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  • 1990-1994  (2)
  • 1960-1964
  • 1955-1959
  • 1925-1929
  • TNO Landolt C optotype  (1)
  • existence  (1)
  • 1
    Electronic Resource
    Electronic Resource
    The determination of the central static visual acuity (1992)
    Springer
    Documenta ophthalmologica 82 (1992), S. 9-14 
    Details
    ISSN: 1573-2622
    Keywords: Pro Oculis ; TNO Landolt C optotype ; Wall-charts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In identical experimental situations we tested 22 adults with our proposed Landolt C wall-chart and the so-called TNO Landolt-C chart. Contrary to theoretical expectations, it appeared that there was only a slight difference in the measured visual acuities. Further study will show whether this is an incidental or a structural occurrence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00156987
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Functional and numerical solution of a control problem originating from heat transfer (1991)
    Springer
    Journal of optimization theory and applications 68 (1991), S. 49-73 
    Details
    ISSN: 1573-2878
    Keywords: Nonlinear parabolic equations ; functional analysis ; existence ; uniqueness ; control problems ; Newton's method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The solution of a nonlinear parabolic equation is studied from both the functional and the numerical points of view. Existence, uniqueness, and stability results are given. A boundary-control problem is then presented. Expressions of the gradient and the Hessian of the cost function are given with some details, and the Newton method is compared with a gradient method and the Fletcher-Reeves method. Numerical results are given. The paper concludes with a discussion of the advantages of the Newton method as applied to a control problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00939935
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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