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  • Springer  (8)
  • Nature Publishing Group  (6)
  • Hindawi  (1)
  • Oxford : Clarendon Press  (1)
  • 1
    Monographie ausleihbar
    Monographie ausleihbar
    Conduction of heat in solids (2008)
    Oxford : Clarendon Press
    Details Verfügbarkeit
    Signatur: M 92.1350 ; M 01.0252 ; M 09.0050
    Materialart: Monographie ausleihbar
    Seiten: x, 510 S.
    Ausgabe: 2nd ed., repr.
    ISBN: 0198533683 , 978-0-19-853368-9
    Klassifikation:
    C.3.7.
    Sprache: Englisch
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Sub-surface Temperatures on the Moon (1959)
    [s.l.] : Nature Publishing Group
    Nature 183 (1959), S. 1316-1317 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Information about the thermal conductivity near the surface is obtained from optical and radio microwave observations of the variation of the surface temperature during an eclipse or throughout a lunation. These yield a value of (Kpc)~112, where K, p and c are the thermal conductivity, density and ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1831316a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Nature of the Surface of the Moon (1950)
    [s.l.] : Nature Publishing Group
    Nature 166 (1950), S. 1026-1026 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] We made similar calculations in connexion with the microwave observations of Piddington and Minnett3, but have taken the matter a good deal further. In the accompanying graph, the dots show Pettit s4 observations of the 1939 eclipse, while curve I is calculated for a solid with (Kc)-1/2 = 1,030 : ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/1661026a0
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Production of Electron Pairs (1941)
    [s.l.] : Nature Publishing Group
    Nature 148 (1941), S. 86-86 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] SOME time ago we described a method1 for calculating rigorously (neglecting screening) the cross-section for production of electron-positron pairs in the field of a nucleus by a beam of γ-rays. This method also gave the energy distribution of the electrons or positrons. Results ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/148086b0
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    On Bremsstrahlung (1937)
    [s.l.] : Nature Publishing Group
    Nature 140 (1937), S. 108-109 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE method previously used1 to calculate the cross-section for pair production by a beam of y-rays has been extended to deal with transitions of a Dirac electron between two states of positive energy in a Coulomb field. It is thus theoretically possible to obtain an exact ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/140108b0
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Production of Electron Pairs (1936)
    [s.l.] : Nature Publishing Group
    Nature 137 (1936), S. 781-782 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN a recent paper1 we discussed the creation of positive-negative electron pairs by a beam of γ-rays traversing lead, with atomic number Z = 82. Results have since been obtained with Z = 50 and Z = 65 for γ-rays of energy hv = 3mc2. It is of interest to compare these with ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/137781b0
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  • 7
    Digitale Medien
    Digitale Medien
    Angular Distribution of Electron Pairs (1938)
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 573-573 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A NUMBER of experiments have been made on the angular distribution of electron-positron pairs liberated by a beam of γ-rays, but the results, where it is possible to compare, them, do not seem to be in agreement. It is therefore of interest to see what the theory predicts, and in the following ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/142573a0
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  • 8
    Digitale Medien
    Digitale Medien
    The frictional properties of joints in rock (1959)
    Springer
    Pure and applied geophysics 43 (1959), S. 148-158 
    Details
    ISSN: 1420-9136
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Summary The conditions for sliding over artificial joint surfaces have been studied experimentally by cutting rock cylinders at various angles to their axes and studying slip over these surfaces in a triaxial testing apparatus. The types of joint used were: (i) filled with plaster to simulate a soft joint filling, (ii) bare surfaces ground approximately flat, and (iii) natural surfaces across which shear failure had taken place. The results agreed reasonably well with the simple theory for a constant coefficient of friction. Measured coefficients of friction lie in the range 0.5–0.8 and differ by surprisingly little between the various surfaces. The surfaces across which sliding has taken place exhibit interesting slickenside phenomena. Subsidiary failures frequently occur which cut across the joint surfaces.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01993552
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  • 9
    Digitale Medien
    Digitale Medien
    The use of the cooling-history of thick intrusive sheets for the study of the secular variation of the earth's magnetic field (1956)
    Springer
    Pure and applied geophysics 35 (1956), S. 49-53 
    Details
    ISSN: 1420-9136
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Summary Numerical results are given which show the way in which thc Curie temperature moves inwards from the margin during the cooling of a thick intrusive sheet. The time taken to move from the margin to the centre varies as the square of the thickness of the sheet, being about 6500 years for a sheet 1000 m thick on reasonable assumptions as to the thermal properties of the material. This implies that the secular variation of the Earth's magnetic field over periods of time of 1000 years or more may be studied by measuring the directions of magnetisation at a series of points across the thickness of such a sheet. Some measurements on a Tasmanian sill about 430 m thick of Jurassic or Cretaceous age suggest a change from maximum to minimum inclination in a time of about 200 years. Since the margins of the sill are not available this figure may be considerably in error but the results suggest the general practicability of the method.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02122865
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  • 10
    Digitale Medien
    Digitale Medien
    Lees's topographic correction in heat flow and the geothermal flux in Tasmania (1963)
    Springer
    Pure and applied geophysics 54 (1963), S. 53-63 
    Details
    ISSN: 1420-9136
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geologie und Paläontologie , Physik
    Notizen: Summary Lees's topographic correction for a simple idealized hill is discussed and extended to a monoclinal structure. It is valuable as giving very simply the order of magnitude of the correction. A number of new measurements of temperature in Tasmanian boreholes has been made and the previous rather high value of over 2μ cal/cm2 sec for the heat flux has been confirmed. The variation of thermal conductivity through the thickness of a differentiated tholeiite sheet has been measured and found to be in reasonably good agreement with values calculated from chemical and modal analyses.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01988254
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