The paper analyzes the effect of rolling angle rate of motion carrier on tracking stability of antenna target and derives the error of motion carrier in the two-dimension stability system.

Image motion produced by the carrier movement on the focal plane within integration time is analyzed according to the geometric relation between photoelectric imaging system and target.

An Autonomous Underwater Vehicle has been applied more comprehensively,and as a carrier,its load makes up a multi-bodies system.

The classification of C4-dicarboxylate transporter,the expression and regulation of C4-dicarboxylate transport genes,and the importance of C4-dicarboxylate transport system for nitrogen fixation were reviewed in the paper.

Small intestinal segments samples were collected from duodenum,proximal and distal jejunums,ileum for detection intestinal tissue distribution of oligopeptide transporter PepT1,anionic amino acid transporter EAAC1 and cationic amino acid transporter CAT1 mRNA abundance by Real-time PCR.

This paper introduces the basic concept of soil and water loss and agricultural non-point source pollution,and then points out that soil and water loss is the important form and transportation carrier of agricultural non-point source pollution.