The kill characteristics of aimed warhead were studied. Emphasis on the improvement of initiation system, experiments and three dimensional numerical investigations were carried out. Simulation results of side three i...The kill characteristics of aimed warhead were studied. Emphasis on the improvement of initiation system, experiments and three dimensional numerical investigations were carried out. Simulation results of side three initiation points fit experiments well. Optimal initiation style is obtained through further simulation. It shows that the effective fragments and the effective kill energy of the optimal scheme increase 12.8% and 10.1% respectively.展开更多
Recently ＂the hydrocarcking technology aimed at prodigiously boosting jet fuel yield along with improvement of tail-oil quality＂developed by the SINOPEC Research Institute of Petroleum Processing（RIPP） has been su...Recently ＂the hydrocarcking technology aimed at prodigiously boosting jet fuel yield along with improvement of tail-oil quality＂developed by the SINOPEC Research Institute of Petroleum Processing（RIPP） has been successfully applied in commercial scale on the 2.0 Mt/a hydrocracking unit at the SINOPEC Yanshan Branch Company, resulting in implementation of triple functions, viz.： boosting the jet fuel yield, reducing the diesel fuel output and improving the tail-oil quality. This technique has brought about obvious economic and environmental benefts, which can provide a mate-rial basis to bridge the demand gap in jet fuel supply at the new Beijing Airport and will serve as a good ex-ample of SINOPEC’s efforts in the area of transforma-tion of production mode, structure adjustment, product quality upgrading and enhancement of economic ben-efts at the refning enterprise.展开更多
本文通过中层大气高空冰探测器(Aeronomy of Ice in the Mesosphere,AIM)卫星的仪器载荷——用于云成像和粒子实验的探测器(Cloud Imaging and Particle Size,CIPS)和用于冰晶实验的太阳掩星探测器(Solar Occultation for Ice Experimen...本文通过中层大气高空冰探测器(Aeronomy of Ice in the Mesosphere,AIM)卫星的仪器载荷——用于云成像和粒子实验的探测器(Cloud Imaging and Particle Size,CIPS)和用于冰晶实验的太阳掩星探测器(Solar Occultation for Ice Experiment,SOFIE)在2007—2014年间南、北半球的观测数据,分析了2007—2014年间夜光云的反照率、冰水含量(ice water content,IWC)、每日发生率及中层顶温度在南、北半球的变化趋势,讨论了夜光云发生位置和年变化,并且对夜光云反照率、中层顶温度和IWC的相关性进行了分析。结果表明:南、北半球夜光云主要发生在80°~85°纬度范围内,与南半球相比,北半球夜光云反照率持续时间更长、年波动更小、IWC更高且每日发生率更高,而南半球90°W~150°W位置的反照率总是较低;南、北半球夜光云反照率和IWC均与中层顶温度之间存在负相关关系,但反照率和冰水含量相关性表现不明显。本文的研究结果为夜光云作为中间层大气变化的敏感指标提供了量化依据;同时,南、北半球夜光云的差异特性有助于改进气候模型,对理解长期气候变化中的半球不对称响应具有参考意义。展开更多
文摘The kill characteristics of aimed warhead were studied. Emphasis on the improvement of initiation system, experiments and three dimensional numerical investigations were carried out. Simulation results of side three initiation points fit experiments well. Optimal initiation style is obtained through further simulation. It shows that the effective fragments and the effective kill energy of the optimal scheme increase 12.8% and 10.1% respectively.
文摘Recently ＂the hydrocarcking technology aimed at prodigiously boosting jet fuel yield along with improvement of tail-oil quality＂developed by the SINOPEC Research Institute of Petroleum Processing（RIPP） has been successfully applied in commercial scale on the 2.0 Mt/a hydrocracking unit at the SINOPEC Yanshan Branch Company, resulting in implementation of triple functions, viz.： boosting the jet fuel yield, reducing the diesel fuel output and improving the tail-oil quality. This technique has brought about obvious economic and environmental benefts, which can provide a mate-rial basis to bridge the demand gap in jet fuel supply at the new Beijing Airport and will serve as a good ex-ample of SINOPEC’s efforts in the area of transforma-tion of production mode, structure adjustment, product quality upgrading and enhancement of economic ben-efts at the refning enterprise.
基金国家自然科学基金(82574970):安徽省临床医学研究转化专项项目(202304295107020114、202304295107020115):大健康研究院新安医学与中医药现代化研究所专项(2023CXMMTCM015、2023CXMMTCM004)安徽省研究生质量工程研究生创新创业实践项目(2024cxcysj121)安徽省高等学校科学重点研究项目(2024AH050957)Supported by National Natural Science Foundation of China(82574970)。
文摘本文通过中层大气高空冰探测器(Aeronomy of Ice in the Mesosphere,AIM)卫星的仪器载荷——用于云成像和粒子实验的探测器(Cloud Imaging and Particle Size,CIPS)和用于冰晶实验的太阳掩星探测器(Solar Occultation for Ice Experiment,SOFIE)在2007—2014年间南、北半球的观测数据,分析了2007—2014年间夜光云的反照率、冰水含量(ice water content,IWC)、每日发生率及中层顶温度在南、北半球的变化趋势,讨论了夜光云发生位置和年变化,并且对夜光云反照率、中层顶温度和IWC的相关性进行了分析。结果表明:南、北半球夜光云主要发生在80°~85°纬度范围内,与南半球相比,北半球夜光云反照率持续时间更长、年波动更小、IWC更高且每日发生率更高,而南半球90°W~150°W位置的反照率总是较低;南、北半球夜光云反照率和IWC均与中层顶温度之间存在负相关关系,但反照率和冰水含量相关性表现不明显。本文的研究结果为夜光云作为中间层大气变化的敏感指标提供了量化依据;同时,南、北半球夜光云的差异特性有助于改进气候模型,对理解长期气候变化中的半球不对称响应具有参考意义。
