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  • 2000-2004  (1)
  • 1995-1999  (3)
  • 2004  (1)
  • 1997  (3)
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  • 2000-2004  (1)
  • 1995-1999  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Observation of Heat Cycle Delamination Process with Surface Strain Measurement in Thermal Barrier Coating (2004)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 261-263 (Apr. 2004), p. 453-458 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A surface strain measurement approach to understanding of delamination processes of thermal barrier coatings (TBCs) under heat cycle conditions was described in this paper. Heat cycle tests between the high temperature ranged from 1473K to 1073K and the relatively low temperature (573K) was carried out on thermal barrier coated type 304 stainless steel specimens. 8mass%Y〈sub〉〈/sub〉2O〈sub〉〈/sub〉3-ZrO〈sub〉〈/sub〉2 and Al〈sub〉〈/sub〉2O〈sub〉〈/sub〉3 coatings were used for the TBCs. The surface strain behavior during the heat cycle test was measured using a laser speckle strain/displacement gauge (SSDG). It was found that the thermal expansion of a substrate was almost reflected on a surface strain if a delamination wasn't initiated, while the value of a surface strain decreased to the value of the thermal expansion of a ceramics-coating if the delamination of the ceramics-coating was initiated. The state of a subsurface delamination was able to be nondestructively inferred by the surface strain behavior. The delamination life of a ceramics-coating in the specimen with a low-pressure-plasma-sprayed (LPPS)bond-coating was found to be longer than that with an atmospheric-plasma-sprayed (APS) bond-coating. The large roughness of a bond-coating was also found to be effective in improving the delamination life of a ceramics-coating owing to the restriction of a crack propagation parallel to the interface between the ceramics-coating and the bond-coating
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/47/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.261-263.453.pdf
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Ductoplasty for an aberrant hepatic duct in a choledochal cyst (1997)
    Springer
    Pediatric surgery international 12 (1997), S. 618-619 
    Details
    ISSN: 1437-9813
    Keywords: Ductoplasty ; Anatomic variation ; Biliary reconstruction ; Choledochal cyst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The confluence of the right and left hepatic ducts at the hepatic hilum frequently shows normal anatomic variations. Choledochal cysts (CC) are also accompanied by similar variations, and devices for free drainage of bile are occasionally required in biliary reconstruction. We present a CC that had an aberrant posterior branch of the right hepatic duct draining into the distal common hepatic duct. A capacious hepaticoduodenostomy at the hilum was performed after joining the hilar and aberrant ducts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01371914
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Ductoplasty for an aberrant hepatic duct in a choledochal cyst (1997)
    Springer
    Pediatric surgery international 12 (1997), S. 618-619 
    Details
    ISSN: 1437-9813
    Keywords: Key words Ductoplasty ; Anatomic variation ; Biliary reconstruction ; Choledochal cyst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The confluence of the right and left hepatic ducts at the hepatic hilum frequently shows normal anatomic variations. Choledochal cysts (CC) are also accompanied by similar variations, and devices for free drainage of bile are occasionally required in biliary reconstruction. We present a CC that had an aberrant posterior branch of the right hepatic duct draining into the distal common hepatic duct. A capacious hepaticoduodenostomy at the hilum was performed after joining the hilar and aberrant ducts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01371914
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Syntheses and spectroscopic pH titrations of naphthol-labeled poly(methacrylic acid)s (1997)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 48 (1997), S. 164-168 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Poly(methacrylic acid) (PMA) and poly(acrylamide) (PAAm) with a small mole fraction of naphthol (NpOH) residues were prepared by polymerization of methacrylic acid or acrylamide with three position isomers, methacryloylaminonaphthol. The substituent effect on the apparent pK values (pKobsd), determined by spectroscopic pH titrations in aqueous solution, was observed for the NpOH-labeled PAAm. The electrostatic surface potential (ψ) for PMA was calculated from the difference in the pKobsd values for the labeled PMA and PAAm. The obtained ψ value decreased as the spacing between the OH moiety and the polymer main chain increased. This clearly indicates that the ψ value is a sensitive function of the distance from the polyion surface.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1997.010480405
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    Paper (German National Licenses)
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