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  • 1
    Electronic Resource
    Electronic Resource
    Performance characteristics of a microwave plasma source using an axial mirror and multipole magnetic fields (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 1932-1938 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The performance characteristics of a microwave plasma source are presented. The plasma source consists of two chambers: chamber 1 generates a high-density plasma over which a magnetic field is applied at electron cyclotron resonance condition or greater, and chamber 2 makes the plasma uniform in its lower region by surrounding the peripheral region with magnetic multipole line-cusp fields. Plasma parameters were measured with a movable Langmuir probe located 1 cm above a plasma grid which is attached at the bottom of chamber 2. The dependence of plasma parameters on the magnetic field configuration, gas pressure and microwave power were examined, and radial distributions were measured. Uniform high-density plasmas over a 9-cm-diam area were produced on the plasma grid in a suitable magnetic field configuration, and uniformity was maintained over a wide pressure range. The uniform density region was determined by the magnetic multipole fields existing in chamber 2's peripheral region. The ion beam current density evaluated from the extracted ion beam correlated well with the ion saturation current density estimated from the plasma parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143307
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Morphology of molecular beam epitaxy grown NiAl on GaAs studied by scanning tunneling microscopy (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 69-71 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Extended terraces, steps along the 〈110〉 directions, and trenches between the terraces were observed on 100 nm thick NiAl films grown on GaAs by molecular beam epitaxy at 600 °C. Atomically smooth surfaces as large as 100 nm across could be obtained at this growth temperature, but at 450 °C, mounds rather than terraces were formed. We propose models for the formation of these features.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.109699
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    HighT c of YBa2Cu3O x implanted N2 (1990)
    Springer
    Journal of materials science 9 (1990), S. 253-254 
    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/10.1007/BF00725815
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  • 4
    Electronic Resource
    Electronic Resource
    HighT c of YBa2Cu3O7−y implanted oxygen (1990)
    Springer
    Journal of materials science 9 (1990), S. 909-911 
    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/10.1007/BF00722167
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  • 5
    Electronic Resource
    Electronic Resource
    Tritium concentrations of river water on northern and southern islands of Japan (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 150 (1991), S. 163-169 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Tritium concentrations were measured for river waters on two islands in Japan. Significant difference was observed on the distribution of tritium concentrations on both islands, the river water samples from the northern island had higher concentrations and the average was about twice compared to that from the southern island. Higher tritium concentration in precipitation and the larger area of the northern island would be responsible for higher tritium concentrations in river waters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02041499
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  • 6
    Electronic Resource
    Electronic Resource
    Cooling condition dependence on ion etching rate in a softmagnetic metallic glass (1992)
    Springer
    Journal of materials science 27 (1992), S. 4181-4183 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Taking into consideration the knock-on cascade mechanism and the free volume theory, the cooling condition dependentR s (ion etching rate) is investigated for a liquid-quenched Fe-10at%Si-15at%B alloy glass. A highR s is found in a slow cooled glass.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01105123
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  • 7
    Electronic Resource
    Electronic Resource
    Loss of99Tc from seaweeds in the course of dry ashing (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 155 (1991), S. 335-342 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Loss of99Tc in seaweed during dry ashing has been investigated. Two kinds of brown seaweeds labeled with99Tc were ashed for 24 or 48 h at 400, 450 and 500 °C, showing no correlation between the loss of99Tc and species, temperature and time of ashing. The averaged recovery of99Tc was 91.0±4.0%, indicating that most of the99Tc in the seaweed was retained within the matrix of the ash which was obtained under general conditions of ashing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02163880
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  • 8
    Electronic Resource
    Electronic Resource
    The relationship of voluntary running to fibre type composition, fibre area and capillary supply in rat soleus and plantaris muscles (1991)
    Springer
    European journal of applied physiology 62 (1991), S. 211-215 
    Details
    ISSN: 1439-6327
    Keywords: Voluntary running ; Soleus muscle ; Plantaris muscle ; Fibre type composition ; Fibre area ; Capillary supply ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty 4-week-old Wistar rats exercised voluntarily in running wheels each day for 45 days. Fibre type composition, fibre cross-sectional area and the number of capillaries around a fibre of the slow-twitch soleus and fast-twitch plantaris muscles were examined and compared with animals which had no access to running wheels. The exercise group had a higher percentage of fast-twitch oxidative glycolytic (FOG) fibres and a lower percentage of fast-twitch glycolytic (FG) fibres in the deep portion of the plantaris muscle. The area of FOG fibres in the surface portion of the plantaris muscle was also greater in the exercise group. In the exercised animals, there was a positive relationship between the running distance and the area of FOG fibres in both the deep and surface portions of the plantaris muscle. In addition, the running distance correlated positively with the percentage of FOG fibres and negatively with that of FG fibres in the deep portion of the plantaris muscle. There were no relationships between the running distance and fibre type composition, or fibre area and capillary supply in the soleus muscle. These results suggested that the increase in the percentage and area of FOG fibres in the fast-twitch muscle was closely related to voluntary running.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00643744
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