Results 61 to 70 of about 3,844,361 (299)
Comparison of reliability techniques of parametric and non-parametric method
Engineering Science and Technology, an International Journal, 2016 Reliability of a product or system is the probability that the product performs adequately its intended function for the stated period of time under stated operating conditions. It is function of time.
C. Kalaiselvan, L. Bhaskara Rao
doaj +1 more source
m-Consecutive-k-out-of-n: F Structures with a Single Change Point
Mathematics, 2020 In the present article, we introduce the m-consecutive-k-out-of-n:F structures with a single change point. The aforementioned system consists of n independent components, of which the first n1 units are identically distributed with common reliability p1,
Ioannis S. Triantafyllou
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Maximum Likelihood Performance of Mean Time to Failure for Right-Censored Data [PDF]
, 2009 In this paper failure times following Weibull, exponential and log-normal distribution are considered. The parameters of these distributions are estimated by the maximum likelihood method and these values are used to estimate other quantity of ...
Ibrahim, Noor Akma, Ng, Poh Bee
core
Creep failure in a threshold activated dynamics: Role of temperature during a sub-critical loading [PDF]
, 2019 Creep is a time-dependent deformation of solids at relatively low stresses, leading to the breakdown with time. Here we propose a simple model for creep failure of disordered solids, in which temperature and stress are controllable.
Hatano, Takahiro, Roy, Subhadeep
core +2 more sources
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Stochastic Analysis of a Priority Standby System under Preventive Maintenance
Applied Sciences, 2021 In this paper, we propose a system of two dissimilar units: one unit prioritizes operation (priority unit), and the other unit is kept as a cold standby (ordinary unit). In this system, we assume that the failures, repairs, and preventive maintenance (PM)
Khalaf S. Sultan, Mohamed E. Moshref
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Advancing Dynamic Fault Tree Analysis
, 2016 This paper presents a new state space generation approach for dynamic fault trees (DFTs) together with a technique to synthesise failures rates in DFTs. Our state space generation technique aggressively exploits the DFT structure --- detecting symmetries,
Junges, Sebastian +2 more
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FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Zanco Journal of Humanity SciencesIn this research two identical parallel electric generators with repair a failed one have been analyzed stochastically by two methods, first by method based on certain probability assumptions and second through three state Markov chain, classified as ...
Bestun Merza Abdulkareem
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Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source