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  • Chemistry  (2)
  • EARTH RESOURCES AND REMOTE SENSING  (2)
  • Bird distributions  (1)
  • Species co-occurrence  (1)
Collection
Keywords
Publisher
Years
  • 1
    Electronic Resource
    Electronic Resource
    Methods for detecting non-randomness in species co-occurrences: a contribution (1987)
    Springer
    Oecologia 73 (1987), S. 579-582 
    Details
    ISSN: 1432-1939
    Keywords: Species co-occurrence ; Bird distributions ; Null models ; Neutral models ; Community structure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Comparison of co-occurrences between species on a group of islands with those expected from a randombased null model could provide evidence on community structure. However, it is difficult to decide on the appropriate null model. Gilpin and Diamond proposed a model and a test for departure from it, but this test is shown to indicate significant structure even when applied to a matrix of random numbers. An alternative method is suggested, using the distribution of Gilpin and Diamond's deviation as test statistic, but determining the expected distribution by Monto Carlo simulation, and using many such simulations as a randomisation test of significance. The null model used accepts the observed totals of occurrences for islands and species; it therefore offers a somewhat conservative test. Applied to the Vanuatu bird data that Gilpin and Diamond used, significant departure from a null model is seen, but with an excess of extreme negative associations, the opposite result from that given by Gilpin and Diamond's method. It is not possible to tell whether the negative associations are due to autecology, biogeography, or to interactions between species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00379419
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Computer simulation of a rotary dryer. Part II: Heat and Mass Transfer (1986)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 32 (1986), S. 269-275 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A computer model of a single-pass, rotary-drum dryer with or without a centerfill flighting section, describes the drying behavior of wood particles within the drum. This part of a two-part study examines heat and mass transfer, which are shown to be partly dependent on the pattern of particle flow and on retention time. Comparison of simulation results with drying data based on moisture content of outlet particles from a large-scale rotary dryer was favorable, with a root mean square error of 22.2%.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690320214
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Computer simulation of a rotary dryer. Part I: Retention time (1986)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 32 (1986), S. 263-268 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A computer model of a single-pass, rotary-drum dryer with or without a center-fill flighting section, describes the drying behavior of wood particles within the drum. This part of a two-part study examines retention time; the second part incorporates heat and mass transfer for the complete drying model. Simulation results with retention time data from a large-scale rotary dryer showed a favorable comparison, with a root mean square error of 14.2%.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690320213
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    Paper (German National Licenses)
    Fulltext
  • 4
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    Unknown
    Satellite on-board processing for earth resources data (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Results of a survey of earth resources user applications and their data requirements, earth resources multispectral scanner sensor technology, and preprocessing algorithms for correcting the sensor outputs and for data bulk reduction are presented along with a candidate data format. Computational requirements required to implement the data analysis algorithms are included along with a review of computer architectures and organizations. Computer architectures capable of handling the algorithm computational requirements are suggested and the environmental effects of an on-board processor discussed. By relating performance parameters to the system requirements of each of the user requirements the feasibility of on-board processing is determined for each user. A tradeoff analysis is performed to determine the sensitivity of results to each of the system parameters. Significant results and conclusions are discussed, and recommendations are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-137758
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Unknown
    Satellite on-board processing for earth resources data (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The feasibility was investigated of an on-board earth resources data processor launched during the 1980-1990 time frame. Projected user applications were studied to define the data formats and the information extraction algorithms that the processor must execute. Based on these constraints, and the constraints imposed by the available technology, on-board processor systems were designed and their feasibility evaluated. Conclusions and recommendations are given.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-137757
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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