Results 21 to 30 of about 4,488,567 (254)

Safety analysis of marine nuclear reactor in severe accident with dynamic fault trees based on cut sequence method

open access: yesNuclear Engineering and Technology, 2022
Dynamic fault tree (DFT) and its related research methods have received extensive attention in safety analysis and reliability engineering. DFT can perform reliability modelling for systems with sequential correlation, resource sharing, and cold and hot ...
Fang Zhao   +5 more
doaj   +1 more source

March AB, March AB1: new March tests for unlinked dynamic memory faults [PDF]

open access: yes, 2005
Among the different types of algorithms proposed to test static random access memories (SRAMs), March tests have proven to be faster, simpler and regularly structured. New memory production technologies introduce new classes of faults usually referred to
Di Natale, Giorgio   +9 more
core   +1 more source

Railway Safety Risk Assessment and Control Optimization Method Based on FTA-FPN: A Case Study of Chinese High-Speed Railway Station

open access: yesJournal of Advanced Transportation, 2020
In order to make safety risk assessment more accurately and more reasonably for high-speed railway station in China, this paper analyzes risk factors of fault tree and transfers the fault tree of risk accident into fuzzy petri net and then builds the FPN-
Qi Zhang   +4 more
doaj   +1 more source

Dynamic fault tree analysis based on the structure function [PDF]

open access: yes, 2011
International audienceThis paper presents an algebraic approach allowing to perform the analysis of any Dynamic Fault Tree (DFT). This approach is based on the ability to formally express the structure function of DFTs.
Guillaume Merle   +5 more
core   +2 more sources

Constraint analysis for extended dynamic fault tree

open access: yesTongxin xuebao, 2017
As a new extension of dynamic fault trees,time delay gate was proposed.This new mechanism can be used to model the time delay on the fault propagation from the lower level subsystems to the higher level system.The dynamic Bayesian networks was extend to ...
Qi-xuan WU   +5 more
doaj   +2 more sources

Empirical Evaluation of State Event Fault Tree and Dynamic Fault Tree for the Safety Analysis of Ambient Assisted Living [PDF]

open access: yes, 2013
Most of the evolution in ambient assisted living is due to embedded systems that dynamically adapt themself to react to environmental changes or component/subsystem failures to maintain a certain level of safety.
Taibi, Davide (Dr.)   +2 more
core   +2 more sources

Dynamic Fault Tree Based on Weibull Distribution

open access: yes, 2011
The fault tree analysis is a widely used method for evaluation of systems reliability and safety. Dynamic fault tree (DFT) extend traditional FT by defining additional gates called dynamic gates to model these complex interactions. Markov models are used
Shu Yan Liu, Wei Gang Guo, Wei Han
core   +1 more source

Dynamic Reliability Evaluation of Diesel Generator System of One Chinese 1000MWe NPP Considering Temporal Failure Effects

open access: yesFrontiers in Energy Research, 2021
Loss of power supply from the diesel generator system (DGS) after loss of offsite power (LOOP) will pose great threat to the safety of GEN-II pressurized water reactors (PWR). Therefore, it is very desirable to evaluate the DGS’s reliability.
Dingqing Guo   +4 more
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Analysis on Dynamic Fault Tree Based on Fuzzy Set

open access: yes, 2011
In case of fault tree analysis of large complex system, the probability of bottom event in dynamic fault tree is uncertain in some cases. To address the problem, the paper presented a dynamic fault tree analysis method based on fuzzy set computation. The
Li Ping Yang
core   +1 more source

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