Results 11 to 20 of about 1,830 (101)

Research on Prediction of Surface Deformation in Mining Areas Based on TPE-Optimized Integrated Models and Multi-Temporal InSAR

open access: yesRemote Sensing, 2023
The prevailing research on forecasting surface deformations within mining territories predominantly hinges on parameter-centric numerical models, which manifest constraints concerning applicability and parameter reliability. Although Multi-Temporal InSAR
Sichun Long   +8 more
doaj   +1 more source

Quantification of Simultaneous-AND Gates in Temporal Fault Trees [PDF]

open access: yes, 2013
Fault Tree Analysis has been a cornerstone of safety-critical systems for many years. It has seen various extensions to enable it to analyse dynamic behaviours exhibited by modern systems with redundant components. However, none of these extended FTA approaches provide much support for modelling situations where events have to be "nearly simultaneous",
Ernest Edifor   +2 more
openaire   +2 more sources

OBTAINING TEMPORAL AND TIMED PROPERTIES OF LOGIC CONTROLLERS FROM FAULT TREE ANALYSIS [PDF]

open access: yesIFAC Proceedings Volumes, 2006
One of the prerequisites for formal verification of logic controllers using model-checking is the formalization of properties to verify. The work presented in this paper proposes a method to elaborate the formal properties of a logic controller from a Fault Tree Analysis (FTA).
Santiago Barragan, Israel   +2 more
openaire   +2 more sources

Quantification of Temporal Fault Trees Based on Fuzzy Set Theory [PDF]

open access: yes, 2014
Fault tree analysis (FTA) has been modified in different ways to make it capable of performing quantitative and qualitative safety analysis with temporal gates, thereby overcoming its limitation in capturing sequential failure behaviour. However, for many systems, it is often very difficult to have exact failure rates of components due to increased ...
Gordon, Neil   +3 more
openaire   +2 more sources

An Automated Fault Tree Generation Approach With Fault Configuration Based on Model Checking

open access: yesIEEE Access, 2018
Fault tree generation technology is a key issue for safety analysis of large complex systems. Traditional safety analysis methods usually describe the origin, propagation, or concrete behavior of the fault and do not portray the constraints between ...
Lisong Wang   +4 more
doaj   +1 more source

Integrated Level 1–Level 2 decommissioning probabilistic risk assessment for boiling water reactors

open access: yesNuclear Engineering and Technology, 2018
This article describes an integrated Level 1–Level 2 probabilistic risk assessment (PRA) methodology to evaluate the radiological risk during postulated accident scenarios initiated during the decommissioning phase of a typical Mark I containment boiling
Davide Mercurio   +2 more
doaj   +1 more source

“Accidental” Encounters with the Ottoman Armenians in Contemporary Turkey

open access: yesÉtudes Arméniennes Contemporaines, 2015
This essay discusses a set of inadvertent encounters with the late 19th and early 20th century persecution of the Ottoman Armenians in light of Rosalind Morris’ notion of “accident,” which implicates the traumatic event as not just a distant, isolated ...
Eray Çaylı
doaj   +1 more source

Reliability Analysis of Dynamic Systems by Translating Temporal Fault Trees into Bayesian Networks [PDF]

open access: yes, 2014
Classical combinatorial fault trees can be used to assess combinations of failures but are unable to capture sequences of faults, which are important in complex dynamic systems. A number of proposed techniques extend fault tree analysis for dynamic systems.
Kabir, Sohag   +2 more
openaire   +2 more sources

ARATech2013 – a Web-based Tool for Risk Assessment

open access: yesChemical Engineering Transactions, 2016
The risk assessment analysis is perceived as the most important stage in preparation of the major accident prevention documentation in accordance with the Directive 96/82/EC. The risk assessment alone is a complex process and several procedures and their
Vaclav Frydrych   +2 more
doaj   +1 more source

Dynamic Fault Tree Generation and Quantitative Analysis of System Reliability for Embedded Systems Based on SysML Models

open access: yesSensors
As embedded systems become increasingly complex, traditional reliability analysis methods based on text alone are no longer adequate for meeting the requirements of rapid and accurate quantitative analysis of system reliability.
Changyong Chu, Weikang Yang, Yajun Chen
doaj   +1 more source

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