Steve W. Deutsch

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Computational fluid dynamics (CFD) is used to asses the hydrodynamic performance of a positive displacement left ventricular assist device. The computational model uses implicit large eddy simulation direct resolution of the chamber compression and modeled valve closure to reproduce the in vitro results. The computations are validated through comparisons(More)
  • S Deutsch
  • 1980
An electrical evoked response (EER) stimulator-monitor for ambulatory monkeys is described. Seven time-multiplexed electrodes are used. The unit switches between stimulus and monitor modes at a 100-Hz rate. In the stimulus mode, 3.5 V peak, 0.45-ms pulses are applied at a 100-Hz rate to any electrode selected by means of toggle switches on a remote control(More)
  • S Deutsch
  • 1990
There are two schools of thought with regard to how the auditory central processor achieves good frequency resolution. The first is based on the steep 300 dB/oct rolloff; the second on the fact that the action potential (AP) output of neurons associated with hair cells is partially synchronized to the incoming fin or its subharmonics. The main objection to(More)
The internal electric current or power levels that a human is likely to encounter in a typical electromagnetic field environment are calculated. At 60 Hz, a reasonable value for maximum permissible exposure is an internal current density of 1 microA cm(-2). At this frequency, a 600 V m(-1) electric field results in a current density of 0.0002 microA cm(-2),(More)
The application of the lutetium-176/ hafnium-176 method to gram quantities of minerals containing rare earths is made possible by the development of analytical and isotope dilution techniques for microgram amounts of lutetium and hafnium. The geological redetermination of the half-life of lutetium-176 (3.3 +/- 0.5 x 10(10) years) is in agreement with recent(More)
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