The objective of this study is analysis of heat-up process of wet woody particles on a backward acting grate including dynamics motion investigation by implementing XDEM （extended discrete element method） as a novel...The objective of this study is analysis of heat-up process of wet woody particles on a backward acting grate including dynamics motion investigation by implementing XDEM （extended discrete element method） as a novel approach. In this method, the particles are resolved as the discrete phase （individual elements） coupled via heat, mass and momentum transfer to the continuous gas phase. The temperature of particulates along the backward acting grate is investigated by evaluating effects of operating parameters such as bar amplitude and period. Furthermore, the bar motion has effects largely on the heat-up process of the packed bed on the backward acting grate which is considered here as well. In other words, motion of particles caused by bar motion influences the heat transfer of particles and totally the packed bed. In fact, the particles＇ heat-up is performed by a radiative heat flux facing the packed bed surface so that heat transfer of particles as radiation and conduction with surrounding particles is taken into account in addition to convection heat transfer between particles and surrounding gas phase.展开更多
The supersymmetric model is one of the most attractive extensions of the Standard Model of particle physics.In light of the most recently reported anomaly of the muon g-2 measurement by the FermiLab E989 experiment,an...The supersymmetric model is one of the most attractive extensions of the Standard Model of particle physics.In light of the most recently reported anomaly of the muon g-2 measurement by the FermiLab E989 experiment,and the excesses of gamma rays at the Galactic center observed by Fermi-LAT space telescope,as well as the antiproton excess observed by the Alpha Magnetic Spectrometer,we propose to account for all these anomalies or excesses in the Next-to-Minimal Supersymmetric Standard Model(NMSSM).Considering various experimental constraints including the Higgs mass,B-physics,collider data,dark matter relic density and direct detections,we find that a~60 GeV bino-like neutralino is able to successfully explain all these observations.Our scenario can be sensitively probed by future direct detection experiments.展开更多
文摘The objective of this study is analysis of heat-up process of wet woody particles on a backward acting grate including dynamics motion investigation by implementing XDEM （extended discrete element method） as a novel approach. In this method, the particles are resolved as the discrete phase （individual elements） coupled via heat, mass and momentum transfer to the continuous gas phase. The temperature of particulates along the backward acting grate is investigated by evaluating effects of operating parameters such as bar amplitude and period. Furthermore, the bar motion has effects largely on the heat-up process of the packed bed on the backward acting grate which is considered here as well. In other words, motion of particles caused by bar motion influences the heat transfer of particles and totally the packed bed. In fact, the particles＇ heat-up is performed by a radiative heat flux facing the packed bed surface so that heat transfer of particles as radiation and conduction with surrounding particles is taken into account in addition to convection heat transfer between particles and surrounding gas phase.
基金the National Natural Science Foundation of China(U1738210,12047560,and 11773075)China Post-doctoral Science Foundation(2020M681757)。
文摘The supersymmetric model is one of the most attractive extensions of the Standard Model of particle physics.In light of the most recently reported anomaly of the muon g-2 measurement by the FermiLab E989 experiment,and the excesses of gamma rays at the Galactic center observed by Fermi-LAT space telescope,as well as the antiproton excess observed by the Alpha Magnetic Spectrometer,we propose to account for all these anomalies or excesses in the Next-to-Minimal Supersymmetric Standard Model(NMSSM).Considering various experimental constraints including the Higgs mass,B-physics,collider data,dark matter relic density and direct detections,we find that a~60 GeV bino-like neutralino is able to successfully explain all these observations.Our scenario can be sensitively probed by future direct detection experiments.
