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  • 36.40  (4)
  • (Pigeon heart)  (1)
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Keywords
Publisher
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  • 1
    Electronic Resource
    Electronic Resource
    Mass isolation of cell surface membrane fragments from pigeon heart
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 553 (1979), S. 197-212 
    Details
    ISSN: 0005-2736
    Keywords: (Pigeon heart) ; ATPase ; Cell surface ; Concanavalin A binding ; Membrane fragment isolation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0005-2736(79)90225-6
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  • 2
    Electronic Resource
    Electronic Resource
    Interaction of CO with silver clusters: Dependence on cluster size (1993)
    Springer
    The European physical journal 26 (1993), S. 162-164 
    Details
    ISSN: 1434-6079
    Keywords: 36.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The interaction of matrix-isolated silver clusters with CO has been investigated for clusters containing as few as 100 atoms/cluster. A vibrational mode at a monolayer coverage, which is found on bulk silver at 2110 cm−1, is present even for these small particles. For these small-sized particles however, an additional, broad, unresolved band at 1950 cm−1 appears, which does not exist for larger clusters. Whether this band has its origin in a modified chemical behaviour for particles smaller than 100 at/cl is not clear.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425651
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  • 3
    Electronic Resource
    Electronic Resource
    Structure of Ag, Fe and Ge microclusters (1989)
    Springer
    The European physical journal 12 (1989), S. 103-105 
    Details
    ISSN: 1434-6079
    Keywords: 36.40 ; 78.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The structures of Ag, Fe and Ge microclusters were determined using EXAFS. The measurements were performed over a wide range of clusters sizes. The clusters were prepared using the gas aggregation technique and isolated in solid argon at 4.2 K. The measurements were performed at the National Synchrotron Light Source (NSLS) at beam line X-18B. A strong contraction of the interatomic distances was observed for Ag dimers and multimers. Silver clusters larger than 12 A mean diameter show a small contraction of thenn distance and a structure consistent with an fcc lattice. By contrast clusters smaller than 12 A show the presence of a small expansion and a strong reduction or absence ofnnn in the EXAFS signal. This points towards a different crystallographic structure for Ag microclusters with diameter less than 12 A. In iron clusters we observe a gradual reduction of thenn distance as the cluster size decreases. The interatomic distance for iron dimers was determined to be 1.94 A, in good agreement with earlier measurements. The iron microclusters show a bcc structure down to a mean diameter of 9 A. Iron clusters with 9 A mean diameter show a structure inconsistent with a bcc lattice. The new structure is consistent with an fcc or hcp lattice. The measurements on Ge clusters show the presence of only nearest neighbors. There was clear evidence of temporal annealing as determined by variations in the near edge structure of the K-absorption edge. Absorption edge measurements were also performed for free Ge clusters travelling perpendicular to the direction of the synchrotron radiation beam. The measurements performed on the free clusters were consistent with those obtained for matrix isolated clusters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426915
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  • 4
    Electronic Resource
    Electronic Resource
    An optical method for temperature measurement of silver clusters (1993)
    Springer
    The European physical journal 26 (1993), S. 115-117 
    Details
    ISSN: 1434-6079
    Keywords: 36.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Generating silver clusters by means of the gas aggregation technique, we have observed that in addition to larger clusters, a substantial amount of silver dimers is always present. This allows us to determine the vibrational population in the electronic ground state and, hence, the vibrational temperature of Ag2 optically. Temperatures between 70–300 K were measured in this experiment, dependent on cell parameters, e.g. evaporation rate, argon flow rate, length of the drift tube, etc. The high volume collisional rate of 1021 cm−3s−1 at the given pressures allows us to assume that the cluster temperature does not differ considerably from that of dimer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01425636
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  • 5
    Electronic Resource
    Electronic Resource
    Stability of multiply charged silver clusters (1987)
    Springer
    The European physical journal 4 (1987), S. 379-381 
    Details
    ISSN: 1434-6079
    Keywords: 36.40 ; 35.20X ; 79.20K
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Using the gasaggregation technique it is possible to generate metal clusters in narrow size distributions and to vary their mean size by adjusting the cell parameters. The high intensity of this source allows to detect besides singly charged clusters also multiply charged ones. Ag n 2+ and Ag n 3+ are observed forn≧9 andn≧31, respectively; i.e. at values well below the critical sizes reported for spheres.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01384891
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