Download or read book System Development and Early Biological Tests in NASA s Biomass Production Chamber written by and published by . This book was released on 1990 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book System Development and Early Biological Tests in Nasa s Biomass Production Chamber written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-12 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Biomass Production Chamber at Kennedy Space Center was constructed to conduct large scale plant growth studies for NASA's CELSS program. Over the past four years, physical systems and computer control software have been continually upgraded and the degree of atmospheric leakage from the chamber has decreased from about 40 to 5 percent of the total volume per day. Early tests conducted with a limited degree of closure showed that total crop (wheat) growth from the best trays was within 80 percent of reported optimal yields for similar light levels. Yields from subsequent tests under more tightly closed conditions have not been as good--up to only 65 percent of optimal yields. Yields appear to have decreased with increasing closure, yet potential problems exist in cultural techniques and further studies are warranted. With the ability to tightly seal the chamber, quantitative data were gathered on CO2 and water exchange rates. Results showed that stand photosynthesis and transpiration reached a peak near 25 days after planting, soon after full vegetative ground cover was established. In the final phase of testing when atmospheric closure was the highest, ethylene gas levels in the chamber rose from about 10 to nearly 120 ppb. Evidence suggests that the ethylene originated from the wheat plants themselves and may have caused an epinastic rolling of the leaves, but no apparent detrimental effects on whole plant function. Wheeler, R. M. and Mackowiak, C. L. and Dreschel, T. W. and Sager, J. C. and Prince, R. P. and Knott, W. M. and Hinkle, C. R. and Strayer, R. F. Kennedy Space Center ...
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1994 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Download or read book Atmospheric Leakage and Condensate Production in NASA s Biomass Production Chamber Effect of Diurnal Temperature Cycles written by and published by . This book was released on 1991 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1981 with total page 1372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace Medicine and Biology written by and published by . This book was released on 1991 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Far Beyond the Moon written by David P. D. Munns and published by University of Pittsburgh Press. This book was released on 2021-06-01 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the beginning of the space age, scientists and engineers have worked on systems to help humans survive for the astounding 28,500 days (78 years) needed to reach another planet. They’ve imagined and tried to create a little piece of Earth in a bubble travelling through space, inside of which people could live for decades, centuries, or even millennia. Far Beyond the Moon tells the dramatic story of engineering efforts by astronauts and scientists to create artificial habitats for humans in orbiting space stations, as well as on journeys to Mars and beyond. Along the way, David P. D. Munns and Kärin Nickelsen explore the often unglamorous but very real problem posed by long-term life support: How can we recycle biological wastes to create air, water, and even food in meticulously controlled artificial environments? Together, they draw attention to the unsung participants of the space program—the sanitary engineers, nutritionists, plant physiologists, bacteriologists, and algologists who created and tested artificial environments for space based on chemical technologies of life support—as well as the bioregenerative algae systems developed to reuse waste, water, and nutrients, so that we might cope with a space journey of not just a few days, but months, or more likely, years.
Download or read book Biomass Production Chamber Air Analysis of Wheat Study Bwt931 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: NASA's Controlled Ecological Life Support System (CELSS) biomass production chamber at John F. Kennedy Space Center provides a test bed for bioregenerative studies using plants to provide food, oxygen, carbon dioxide removal, and potable water to humans during long term space travel. Growing plants in enclosed environments has brought about concerns regarding the level of volatile organic compounds (VOC's) emitted from plants and the construction materials that make up the plant growth chambers. In such closed systems, the potential exists for some VOC's to reach toxic levels and lead to poor plant growth, plant death, or health problems for human inhabitants. This study characterized the air in an enclosed environment in which wheat cv. Yocora Rojo was grown. Ninty-four whole air samples were analyzed by gas chromatography/mass spectrometry throughout the eighty-four day planting. VOC emissions from plants and materials were characterized and quantified. Batten, J. H. and Peterson, B. V. and Berdis, E. and Wheeler, E. M. Unspecified Center...
Download or read book Statistical Analysis of Environmental Variability Within the CELSS Breadboard Project s Biomass Production Chamber written by and published by . This book was released on 1993 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the NASA Controlled Ecological Life Support Systems CELSS Program 1989 1992 written by Janet V. Powers and published by . This book was released on 1994 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Life Support Technologies Commercial Opportunities written by and published by . This book was released on 1990 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the NASA Controlled Ecological Life Support System CELSS Program 1989 1992 written by Janet V. Powers and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1754 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Departments of Veterans Affairs and Housing and Urban Development and Independent Agencies Appropriations for 2002 written by United States. Congress. House. Committee on Appropriations. Subcommittee on VA, HUD, and Independent Agencies and published by . This book was released on 2002 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spaceflight Life Support and Biospherics written by P. Eckart and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spaceflight Life Support and Biospherics is the introduction to space life support systems and artificial ecosystems that has so far been lacking. It is a source of information for everyone involved in the life support system design and development process - engineers, scientists, and students - as well as all those who are simply interested in this existing discipline. The structure of this book is such that it gives step-by-step answers to the basic questions concerning life support systems on any scale - from small microbial systems to the Earth's biosphere: Why life support system development and biosphere research? How does our natural life support system, the biosphere, work? What are the environmental conditions for life support systems in space? What are the fundamental terms and requirements of life support? Which physicochemical life support subsystems currently exist? Which are the potential bioregenerative life support technologies of the future? What are life support systems of future planetary habitats going to look like? What are the experiences of the largest artificial ecosystem - Biosphere 2? What are the potential terrestrial benefits of life support development? £/LIST£
Download or read book Biologically Active Natural Products written by Horace G. Cutler and published by CRC Press. This book was released on 1999-06-23 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural products that have both plant growth regulatory properties and pharmaceutical properties are examined in this book. This is the first and most up-to-date text linking agrochemistry and pharmaceutical chemistry in an easy to read presentation for practitioners in both fields. Due to the intense and widespread attention being given to
