Save your precious time and money by using this approach to fractional-factorial design of experiments (DOE) for studies involving 6 to 7 variables. Highly recommended.
To read the article which was written by Joseph F. Louvar from Wayne State University, which was published in CEP, January 2010 edition, please download the article from the link below:
http://www.mediafire.com/file/qfxx293n96p92bk/simpligyexptdesign.pdf
Contributed by Prof. Dr. Nor Aishah Saidina Amin.
Methane–Carbon Dioxide: Conversions to Syngas and Hydrocarbons, by:
Nor Aishah Saidina Amin, Istadi, Tung Chun Yaw, Ruzina Isha