Results 161 to 170 of about 4,793,150 (339)

Corrigendum: Functional and structural architectures of allocentric and egocentric spatial coding in aging: A combined DTI and fMRI study

Frontiers in Neurology, 2022
Abiot Y. Derbie, Abiot Y. Derbie, Bolton K. H. Chau, Chetwyn C. H. Chan   +3 more
doaj   +1 more source

Optimization Method of Fog Computing High Offloading Service Based on Frame of Reference

Mathematics
The cost of offloading tasks is a crucial parameter that influences the task selection of fog nodes. Low-cost tasks can be completed quickly, while high-cost tasks are rarely chosen.
Deng Li , Chengqin Yu, Ying Tan, Jiaqi Liu   +3 more
doaj   +1 more source

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab, Michael Lamey, Andrew Jirasek, Michael Kudla, Nathan Becker, Benjamin Mou, Derek Hyde   +6 more
wiley   +1 more source

Formulation of the Lorentz transformation equations in the three dimensions of space

St. Petersburg Polytechnical University Journal: Physics and Mathematics
The Lorentz transformation of space and time between two inertial frames of reference is one of the pillars of the special theory of relativity. Until now, the Lorentz transformation equations have been considered on the base of one-dimensional motion ...
Khadka Chandra
doaj   +1 more source

Linking Hipparcos To Extragalactic Reference Frame (Task Of Input Catalogue Subgroup 2130) [PDF]

, 1988
A. N. Argue
openalex   +1 more source

The Hole Argument for Reference Frames [PDF]

arXiv
We exploit the results of Bamonti and Gomes (2024) concerning the dynamical (un)coupling of reference frames to gravity to analyse the role of reference frames in the Hole Argument. We introduce a new possible threat to determinism, which we call Arbitrariness Problem (ARB), resulting from the inherent freedom in selecting a reference frame.
arxiv  

Evaluation of the system accuracy of frameless stereotactic radiosurgery using a combination of cone beam CT, six degrees of freedom couch, and surface image‐guided systems

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate the accuracy of the frameless linear accelerator‐based stereotactic radiosurgery (FSRS) system incorporating cone‐beam CT (CBCT), six degrees of freedom (6‐DoF) couch, room laser, and surface image‐guided (SG) systems.
Hao‐Wen Cheng, Jonathan Li, Sheng‐Hsuan Sun, Guanghua Yan, Chihray Liu   +4 more
wiley   +1 more source

Towards The Definition Of A Unified Celestial Optical/Radio Reference Frame [PDF]

, 1988
J. A. Hughes, K. J. Johnston, C. de Vegt
openalex   +1 more source

Log file‐based quality assurance method for respiratory gating system

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background As medical linear accelerator technology advances, enabling higher dose rate deliveries, hypofractionation regimens has increased. This necessitates respiratory gating systems that synchronize radiation delivery with tumor position, requiring simple rigorous quality assurance (QA) to ensure treatment accuracy and patient safety ...
Wonjoong Cheon, Young Kyu Lee, Yunji Seol, Chan‐beom Park, Hong Qi Tan, Kyu Hye Choi, Young‐nam Kang, Byung Ock Choi   +7 more
wiley   +1 more source

The Extragalactic Radio/Optical Reference Frame [PDF]

, 1991
K. J. Johnston, J. L. Russell, Christian de Vegt, N. Zacharias, Robert B. Hindsley, J. A. Hughes, D. L. Jauncey, J. E. Reynolds, Graeme Nicholson, Chao Ma   +9 more
openalex   +1 more source