Results 21 to 30 of about 2,315 (173)

Screened Coulomb interactions in metallic alloys: II Screening beyond the single-site and atomic sphere approximations [PDF]

open access: yes, 2001
A quantitative description of the configurational part of the total energy of metallic alloys with substantial atomic size difference cannot be achieved in the atomic sphere approximation: It needs to be corrected at least for the multipole moment ...
A. Bieber   +52 more
core   +3 more sources

First-principles scattering matrices for spin-transport [PDF]

open access: yes, 2005
Details are presented of an efficient formalism for calculating transmission and reflection matrices from first principles in layered materials.
C. Mény   +17 more
core   +5 more sources

Valence double parton distributions of the nucleon in a simple model [PDF]

open access: yes, 2013
Valence double parton distribution functions of the nucleon are evaluated in the framework of a simple model, where the conservation of the longitudinal momentum is taken into account.
Arriola, Enrique Ruiz   +1 more
core   +2 more sources

Parker Solar Probe In-Situ Data at the SPDF Archives

open access: yes, 2020
The Space Physics Data Facility (SPDF https://spdf.gsfc.nasa.gov) and Solar Data Analysis Center (SDAC https://umbra.nascom.nasa.gov/), as the NASA Heliophysics active final archives, will be prese...
Robert Candey   +17 more
openaire   +1 more source

Additions to Space Physics Data Facility and pysatNASA: Increasing Mars Global Surveyor and Mars Atmosphere and Volatile EvolutioN Dataset Utility

open access: yesData
The Space Physics Data Facility (SPDF) is a digital archive of space physics data and is useful for the storage, analysis, and dissemination of data. We discuss the process used to create an amended dataset and store it on the SPDF.
Teresa M. Esman   +3 more
doaj   +1 more source

Bayesian Analysis of the Black-Scholes Option Price [PDF]

open access: yes, 2004
This paper investigates the statistical properties of the Black-Scholes option price under a Bayesian approach. We incorporate randomness, both in the price process and in volatility, to derive the prior and posterior densities of a European call option.
Darsinos, Theofanis   +1 more
core   +1 more source

Inhomogeneous broadening in the time domain: Gauss-Lorentz, Gauss-Drude and Gauss-Debye material models. [PDF]

open access: yesNanophotonics
Abstract Forty‐five years after the initial attempts – first by Efimov–Khitrov in 1979, then by Brendel–Bormann in 1992 – we present a comprehensive, causal, and physically consistent framework for modeling the dielectric function with inhomogeneous (non‐Lorentzian) broadening, where scattering becomes frequency‐ or time‐dependent.
Prokopeva LJ, Kildishev AV.
europepmc   +2 more sources

Origin of Low-Lying Enhanced E1 Strength in Rare-Earth Nuclei

open access: yes, 2015
The experimental $E1$ strength distribution below 4 MeV in rare-earth nuclei suggests a local breaking of isospin symmetry. In addition to the octupole states, additional $1^-$ states with enhanced E1 strength have been observed in rare-earth nuclei by ...
Iachello, F.   +3 more
core   +1 more source

Update on Space Physics Data Facility (SPDF) Data Archives and Services

open access: yes, 2020
The Space Physics Data Facility (SPDF https://spdf.gsfc.nasa.gov), as the non-solar NASA Heliophysics active final archive, works with current operating missions and the heliophysics community to i...
Robert Candey   +17 more
openaire   +1 more source

Octupole correlations in positive-parity states of rare-earth and actinide nuclei

open access: yesEPJ Web of Conferences, 2015
In this contribution, further evidence of the importance of multiphonon-octupole excitations to describe experimental data in the rare earths and actinides will be presented.
Spieker M.   +7 more
doaj   +1 more source

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