The failures of small satellite are divided into three levels: sub system level, system level and outside system level, and the failures in system level are processed by housekeeping software. grade. 它将小卫星的故障分为分系统级、系统级和系统外部级三种,并由星务管理软件处理系统级故障。
The principle of housekeeping software design, multi-task design, data communication, double computer fault diagnosing and processing are described in detail. 并对软件设计原则、多任务设计、数据通信、双机容错和故障诊断与处理作了较详细的讨论。
Methods A semi-quantitative RT-PCR two-step method was developed to determine LDH gene against the housekeeping gene recA. Gene expression level of LDH was assayed by gel documentation system and QUANTITY ONES software. 方法应用半定量RT-PCR两步法和凝胶成像系统定量软件分析,分别对20株来自不同基因型的LDH进行基因表达水平差异的评价和比较。