Subsidized by technical university of berlin 1996 - 1998 , the cas 1998 - 1999 and huaxia yingcai foundation 1999 ; 5 . research on machinery in ancient china 中國(guó)科學(xué)技術(shù)史學(xué)會(huì)常務(wù)理事及技術(shù)史專(zhuān)業(yè)委員會(huì)副主任委員,中國(guó)機(jī)械工程學(xué)會(huì)理事機(jī)械史分會(huì)常務(wù)理事。
He was a post - doctoral fellow at nanyang technological university , singapore from 1994 to 1996 , and worked at the technical university of berlin , germany as an alexander von humboldt research fellow from 1996 to 1997 1994年在北京郵電大學(xué)獲博士學(xué)位, 1994 - 1996年為新加坡南洋理工大學(xué)博士后, 1996 - 1997年為德國(guó)柏林工業(yè)大學(xué)洪堡基金研究員。