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  • 1
    Electronic Resource
    Electronic Resource
    Mechanism of ketol acid reductoisomerase. Steady-state analysis and metal ion requirement (1989)
    s.l. : American Chemical Society
    Biochemistry 28 (1989), S. 486-493 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00428a012
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    Paper (German National Licenses)
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  • 2
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    Effects of a Television and Radio Advertising Ban: A Study of the Cigarette Industry (1986)
    New York : Periodicals Archive Online (PAO)
    Journal of marketing. 50:4 (1986:Oct.) 219 
    Details
    ISSN: 0022-2429
    Topics: Economics
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:3142-1986-050-04-000007
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  • 3
    Electronic Resource
    Electronic Resource
    Turn-on delay of a Josephson junction (1989)
    Springer
    Journal of low temperature physics 74 (1989), S. 407-415 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An attempt has been made to give a new definition of turn-on delay of a Josephson junction which differs from earlier works. On the basis of our definition, an analytical expression of turn-on delay has been developed. This analytical model is based on a concept inherently different from those of Harris and McDonaldet al. It is observed that based on our model, the analytical expression of McDonaldet al. can also be obtained. A comparative study between our turn-on delay and those of Harris and McDonaldet al. is also made. It is expected that our definition and analytical expression of turn-on delay will eliminate the drawbacks and confusions of earlier investigations. The present work will find use in critically ascertaining the switching speed of Josephson analogs and digital circuits.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00682666
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Computation of turbulent asymmetric trailing-edge flows (1986)
    Springer
    Zeitschrift für angewandte Mathematik und Physik 37 (1986), S. 53-63 
    Details
    ISSN: 1420-9039
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Description / Table of Contents: Zusammenfassung Die Methode der finiten Elemente in verallgemeinerten Koordinaten mit „time-split“ wird benützt, um die kompressible Strömung an einer unsymmetrischen Hinterkante zu berechnen. Das Turbulenz-Modell benützt eine zeitverzögerte algebraische turbulente Zähigkeit. Der Testfall ist eine Strömung mit der nominellen Machzahl 0.4 und der Reynoldszahl 26.2×106. Mittlere Geschwindigkeitsprofile und die Verteilung der Verdrängungsdicke stimmen mit den experimentellen Resultaten gut überein. Der Druck und die Wandschubspannung zeigen eine vernünftige Übereinstimmung mit den experimentellen Werten, mit Ausnahme der Umgebung der „Schulter“ auf der Oberseite.
    Notes: Abstract Turbulent compressible flow past an asymmetric trailing edge has been computed using the generalised-coordinate time-split group finite-element method and a lagged algebraic eddy viscosity turbulence model. The test case considered is that of a flow at a nominal Mach number of 0.4 and a Reynolds number of 26.2×106. Mean velocity profiles and the displacement thickness distribution are in good agreement with the experimental results. The pressure and surface shear stress indicate reasonable agreement with the experimental results, except near the shoulder on the upper surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00955518
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  • 5
    Electronic Resource
    Electronic Resource
    Irrigation studies on watermelon (Citrullus lanatus (Thunb) Matsum et Nakai) (1989)
    Springer
    Irrigation science 10 (1989), S. 293-301 
    Details
    ISSN: 1432-1319
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field experiments carried out on watermelon at the Indian Institute of Horticultural Research, Bangalore, during 1984 and 1985 indicate that frequen irrigations with 100% evaporation replenishment result in highest fruit yield, dry matter production, total soluble solids, sugars, NO3-N, N, P, K, Ca, Mg uptake and higher water use efficiency. However, yield differences were only statistically significant during 1985. Drip irrigation with 1 emitter per 2 plants produced the highest yield and water use efficiency as compared to other irrigation treatments. Dry matter, total soluble solids, sugars, NO3-N, N, P, K, Ca, Mg uptake and WUE under drip irrigation were higher than under furrow irrigation treatments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00257494
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  • 6
    Electronic Resource
    Electronic Resource
    Physical properties of mixed crystals of alkali halides (1986)
    Springer
    Journal of materials science 21 (1986), S. 4117-4130 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The physical properties of mixed crystals of alkali halides are reviewed. The properties considered are experimentally determined quantities like the lattice constants, the compressibility, the elastic constants, thermal expansion, specific heats, Debye-Waller factors, dielectric constant, refractive index, IR spectra and Raman spectra and also some calculated solid-state parameters like Debye temperatures and lattice energies. A critical analysis of composition dependence shows four groups designated as follows: Type A, properties which vary linearly with composition; Type B, properties which vary slightly non-linearly with composition; Type C, properties which depend highly non-linearly on composition with the values for mixed crystals exceeding the values for end members; and Type D, properties which are peculiar to the mixed crystals and are not shown by the parent crystals. Most of the physical properties belong to Types A or B. Variation of Type C is shown only by properties affected by differences in ion size like the Debye-Waller factor and the microhardness. Properties which are symmetry-dependent like the first-order Raman spectrum and the IR spectra are of Type D. Attention is drawn to areas where further work is needed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01106517
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    A three-level generalized-co-ordinate group finite-element method for compressible viscous flow (1985)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 5 (1985), S. 463-481 
    Details
    ISSN: 0271-2091
    Keywords: Trailing-edge Flow ; Laminar Flow ; Turbulent Flow ; Generalized Co-ordinates ; Group Finite-element Method ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A consistent three-level time-split group finite-element method, suitable for the computation of viscous compressible flows in irregular geometric domains, is described. Exploitation of the group12 formulation permits an accurate and economical algorithm to be developed in a generalized-co-ordinate (ζ,η) space. A variable sweep cycle is used to accelerate convergence to the steady state. The method is demonstrated by computing laminar and turbulent flow past a trailing edge. The method uses an algebraic eddy viscosity model to represent turbulence and produces results in close agreement with the experiments and computations of Viswanath et al8.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650050506
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