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.
In fact, that's almost entirely what it is. The original EO dealing with national defense resources preparedness was issued in 1939 (EO 8248) according to the National Archives. It has been superseded a number of times, starting in 1951 by nearly every President through Bill Clinton, and amended twice by George W. Bush.