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  • EARTH RESOURCES AND REMOTE SENSING  (2)
  • Chemostat culture  (1)
  • 1975-1979  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Glucose catabolism by Thiobacillus A2 grown in chemostat culture under carbon or nitrogen limitation (1979)
    Springer
    Archives of microbiology 122 (1979), S. 307-312 
    Details
    ISSN: 1432-072X
    Keywords: Thiobacillus A2 ; Radiorespirometry ; Chemostat culture ; Glucose metabolism ; Multiple metabolic pathways ; Metabolic regulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Thiobacillus A2 was grown in glucose- or ammonium-limited chemostats and relative contributions of the Embden-Meyerhof (EM), Entner-Doudoroff (ED) and pentose phosphate (PP) pathways to glucose catabolism estimated by 14C-glucose radiorespirometry. In fast growing strain GFI, the EM pathway predominated (41–79%) under all growth conditions with the PP pathway contributing 18–30%. The ED pathway was apparently absent under some conditions of glucose limitation. In contrast, wild type Thiobacillus A2 exhibited predominance of the EM pathway (43–48%) under ammonium-limitation but apparent predominance of the PP pathway (43–55%) under glucose-limitation, although all three pathways were calculated to operate. Under some conditions of glucose limitation the EM pathway was possibly considerably depressed. No clear pattern of response of the three pathways to altered environmental conditions could be deduced, although marked change in pathway activities were obviously induced. Growth yield was apparently unaffected by variation in pathways. The problems of interpreting such complex radiorespirometric data are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00411296
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Cost benefit analysis of the transfer of NASA remote sensing technology to the state of Georgia (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The author has identified the following significant results. First order benefits can generally be quantified, thus allowing quantitative comparisons of candidate land cover data systems. A meaningful dollar evaluation of LANDSAT can be made by a cost comparison with equally effective data systems. Users of LANDSAT data can be usefully categorized as performing three general functions: planning, permitting, and enforcing. The value of LANDSAT data to the State of Georgia is most sensitive to the parameters: discount rate, digitization cost, and photo acquisition cost. Under a constrained budget, LANDSAT could provide digitized land cover information roughly seven times more frequently than could otherwise be obtained. Thus on one hand, while the services derived from LANDSAT data in comparison to the baseline system has a positive net present value, on the other hand if the budget were constrained, more frequent information could be provided using the LANDSAT system than otherwise be obtained.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E78-10076 , NASA-CR-151615
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Cost benefit assessment of NASA remote sensing technology transferred to the State of Georgia (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The benefits involved in the transfer of NASA remote sensing technology to eight Georgia state agencies are identified in quantifiable and qualitative terms, and a value for these benefits is computed by means of an effectiveness analysis. The benefits of the transfer are evaluated by contrasting a baseline scenario without Landsat and an alternative scenario with Landsat. The net present value of the Landsat technology being transferred is estimated at 9.5 million dollars. The estimated value of the transfer is most sensitive to discount rate, the cost of photo acquisition, and the cost of data digitalization. It is estimated that, if the budget is constrained, Landsat could provide data products roughly seven times more frequently than would otherwise be possible.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: SOUTHEASTCON ''78; Proceedings of the Southeast Region 3 Conference; Apr 10, 1978 - Apr 12, 1978; Atlanta, GA
    Format: text
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    NASA TECHNICAL REPORTS
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