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Maintenance [PDF]

open access: yesJournal of Applied Economics, 2001
Maintenance and production interact. The ideal way of accounting for this interaction, when estimating production functions, is by picking the temporal length of observations so that they embed integer multiples of the production—maintenance cycles for ...
Jonathan E. Leightner
core   +3 more sources

In-service automatic welding technology for high-grade large-diameter oil and gas pipelines

open access: yesYou-qi chuyun, 2021
As more long-distance oil and gas pipelines with high pressure, large diameter, high steel grade and large wall thickness are constructed, the wall of the fittings such as the hot tapping tees and the repair sleeves that are involved in the in-service ...
Juan CHEN   +7 more
doaj   +1 more source

Digitalisation of maintenance [PDF]

open access: yes2017 2nd International Conference on System Reliability and Safety (ICSRS), 2017
The digitalisation of industry and the Industry 4.0 concept with its connected ICTs are important developments for the industry to acquire and implement to be able to keep ahead in competition. In connection to Industry 4.0, the predictive maintenance systems and approach are getting more popular in maintenance.
Campos, Jaime   +4 more
openaire   +5 more sources

Calculation and Analysis of Vibration Stress of Guangxi Nanning Subway during Operation

open access: yesAdvances in Civil Engineering, 2022
In this study, based on the Mindlin solution in elastic half-space, the stress calculation formula was determined with consideration of any point in the foundation under the dynamic amplification effect.
Zhenchao Chang   +9 more
doaj   +1 more source

Research progress of laser additive repair technology for military aircraft metal parts

open access: yesJournal of Aeronautical Materials, 2023
Laser additive repair technology is suitable to repair the metal parts of military aircraft. It is an important thrust to prolong the flight service life and improve the ability of independent maintenance.
XU Jinjun   +6 more
doaj   +1 more source

Fault Path Direct-Current Resistance Based Off-Line Single-Phase-To-Ground Fault Location

open access: yesZhongguo dianli, 2021
In order to figure out the off-line transmission line fault location, a new fault location method based on fault path direct current resistance measurement is proposed.
Fuzhi LI   +6 more
doaj   +1 more source

Research on Beidou and GPS dual satellite positioning algorithms for substation site positioning

open access: yesInternational Journal of Metrology and Quality Engineering, 2020
With the rapid development of global satellite navigation system technology, multi-mode satellite navigation positioning technology that can be compatible with multiple navigation systems at the same time is bound to become the future development trend ...
Feng Junjie   +3 more
doaj   +1 more source

Failure Mode Analysis and Maintenance of Railway Overhead Line Rigid Stainless Steel Droppers and Multi-Strand Copper Jumpers

open access: yesIET Electrical Systems in Transportation, 2023
Droppers and jumpers are important components of railway overhead line electrification. Their effective maintenance is critical for the railway’s safe and reliable operation; the consequences of their failure can be disproportionally serious.
Jingyu Du   +4 more
doaj   +1 more source

PROBLEM OF USING WASTE OF PAINT AND VARNISHING MATERIALS AND THEIR DISPOSAL

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the research. Corrosion of metals is the most important problem with which large losses of metals are associated. Hundreds of tons of metals are irretrievably lost annually from corrosion, therefore, all studies aimed at the corrosion ...
Aida L. Barkhanadzhyan   +5 more
doaj   +1 more source

Comparative study on the effectiveness of building maintenance scheduling between two multipurpose hall buildings [PDF]

open access: yes, 2021
Buildings maintenance is very important for the building and building occupants. Maintenance is a service to make sure the performance of the building in good condition throughout its design life.
Hilmi Syed Mohamad, Syed Burhanuddin Hilmi   +1 more
core   +1 more source

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