The temperature stress of reinforced concrete component caused by different linear ex pension coefficient has been discussed in this paper from the point of vie
A series of polymer - supported Pd -Fe2O3 composite catalysts were prepared and their hydrogenation property was investigated. It was found that the above catal
In this paper,spodumene mineral was usedas raw material for fabricating glass ceramic with the addi-tion of MgO,ZnO and TiO<sub>2</sub>,ZrO<sub>2</sub>.The expa
The present experiment was designed to elucidate the effects of the sterilized colloids separated from red soil,latosol and yellow brown soil,which are the typi