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  • Oxford University Press  (35)
  • Blackwell Publishing Ltd  (28)
  • 2005-2009  (27)
  • 1990-1994  (36)
  • 2006  (27)
  • 1992  (36)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Papers in regional science 71 (1992), S. 0 
    ISSN: 1435-5957
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Economics
    Notes: The maximal covering location problem is based on locating p facilities in such a manner that coverage is maximized within set distance or time standards. This problem has been extended in a number of different ways where the main theme still involves locating a fixed number of facilities. In many applications site costs are not equal; this should cast doubt on the use of a constraint that fixes the number of facilities at a given number as compared to an approach that minimizes site costs and maximizes coverage. This paper addresses the use of site costs in a maximal covering location problem and presents several approaches to solutions, along with computational results. Theoretical linkages to other location models are also presented.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 655 (1992), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 653 (1992), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 653 (1992), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 57 (1992), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Thermal processing conditions [rate of temperature increase, 0.35°C or 3.5°C/min; end-point temperature (EPT), 57.2, 71.1, and 79.4°C; dwell time, 0 and 30 min; and enzyme extraction medium (deionized water, 0.9% saline, and pH 7 buffer)] affected glutamic oxalacetic transaminase (GOT; aspartate aminotransferase, E.C. 2.6.1.1) and glutamic pyruvic transaminase (GPT; alanine aminotransferase; E.C. 2.6.1.2) activity in thermal treated ground beef samples. There was greater loss of GOT activity in samples heat processed at 0.35°C/min than samples heat processed at 3.5°C/min with depletion nearly to zero between 71.1 and 79.4°C. More GOT activity was noted when samples were extracted with 0.9% saline solution. GPT activity was low in all samples and was present after heating to 79.4°C.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 8 (1992), S. 0 
    ISSN: 1467-8640
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Computer Science
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Teaching statistics 14 (1992), S. 0 
    ISSN: 1467-9639
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mathematics
    Notes: In a first course in mathematical statistics or categorical data analysis, the maximum likelihood estimators of the parameters of the multinomial distribution are often “derived” using calculus. However, the important step of verifying that the resulting estimators indeed maximize the likelihood is omitted or done incorrectly. In this paper, two simple methods of obtaining the maximum likelihood estimates are presented.
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 110 (1992), S. 0 
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: In a hydrothermally active ocean basin, vigorous hydrothermal circulation in highly permeable basement rocks maintains a nearly constant temperature at the base of the overlying accumulating sediment section. To investigate the thermal effects of sedimentation in such geological settings, we have developed a simple one-dimensional finite element model and applied it to cases in the northeast Pacific. The model accounts for differential motion of fluids and sediment grains during compaction, and can be used with any porosity-depth function. Results demonstrate clearly that the constant basal temperature of an accumulating sediment section, maintained by convective heat transfer in the basement, causes the section to remain thermally near steady state for even very high rates of accumulation, particularly when compared to conditions estimated for a section where heat is transported in the basement by conduction. A 10-kyr period of thermal recovery due to the highly diminished sediment supply during the post-Pleistocene further reduces the thermal effects of sedimentation by a significant amount. Only in rare cases where rates of accumulation exceed 10 mm yr−1 and sediment thicknesses exceed 1 km are the sea-floor heat flow and temperatures at depth diminished significantly. An example is found in Middle Valley of the Juan de Fuca Ridge, in a part of which over 2 km of sediment has accumulated in the past 200 kyr. Even in this extreme case, the heat flow is estimated to be lower than that of the steady state by about only 15 per cent. While rates of accumulation are also high in other parts of Middle Valley and in many other hydrothermally active areas, such as Guayamas Basin, Escanaba Trough and the eastern flank of the Juan de Fuca Ridge, these rates and the accumulated sediment thicknesses are found to be insufficient to cause appreciable thermal anomalies.
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Business strategy review 3 (1992), S. 0 
    ISSN: 1467-8616
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: British industry has had a turbulent decade, and it is hard to assess how far it has come over the 1980's. The BBC's Money Programme wanted to enlighten public debate on the subject, and commissioned London Business School researchers to furnish them with as much data as possible. This article catalogues the data and summarises many arguments of interpretation around it.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of metamorphic geology 10 (1992), S. 0 
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Extensive examination of large numbers of spatially orientated thin sections of orientated samples from orogens of all ages around the world has demonstrated that porphyroblasts do not rotate relative to geographical coordinates during highly non-coaxial ductile deformation of the matrix subsequent to their growth. This has been demonstrated for all tectonic environments so far investigated. The work also has provided new insights and data on metamorphic, structural and tectonic processes including: (1) the intimate control of deformation partitioning on metamorphic reactions; (2) solutions to the lack of correlation between lineations that indicate the direction of movement within thrusts and shear zones, and relative plate motion; and (3) a possible technique for determining the direction of relative plate motion that caused orogenesis in ancient orogens.
    Type of Medium: Electronic Resource
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