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  • 1
    Electronic Resource
    Electronic Resource
    A twin optically-pumped far-infrared CH3OH laser for plasma diagnostics (1980)
    Springer
    International journal of infrared and millimeter waves 1 (1980), S. 57-76 
    Details
    ISSN: 1572-9559
    Keywords: optically-pumped far-infrared laser ; CH3OH ; two photon transition ; modulated interferometer ; plasma diagnostics ; waveguide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A twin optically-pumped far-infrared CH3OH laser has been constructed for use in plasma diagnostics. The antisymmetric doublet due to the Raman-type resonant two-photon transition is reproducibly observed at 118.8 μm. With the 118.8-μm line, it is obtained from the frequency separation of the anti-symmetric doublet that CH3OH absorption line center is 16±1 MHz higher than the pump 9.7-μm P(36) CO2 laser line center. It is shown that the Raman-type resonant two-photon transition is useful in order to get several-MHz phase modulation for the far-infrared laser interferometer. Some preliminary performances of this twin laser for the modulated interferometer are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01007066
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Thermal stress intensity factor for functionally gradient half space with an edge crack under thermal load (1996)
    Springer
    Archive of applied mechanics 66 (1996), S. 569-580 
    Details
    ISSN: 1432-0681
    Keywords: thermal stress ; FGM ; edge crack ; nonhomogeneity ; singular integral equation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The aim of this work is to investigate the thermal stress intensity factor of a functionally gradient half space with an edge crack under a steady heat flux. All material properties of the functionally gradient half space, except for the coefficient of linear thermal expansion, are exponentially dependent on the distance from the boundary of the plate. The coefficient of linear thermal expansion is assumed to be two-dimensionally dependent. The problem is reduced to a singular integral equation by using the Fourier transform. The thermal stress intensity factor versus the nonhomogeneous material parameters is calculated and represented in figures. The numerical results show that thermal stress intensity factor is dramatically decreased when the material nonhomogeneous parameters are appropriately selected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808145
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Thermal stress intensity factor for functionally gradient half space with an edge crack under thermal load (1996)
    Springer
    Archive of applied mechanics 66 (1996), S. 569-580 
    Details
    ISSN: 1432-0681
    Keywords: Key words thermal stress ; FGM ; edge crack ; nonhomogeneity ; singular integral equation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary  The aim of this work is to investigate the thermal stress intensity factor of a functionally gradient half space with an edge crack under a steady heat flux. All material properties of the functionally gradient half space, except for the coefficient of linear thermal expansion, are exponentially dependent on the distance from the boundary of the plate. The coefficient of linear thermal expansion is as- sumed to be two-dimensionally dependent. The problem is reduced to a singular integral equation by using the Fourier transform. The thermal stress intensity factor versus the nonhomogeneous material parameters is calculated and represented in figures. The numerical results show that thermal stress intensity factor is dramatically decreased when the material nonhomogeneous parameters are appropriately selected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808145
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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