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  • 2010-2014
  • 1995-1999  (2)
  • 1980-1984
  • 1997  (2)
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  • 2010-2014
  • 1995-1999  (2)
  • 1980-1984
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Optical and quantum electronics 29 (1997), S. 379-392 
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The wavelength-independent, non-reciprocal splitting properties of the asymmetric, multimode Y-junction make it an ideal device for use as a low-loss, low-power tap in a concatenated linear bus. The properties of a two-dimensional slab model of the junction are investigated and the results of ray-tracing, modal and numerical beam propagation method (BPM) techniques are compared. Minimization of splicing loss between the ports of a square-core, three-dimensional buried channel waveguide version of the device and a multimode fibre is also addressed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-0697
    Source: Springer Online Journal Archives 1860-2000
    Topics: Philosophy , Economics
    Notes: Abstract Smokers and nonsmokers possess equal rights but those rights conflict with each other in the use of shared facilities. Medical research has established that smoking harms not only those who use the product but also those who are passively exposed to it. Laws and private regulation of smoking in shared facilities have resulted in the segregation of smokers from nonsmokers to an outright ban of tobacco use. Such controls have provided unsatisfactory results to both groups. An acceptable ethical solution, based on reduction of harm and compensation, can be derived by applying Moral Audit principles, supported by economic analysis, which does not unduly curtail the rights of both parties as to the use of tobacco products.
    Type of Medium: Electronic Resource
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