Results 1 to 10 of about 14,175 (118)

Phase stability of spherical Ferrum nanoparticles under radiation saturation with vacancies

open access: yesЯдерна фізика та енергетика, 2022
A new thermodynamic approach for phase stability of a nanoscale material under irradiation taking into account Gibbs free energy of phase formation and nucleation is proposed.
A. S. Shirinyan   +2 more
doaj   +1 more source

The potential of the modified Thomas - Fermi method and its analytical representation on the example of the interaction of 16O with tin isotopes 112,114,116,118,120,122,124Sn [PDF]

open access: yesЯдерна фізика та енергетика, 2023
Nucleon distribution densities and nucleus-nucleus interaction potentials for the 16O nucleus and 112,114,116,118,120,122,124Sn isotopes were calculated within the framework of the modified Thomas - Fermi method, taking into account all terms to the ...
V. O. Nesterov
doaj   +1 more source

12С(15N,14N)13C reaction mechanisms at energy 81 MeV [PDF]

open access: yesЯдерна фізика та енергетика, 2020
The new experimental data of the 12С(15N,14N)13С reaction cross-sections at the energy Еlab(15N) = 81 MeV were measured for the ground and excited states of 14N and 13C nuclei.
А. Т. Rudchik   +19 more
doaj   +1 more source

Dynamical boson stars

open access: yesLiving Reviews in Relativity, 2017
The idea of stable, localized bundles of energy has strong appeal as a model for particles. In the 1950s, John Wheeler envisioned such bundles as smooth configurations of electromagnetic energy that he called geons, but none were found. Instead, particle-
Steven L. Liebling, Carlos Palenzuela
doaj   +1 more source

Natural radioactivity in soil samples from selected areas in Nineveh governorate, Iraq [PDF]

open access: yesЯдерна фізика та енергетика, 2020
The activity distribution of natural radionuclides 232Th, 226Ra, 40K and 137Cs were determined in soil samples. The samples were collected from four different regions in Nineveh governorate north-west of Iraq (Tall Kayf, Badush, Al-Hamdaniya, Hammam Al ...
Jamal K. Alsaedi   +2 more
doaj   +1 more source

The Hubble Constant

open access: yesLiving Reviews in Relativity, 2015
I review the current state of determinations of the Hubble constant, which gives the length scale of the Universe by relating the expansion velocity of objects to their distance. There are two broad categories of measurements.
Neal Jackson
doaj   +1 more source

Determination of 63Ni activity in NPP construction materials [PDF]

open access: yesЯдерна фізика та енергетика, 2022
The γ-spectra were measured of the structural materials of the 2nd unit of the Chornobyl NPP which were irradiated by bremsstrahlung with end-point energy 37 MeV.
V. О. Zheltonozhskyi   +3 more
doaj   +1 more source

Comparative mathematical analysis of functional properties of mice bone marrow in the phase of recovery of colony-forming units number after sub-lethal and repeated sub-lethal irradiation

open access: yesЯдерна фізика та енергетика, 2020
Basing on the analysis of experimental data, reported in [N.V. Butomo et al. Radiobiologiya 28 (1988) 39], by applying original mathematical model, earlier and more intensive recovery of the number of colony-forming units of mice bone marrow was shown ...
R. V. Boiko   +3 more
doaj   +1 more source

Negative differential resistance and spectral characteristics of original and electron-irradiated (with E = 2 MeV) GaAs1-xPx LEDs [PDF]

open access: yesЯдерна фізика та енергетика
The electrophysical and radiation characteristics of the original and irradiated electrons with E = 2 MeV GaAsP light emitting diodes were studied. The results of measurements of current-current characteristics in the range of 77 - 300 K are given.
T. I. Mosiuk   +5 more
doaj   +1 more source

Pyrolytic graphite as a selective neutron filter [PDF]

open access: yesЯдерна фізика та енергетика, 2006
The transmission of neutrons through pyrolytic graphite (PG) crystals, set at different angles with respect to incident beam, were calculated using an additive formula. A computer program HOPG was developed to provide the required calculation.
M. Adib, N. Habib, B. Fathalla
doaj  

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