A first-order prediction model of total-electron-content group path delay for a midlattitude ionosphere; Negative ion-neutral reactions; Some concepts and designs for highly parallel high-speed arithmetic units; Acoustic surface wave investigations and devices for air force applications; Earth environmental noise fields; Analysis, design, and testing of radiation hardened semiconductor devices; A new silicon avalanche infrared photodetector for the 1- to 2- micrometer region; New directions in human factors engineering for military information systems(Automated training systems); A time dependent map formulation to project subsatellite traces as nearly straight lines; and A multifunctional target signature identification and data compaction technique.