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  • 1
    ISSN: 1572-8099
    Keywords: Shipboard fires ; low expansion foams ; high expansion foams AFFF ; dry chemicals ; sodium bicarbonate ; potassium bicarbonate ; Monnex ; protein foam ; alcohol foam
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1939
    Keywords: 15N partitioning ; Herbivory ; Grass ; Schizachyrium scoparium ; Nitrogen allocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Nitrogen partitioning among three generations of tillers within the bunchgrass Schizachyrium scoparium var. frequens was investigated in a controlled environment as a potential mechanism of herbivory tolerance. Nitrogen-15 was transported from the labelled primary tiller generation to both shoots and roots of nondefoliated secondary and tertiary tiller generations within 24 h. Partial defoliation increased shoot nitrogen concentration of secondary and tertiary generation tillers by 110 and 120%, respectively, 24 h following defoliation. Shoot nitrogen concentration was preferentially increased by partial defoliation of tertiary generation tillers throughout the 120 h experimental period, but diminished to concentrations comparable to nondefoliated tillers within shoots of the secondary generation at 72 h. In contrast to nitrogen concentration, the total amount of nitrogen imported by secondary and tertiary generation tillers decreased 62 and 73%, respectively, 24 h following partial defoliation and did not attain values comparable to respective nondefoliated tillers. Consequently, preferential nitrogen concentration occurred in response to partial tiller defoliation without an increase in total nitrogen import based on the reduction in the total nitrogen requirement per tiller generation associated with defoliation. Estimates of both the total amount of nitrogen import and nitrogen concentration are necessary to accurately interpret the dynamics of intertiller nitrogen allocation.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Carbon allocation among bunchgrass tillers was examined with carbon-11 (11CO2) steady state labelling. Labelled carbon was continuously transported from parent tillers to anatomically attached daughter tillers at a time when morphological characteristics indicated that tiller maturation had occurred. Steady state levels of import into monitored daughter tillers increased within 30 min of either defoliation or shading. Import levels decreased within 30 min of the removal of shading, but remained accelerated throughout an 84 h observation period following defoliation. A second defoliation further increased carbon import into a monitored tiller above the previously accelerated level resulting from the initial defoliation. Carbon import by vegetative tillers in the two bunchgrass species examined may be most appropriately viewed as a series of potentially accelerated import levels above a low level of continuous import.
    Type of Medium: Electronic Resource
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  • 4
    Publication Date: 2019-06-28
    Description: The programs described were developed to process GEODYN-formatted satellite altimeter data, and to apply the processed results to predict geoid undulations and gravity anomalies of inland sea areas. These programs are written in standard FORTRAN 77 and are designed to run on the NSESCC IBM 3081(MVS) computer. Because of the experimental nature of these programs they are tailored to the geographical area analyzed. The attached program listings are customized for processing the altimeter data over the Black Sea. Users interested in the Caspian Sea data are expected to modify each program, although the required modifications are generally minor. Program control parameters are defined in the programs via PARAMETER statements and/or DATA statements. Other auxiliary parameters, such as labels, are hard-wired into the programs. Large data files are read in or written out through different input or output units. The program listings of these programs are accompanied by sample IBM job control language (JCL) images. Familiarity with IBM JCL and the TEMPLATE graphic package is assumed.
    Keywords: GEOPHYSICS
    Type: NASA-TM-100730 , REPT-89B00106 , NAS 1.15:100730
    Format: application/pdf
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