New discovery in whisker growth on Cr-Al-B MAB phase,which was formed during hot-dip aluminizing and subsequent thermal diffusion treatment of Fe-Cr-B cast steel,after cultivation under 400℃,was found.Specifically,al...New discovery in whisker growth on Cr-Al-B MAB phase,which was formed during hot-dip aluminizing and subsequent thermal diffusion treatment of Fe-Cr-B cast steel,after cultivation under 400℃,was found.Specifically,along with the growth of Sn whiskers on the whitened Cr-Al-B MAB phase,Al whiskers also formed,mainly attributed to the thermal activation of whisker cultivation at 400℃and promotion effect of Sn in the Cr-(Al,Sn)-B MAB phase solid solution.Partial Al whiskers,interspersed with small amounts of Sn,exhibited transparency under the scanning electron microscopy image.These whiskers underwent random growth and sucking back into the matrix simultaneously.The temperature during whisker cultivation had a significant effect on the whisker growth.展开更多
文章基于某项目实车平台,根据ISO 26262《道路车辆功能安全》定义的功能安全要求,利用MAB(Micro Auto Box)工具对ADAS系统功能安全进行了研究。本研究用BOB设备对车辆进行了改装,在整车上搭建了MAB设备,并编写了功能安全脚本,在MAB中运...文章基于某项目实车平台,根据ISO 26262《道路车辆功能安全》定义的功能安全要求,利用MAB(Micro Auto Box)工具对ADAS系统功能安全进行了研究。本研究用BOB设备对车辆进行了改装,在整车上搭建了MAB设备,并编写了功能安全脚本,在MAB中运行脚本,对ADAS子系统自适应巡航系统ACC的EBCM控制器进行故障注入研究。结果表明,功能安全脚本可以在MAB中成功运行,可以成功利用MAB设备对EBCM模块进行故障注入。最初车辆减速度控制策略不满足ACC系统的功能安全需求,车辆存在高速制动力过大的问题。经过多次联调和测试,最终车辆的制动减速度控制在要求范围内,满足了ACC系统的功能安全需求,保障了车内驾乘人员的安全,提高了驾乘舒适性。展开更多
以兰州盆地0.8 Ma B.P.阶地为例证,运用古地磁测年方法,通过收集相关文献,分析讨论了0.8 Ma B.P.阶地与0.8 Ma B.P.环境突变事件的联系。结果表明:①0.8 Ma B.P.环境突变事件主要表现在气候转型、构造运动等方面,具有群发性和全球性特点...以兰州盆地0.8 Ma B.P.阶地为例证,运用古地磁测年方法,通过收集相关文献,分析讨论了0.8 Ma B.P.阶地与0.8 Ma B.P.环境突变事件的联系。结果表明:①0.8 Ma B.P.环境突变事件主要表现在气候转型、构造运动等方面,具有群发性和全球性特点;②兰州盆地以及其他区域0.8 Ma B.P.阶地存在的证据,表明河流在0.8 Ma B.P.前后普遍发生过一次下切事件;③0.8 Ma B.P.阶地是河流对0.8 Ma B.P.环境突变事件的地貌响应,构造运动为提供了下切驱动力,而气候变化则控制了下切时间。展开更多
基金financial support from the National Natural Science Foundation of China(Grant Nos.42066003 and 51701053)Hainan Province Science and Technology Special Fund(Grant No.ZDYF2023GXJS148)+1 种基金General Program of Natural Science Foundation of Hainan Province(Grant Nos.420RC522 and 517076)Evaluation Project of Guangdong Provincial Key Laboratory(Grant No.2023B1212060043).
文摘New discovery in whisker growth on Cr-Al-B MAB phase,which was formed during hot-dip aluminizing and subsequent thermal diffusion treatment of Fe-Cr-B cast steel,after cultivation under 400℃,was found.Specifically,along with the growth of Sn whiskers on the whitened Cr-Al-B MAB phase,Al whiskers also formed,mainly attributed to the thermal activation of whisker cultivation at 400℃and promotion effect of Sn in the Cr-(Al,Sn)-B MAB phase solid solution.Partial Al whiskers,interspersed with small amounts of Sn,exhibited transparency under the scanning electron microscopy image.These whiskers underwent random growth and sucking back into the matrix simultaneously.The temperature during whisker cultivation had a significant effect on the whisker growth.
文摘文章基于某项目实车平台,根据ISO 26262《道路车辆功能安全》定义的功能安全要求,利用MAB(Micro Auto Box)工具对ADAS系统功能安全进行了研究。本研究用BOB设备对车辆进行了改装,在整车上搭建了MAB设备,并编写了功能安全脚本,在MAB中运行脚本,对ADAS子系统自适应巡航系统ACC的EBCM控制器进行故障注入研究。结果表明,功能安全脚本可以在MAB中成功运行,可以成功利用MAB设备对EBCM模块进行故障注入。最初车辆减速度控制策略不满足ACC系统的功能安全需求,车辆存在高速制动力过大的问题。经过多次联调和测试,最终车辆的制动减速度控制在要求范围内,满足了ACC系统的功能安全需求,保障了车内驾乘人员的安全,提高了驾乘舒适性。
文摘以兰州盆地0.8 Ma B.P.阶地为例证,运用古地磁测年方法,通过收集相关文献,分析讨论了0.8 Ma B.P.阶地与0.8 Ma B.P.环境突变事件的联系。结果表明:①0.8 Ma B.P.环境突变事件主要表现在气候转型、构造运动等方面,具有群发性和全球性特点;②兰州盆地以及其他区域0.8 Ma B.P.阶地存在的证据,表明河流在0.8 Ma B.P.前后普遍发生过一次下切事件;③0.8 Ma B.P.阶地是河流对0.8 Ma B.P.环境突变事件的地貌响应,构造运动为提供了下切驱动力,而气候变化则控制了下切时间。
