In January 2009 the Non-shaft Underground Coal Gasification(UCG) Technology jointly developed by ENN Group and China University of Mining Technology (Beijing)
Expansion of capacity Demand for butyl rubber in China has grown rapidly in recent years.The apparent consumption of butyl rubber was 67 000 tons in 2002 and r
Dideoxy-2’-fluoro-3’-hydroxymethylarabinofuranosylthymine 10 and cytosine 12 were synthesized from L-xylose and were found to be inactive against HIV-1 in acu
A WC-supported S_2O 2-_8/ZrO_2(PSZ) catalyst was prepared and characterized by means of XRD, BET, FTIR and XPS. The isomerization of n-pentane over the catal
From the dried aerial part of Parepigynum funingesis Tsiang et P. T. Li (Apocynaceae), a new cardiac glucoside, named parefuningoside (1) had been isolated. It