On a Generating Algorithm of Curves
ling feng cai; wang xin she (the computer science department; zhoukou teachers college; zhoukou henan 466000; china)
Study on Photocatalyst Synthesis of TiO_2 Mixed Kieselguhr and Activity
wang zhen ling 1; 2 ; li min 1; liu tian xue 2; chang jia zhong 2; shi heng zhen 1 (1 department of chemistry; zhoukou teachers college; 2. analytical and testing centre; zhoukou teachers college; zhoukou henan 466000; chian)