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  • 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
    Magnetic and other properties and sputtering behavior of Co-base amorphous alloy films (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 2983-2992 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Magnetic and other properties of Co-base amorphous alloy films prepared by sputtering are investigated. A detailed magnetic phase diagram with saturation magnetic flux density, crystallization temperature, and zero-magnetostrictive line on Co-Ta-Zr amorphous alloys were obtained, and the technical knowhow to make a film with well-reproducible characteristics by widely changing the sputtering conditions was related with these physical properties. Especially on alloy sputtering, a phenomenological model for elucidating a composition difference between film and target is presented. After these studies, the film characteristics of Bs=12 kG, Tx=450 °C, ||λs||〈10−8, Hc〈10 mOe, and permeabilities of μ(1 MHz)=7000, μ(100 MHz)=2000 for the single film of 2 μm in thickness and of μ(1 MHz)=4000, μ(100 MHz)=800 for the insulator-sandwiched multilayered film of 10 μm are obtained, and these well-balanced values enable us to apply the materials for high-frequency recording head.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.337848
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  • 4
    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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  • 5
    Digitale Medien
    Digitale Medien
    Charge exchange neutral particle mass and energy analyzer for the JT-60 tokamak (1985)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 359-363 
    Details
    ISSN: 1089-7623
    Quelle: AIP Digital Archive
    Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: Design considerations and experimental results are described for a charge exchange neutral particle mass and energy analyzer for JT-60, which analyzes H, D, and He simultaneously up to a maximum energy of 110 keV. The analyzer has separately a 180° deflection magnet for momentum analysis and an electrostatic deflector for mass analysis. The way to control the effect of the electric fringe fields in order to expand the detectable energy range is studied by numerical simulation. The deflector is then designed, made of two triangular plates and three additional electrodes for the control of the fringe fields. The effect of the deflector is demonstrated experimentally. Energy and mass resolution and the relation between the incident ion energy and the magnetic field strength are measured. The results of the calibration experiments agree with the designed value.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.1138303
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  • 6
    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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  • 7
    Digitale Medien
    Digitale Medien
    New crystalline soft magnetic alloy with high saturation magnetization (invited) (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 3514-3519 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Extensive study was made on Fe-base crystalline alloys in search for new soft magnetic materials with high saturation magnetization by means of sputtering technique. It revealed that newly found FeGaSi and FeAlGe alloy systems possessed excellent soft magnetic properties with remarkably higher saturation magnetization. These new alloy films, annealed in vacuum at 500 °C for 1 h, show the magnetic properties of Bs=13 and 15 kG, Hc=0.09 and 0.20 Oe, and μ1 MHz=2000 and 1800 for the FeGaSi and FeAlGe alloy films of 2 μm in thickness, respectively. These values are superior to those of FeAlSi (sendust) alloy which is a typical soft magnetic material with high saturation magnetization. Results of the Co-added systems of FeCoGaSi and FeCoAlGe alloys are also presented. Discussions are given on various systems of Fe base crystalline alloy films studied, which are classified into four types of groups with respect to magnetic softness.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.338712
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  • 8
    Digitale Medien
    Digitale Medien
    Soft magnetic Fe-Al-N/Si-N multilayered film with high thermal stability (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 1181-1182 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: An attempt to obtain soft magnetic materials with high saturation magnetic flux density and thermal stability has been carried out with respect to a multilayered type of films containing Fe-N prepared by two-source magnetron rf sputtering. The addition of small amounts of elements such as Al is effective in improving soft magnetic properties of Fe-N films. Multilayered films of Fe-Al-N intervened by thin Si-N layers showed softer magnetic properties than the Fe-Al-N single layer films and also showed high thermal stability. Typically, Fe-Al-N (500 A(ring))/Si-N (12 A(ring)) multilayered films exhibited a saturation magnetic flux density of 20 kG, a coercivity Hc of 0.3 Oe, and a permeability μ of 1900 at 5 MHz after annealing at 550 °C for 1 h.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.101561
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  • 9
    Digitale Medien
    Digitale Medien
    DIURETIC EFFECT INDUCED BY INTRARENAL INFUSION OF NISOLDIPINE IN ANAESTHETIZED DOGS (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 16 (1989), S. 0 
    Details
    ISSN: 1440-1681
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: 1. Renal effects of nisoldipine, a potent calcium channel blocker, were examined in anaesthetized dogs.2. Intrarenal arterial infusion of nisoldipine (10, 50 ng/kg per min) did not influence mean systemic blood pressure and renal haemodynamics, but did cause dose-related increases in urine flow and urinary excretion of electrolytes. During nisoldipine infusion at the higher dose, the levels of fractional excretion of sodium, potassium and chloride were significantly elevated.3. In the lithium clearance study, fractional lithium excretion, an index of fractional sodium excretion in the proximal tubules, was unchanged even with the higher dose of nisoldipine, whereas fractional sodium excretion in the distal tubules markedly increased.4. Nisoldipine elicited a significant increment in osmolar clearance without altering the reabsorption of free water.5. Thus, intrarenal administration of nisoldipine at a non-hypotensive dose to anaesthetized dogs produced a significant diuretic effect without alteration in renal haemodynamics. Results in lithium clearance and free water clearance studies suggest that nisoldipine exerts a diuretic action by inhibiting sodium transport at the distal nephron segments beyond the proximal tubules.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1440-1681.1989.tb01626.x
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  • 10
    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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