Results 1 to 10 of about 11,657 (211)
A multilevel in space and energy solver for multigroup diffusion eigenvalue problems
Nuclear Engineering and Technology, 2017 In this paper, we present a new multilevel in space and energy diffusion (MSED) method for solving multigroup diffusion eigenvalue problems. The MSED method can be described as a PI scheme with three additional features: (1) a grey (one-group) diffusion ...
Ben C. Yee +2 more
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Nuclear Engineering and Technology, 2017 The multigroup transport theory is the basis for many neutronics modules. A significant point of the cross-section (XS) generation procedure is the choice of the energy groups' boundaries in the XS libraries, which must be carefully selected as an ...
Mattia Massone +2 more
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Multigroup Multicast Precoding for Energy Optimization in SWIPT Systems With Heterogeneous Users [PDF]
IEEE Open Journal of the Communications Society, 2020 The key to developing future generations of wireless communication systems lies in the expansion of extant methodologies, which ensures the coexistence of a variety of devices within a system.
Sumit Gautam +7 more
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A new multigroup method for cross-sections that vary rapidly in energy [PDF]
Journal of Quantitative Spectroscopy and Radiative Transfer, 2016 We present a numerical method for solving the time-independent thermal radiative transfer (TRT) equation or the neutron transport (NT) equation when the opacity or cross-section varies rapidly in energy (frequency).
Ahrens, C. +4 more
core +2 more sources
Total and Minimum Energy Efficiency Tradeoff in Robust Multigroup Multicast Satellite Communications
Space: Science & Technology, 2023 Satellite communication is an indispensable part of future wireless communications given its global coverage and long-distance propagation. In satellite communication systems, channel acquisition and energy consumption are two critical issues.
Bin Jiang +9 more
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Brazilian Journal of Radiation Sciences, 2022 In source–detector problems, neutron leakage is a quantity of interest that could lead to improve shielding structures, thus reducing the dose received by humans.
Jesús Pérez Curbelo +1 more
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Brazilian Journal of Radiation Sciences, 2021 Presented here is an extension of the spectral Green’s function-constant nodal (SGF-CN) method for the numerical solution of energy multigroup, fixed-source, discrete ordinates (SN) problems in X, Y-geometry with arbitrary L’th-order of scattering ...
Welton Menezes +2 more
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Multigroup calculations of low-energy neutral transport in tokamak plasmas [PDF]
Nuclear Fusion, 1978 Multigroup discrete ordinates methods avoid many of the approximations that have been used in previous neutral transport analyses. Of particular interest are the neutral profiles generatedas an integral part of larger plasma system simulation codes.
J.G. Gilligan +3 more
openaire +3 more sources
Evidence of Validity of the Productive Organizational Energy Measure in Brazilian Samples [PDF]
Paidéia (Ribeirão Preto), 2022 Productive organizational energy is conceptualized as a shared experience, in which the members of an organization present positive affects, cognitive stimulation and proactive behavior in order to satisfy the organization’s objectives in which they work.
Larissa Maria David Gabardo-Martins
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Science and Technology of Nuclear Installations, 2021 The neutron transport simulations of RBMK-1500 fuel assembly were performed using both multigroup and continuous energy data libraries available within the SCALE code system in order to validate its suitability for the estimation of RBMK neutronic ...
Andrius Slavickas +3 more
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