Accession Number : AD0656349

Title :   TEXAS BIANNUAL OF ELECTRONICS RESEARCH, NO. 5.

Descriptive Note : Summary rept. 1 Oct 66-31 Mar 67,

Corporate Author : TEXAS UNIV AUSTIN LABS FOR ELECTRONICS AND RELATED SCIENCE RESEARCH

Personal Author(s) : Dougal,Arwin A.

Report Date : 15 MAY 1967

Pagination or Media Count : 238

Abstract : Recent findings, research investigations in progress, and future plans in the areas of biomedical electronics; information systems, physical, quantum, and plasma electronics; and space, atmospheric, and earth radio sciences are presented. This fifth biannual is highlighted by definitive new results recently obtained in several of these areas. A new numerical classification procedure was applied to a group of psychiatric patients. The procedure yielded a seventy percent agreement with independent clinical diagnosis and indicates that relatively distinct groups exist for the stated diagnostic categories. Experimentation in progress related to the development of mechanized systems for the recognition of spoken English and the recognition of hand printed letters and numbers is summarized. A new feature extraction criterion is found to be mathematically tractable, easier to apply than the minimum probability of misclassification criterion, and to be relevant in learning and pattern recognition. An investigation of field-effect transistor models for use in the Electronic Circuit Analysis Program has been completed and found to give a reasonable simulation of the actual behavior of a pulse inverter circuit. A simple criterion is derived for upper-bounding the rate of convergence of a least square fit algorithm used for recovering function from noisy measurements taken at randomly selected points. Experiments on a non-ohmic current which occurs in thin films of silicon-nitride at high fields are interpreted to attribute the current to a combination of Poole-Frenkel emission, and tunneling.

Descriptors :   (*ELECTRONICS, SYMPOSIA), INFORMATION RETRIEVAL, QUANTUM THEORY, PLASMAS(PHYSICS), CLASSIFICATION, SPACE FLIGHT, BOUNDARY VALUE PROBLEMS, MAGNETIC FIELDS, GEOMAGNETISM, RADAR, SEMICONDUCTORS, LASERS, CYCLOTRONS, ELECTROMAGNETIC RADIATION, PATTERN RECOGNITION, TRANSDUCERS, ANTENNAS, INTERFEROMETERS, BIONICS

Subject Categories : Geomagnetism
      Electricity and Magnetism
      Plasma Physics and Magnetohydrodynamics
      Quantum Theory and Relativity
      Unmanned Spacecraft
      Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE