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(S)-4-chloro-3-hydroxybutanoate ((S)-CHBE) is an important chiral intermediate to synthesize the side chain of cholesterol-lowering drug atorvastatin. To biosynthesize the (S)-CHBE, a recombinant Escherichia coli harboring the carbonyl reductase and glucose dehydrogenase was successfully constructed. The recombinant E. coli was cultured in a 500-L(More)
Evacuation is the key aspect to fire performance-based design. In this paper, the landmark building in commercial center of Guangzhou Tianhe is chose for research, and the high-rise building evacuation model in fire scene is established based on Pathfinder. Combined the evacuation behavior and smoke spread velocity, temperature, CO concentration and(More)
Combustion experiments on polystyrene and gasoline were carried out under fire condition and analyzed the combustion disturbance of polystyrene on gasoline. The experimental results show that: there have many common elements in the polystyrene and gasoline combustion products, so it's difficult to draw fire hazard identification conclusions from the(More)
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