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  • 1980-1984  (3)
Document type
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Particle adhesion and removal in model systems. 10. Effect of chelating species on the hematite/steel system (1984)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 88 (1984), S. 420-424 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j150647a020
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Macromers by carbocationic polymerization (1982)
    Springer
    Polymer bulletin 8 (1982), S. 63-67 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The validity of the copolymer composition equation for the copolymerization of macromers with small monomers for the preparation of graft copolymers has been examined. The reactivity ratios of high molecular weight macromers r1 cannot be determined experimentally with sufficient accuracy whereas those of small monomers r2 may be calculated by r2=ln(1-p2)/ ln(1-p1), where p1 and p2 are the respective conversions of the macromer and small monomer. A single experimental datum obtained even at high conversions may be used. The error of the method can be readily calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00263009
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Quantitative regional analysis of Chu Chiang Delta area of South China using landsat images (1982)
    Springer
    GeoJournal 6 (1982), S. 231-240 
    Details
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract The use of remote sensing from a satellite such as Landsat is advocated as a suitable tool to re-vitalize the development of regional geography through the method of quantitative regional analysis. To demonstrate the technique, Chu Chiang Delta in South China is employed as an example. Land use/land cover data are extracted from Landsat images and other environmental data such as soils, clilogy, climate and population density are also obtained from other sources so that they all integrate together on one common base — the picture element (pixel) of a Landsat scene. A manageable number of pixels is combined to produce suitable-sized cells for data storage and classification at the scale of 1:1,000,000. A clustering algorithm is employed to classify these cells by computer. The value of Landsat images lies in its ability to give consistent coverage of an area and to produce such a realistic view of the terrestrial environment that the characteristic of verbal description in regional geography can be cut down to a minimum. Through a quantitative approach, the interactions of different environmental features in shaping the development of a region can be more easily comprehended. The proposed approach can lead to the development of an information system which has practical value in providing information required for the development of the agriculturally important Chu Chiang Delta area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00210655
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    Paper (German National Licenses)
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