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Long-term variation in the cosmic-ray diurnal anisotropy
Springer Science and Business Media LLC - Tập 13 - Trang 361-378 - 2007
The long-term modulation of the diurnal variation of the cosmic-ray intensity, observed in quiet times during the ascending phase of solar cycle number 20, is fully explained by the change in the interplanetary sector pattern. The sector structure seems to generate an upper rigidity cut-off for the diurnal variation which increases from ∼50 GV during 1965 to ∼150 GV during 1968. Moreover, the ampl...... hiện toàn bộ
Scattering of alpha-particles by55Mn
Springer Science and Business Media LLC - Tập 61 - Trang 177-184 - 2015
The elastic and inelastic scattering of 50 MeV alpha-particles by55Mn has been measured. The angular distributions of the scattered alphas from several excited levels were analyzed by means of the distorted-wave Born approximation. Transition strengths were determined for most of the levels observed. The energy resolution was sufficiently good to permit separation of the first excited state (0.126...... hiện toàn bộ
Measuring fluorescence decay times by phase-shift and modulation techniques using the high harmonic content of pulsed light sources
Springer Science and Business Media LLC - Tập 56 - Trang 110-124 - 2007
In the present work we discuss the possibility to measure fluorescence lifetimes by coupling pulsed excitation with phase-shift and amplitude-modulation detection techniques. We show that, because of the high harmonic content of narrow light pulses, the sample may be considered as simultaneously excited with a set of modulation frequencies up to the GHz region with noticeable power. By measuring t...... hiện toàn bộ
Quantum-mechanical approach to the point-charge capacitor problem
Springer Science and Business Media LLC - Tập 33 - Trang 681-698 - 2007
A quantum-mechanical description of the electrostatic properties (potential, force, surface charge density, polarization and electric field) induced by a point charge in an infinite-plate capacitor is given in the model based on elementary excitations at solid-vacuum interfaces. A complete solution of the problem in the long-wavelength (continuum) limit is obtained and compared with similar result...... hiện toàn bộ
A solution in the finsler geometry
Springer Science and Business Media LLC - Tập 108 - Trang 343-349 - 2008
The metric tensor for one of the simplest cases is calculated in the Finsler geometry. For the spherically symmetric-coordinate system, it is assumed that effective components of differential variables are for time and radial directions. And a solution corresponding to the Friedmann solution in the Riemann space is discussed.
Differential-equation reduction of principal-value collision integrals in nonrelativistic perturbation theory
Springer Science and Business Media LLC - Tập 34 - Trang 297-304 - 2007
An iterative differential-equation approach to the evaluation of principal-value integrals occurring in perturbation calculations is examined within the framework ofT-matrix collision theory. Such procedure also leads to an interesting representation of nonrelativistic perturbation theory, and can simplify calculation of scattering matrix elements for smooth potentials.
A quantitative analysis of the trouton-noble experiment
Springer Science and Business Media LLC - Tập 72 - Trang 1-12 - 2008
We analyse quantitatively, in the frame of the usual relativistic theories of continuum media and electrodynamics, a simplified version of the Trouton-Noble experiment. It is checked at first, in thev
2/c2 approximation as well as in the exact form, that the negative result of the experiment is a consequence of the application of the angularmomentum theorem to the electromagnetic subsystem. An ana...... hiện toàn bộ
Electron gas model for the lattice dynamics of transition metals
Springer Science and Business Media LLC - Tập 19 - Trang 261-270 - 2008
Calculations of the phonon dispersion relations and specific heats for two transition metals are made using Krebs approach, in which the dynamical matrix is split into a closed-shell part and an ionic part. The ionic contribution to the elements of the dynamical matrix is calculated from a screened Coulomb interaction of the metal ions embedded in the sea of Bloch electrons. Computed vibration fre...... hiện toàn bộ
Atom-diatom scattering in the presence of reactive channels
Springer Science and Business Media LLC - - 1981
Erratum to: Toward an objective interpretation of quantum mechanics
Springer Science and Business Media LLC - Tập 29 - Trang 252-252 - 2008
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