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  • 1985-1989  (3)
  • 1985  (3)
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  • 1985-1989  (3)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Ultrastructural alterations on chloride cells of the yellowtail Seriola quinqueradiata, following exposure to the red tide species Chattonella antiqua (1985)
    Springer
    Marine biology 88 (1985), S. 101-108 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract By means of scanning and transmission electron microscopy, the influence of the red tide species Chattonella antiqua was examined with respect to the surface ultrastructures of chloride cells of the yellowtail Seriola quinqueradiata. Conspicuous ultrastructural alterations occurred on the apical surface of these cells. The majority of chloride cells in the control gills showed an apical surface with numerous cellular extensions, while more than half the chloride cells affected by red tide organisms exhibited an apical surface with fewer and smaller extensions, a wrinkled apical surface, or a protruded apical surface. These ultrastructural alterations of chloride cell surface may be due to the partial disturbance of salinity by C. antiqua, and reflect the changes of the ion-transport function in yellowtail gills exposed to red tide water.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00393048
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Transformation of yttria partially stabilized zirconia by low temperature annealing in air (1985)
    Springer
    Journal of materials science 20 (1985), S. 1466-1470 
    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 tetragonal-to-monoclinic phase transformation of yttria partially stabilized zirconia by low temperature annealing in air was investigated in the temperature range 100 to 650° C using a sintered body of zirconia containing 2 to 4 mol% Y2O3. The amount of monoclinic phase formed was maximum at about 200° C. Both the decrease in grain size and increase in the yttria concentration were effective in decreasing the critical temperature below which the monoclinic phase was formed. The relationship between the critical temperature (T c) and the grain size was experimentally determined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01026344
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Control of the tetragonal-to-monoclinic phase transformation of yttria partially stabilized zirconia in hot water (1985)
    Springer
    Journal of materials science 20 (1985), S. 3988-3992 
    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 tetragonal-to-monoclinic phase transformation of yttria partially stabilized zirconia caused by annealing in hot water was investigated in the temperature range 80 to 200° C using sintered bodies in zirconia containing 2, 3 and 4 mol % Y2O3. Three approaches, alloying ZrO2(Y2O3) with 0 to 20wt% CeO2, dispersing 0 to 40 wt % Al2O3 into ZrO2(Y2O3) ceramics and decreasing the grain size of zirconia, were examined to inhibit the tetragonal-to-monoclinic phase transformation. The amount of monoclinic phase formed decreased with increasing concentrations of CeO2 alloyed and Al2O3 dispersed, and with decreasing grain size of zirconia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00552389
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    Paper (German National Licenses)
    Fulltext
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