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  • 1
    Electronic Resource
    Electronic Resource
    Familial scleroderma: Do environmental factors, genes and microchimerism share the same relevance? (2001)
    Oxford, UK : Blackwell Science Ltd
    Journal of the European Academy of Dermatology and Venereology 15 (2001), S. 0 
    Details
    ISSN: 1468-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1468-3083.2001.00152.x
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  • 2
    Electronic Resource
    Electronic Resource
    Duplication of Ph and of 9q+ chromosomes during the blastic transformation of a CML case
    Amsterdam : Elsevier
    Cancer Genetics and Cytogenetics 29 (1987), S. 57-63 
    Details
    ISSN: 0165-4608
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0165-4608(87)90030-6
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  • 3
    Electronic Resource
    Electronic Resource
    Reversed-phase high-performance liquid chromatography with isocratic elution of 6α-methyl-17α-acetoxyprogesterone (MAP) and its impurities
    Amsterdam : Elsevier
    Journal of Chromatography A 330 (1985), S. 415-419 
    Details
    ISSN: 0021-9673
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0021-9673(01)82007-0
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  • 4
    Electronic Resource
    Electronic Resource
    Radiance temperatures (at 658 and 898 nm) of niobium at its melting point (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 495-510 
    Details
    ISSN: 1572-9567
    Keywords: high-speed pyrometry ; high temperature ; melting ; niobium ; normal spectral emissivity ; pulse heating ; radiance temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Radiance temperatures (at 658 and 898 nm) of niobium at its melting point were measured by a pulse-heating technique. A current pulse of subsecond duration was imparted to a niobium strip and the initial part of the melting plateau was measured by high-speed pyrometry. Experiments were performed with two techniques and the results do not indicate any dependence of radiance temperature (at the melting point) on initial surface or system operational conditions. The average radiance temperature at the melting point of niobium is 2420 K at 658 nm and 2288 K at 898 nm, with a standard deviation of 0.4 K at 658 nm and 0.3–0.6 K at 898 nm (depending on the technique used). The total uncertainty in radiance temperature is estimated to be not more than ±6 K. The results are in good agreement with earlier measurements at the National Institute of Standards and Technology (USA) and confirm that both radiance temperature and normal spectral emissivity (of niobium at its melting point) decrease with increasing wavelength in the region 500–900 nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566048
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  • 5
    Electronic Resource
    Electronic Resource
    Thermophysical properties of thoriated tungsten above 3600 K by a pulse-heating method (1996)
    Springer
    International journal of thermophysics 17 (1996), S. 1025-1036 
    Details
    ISSN: 1572-9567
    Keywords: electrical resistivity ; Frenkel disorder ; heat capacity ; melting point ; thoria ; tungsten ; welding electrodes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Thoriated tungsten (tungsten, 98% thorium oxide, 2%) is a widely used electrode material for inert-gas arc-welding. A subsecond pulse-heating technique was applied to rod specimens: radiance temperature was measured by high-speed pyrometry. Literature values of the temperature dependence of the normal spectral emissivity of tungsten were used to obtain true temperatures, with the melting point of thoriated tungsten as a calibration point. Experimental results obtained in the temperature range from 3600 K to the melting point (3693 K) are presented and discussed, along with data obtained during the initial part of the free cooling period. The electrical resistivity results show a regular behavior up to the melting point, indicating that thoria remains an insulator up to 3680 K. During heating, a heat capacity anomaly is found near 3666 K, interpreted as the melting point of thoria. During cooling, two anomalies are found, the first one with a peak near 3660 K and a second one (possibly a Frenkel disorder) with a peak near 3148 K.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01441991
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  • 6
    Electronic Resource
    Electronic Resource
    A new dynamic technique for the measurement of hemispherical total emittance (1992)
    Springer
    International journal of thermophysics 13 (1992), S. 17-27 
    Details
    ISSN: 1572-9567
    Keywords: dynamic measurements ; emittance ; high temperature ; scanning pyrometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new dynamic technique for the measurement of thermal conductivity under development at the IMGC requires accurate values of heat capacity and of hemispherical total emittance at high temperature. Until recently, these data were provided by subsecond pulse heating experiments performed on the same specimens in the same apparatus. The pulse heating technique is the most accurate method for the determination of heat capacity at high temperatures, but because of various experimental problems, the accuracy of hemispherical total emittance determinations is limited to 5%. A new method for a more accurate determination of hemispherical total emittance is proposed, which uses the same experimental data available from thermal conductivity experiments. An analysis of the temperature profiles measured during the free cooling indicates that regions with high-temperature gradients (toward the ends of the specimen) are the best regions for thermal conductivity measurements, while regions with low-temperature gradients (at the center of the specimen) are the best regions for hemispherical total emittance determinations. The new measurement method and some preliminary results are presented and discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00503352
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  • 7
    Electronic Resource
    Electronic Resource
    Heat capacity and electrical resistivity of SRM molybdenum (1300–2500 K) (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 173-181 
    Details
    ISSN: 1572-9567
    Keywords: dynamic measurements ; electrical resistivity ; heat capacity ; high temperature ; molybdenum ; standard reference material
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Data for the heat capacity and electrical resistivity of the National Bureau of Standards (NBS) molybdenum standard reference material 781 are reported for the temperature range 1300–2500 K. The specimen was one of the three specimens previously used at NBS for similar measurements. Measurements of both properties agree within ±0.5% in the overlapping temperature range (1500–2500 K).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500140
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  • 8
    Electronic Resource
    Electronic Resource
    Thermal conductivity by a pulse-heating method: Theory and experimental apparatus (1990)
    Springer
    International journal of thermophysics 11 (1990), S. 629-641 
    Details
    ISSN: 1572-9567
    Keywords: dynamic measurements ; high temperature ; scanning pyrometry ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new dynamic technique for the measurement of thermal conductivity at high temperatures has been developed at the IMGC. The specimen is brought to high temperatures with a current pulse; during cooling the heat content is dissipated by radiation and by conduction. The differential equation describing this process contains terms related to the heat capacity, the hemispherical total emittance, and the thermal conductivity of the material. If the first two properties are determined using the same specimen during subsecond pulse heating experiments, thermal conductivity may be evaluated by accurate measurements of the round-shaped temperature profiles established on the specimen during cooling. High-speed scanning pyrometry makes possible accurate measurements of temperatures and of temperature derivatives (with respect to space and time), which enables the differential equation describing the power balance at each point of the specimen to be transformed into a linear equation of the unknown thermal conductivity. A large overdetermined system of linear equations is solved by least-squares techniques to obtain thermal conductivity as a function of temperature. The theory underlying the technique is outlined, the experimental apparatus is described, and details of the measurement technique are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01184333
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  • 9
    Electronic Resource
    Electronic Resource
    A new technique for the measurement of radiance temperature at the melting point (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 485-494 
    Details
    ISSN: 1572-9567
    Keywords: high-speed pyrometry ; high temperature ; melting ; pulse heating ; radiance temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Measurements of the radiance temperature of metals at their melting point received wide attention recently on account of controversial results obtained in different laboratories. During further investigations at IMGC, a new technique for radiance temperature measurements at the melting point was perfected, with numerous experiments performed at the melting point of niobium. The new technique consists in bringing the material to the melting point and interrupting the flow of current just before the specimen is destroyed. Using this method the melting plateau may be repeated several times using the same specimen. Repeatibility studies may be performed, and changes in the surface structure of the material may be evaluated. Typical results of this new technique are presented, along with a complete description of this new measurement method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566047
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  • 10
    Electronic Resource
    Electronic Resource
    Evaluation of thermal conductivity from temperature profiles (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 525-539 
    Details
    ISSN: 1572-9567
    Keywords: dynamic measurements ; high temperature ; scanning pyrometry ; temperature profiles ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new dynamic technique for the measurement of thermal conductivity is being developed at IMGC. The experiment consists in bringing the specimen to high temperatures with a current pulse and in measuring the temperature profiles during the free cooling period. Different techniques can be used to extract the information on thermal conductivity from the profiles. The numerical computation of thermal conductivity from the experimental temperature profiles in absolute space is possible, but it is difficult and cumbersome because one must know and take into the account the exact position of the infinitesimal elements of the specimen in different profiles. Computations in tube-space (a fictitious space where no thermal expansion occurs) are simpler and lead to less complex numerical computations. Complementary techniques to evaluate thermal conductivity as a function of temperature or at constant temperature are presented with a discussion of advantages and disadvantages of each method. Computer simulations have tested the precision of the complex software. Numerically generated temperature profiles from known thermophysical properties have been obtained and thermal conductivity has been recomputed from the profiles. The relative difference using different computational approaches and different fitting functions is always less than 0.1%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00566050
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