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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Inorganic chemistry 34 (1995), S. 1377-1383 
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European biophysics journal 2 (1976), S. 99-104 
    ISSN: 1432-1017
    Keywords: Action potential ; Temperature ; Heart ; Activation Energy ; Duration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Summary Measurements of the total duration,t Aof the action potential for canine papillary muscle in the temperature range 25–45
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 7 (1986), S. 734-738 
    ISSN: 0392-6737
    Keywords: 61.70 ; defects in crystals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Il lavoro deriva una relazione di scala per l’energiaE v di formazione di un posto vacante in una famiglia di sistemi omologhi alla loro temperatureT m di fusione, nell’ambito di una teoria a potenziale di coppia che legaE v aT m alla struttura della fase liquida nell’ipotesi che rilassamenti atomici attorno al posto vacante possano essere trascurati.
    Notes: Summary A scaling relation is derived for the vacancy formation energyE v in a family of homologous systems at their melting temperatureT m, using a pair potential theory which relatesE v atT m to liquid structure under the assumption that atomic relaxation round the vacancy can be neglected.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 6 (1985), S. 521-526 
    ISSN: 0392-6737
    Keywords: Diamagnetism and paramagnetism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto La localizzazione di elettroni per effetto di repulsioni coulombiane sufficientemente forti porta ad un modello di elettroni che oscillano attorno a siti reticolari in potenziali armonici. Si studia il diamagnetismo orbitale di un siffatto oscillatore localizzato di Wigner in campo magnetico d'intensità arbitraria. Il contributo dovuto al momento angolare orbitale e quello di Langevin-Pauli sono calcolati separatamente mediante il teorema di Feynman. Si discute la possibile connessione dei risultati con il problema della curva di fusione del cristallo di Wigner in campo magnetico.
    Notes: Summary Electron crystallization due to sufficiently strong Coulomb repulsions leads to a model of electrons oscillating about lattice sites in harmonic potentials. We have studied the orbital diamagnetism of such a localized Wigner oscillator in an applied magnetic field of arbitrary strength. The two contributions from orbital angular momentum and from Langevin-Pauli behaviour are separately calculated using Feynman's theorem. Possible relevance to the melting curve of the Wigner crystals in a magnetic field is pointed out.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 18 (1996), S. 1061-1067 
    ISSN: 0392-6737
    Keywords: Thermodynamic properties ; equations of state
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Analytic results for electronic kinetic energy are first presented for a hydrogen atom in a spherical cage for two radii near to the corresponding densities employed in the path-integral Monte Carlo study of isochoric molecular dissociation in dense hydrogen by Magroet al. (Magro W. R., Ceperley D. M., Pierleoni C. andBernu B.,Phys. Rev. Lett.,76 (1996) 1240). The relevance of the «cage» results to the behaviour of dense atomic hydrogen is pointed out. Attention is then shifted to the molecular regime, and the variation with density of electronic kinetic energy for a H2 molecule in a rigid spheroidal cage is compared and contrasted with the Monte Carlo findings. The rigid-cage model mimics this, as well as bond length contraction, under compression.
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  • 6
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 40 (1999), S. 2671-2679 
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: For the hydrogenlike atom, with central potential −Z/r, partial differential equations exist for the Slater sum Z(r,β) [β=(kBT)−1] and for its s-wave (l=0) component Z0(r,β). It is shown that Z can be eliminated, to lead to a result in which Z(r,β) is solely characterized by Z0(r,β). A similar situation is exhibited for the three-dimensional isotropic harmonic oscillator, for which closed forms of both Z(r,β,ω) and Z0(r,β,ω) can be obtained explicitly. Finally, a third central field problem is considered in which independent electrons are confined within a sphere of radius R, but are otherwise free. We are able to derive explicitly for this model the s-wave component Z0(r,β,R). The full Slater sum Z(r,β,R) then is also analyzed in some detail. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 111 (1999), S. 1786-1787 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: A simple model is proposed for the moments of the inhomogeneous direct correlation function entering the theory of surface tension and liquid–vapor interfacial profile for a classical fluid. © 1999 American Institute of Physics.
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 82 (1985), S. 1967-1968 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Asymptotic representations of the density matrix and pair function for atoms and molecules are developed for a number of different limits. These are necessary conditions on any feasible density matrix. We end by discussing the corresponding physical configurations.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 83 (1985), S. 1232-1233 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The 1/Z expansion of the total energy E(Z,N) is compared with a recent result giving the total energy of heavy positive atomic ions in the weak ionization limit N/Z near to unity. The leading term in the asymptotic limit of the high order coefficients of the 1/Z expansion for large N is thereby determined precisely. The results are finally compared and contrasted with the treatment by Stillinger of the He-like series with N=2.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 82 (1985), S. 323-324 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The asymptotic form of the single-particle density matrix in an N-electron atom is known to be determined by the overlap of the ground state wave functions of the N and (N−1) electron systems. We discuss the generalization of this result to the two particle density matrix. The connection with recent work by Patil on the asymptotic form of the wave function for two-electron atomic ions, and its generalization, is pointed out.
    Type of Medium: Electronic Resource
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