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  • 1
    Electronic Resource
    Electronic Resource
    Measurement of the photon field, E〉150 eV on Sandia's Z Facility : Proceedings of the 12th topical conference on high temperature plasma diagnostics (1999)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 70 (1999), S. 553-556 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The Z Facility at Sandia National Laboratories utilizes z-pinch implosions to produce up to 2 MJ of x rays. On Z, bremsstrahlung radiation is produced in various parts of the machine as a product of both power flow electrons and those accelerated in the pinch region. An understanding of the energy spectra and intensity of this radiation is important to both the explanation of the z-pinch physics and the design of new diagnostics. A technique has been developed using a differential absorption spectrometer to measure the photon field for energies greater that 150 eV for bremsstrahlung from the z-pinch or the vacuum transmission lines. This article describes the techniques and results used to date. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1149353
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  • 2
    Electronic Resource
    Electronic Resource
    Mechanism of Metallic Friction (1942)
    [s.l.] : Nature Publishing Group
    Nature 150 (1942), S. 197-199 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AN experimental investigation of the kinetic friction of non-lubricated metals has shown that, in general, friction cannot be regarded as a surface effect. Penetration and distortion occur to some depth beneath the surface, and the frictional force and the nature of sliding are both influenced by ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/150197a0
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  • 3
    Electronic Resource
    Electronic Resource
    The frictional anisotropy of diamond (1980)
    [s.l.] : Nature Publishing Group
    Nature 283 (1980), S. 51-52 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experiments were carried out with a very simple apparatus and involved the sliding of diamond styli over the polished (001) surface of Type I and Type II diamond. The flat surface was cleaned in air with solvents so that it was covered with oxygen and possibly other adsorbed contaminants. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/283051a0
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  • 4
    Electronic Resource
    Electronic Resource
    Hydrostatic pressure and long-chain organic molecule diffusion through a polymer matrix (1980)
    [s.l.] : Nature Publishing Group
    Nature 286 (1980), S. 372-373 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The experiments were carried our using ICI Alkathene 11/01 branched polyethylene as the matrix. The diffusants were stearamide (CH3(CH2)16CONH2) with 18 backbone atoms and behenyl behenate (CH3(CH2)2oCOOCH(CH2)2oCH3) with 45 units counting the oxygen in the ester linkage. Cylindrical specimens were ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/286372a0
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  • 5
    Electronic Resource
    Electronic Resource
    Creep and Friction of Ice (1970)
    [s.l.] : Nature Publishing Group
    Nature 228 (1970), S. 137-139 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The creep of polycrystalline ice in uniaxial compression has been studied over a very wide range of strain rates. The creep is far too slow to explain the friction of ice observed at very low sliding speeds, but experiments with single crystals show that sliding produces recrystallization at the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/228137a0
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  • 6
    Electronic Resource
    Electronic Resource
    Lubrication of Metal Surfaces by Fatty Acids (1945)
    [s.l.] : Nature Publishing Group
    Nature 156 (1945), S. 97-101 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN surfaces in relative motion are separated by a fluid layer of appreciable thickness, the resistance to motion is due to the viscosity of the interposed layer. This type of lubrication is essentially a problem in hydrodynamics; the friction is very small and there is no wear of the moving ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/156097a0
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  • 7
    Electronic Resource
    Electronic Resource
    Phase transitions and indentation hardness of Ge and diamond (1978)
    [s.l.] : Nature Publishing Group
    Nature 273 (1978), S. 406-406 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SINCE publication of our letter1 on phase transitions and indentation hardness of Ge, Si and diamond our attention has been drawn to the paper by Gridneva et al.2 on the hardness of diamond-like solids. They directly confirm the formation of a metallic phase below the indenter due to the high ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/273406a0
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  • 8
    Electronic Resource
    Electronic Resource
    Reaction of Stearic Acid Monolayers with Copper and Cuprous Oxide (1954)
    [s.l.] : Nature Publishing Group
    Nature 174 (1954), S. 507-508 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1.Approximate lattice arrangement: x, copper atoms in (111) face of copper oxide ; O, fatty acid molecules in basal plane of fatty acid lattice. The difficulty of obtaining effective chemical reaction between adsorbed fatty acids and metal oxide surfaces has also been observed by Tingle4, by ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/174507b0
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of Temperature on Lubricant Films (1940)
    [s.l.] : Nature Publishing Group
    Nature 145 (1940), S. 308-308 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE friction apparatus developed by Bowden and Leben1,2 has shown that when clean steel surfaces slide on one another, the motion is not smooth but proceeds in a series of irregular jerks. This apparatus has also been used for comparing the lubricating properties of various ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/145308a0
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  • 10
    Electronic Resource
    Electronic Resource
    Desorption or ‘Surface Melting’ of Lubricant Films (1941)
    [s.l.] : Nature Publishing Group
    Nature 147 (1941), S. 609-610 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A RECENT communication1 has described the effect of temperature on the lubricating properties of mineral oils. The apparatus used for the experiments was that devised by Bowden and Leben for analysing the frictional force between sliding surfaces. In this apparatus the bottom ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/147609a0
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