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  • 1990-1994  (3)
  • 1980-1984  (2)
  • Engineering General  (3)
  • Mice  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 238 (1983), S. 217-223 
    ISSN: 1434-4726
    Keywords: Kanamycin ; Cochlea damage ; Audiogenic seizures ; Sensitive period for ototoxicity ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The ototoxicity of kanamycin was investigated in mice treated with the drug either from 6 to 9, 10 to 13, or 15 to 18 days of age. The results showed extensive damage to the outer-hair-cell (OHC) receptors of the cochlea in the 10–13-day group; some less severe damage to the OHC was found in the 6–9-day group, and little damage was observed in the 15–18 day group. The present finding is consistent with the view that the mouse cochlea is most vulnerable to the ototoxic effect of kanamycin during the period of its rapid development, i.e., between 10 and 13 days of age.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 232 (1981), S. 215-220 
    ISSN: 1434-4726
    Keywords: Ototoxizität ; Kanamycin ; Empfindlichkeit ; Maus ; audiogene Anfälle ; Ototoxicity ; Kanamycin ; Sensitive period ; Mice ; Audiogenic seizures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary It has been found that administration of kanamycin (400 mg/kg daily) for 5 days was highly effective in inducing susceptibility to audiogenic seizures in BALB/c mice, if the drug was administered between the age of 10–14 postnatal days. The same drug dosage administered between the age of 5–9, 15–19, or 20–24 postnatal days was found to be ineffective. Since induction of seizure susceptibility is highly correlated with the degree of cochlear damage produced by either ototoxic drugs or noise, it was suggested that the age of 10–14 postnatal days could be the most sensitive period for the ototoxic effect of kanamycin.
    Notes: Zusammenfassung Kanamycin in einer Dosis von 400 mg/kg täglich über 5 Tage bewirkt eine deutliche Empfindlichkeitssteigerung für audiogene Anfälle bei BALB/c-Mäusen, wenn das Medikament zwischen 10. und 14. postnatalem Tag verabreicht wird. Kanamycin in gleicher Dosis hat aber keinen Effekt, wenn es zwischen 5.–9., 15.–19. oder 20.–24. postnatalem Tag gegeben wird. Da die Erhöhung der Anfälligkeit für audiogene Anfälle einen deutlichen Zusammenhang mit dem Grad von Cochleaschaden durch ototoxische Medikamente oder Lärm hat, wird angenommen, daß der 10.–14. postnatale Tag die empfindlichste Periode für den ototoxischen Effekt des Kanamycins darstellt.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 12 (1991), S. 369-382 
    ISSN: 0271-2091
    Keywords: Turbulence ; Recirculating flow ; 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: This investigation deals with the modification of streamline curvature effects in the k-ε turbulence model for the case of recirculating flows. Based upon an idea that the modification of curvature effects in C2 should not be made in regions where the streamline curvature is small, a hybrid k-ε model extended from the modification originally proposed by Srinivasan and Mongia is developed. A satisfactory agreement of model predictions with experimental data reveals that the hybrid k-ε model can perform better simulation of recirculating turbulent flows.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 15 (1992), S. 233-245 
    ISSN: 0271-2091
    Keywords: Two-phase flow ; Pressure-velocity coupling ; Transient flow ; Turbulent dispersion ; 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: This paper presents a non-iterative numerical technique for computing time-dependent gas-droplet flows. The method is a fully interacting combination of Eulerian fluid and Lagrangian particle calculations. The interaction calculations between the two phases are formulated on a pressure-velocity-coupling procedure based on the operator-splitting technique. This procedure eliminates the global iterations required in the conventional particle-source-in-cell (PSIC) procedure. Turbulent dispersion calculations are treated by a stochastic procedure. Numerical calculations and comparisons with available experimental data as well as efficiency assessments are given for some sprays typical of spray combustion applications.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 19 (1994), S. 981-995 
    ISSN: 0271-2091
    Keywords: Pressure-based method ; All-speed ; Blast wave ; Two-phase flow ; Combustion instability ; 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: An improved pressure-based method has been applied to predict the two-dimensional instability analysis of liquid-fuelled rocket engines. This method is non-iterative for transient flow calculations and applicable to all-speed flows. Validation cases include the shock-tube problem, the blast flow field and unsteady spraycombusting flows. Computations for the combustion instability analysis were carried out for various combustion parameters such as spray initial conditions and combustor geometries. Unsteady behaviours of the stable and unstable spray flame fields and effects of acoustic oscillations on the fuel droplet vaporization and combustion process are studied in detail. The present numerical model successfully demonstrates the capability of predicting combustion instability as well as fast transient compressible flows at all speeds.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
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