From the Chemical Engineering Department, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Received May 17, 2010.
Accepted for publication July 5, 2010.
Address correspondence and reprint requests to Abraham Tamir, Chemical Engineering Department, Ben-Gurion University of the Negev, Beer-Sheva, Israel; E-mail: [email protected]
The author reports no conflicts of interest.