The borehole instability mechanism and countermeasure to Permian Liangshan formation in east of Sichuan;

Using the method of instrument testing and identification in combination with geological analysis,the distribution,occurrence and geological controls of the gallium in the coal seam column profile from Lower Permian Liangshan formation,Kali,eastern Guizhou,were studied.

The contents of twelve hazardous trace elements such as Be,P,Sc,Mn,Co,Ni,Cu,Mo,Tl,Pb,Th and U and other trace elements in the high-sulfur coal seam of Lower Permian Liangshan Formation from Kaili,eastern Guizhou were determined using inductively coupled plasma mass spectrometry(ICP-MS).

Tetraodontella(Brachiopoda) from Middle Ordovician at Liangshan of Nanzheng,Southern Shaanxi;

Research on tribo-electrostatic coal preparation ability of Zhongliangshan coal;

Structural analysis of Kuangshanliang in the northern Longmenshan fold-thrust belt and its hydrocarbon exploration;

Analysis of Surveillance Results of Endemic Fluorosis in Liangshan County,Shandong Province from 2004 to 2005;

Anlysis of leakage-genetic of the right dam foundation and the right bank of the flimsy mountain in the Hongsiba reservoir;