Suppose $G$ is a finite group and $A\\subseteq G$ such that ${gA:g\\in G}$ has VC-dimension strictly less than $k$. We find algebraically well-structured sets in which, up to chosen $\\epsilon>0$, describe the structure of $A$ behave regularly with respect translates $A$. For subclass groups uniformly fixed exponent $r$, these algebraic objects are normal subgroups index bounded terms $k$, $\\e...