Results 71 to 80 of about 88,324,744 (172)

An EM‐based likelihood inference for degradation data analysis using gamma process

open access: yesApplied Stochastic Models in Business and Industry, Volume 41, Issue 3, May/June 2025.
Abstract The gamma process is widely used for the lifetime estimation of highly reliable products that degrade over time. Typically, incomplete likelihood is used to estimate the model parameters and the reliability estimates for the first passage time distribution of the gamma process; however, it (i.e., pseudo method) does not consider interval ...
Lochana Palayangoda, N. Balakrishnan
wiley   +1 more source

Stochastic Modeling and Time‐Frequency Analysis for Predictive Maintenance of Automotive Suspension Systems

open access: yesApplied Stochastic Models in Business and Industry, Volume 41, Issue 3, May/June 2025.
ABSTRACT This article presents a real‐time predictive maintenance model of vehicle suspensions based on vibration signal analysis. The study is grounded in the observation that suspension wear and failure are primarily driven by cumulative stresses and external shocks encountered during vehicle operation.
Livio Fenga, Luca Biazzo
wiley   +1 more source

A unified model of mean-time-to-failure for electromigration, thermomigration, and stress-migration based on entropy production

open access: yes, 2019
We have revisited Black's equation of mean-time-to-failure (MTTF) for electromigration from the viewpoint that in irreversible processes, entropy production is the controlling behavior.
Tu, K. N., Gusak, A. M.
core   +1 more source

Maximum Likelihood Performance of Mean Time to Failure for Right-Censored Data [PDF]

open access: yes, 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 ...
Ng, Poh Bee, Ibrahim, Noor Akma
core   +1 more source

INFERENSI DATA UJI HIDUP TERSENSOR TIPE II BERDISTRIBUSI RAYLEIGH

open access: yesMedia Statistika, 2008
Abstrak Analisis data uji tahan hidup merupakan salah satu teknik analisis statistika yang banyak digunakan di bidang industri dan kesehatan. Data waktu hidup dapat berupa data lengkap atau data tersensor, dan merupakan variabel random nonnegatif ...
Tatik Widiharih, Wiwin Mardjiyati
doaj   +1 more source

Implementing an Operational Cloud‐Based Now‐ and Forecasting System for Space Weather Ground Effects in the UK

open access: yesSpace Weather, Volume 23, Issue 5, May 2025.
Abstract The enhanced variation of the magnetic field during severe to extreme geomagnetic storms induces a large geoelectric field in the subsurface. Grounded infrastructure can be susceptible to geomagnetically induced currents (GICs) during these events.
C. D. Beggan   +12 more
wiley   +1 more source

Reliability Analysis of an IoT-Enabled Street-Side Plant Bed Protection and Monitoring System in Residential Areas

open access: yesTelecom
Unauthorized plucking of flowers, fruits, and vegetables from residential plant beds is a recurring concern in urban and semi-urban household, causing damage to gardening resources, economic loss and inconvenience to sustainable gardening.
Pardeep Kumar, Amit Kumar, Sanjeev Kumar
doaj   +1 more source

Dataset for estimating occurrence probability of causations for plugged, abandoned and decommissioned oil and gas wells

open access: yesData in Brief, 2020
This article contains the dataset on the failure frequencies of the barrier and mechanical plugs in place within the hydrocarbon-containing wellbore during plugging and abandonment operation.
Ahmed Babaleye   +2 more
doaj   +1 more source

Computing Steady-State Mean Time To Failure for Non-Coherent Repairable Systems

open access: yes, 2008
Mean time to failure (MTTF) is an important reliability measure. Previous research is mainly concerned with the MTTF computation of coherent systems. In this paper, we derive equations to calculate the steady-state MTTF for non-coherent systems. Based on
Dazhi Wang, Kishor S. Trivedi
core  

Manajemen Alat Pelindung Diri (APD) dengan pendekatan Mean Time To Failure (MTTF) dan Forecasting di PT PETROSIDA GRESIK [PDF]

open access: yes, 2018
PT. Petrosida Gresik bergerak di bidang produsen perlindungan tanaman (pestisida) dalam bentuk granule,dan cair untuk menunjang sektor industri pertanian.
Rifai, Mohammad Nur   +2 more
core   +1 more source

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