There are five basic gasifier technologies currently in commercial use: â 1 Down Draftâ Fixed Bed. â 2 Up Draftâ Fixed Bed. 3  Fluidized Bed Reactor. 4  Entrained Flow. 5  Plasma.
2 B. Brief History of HMOs A health maintenance organization is defined as âan organization that combines the provision of health insurance and the delivery of health care services.â (Given 1994) Early HMOs and HMO-like institutions developed in the 1930s.
MRE History. The MRE was adopted as the Department of Defense combat ration in 1975. A large-scale production test began in 1978 with delivery in 1981. MRE I (1981) was the first date of pack. In 1983, a field evaluation was conducted with the 25th Infantry Division for 34 days. They ate noting but MREs three times a day.