Design of vehicle GPS navigation system based on S3C2440A
hou zhi-ning1; wang zong-qiang1; yue you-jun1; 2; zong qun1(1.school of electrical engineering and automation; tianjin university; tianjin 300072; china; 2.school of electrical engineering; tianjin university of technology; tianjin 300384; china)
..............page:23-26
..............page:80-82,88
Synthesis of 3-aminobenzoic acid
zhang rui; liu xiu-jie; hu tao; yin qun(school of chemistry and chemical engineering; tianjin university of technology; tianjin 300384; china)
..............page:38-39,42