Results 11 to 20 of about 25,910 (172)
Ultrathin, Stretchable, and 3D-Printable Complementary Nanotubes-Polymer Composites for Multimodal Radiation Shielding in Extreme Environments. [PDF]
Adv MaterA 3D‐printable dual‐mode radiation shielding material is introduced by combining boron nitride nanotubes and single‐walled carbon nanotubes in a stretchable PDMS matrix. The complementary nanotube network enables simultaneous attenuation of electromagnetic interference and neutron radiation while maintaining lightweight, mechanical resilience, and ...
Flandy +12 more
europepmc +2 more sources
Results in Physics, 2019 The solution of neutron diffusion equation is important to describe the behavior of the neutrons in the nuclear reactors. The essential cylindrical reactor geometry will be studied in this work, where the reactor reflector part is added to the core part ...
Mohammed Shqair
doaj +1 more source
Variational characterizations of the effective multiplication factor of a nuclear reactor core [PDF]
, 2008 We derive some new inf-sup and sup-inf formulae for the so-called effective multiplication factor arising in the study of reactor analysis.
Lods, Bertrand
core +4 more sources
Results in Physics, 2019 The Homotopy Perturbation Method (HPM) proves continuous efficiency for a long time in solving linear and nonlinear mathematical differential equations and their applications in physical and engineering phenomena.
Mohammed Shqair
doaj +1 more source
, 2021 There seems to exist significant similarities between a reactor system and a supply chain from collection to delivery. In the reactor case, neutrons are continuously produced and absorbed in nuclear fuel. In a supply system case, items are continuously collected and continuously delivered to destinations.
openaire +2 more sources
Science and Technology of Nuclear Installations, 2020 For nuclear reactor physics, uncertainties in the multigroup cross sections inevitably exist, and these uncertainties are considered as the most significant uncertainty source. Based on the home-developed 3D high-fidelity neutron transport code HNET, the
Ji Ma, Chen Hao, Lixun Liu, Yuekai Zhou
doaj +1 more source
Goal-based h-adaptivity of the 1-D diamond difference discrete ordinate method. [PDF]
, 2017 The quantity of interest (QoI) associated with a solution of a partial differential equation (PDE) is not, in general, the solution itself, but a functional of the solution.
Eaton, MD +5 more
core +2 more sources
Pin-by-pin Calculation of Reactor Core-Based on Quasi-diffusion in Rectangular Grid
Yuanzineng kexue jishu, 2023 Physical calculations of reactor cores are fundamental for reactor core design and nuclear safety analysis. The second generation of core calculation theory and methods based on advanced component homogenization theory and modern coarse grid block ...
YAN Jiangtao;LIU Kun;ZHUANG Kun;WANG Senshan;ZHANG Kaihui;ZHANG Xinxin
doaj
Parareal in time 3D numerical solver for the LWR Benchmark neutron diffusion transient model [PDF]
, 2014 We present a parareal in time algorithm for the simulation of neutron diffusion transient model. The method is made efficient by means of a coarse solver defined with large time steps and steady control rods model.
Baudron, Anne-Marie A. -M. +4 more
core +5 more sources
Neutron-induced dpa, transmutations, gas production, and helium embrittlement of fusion materials
, 2013 In a fusion reactor materials will be subjected to significant fluxes of high-energy neutrons. As well as causing radiation damage, the neutrons also initiate nuclear reactions leading to changes in the chemical composition of materials (transmutation ...
Dudarev, S. L. +5 more
core +1 more source