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  • Articles  (4)
  • Articles: DFG German National Licenses  (4)
  • optimization
  • 1985-1989  (4)
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  • Energy, Environment Protection, Nuclear Power Engineering  (4)
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  • Articles  (4)
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  • Articles: DFG German National Licenses  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Human ecology 14 (1986), S. 415-435 
    ISSN: 1572-9915
    Keywords: prehistoric hunting ; optimization ; Tehuacan Valley
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract Previous analyses of faunal remains from highland Mesoamerican sites have viewed implied changes in animal exploitation patterns as a secondary consequence of early agricultural practices. This paper argues that faunal data from the Tehuacan Valley, when interpreted within an optimization framework provide evidence for the alteration of optimal meat harvesting strategies through time by communities responding to a variety of socioenvironmental factors: seasonal and long-term availability of game, access to domestic meat resources, human meat demand levels, and scheduling constraints.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of fusion energy 4 (1985), S. 315-319 
    ISSN: 1572-9591
    Keywords: optimization ; SENRI ; blanket ; tritium ; breeding ; energy multiplication ; molten salt ; nonbreeding ; hybrid ; support ratio
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Neutronic calculations were performed to optimize the SENRI blanket in terms of energy multiplication as well as tritium breeding ratio. The blanket employs a thick (∼ 64-cm) Li layer as breeder/coolant. Three approaches were taken here to achieve the goal: (1) reduction of6Li in the lithium, (ii) replacement of the Li layer by a molten-salt (flibe) layer, and (iii) shipment of excess tritium to a nonbreeding blanket. It was found that the excess tritium produced in the SENRI blanket could be used effectively to obtain additional power by fueling a nonbreeding D-T reactor.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of fusion energy 4 (1985), S. 389-394 
    ISSN: 1572-9591
    Keywords: D-D reactor ; optimization ; blanket/shield ; SWAN ; energy gain ; atomic displacement ; perturbation theory ; D2O coolant ; neutron multiplier
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Position-dependent optimization calculations have been carried out on a D-D fusion reactor blanket/shield to maximize the energy gain in the blanket and to minimize the atomic displacement rate of the copper stabilizer in the superconducting magnet. The results obtained by using the optimization code SWAN indicate (1) the advantage of D2O coolant over H2O coolant with respect to increasing the energy gain, and (2) the difference in the optimal shield distributions between D-T and D-D neutron sources. The possibility of improving both the energy gain and radiation shielding characteristics is also discussed.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Human ecology 13 (1985), S. 485-510 
    ISSN: 1572-9915
    Keywords: hunting ; game depletion ; optimization ; ritual ; tortoises
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract Several investigators cite population control, frequent settlement relocation, trekking, expansion of diet breadth, and food taboos as strategic responses to game depletion by indigenous populations living in interfluvial zones of lowland South America. The Ka'apor Indians of the interfluvial forest of northern Maranhão, Brazil, employ other means of optimizing hunting efficiency, partly based on ritual. Menstruating women, pubescent girls, and parents of newborns can consume meat only of the tortoise (Gochelone denticulata), the first prey species to be hunted out of an area. Tortoise capture requires, on average, one full day of hunting. This means that the full potential of hunting pressure does not materialize near the settlement. Meat productivity is unusually high even near old settlements. I argue that ritual tortoise hunting helps to regulate environmental utilization, to maintain a sustained yield of meat protein, and to expand the catchment area gradually.
    Type of Medium: Electronic Resource
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