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Search Results: 1 - 10 of 468438 matches for " J. van de Wiele "
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De inquisitierechtbank van Pieter Titelmans in de zestiende eeuw in Vlaanderen
J. van de Wiele
BMGN : Low Countries Historical Review , 1982,
M. Cloet, Het decanaat Leuven in 1732-1734. Visitatieverslag van deken Rombout van Kiel
J. van de Wiele
BMGN : Low Countries Historical Review , 1992,
R. Weemaes, Visitatieverslagen van Karel Maes, bisschop van Gent. Diarium mei-juni 1611
J. van de Wiele
BMGN : Low Countries Historical Review , 1989,
M. Therry, De dekenij Roeselare (1609-1649). Bijdrage tot de studie van de katholieke hervorming in het bisdom Brugge
J. van de Wiele
BMGN : Low Countries Historical Review , 1986,
QED radiative corrections to virtual Compton scattering
M. Vanderhaeghen,J. M. Friedrich,D. Lhuillier,D. Marchand,L. Van Hoorebeke,J. Van de Wiele
Physics , 2000, DOI: 10.1103/PhysRevC.62.025501
Abstract: The QED radiative corrections to virtual Compton scattering (reaction $e p \to e p \gamma$) are calculated to first order in $\alpha_{em} \equiv e^2 / 4 \pi$. A detailed study is presented for the one-loop virtual corrections and for the first order soft-photon emission contributions. Furthermore, a full numerical calculation is given for the radiative tail, corresponding with photon emission processes, where the photon energy is not very small compared with the lepton momenta. We compare our results with existing works on elastic electron-proton scattering, and show for the $e p \to e p \gamma$ reaction how the observables are modified due to these first order QED radiative corrections. We show results for both unpolarized and polarized observables of the virtual Compton scattering in the low energy region (where one is sensitive to the generalized polarizabilities of the nucleon), as well as for the deeply virtual Compton scattering.
Probing the pairing interaction through two-neutron transfer reactions
E. Pllumbi,M. Grasso,D. Beaumel,E. Khan,J. Margueron,J. van de Wiele
Physics , 2010, DOI: 10.1103/PhysRevC.83.034613
Abstract: Cross sections for ($p,t$) two-neutron transfer reactions are calculated in the one-step zero-range distorted-wave Born approximation for the tin isotopes $^{124}$Sn and $^{136}$Sn and for incident proton energies from 15 to 35 MeV. Microscopic quasiparticle random-phase approximation form factors are provided for the reaction calculation and phenomenological optical potentials are used in both the entrance and the exit channels. Three different surface/volume mixings of a zero-range density-dependent pairing interaction are employed in the microscopic calculations and the sensitivity of the cross sections to the different mixings is analyzed. Since absolute cross sections cannot be obtained within our model, we compare the positions of the diffraction minima and the shapes of the angular distributions. No differences are found in the position of the diffraction minima for the reaction $^{124}$Sn($p,t$)$^{122}$Sn. On the other side, the angular distributions obtained for the reaction $^{136}$Sn($p,t$)$^{134}$Sn with surface and mixed interactions differ at large angles for some values of the incident proton energy. For this reaction, we compare the ratios of the cross sections associated to the ground state and the first excited state transitions. Differences among the three different theoretical predictions are found and they are more important at the incident proton energy of 15 MeV. As a conclusion, we indicate ($p,t$) two-neutron transfer reactions with very neutron-rich Sn isotopes and at proton energies around 15 MeV as good experimental cases where the surface/volume mixing of the pairing interaction may be probed.
Influence of material defects on current-driven vortex domain wall mobility
J. Leliaert,B. Van de Wiele,A. Vansteenkiste,L. Laurson,G. Durin,L. Dupré,B. Van Waeyenberge
Physics , 2013, DOI: 10.1103/PhysRevB.89.064419
Abstract: Many future concepts for spintronic devices are based on the current-driven motion of magnetic domain walls through nanowires. Consequently a thorough understanding of the domain wall mobility is required. However, the magnitude of the nonadiabatic component of the spin-transfer torque driving the domain wall is still debated today as various experimental methods give rise to a large range of values for the degree of nonadiabaticity. Strikingly, experiments based on vortex domain wall motion in magnetic nanowires consistently result in lower values compared to other methods. Based on the micromagnetic simulations presented in this contribution we can attribute this discrepancy to the influence of distributed disorder which vastly affects the vortex domain wall mobility, but is most often not taken into account in the models adopted to extract the degree of nonadiabaticity.
Reversible Electric-Field Driven Magnetic Domain Wall Motion
Kévin J. A. Franke,Ben Van de Wiele,Yasuhiro Shirahata,Sampo J. H?m?l?inen,Tomoyasu Taniyama,Sebastiaan van Dijken
Physics , 2014,
Abstract: Control of magnetic domain wall motion by electric fields has recently attracted scientific attention because of its potential for magnetic logic and memory devices. Here, we report on a new driving mechanism that allows for magnetic domain wall motion in an applied electric field without the concurrent use of a magnetic field or spin-polarized electric current. The mechanism is based on elastic coupling between magnetic and ferroelectric domain walls in multiferroic heterostructures. Pure electric-field driven magnetic domain wall motion is demonstrated for epitaxial Fe films on BaTiO$_3$ with in-plane and out-of-plane polarized domains. In this system, magnetic domain wall motion is fully reversible and the velocity of the walls varies exponentially as a function of out-of-plane electric field strength.
Clonality and α-a Recombination in the Australian Cryptococcus gattii VGII Population - An Emerging Outbreak in Australia
Fabian Carriconde,Félix Gilgado,Ian Arthur,David Ellis,Richard Malik,Nathalie van de Wiele,Vincent Robert,Bart J. Currie,Wieland Meyer
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0016936
Abstract: Cryptococcus gattii is a basidiomycetous yeast that causes life-threatening disease in humans and animals. Within C. gattii, four molecular types are recognized (VGI to VGIV). The Australian VGII population has been in the spotlight since 2005, when it was suggested as the possible origin for the ongoing outbreak at Vancouver Island (British Columbia, Canada), with same-sex mating being suggested as the driving force behind the emergence of this outbreak, and is nowadays hypothesized as a widespread phenomenon in C. gattii. However, an in-depth characterization of the Australian VGII population is still lacking. The present work aimed to define the genetic variability within the Australian VGII population and determine processes shaping its population structure.
Regge description of two pseudoscalar meson production in antiproton-proton annihilation
Jacques Van de Wiele,Saro Ong
Physics , 2010, DOI: 10.1140/epja/i2010-11044-7
Abstract: A Regge-inspired model is used to discuss the hard exclusive two-body hadronic reactions (pbar p ----> pi+ pi-, pi0 pi0, K+ K-, Kbar0 K0) for the FAIR facility project at GSI with the Panda detector. The comparison between the differential cross sections predictions and the available data is shown to determine the values of the few parameters of the model.
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