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  • 1
    Electronic Resource
    Electronic Resource
    Longitudinal discharge N2 laser with automatic preionization using an LC inversion circuit (1988)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 59 (1988), S. 2552-2556 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A four-segmented longitudinal discharge low pressure N2 laser (337 nm) is reported in which automatic spark preionization and an LC inversion-charge transfer excitation circuit are employed. Its laser output power was nearly doubled when the techniques developed here were used. The characteristics of the peak laser output powers are interpreted qualitatively, with the electron densities calculated from the observed discharge voltages and currents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139896
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  • 2
    Electronic Resource
    Electronic Resource
    Contactless transport measurement of metals in pulsed high magnetic fields (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 444-449 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A contactless method is developed for high-sensitivity magnetoresistance measurement in pulsed high fields. The resistivity is measured by observing transmission of a radio-frequency field through a thin specimen. The transmission rate is analytically given as a function of the resistivity within the classical skin-effect regime. By use of a high-frequency (0.1–100 MHz), electrical noise coming from pulsed magnetic fields can be rejected effectively and the sensitivity of the measurement is improved by at least a factor of 100 compared with that of a conventional dc four-terminal method. The present method is available for the measurements on superconductors, magnetic metals, and any other materials with short collision time in high magnetic fields. Upper critical fields and magnetoresistance of recent high Tc superconductors Y-Ba-Cu-O are measured up to 40 T.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140398
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  • 3
    Electronic Resource
    Electronic Resource
    As-grown superconducting Bi(-Pb)-Sr-Ca-Cu-O films by electron cyclotron resonance plasma sputtering (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 498-500 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Bi(-Pb)-Sr-Ca-Cu-O thin films were prepared on MgO(100) single-crystal substrates by electron cyclotron resonance (ECR) plasma sputtering at substrate temperatures from room temperature to 590 °C. Pb-doped superconducting as-grown films were obtained above 560 °C. The Tc values of the Pb-doped films prepared at 570–590 °C were 58–64 K which increased with increasing substrate temperature. Pb-undoped as-grown films obtained at 590 °C showed superconduction (Tc =30 K), but the films obtained below 580 °C were semiconductors. The grain sizes and contents of the 37 A(ring) phase (110 K phase) were increased by the Pb doping into the as-grown Bi-Sr-Ca-Cu-O films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.101862
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  • 4
    Electronic Resource
    Electronic Resource
    Attempt at LSI pattern demagnification by Bragg reflection : INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 2153-2156 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A new method for pattern reduction in the x-ray region is proposed. In its principle was used the asymmetric Bragg reflection giving the different beamwidth in the reflected beam from the incident one. Light from an undulator line (BL-2) at the Photon Factory was used to obtain highly spatially resolved replication in reasonably short exposure time. Performed was one-dimensional demagnification of a pattern with a ratio of 1/4 in the following condition: Si 111 reflection was used where the offset angle α from the surface is 22° and the wavelength λ was 3.5 λ, which is available from the 7th harmonic of the undulator radiation. The submicron scale resist pattern was resolved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140806
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  • 5
    Electronic Resource
    Electronic Resource
    Dynamical properties of magneto-optical effect in magnetic fluid thin films (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5846-5848 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The dynamical properties of the magneto-optical effects of magnetic fluids thin films were investigated. The thin films, 12 μm thick, of magnetite colloidal particles in water solvents and alkylnaphthalene one were prepared. A pulsed magnetic field H(t) was generated in a single turn coil by discharging a 40-kV capacitor bank. The intensity I(t) of the transmitted light through the two crossed polarizers and the films located in the coil was measured. The relaxation process of the magneto-optical effect can be described in terms of a single relaxation time, τ=3 μs, for a water-based magnetic fluid, while the relaxation time constant for alkylnaphthalene one depends on the field strength. These dynamical properties can be interpreted by the time-dependent Ginzburg–Landau theory by introducing the order parameter of the colloidal particles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342231
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  • 6
    Electronic Resource
    Electronic Resource
    Cluster-glass behavior of FexNiGe (0.5≤x≤0.9) (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 3450-3452 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The compounds FexNiGe have the Ni2In-type crystal structure in the nonstoichiometric composition range of 0.5(approximately-less-than)x(approximately-less-than)0.9. With decreasing temperature, the magnetization of these compounds shows a broad maximum first and then decreases abruptly at a critical temperature Tf which varies with x from 5 K for x=0.5 to 17 K for x=0.9. Spin-glass-like freezing is considered to occur at Tf. The Mössbauer spectra observed below Tf show a symmetric pattern and exhibit a wide distribution of hyperfine fields. The symmetric pattern of the spectra is attributable to the freezing of iron moments in random directions. The Mössbauer linewidth decreases sharply with increasing temperature near Tf. This fact would mean that the relaxation time of the magnetic moments strongly depends on temperature and exceeds the nucleus Larmor period below Tf. The long relaxation time of the magnetic moments may be due to the formation of magnetic clusters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.335073
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  • 7
    Electronic Resource
    Electronic Resource
    Structure of a new macrocyclic antibiotic (1987)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 43 (1987), S. 751-753 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270187094253
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  • 8
    Electronic Resource
    Electronic Resource
    An experimental study of non-equilibrium vapour condensation in a shock-tube (1989)
    Springer
    Experiments in fluids 7 (1989), S. 513-520 
    Details
    ISSN: 1432-1114
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Filmwise non-equilibrium condensation of methanol vapour is investigated on a shock-tube endwall behind a reflected shock wave. The theoretical prediction of a transition phenomenon during the growth of a liquid film is experimentally demonstrated: the film grows approximately in proportion to the time at the early stages after the reflection of the shock wave and, after a transition period, it grows in proportion to the square root of the time. The condensation parameter of the vapour is obtained from the conformity between experiment and theory. It is found that the condensation parameter of the methanol vapour is of the magnitude of one tenth of the value for the complete capture of the molecules on the liquid surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00187402
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  • 9
    Electronic Resource
    Electronic Resource
    Ecchordosis physaliphora arising from the cervical vertebra, the CT and MRI appearance (1988)
    Springer
    Neuroradiology 30 (1988), S. 81-83 
    Details
    ISSN: 1432-1920
    Keywords: Computed tomography ; Magnetic resonance imaging ; Ecchordosis physaliphora ; Spinal cord
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors report a rare case of ecchordosis physaliphora arising from C2, manifested with clinical symptoms, with the findings of CT scans and MRI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00341951
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  • 10
    Electronic Resource
    Electronic Resource
    Entry of adult T-cell leukemia-associated virus into human peripheral blood leukocytes (1985)
    Springer
    Archives of virology 85 (1985), S. 321-328 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Within 10 minutes after tritium-labeled adult T-cell leukemia-associated virus (ATLV) inoculation, silver grains were found over human lymphocytes. At the time of entry of ATLV, the viral envelope was observed to fuse with the cell membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01314241
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