New research using smoke

See:

http://www.electronicipc.com/JournalEZ/detail.cfm?code=04200020420141&CFID=877183&CFTOKEN=3F8BE296-FE0E-4745-B46ECEBE92B48706

Link: www.electronicipc.com/JournalEZ/detail.cfm?code=04200020420141&CFID=877183&CFTOKEN=3F8BE296-FE0E-4745-B46ECEBE92B48706