Enantioselective fluorination of β-keto ester using a PEG-bound urea-containing chiral quaternary ammonium salt catalyst

by Baohua Zhang, Lanxiang Shi, Ruixia Guo, Sijie Liu
Published 2016-07-01

Models of steam-assisted gravity drainage (SAGD) steam chamber expanding velocity in double horizontal wells and its application

by You ZHOU, Teng LU, Shouya WU, Lanxiang SHI, Xuan DU, Junling WANG
Published 2019-04-01