The work in this paper include: As scale of Web logs increasing, the changes of users’ count, Web documents’ count and the average of Web documents’ count accessed by one user are analyzed.

The main work included:As scale of Web logs increasing,how does the users count,Web pages count and the average ofWeb pages count accessed by one user change?And what is the motivation of user accessing Web?The conclusions drawnfrom experiment are very useful,and they can provide some fo.

Based on the fundamental properties of the law of daily change in geomagnetic field,the law of daily change in geomagnetic field is discussed concretely by use of least squares method,and its interpolated accuracy is evaluated.

The rule of diurnal variation of net photosynthetic rate of the fine half-sib families of slash pine were studied by Licor-6400 portable photosynthesis system in order to adjust planting measurement.

An experimental study on daily variations of environment factors and physiological parameters of Lycium barbarum L.;

Flight and daily activity of Liriomyza huidobrensis in June,there is a peak between 5:30 and 7:30 in fine weather;adults are in full swing at morning and noon in bad weather,the fluctuation is flat.