Results 61 to 70 of about 559,504 (336)

Rapid Fault Diagnosis Method of Elevator System Based on Multiattribute Decision Making

Shock and Vibration, 2021
Fault tree analysis is often used in elevator fault diagnosis because of its simplicity and reliability. However, the traditional fault tree method has the problems of low efficiency due to ignoring location change of bottom events during troubleshooting.
Dapeng Niu, Chenshu Qi, Guanghai Li, Hongru Li, Hali Pang   +4 more
doaj   +1 more source

Toward a human‐centric co‐design methodology for AI detection of differences between planned and delivered dose in radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction Many artificial intelligence (AI) solutions have been proposed to enhance the radiotherapy (RT) workflow, but limited applications have been implemented to date, suggesting an implementation gap. One contributing factor to this gap is a misalignment between AI systems and their users.
Luca M. Heising, Frank Verhaegen, Stefan G. Scheib, Maria J. G. Jacobs, Carol X. J. Ou, Viola Mottarella, Yin‐Ho Chong, Mariangela Zamburlini, Sebastiaan M. J. J. G. Nijsten, Ans Swinnen, Michel Öllers, Cecile J. A. Wolfs   +11 more
wiley   +1 more source

Fault Tree Analysis for Robust Design

Designs
The objective of this research is to incorporate system failure into a robust design formation and solution process. The system failure referred to here will be built using fault tree analysis (FTA), which will take all lower-level failure events into ...
Jonathan DeGroff, Gene Jean-Win Hou
doaj   +1 more source

Analytic Methods to Calculate Fault Trees with Loops - Restrictions of Application and Solution Uniqueness [PDF]

arXiv, 2016
One of the important tasks of the Reliability Estimation is Analysis of the Fault Tree. A problem of Fault Trees analysis is considered one of the most complex ones, since structure of such trees is characterized by a considerable number of interconnections. Usually analytical methods are used and most applicable method is Minimal Cut Sets building and
arxiv  

Fault tree reliability analysis via squarefree polynomials [PDF]

arXiv, 2023
Fault tree (FT) analysis is a prominent risk assessment method in industrial systems. Unreliability is one of the key safety metrics in quantitative FT analysis. Existing algorithms for unreliability analysis are based on binary decision diagrams, for which it is hard to give time complexity guarantees beyond a worst-case exponential bound.
arxiv  

Using deep learning generated CBCT contours for online dose assessment of prostate SABR treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Prostate Stereotactic Ablative Body Radiotherapy (SABR) is an ultra‐hypofractionated treatment where small setup errors can lead to higher doses to organs at risk (OARs). Although bowel and bladder preparation protocols reduce inter‐fraction variability, inconsistent patient adherence still results in OAR variability.
Conor Sinclair Smith, Isabelle Gagne, Karl Otto, Carter Kolbeck, Joshua Giambattista, Abraham Alexander, Sonja Murchison, Andrew Pritchard, Erika Chin   +8 more
wiley   +1 more source

Improving dose delivery in non‐coplanar cranial SRS: Stereoscopic x‐ray‐guided mitigation of table walkout errors

Journal of Applied Clinical Medical Physics, EarlyView.
Purpose Linear accelerator (LINAC)‐based single‐isocenter multi‐target (SIMT) treatment has streamlined the cranial stereotactic radiosurgery (SRS) workflow. Though efficient, SIMT delivery adds additional challenges that should be considered, including increased sensitivity to rotational errors for off‐isocenter targets.
Yohan A. Walter, Philip F. Durham, Anne N. Hubbard, William E. Burrell, Hsinshun T. Wu   +4 more
wiley   +1 more source

Research on safety analysis for airborne system based on extended functional model

Advances in Mechanical Engineering, 2015
With the widespread use of embedded system in safety critical areas, system safety assurance has become one of the research hotspots of engineering technologies.
Quan Jiang, Chunling Zhu, Dejian Cao, Chuanlin Huang, Jian Xie   +4 more
doaj   +1 more source

Importance Analysis of Fault Tree in Probabilistic Safety Assessment and Reliability Estimation

Hangkong gongcheng jinzhan, 2018
Both the critical importance index of fault tree analysis(FTA) in probability safety assessment and global sensitivity index in reliability estimation can be employed to determine the important input variables.
Song Shufang, Ma Yiyan, Wang Lu
doaj   +1 more source

AFETM: Adaptive function execution trace monitoring for fault diagnosis [PDF]

arXiv, 2022
The high tracking overhead, the amount of up-front effort required to selecting the trace points, and the lack of effective data analysis model are the significant barriers to the adoption of intra-component tracking for fault diagnosis today. This paper introduces a novel method for fault diagnosis by combining adaptive function level dynamic tracking,
arxiv