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  • *Aging/metabolism/physiology/psychology  (1)
  • Electromagnetic nondestructive evaluation (NDE)  (1)
  • American Association for the Advancement of Science (AAAS)  (1)
  • Springer  (1)
  • Cell Press
  • Periodicals Archive Online (PAO)
  • 1985-1989  (2)
  • 1965-1969
Collection
Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (1)
  • Springer  (1)
  • Cell Press
  • Periodicals Archive Online (PAO)
Years
  • 1985-1989  (2)
  • 1965-1969
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of nondestructive evaluation 7 (1988), S. 3-14 
    ISSN: 1573-4862
    Keywords: Electromagnetic nondestructive evaluation (NDE) ; crack detection ; eddy currents ; boundary integral equations ; boundary element method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: Abstract An introduction to the application of surface integral equation methods to the calculation of eddy current-flaw interactions is presented. Two two-dimensional problems are presented which are solved by the boundary integral equation method. Application of collocation methods reduces the problems to systems of linear algebraic equations. The first problem is that of a closed surface crack in a flat slab with an AC magnetic field parallel to the plane of the crack. The second is that of av-groove crack in the AC field of a pair of parallel wires placed parallel to the vertex of the crack. In both cases, maps of the current densities at the surface are displayed, as well as the impedance changes due to the cracks.
    Type of Medium: Electronic Resource
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  • 2
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1987-07-10
    Description: Research in aging has emphasized average age-related losses and neglected the substantial heterogeneity of older persons. The effects of the aging process itself have been exaggerated, and the modifying effects of diet, exercise, personal habits, and psychosocial factors underestimated. Within the category of normal aging, a distinction can be made between usual aging, in which extrinsic factors heighten the effects of aging alone, and successful aging, in which extrinsic factors play a neutral or positive role. Research on the risks associated with usual aging and strategies to modify them should help elucidate how a transition from usual to successful aging can be facilitated.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rowe, J W -- Kahn, R L -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):143-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3299702" target="_blank"〉PubMed〈/a〉
    Keywords: Aged ; Aged, 80 and over ; *Aging/metabolism/physiology/psychology ; Carbohydrate Metabolism ; Cognition ; Cross-Sectional Studies ; Grief ; Health Promotion ; Health Services for the Aged ; Humans ; Longitudinal Studies ; Osteoporosis/physiopathology ; Patient Acceptance of Health Care ; Reference Values ; Social Support ; Volition
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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