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.
When was NASA created? The National Aeronautics and Space Administration, known as NASA, officially began operation on October 1, 1958. Its creation was authorized by the National Aeronautics and Space Act, which was signed into law on July 29, 1958 by U.S. President Dwight D. Eisenhower.