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  • 1
    Electronic Resource
    Electronic Resource
    Saturation and isotope mixing during low-temperature implantations of hydrogen into metals (1982)
    Springer
    Applied physics 27 (1982), S. 19-29 
    Details
    ISSN: 1432-0630
    Keywords: 61.70.Tm ; 61.70.Wp ; 61.80.Jh.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Deuterons of 10 keV energy and protons with the same mean projected range have been implanted into several metals at a temperature of approximately 35 K and at dose rates of approximately 2 × 1014 cm−2 s−1. The amount of retained deuterium saturates at fluences larger than roughly 2 × 1018 cm−2. After implantation of deuterons and subsequent bombardment with protons, the deuteron depth profiles show characteristic double peak structures, which indicate a replacement process. The experimental data are in good agreement with a simple model of local saturation and mixing. The possible implications of this model are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01197542
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  • 2
    Electronic Resource
    Electronic Resource
    Amorphization of Fe/Al: bulk and thin-film effects (2000)
    Springer
    Applied physics 71 (2000), S. 47-54 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 68.55.-a; 61.82.Bg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The amorphous non-equilibrium state of the system Fe/Al is studied in bulk and thin-film systems. For bulk samples prepared by ion-beam mixing of laser-deposited multilayers, a bcc solid solution is found for alloys with up to 70 at. % Al. Around 75 at. % Al a Fe2Al5-like crystalline phase is found. An amorphous state with Fe2Al5-like short-range order is found for 80 at. % Al. In thin films, for example the amorphous Al-rich transition layer of a laser-deposited Fe/Al multilayer, the amorphous state can exist for up to 30 at. % Fe due to the high interfacial energy. By ion-beam mixing at low temperatures (about 140 K) an oversaturation with 40 at. % Fe can be achieved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050024
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  • 3
    Electronic Resource
    Electronic Resource
    Preparation of granular Co/Cu by ion-beam mixing of laser-deposited multilayers (2000)
    Springer
    Applied physics 71 (2000), S. 105-107 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 68.55.-a; 61.82.Bg; 81.40.Rs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. Co/Cu multilayers were prepared by crossed-beam pulsed laser deposition and characterized by high-angle X-ray diffraction, as well as specular and non-specular reflection. Ion-beam mixing of the multilayers with 150 keV Cu+ ions and a fluence of up to 5×1015 cm-2 leads to the formation of a granular system of superparamagnetic Co clusters in Cu, as shown by magnetic measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050035
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  • 4
    Electronic Resource
    Electronic Resource
    Protein synthesis in Artemia salina (1981)
    Springer
    Molecular biology reports 7 (1981), S. 197-202 
    Details
    ISSN: 1573-4978
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract It is thought that eucaryotic elongation factor eEF-Ts catalyzes the replacement of GDP for GTP on eucaryotic elongation factor eEF-Tu. We have found that eEF-Ts displays a strong nucleoside diphosphate phosphotransferase activity. This transferase activity resides in a dimer molecule of a subunit molecular weight close to 30,000. The transfosforylating activity of eEF-Ts results in a stimulatory effect of ATP, GTP, UTP and CTP on protein synthesis provided that GDP is present. The specificity for guanine nucleotides in protein synthesis resides only in eEF-Tu.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00805752
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  • 5
    Electronic Resource
    Electronic Resource
    On the role of laminate architecture in thin films synthesized by ion beam assisted deposition (2000)
    Springer
    Journal of materials science 19 (2000), S. 485-487 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006793318213
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  • 6
    Electronic Resource
    Electronic Resource
    Uptake and transport of immunoglobulin by the chick choroid plexus (1980)
    Springer
    Cell & tissue research 213 (1980), S. 393-410 
    Details
    ISSN: 1432-0878
    Keywords: Choroid plexus ; 5S-antibody (immunoglobulin) ; Immunoelectron microscopy ; Chick ; Tissue culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The choroid plexus from the lateral ventricles of 18-day chick embryos was cultivated as an organ in medium 199 until the degeneration of the stroma. Selected plexuses forming an empty epithelial sac were then incubated with enzyme-treated human immunoglobulin (5S-antibody) and with native human immunoglobulin (7S-antibody). Uptake of the 7S-antibody was observed after 30 min, whereas the 5S-antibody was taken up by the choroid plexus within 1 min, as demonstrated by means of the peroxidase-anti-peroxidase (PAP) technique (Sternberger 1974). The antibodies were located in conspicuous, large vacuoles of the choroid epithelium. Further experiments were performed using only 5S-antibody. In addition to the demonstration of the protein structure of this immunoglobulin, it was also shown that its binding capacity for tetanus toxoid as an antigen remains intact in the intracellular location. It was not possible to observe lysosomal degradation. Moreover, 5S-antibody was detectable in cultures first incubated with 5S-antibody for 30 min and subsequently in antibody-free medium for a further period of 7 to 11 days. The biological significance of the uptake of material from the cerebrospinal fluid and the possibility of the existence of a receptor for 5S-antibody are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00237886
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