台湾现役C31系统之子系统

“衡山”系统是台军“国防部”对台各军队实施指挥控制的“战略级”自动化系统。它始建于80年代初，1991年投入使用，指挥控制中心设在台北“国防部”地下指挥所。该系统由作战、人事，后勤和通信四个分系统组成。通过连接各军兵种，第一至第五战区等单位的专用通信网络传输信息，实施指挥控制。

80C31单片机应用系统的低功耗设计

介绍了低功耗单片机应用系统的概念及特点，并从三个方面论述了８０Ｃ３１单片机应用系统的低功耗设计技术．

Conditional gene manipulation:Cre-ating a new biological era

To solve the problem of embryonic lethality in conventional gene knockouts, site-specific recombinase （SSR） systems （Cre-loxP, FIp-FRT, and φC31） have been used for tissue-specific gene knockout. With the combination of an SSR system and inducible gene expression systems （tetracycline and tamoxifen）, stage-specific knockout and transgenic expression can be achieved. The application of this ＂SSR＋inducible＂ conditional tool to genomic manipulation can be extended in various ways. Alternatives to conditional gene targeting, such as conditional gene trapping, multipurpose conditional alleles, and conditional gene silencing, have been developed. SSR systems can also be used to construct precise disease models with point mutations and chromosomal abnormalities. With these exciting achievements, we are moving towards a new era in which the whole genome can be manipulated as we wish.

NEN FASHION高科技引领飞行新潮

上世纪最后20年，美苏两个超级大国冷战对抗开始降温。苏联解体后，世界只有美国一个顶尖级的超级大国，但世界在发展先进的航空新兵器方面丝毫没有放慢速度。以美国为代表，各国在研制新型军用飞机、发展和应用电子战技术、复合材料和隐身技术、C31现代战争的神经中枢系统等航空飞行高新技术领域．又开始了新的探索。