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  • 1990-1994  (38)
  • 1975-1979  (10)
  • 1965-1969  (4)
  • 1
    Electronic Resource
    Electronic Resource
    On the structure of ducts for mid-latitude whistlers and their ionospheric transmission as deduced from the ground-based direction finding (1993)
    Springer
    Pure and applied geophysics 140 (1993), S. 519-535 
    Details
    ISSN: 1420-9136
    Keywords: Whistler ; direction finding ; duct ; polarization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The ground-based direction finding carried out at Ceduna, Australia (L=1.93) has yielded the structure for mid-latitude whistlers and their duct ionospheric transmission mechanism. It is found that the ducts tend to take place (or be formed) at the same latitudes and that such sheet-shaped duct includes some inhomogeneities within it which act as field-aligned ducts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876969
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Equations for diffuse scattering from materials with multiple sublattices (1975)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 31 (1975), S. 635-645 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: General equations are presented for the diffuse scattering due to local ionic arrangements and displacements in systems with more than one ion per lattice point. Up to fourth-order terms are included. These are placed in a form easy to evaluate in specific cases; examples are given of a solid-solution oxide, and an oxide with vacant sites. Methods for employing these equations for the separation of the various contributions are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739475001362
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  • 3
    Electronic Resource
    Electronic Resource
    CoPtB(O) alloy films as new perpendicular recording media (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 67 (1990), S. 5175-5177 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: In search of new hard magnetic materials with high saturation magnetization and large coercivity, a comprehensive study was made on numerous Co- and CoPt-base crystalline alloys by means of sputtering techniques. It revealed that a newly found CoPtB(O) alloy system possessed excellent hard magnetic properties with remarkably large perpendicular coercivity and high saturation magnetization. This new alloy film, deposited onto room temperature substrates, shows the magnetic properties of 4πMs=12 kG, H⊥c=4000 Oe, and perpendicular anisotropy field Hk=22 kOe. These values are superior to those of prevailing materials such as CoCr perpendicular and CoPt or CoNi longitudinal recording media. The typical composition is Co69Pt20B6O5 (at. %), and oxygen plays a momentous role on the coercivity in this alloy film. As a magnetic recording medium, a write/read experiment of this film shows that the readout signal has a +9 dB peak-to-peak amplitude compared with that of metal particle tape at 1 μm wavelength and has +10 dB compared with that of a CoCr perpendicular medium at 0.5 μm wavelength.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346052
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  • 4
    Electronic Resource
    Electronic Resource
    Magnetocrystalline anisotropy and magnetostriction of FeRuGaSi single crystals: SOFMAX (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 886-890 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The magnetocrystalline anisotropy constant, K1 and the magnetostriction constants, λ100 and λ111 for recently found soft magnetic FeGaSi and FeRuGaSi alloys were determined in the composition region, 0–8 at. % Ru, 5–15 at. % Ga, 10–22 at. % Si, and bal. Fe. The Ru 4–8 at. %-added FeRuGaSi alloys have the intersectional points, where λ100, λ111, and K1 simultaneously become zero, at the compositions around Fe67Ru4Ga11Si18 and Fe65Ru8Ga8Si19 (at. %), whereas in the FeGaSi alloy the K1=0 line and the two zero magnetostrictive lines are apart from one another.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.347328
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  • 5
    Electronic Resource
    Electronic Resource
    X-ray diffraction studies of Wüstite at high temperature (1975)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 8 (1975), S. 126-126 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: Diffuse scattering from FexO was measured at 840°C. Relatively sharp peaks were observed along the [h00] direction near the NaCl-type fundamental peaks.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889875009788
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  • 6
    Electronic Resource
    Electronic Resource
    Experimental considerations in measurements of diffuse scattering (1975)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 8 (1975), S. 87-95 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A brief review is given of the Borie–Sparks method of measuring and separating the diffuse scattering in alloys due to local displacements of atoms from lattice sites. Experimental techniques are reviewed with particular emphasis on simple computer controls, dead time, monochromators and specimens. After this, sources of error in the measurements are discussed and simple methods for assessing these errors presented. Equations for estimating higher-order terms than those included by Borie and Sparks are presented. It now appears that a thorough analysis of the errors needs to be made for each measurement prior to its publication. As this kind of experiment is readily automated and easily analyzed for errors with modern computers, this should now become standard procedure. It is also suggested that intensities in electron units be kept on file and made available when requested, as is done with structure factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889875009715
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  • 7
    Electronic Resource
    Electronic Resource
    Vorticity-based eduction of large-scale structures in turbulent shear flows (1994)
    Springer
    Flow, turbulence and combustion 53 (1994), S. 203-225 
    Details
    ISSN: 1573-1987
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract This paper is mainly concerned with a vorticity-based conditional sampling technique, which identifies large-scale vorticity-bearing flow events in turbulent shear flows using multiple X-wire probes. Basic ideas and procedures of the technique are described, and several examples of the results are presented. Advantages and limitations of the technique are also discussed from an experimental point of view.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00849100
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  • 8
    Electronic Resource
    Electronic Resource
    Electron microscopic observation of rapidly cooled ZrO2-3 mol% Sm2O3 from the melt (1993)
    Springer
    Journal of materials science 28 (1993), S. 6066-6069 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Electron microscopic observation was made on ZrO2-3 mol % Sm2O3 specimens prepared from the melt using two different cooling rates, namely rapid quenching using a hammer-anvil apparatus and free cooling on a water-cooled copper hearth. The observed microscopic features, such as fully tetragonal grains with parallel twins or herringbone structure, anti-phase boundary contrast in a dark-field image, tweed structure, etc., were found to be quite similar to those observed in similarly prepared ZrO2-3 mol % Y2O3 specimens. It was specifically noted that the tweed structure, which requires atomic diffusion, was not suppressed by the rapid quenching, indicating a very fast growth rate. Trace analysis was also conducted on the tweed structure observed in freely cooled specimens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365022
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  • 9
    Electronic Resource
    Electronic Resource
    Terrestrial electromagnetic noises (1994)
    Springer
    Radiophysics and quantum electronics 37 (1994), S. 464-467 
    Details
    ISSN: 1573-9120
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract The terrestrial electromagnetic noise environment in the frequency range from ULF to VLF/ELF is reviewed mainly on the basis of our latest results, and important new findings are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01088657
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  • 10
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    Searching forT,CP,CPT, andΔS=ΔQrule violations in the neutralKmeson system: A guide (1993)
    American Physical Society
    Details
    Publication Date: 1993-08-01
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Published by American Physical Society
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