Results 201 to 210 of about 10,500,451 (249)
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Microbial and higher plant biomass selection for closed ecological systems
Acta Astronautica, 1992A selection of higher plants and microbial strains is presented with its rationale in order to progressively regenerate food from waste in future space and planetary missions.
C Tamponnet
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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 ...
J P Allen +2 more
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Eucaryote/procaryote ratio as an indicator of stability for closed ecological systems
BioSystems, 1983The eukaryote/prokaryote ratio permits immediate and direct estimation of ecological stability in closed microbial ecosystems as well as in natural systems. Previous research demonstrated partial pressure of oxygen can be used as a long term indicator of stability (Kearns and Folsome , 1981).
D C, Obenhuber, C E, Folsome
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Pressure, O2, and CO2, in aquatic Closed Ecological Systems
Advances in Space Research, 2013Abstract Pressure increased during net photosynthetic O2 production in the light and decreased during respiratory O2 uptake during the dark in aquatic Closed Ecological Systems (CESs) with small head gas volumes. Because most CO2 will be in the liquid phase as bicarbonate and carbonate anions, and CO2 is more soluble than O2, volumes of gaseous CO2 ...
Frieda Taub, Anna McLaskey
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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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Journal of Biological Education, 1994
Closed Ecological Systems (CES), i.e. biological systems closed to material but open to energy exchange, have been unexplored as biological tools. Only the investigations of bioregenerative Life Support systems For space missions have created some activity. However, these systems also have enormous potential applications on Earth.
Christian Tamponnet, Christopher Savage
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Closed Ecological Systems (CES), i.e. biological systems closed to material but open to energy exchange, have been unexplored as biological tools. Only the investigations of bioregenerative Life Support systems For space missions have created some activity. However, these systems also have enormous potential applications on Earth.
Christian Tamponnet, Christopher Savage
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Computer modeling of the biotic cycle formation in a closed ecological system
Advances in Space Research, 2001The process of biotic turnover in a closed ecological system (CES) with an external energy flow was analyzed by mathematical modeling of the biotic cycle formation. The formation of hierarchical structure in model CESs is governed by energy criteria.
A V, Brilkov +3 more
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The legacy of biosphere 2 for the study of biospherics and closed ecological systems
Advances in Space Research, 2003The unprecedented challenges of creating Biosphere 2, the world's first laboratory for biospherics, the study of global ecology and long-term closed ecological system dynamics, led to breakthrough developments in many fields, and a deeper understanding of the opportunities and difficulties of material closure. This paper will review accomplishments and
J P, Allen, M, Nelson, A, Alling
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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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