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Computer simulation studies of parabolic interpolation circuitry
A computer-simulation study of parabolic interpolation circuitry for machine tool controllers was completed. Results showed that a tool center can be moved along any parabolic arc to within any realistic tolerance. Circuit design requirements were determined and input data required by the parabolic interpolators were defined. Simulation results showed that tool motion along a pronounced parabolic path would stay within a 1/2-microinch tolerance. An application of the parabolic interpolation toward reducing the large input data volumes required by conventional numerical controllers was achieved. (auth)
Date:
December 28, 1973
Creator:
Davenport, C.M.
System:
The UNT Digital Library
Design Data for Hollow Cathode Gas-Fed Arcs
Engineering information is provided to fabricate and operate equipment for generating hollow cathode arcs. Topics include equipment selection and design, operating procedures, and operating characteristics. Hollow-cathode operating characteristics for a wide range of cathode sizes, gas-flow rates, gas types, and cathode-anode spacings are covered. (auth)
Date:
December 19, 1973
Creator:
Williams, Duane G.
System:
The UNT Digital Library
Review of literature pertinent to the aqueous conversion of radionuclides to insoluble silicates with selected references and bibliography (revised)
None
Date:
December 1, 1973
Creator:
Brownell, L.E.; Kindle, C.H. & Theis, T.L.
System:
The UNT Digital Library