منابع مشابه
HEXA: Compact Data Structures
Data structures representing directed graphs with edges labeled by symbols from a finite alphabet are used to implement packet processing algorithms used in a variety of network applications. In this paper we present a novel approach to represent such data structures, which significantly reduces the amount of memory required. This approach called History-based Encoding, eXecution and Addressing...
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In the cyclo-hexa-meric centrosymmetric title compound, [Sn(6)(C(6)H(5))(6)(C(14)H(11)O(2))(6)O(6)], each bridging oxide O atom is connected to three Sn atoms and each carboxyl-ate group bridges a pair of Sn atoms so that the three independent Sn atoms all adopt SnCO(5) distorted octa-hedral geometries, resulting in a drum-shaped Sn(6)O(6) core.
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In the title organic-inorganic hybrid compound, (C(4)H(10)NO)(3)[H(6)CrMo(6)O(24)]·4H(2)O, the Anderson-type [H(6)CrMo(6)O(24)](3-) polyoxoanion is centrosymmetric, with the Cr(III) ion lying on an inversion center. One of the two crystallographiclly independent morpholinium cations is half-occupied. Inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the cations, polyoxoanions and uncoordinate...
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The title mol-ecule, C(18)H(24)O(12), has crystallographic 2/m symmetry with two acetate group located on a mirror plane. The H-Csp(3)-O-Csp(2) torsion angles characterizing orientation of the acetyl groups with respect to the cyclo-hexane ring are 0.0, 23.9 and -23.9°. The cyclo-hexane ring is in a chair conformation with all substituents in equatorial positions. In the crystal, mol-ecules are...
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ژورنال
عنوان ژورنال: NTM Zeitschrift für Geschichte der Wissenschaften, Technik und Medizin
سال: 2009
ISSN: 0036-6978,1420-9144
DOI: 10.1007/s00048-008-0326-x