Affiliation: | a Department of Chemical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan, ROC b Department of Chemical Engineering, Yung-Ta Institute of Technology and Commerce, Linlo, no. 316, Pingtung 909, Taiwan, ROC c Department of Industrial Safety and Hygiene, Chung Hwa College of Medical Technology, Tainan 717, Taiwan, ROC |