Results 11 to 20 of about 559,504 (336)
RISK ANALYSIS TECHNIQUES OF OIL AND GAS PIPELINE
Revista de Investigaciones Universidad del Quindío, 2022 The safety of pipelines that transport energy has become an important and controversial issue with the general public. The main hazard for safe transportation of substances is a pipeline failure taken as a loss of its tightness and release of the ...
Ibrahim A. Altuwair
doaj +1 more source
Automated fault tree learning from continuous-valued sensor data: a case study on domestic heaters [PDF]
International Journal of Prognostics and Health Management 13 (2)
(2022), 2022 Many industrial sectors have been collecting big sensor data. With recent technologies for processing big data, companies can exploit this for automatic failure detection and prevention. We propose the first completely automated method for failure analysis, machine-learning fault trees from raw observational data with continuous variables.
arxiv +1 more source
Fault Analysis System for High Speed EMU Control Network Based on Fault Tree
Kongzhi Yu Xinxi Jishu, 2022 At present, fault analysis of high speed EMU is to classify and list all the fault causes according to the working principle, characteristics, functions and structure of the system.
XU Qing, LI Chuanyu
doaj +1 more source
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Background and purpose For postoperative breast cancer patients, deformable image registration (DIR) is challenged due to the large deformations and non‐correspondence caused by tumor resection and clip insertion. To deal with it, three metrics (fiducial‐, region‐, and intensity‐based) were jointly used in DIR algorithm for improved accuracy ...
Xin Xie +6 more
wiley +1 more source
Analysis of comprehensive sensitivity evaluation of aircraft system based on FTA-AHP
Xibei Gongye Daxue Xuebao, 2021 Aiming at the lack of unified evaluation index for the sensitivity analysis of fault tree of the system, the Analytic Hierarchy Process(AHP) is introduced into Fault Tree Analysis(FTA), and an FTA-AHP method is proposed to generate the comprehensive ...
FENG Yunwen +3 more
doaj +1 more source
Combination of component fault trees and Markov chains to analyze complex, software-controlled systems [PDF]
2018 3rd International Conference on System Reliability and Safety
(ICSRS), 2021 Fault Tree analysis is a widely used failure analysis methodology to assess a system in terms of safety or reliability in many industrial application domains. However, with Fault Tree methodology there is no possibility to express a temporal sequence of events or state-dependent behavior of software-controlled systems.
arxiv +1 more source
Model-Based Reliability and Safety: Reducing the Complexity of Safety Analyses Using Component Fault Trees [PDF]
2018 Annual Reliability and Maintainability Symposium (RAMS), 2021 The importance of mission or safety critical software systems in many application domains of embedded systems is continuously growing, and so is the effort and complexity for reliability and safety analysis. Model driven development is currently one of the key approaches to cope with increasing development complexity, in general.
arxiv +1 more source
Data‐driven performance metrics for neural network learning
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri +2 more
wiley +1 more source
ALFRED: a methodology to enable component fault trees for layered architectures [PDF]
2015 41st Euromicro Conference on Software Engineering and
Advanced Applications, 2021 Identifying drawbacks or insufficiencies in terms of safety is important also in early development stages of safety critical systems. In industry, development artefacts such as components or units, are often reused from existing artefacts to save time and costs.
arxiv +1 more source
INCLUDING SYSTEMATIC FAULTS INTO FAULT TREE ANALYSIS [PDF]
IFAC Proceedings Volumes, 2006 : Fault Tree Analysis (FTA) is a technique widely used for fault forecasting of physical systems. Although FTA is considered a well established safety analysis technique, paradoxically classical Fault Trees include only random faults. However, in modem automated systems, undesirable events arise not only from random hardware faults but also from ...
Faure, Jean-Marc +2 more
openaire +3 more sources