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  • 1975-1979  (2)
  • 1915-1919
  • Positrons  (1)
  • complex analysis  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Experiments with a symbolic programming system for complex analysis (1976)
    Springer
    BIT 16 (1976), S. 241-256 
    Details
    ISSN: 1572-9125
    Keywords: Symbolic computing ; complex analysis ; contour integration ; Cauchy's Theorem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The paper reports the results of work on the construction of LISP programs for various symbolic operations in complex analysis, including the evaluation of integrals around closed contours by the use of Cauchy's Theorem. It is concluded that the only difficulty in the way of the preparation of programs for all of the important and useful textbook calculations in complex analysis is that large amounts of fast storage in the computer are needed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01932266
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Radionuclide emitters for high-temperature measurements on metals using positron annihilation (1975)
    Springer
    Applied physics 6 (1975), S. 327-334 
    Details
    ISSN: 1432-0630
    Keywords: Metals ; Positrons
    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 fabrication of68Ge and44Ti positron sources which can withstand temperatures up to 1000°C is described. The sources are designed for use in the measurement of thermally-generated vacancy concentrations by the positron trapping technique. Measurements of positron lifetimes and Doppler-broadened annihilation photon lineshapes indicate that if suitable corrections are made the contribution of source matrix annihilations to experimental data can be reduced to less than 0.5% of the total annihilation events.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00883650
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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