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  • 1
    Electronic Resource
    Electronic Resource
    Hyperfine structure measurements of103Rh (1987)
    Springer
    The European physical journal 5 (1987), S. 147-150 
    Details
    ISSN: 1434-6079
    Keywords: 35.10.F ; 32.30.B ; 32.30.J
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Hyperfine structure has been measured in 28 states of103Rh below 34,000 cm−1. The magnetic dipole interactionA constants in the metastable states 4d 8 5s 4 P 5/2,3/2,2 P 3/2,1/2,2 D 5/2,3/2,2 G 9/2,7/2 and 4d 7 5s 2 4 F 9/2,7/2,5/2,3/2 have been determined using the laser radio-frequency double-resonance method and in the states 4d 8 5p 4 D 7/2,5/2,3/2,1/2,4 G 7/2,5/2,4 F 9/2,7/2,5/2,3/2,2 G 9/2,7/2,2 F 7/2,5/2 and2 D 5/2,3/2 by high-resolution laser spectroscopy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436889
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  • 2
    Electronic Resource
    Electronic Resource
    Method for analysing multiple-breath bitrogen washouts (1986)
    Springer
    Medical & biological engineering & computing 24 (1986), S. 83-90 
    Details
    ISSN: 1741-0444
    Keywords: Computer analysis ; Dead space calculation ; Distribution of ventilation ; Gas mixing ; Linear estimation of exponentials ; Multiple breath nitrogen washout ; Nitrogen elimination pattern ; Ventilatory efficiency ; z-transform
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract A method of analysing multiple-breath nitrogen washouts is described and discussed. The method is objective and introduces no weighting into the results. The necessary raw data are obtained from a computer-assisted nitrogen washout test. During the analysis, objective parameters which characterise the alveolar ventilation in terms of nitrogen elimination pattern and gas-mixing efficiency are calculated, together with estimates of functional residual capacity (FRC), tidal volume, dead space, and effective part of the tidal volume. The elimination pattern is described through linear fitting of exponential models to the obtained washout course and is performed by using the z-transform. The dead space and the effective part of the tidal volume are estimated from a gas-mixing model. The applied estimation procedure difines a dead space which is larger than the corresponding single-breath dead space and has been designated ‘effective dead space’. The gas-mixing efficiency is described by two indices, one describing the efficiency within an idealised breath and the other the overall efficiency of the lungs. The calculation algorithms are fast and the results are easy to interpret, which makes the method suitable for clinical online applications. The method has been evaluated in a group of 24 healthy newborns at about 26 hours of age, but the application is not restricted to this category of patient.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02441610
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