Finite Element Based Multi-dimension and Multi-physics Coupling Analysis for Nuclear Reactor System
The nuclear reactor system is complex and the operating environment is harsh, resulting in the complex phenomena of multi-physics coupling. The multi-physics coupling codes developed in the early stage shows limitations on codes' scalability and ...
WU Yingwei, HE Yanan, ZHANG Jing, TIAN Wenxi, SU Guanghui, QIU Suizheng
doaj +1 more source
Uncertainty Quantitative Analysis of Subchannel Code Calculation of PSBT Void Distribution Benchmark
In order to evaluate the accuracy and reliability of the subchannel code, it is necessary to quantitatively give the uncertainty of the calculation results.
ZHANG Juntao, LIU Xiaojing, ZHANG Tengfei, CHAI Xiang
doaj +1 more source
Subchannel access and rate assignment for multicarrier multi-cell networks [PDF]
[[abstract]]We study in this paper the subchannel access and the rate assignment for the multicarrier multi-cell networks. For subchannel access, we show from theoretic results and simulation results that the scheme with only one user per cell in each ...
Wang, JT, 王瑞騰
core
Joint Optimization of User Association, Subchannel Allocation, and Power Allocation in Multi-Cell Multi-Association OFDMA Heterogeneous Networks [PDF]
Heterogeneous network is a novel network architecture proposed in long-term-evolution, which highly increases the capacity and coverage compared with the conventional networks.
Feng Wang +3 more
semanticscholar +1 more source
We present a method for calculating the single-phase turbulent mixing rate between subchannels in nuclear fuel rod bundles. In this method, the mixing rate is calculated using a newly defined subchannel geometry factor, which depends only on the geometry of the subchannel cross section, and the mean turbulent diffusivity computed from Elder's ...
Kawahara, Akimaro +3 more
openaire +2 more sources
CFD analyses of the rod bowing effect on the subchannel outlet temperature distribution [PDF]
In the Loviisa 1 and 2 nuclear power plants the subcooling margin of the hottest subchannel of the fuel assembly is monitored. The temperature of the coolant in the hottest subchannel is limited to the constant saturation temperature. Bending of the fuel
K. Ekström, T. Toppila
core +1 more source
The Optimal Subchannel and Bit Allocation Problem for OFDM [PDF]
The advantages of the orthogonal frequency division multiplexing (OFDM) are high spectral efficiency, resiliency to RF interference, and lower multi-path distortion. To further utilize vast channel capacity of the multiuser OFDM, one has to find the efficient adaptive subchannel and bit allocation among users.
Taehyung Park, Sungbin Im
openaire +1 more source
This study demonstrates, for the first time, a 3D volumetric cylindrical vector beam (CVB) multicasting architecture that employs multichannel array modes with an operational dimension of 3 × 3 × 5 as information carriers. This approach offers substantial potential for high‐capacity information dissemination in mode‐multiplexed communication networks ...
Zhiqiang Xie +8 more
wiley +1 more source
Assessment of CTF boiling transition and critical heat flux modeling capabilities using the OECD/NRC BFBT and PSBT benchmark databases [PDF]
The need to refine models for best-estimate calculations, based on good-quality experimental data, has been expressed in many recent meetings in the field of nuclear applications.
Avramova, Maria, Cuervo Gómez, Diana
core +1 more source
Joint subchannel and power allocation in interference-limited OFDMA femtocells with heterogeneous QoS guarantee [PDF]
In this paper, we consider the joint subchannel and power allocation problem in both the uplink and the downlink for two-tier networks comprising spectrum-sharing macrocells and femtocells.
A. Nallanathan +13 more
core +1 more source

