Results 21 to 30 of about 1,251,821 (277)

Lifetime Benefit Analysis of Intelligent Maintenance: Simulation Modeling Approach and Industrial Case Study

open access: yesApplied Sciences, 2021
The introduction of Industry 4.0 is expected to revolutionize current maintenance practices by reaching new levels of predictive (detection, diagnosis, and prognosis processes) and prescriptive maintenance analytics.
Helge Nordal, Idriss El-Thalji
doaj   +1 more source

The impact of location privacy on opportunistic networks [PDF]

open access: yes, 2011
Opportunistic networking involves forwarding messages between proximate users, who may or may not know one another. This assumes that users are willing to forward messages to each other. This assumption may not hold if users are concerned about using the
Parris, Iain   +3 more
core   +1 more source

Maintenance Grouping Optimization for Offshore Wind Turbine Considering Opportunities Based on Rolling Horizon Approach

open access: yesPolish Maritime Research, 2018
In future, offshore wind turbines may be consider a crucial part in the supply of energy. Maintenance processes are directed to attain a safe and reliable operation of offshore machines and wind turbines.
Lua Yang   +3 more
doaj   +1 more source

Practical privacy and security for opportunistic networks [PDF]

open access: yes, 2014
When in physical proximity, data can be directly exchanged between the mobile devices people carry - for example over Bluetooth. If people cooperate to store, carry and forward messages on one another's behalf, then an opportunistic network may be formed,
Parris, Iain
core   +2 more sources

An Optimal Opportunistic Maintenance Planning Integrating Discrete- and Continuous-State Information

open access: yesMathematics, 2023
Information-driven group maintenance is crucial to enhance the operational availability and profitability of diverse industrial systems. Existing group maintenance models have primarily concentrated on a single health criterion upon maintenance ...
Fanping Wei   +4 more
doaj   +1 more source

Maintenance Optimization for Two-Component Series Systems With Degradation Dependence

open access: yesIEEE Access, 2021
This paper proposes a model of maintenance optimization for a system consisting of two dependent components in long-term operation, where both components are subject to dependent degradation.
Wei-Ning Ma   +3 more
doaj   +1 more source

Dynamic Preventive Maintenance Optimization of Subway Vehicle Traction System Considering Stages

open access: yesApplied Sciences, 2022
The current maintenance mode of the subway vehicle traction system does not consider the change of failure rate in the operation of components, and there is an unreasonable maintenance interval and high maintenance cost.
Qi Gong, Li Yang, Yonghua Li, Bin Xue
doaj   +1 more source

An effective opportunistic maintenance policy for a global service [PDF]

open access: yesInternational Journal of Services Sciences, 2010
The aim of the present paper is to develop a model for an effective maintenance policy with refer to a global service contract between a services provider company and a company for the waste management. The contract requires, with fixed performance levels of the service, the supplying of a mandatory set of maintenance services on a set of waste ...
openaire   +1 more source

An improved opportunity maintenance model of complex system

open access: yesAdvances in Mechanical Engineering, 2019
To solve the problems of multiple parts, high cost of disassembly, and imperfect maintenance in multi-component complex systems, an opportunistic maintenance model of multi-component complex systems based on a time threshold is proposed in this article ...
Qinghe Yuan   +3 more
doaj   +1 more source

An improved opportunistic group replacement maintenance strategy for wind turbines

open access: yesEnergy Science & Engineering, 2020
In traditional opportunistic group replacement maintenance (OGRM) strategy for wind turbines, the reliability thresholds of different subassemblies are set the same and its two‐step optimization for maintenance cost is diseconomy.
Zhiyong Ma   +4 more
doaj   +1 more source

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