Results 21 to 30 of about 153 (124)

A Bayesian Pipe Failure Prediction for Optimizing Pipe Renewal Time in Water Distribution Networks

open access: yesInfrastructures, 2022
The sustainable management of the water supply system requires methodologies to monitor, repair, or replace the aging infrastructure, but more importantly, it must be able to assess the condition of the networks and predict their behavior over time ...
Widyo Nugroho   +2 more
doaj   +1 more source

A Software Reliability Model with a Weibull Fault Detection Rate Function Subject to Operating Environments

open access: yesApplied Sciences, 2017
When software systems are introduced, these systems are used in field environments that are the same as or close to those used in the development-testing environments; however, they may also be used in many different locations that may differ from the ...
Kwang Yoon Song   +2 more
doaj   +1 more source

Optimal Decision for Repairable Products Sale and Warranty under Two-Dimensional Deterioration with Consideration of Production Capacity and Customers’ Heterogeneity

open access: yesAxioms, 2023
An effective warranty policy is not only an obligation for the manufacturer or vendor, but it also enhances the willingness of customers to purchase from them in the future.
Ming-Nan Chen, Chih-Chiang Fang
doaj   +1 more source

An NHPP Software Reliability Model with S-Shaped Growth Curve Subject to Random Operating Environments and Optimal Release Time

open access: yesApplied Sciences, 2017
The failure of a computer system because of a software failure can lead to tremendous losses to society; therefore, software reliability is a critical issue in software development.
Kwang Yoon Song   +2 more
doaj   +1 more source

A Software Reliability Model Considering the Syntax Error in Uncertainty Environment, Optimal Release Time, and Sensitivity Analysis

open access: yesApplied Sciences, 2018
The goal set by software developers is to develop high quality and reliable software products. During the past decades, software has become complex, and thus, it is difficult to develop stable software products.
Da Hye Lee   +3 more
doaj   +1 more source

Modeling Software Fault-Detection and Fault-Correction Processes by Considering the Dependencies between Fault Amounts

open access: yesApplied Sciences, 2021
Many NHPP software reliability growth models (SRGMs) have been proposed to assess software reliability during the past 40 years, but most of them have focused on modeling the fault detection process (FDP) in two ways: one is to ignore the fault ...
Qiuying Li, Hoang Pham
doaj   +1 more source

Parameter Estimation of $M_{t}/M/1/K$ Queueing Systems With Utilization Data

open access: yesIEEE Access, 2019
Utilization data are defined as the time series data consisting of time fractions of busy periods in fixed time intervals and are practically used to represent server conditions, such as CPU utilization. In general, it is more challenging to estimate the
Chen Li, Hiroyuki Okamura, Tadashi Dohi
doaj   +1 more source

A Generalized Software Reliability Growth Model With Consideration of the Uncertainty of Operating Environments

open access: yesIEEE Access, 2019
This paper proposes a generalized model to cover imperfect debugging and the uncertainty of the operating environment and its effect on fault detection rate into software reliability evaluation based on a non-homogeneous Poisson process (NHPP). Many NHPP
Qiuying Li, Hoang Pham
doaj   +1 more source

Field‐Data‐Based Wind Turbine Reliability Modelling: Quantifying Effects of Operating Age, Design and Technological Development

open access: yesWind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT As wind energy continues to expand, ensuring the reliability of wind turbines is critical for optimising operational efficiency and minimising downtime. Based on maintenance data from over 1,000 onshore and offshore wind turbines covering more than 4200 operating years, this study presents an analysis of wind turbine failure behaviour over ...
Julia Walgern   +3 more
wiley   +1 more source

A finite failure software reliability model using extended log-logistic distribution

open access: yesAIP Advances
Software reliability engineering has been developed to examine software systems over the years. Non-homogeneous Poisson process (NHPP) models are widely employed for analyzing software reliability data, as they have the ability to describe the expected ...
Haneen Ahmad Aseri   +2 more
doaj   +1 more source

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