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  • Nature Publishing Group  (6)
  • American Institute of Physics (AIP)  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Magnetic behavior and morphology of evaporated Fe/Mo multilayered thin films (abstract) : 37th Annual conference on magnetism and magnetic materials (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 5985-5985 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Fe/Mo multilayered thin films were grown on oxidized Si substrates by UHV e-beam evaporation. Both magnetic and structural results obtained from SQUID magnetometry, magnetoresistance (MR), small-angle x-ray scattering, large-angle x-ray scattering, and cross-sectional high-resolution electron microscopy are reported. Fe (30 A(ring))/Mo films with Mo thickness ranging from 7 to 25 A(ring) display oscillatory interlayer magnetic coupling. The maximum low-temperature negative MR is 2% for 11 A(ring) Mo layer thickness, while the minimum MR is 0.1% for 16 A(ring) Mo layer thickness. A series of Fe (30 A(ring))/Mo (11 A(ring)) films were grown at substrate temperatures (Ts) ranging from 150 to 475 K. Films grown at low Ts exhibit decreased coherence length and increased layer roughness, but only moderately reduced saturation field (Hs) and MR. Films grown at high Ts exhibit increased coherence length, increased interface thickness, and greatly reduced Hs and MR. Structural models for these films will be presented and correlated with magnetization and MR results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.353492
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  • 2
    Electronic Resource
    Electronic Resource
    Real gas effects on hypersonic boundary-layer stability (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 803-821 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: High-temperature effects alter the physical and transport properties of a gas, air in particular, due to vibrational excitation and gas dissociation, and thus the chemical reactions have to be considered in order to compute the flow field. Linear stability of high-temperature boundary layers is investigated under the assumption of chemical equilibrium and this gas model is labeled here as "real gas model.'' In this model, the system of stability equations remains of the same order as for the perfect gas and the effect of chemical reactions is introduced only through mean flow and gas property variations. Calculations are performed for Mach 10 and 15 boundary layers and the results indicate that real gas effects cause the first mode instability to stabilize while the second mode is made more unstable. It is also found that the second mode instability shifts to lower frequencies. There is a slight destabilizing influence of real gas on the Goertler instability as compared to the perfect gas results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.858012
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of Total Body Radioactivity Using Liquid Scintillation Detectors (1953)
    [s.l.] : Nature Publishing Group
    Nature 172 (1953), S. 521-523 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the course of developing equipment for other problems1, we have made some measurements of the total radioactivity content of several humans and a dog, using a technique which may have other applications in biophysics. The equipment used consists of a liquid scintillation detector in the shape of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/172521a0
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  • 4
    Electronic Resource
    Electronic Resource
    Biochemical Balance and Synchronized Cell Cultures (1967)
    [s.l.] : Nature Publishing Group
    Nature 215 (1967), S. 1083-1084 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] These conclusions are based on the Campbell definition2 that "growth is balanced over a time interval if, during the interval, every 'extensive' property of the system increases by the same factor". For large populations with an invariant distribution of ages, this formulates the results expected ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2151083a0
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  • 5
    Electronic Resource
    Electronic Resource
    Cæsium-137 Content of Lambs (1963)
    [s.l.] : Nature Publishing Group
    Nature 199 (1963), S. 294-294 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The caesium content of the 10 live lambs and their components are presented in Table 1. The increase in the caesium/potassium ratio which was recorded after the lambs had been washed resulted from the removal of a large amount of potassium from the surface of the lambs by the washing process1. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/199294a0
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  • 6
    Electronic Resource
    Electronic Resource
    Correlation of Total Body Potassium with Body-Water (1956)
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 97-98 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Using the Los Alamos human counter2, which permits the determination of total body gamma activity to a precision of 5 per cent in less than 5 min., we have measured more than a hundred subjects with body-weights ranging from 40 to 240 Ib. The body-water contents of a selected group of these ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/178097a0
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  • 7
    Electronic Resource
    Electronic Resource
    Quantity Production of Synchronized Mammalian Cells in Suspension Culture (1964)
    [s.l.] : Nature Publishing Group
    Nature 203 (1964), S. 642-643 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Induction of partial synchrony in Chang appendix cell monolayers by reversibly inhibiting DNA synthesis with excess deoxynucleosides was initially reported by Xeros1. Recently, Puck2 (using HeLa cells) and Bootsma et al.3 (using heteroploid human kidney cells) showed independently that synchrony in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/203642a0
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  • 8
    Electronic Resource
    Electronic Resource
    Characterization of a seal morbillivirus (1988)
    [s.l.] : Nature Publishing Group
    Nature 336 (1988), S. 115-115 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIRá€"Recent reports have provided evidence that canine distemper virus (CDV) may be the cause of the recent epizootic of seal deaths in the Baltic and North Sea1 \ CDV is one of four known viruses which form the morbillivirus genus of the family Paramyxoviridae. The other three ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/336115a0
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