Results 41 to 50 of about 91,859 (302)

Non-linear effects in electron cyclotron current drive applied for the stabilization of neoclassical tearing modes [PDF]

, 2014
Due to the smallness of the volumes associated with the flux surfaces around the O-point of a magnetic island, the electron cyclotron power density applied inside the island for the stabilization of neoclassical tearing modes (NTMs) can exceed the ...
Ayten, B., Team, ASDEX Upgrade, Westerhof, E.   +2 more
core   +2 more sources

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Reflection Efficiency and Spectra Resolutions Ray-Tracing Simulations for the VOXES HAPG Crystal Based Von Hamos Spectrometer

Condensed Matter, 2021
The VOXES collaboration at INFN National Laboratories of Frascati developed a prototype of a high resolution Von Hamos X-ray spectrometer using HAPG (Highly Annealed Pyrolytic Graphite) mosaic crystals.
Veronica De Leo, Alessandro Scordo, Catalina Curceanu, Marco Miliucci, Florin Sirghi   +4 more
doaj   +1 more source

Ray-tracing through the Millennium Simulation: Born corrections and lens-lens coupling in cosmic shear and galaxy-galaxy lensing

, 2009
(abridged) We study the accuracy of various approximations to cosmic shear and weak galaxy-galaxy lensing and investigate effects of Born corrections and lens-lens coupling. We use ray-tracing through the Millennium Simulation to calculate various cosmic-
Amendola, Aubert, Bacon, Bartelmann, Bartelmann, Benjamin, Blandford, Bower, Carbone, Cooley, Cooray, Cooray, Couchman, Crittenden, Croton, Das, De Lucia, Eisenstein, Faure, Fosalba, Frigo, Fu, Gavazzi, Hamana, Heymans, Hilbert, Hilbert, Hilbert, Hirata, Hoekstra, J. Hartlap, Jain, Jain, Mandelbaum, Massey, Massey, Massey, Meneghetti, Munshi, Neto, P. Schneider, Pace, Peacock, Peirani, Rozo, S. D. M. White, S. Hilbert, Schimd, Schneider, Schneider, Seitz, Seitz, Seljak, Semboloni, Shapiro, Simon, Smith, Spergel, Springel, Springel, Taylor, Tinker, Vale, Van Waerbeke, Wambsganss, Wambsganss, Wambsganss, White, White, White, Ziour   +70 more
core   +1 more source

Geant4 simulations of soft proton scattering in X-ray optics. A tentative validation using laboratory measurements [PDF]

, 2017
Low energy protons (< 300 keV) can enter the field of view of X-ray space telescopes, scatter at small incident angles, and deposit energy on the detector, causing intense background flares at the focal plane or in the most extreme cases, damaging the X ...
Alfonso Mantero, Andrea Bulgarelli, Claudio Macculi, Fan Lei, null null, Paolo Dondero, Simone Lotti, Teresa Mineo, Valentina Fioretti, Vladimir Ivanchenko   +9 more
core   +2 more sources

Patatin‐domain‐containing (phospho)lipases under control: Mammalian co‐regulators and pathogenic activation mechanisms

FEBS Open Bio, EarlyView.
Patatin domain‐containing (phospho)lipases are lipid‐hydrolyzing enzymes central to metabolism, membrane remodeling, and signaling. Their activity relies on precise co‐activation mechanisms involving protein–protein interactions and conformational rearrangements.
Noopur Dubey, Lina Riegler‐Berket, Monika Oberer   +2 more
wiley   +1 more source

Through the Looking Glass: Faraday Conversion in Turbulent Blazar Jets

Galaxies, 2016
Faint levels of circular polarization (Stokes V) have been detected in several relativistic jets. While typically less than a few percent, circular polarization can give us critical insight into the underlying nature of the jet plasma.
Nicholas Roy MacDonald
doaj   +1 more source

Virtual LiDAR Simulation as a High Performance Computing Challenge: Toward HPC HELIOS++

IEEE Access, 2022
The software HELIOS++ simulates the laser scanning of a given virtual scene that can be composed of different spatial primitives and 3D meshes with distinct granularity.
Alberto M. Esmoris, Miguel Yermo, Hannah Weiser, Lukas Winiwarter, Bernhard Hofle, Francisco F. Rivera   +5 more
doaj   +1 more source

X-ray tracing using Geant4

, 2008
We describe an extension to the Geant4 software package that allows it to be used as a general purpose X-ray tracing package. We demonstrate its use by building a model of the X-ray optics of the XMM-Newton, calculating its effective area, and comparing ...
Agostinelli, Born, E.J. Buis, G. Vacanti, Giacconi, Henke, Saha, Vanspeybroeck, Wolter   +8 more
core   +1 more source

Microphotonic parabolic light directors fabricated by two-photon lithography [PDF]

, 2011
We have fabricated microphotonic parabolic light directors using two-photon lithography, thin-film processing, and aperture formation by focused ion beam lithography. Optical transmission measurements through upright parabolic directors 22 μm high and 10 
Atwater, H. A., Atwater, J. H., Garcia de Abajo, J., Kosten, E., Parsons, J., Polman, A., Spinelli, P., Van de Groep, J., Van Lare, C.   +8 more
core   +1 more source