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  • 1
    Electronic Resource
    Electronic Resource
    Mais plus ça change... (1987)
    [s.l.] : Nature Publishing Group
    Nature 325 (1987), S. 10-10 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR-In his astonishingly accurate book Anticipations (of the reaction of mechanical and scientific progress upon human life and thought) (1904), H.G. Wells predicted many of the major technical discoveries with which we are now familiar.However, he also anticipated then what would later become ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/325010e0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structuration (1973)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 6 (1973), S. 284-289 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: An outline is given of the Birkbeck programme of work describing the statistics of regular (crystal) structures and the regularities of statistical (liquid and glass) structures in reaction to the tendency to regard all structures as crystalline but with imperfections. Central to this is the development of the description of arrangements of atoms in terms which do not depend on arbitrary axes. Attempts are made to show crystal structure in the wider context of large-scale biological and other structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889873008691
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  • 3
    Electronic Resource
    Electronic Resource
    A comment on the close-packing of hyperspheres (1976)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 32 (1976), S. 923-923 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The packing of hyperspheres in more than three dimensions is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739476001885
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  • 4
    Electronic Resource
    Electronic Resource
    The closest packing of equal spheres on a spherical surface (1977)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 98-100 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: A table is given of putative solutions to the Fejes problem: to find the maximum value of the smallest angular distance between any two of N points movable on the surface of a sphere. Values of N run without omission up to 27 with six sporadic cases thereafter. Some applications of this system as a model are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739477000205
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  • 5
    Electronic Resource
    Electronic Resource
    The generalized inverse and inverse structure (1977)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 212-215 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: When a structure in one space is projected or mapped or otherwise described in another space or 'language', then the transformation is usually irreversible. In the case of linear transformations a generalized inverse matrix exists even if the transformation matrix is rectangular or singular. This inverse represents the best that can be done by way of reverse transformation. Typical crystallographic applications of this inverse are developed. Some are in practical computing, where failures due to singularity of a matrix can be avoided. Others are in the theoretical treatment of redundant axes, such as are usual in the description of hexagonal crystals using four indices and four axes. The idea of the inverse of a set of crystallographic axes, normally the reciprocal axes, can be extended to the concept of the inverse of any set of coordinates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739477000436
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  • 6
    Electronic Resource
    Electronic Resource
    Structures in nature as a strategy for design by P. Pearce (1979)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 35 (1979), S. 510-510 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739479001212
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  • 7
    Electronic Resource
    Electronic Resource
    Preparation of β-CsCl at room temperature and its oriented transformation to α-CsCl (1971)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 4 (1971), S. 175-175 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The polymorphic phase transformation of CsCl has been investigated by a single-crystal electron diffraction technique. It is observed that the β to α transformation is oriented but the reverse one is not oriented. The observed orientation relationship is not in accord with that proposed by Buerger.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889871006587
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  • 8
    Electronic Resource
    Electronic Resource
    Handbook for the X-ray investigation of minerals edited by V. A. Frank-Kamenetskij (1976)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 9 (1976), S. 514-514 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889876012181
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  • 9
    Electronic Resource
    Electronic Resource
    Simulation of industrial furnacing with powder X-ray diffraction (1984)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 17 (1984), S. 96-99 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: By adapting a Guinier–Lenné high-temperature powder X-ray diffraction camera to include a gas rinsing system and a specially designed mini-environmental cell, the conditions of industrial furnacing can be more realistically simulated. These modifications are described together with an illustration of their successful use with ultramarine, a blue pigment produced by industrial furnacing. The method described is particularly suitable when problems of size scale and volatilization cannot otherwise be overcome.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889884011055
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  • 10
    Electronic Resource
    Electronic Resource
    Crystal structure compendium (1977)
    [s.l.] : Nature Publishing Group
    Nature 269 (1977), S. 452-452 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE are much indebted to A. F. Wells for his massive volumes of Structural Inorganic Chemistry which systematise the spatial arrangements of atoms in crystalline inorganic solids. Professor Wells has now taken the topological material involved in these structures and examined it in greater detail. ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/269452a0
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