Results 21 to 30 of about 130,744 (269)

Using software based on the Monte-Carlo method for receiving the few-group homogenized macroscopic interaction cross-section

Trudy Odesskogo Politehničeskogo Universiteta, 2017
The constant preparation issues are important for performing the few-group analysis for different states of the reactor core. Besides, the constant preparation method influences the further calculations accuracy and quality.
Galchenko V. V. Abdulaev А. М. Shlapak І. І., Galchenko V. V. Abdulaev А. М. Shlapak І. І., Galchenko V. V. Abdulaev А. М. Shlapak І. І.   +2 more
doaj   +1 more source

Superfluid 4He dynamics beyond quasiparticle excitations [PDF]

, 2016
The dynamics of superfluid 4He at and above the Landau quasiparticle regime is investigated by high precision inelastic neutron scattering measurements of the dynamic structure factor.
Beauvois, K., Campbell, C. E., Dawidowski, J., Fåk, B., Godfrin, H., Krotscheck, E., Lauter, H. -J., Lichtenegger, T., Ollivier, J., Sultan, A.   +9 more
core   +4 more sources

Calculation of the nucleon axial charge in lattice QCD [PDF]

, 2006
Protons and neutrons have a rich structure in terms of their constituents, the quarks and gluons. Understanding this structure requires solving Quantum Chromodynamics (QCD). However QCD is extremely complicated, so we must numerically solve the equations
Edwards, R. G., Fleming, G., Hagler, Ph., Negele, J. W., Orginos, K., Pochinsky, A. V., Renner, D. B., Richards, D. G., Schroers, W.   +8 more
core   +3 more sources

Numerical Calculation Scheme of Neutronics-Thermal-Mechanical Coupling in Solid State Reactor Core Based on Galerkin Finite Element Method

Energies, 2023
It is of practical significance to study the multi-physical processes of solid state nuclear systems for device design, safety analysis, and operation guidance. This system generally includes three multi-physical processes: neutronics, heat transfer, and
Baoxin Yuan, Jie Zheng, Jian Wang, Herong Zeng, Wankui Yang, Huan Huang, Songbao Zhang   +6 more
doaj   +1 more source

Exact Solution of the Isovector Proton Neutron Pairing Hamiltonian [PDF]

, 2006
The complete exact solution of the T=1 neutron-proton pairing Hamiltonian is presented in the context of the SO(5) Richardson-Gaudin model with non-degenerate single-particle levels and including isospin-symmetry breaking terms.
A. G. Ushveridize, B. Errea, B. H. Flowers, J. Dukelsky, J. P. Elliott, J. P. Elliott, P. Ring, P. Van Isacker, S. Dimitrova, S. Lerma H., V. G. Gueorguiev   +10 more
core   +4 more sources

Neutron matter at low density and the unitary limit [PDF]

, 2007
Neutron matter at low density is studied within the hole-line expansion. Calculations are performed in the range of Fermi momentum $k_F$ between 0.4 and 0.8 fm$^{-1}$.
C. Maieron, M. Baldo, M. Baldo, S. L. Shapiro   +3 more
core   +2 more sources

Review of nuclear data improvement needs for nuclear radiation measurement techniques used at the CEA experimental reactor facilities

EPJ Web of Conferences, 2016
The constant improvement of the neutron and gamma calculation codes used in experimental nuclear reactors goes hand in hand with that of the associated nuclear data libraries.
Destouches Christophe
doaj   +1 more source

Flux Density Distribution Measurement in Annular Fuel Reactor

Yuanzineng kexue jishu, 2022
The relative neutron flux density distribution is one of the essential physical parameters of the reactor. Measuring the relative neutron flux density distribution of the annular fuel zero-power reactor core has guiding significance for understanding the
ZHANG Geng;LIU Feng;XIA Zhaodong;ZHU Qingfu;ZHANG Zhifeng
doaj  

Reservoir space characterization of vuggy carbonate reservoirs with multiple scales: a case study of Ma 5-7 interval, Middle Ordovician Majiagou Formation, Daniudi area, Ordos Basin

Shiyou shiyan dizhi, 2021
The reservoir space of carbonate rocks is of multiple scales and genesis mechanisms, and it is difficult to accurately demonstrate the reservoir space as well as physical properties.Millimeter-, micro- and nano-scale reservoir spaces were all developed ...
Xiaoqi DING, Xin LIU, Zhuangzhuang QI, Wei ZHANG, Sihong LIU   +4 more
doaj   +1 more source

Electric polarizability of neutral hadrons from dynamical lattice QCD ensembles

, 2014
We present a valence calculation of the electric polarizability of the neutron, neutral pion, and neutral kaon on two dynamically generated nHYP-clover ensembles.
Alexandru, Andrei, Freeman, Walter, Lee, Frank, Lujan, Michael   +3 more
core   +1 more source