Results 11 to 20 of about 1,990,178 (318)
Steady-state imperfect repair models
European Journal of Operational Research, 2020 Imperfect maintenance models are widely used in reliability engineering. This paper discusses relevant asymptotic properties for the steady-state virtual age processes. It is shown that the limiting distributions of age, the residual lifetime and the spread that describe an ordinary renewal process can be generalized to the stable virtual age process ...
Xingheng Liu +3 more
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Reducing degradation and age of items in imperfect repair modeling [PDF]
Test (Madrid), 2022 We develop new models for imperfect repair and the corresponding generalized renewal processes for stochastic description of repairable items that fail when their degradation reaches the specified deterministic or random threshold.
Finkelstein, Maxim, Cha, Ji Hwan
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Unobserved heterogeneity in stable imperfect repair models
Reliability Engineering & System Safety, 2020 Abstract This study investigates the effect of heterogeneity on the failures of repairable systems that undergo imperfect repairs, which are extensively used in reliability engineering. When considering a group of similar systems, the assumption that the repair processes are independent and identically distributed becomes questionable owing to the ...
Xingheng Liu +3 more
openaire +3 more sources
System Maintenance Using Several Imperfect Repairs Before a Perfect Repair
, 2021 Allowing several imperfect repairs before a perfect repair can lead to a highly reliable and efficient system by reducing repair time and repair cost. Assuming exponential lifetime and exponential repair time, we determine the optimal probability $p$ of ...
Smithson, Haixia, Sarkar, Jyotirmoy
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Virtual series-system models of imperfect repair [PDF]
Reliability Engineering & System Safety, 2019 Novel models of imperfect repair are fitted to classic reliability datasets. The models suppose that a virtual system comprises a component and a remainder in series. On failure of the component, the component is renewed, and on failure of the remainder, the component is renewed\ud and the remainder is minimally repaired.
Ibrahim Nafisah +3 more
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ECM formation and degradation during fibrosis, repair, and regeneration
npj Metabolic Health and DiseaseImperfect attempts at organ repair after repeated injury result in aberrant formation of extracellular matrix (ECM) and loss of tissue structure. This abnormal ECM goes from being a consequence of cellular dysregulation to become the backbone of a ...
Alejandro E. Mayorca-Guiliani +8 more
doaj +2 more sources
Imperfect repair in aging: senescent cells and the hepatic fibrotic niche. [PDF]
BMB RepAging proceeds in a nonuniform spatiotemporal manner across tissues. While metabolic stress and chronic inflammation are implicated, the underlying mechanisms remain elusive.
Kim J, Kim M, Kim C.
europepmc +2 more sources
IEEE Access, 2021 Power distribution centres distribute power to motor control centres in industrial facilities, as well as supply power to medium voltage drives among other loads. In reliability studies, the use of the combinatorial methods to evaluate the reliability of
Vonani Clive Mathebula +1 more
doaj +1 more source
Reliability analysis for a k/n(F) system with repairable repair-equipment [PDF]
, 2009 In this paper, the reliability and replacement policy of a k/n(F) (i.e. k-out- of-n: F) system with repairable repair-equipment is analyzed. We assume that both the working and repair times of all components in the system and the repair-equipment follow ...
Zhang, Yuan Lin, Wu, Shaomin
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Proc. ACM Hum. Comput. Interact., 2023 Conversational agents (CAs) can analyze online conversations using natural language techniques and effectively facilitate group discussions by sending supervisory messages.
H. Do +4 more
semanticscholar +1 more source