美国一家名为SMaL Camera Technologies的厂商．在CES2001国际电子消费展上．展出一部厚度只有6mm的卡片型数码相机“Ultra-Pocket Digital Camera”．而重量连锂电池也只有63．3克!一般的轻巧数码相机．都是用内置内存来储存数码相片...美国一家名为SMaL Camera Technologies的厂商．在CES2001国际电子消费展上．展出一部厚度只有6mm的卡片型数码相机“Ultra-Pocket Digital Camera”．而重量连锂电池也只有63．3克!一般的轻巧数码相机．都是用内置内存来储存数码相片．而这部SMaL出品的卡片型数码相机，竟然是可以用MMC卡来存相．即使大家如果嫌随机附送的8MB卡容量不够．也随时可以多买几张大容量的MMC卡来用。展开更多
航材自制授权(Spares Material Authorization License,SMAL)程序是波音公司推出的用于支持客户在紧急情况下自制波音零部件的授权程序。该程序旨在解决因波音航材部门供货时间无法满足飞机维修要求而导致飞机非正常停场的问题。本文详...航材自制授权(Spares Material Authorization License,SMAL)程序是波音公司推出的用于支持客户在紧急情况下自制波音零部件的授权程序。该程序旨在解决因波音航材部门供货时间无法满足飞机维修要求而导致飞机非正常停场的问题。本文详细阐述了SMAL程序的背景、申请条件、流程、注意事项及其在飞机维修中的实际应用与优化策略。通过案例分析,总结了SMAL程序申请过程中可能遇到的问题及解决方案,为航空公司和大修企业在紧急情况下高效利用SMAL程序提供了参考。展开更多
Small ubiquitin-like modifier(SUMO)ylation is a key posttranslational modification mechanism that controls the function of a plethora of proteins and biological processes. Given its central regulatory role, it is not ...Small ubiquitin-like modifier(SUMO)ylation is a key posttranslational modification mechanism that controls the function of a plethora of proteins and biological processes. Given its central regulatory role, it is not surprising that it is widely exploited by viruses. A number of viral proteins are known to modify and/or be modified by the SUMOylation system to exert their function, to create a cellular environment more favorable for virus survival and propagation, and to prevent host antiviral responses. Since the SUMO pathway is a multi-step cascade, viral proteins engage with it at many levels, to advance and favor each stage of a typical infection cycle: replication, viral assembly and immune evasion. Here we review the current knowledge on the interplay between the host SUMO system and viral lifecycle.展开更多
文摘美国一家名为SMaL Camera Technologies的厂商．在CES2001国际电子消费展上．展出一部厚度只有6mm的卡片型数码相机“Ultra-Pocket Digital Camera”．而重量连锂电池也只有63．3克!一般的轻巧数码相机．都是用内置内存来储存数码相片．而这部SMaL出品的卡片型数码相机，竟然是可以用MMC卡来存相．即使大家如果嫌随机附送的8MB卡容量不够．也随时可以多买几张大容量的MMC卡来用。
文摘航材自制授权(Spares Material Authorization License,SMAL)程序是波音公司推出的用于支持客户在紧急情况下自制波音零部件的授权程序。该程序旨在解决因波音航材部门供货时间无法满足飞机维修要求而导致飞机非正常停场的问题。本文详细阐述了SMAL程序的背景、申请条件、流程、注意事项及其在飞机维修中的实际应用与优化策略。通过案例分析,总结了SMAL程序申请过程中可能遇到的问题及解决方案,为航空公司和大修企业在紧急情况下高效利用SMAL程序提供了参考。
文摘Small ubiquitin-like modifier(SUMO)ylation is a key posttranslational modification mechanism that controls the function of a plethora of proteins and biological processes. Given its central regulatory role, it is not surprising that it is widely exploited by viruses. A number of viral proteins are known to modify and/or be modified by the SUMOylation system to exert their function, to create a cellular environment more favorable for virus survival and propagation, and to prevent host antiviral responses. Since the SUMO pathway is a multi-step cascade, viral proteins engage with it at many levels, to advance and favor each stage of a typical infection cycle: replication, viral assembly and immune evasion. Here we review the current knowledge on the interplay between the host SUMO system and viral lifecycle.
