Study on change laws of biomass and productivity of Masson Pine forest plantation Ⅲ Biomass and productivity of different site;

Research on change law of loessial physical property;

Distribution characteristics and change law of the key elements in the coastal water of Sanya Bay,Hainan;

The characters and variation of carboniferous-permian coal in Tongxin Coalmine;

Variations and Environmental Factors of Castanopsis Fargesi Stem Sap Flow;

Study on Variation of Drought Index and Causes of Grassland Degradation in Bayannaoer Area;

Study on the changing law of the rag filling power of the flue-cured tobacco duing aging;

Experimental study on changing law of viscosity and interfacial tension in weak base ASP flooding

Using the national standard method—Folin spectrophotometry,this paper makes detailed analysis of the concentration and the changing law of formaldehyde existing in the 50 more houses in Chengdu.

Storage charaters of mining coal seam in Xinhua exploration field and change rule;

Comparative Studies on the Change Rule of Antioxidase and Trace Element Content of the Cows Serum in the Perinatal Period;

By using core analytical information of inspection chamber at different water cut stages, and several technical means such as physical and numerical simulation were applied to researching change rules of the reservoir wettability, the change mechanism of the reservoir wettability was discovered and the influence the wettab.

The estimation of tail index for regular variation heavy-tailed distributions aroused our concern,many scholars proposed several methods,but all of them have some disadvantages.

In this paper high order general regular variation condition is proposed.