高频感应热等离子体中颗粒运动和加热的研究

颗粒在热等离子体中运动和加热的研究，有广泛的工业应用价值。本文通过颗粒与热等离子体相互作用的计算，给出了颗粒在热等离子体中运动轨迹和加热历程的一些数值模拟结果，为有效控制颗粒的运动轨迹和在高温区的停留时间，提供了依据

颗粒与高频感应热等离子体流的迭代计算

用完全二维自洽模型计算等离子体的速度场和温度场。用颗粒轨迹模型计算颗粒的运动轨迹与加热历程。通过对铝颗粒与氢等离子体流的计算表明，颗粒与高频感应热等离子体流的相互作用，不仅对颗粒的运动轨迹和加热历程有影响，而且对热等离子体流的速度场和温度场也有重要影响

颗粒与高频感应热等离子体流相互作用的数值研究

通过对高频感应热等离子体流温度场与速度场和颗粒运动轨迹与加热过程进行迭代计算，给出了颗粒加热与加速对高频感应热等离子体流反影响的一些数值模拟结果

纳米折叠InGaN/GaN LED材料生长及器件特性

在以自组织Ni纳米岛为掩膜制作的n-GaN纳米柱上,利用MOCVD方法外延生长了具有折叠InGaN/GaN多量子阱(MQW)的LED结构外延片,进而制作了LED器件.外延片上中下游的光致荧光测试,结果表明外延片具有很好的均匀性.用该外延片制作的LED的电致发光谱,随注入电流增加没有明显蓝移,这表明纳米结构能更好地释放应力,纳米柱上外延生长的多量子阱,具有较低的压电极化电场.正向工作电流20mA时,LED器件的工作电压为4.6V

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies