Results 11 to 20 of about 236,922 (302)

Nucleon mean-free path in the medium

open access: yesEPJ Web of Conferences, 2014
A microscopic determination of the mean-free path of a nucleon in symmetric nuclear matter is presented. Calculations are based on self-consistent Green’s functions theory within the ladder approximation and use dierent realistic nucleon-nucleon ...
Somà V., Rios A.
doaj   +2 more sources

Mean-free-path concept in polycrystalline metals [PDF]

open access: yesPhysical Review B, 1987
A crude analysis of the observed thickness dependence of the conductivity in fine-grained metals shows a very weak connection with the resistivity caused by grain-boundary scattering. An ``effective intrinsic mean free path'' for the whole polycrystal, as introduced in the well-known theory of Mayadas and Shatzkes, cannot explain the observed size ...
Vancea, Johann   +2 more
openaire   +5 more sources

An electrical probe of the phonon mean-free path spectrum. [PDF]

open access: yesSci Rep, 2016
Most studies of the mean-free path accumulation function (MFPAF) rely on optical techniques to probe heat transfer at length scales on the order of the phonon mean-free path.
Ramu AT   +4 more
europepmc   +2 more sources

Measuring Phonon Mean Free Path Distributions by Probing Quasiballistic Phonon Transport in Grating Nanostructures. [PDF]

open access: yesSci Rep, 2015
Heat conduction in semiconductors and dielectrics depends upon their phonon mean free paths that describe the average travelling distance between two consecutive phonon scattering events. Nondiffusive phonon transport is being exploited to extract phonon
Zeng L   +10 more
europepmc   +2 more sources

Probing Ultralate Reionization: Direct Measurements of the Mean Free Path over 5 < z < 6

open access: yesThe Astrophysical Journal, 2023
The mean free path of ionizing photons, λ _mfp , is a critical parameter for modeling the intergalactic medium (IGM) both during and after reionization.
Yongda Zhu   +24 more
doaj   +1 more source

Study of gamma radiation shielding efficiency by 0.5TeO2-(0.5-x)Bi2O3-xWO3 glasses

open access: yesEurasian Journal of Physics and Functional Materials, 2021
This article is devoted to the study of determination of gamma radiation shielding efficiency by new radiation-resistant glasses of the 0.5TeO2-(0.5-x)Bi2O3-xWO3 type.
A. .. Temir   +5 more
doaj   +1 more source

Electron inelastic mean free path in water [PDF]

open access: yesNanoscale, 2020
A nanochannel liquid cell was used to quantify the electron inelastic mean free path ( λ IMFP ) in water. The experimental values show large offsets from the generally accepted models, and can be used to determine the liquid thickness in a liquid cell.
Murat Nulati Yesibolati   +8 more
openaire   +3 more sources

Modeling of Knudsen layer effects in micro/nanoscale gas flows [PDF]

open access: yes, 2011
We propose a power-law based effective mean free path (MFP) model so that the Navier-Stokes-Fourier equations can be employed for the transition-regime flows typical of gas micro/nanodevices.
Reese, Jason M.   +6 more
core   +1 more source

Inelastic mean free path of swift electrons and stopping power in Ta2O5

open access: yesIraqi Journal of Physics, 2018
Energy Loss Function (ELF) of 2 5 Ta O derived from optical limit and extended to the total part of momentum and their energy excitation region ELF plays an important function in calculating energy loss of electron in materials.
Ishraq Ahmed Shakir
doaj   +1 more source

Simulation of Z-Shaped Graphene Geometric Diodes Using Particle-in-Cell Monte Carlo Method in the Quasi-Ballistic Regime

open access: yesNanomaterials, 2021
Geometric diodes are planar conductors patterned asymmetrically to provide electrical asymmetry, and they have exhibited high-frequency rectification in infrared rectennas.
John Stearns, Garret Moddel
doaj   +1 more source

Home - About - Disclaimer - Privacy