Results 171 to 180 of about 4,466,496 (420)
Spin-Axis Attitude Determination Program for the Geosynchronous Transfer Orbit Spacecraft [PDF]
Three types of spin-axis attitude determination program for the geosynchronous transfer orbit spacecraft are developed. Deterministic closed-form algorithm, batch least-square algorithm and stabilized Kalman filter algorithm are used for implemetation of
Byoung-Sun Lee, Jong Won Eun
doaj
A Design and Operational Philosophy for an Ultra-Precision Tracking Mount System for a Missile Test Range [PDF]
John A. Clemente
openalex +1 more source
Abstract Purpose To investigate the feasibility of adapting a commercial prostate biopsy system for transrectal ultrasound (TRUS)‐guided hybrid gynecological (GYN) high‐dose‐rate (HDR) brachytherapy (BT). Leveraging 3D‐TRUS and MR image fusion, the prototype system aims to improve real‐time needle placement accuracy.
Lindsey H. Bloom+8 more
wiley +1 more source
Log file‐based quality assurance method for respiratory gating system
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+7 more
wiley +1 more source
Machine Learning for Track Finding at PANDA [PDF]
We apply deep learning methods as a track finding algorithm to the PANDA Forward Tracking Stations (FTS). The problem is divided into three steps: The first step relies on an Artificial Neural Network (ANN) that is trained as a binary classifier to build track segments in three different parts of the FTS, namely FT1,FT2, FT3,FT4, and FT5,FT6.
arxiv
Accounting for TLD response to CBCT protocols in external beam radiotherapy dose monitoring
Abstract Purpose LiF thermoluminescent dosimeters (TLDs) are commonly used in radiation therapy to verify the delivered dose. Examples include dose verification for complicated treatment setups or cardiovascular implantable electronic devices (CIEDs). TLDs may be present for both the pre‐treatment imaging kilovoltage (kV) beam and the megavoltage (MV ...
Andrew J. White+5 more
wiley +1 more source
IntroductionSevere fever with thrombocytopenia syndrome (SFTS) is characterized by a high mortality rate and is associated with immune dysregulation. Cytokine storms may play an important role in adverse disease regression, this study aimed to assess the
Zishuai Liu+10 more
doaj +1 more source
THE KINETICS OF RADICAL REACTIONS IN THE TRACKS OF FAST ELECTRONS. A DETAILED STUDY OF THE SAMUEL–MAGEE MODEL FOR THE RADIATION CHEMISTRY OF WATER [PDF]
P. J. Dyne, J. M. Kennedy
openalex +1 more source
Abstract Purpose An evaluation of the accuracy, safety, and efficiency of the Halcyon ring delivery system (RDS) for stereotactic radiosurgery (SRS) treatment to relatively small (1–3 cm) brain lesions. Methods After completing the extensive in‐house quality assurance checks including Winston–Lutz test and independent dose verification via MD Anderson ...
Kate Hazelwood+5 more
wiley +1 more source
Life-threatening systemic fungal infections caused by Candida albicans are significant contributors to clinical mortality, particularly among cancer patients and immunosuppressed individuals.
Mengjuan Cheng+4 more
doaj +1 more source