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  • 1995-1999  (3)
  • 1965-1969  (2)
  • 1995  (3)
  • 1968  (2)
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Material
Years
  • 1995-1999  (3)
  • 1965-1969  (2)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Nonrefluxing biliary appendicoduodenostomy for choledochal cyst (1995)
    Springer
    Pediatric surgery international 10 (1995), S. 207-208 
    Details
    ISSN: 1437-9813
    Keywords: Biliary appendicoduodenostomy ; Choledochal cyst ; Appendix ; Biliary atresia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A new technique of biliary appendicoduodenostomy along with an antireflux procedure was used for the treatment of a choledochal cyst, with a satisfactory result.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00171203
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Unknown
    THE CHOICE (1968)
    London : Periodicals Archive Online (PAO)
    Survival. 10:2 (1968:Feb.) 58 
    Details
    ISSN: 0039-6338
    Topics: Political Science
    Notes: ASIAN SECURITY
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4236-1968-010-02-000009
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Microstructure of polycarbonate seen by positrons as an in-situ probe (1995)
    Springer
    Applied physics 60 (1995), S. 481-486 
    Details
    ISSN: 1432-0630
    Keywords: PACS: : 78.70.Bj; 71.60.+z; 61.41.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract.  Positron Annihilation Lifetime Spectroscopy (PALS) is used to probe the micro-structural changes in the polymer polycarbonate in terms of the changes in free volume hole size and their content as a function of temperature. The measured spectra are best fitted to three lifetime component analysis. The average hole size in the amorphous regions is determined from the measured Ortho Positronium (O-Ps) lifetime τ3 by following the treatment of Nakanishi et al. On the other hand, information about defects in the crystalline regions is revealed by trapped positrons lifetime τ2. In this polymer the average hole radius varies from 2.71 A˚ to 2.77 A˚. The present study indicates that this polymer has a glass transition temperature of 152° C. Further, we have calculated the trapping rates in the ordered and disordered regions of the polymer based on Goldanskii’s kinetic equations and an attempt is made for the first time to estimate the activation energy in the amorphous and crystalline regions separately.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538773
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Microstructure of polycarbonate seen by positrons as an in-situ probe (1995)
    Springer
    Applied physics 60 (1995), S. 481-486 
    Details
    ISSN: 1432-0630
    Keywords: 78.70.Bj ; 71.60.+z ; 61.41.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Positron Annihilation Lifetime Spectroscopy (PALS) is used to probe the micro-structural changes in the polymer polycarbonate in terms of the changes in free volume hole size and their content as a function of temperature. The measured spectra are best fitted to three lifetime component analysis. The average hole size in the amorphous regions is determined from the measured Ortho Positronium (O-Ps) lifetime τ3 by following the treatment of Nakanishi et al. On the other hand, information about defects in the crystalline regions is revealed by trapped positrons lifetime τ2. In this polymer the average hole radius varies from 2.71 Å to 2.77 Å. The present study indicates that this polymer has a glass transition temperature of 152°C. Further, we have calculated the trapping rates in the ordered and disordered regions of the polymer based on Goldanskii's kinetic equations and an attempt is made for the first time to estimate the activation energy in the amorphous and crystalline regions separately.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01538773
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    New pneumatic system with an expanded measurement limit (1968)
    Springer
    Measurement techniques 11 (1968), S. 737-741 
    Details
    ISSN: 1573-8906
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Conclusions 1. The new pneumatic system with a measurement limit of 0–600μ provides a high accuracy with a comparatively simple scheme. 2. The distinguishing feature of the new system is the possibility of changing the normal characteristic curve of the “nozzle-gate” system and thus increase the sensitivity for small gaps. The experiments show that the best results are obtained when the value of the coefficientα is approximately equal to 2.5-3 and the value of the coefficientß, 2–2.5. 3. The new pneumatic system can find wide use in active automatic checking devices with continuous measurement of the removal of allowances and observation of the course of the process, in automatic checking devices for measuring parts with large allowances, etc.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994275
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    Paper (German National Licenses)
    Fulltext
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