Ozonation of cooling tower waters

Continuous ozone injection into water circulating between a cooling tower and heat exchanger with heavy scale deposits inhibits formation of further deposits, promotes flaking of existing deposits, inhibits chemical corrosion and controls algae and bacteria

A study of the durability of beryllium rocket engines

For abstract, see N74-35204

Neurophysiological and Behavioral Studies of Chimpanzees Semiannual Report, 1 Jul. - 31 Dec. 1966

Computer program for control of chimpanzee discrimination test analysis and electroencephalographic response dat

Monitoring brain function and performance in the primate under prolonged weightlessness Final report, 15 Aug. 1963 - 14 Aug. 1964

Summary of program for monitoring brain function and performance in primate under prolonged weightlessnes

Neurophysiological and behavioral studies of chimpanzees Semiannual report, Jan. 1 - Jun. 30, 1966

Techniques and bioinstrumentation for behavioral and neurophysiological studies of chimpanzees and Apollo application

Summer Institute in Space Biology Final report, Apr. 1 - Nov. 30, 1968

Space biology laboratory on effects of aerospace environments on physiological and psychological performance of astronaut

A study of the durability of beryllium rocket engines

An experimental test program was performed to demonstrate the durability of a beryllium INTEREGEN rocket engine when operating under conditions simulating the space shuttle reaction control system. A vibration simulator was exposed to the equivalent of 100 missions of X, Y, and Z axes random vibration to demonstrate the integrity of the recently developed injector-to-chamber braze joint. An off-limits engine was hot fired under extreme conditions of mixture ratio, chamber pressure, and orifice plugging. A durability engine was exposed to six environmental cycles interspersed with hot-fire tests without intermediate cleaning, service, or maintenance. Results from this program indicate the ability of the beryllium INTEREGEN engine concept to meet the operational requirements of the space shuttle reaction control system

Computer analysis of EEG data for a normative library Final report, Sep. 24, 1963 - Jan. 31, 1966

Computer analysis of electroencephalographic data for development of normative criteri

Role of Insects and Diseases in a Jack Pine Provenance Study

Two jack pine plantations were established at the Cloquet Forestry Center, Cloquet, Minnesota, in 1942 and 1943, using trees originating from 22 sites in the United States and 10 in Canada. From 1945 to 1953 the incidence of attack by insects and diseases was recorded individually for all trees, and in 1980-1981 the diameter and form of both living and dead trees were recorded. There were differences in the incidence of attack by the pests and in tree response to early injury among the various seed sources. In 1980 and in 1981 there were differences in tree form resulting from insect and both living and dead pest-free trees had the best form. The diameter increases from 1955 to 1980-1981 were almost identical for all categories with the exception of the dead pest-free trees which had the smallest diameters