Results 51 to 60 of about 4,345,907 (196)
Macroscopic description of particle systems with non-local density-dependent diffusivity [PDF]
, 2006 In this paper we study macroscopic density equations in which the diffusion coefficient depends on a weighted spatial average of the density itself. We show that large differences (not present in the local density-dependence case) appear between the ...
A. Okubo +6 more
core +2 more sources
Beyond average population density: Measuring sprawl with density-allocation indicators
Land Use Policy, 2022 Abstract Average population density has been a traditional urban sprawl indicator, but it is insufficient to encapsulate its detrimental impacts. We demonstrate that cities of identical average population density may be subject to very different levels of car dependency, CO2 emissions and public budget deficits.
Ioannis Tikoudis +3 more
openaire +1 more source
Foam concrete of certain average density for thermal insulation of attic floors (rus) [PDF]
Инженерно-строительный журнал, 2011 Energy efficiency of building depends on several factors, including the summary heat losses through the building envelope – walls, windows, attic and basement floors.
Тrеmbitskiy М.А., Ivanov A.N.
doaj
Distribution of roots of random real generalized polynomials
, 1996 The average density of zeros for monic generalized polynomials, $P_n(z)=\phi(z)+\sum_{k=1}^nc_kf_k(z)$, with real holomorphic $\phi ,f_k$ and real Gaussian coefficients is expressed in terms of correlation functions of the values of the polynomial and ...
A. Bharucha-Reid +22 more
core +1 more source
Tails of Localized Density of States of Two-dimensional Dirac Fermions [PDF]
, 1998 The density of states of Dirac fermions with a random mass on a two-dimensional lattice is considered. We give the explicit asymptotic form of the single-electron density of states as a function of both energy and (average) Dirac mass, in the regime ...
Jug, Giancarlo +2 more
core +7 more sources
Long-range correlations and ensemble inequivalence in a generalized ABC model
, 2010 A generalization of the ABC model, a one-dimensional model of a driven system of three particle species with local dynamics, is introduced, in which the model evolves under either (i) density-conserving or (ii) nonconserving dynamics.
A. Lederhendler +3 more
core +1 more source
Average density of states for Hermitian Wigner matrices
Advances in Mathematics, 2011 We consider ensembles of $N \times N$ Hermitian Wigner matrices, whose entries are (up to the symmetry constraints) independent and identically distributed random variables. Assuming sufficient regularity for the probability density function of the entries, we show that the expectation of the density of states on {\it arbitrarily} small intervals ...
Maltsev, Anna V, Schlein, Benjamin
openaire +4 more sources
The matter fluctuation effect to T violation at a neutrino factory [PDF]
, 2001 We derived an analytic formula for T violation by using the perturbation theory for small quantities, $\Delta m_{21}^2L/2E$ and $\delta a(x)L/2E$, where $\delta a(x)$ represents symmetric and asymmetric matter fluctuations, i.e., deviations from the ...
Miura, Takahiro +3 more
core +2 more sources
The Astrophysical Journal, 1987 The Einstein-Straus (1945) vacuole is here used to represent a bound cluster of galaxies embedded in a standard pressure-free cosmological model, and the average density of the cluster is compared with the density of the surrounding cosmic fluid. The two are nearly but not quite equal, and the more condensed the cluster, the greater the difference.
openaire +1 more source
Applied Sciences, 2020 This paper provides a complete overview of the applicability of the Equivalent Material Concept in conjunction with the Average Strain Energy Density criterion, to provide predictions of fracture loads in structural materials containing U-notches.
Sergio Cicero +2 more
doaj +1 more source