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Accelerating mean time to failure computations [PDF]
Performance Evaluation, 1996 Summary: We consider the problem of numerical computation of the mean time to failure (MTTF) in Markovian dependability and/or performance models. The problem can be cast as a system of linear equations which is solved using an iterative method preserving sparsity of the Markov chain matrix. For highly dependable systems, system failure is a rare event
Heidelberger, P. +2 more
semanticscholar +3 more sources
Challenging the Mean Time to Failure: Measuring Dependability as a Mean Failure Cost
2009 42nd Hawaii International Conference on System Sciences, 2009 As a measure of system reliability, the mean time to failure falls short on many fronts: it ignores the variance in stakes among stakeholders; it fails to recognize the structure of complex specifications as the aggregate of overlapping requirements; it fails to recognize that different components of the specification carry different stakes, even for ...
Ali Mili 0001, Frederick T. Sheldon
semanticscholar +3 more sources
Applied Sciences, 2023 The focus of this paper is to identify a method for defining the needs of logistical operational support based on the mean time to failure (MTTF) factor. The research was based on a helicopter intended for flight training. The MTTF indicator for selected
Andrzej Żyluk +5 more
doaj +4 more sources
On the estimation of the mean time to failure by simulation
2017 Winter Simulation Conference (WSC), 2017 The mean time to failure (MTTF) of a stochastic system is often estimated by simulation. One natural estimator, which we call the direct estimator, simply averages independent and identically distributed copies of simulated times to failure. When the system is regenerative, an alternative approach is based on a ratio representation of the MTTF.
Glynn, Peter +2 more
semanticscholar +5 more sources
Utility of Restricted Mean Survival Time Analysis for Heart Failure Clinical Trial Evaluation and Interpretation [PDF]
JACC: Heart Failure, 2020 OBJECTIVES The study sought to demonstrate the statistical and utilitarian properties of restricted mean survival time (RMST) and restricted mean time lost (RMTL) for assessing treatments for heart failure (HF) with reduced ejection fraction ...
Marco Sbolli +2 more
exaly +4 more sources
Reliability Assessment of On-Wafer AlGaN/GaN HEMTs: The Impact of Electric Field Stress on the Mean Time to Failure [PDF]
Micromachines, 2023 We present the mean time to failure (MTTF) of on-wafer AlGaN/GaN HEMTs under two distinct electric field stress conditions. The channel temperature (Tch) of the devices exhibits variability contingent upon the stress voltage and power dissipation ...
Surajit Chakraborty, Tae-Woo Kim
doaj +2 more sources
On the Generalized Decreasing Mean Time to Failure or Replaced Ordering. [PDF]
Comput Intell Neurosci, 2021 In this paper, we establish two new stochastic orders, DMTFR (decreasing mean time to failure or replaced) and GDMTFR (generalized decreasing mean time to failure or replaced), and mainly investigate properties of the GDMTFR order. Some characterizations of the GDMTFR order are given.
Wang H, Kang D, Yan L.
europepmc +3 more sources
Computers, 2022 Around the world, numerous companies strive to successfully facilitate digital transformation [...]
Leandros Maglaras
doaj +2 more sources
Variance reduction in mean time to failure simulations [PDF]
Proceedings of the 20th conference on Winter simulation - WSC '88, 1988 Perwez Shahabuddin +4 more
openaire +2 more sources
Mean Time to Failure of a Hydraulic Valve
International conference Fluid Power 2019: Conference Proceedings, 2019 Nejc Novak +3 more
openaire +2 more sources