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Laboratory Production of Fine Grain Nuclear Emulsion
Abstract: "Nuclear emulsion has been made in a manner similar to that of Demers and of Perfilov. An attempt has been made to achieve the grain size and sensitivity of Perflov's type P-9 Sensitive emulsion. Silver bromide grain sizes of essentially the same average size as Perfilov's were made from precipitations carried out over a narrow range of pAg's. Three brands of gelatin were tried. High sensitivity has not been achieved."
Date:
July 10, 1958
Creator:
Oliver, Albert J.
System:
The UNT Digital Library
A Simple Analogue Instrument For Summing Angles in the Root Locus Method of Solving Ordinary Equations and Stability Problems
The root locus method of the treatment of stability problems in the field of servomechanisms is briefly summarized. A simple mechanical instrument of the analogue type (a summing device) containing no gear mechanisms, and designed to do most of the numerical work of the root locus method, is also described.
Date:
July 10, 1953
Creator:
Harris, Arnold H.
System:
The UNT Digital Library