Test methods for hot abrasion resistance of refractories in China and overseas were briefly introduced. A new test method for hot abrasion resistance was researched. The new method inherits test principle of cold abra...Test methods for hot abrasion resistance of refractories in China and overseas were briefly introduced. A new test method for hot abrasion resistance was researched. The new method inherits test principle of cold abrasion resistance in Chinese standard totally, adopts compressed air pre-heating and electricity heating sam- ples, and is featured with complete structure, good con- trollability, simple operation, and small size. The characteristics and operating procedure of HAT-14A tester were introduced. The hot abrasion resistance of various refractories at different temperatures was tested.展开更多
全球大气温湿度廓线是研究极端天气和气候变化的重要数据集。本文利用三源资料误差评估方法评估了2021年风云三号极轨卫星(FY-3D)和美国极轨卫星(Suomi National Polar-Orbiting Partnership,NPP)以及掩星探测系统(Constellation Observ...全球大气温湿度廓线是研究极端天气和气候变化的重要数据集。本文利用三源资料误差评估方法评估了2021年风云三号极轨卫星(FY-3D)和美国极轨卫星(Suomi National Polar-Orbiting Partnership,NPP)以及掩星探测系统(Constellation Observing System for Meteorology,Ionosphere and Climate-2,COSMIC2)的温湿度廓线产品的误差。结果表明:①三类温度廓线均方根误差垂直分布相似,在对流层中低层(700~300 hPa)一致性较好,且小于2 K;对比三类湿度廓线,FY-3D湿度廓线的均方根误差最大,NPP的均方根误差最小。②晴空条件下FY-3D温湿度廓线均方根误差较全天空条件减小最显著;NPP温湿度廓线误差有微弱减小;受洋面超折射现象的影响,COSMIC2温湿度廓线低层反演精度有所降低。③与单一资料评估法相比,三源数据误差估计方法考虑了基准数据自身的误差后,计算的COSMIC2温湿度廓线误差在对流层低层分别增加了0.4 K和0.3 g·kg^(-1)。展开更多
文摘Test methods for hot abrasion resistance of refractories in China and overseas were briefly introduced. A new test method for hot abrasion resistance was researched. The new method inherits test principle of cold abrasion resistance in Chinese standard totally, adopts compressed air pre-heating and electricity heating sam- ples, and is featured with complete structure, good con- trollability, simple operation, and small size. The characteristics and operating procedure of HAT-14A tester were introduced. The hot abrasion resistance of various refractories at different temperatures was tested.
文摘全球大气温湿度廓线是研究极端天气和气候变化的重要数据集。本文利用三源资料误差评估方法评估了2021年风云三号极轨卫星(FY-3D)和美国极轨卫星(Suomi National Polar-Orbiting Partnership,NPP)以及掩星探测系统(Constellation Observing System for Meteorology,Ionosphere and Climate-2,COSMIC2)的温湿度廓线产品的误差。结果表明:①三类温度廓线均方根误差垂直分布相似,在对流层中低层(700~300 hPa)一致性较好,且小于2 K;对比三类湿度廓线,FY-3D湿度廓线的均方根误差最大,NPP的均方根误差最小。②晴空条件下FY-3D温湿度廓线均方根误差较全天空条件减小最显著;NPP温湿度廓线误差有微弱减小;受洋面超折射现象的影响,COSMIC2温湿度廓线低层反演精度有所降低。③与单一资料评估法相比,三源数据误差估计方法考虑了基准数据自身的误差后,计算的COSMIC2温湿度廓线误差在对流层低层分别增加了0.4 K和0.3 g·kg^(-1)。
