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  • 1985-1989  (10)
  • 1988  (10)
Datenquelle
Materialart
Erscheinungszeitraum
  • 1985-1989  (10)
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Soft magnetic properties of FeRuGaSi alloy films: SOFMAX (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 772-779 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: To advance new soft magnetic materials of an FeGaSi alloy into the commercial world, improvements on various properties were designed by introducing additive elements without sacrificing its high saturation magnetic induction. The detailed studies on the diversified properties, such as saturation magnetic induction, film internal stress, wear resistivity, and so on, were performed. High-frequency permeability of the laminated structure film was also investigated. As a result, the Ru-added FeRuGaSi alloy films, whose typical compositions are Fe72Ru4Ga7Si17 and Fe68Ru8Ga7Si17 (at. %), prove to be excellent soft magnetic materials especially appropriate for the magnetic recording/playback head core use.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.341923
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  • 2
    Digitale Medien
    Digitale Medien
    High-frequency permeability in double-layered structure of amorphous Co-Ta-Zr films (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 5424-5426 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The high-frequency permeability of amorphous Co-Ta-Zr films was studied and the frequency dependence was described in terms of the eddy-current-loss formula. For the double-layered structure intervened with SiO2 film, the degradation of the permeability became apparent with the decrease of SiO2 thickness.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.340362
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  • 3
    Digitale Medien
    Digitale Medien
    Perpendicular magnetic anisotropy and magneto-optical properties of evaporated (Fe,Co)–rare-earth amorphous binary alloy films (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 5492-5494 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The dependence of perpendicular magnetic anisotropy on temperature and composition has been investigated for various (Fe,Co)–rare-earth amorphous binary alloy films prepared by evaporation. The temperature dependence of the perpendicular magnetic anisotropy is proportional to the third power of the rare-earth sublattice magnetization. The perpendicular magnetic anisotropy consists of two terms related to concentration. One is proportional to the rare-earth content and the other to its square. Both terms can be explained by a large rare-earth single-ion anisotropy.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.342310
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  • 4
    Digitale Medien
    Digitale Medien
    Dynamic characteristics of level and two-axis attitude detector using magnetic fluid (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 6023-6025 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Level and attitude detectors are required for the detection of level and angles, for instance, in controlling the attitude of underwater robots, to keep solar cell panels directed constantly toward the sun, and the parabola antenna constantly toward the manmade satellite in communication systems. The usual angle detector can detect angle in one axis only, but the detector described in this paper is able to detect the angles of orientation with the horizontal and the vertical planes with a single unit. In addition, the new detector uses levels, such as water levels, by itself. This detector has three tubes with the magnetic fluid placed inside and with three coils. Its structure is very simple, small, and robust. It is also a light unit. The output signals are sine waves. The static operating characteristics of this detector were shown previously. The dynamic characteristics are presented in this paper.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.342138
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  • 5
    Digitale Medien
    Digitale Medien
    Paralytic shellfish poison in the “hiogi” scallop Chlamys nobilis (1988)
    Springer
    Marine biology 98 (1988), S. 243-246 
    Details
    ISSN: 1432-1793
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Attempts were made to analyze the toxin composition of the toxic “hiogi” scallop Chlamys nobilis. The toxins were partially purified from the digestive glands by column chromatography using Bio-Gel P-2 and Bio-Rex 70 (H+ form), resulting in separation into protogonyautoxin (PX), gonyautoxin (GTX) and saxitoxin (STX) fractions. Their total potencies were scored to be 〈100 mouse units (MU), 3200 MU and 3700 MU, respectively. A 5-min hydrolysis with 0.1 N HCl enhanced the potencies of PX and GTX fractions to 450 MU and 12000 MU respectively, whereas no enhancement occurred in the STX fraction at all. Electrophoretic, thin-layer chromatographic and high performance liquid chromatographic analyses demonstrated that the PX fraction consisted mainly of GTX8 and its epimer, the GTX fraction of GTX5, GTX6, along with two unidentified toxins, and the STX fraction exclusively of two unidentified toxins. This rather unique composition suggested a complex metabolism of PSP in this species.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00391201
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  • 6
    Digitale Medien
    Digitale Medien
    A new high- T c TlBa 2 Ca 3 Cu 4 O 11 superconductor with T c 〉120K (1988)
    [s.l.] : Nature Publishing Group
    Nature 334 (1988), S. 510-511 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Sample preparation was carried out using a furnace in a draft chamber under flowing oxygen. Because of the toxicity of thallium compounds and the high reactivity of Ca and Ba oxides with CO2 a glovebox was used. Sample composition was determined using electron probe micro-analysis and an ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/334510a0
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  • 7
    Digitale Medien
    Digitale Medien
    Biochemical switching device realizing McCulloch-Pitts type equation (1988)
    Springer
    Biological cybernetics 58 (1988), S. 295-299 
    Details
    ISSN: 1432-0770
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Informatik , Physik
    Notizen: Abstract We analyzed cyclic enzyme systems, one of the best candidates for biochemical switching devices, especially focusing on their control mode against external perturbations. Since these systems have the reliability of ON-OFF types of operation (McCulloch-Pitts' neuronic equation), we shall present here the mechanical difference between these systems and electronic switching circuit, especially on the mnemonic mechanism of biochemical switching devices.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00363938
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  • 8
    Digitale Medien
    Digitale Medien
    Oscillations of electric spatial patterns emerging from the homogeneous state in characean cells (1988)
    Springer
    European biophysics journal 16 (1988), S. 11-21 
    Details
    ISSN: 1432-1017
    Schlagwort(e): Spatial pattern ; oscillation ; electric potential ; self-organization ; dissipative structure ; Chara
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Physik
    Notizen: Abstract Electric spatial patterns of bands formed along the cell wall of the characean internode were studied using a multi-electrode measuring system. The electric potential near the surface of the cell was measured by arranging about 25 electrodes along the cell at approximately 1.6 mm intervals. Since the time required for one scan over the cell length is only 1 s, the temporal change in the spatial pattern of surface electric potential can be readily observed. Oscillations were sometimes found as the electric pattern started to appear after the cell was illuminated. Fourier analysis shows that a single spatial mode arises gradually and then becomes stabilized in an oscillatory manner. A simple electric circuit model comprising three variables, i.e., a membrane potential, an electric current across the membrane and an electromotive force, can simulate well the oscillatory rise of bands. These results imply that the electric spatial pattern observed in characean internodes is a self-organized structure emerging far from equilibrium, known as a dissipative structure. Biophysical mechanisms of band formation are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00255321
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  • 9
    Digitale Medien
    Digitale Medien
    Ultrasound and CT diagnosis of intramural duodenal hematoma (1988)
    Springer
    Pediatric radiology 18 (1988), S. 167-168 
    Details
    ISSN: 1432-1998
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract An 8-year-old boy with traumatic duodenal hematoma is reported. Diagnosis is easy if one is familiar with its typical findings in modern imaging modalities.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02387565
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  • 10
    Digitale Medien
    Digitale Medien
    Immunocytochemical and ultrastructural characterization of human T-lymphotropic virus type I (HTLV-I)-producing rabbit lymphoid cell lines (1988)
    Springer
    Archives of virology 100 (1988), S. 245-254 
    Details
    ISSN: 1432-8798
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Fine structural and immunocytochemical characterization of rabbit lymphoid cell lines transformed by human T-lymphotropic virus type I (HTLV-I) was carried out. All nine cell lines tested were reactive with anti-HTLV-I-positive human, monkey, and rabbit sera and monoclonal antibody to HTLV-Ip 19, but not with anti-HTLV-I-negative sera and monoclonal antibodies to human Ia and pan-T antigens. All cell lines were strongly positive for monoclonal antibodies to rabbit Ia and pan-T antigens. Ultrastructurally, each cell line contained C-type virus particles in varying numbers in the extracellular space. These particles showed replication patterns similar to those in HTLV-I or simian T-lymphotropic virus type I (STLV-I)-producing human or monkey cells. In addition, anti-HTLV-I-positive rabbit serum gave positive immunoreactivity to HTLV-I or STLV-I by indirect immunoferritin method. These results indicate that the ultramorphology and replication patterns of HTLV-I in rabbit cell lines are indistinguishable from those of HTLV-I in human and monkey cell lines, HTLV-I in rabbit cells shares the common surface antigenic determinants with HTLV-I or STLV-I in human or monkey cells, and that these cells are definitely rabbit T cells bearing their own Ia antigens.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01487687
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