Results 141 to 150 of about 2,096,695 (356)

Null strings and null solutions of Maxwell's equations

open access: yesJapanese journal of mathematics. New series, 1983
On etablit une relation entre des cordes nulles et des solutions nulles des equations de ...
openaire   +4 more sources

On generalized null polarities

open access: yesDiscrete Mathematics, 2010
AbstractAssuming that a linear complex of planes without singular lines exists, the properties of the related generalized polarity are investigated.
BONVICINI, Simona, Zanella, Corrado
openaire   +4 more sources

Multiplicity and mean transverse momentum fluctuations in Au + Au collisions at RHIC

open access: yes, 2001
Strong modification of event-by-event fluctuations in global observables was proposed by several authors as an indicator of the phase transition in system evolution.
null null, Sergei A. Voloshin
core   +1 more source

Position‐dependent offset corrections for ring applicator reconstruction in cervical cancer brachytherapy

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Due to the tight curvature in their design, ring applicators are usually associated with large positioning errors. The standard practice to correct for these deviations based on global offsets may not be sufficient to comply with the recommended tolerance.
Leon G. Aldrovandi   +3 more
wiley   +1 more source

Comprehensive clinical evaluation of novel 4DCT‐based lung function imaging methods

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Methods have been developed that apply image processing to 4DCTs to generate 4DCT‐ventilation/perfusion lung imaging. Traditional methods for 4DCT‐ventilation rely on Hounsfield‐Unit (HU) density‐change methods and suffer from poor numerical robustness while not providing 4DCT‐perfusion data.
Ehsan Golkar   +6 more
wiley   +1 more source

Measuring CMB polarisation with the Planck HFI

open access: yes, 2001
We describe the Planck HFI design and expected performances for measuring CMB polarisation.Comment: Proceedings of the Pol2001 "Astrophysical Polarised Backgrounds" conference, Bologna, 9-12 october ...
J. Delabrouille, J. Kaplan, null null
core   +3 more sources

An extension to the OVH concept for knowledge‐based dose volume histogram prediction in lung tumor volumetric‐modulated arc therapy

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Volumetric‐modulated arc therapy (VMAT) treatment planning allows a compromise between a sufficient coverage of the planning target volume (PTV) and a simultaneous sparing of organs‐at‐risk (OARs). Particularly in the case of lung tumors, deciding whether it is possible or worth spending more time on further improvements of a treatment
Johann Brand   +4 more
wiley   +1 more source

GLAST and Dark Matter Substructure in the Milky Way

open access: yes, 2007
We discuss the possibility of GLAST detecting gamma-rays from the annihilation of neutralino dark matter in the Galactic halo. We have used "Via Lactea", currently the highest resolution simulation of Galactic cold dark matter substructure, to quantify ...
Jürg Diemand   +3 more
core   +1 more source

Verified Null-Move Pruning [PDF]

open access: yesICGA Journal, International Computer Games Association, Vol. 25, No. 3, pp. 153--161, September 2002, 2008
In this article we review standard null-move pruning and introduce our extended version of it, which we call verified null-move pruning. In verified null-move pruning, whenever the shallow null-move search indicates a fail-high, instead of cutting off the search from the current node, the search is continued with reduced depth.
arxiv  

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