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  • 66.30.Jt  (1)
  • 81.30Mh  (1)
  • Anaesthetics  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Au diffusion in α-Ti (1994)
    Springer
    Applied physics 58 (1994), S. 453-457 
    Details
    ISSN: 1432-0630
    Keywords: 66.30.−h ; 66.30.Jt ; 61.80.Jh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The solubility and diffusion of Au in α-Ti have been studied in a 823–1023 K temperature range using the Rutherford backscattering technique. For this purpose we have implanted Au into α-Ti samples. Our results show that the solubility of Au varies between 0.2 and 0.35 at.%. In addition, we found that the diffusion coefficients follow a normal Arrhenius behavior with Q=260 kJ/mol and D o=1.9×10−5 m2/s1. These values are typical for a substitutional diffusion mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00332436
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    He and Ar post-bombardment effects on carbonitrides formed in a Cr-rich steel (1990)
    Springer
    Applied physics 51 (1990), S. 476-480 
    Details
    ISSN: 1432-0630
    Keywords: 76.80+y ; 79.20m ; 81.30Mh
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The effects of He and Ar bombardment on carbon produced in a N-implanted Cr-rich steel are studied by means of conversion electron Mössbauer spectroscopy, glancing X-ray and nuclear reaction analysis techniques. The results show two main features: dissolution and reprecipitation of the produced carbonitrides and modification of the thermal behavior of the precipitates. Comparison with similar experiments performed on Fe and on low-carbon steel show that the matrix composition plays an important role in the above processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324729
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Work in operating rooms and pregnancy outcome among nurses (1994)
    Springer
    International archives of occupational and environmental health 66 (1994), S. 235-241 
    Details
    ISSN: 1432-1246
    Keywords: Work in operating rooms ; Anaesthetics ; Spontaneous abortion ; Birth defects ; Nurses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this study was to analyse the relationship between work in an operating room and pregnancy outcome, as described by the rates of spontaneous abortion and of birth defects. The population comprised the female nurses of 17 hospitals in Paris, interviewed in 1987–1989. An exposed group included all operating room nurses, and a control group was composed of female nurses in other departments matched by hospital, age and duration of service. Each woman described all prior pregnancies. In total, 776 pregnancies were described by 418 nurses who were first pregnant in 1970 or thereafter; ectopic pregnancies, those terminated by voluntary induced abortion and those leading to multiple births were excluded. The rate of spontaneous abortion was significantly higher for pregnancies during which women worked in an operating room than for the other pregnancies. Birth defects were not significantly related to work in an operating room during pregnancy. These results are in agreement with others showing a significant relationship between occupational exposure to operating rooms and spontaneous abortion, although identification of the responsible factor remains difficult. They suggest that effective ventilating systems should be installed in all operating rooms and that special preventive measures must be taken for women of childbearing age.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00454361
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    Paper (German National Licenses)
    Fulltext
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