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Applications of circuit analysis computer programs to estuarine pollution problems
(1967)
This research establishes a method of analyzing the equations that describe pollution problems employing a digital computer program previously in existence, the IBM Electronic Circuit Analysis Program (ECAP). In this ...
An improved hybrid coding system for very noisy channels
(1970)
Sequential-Algebraic hybrid coding schemes seem to provide efficient error reduction for very noisy channels. One such scheme was proposed by Huband and Jelinek. This hybrid scheme requires large amount, of shift- register ...
A linear group and state variable formulation of the electrical network analysis problem
(1966)
This paper reports on the development of a network analysis technique employing both a linear graph theory formulation of the topological relations and a state variable analysis of these relations. As a consequence of these ...
A report on an investigation of a commutated magnetometer detector
(1949)
The subject of this investigation is a commutated rotating coil magnetometer element. One detector with quadrature sets of brushes could be used to align a second element with the total earth's field. It was lay contention ...
On extending audio feedback loops to include electrodynamic speakers
(1952)
Summary. The purpose of the investigation was to determine the applicability of extending inverse feedback techniques to electrodynamic loudspeakers by finding first, what the general limitations were, and second, how much ...
An instantaneous respiratory tachometer
(1964)
The development of an instrument which measures the rate of respiration from breath to breath is discussed. The device uses as its input the impedance change of the chest cavity associated with respiration. It is designed ...
The effect of ground plane size on the input admittance of a rectangular waveguide-fed aperture
(1969)
An experimental investigation was undertaken to determine how large a ground plane is necessary to insure best possible experimental agreement with calculated values of admittance and susceptance for a rectangular waveguide-fed ...
The use of computer-predicted performance in the design of a three-port H-plane waveguide circulator with central ferrite post
(1968)
An approximate evaluation procedure to predict the performance of a circulator is justified. The scattering matrix description of a circulator is developed. Based on the theory by Davies, the scattering matrix elements are ...
Deposition temperature of evaporated permalloy films
(1972)
A vacuum evaporated chromel and constantan thin film thermocouple is developed and used to measure the deposition temperature of evaporated permalloy films. The maximum permalloy film temperature is 12000 higher than the ...