Results 71 to 80 of about 4,762,893 (253)
Advanced Engineering Materials, EarlyView., 2023 A novel method for tracking structural changes in gels using widely accessible microcomputed tomography is presented and validated for various hydro‐, alco‐, and aerogels. The core idea of the method is to track positions of micrometer‐sized tracer particles entrapped in the gel and relate them to the density of the gel network.
Anja Hajnal +3 more
wiley +1 more source
Grassmannians of lines defined in the geometry of a pseudo-polarity [PDF]
arXiv, 2012 The regular point-line geometry with respect to a pseudo-polarity is introduced. It is weaker than the underlying metric-projective geometry. The automorphism group of this geometry is determined. This geometry can be also expressed as the geometry of regular lines and planes.
arxiv
The envelope of lines meeting a fixed line that are tangent to two spheres [PDF]
Discrete and Computational Geometry, 33, Number 4, (2005)
617--644., 2003 We study the set of lines that meet a fixed line and are tangent to two spheres and classify the configurations consisting of a single line and three spheres for which there are infinitely many lines tangent to the three spheres that also meet the given line. All such configurations are degenerate. The path to this result involves the interplay of some
arxiv
Proceedings of the National Academy of Sciences of the United States of America, 1972 Advantage was taken of the reversibility of the first step of ribonuclease-A action to synthesize the dinucleoside phosphorothioate Up(S)C from the crystalline isomer of uridine 2',3'-cyclic phosphorothioate [Up(S)] and cytidine.
D. A. Usher, E. S. Erenrich, F. Eckstein
semanticscholar +1 more source
Exploration of mathematical concepts in Batik Truntum Surakarta
InfinityThis research investigates the mathematical concepts embedded within Batik Truntum motifs, including geometry, analysis, arithmetic, and algebra. Employing a qualitative methodology with an ethnographic approach, the study addresses four critical ...
Adi Nurcahyo +3 more
doaj +1 more source
Aircraft Pose Estimation Based on Geometry Structure Features and Line Correspondences
Sensors, 2019 A robust and accurate aircraft pose estimation method is proposed in this paper. The aircraft pose reflects the flight status of the aircraft and accurate pose measurement is of great importance in many aerospace applications. This work aims to establish
Xichao Teng +4 more
doaj +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Training deep learning dose prediction models for the latest cutting‐edge radiotherapy techniques, such as AI‐based nodal radiotherapy (AINRT) and Daily Adaptive AI‐based nodal radiotherapy (DA‐AINRT), is challenging due to limited data.
Hui‐Ju Wang +5 more
wiley +1 more source
A NOTE ON RELATION BETWEEN POINT-LINE DISPLACEMENT AND EQUIFORM TRANSFORMATION
Journal of New Theory, 2015 − The present paper studies the relation between the point-line displacement and theequiform transformation in Euclidean 3-space R3. A point-line can be transformed into another pointline via an equiform transformation.
Esra B. Koç Öztürk +2 more
doaj
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Results of a prospective, randomized controlled trial at our institute demonstrate an association between the dose to the left hippocampus and neurocognitive decline post‐radiotherapy for patients with glioblastoma. To minimize the dose to the left hippocampus, a left hippocampus sparing model was created using RapidPlan (RP) and multi‐
Shima Y. Tari +9 more
wiley +1 more source
Applied Sciences, 2020 This paper devises an algorithm for finding the minimal set of axial lines that can represent a geometry of building and urban layout in two dimensions.
Sung Kwon Jung, Youngchul Kim
doaj +1 more source