Results 11 to 20 of about 5,534,464 (313)

A combined experimental and modeling study to evaluate pH-dependent sorption of polar and non-polar compounds to polyethylene and polystyrene microplastics

open access: yesEnvironmental Sciences Europe, 2018
Background The contamination of aquatic ecosystems with both anthropogenic pollutants and particles in particular (microscopic) plastic debris items is of emerging concern.
Sven Seidensticker   +3 more
doaj   +1 more source

Influence of Electronic Non-Equilibrium on Energy Distribution and Dissipation in Aluminum Studied with an Extended Two-Temperature Model

open access: yesNanomaterials, 2022
When an ultrashort laser pulse excites a metal surface, only a few of all the free electrons absorb a photon. The resulting non-equilibrium electron energy distribution thermalizes quickly to a hot Fermi distribution.
Markus Uehlein   +2 more
doaj   +1 more source

Equilibrium Price Distributions [PDF]

open access: yesThe Review of Economic Studies, 1985
Equilibrium price distributions (for a homogeneous product) consistent with individual incentives are investigated. They arise in informationally imperfect markets in which the only primitive datum is the distribution of search costs. It is shown that single, multi- and continuous price distributions are all viable long-run phenomena depending on the ...
openaire   +2 more sources

Non-equilibrium effects in a relativistic plasma sheath model

open access: yesNew Journal of Physics, 2020
Plasma sheaths characterized by electrons with relativistic energies and far from thermodynamic equilibrium are governed by a rich and largely unexplored physics.
A Formenti, A Maffini, M Passoni
doaj   +1 more source

Exact Distribution of Linkage Disequilibrium in the Presence of Mutation, Selection, or Minor Allele Frequency Filtering

open access: yesFrontiers in Genetics, 2020
Linkage disequilibrium (LD), often expressed in terms of the squared correlation (r2) between allelic values at two loci, is an important concept in many branches of genetics and genomics.
Jiayi Qu   +4 more
doaj   +1 more source

Super-diffusion and crossover from diffusive to anomalous transport in a one-dimensional system

open access: yesSciPost Physics, 2023
We study transport in a one-dimensional lattice system with two conserved quantities - "volume" and energy. Considering a slowly evolving local equilibrium state that is slightly deviated from an underlying global equilibrium, we estimate the correction ...
Anupam Kundu
doaj   +1 more source

Equilibrium charge distribution on annealed polyelectrolytes [PDF]

open access: yesThe European Physical Journal E, 2002
Monte Carlo simulations are used to study the non-uniform equilibrium charge distribution along a single annealed polyelectrolyte chain under theta-solvent conditions and with added salt. Within a range of the order of the Debye length charge accumulates at chain ends while a slight charge depletion appears in the central part of the chain.
Zito, T., Seidel, C.
openaire   +4 more sources

Research on Carbon Distribution in Natural Scenic Area

open access: yesChemical Engineering Transactions, 2016
By calculating carbon sink of vegetation in a natural scenic area and tourist carbon footprint, carbon distribution load rate, carbon distribution equilibrium degree and carbon distribution order degree were introduced to study the carbon distribution ...
Q.Y. Chen, L. Chen, M.Z. Jin
doaj   +1 more source

Generalized Harris Sheet Equilibrium in Regularized Kappa Distributed Plasmas

open access: yesThe Astrophysical Journal, 2023
Harris sheet models with antiparallel magnetic field are the equilibrium solutions to the steady Vlasov–Maxwell equations, which have been widely adopted for the study of plasma instabilities and magnetic reconnection in thin current sheets. The original
L.-N. Hau, C.-K. Chang, M. Lazar
doaj   +1 more source

Wavelength dependent equilibrium mode distribution and steady-state distribution in double-clad W-type microstructured polymer optical fibers

open access: yesResults in Physics, 2022
This paper investigates wavelength dependence of equilibrium mode distribution and steady-state distribution in W-type (double-clad) microstructured polymer optical fibers (mPOFs) with a solid core for parametrically varied refractive index and width of ...
Branko Drljača   +7 more
doaj   +1 more source

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