Results 171 to 180 of about 1,001,571 (236)
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Microbiota of radish plants, cultivated in closed and open ecological systems
Acta Astronautica, 2008Abstract It is common knowledge that microorganisms respond to environmental changes faster than other representatives of the living world. The major aim of this work was to examine and analyze the characteristics of the microbiota of radish culture, cultivated in the closed ecological system of human life-support Bios-3 and in an open system in ...
L. Tirranen
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APPLICATION OF THE ECOLOGICAL CLOSED TRANSPORT SYSTEMS IN MINING INDUSTRY
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings, 2019D. Marasová
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, 2020
In a 3-year microcosm study the nitrous oxide (N2O) emission from an agricultural soil amended with urea, ammonium sulphate or potassium nitrate were examined. Soil samples were taken every year to determine the soil physicochemical properties, the total
A. Castellano‐Hinojosa +3 more
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In a 3-year microcosm study the nitrous oxide (N2O) emission from an agricultural soil amended with urea, ammonium sulphate or potassium nitrate were examined. Soil samples were taken every year to determine the soil physicochemical properties, the total
A. Castellano‐Hinojosa +3 more
semanticscholar +1 more source
Why did carbon become the pseudo-limiting factor in aquatic closed ecological systems?
Life sciences and space research, 2018Closure from the earth's atmosphere is a critical test of an ecosystem's ability to function. In our earlier testing of autotrophic Closed Ecological Systems (CESs), a C:N ratio of 26.4 (3.3 mM NaHCO3 and 0.125 mM NaNO3) supported algal and Daphnia ...
F. Taub
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Journal of the Sanitary Engineering Division, 1965
Long term life support requires the use of a closed ecological system. The attainable degree of closure is determined by the extent of conversion achieved in the waste recovery system. Organisms used in such systems must be reliable, useful, and integrable.
William J. Oswald +2 more
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Long term life support requires the use of a closed ecological system. The attainable degree of closure is determined by the extent of conversion achieved in the waste recovery system. Organisms used in such systems must be reliable, useful, and integrable.
William J. Oswald +2 more
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CLOSED ECOLOGICAL SYSTEMS: FROM THE BIOSPHERE TO LIFE SUPPORT SYSTEMS AND BACK
Вестник Российской академии наук, 2023The paper provides a brief overview of the available facts and ideas about the nature of climate change. Theproblems of ecological research, which are becoming more acute in relation to biosphere research, are considered: this is the problem of data deficit and the problem of the uniqueness of ecosystems.
S.I. Bartsev, A.G. Degermendzhi
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Carbon recycling in materially closed ecological life support systems
Biosystems, 1988Materially closed microbial ecosystems represent model life support systems for the future human habitation of space. These ecosystems when subjected to a constant energy flux seem to be reliable and self-sufficient systems for recycling of biologically produced carbon compounds.
D C, Obenhuber, C E, Folsome
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Technical review of the Laboratory Biosphere closed ecological system facility
Advances in Space Research, 2004Laboratory Biosphere is a 40 m3 closed life system that commenced operation in May 2002. Light is from 12,000 W of high pressure sodium lamps over planting beds with 5.37 m2 of soil. Water is 100% recycled by collecting condensate from the temperature and humidity control system and mixing with leachate collected from under the planting beds ...
W F, Dempster +5 more
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