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  • 1
    Electronic Resource
    Electronic Resource
    Nanosecond-time-resolution thermal emission measurement during pulsed excimer-laser interaction with materials (1996)
    Springer
    Applied physics 62 (1996), S. 51-59 
    Details
    ISSN: 1432-0630
    Keywords: 44.10. + i ; 64.70.Dv ; 79.20.Ds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A nanosecond-time-resolution pyrometer has been developed for measuring the transient surface temperature of a solid material heated by pulsed excimer-laser irradiation. Fast germanium diodes are employed to capture the transient thermal emission signals in the wavelength range between 1.2 and 1.6 pm. The surface temperature is derived from the measured spectral thermal emission. The directional spectral emissivity is determined in situ by measuring the transient directional spectral reflectivity and applying Kirchhoffs law. The experimental results are in good agreement with numerical thermal modeling predictions. The pyrometric thermal emission measurement also yields the solid/liquid interface temperature during the pulsed excimer-laser-induced melting. The relation between the measured interface superheating temperature and the interface velocity reveals the melting kinetic relation during the high-power, short-pulse laser-induced phase-change processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01568087
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Diagnostic value of growth hormone-releasing hormone test in children and adolescents with idiopathic growth hormone deficiency (1992)
    Springer
    European journal of pediatrics 151 (1992), S. 263-265 
    Details
    ISSN: 1432-1076
    Keywords: Growth hormone releasing hormone test ; Growth hormone deficiency ; Pituitary insufficiency
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Average growth hormone (GH) peaks following an i.v. growth hormone releasing hormone (GHRH) 1–29 stimulation test were significantly lower in 48 children and adolescents with GH deficiency (GHD) than in 20 age-matched controls (15.2+12.7 vs 37.5+28.1 ng/ml, 2P〈0.001). Twelve patients exhibited a low GH peak (〈5 ng/ml), 27 demonstrated a normal response (〉10 ng/ml) and 9 showed an intermediate rise in plasma GH (5–10 ng/ml). Six of the 12 patients with low GH response to the first GHRH stimulation failed to respond to two other tests immediately before and after a 1 week priming with s.c. GHRH. These subjects with subnormal GH increase at repeat testing had total GHD (TGHD) and multiple pituitary hormone deficiency (MPHD) and had suffered from perinatal distress. On the contrary, 26 of 27 patients with normal GH response to the first test had isolated GHD and only a minority (8/27) had signs of perinatal distress. It is concluded that perinatal injuries primarily damage pituitary structures and that a pituitary defect more probably underlies more severe forms (TGHD and MPHD) of GHD.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02072225
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    Paper (German National Licenses)
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