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  • 2000-2004  (6)
  • 1900-1904
  • 1890-1899
  • 2001  (6)
  • PACS. 07.05.Tp Computer modeling and simulation – 02.60.Cb Numerical simulation; solution of equations – 52.70.Kz Optical (ultraviolet, visible, infrared) measurements  (2)
  • PACS. 64.70.Pf Glass transitions – 05.70.Ln Nonequilibrium and irreversible thermodynamics  (2)
  • Social networks.  (2)
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  • 2000-2004  (6)
  • 1900-1904
  • 1890-1899
Year
  • 2001  (6)
Keywords
  • 1
    Unknown
    Social capital : theory and research (2001)
    New York : Aldine de Gruyter
    Sociology and economics  
    Details
    Keywords: Capital social (Sociologie) ; Réseaux sociaux. ; Social capital (Sociology) ; Social networks. ; Social structure. ; Structure sociale.
    Pages: xii, 333 p.
    ISBN: 0-585-48509-7
    URL: http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=101506
    Library Location Call Number Volume/Issue/Year Availability
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    E-Book (German National Licenses)
  • 2
    Unknown
    Social capital : a theory of social structure and action (2001)
    Cambridge ; New York : Cambridge University Press
    Structural analysis in the social sciences  
    Details
    Keywords: Action sociale. ; Capital social (Sociologie) ; Réseaux sociaux. ; Social action. ; Social capital (Sociology) ; Social networks.
    Pages: xiv, 278 p.
    ISBN: 0-511-01947-5
    URL: http://www.netLibrary.com/urlapi.asp?action=summary&v=1&bookid=74320
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    E-Book (German National Licenses)
  • 3
    Electronic Resource
    Electronic Resource
    Validity of the zero-thermodynamic law in off-equilibrium coupled harmonic oscillators (2001)
    Springer
    The European physical journal 20 (2001), S. 105-122 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 64.70.Pf Glass transitions – 05.70.Ln Nonequilibrium and irreversible thermodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: In order to describe the thermodynamics of the glassy systems it has been recently introduced an extra parameter, the effective temperature which generalizes the fluctuation-dissipation theorem (FDT) to off-equilibrium systems and supposedly describes thermal fluctuations around the aging state. Using this concept we investigate the applicability of a zeroth thermodynamic law for non-equilibrium systems. In particular we study two coupled systems of harmonic oscillators with Monte Carlo dynamics. We analyze in detail two types of dynamics: 1) sequential dynamics where the coupling between the subsystems comes only from the Hamiltonian and 2) parallel dynamics where there is a further coupling between the subsystems arising from the dynamics. We show that the coupling described in the first case is not enough to make asymptotically the effective temperatures of the two interacting subsystems equalize, the reason being the too small thermal conductivity between them in the aging state. This explains why different interacting degrees of freedom in structural glasses may stay at different effective temperatures without never mutually thermalizing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01313919
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  • 4
    Electronic Resource
    Electronic Resource
    Heat transfer and Fourier's law in off-equilibrium systems (2001)
    Springer
    The European physical journal 21 (2001), S. 115-120 
    Details
    ISSN: 1434-6036
    Keywords: PACS. 64.70.Pf Glass transitions – 05.70.Ln Nonequilibrium and irreversible thermodynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We study the most suitable procedure to measure the effective temperature in off-equilibrium systems. We analyze the stationary current established between an off-equilibrium system and a thermometer and the necessary conditions for that current to vanish. We find that the thermometer must have a short characteristic time-scale compared to the typical decorrelation time of the glassy system to correctly measure the effective temperature. This general conclusion is confirmed analyzing an ensemble of harmonic oscillators with Monte Carlo dynamics as an illustrative example of a solvable model of a glass. We also find that the current defined allows to extend Fourier's law to the off-equilibrium regime by consistently defining effective transport coefficients. Our results for the oscillator model explain why thermal conductivities between thermalized and frozen degrees of freedom in structural glasses are extremely small.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01315082
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  • 5
    Electronic Resource
    Electronic Resource
    Design study of 3-D tomography diagnostics for spherical tokamaks (2001)
    Springer
    The European physical journal 14 (2001), S. 97-103 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 07.05.Tp Computer modeling and simulation – 02.60.Cb Numerical simulation; solution of equations – 52.70.Kz Optical (ultraviolet, visible, infrared) measurements
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: A novel three-dimensional (3-D) tomography software has been developed for spherical tokamak (ST) plasmas with thin central coils. It enables us to measure whole 3-D annular profiles of ST plasma emissivity (line spectrum etc.) using limited number of detectors located on a sphere outside of its separatrix. The numbers and positions of detectors have been optimized for STs that contain low-n toroidal modes from n = 1 to 5. Mathematical method allowing for the removal of the thin central coil from the region of reconstruction and to reconstruct STs with single and double axes are also discussed. The shadow effect of center coil region was found to limit the reconstruction accuracy, indicating that the low-aspect ratio torus (ST) is essential to this new 3-D tomography diagnostics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530170240
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  • 6
    Electronic Resource
    Electronic Resource
    Tomographic determination of plasma velocity with the use of ion Doppler spectroscopy (2001)
    Springer
    The European physical journal 17 (2001), S. 337-344 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 07.05.Tp Computer modeling and simulation – 02.60.Cb Numerical simulation; solution of equations – 52.70.Kz Optical (ultraviolet, visible, infrared) measurements
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: An inversion method for ion Doppler shift of spectrum lines was developed for plasma velocity measurements. By reducing the problem to the vectorial Radon transform, the characteristics of plasma ion velocity distribution such as vector potential/vorticity and velocity components were computed in two-dimensional space. Computer simulation of the reconstruction of different vector potential (vector field) models gives evidence that the reconstruction errors are acceptable, and the method can surely be used for real experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100530170008
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    Paper (German National Licenses)
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