Results 31 to 40 of about 3,999,931 (403)
Delayed deconfinement and the Hawking-Page transition
Journal of High Energy Physics, 2022 We revisit the confinement/deconfinement transition in N $$ \mathcal{N} $$ = 4 super Yang-Mills (SYM) theory and its relation to the Hawking-Page transition in gravity.
Christian Copetti +3 more
doaj +1 more source
Geometry over composition algebras : projective geometry [PDF]
, 2005 The purpose of this article is to introduce projective geometry over composition algebras : the equivalent of projective spaces and Grassmannians over them are defined.
Chaput, Pierre-Emmanuel
core +3 more sources
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose Treatment planning for head‐and‐neck (H&N) cancer, in particular oropharynx, nasopharynx, and paranasal sinus cases, at our center requires noncoplanar proton beams due to the complexity of the anatomy and target location. Targeting accuracy for all beams is carefully evaluated by using image guidance before delivering proton beam ...
Nrusingh C. Biswal +5 more
wiley +1 more source
Treatment planning with a 2.5 MV photon beam for radiation therapy
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi +5 more
wiley +1 more source
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose To evaluate the impact of various noise reduction algorithms and template matching parameters on the accuracy of markerless tumor tracking (MTT) using dual‐energy (DE) imaging. Methods A Varian TrueBeam linear accelerator was used to acquire a series of alternating 60 and 120 kVp images (over a 180° arc) using fast kV switching, on ...
Mandeep Kaur +9 more
wiley +1 more source
The Geometry of Algorithms with Orthogonality Constraints [PDF]
SIAM Journal on Matrix Analysis and Applications, 1998 In this paper we develop new Newton and conjugate gradient algorithms on the Grassmann and Stiefel manifolds. These manifolds represent the constraints that arise in such areas as the symmetric eigenvalue problem, nonlinear eigenvalue problems ...
A. Edelman, T. Arias, S.T. Smith
semanticscholar +1 more source
Digital radiography image quality evaluation using various phantoms and software
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas +4 more
wiley +1 more source
Spinning geometry = Twisted geometry [PDF]
Classical and Quantum Gravity, 2014 22 pages, 5 figures, published ...
Jonathan Ziprick +2 more
openaire +3 more sources
On the relation between mixed Morrey spaces and mixed Morrey double-sequence spaces [PDF]
ITM Web of ConferencesIn this article, we prove that mixed Morrey double-sequence spaces can be realized as a subspace of mixed Morrey spaces. Our proof extends a similar result for discrete Morrey spaces, obtained by Kikianty and Schwanke in 2019.
Gunawan Hendra +4 more
doaj +1 more source
Electrobaromembrane apparatuses: Classification and particular application for wastewater treatment [PDF]
Acta Periodica Technologica, 2019 The aims of this work are developing the electrobaromembrane apparatus classification and study of the particular case of electrobaromembrane process application for wastewater treatment in engineering industries.
Lazarev Sergey I. +2 more
doaj +1 more source