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  • 2000-2004  (8)
  • 1
    Electronic Resource
    Electronic Resource
    Phase formation and magnetic properties of SmFe7Nx+αFe composite thin films (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 6585-6587 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Sm(Zr)Fe7Nx+αFe composite thin films were prepared on various substrates with differing values of thermal expansion from SmxFebalZry (11.3[less, double equals]x[less, double equals]17.8,0[less, double equals]y[less, double equals]3.2) targets by the rf sputtering method followed by annealing and nitrogenation. Their phase formation and magnetic properties were studied. All of the as-deposited films were amorphous, and the only films synthesized from the target with x=84 were crystallized into a composite of Sm(Zr)Fe7+αFe by annealing. Successive nitrogenation of the films with x=84 formed Sm(Zr)Fe7Nx+αFe composites whose grain diameter was estimated to be 30–50 nm. Despite the small coercivity of the prepared films, their recoil curves showed a remarkable spring-back phenomenon which originates in the exchange coupling between Sm(Zr)Fe7Nx and α Fe grains. The addition of Zr decreased the lattice constant, and choice of substrate did not affect the grain size. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.372778
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  • 2
    Electronic Resource
    Electronic Resource
    Nanostructured soft magnetic material with low loss and low permeability (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 7103-7105 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Nanostructured Fe–Cu–Nb–Si–B ribbons with relative permeability of a few hundred were prepared by using creep-induced anisotropy and their soft magnetic properties were evaluated. The observed domain pattern for an obtained ribbon suggests that magnetization process is due to the magnetization rotation mode. The variation of magnetization by its rotation results in frequency-independent behavior of the permeability up to 1 MHz with magnetic loss comparable to that of ferrite cores. A large saturation magnetization of the studied ribbons enables us to obtain the figure of merit for applications to the storage of magnetic energy being much larger than that of ferrite cores with air gaps. These results suggest that the Fe–Cu–Nb–Si–B ribbons with creep-induced anisotropy are suitable for a magnetic material for the storage of magnetic energy. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.372944
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  • 3
    Electronic Resource
    Electronic Resource
    Planar shock wave generated by uniform irradiation from two overlapped partially coherent laser beams (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 2571-2575 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Two partially coherent light laser beams, coupled with a random phase plate were focused at an angle of 31.7° with the centers of the beams offset by 250 μm. This produced a relatively uniform (7% root-mean-square) irradiated spot of 400 μm. When this technique was used to produce a shock wave in a copper wedge, a relatively uniform shock of 2 ns duration was produced. In addition, a multilayered flyer plate was accelerated using this method to an average speed of 21 km/s and produced a planar impact on a glass window. It is anticipated that this technique can be used to produce important multi-Mbar equation of state information in future experiments. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1342189
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  • 4
    Electronic Resource
    Electronic Resource
    Mn–Zn ferrite thin films fabricated on crystalline substrates using laser ablation technique (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 6217-6219 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report a fabrication of Mn–Zn ferrite thin films by a low temperature process. It was found that usage of crystalline substrates is an effective way to obtain crystallized Mn–Zn ferrite thin films at the substrate temperature of room temperature in laser ablation technique. The usage of crystalline substrates reduced the coercive force of the thin films by approximately 25% compared to that of the thin films fabricated on glass substrates. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.372659
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  • 5
    Electronic Resource
    Electronic Resource
    Quantitative study of bite force during sleep associated bruxism (2001)
    Oxford UK : Blackwell Science Ltd
    Journal of oral rehabilitation 28 (2001), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Nocturnal bite force during sleep associated bruxism was measured in 10 subjects. Hard acrylic dental appliances were fabricated for the upper and lower dentitions of each subject. Miniature strain-gauge transducers were mounted to the upper dental appliance at the right and left first molar regions. In addition, thin metal plates that contact the strain-gauge transducers were attached to the lower dental appliance. After a 1-week familiarization with the appliances, nocturnal bite force was measured for three nights at the home of each subject. From the 30 recordings, 499 bruxism events that met the definition criteria were selected. The above described system was also used to measure the maximum voluntary bite forces during the daytime. The mean amplitude of detected bruxism events was 22·5 kgf (s.d. 13·0 kgf) and the mean duration was 7·1 s (s.d. 5·3 s). The highest amplitude of nocturnal bite force in individual subjects was 42·3 kgf (15·6–81·2 kgf). Maximum voluntary bite force during the daytime was 79·0 kgf (51·8–99·7 kgf) and the mean ratio of nocturnal/daytime maximum bite force was 53·1% (17·3–111·6%). These data indicate that nocturnal bite force during bruxism can exceed the amplitude of maximum voluntary bite force during the daytime.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2842.2001.00692.x
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  • 6
    Electronic Resource
    Electronic Resource
    Evaluation of proximal tooth contact tightness at rest and during clenching (2004)
    Oxford, UK : Blackwell Science Ltd
    Journal of oral rehabilitation 31 (2004), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary  The aims of this study were to develop a device for measuring the tightness of proximal tooth contact and to evaluate the proximal contact tightness using this device at rest and during clenching. Twenty young adult volunteers with healthy dentition participated in this experiment. The tightness of proximal tooth contact between the second premolar and the first molar of both the maxilla and the mandible was measured by pulling a stainless steel strip between them at rest, and at 20 and 50% clenching levels of maximum voluntary contraction of masseter muscles at intercuspal position. Proximal contact tightness increased as the clenching levels of both the maxilla and the mandible increased. At rest, proximal contact tightness was less in the maxilla than in the mandible, whereas during clenching it was less in the mandible. These results indicate that during clenching, the teeth are displaced and they contact appropriately with adjacent teeth, making it possible to exert sufficient occlusal force while maintaining the integrity of dental arches.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.2004.01181.x
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  • 7
    Electronic Resource
    Electronic Resource
    Preparation of 6.5% Silicon Steel Sheets with (100) Texture (2001)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 373-376 (Aug. 2001), p. 745-748 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/05/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.373-376.745.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Environmental Radiation Monitoring after the Accidental Release from Bituminization Demonstration Facility (2000)
    Springer
    Journal of radioanalytical and nuclear chemistry 243 (2000), S. 319-322 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The fire and explosion of the Bituminization Demonstration Facility at PNC Tokai Works were occurred on March 11th, 1997. As soon as the fire occurred, environmental monitoring was started. The influence of accidental release was recognized from some samples of airborne dust and surface soil on site. No influence was recognized from the samples off site except the airborne dust collected at O-arai (20 km south). The official statement by the Nuclear Safety Commission of Japan was: "It was less than the value which has an influence on the environment and health."
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1016037005614
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