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4篇 您的检索式:作者名="Jintian Wu"
    题名 作者 年代 出处 被引量
1CFD simulation of a gas-solid fluidized bed with two vertical jets显示文摘A computational fluid dynamics(CFD)model is used to investigate the hydrodynamics of a gas-solid fluidized bed with two vertical jets.Sand particles with a density of 2660 kg/m3 and a diameter of 5.0×10-4 m are employed as the solid phase.Numerical computation is carried out in a 0.57 m×1.00 m two-dimensional bed using a commercial CFD code,CFX 4.4,together with user-defined Fortran subroutines.The applicability of the CFD model is validated by predicting the bed pressure drop in a bubbling fluidized bed,and the jet detachment time and equivalent bubble diameter in a fluidized bed with a single jet.Subsequently,the model is used to explore the hydrodynamics of two vertical jets in a fluidized bed. The computational results reveal three flow patterns,isolated,merged and transitional jets,depending on the nozzle separation distance and jet gas velocity and influencing significantly the solid circulation pattern.The jet penetration depth is found to increase with increasing jet gas velocity,and can be predicted reasonably well by the correlations of Hong et al.(2003)for isolated jets and of Yang and Keairns (1979)for interacting jets.Pei Pei Kai Zhang Jintian Ren Dongsheng Wen Guiying Wu 2010Particuology2010,8,5:3
2Influence of ammonium polyphosphate microencapsulation on flame retardancy, thermal degradation and crystal structure of polypropylene composite显示文摘Kun Wu Yankui Zhang Wenguang Hu Jintian Lian Yuan Hu 2013Composites Science and Technology2013,,:1
3Widely tunable and high resolution mid‑infrared laser based on BaGa_(4)Se_(7)optical parametric oscillator显示文摘The widely tunable and high resolution mid-infrared laser based on a BaGa_(4)Se_(7)(BGSe)optical parametric oscillator(OPO)was demonstrated.A wavelength tuning range of 2.76–4.64μm and a wavelength tuning resolution of about 0.3 nm were obtained by a BGSe(56.3°,0°)OPO,which was pumped by a 1064 nm laser.It is the narrowest reported wavelength tuning resolution for BGSe OPO,and was obtained by simultaneously controlling the angle and temperature of BGSe.Qing Ye Hui Kong Jintian Bian Jiyong Yao Enlong Wang Yunlong Wu Haiping Xu Kaihua Wen Yihua Hu 2023Frontiers of Optoelectronics2023,16,3:0
4Co-doping strategy enhanced the ionic conductivity and excellent lithium stability of garnet-type Li_(7)La_(3)Zr_(2)O_(12)electrolyte in all solidstate lithium batteries显示文摘Garnet-type Li_(7)La_(3)Zr_(2)O_(12)(LLZO)is one of the most promising solid-state electrolytes(SSEs).However,the application of LLZO is limited by structural instability,low ionic conductivity,and poor lithium stability.To obtain a garnet-type solid electrolyte with a stable structure and high ionic conductivity,a series of TaeCe co-doping cubic Li_(6.4)La_(3)Zr_(1.4-x)Ta_(0.6)Ce_(x)O_(12)(LLZTCO,x=,0.02,0.04,0.06,0.08,0.10,0.20,0.30)electrolytes were successfully synthesized through conventional solid-phase method.The Ta^(5+)doping can introduce more lithium vacancies and effectively maintain the stability of the cubic phase.The Ce^(4+)with a larger ionic radius is introduced into the lattice to widen the Lit migration bottleneck size,which significantly increased the ionic conductivity to 1.05×10^(-3)S/cm.It also shows excellent stability to lithium metal by the optimization of Lit transport channel.Li||LLZTCO||Li symmetric cells can cycle stably for more than 6000 h at a current density of 0.1 mA/cm^(2)without any surface modifications.The commercialization potential of LLZTCO samples in all solid-state lithium batteries(ASSLBs)is confirmed by the prepared LiFePO_(4)||LLZTCO||Li cells with a capacity retention rate of 98%after 100 cycles at 0.5C.This new co-doping method presents a practical solution for the realization of high-performance ASSLBs.Ziqiang Xu Xin Hu Bowen Fu Kashif Khan Jintian Wu Teng Li Haiping Zhou Zixuan Fang Mengqiang Wu 2023Journal of Materiomics2023,9,4:0
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