Results 21 to 30 of about 89,725,173 (290)

Mean time to failure of dams

, 2023
Abstract Dams are among the largest structures constructed by human. Their disasters result in numerous casualties and large material losses. The statistical analysis of the reasons for dam disasters was carried out by the International Commission on Large Dams.
Leszek Opyrchał, Aleksandra Bąk
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MAINTENANCE MANAGEMENT ANALYSIS OF INDUCE DRAFT FAN (IDF) EQUIPMENT OF COAL FIRE POWER PLANT (CFPP) LONTAR USING LIFE CYCLE COST ANALYSIS APPROACH

Spektrum Industri: Jurnal Ilmiah Pengetahuan dan Penerapan Teknik Industri, 2020
To maintain the performance to optimalization operating at Coal Fire Power Plant (CFPP) the reliability of power plant equipment needs to be maintained especially on critical equipment.
Nova Ardyanto, Winda Nur Cahyo
doaj   +1 more source

Reliability analysis of two dissimilar parallel unit repairable system with failure during preventive maintenance [PDF]

Management Science Letters, 2016
The main purpose of this research work is to present a reliability analysis of a two dissimilar parallel unit framework under the presumption that a framework’s unit may also fail during the preventive maintenance (PM).
Mohit Kumar Kakkar, Ashok K Chitkara, Jasdev Bhatti   +2 more
doaj   +1 more source

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, Nakayama, Marvin, Tuffin, Bruno   +2 more
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Flexible Boosting of Accelerated Failure Time Models [PDF]

, 2008
When boosting algorithms are used for building survival models from high-dimensional data, it is common to fit a Cox proportional hazards model or to apply semiparametric least squares techniques.
Torsten Hothorn, Hothorn Torsten, Hothorn, Torsten, Matthias Schmid, Schmid Matthias, Schmid, Matthias   +5 more
core   +1 more source

Delayed failure of software components using stochastic testing [PDF]

, 2012
The present research investigates the delayed failure of software components and addresses the problem that the conventional approach to software testing is unlikely to reveal this type of failure. Delayed failure is defined as a failure that occurs some
Gardiner, Jeremy
core   +7 more sources

Assessing Risk Priority Numbers of Failures in the Screw Tightening Machine of a Hard Disk Drive Production System

Journal of Machine Engineering, 2022
In a competitive environment, many production industries must reduce costs while maintaining asset value and reliability. In the manufacturing process, the machine is essential because downtime can inhibit and stop production. This study investigated the
Naraphorn Paoprasert, Wai Yan Htet Lin, Thepniramit Muneekaew   +2 more
doaj   +1 more source

The COACH risk engine: a multistate model for predicting survival and hospitalization in patients with heart failure [PDF]

, 2012
Aims: Several models for predicting the prognosis of heart failure (HF) patients have been developed, but all of them focus on a single outcome variable, such as all-cause mortality.
Postmus, Douwe; id_orcid, Buskens, Erik; id_orcid, Harjola, Veli-Pekka,, Lewsey, James, Postmus, D., Postmus, Douwe, Hans L. Hillege, Lassus, Johan,, Hillege, Hans L.,, James Lewsey, Luttik, Marie Louise, van Veldhuisen, Dirk J.,, Harjola, V.P., Hillege, Hans L., Nieminen, M.S., Lewsey, James,, Mebazaa, Alexandre,, Veli‐Pekka Harjola, van Veldhuisen, Dirk J., Harjola, Veli-Pekka, Markku S. Nieminen, Buskens, Erik,, Luttik, Marie Louise,, Jaarsma, Tiny,, Alexandre Mebazaa, Buskens, E., Douwe Postmus, van Veldhuisen, D.J., Hillege, H.L., Johan Lassus, Buskens, Erik, Erik Buskens, Postmus, Douwe,, Marie Louise Luttik, Nieminen, Markku S., Lassus, J., Mebazaa, A., Jaarsma, Tiny, Jaarsma, T., Lassus, Johan, Dirk J. van Veldhuisen, Nieminen, Markku S.,, Luttik, M.L., Tiny Jaarsma, Lewsey, J., Mebazaa, Alexandre   +45 more
core   +2 more sources

Combined m-Consecutive-k-Out-of-n: F and Consecutive k_c-Out-of-n: F Structures with Cold Standby Redundancy

Mathematics, 2023
In the present work, we study the combined m-consecutive-k-out-of-n: F and kc-out-of-n: F reliability systems, which consist of independent and identically distributed components.
Ioannis S. Triantafyllou
doaj   +1 more source

Is Mean Time to Failure (MTTF) Equal to Mean Time of Life for Unrepairable Systems? [PDF]

Journal of KONBiN, 2021
Abstract One of the most important reliability parameters is the mean time to failure (MTTF). It is widely accepted that the MTTF is equal to the mean time of life ET. This article shows that this is not necessarily true. Although for the most commonly used statistical distributions (such as exponential, Gaussian, chi-square, Fisher ...
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