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  • 1
    Electronic Resource
    Electronic Resource
    Forced thickness-extensional trapped energy vibrations of polarized ceramic plates (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 4998-5008 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An analysis of PZT-7A plates driven into thickness-extensional trapped energy vibrations by the application of a voltage to strip electrodes is performed. The plate waves in the unelectroded region that carry energy away from the trapped mode are included in the treatment. The solution consists of a sum of the driven thickness solution and the pertinent plate eigensolutions for shorted electrodes in the electroded region and for zero surface charge in the unelectroded region. Since the sum of the solutions in each region satisfies the differential equations and boundary conditions on the major surfaces exactly, the substitution into the appropriate variational principle of linear piezoelectricity yields integral conditions across the thickness of the plate at the edge of the electrodes. The resulting system of inhomogeneous linear algebraic equations yields the response from very low frequency to slightly above the first thickness-extensional frequency of the unelectroded plate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347087
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Comments on "Ion acoustic parametric decay instability in laser-produced plasma with varying ionic charge'' [Phys. Fluids B 3, 1983 (1991)] (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 654-655 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: an algebraic error is found in Equation (1) of the paper by Mizuno et al.1 Their measured threshold is analyzed following the corrected from of Equation (1). (AIP)
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.860498
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Comment on "Parametric instabilities near the critical density on steepened density profiles'' [Phys. Fluids 26, 1888 (1983)] (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 1510-1511 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Theoretical estimates of density scale length as reported by earlier workers have been compared with those of experimental observations in laser-produced plasma experiments and the limitation of the theoretical formulations have been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859721
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Estimation of a common mean of several univariate inverse Gaussian populations (1991)
    Springer
    Annals of the Institute of Statistical Mathematics 43 (1991), S. 357-367 
    Details
    ISSN: 1572-9052
    Keywords: Inverse-Gaussian population ; Graybill-Deal type estimate ; squared error loss ; equivariant estimator ; admissibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The problem of estimating the common mean μ of k independent and univariate inverse Gaussian populations IG(μ, λ i ), i=1,..., k with unknown and unequal λ's is considered. The difficulty with the maximum likelihood estimator of μ is pointed out, and a natural estimator % MathType!MTEF!2!1!+-% feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXafv3ySLgzGmvETj2BSbqefm0B1jxALjhiov2D% aebbfv3ySLgzGueE0jxyaibaiiYdd9qrFfea0dXdf9vqai-hEir8Ve% ea0de9qq-hbrpepeea0db9q8as0-LqLs-Jirpepeea0-as0Fb9pgea% 0lrP0xe9Fve9Fve9qapdbaqaaeGacaGaaiaabeqaamaabaabcaGcba% acciGaf8hVd0MbaGaaaaa!3D38!\[\tilde \mu \] of μ along the lines of Graybill and Deal is proposed. Various finite sample properties and some decision-theoretic properties of % MathType!MTEF!2!1!+-% feaafeart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXafv3ySLgzGmvETj2BSbqefm0B1jxALjhiov2D% aebbfv3ySLgzGueE0jxyaibaiiYdd9qrFfea0dXdf9vqai-hEir8Ve% ea0de9qq-hbrpepeea0db9q8as0-LqLs-Jirpepeea0-as0Fb9pgea% 0lrP0xe9Fve9Fve9qapdbaqaaeGacaGaaiaabeqaamaabaabcaGcba% acciGaf8hVd0MbaGaaaaa!3D38!\[\tilde \mu \] are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00118641
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    Paper (German National Licenses)
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