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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of optimization theory and applications 19 (1976), S. 565-575 
    ISSN: 1573-2878
    Keywords: Calculus of variations ; heat transfer ; duality theory ; minimax problems ; differential equations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract A cooling fin attached to a cylinder of circular cross section is considered. We obtain sharp upper and lower estimates for the maximum heat dissipation under the constraint that the total weight of the fin should not exceed a given bound. It is assumed that the boundary of the cylinder has a constant temperature and that Newton's law of cooling holds.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-9949
    Keywords: Body mass index ; Kuwait ; Osteoarthritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Sixty-nine Kuwaiti patients with osteoarthritis (OA) were studied. Primary knee OA was seen in 65 (94.2%) patients. The mean age of this group was 53.18 years with a range of 39–97 years. The female to male ratio was 2.82∶1. OA was bilateral in 84.62% and predominantly involved the medial tibiofemoral joint. According to Kellgren's grading of knee OA, grade 1 changes were present in 40.0%, grade 2 in 32.5%, grade 3 in 22.5% and grade 4 in 5.0%. Grade I obesity was seen in 13%, grade II in 64% and grade III in 23% of patients. Generalised primary nodular OA was seen in only four patients, all of whom were women. Primary OA of the hip joint and chondrocalcinosis were conspicuous by their absence.
    Type of Medium: Electronic Resource
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