Results 31 to 40 of about 19,910,340 (167)

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

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

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

Seismic Structural Reliability by Time‐Variant Fragility Functions

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2669-2674, September 2026.
ABSTRACT The seismic vulnerability of aging structures is often represented in the form of fragility curves that vary with time. On one hand, each of these functions is intended to apply if the earthquake hits at the time the fragility refers to. On the other hand, performance‐based earthquake engineering (PBEE) resources to classical probabilistic ...
Iunio Iervolino
wiley   +1 more source

A comparison Generation Methods for Non Homogeneous Poisson Process Model Using Simulation

open access: yes, 2022
Non Homogeneous Poisson process has property with wide application in most scientific fields specialty communication systems fields and engineering fields queuing theory and reliability theory and repairable systems and others the much from phenomenon ...
Jasim Hassan Lazim
core  

A hierarchical model of non-homogeneous Poisson processes for Twitter retweets [PDF]

open access: yes
We present a hierarchical model of non-homogeneous Poisson processes (NHPP) for information diffusion on online social media, in particular Twitter retweets.
Lee C, Wilkinson DJ
core   +4 more sources

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

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

Failure Analysis and Maintenance Planning for Repairable Deteriorating Structural Systems Subject to Imperfect Maintenance

open access: yesQuality and Reliability Engineering International, Volume 42, Issue 3, Page 992-1008, April 2026.
ABSTRACT The analysis of a system that deteriorates under imperfect maintenance is essential in reliability engineering. Imperfect maintenance does not fully restore a system to its original condition, leading to complex degradation patterns. Statistical inference techniques allow for precise estimation of degradation parameters, maintenance effects ...
Reza Ahmadi, Mitra Fouladirad
wiley   +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

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