Results 41 to 50 of about 1,190,251 (340)

On copulas with a trapezoid support

open access: yesDependence Modeling, 2023
A family of bivariate copulas given by: for v ...
Jaworski Piotr
doaj   +1 more source

Parton distributions in the virtual photon target up to NNLO in QCD [PDF]

open access: yes, 2009
Parton distributions in the virtual photon target are investigated in perturbative QCD up to the next-to-next-to-leading order (NNLO). In the case $\Lambda^2 \ll P^2 \ll Q^2$, where $-Q^2$ ($-P^2$) is the mass squared of the probe (target) photon, parton
A. Vogt   +53 more
core   +1 more source

On the dependence between UV luminosity and Lyman-alpha equivalent width in high redshift galaxies [PDF]

open access: yes, 2009
We show that with the simple assumption of no correlation between the Ly-alpha equivalent width and the UV luminosity of a galaxy, the observed distribution of high redshift galaxies in an equivalent width - absolute UV magnitude plane can be reproduced.
A. E. Shapley   +44 more
core   +1 more source

Energy-Dependent Fission-Product Yields in the Region of Second-Chance Fission [PDF]

open access: yesEPJ Web of Conferences
The energy dependence of high-yield fission products has been measured using quasi-monoenergetic neutron beams at energies between 5.5 and 11.0 MeV. The absolute number of fissions during the irradiation period was determined via dual-fission ionization ...
Tonchev Anton P.   +11 more
doaj   +1 more source

Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station [PDF]

open access: yesEPJ Web of Conferences, 2019
Precision measurements by AMS of the fluxes of cosmic ray positrons, electrons, antiprotons, protons as well as their rations reveal several unexpected and intriguing features.
Nozzoli Francesco
doaj   +1 more source

Linear Temperature Variation of the Penetration Depth in YBCO Thin Films

open access: yes, 1995
We have measured the penetration depth $\lambda(T)$ on $\rm YBa_{2}Cu_{3}O_{7}$ thin films from transmission at 120, 330 and 510~GHz, between 5 and 50~K. Our data yield simultaneously the absolute value and the temperature dependence of $\lambda(T)$.
Beasley M. R.   +9 more
core   +1 more source

Mass Varying Neutrinos in the Sun [PDF]

open access: yes, 2005
In this work we study the phenomenological consequences of the dependence of mass varying neutrinos on the neutrino density in the Sun, which we precisely compute in each point along the neutrino trajectory. We find that a generic characteristic of these
Ahmad   +31 more
core   +5 more sources

Specific heat of a PIN-PMN-PT single-crystal up to 500K [PDF]

open access: yesJournal of Advanced Dielectrics, 2017
The temperature dependence of the specific heat of the single crystal Pb(In0.5Nb0.5)O3-Pb(Mg1∕3Nb2∕3)O3-PbTiO3 (PIN-PMN-PT) was obtained at 80–500K by means of ac-calorimetry, and comparison with the calorimetric data for PMN was made, allowing one to ...
S. Grabovsky   +5 more
doaj   +1 more source

Context-dependent utility overrides absolute memory as a determinant of choice [PDF]

open access: yesProceedings of the National Academy of Sciences, 2009
A core problem of decision theories is that although decisionmakers’ preferences depend on learning, their choices could be driven either by learned representations of the physical properties of each alternative (for instance reward sizes) or of the benefit (utility and fitness) experienced from them.
Pompilio, L., Kacelnik, A.
openaire   +6 more sources

Absolute Seebeck coefficient of thin platinum films

open access: yes, 2019
The influence of size effects on the thermoelectric properties of thin platinum films is investigated and compared to the bulk. Structural properties, like the film thickness and the grain size, are varied.
Fischer, S. F.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy