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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Human nutritional requirements for water in long space flights
Human nutrition requirements for water in manned space flights
Overall energy management as related to nutrition and waste
Electrical and thermal energy management as related to nutrition and waste
Potentialities of proteinoids for nutritional investigation
Simultaneous synthesis of amino acids and proteinoid production for nutritional investigation
Evaluation of chemical diets as nutrition for man-in-space.
Liquid chemical diets provide adequate nutrition and minimal fecal elimination for man in space
Nutritional acceptability of a dehydrated diet.
Nutritional evaluation of precooked dehydrated diet for humans, discussing gastrointestinal stress
Utilization of elements of mineral nutrition by Chlorella cells in intensive cultivation
Utilization of elements of mineral nutrition by Chlorella cells in intensive cultivation
Nutritional requirements and breeding behavior of Perognathus Semiannual progress report, 1 Jan. - 30 Jun. 1966
Nutritional requirements and breeding behavior of Perognathus
Nutritional factors
Nutritional factors role on growth and ecological habits of algae and plankton microorganisms
Nutritional problems
Nutritional requirements and effects of other media factors in influencing metabolic activity of plankton cultures
Effects of quantity, quality, change of diet and nutritional value of food
Effects of quantity, quality, change of diet, and nutritional value of food on growth, lifespan, and reproduction of marine invertebrates
Clinical Nutritional Study of Minimum Protein and Caloric Requirements for Man Annual Report, Sep. 1964 - Sep. 1965
Clinical nutritional study of minimum protein and caloric requirements for man
Nutritional Requirements and Breeding Behavior of Perognathus Semiannual Progress Report, 1 Jul. - 31 Dec. 1966
Nutritional requirements and breeding behavior of two subspecies of Perognathus
Nutrition and balance
Preparation, taste, and nutritional balance of NASA freeze-dehydrated diet
Nutritional evaluation of a precooked dehydrated and bite-sized compressed food diet as sole source of nutriment for six weeks Final report, Aug. 1963 - Jun. 1966
Nutritional evaluation of precooked dehydrated and bite-size compressed food diet as sole nutriment for six weeks
Problems of gastroenterology in space medicine and the physiological bases of cosmonaut nutrition
Problems of gastroenterology in aerospace medicine and physiological bases of astronaut nutrition
The relation of oxygen toxicity to nutritional and hormonal factors.
Oxygen toxicity relation to nutrition, hormonal secretion and age factors, discussing experiments on rats
Wheat response to differences in water and nutritional status between zeoponic and hydroponic growth systems
Hydroponic culture has traditionally been used for controlled environment life support systems (CELSS) because the optimal environment for roots supports high growth rates. Recent developments in zeoponic substrate and microporous tube irrigation (ZPT) also offer high control of the root environment. This study compared the effect of differences in water and nutrient status of ZPT or hydroponic culture on growth and yield of wheat (Triticum aestivum L. cv. USU-Apogee). In a side-by-side test in a controlled environment, wheat was grown in ZPT and recirculating hydroponics to maturity. Water use by plants grown in both culture systems peaked at 15 to 20 L m-2 d-1 up to Day 40, after which it declined more rapidly for plants grown in ZPT culture due to earlier senescence of leaves. No consistent differences in water status were noted between plants grown in the two culture systems. Although yield was similar, harvest index was 28% lower for plants grown in ZPT than in hydroponic culture. Sterile green tillers made up 12 and 0% of the biomass of plants grown in ZPT and hydroponic culture, respectively. Differences in biomass partitioning were attributed primarily to NH4-N nutrition of plants grown in ZPT compared with NO3-N in hydroponic nutrient solution. It is probable that NH4-N-induced Ca deficiency produced excess tillering and lower harvest index for plants grown in ZPT culture. These results suggest that further refinements in zeoponic substrate would make ZPT culture a viable alternative for achieving high productivity in a CELSS.