Different bamboo vinegars prepared by earth kiln(BVE)and self-ignition stove(BVS)respectively were compared in terms of physical and chemical indexes.

Provenance and dating study on Jianyao Kiln porcelain bodies using NAA and WDXRF;

In cooperation with the construction work in Hebi city,Henan province,a series of ancient pottery and porcelain kilns have been excavated from 1988 and thus all those materials have contributed a lot in studying the development of the Central Plains especially the Hepi city in terms of its social economy.

Safe and rapid construction technology of super-long tunnel going through the goaf of ancient coal pit;