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  • American Institute of Physics (AIP)  (3)
  • Springer  (2)
  • 1985-1989  (3)
  • 1965-1969  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Heterogeneous silicon crystal growth on a single-crystal silicon wafer (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 66 (1989), S. 5851-5853 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Using a new process, a large grain polycrystalline silicon layer was grown directly from molten Si on a single-crystal silicon wafer at a rate 100 times faster than the conventional chemical vapor deposition process. A polycrystalline silicon layer was also produced on a single-crystal silicon wafer, which had an oxide layer and etched V grooves, through use of an additional ultrasonic wave effect in this process. A layer thickness of 100–600 μm and a grain size of 10 μm–3 mm were controllably obtained. After the growth of the polycrystalline layer, dislocation densities of 4×105 cm−2 for the single-crystal silicon substrate, and 2×106 cm−2 for the polycrystalline layer were obtained. Some devices were fabricated from the products of this new process, and the characteristics of these devices were investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343606
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  • 2
    Electronic Resource
    Electronic Resource
    Prebaking and silicon epitaxial growth enhanced by UV radiation (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 2224-2229 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: UV light irradiation effects on prebaking and silicon epitaxial growth is studied. An ArF excimer laser, a KrF excimer laser, and a Hg-Xe lamp are used as light sources. The epitaxial growth is carried out using a SiH2Cl2/H2 system under reduced pressure. ArF radiation and Hg-Xe radiation are found to be effective for volatilizing native SiO2 on silicon-substrate surfaces even at low temperatures. When a substrate surface is irradiated with these UV radiations during prebaking and epitaxial growth, epilayer surface morphology and crystalline quality are much improved. Furthermore, the epitaxial growth rate seems to be enhanced photothermally by excimer laser radiations, and photochemically by Hg-Xe radiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337983
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  • 3
    Electronic Resource
    Electronic Resource
    Polarized neutron scattering of D2O-based magnetic fluids (depolarization) (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5849-5851 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetite colloidal fluid with a carrier fluid of deuterium oxide (D2O) was prepared to eliminate the incoherent scattering by hydrogen nucleons and the depolarization of cold neutrons was measured. The magnetic fluid was cooled down to 17 K in an external magnetic field of 10 kOe. The sample exhibited a finite residual magnetization Mr, which decreases with increasing temperature from 17 K. With elevating the temperature from 17 to 300 K, the depolarization was measured in three cases in which the directions of the beam, Mr, and polarization are mutually changed. The polarized neutrons transmitting through the sample were depolarized by the magnetic moments in the colloidal particles. The polarizations as a function of the product of Mr and neutron wavelength λ at different temperatures reduce to the same functional form. The model which shows that no interactions exist among the ferrous colloidal particles succeeds partly in explaining the experimental results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342232
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  • 4
    Electronic Resource
    Electronic Resource
    Regional and seasonal differences in the fatty acid composition of human subcutaneous fat (1969)
    Springer
    International journal of biometeorology 13 (1969), S. 141-146 
    Details
    ISSN: 1432-1254
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Die Verteilung der Fettsäuren im subcutanen Fett des Menschen wurde gaschromatographisch bestimmt. Die Fettproben wurden in einer Klinik im Norden Japans bei Operationen entnommen. Der prozentuale Anteil an gesättigten Fettsäuren war höher im Fett der Brust und Bauchwand und der an einfach ungesättigten Fettsäuren im Fett des Vorderarms und Beines. Die Anreicherung ungesättigter Fettsäuren in den Extremitäten war im Winter ausgeprägter als im Sommer. In der Zusammensetzung der Fett des Rumpfes fehlte eine jahreszeitenabhängige Variation.
    Abstract: Resume Par analyse chromatographique des gaz, on a déterminé la répartition des acides gras dans les tissus adipeux sous-cutanés de l'homme. Les échantillons de graisse ont été prélevés lors d'opérations dans une clinique du nord du Japon. La proportion d'acides gras saturés était plus élevée dans la graisse de la poitrine et du ventre, alors que les acides gras mono-nonsatures l'emportaient dans l'avant-bras et dans les jambes. L'accumulation d'acides gras non saturés dans les extrémités était plus accentuée en hiver qu'en été. On n'a par contre pas pu établir de relation saisonnière dans la composition de la graisse du tronc.
    Notes: Abstract The fatty acid composition of human subcutaneous fat obtained at a hospital in the north of Japan, was determined by means of gas chromatography. In the fat of chest and abdominal walls percentages of saturated fatty acids were higher and those of mono-unsaturated ones were less in comparison with respective values in the fat of forearm and leg. The unsaturation of the fat of extremities was more pronounced in the winter than in the summer, while no seasonal variations were observed in the fatty acid composition of the fat of trunk.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01552735
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  • 5
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    Regional and seasonal differences in the fatty acid composition of human subcutaneous fat (1969)
    Springer
    Details
    Publication Date: 1969-10-01
    Print ISSN: 0020-7128
    Electronic ISSN: 1432-1254
    Topics: Geography , Physics
    Published by Springer
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