W. A. Johnson

  • Citations Per Year
Learn More
Low-voltage low-power ADCs were radiation tested for selection to use on calorimeter instrument of the gamma-ray large area space telescope (GLAST). The GLAST instrument detects the most energetic photons, gamma rays, and pinpoint their source direction and energy. The GLAST instrument has a low-Earth orbit with an expected lifetime total-dose radiation(More)
Carrier landing operations are often suspended due to severe deck motions. Attempts to compensate for deck motions require a detailed knowledge of the nature of such raotions aver short time intervals (because a landing approach typically lasts only 30 sec;. This report contains the results of examining ship motion amplitude and frequency characteristics(More)
A T T H E F O R T Y F I R S T A N N U A L M E E T I N G HADDOCK, J A Y L., AND R A Y D. JACKSON S O M E P L A N T N U T R I E N T R E L A T I O N S H I P S I N T H E P O T A T O C R O P G R O W N O N A C A L C A R E O U S S O I L As a help towards clarifying the concept "Optimum Nutritional Status" of potatoes, a study of the chemical composition of tops,(More)
Early potato production in Alabama is concentrated in a small area in the southwestern part of the state. Froln 15,000 to 30,000 acres are planted in the southern t~art of Baldwin County; the adjoining counties of_ Mobile and Escambia produce a small portion of the crop. The average yields of No. 1 potatoes in recent years have ranged from 8,500 to 10,000(More)
Yields of potatoes in Alabama under widely different practices and weather conditions range from 25 to 400 bushels of No. 1 potatoes per acre. Certain weather conditions cannot be controlled by the grower. He can, however, greatly modify the effects of weather by choice of good production practices. Furthermore, he can use practices that offer a possibility(More)