Results 101 to 110 of about 4,762,893 (253)
Geometry of lines and degeneracy loci of morphisms of vector bundles [PDF]
arXiv, 2015 Corrado Segre played a leading role in the foundation of line geometry. We survey some recent results on degeneracy loci of morphisms of vector bundles where he still is of profound inspiration.
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki +9 more
wiley +1 more source
Optical properties of quasars – II. Emission-line geometry and radio properties
, 1991 The spectrophotometric data presented by the authors (1991, Mont. Not. Roy. ast. Soc., 250) are used to investigate the optical properties of radio-loud quasars. The evidence for anisotropic emission from quasars are briefly reviewed. From these data, it
N. Jackson, I. Browne
semanticscholar +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Studies on deep learning dose prediction increasingly focus on 3D models with multiple input channels and data augmentation, which increases the training time and thus also the environmental burden and hampers the ease of re‐training. Here we compare 2D and 3D U‐Net models with clinical accepted plans to evaluate the appropriateness of
Rosalie Klarenberg +2 more
wiley +1 more source
TEACHING BASIC ELEMENTS IN DESCRIPTIVE GEOMETRY – LINE INTERSECTING A PLANE
Journal of Industrial Design and Engineering GraphicsThe paper presents applications developed for teaching descriptive geometry. The aim of the applications presented is the understanding of the basic elements of the descriptive geometry – the relative positions of a straight line and a plane and they ...
Ramona CLINCIU, Mihaela Rodica CLINCIU
doaj +2 more sources
Energy Conversion and Management: X, 2023 We present a speed line calculation model using physics-based surge point identification. When using surrogate model-based design of experiment (DOE) techniques, the large number of computations demands an automated, unsupervised process to calculate the
Yannick Lattner +2 more
doaj
Calabi-Yau complete intersections with infinitely many lines [PDF]
arXiv, 2004 We give two new examples of families of Calabi-Yau complete intersection threefolds whose generic element contains infinitely many lines. We get some results about the normal bundles of these lines and the Hilbert scheme of lines on the threefolds.
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract This study compared three Brainlab thermoplastic masks—Cranial 4pi basic, stereotactic (Close Mask V2), and open‐face—to see how well they limited head movement during Stereotactic Radiosurgery (SRS). Using a head phantom, we tested rotational movements (pitch, yaw, and roll) and measured displacements with the ExacTrac system.
Iris Pasion Apale +2 more
wiley +1 more source
Determinant Identities and the Geometry of Lines and Circles
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014 The focus of this note is the nontrivial determinant identities which typically underlie the complex analytic proofs of all the results in the plane geometry of lines and circles.
Anghel Nicolae
doaj +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study evaluates a novel cone‐beam computed tomography (CBCT) imaging solution integrated onto a conventional C‐arm linear accelerator (linac) with increased gantry speed. The purpose is to assess the impact of improved imaging hardware and reconstruction algorithms on image quality.
Theodore Arsenault +9 more
wiley +1 more source