The ultra cone - An ultra-low-noise space communication ground radio-frequency system.
Ultra cone system for ultralow noise reception of RF space communication from Mariner 5 during occultation by Venus
Bathker, D. A.↗
Engineering topics
Higa, W.
Publications and source records attributed to Higa, W..
Spiraled channels improve heat transfer between fluids
Spiral flow channels increase heat transfer between two fluids in a countercurrent heat exchanger of given volume. The heat exchanger is constructed by connecting a spiraled bellows-shaped ducting between two concentric cylindrical tubes.
Higa, W.↗
Total system noise temperature- 15 deg k.
Noise temperature calculated for traveling wave maser system
NOISE MEASUREMENT↗