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  • 1
    Electronic Resource
    Electronic Resource
    Exact order of Hoffman’s error bounds for elliptic quadratic inequalities derived from vector-valued Chebyshev approximation (2000)
    Springer
    Mathematical programming 88 (2000), S. 223-253 
    Details
    ISSN: 1436-4646
    Keywords: Mathematics Subject Classification (1991): 90C31, 41A50, 90C47
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract. In this paper, we introduce the exact order of Hoffman’s error bounds for approximate solutions of elliptic quadratic inequalities. Elliptic quadratic inequalities are closely related to Chebyshev approximation of vector-valued functions (including complex-valued functions). The set of Chebyshev approximations of a vector-valued function defined on a finite set is shown to be Hausdorff strongly unique of order exactly 2 s for some nonnegative integer s. As a consequence, the exact order of Hoffman’s error bounds for approximate solutions of elliptic quadratic inequalities is exactly 2 -s for some nonnegative integer s. The integer s, called the order of deficiency (which is computable), quantifies how much the Abadie constraint qualification is violated by the elliptic quadratic inequalities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101070050015
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of the δ-opioid agonist, [D-Pen^2, D-Pen^5]-enkephalin, on fetal lamb EEG
    Amsterdam : Elsevier
    Pharmacology, Biochemistry and Behavior 49 (1994), S. 795-800 
    Details
    ISSN: 0091-3057
    Keywords: Behavior ; DPDPE ; EEG ; Fetus ; Naltrindole ; Opioids ; Pregnancy ; δ-Opioid receptor
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0091-3057(94)90225-9
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  • 3
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    Mixed-Fidelity Approach for Design of Low-Boom Supersonic Aircraft (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This paper documents a mixed-fidelity approach for the design of low-boom supersonic aircraft with a focus on fuselage shaping.A low-boom configuration that is based on low-fidelity analysis is used as the baseline. The fuselage shape is modified iteratively to obtain a configuration with an equivalent-area distribution derived from computational fluid dynamics analysis that attempts to match a predetermined low-boom target area distribution and also yields a low-boom ground signature. The ground signature of the final configuration is calculated by using a state-of-the-art computational-fluid-dynamics-based boom analysis method that generates accurate midfield pressure distributions for propagation to the ground with ray tracing. The ground signature that is propagated from a midfield pressure distribution has a shaped ramp front, which is similar to the ground signature that is propagated from the computational fluid dynamics equivalent-area distribution. This result supports the validity of low-boom supersonic configuration design by matching a low-boom equivalent-area target, which is easier to accomplish than matching a low-boom midfield pressure target.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: NF1676L-13466 , Journal of Aircraft; 48; 4; 1131-1135
    Format: application/pdf
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