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  • 1985-1989  (6)
  • 1965-1969  (7)
  • 1905-1909  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    α-(γ-AMINOBUTYRYL)-LYSINE IN MAMMALIAN BRAIN: ITS IDENTIFICATION AND DISTRIBUTION (1969)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of neurochemistry 16 (1969), S. 0 
    Details
    ISSN: 1471-4159
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Abstract— α-(γ-Aminobutyryi)-lysine was identified in rabbit brain. This compound was detected exclusively in the brain of mammals, but not in other tissues. It is not concentrated in any particular region of the rabbit brain.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1471-4159.1969.tb10382.x
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  • 2
    Digitale Medien
    Digitale Medien
    Disulfide Reactive with Sulfite in Native Serum Albumin* (1965)
    s.l. : American Chemical Society
    Biochemistry 4 (1965), S. 2389-2394 
    Details
    ISSN: 1520-4995
    Quelle: ACS Legacy Archives
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/bi00887a019
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  • 3
    Digitale Medien
    Digitale Medien
    Dependence of magnetic properties of Co-Pt films on sputtering conditions (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 4022-4024 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Magnetic properties, Young's modulus, and corrosion resistance of Co-Pt films deposited by targets-facing type of sputtering (TFTS) have been investigated. The films deposited at a Ar gas pressure PAr of 2 mTorr present good surface smoothness and dense texture. The c axis of the hexagonal crystallites in the film orients normal to the film plane. The films have nearly the same value of Young's modulus (≈17×1011 dyn/cm2) as that of the bulk Co-Pt alloy. On the other hand, the films deposited at PAr of 30 mTorr exhibit rough surface and columnar structure and do not exhibit any preferred orientation of crystallites. In addition, they have a small value of Young's modulus (≈5×1011 dyn/cm2) and poor corrosion resistance compared with the film deposited at low PAr. They have coercive force Hc larger than 1 kOe, which is mainly caused by their porous structure. Besides, the Co-Pt films have large in-plane uniaxial magnetic anisotropy, which is caused by both dc magnetic field applied to substrate during deposition and oblique incidence of sputtered particles upon substrate.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.334658
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  • 4
    Digitale Medien
    Digitale Medien
    Effect of additional element (Fe, Zr, Ta) for Co-Cr films deposited by targets facing type of sputtering (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 4019-4021 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: In order to improve both magnetic properties and wear resistance of Co-Cr films for perpendicular magnetic recording media, the effect of the addition of a small amount of Fe, Zr, and Ta to the Co-Cr binary alloy films has been investigated. They were deposited with a targets facing type sputtering (TFTS) apparatus. (i) The addition of a small amount of Fe (〈5 at. %) causes a significant decrease of the effective perpendicular magnetic anisotropy K⊥ (K⊥=Ku−2πM2s). The K⊥ has a negative value at Fe content above 1 at. %. Consequently, the recording characteristics become worse as Fe content increases. (ii) The addition of Zr leads to a remarkable decrease of grain size and improvement of surface smoothness along with an increase of wear resistance. It also causes evident decrease in Ku and saturation magnetization Ms. However, both K⊥ and remanence ratio Mr⊥/Mr(parallel) are increased by the addition of a small amount of Zr up to 0.5 at. %, though they decrease steeply with further increase of Zr content above 1 at. %. (iii) The addition of Ta shows almost the same tendency as Zr for the film structure and wear resistance. It also causes the decrease of Ku. But the K⊥ increases with an increase of Ta content up to 0.5 at. % and takes nearly constant value at Ta content above 0.5 at. %, since the Ms of the film decreases remarkably as Ta content increases. Mr⊥/Mr(parallel) increases gradually from 2.5 to 3.6 as Ta content increases. Consequently, the addition of a small amount of Ta is effective for improving both recording characteristics and wear resistance.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.334657
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  • 5
    Digitale Medien
    Digitale Medien
    Ba–ferrite thin-film disk for perpendicular magnetic recording (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 4040-4042 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The authors have prepared Ba–ferrite film disks and evaluated their magnetic read/write characteristics. The c-axis-oriented Ba–ferrite thin films were formed epitaxially on c-axis-oriented ZnO films by means of a targets-facing-type sputtering system. The direction of easy magnetization in the film with perpendicular crystalline anisotropy is almost perpendicular to the film plane. Thus, the perpendicular remanence is more than 60 times as large as the in-plane one. The simple Ba–ferrite films, however, have a coercive force, Hc⊥ above 2 kOe which is too large to write on by means of a conventional head. The substitution of In3+ in the Ba–ferrite films makes the Hc⊥ values decrease to about 1 kOe without increasing the critical temperature, Tcritical, of c-axis orientation. The read/write characteristics of the films were measured with a MnZn–ferrite ring head. The reproduced signal exhibits clear dipulsive waveforms as the dipulse ratio exceeds 0.7. Furthermore, the overwrite ratio decreases below −28 dB for the In3+-substituted Ba-ferrite film disk. The Ba–ferrite film disks have promising potential as a high-density perpendicular magnetic recording medium.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.334664
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  • 6
    Digitale Medien
    Digitale Medien
    Observation of a New X-ray Source (1969)
    [s.l.] : Nature Publishing Group
    Nature 224 (1969), S. 784-785 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Our instrument was composed of two proportional counters (A and B) filled with Xe-methane gas at 330 mm Hg. The depth of the counter was 5 cm and the effective area of each 110?m Be window was 40 cm2. Each counter had cellular collimators and was shielded by veto-counters to reduce spurious counts. ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/224784a0
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  • 7
    Digitale Medien
    Digitale Medien
    Measurement of the absolute intensity of cosmic X-rays (1969)
    Springer
    Astrophysics and space science 4 (1969), S. 44-63 
    Details
    ISSN: 1572-946X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The intensity of the diffuse component of cosmic X-rays was measured with use of a rotating collimator system borne on a sounding rocket. A part of background counts proportional to the field of view of proportional counters enabled us to determine the intensity of the diffuse component to be 0.66±0.07 photons cm−2 sec−1 keV−1 in the energy range between 3.6 and 9.0 keV. The spectrum in this energy range was found to be comparatively flat. The intensity of Sco X-1 was also measured and its time variation was investigated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00651262
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  • 8
    Digitale Medien
    Digitale Medien
    Über Gewebsveränderungen des verlagerten Hodens, Nebenhodens und Samenleiters (1905)
    Springer
    Virchows Archiv 180 (1905), S. 484-499 
    Details
    ISSN: 1432-2307
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01967907
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  • 9
    Digitale Medien
    Digitale Medien
    Discovery of an unusual hard X-ray source in the region of supernova 1987A (1987)
    [s.l.] : Nature Publishing Group
    Nature 330 (1987), S. 230-231 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] We have been regularly observing SN1987A from the X-ray astronomy satellite Ginga1'2 since 25 February 1987, immediately following the optical discovery2'3. Ginga carries a set of proportional counters of 4,000 cm2 effective area and a field of view of 2°x4° full width. SN1987A (hereafter ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/330230a0
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  • 10
    Digitale Medien
    Digitale Medien
    Possible Models for X-Ray Source, SCO-X -I (1966)
    [s.l.] : Nature Publishing Group
    Nature 212 (1966), S. 885-886 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A CELESTIAL X-ray source, SCO-X-l, is the strongest X-ray source yet identified and its astronomical and physical nature has been the subject of much speculation. Recently considerable progress in this field was made possible by the finding of its optical counterpart1. The properties of the source ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/212885a0
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