sci论文摘要写作.ppt

Abstract;Importance of abstract; ; Tense: present/past Language: being clear, simple, significant, economical and scientifical. Don’t include Information not stated in the paper; References to the literature; Tables and figures. ;Types of Abstract:;;Example 1. Informative The Impact of Averaging Period on Eddy Fluxes Observed at ChinaFLUX Sites In this paper, (methods) the ‘ensemble block’ time average procedure and the Ogive function are applied to three ChianFLUX sites (objective) to determine the low-frequency contribution to eddy fluxes. (results) It is found that both methods give similar results. (results) They show that 30 min flux-averaging period are sufficient to capture all flux scales over a wheat field, but 60 min or longer is necessary over forests. (results) Our results show that the optimal averaging period is a site-specific parameter. (conclusion) According to this analysis, for some ChinaFLUX sites at least, an averaging period that captures the low-frequency transport may improve the energy balance problem. ;2. Indicative (also descriptive);;Last but not the least:;Useful expressions and sentence patterns;;Objectives;;Methods ;;Results;;Conclusion