Results 41 to 50 of about 35,310,836 (192)

Reliability growth prediction of mine-used low-voltage switchgear

Gong-kuang zidonghua, 2015
A mine low-voltage switchgear was taken as object to study its reliability growth process in the commissioning phase in underground coal mine. It was clarified that number of mine-used low-voltage switchgear failure occurrence accompanied with repair ...
XIA Haoxuan, LIU Zixu, WANG Jingqin, YANG Chunwen, WANG Li   +4 more
doaj   +1 more source

Update Equipment Critically Rating Dan Analisa Kestabilan Maintenance Equipment Kategori A Dengan Nilai Mean Time Between Failures Di Pabrik PA1 B0102 PT Petrokimia Gresik

Otopro, 2018
Hasil update ECR (Equipment Critically Rating) pada pabrik PA1 functional location B0102 ditemukan beberapa equipment yang sudah tidak digunakan, beberapa equipment turun tingkat krtitisnya dibandingkan dengan sebelumnya, hal ini dikarenakan perbedaan ...
Arnes Setya Prayogo, R. Fairuz Zamani
doaj   +1 more source

Efficient estimation of the mean time between failures in non-regenerative dependability models [PDF]

Proceedings of the 25th conference on Winter simulation - WSC '93, 1993
In this paper we discuss fast simulation techniques for estimating the steady-state mean time between failures (MTBF) in non-Markovian models of highly dependable systems. The key is to use a ratio representation of the MTBF, in which the denominator is closely related to the probability of a rare event and is therefore amenable to estimation using ...
Glynn, P.W., Heidelberger, P., Nicola, Victor F., Shahabuddin, P.   +3 more
openaire   +2 more sources

Statistical approach for insulation coordination of high voltage substation exposed to lightning strikes

Electrical engineering & Electromechanics
Introduction. Insulation coordination requires accurate prediction of overvoltages at various points within a substation. Computer simulations of electromagnetic transients in real structures of substations become more precise due to the improvements of ...
S. Bedoui, A. Bayadi
doaj   +1 more source

Enhancing Reliability Indices in Power Distribution Grids Through the Optimal Placement of Redundant Lines Using a Teaching–Learning-Based Optimization Approach

Energies
Given the pressing need to strengthen operational reliability in electrical distribution networks, this study proposes an optimization methodology based on the Teaching–Learning-Based Optimization (TLBO) algorithm for the strategic location of redundant ...
Johao Jiménez, Diego Carrión, Manuel Jaramillo   +2 more
doaj   +1 more source

Research on the intelligent control system for lithium-ion aluminium shell power battery module stacking

Mechanics & Industry
During the stacking and welding process of lithium-ion aluminium shell power battery modules, the accumulation of cell size errors can easily cause the module length to exceed the tolerance range, affecting the module length qualification rate and the ...
Sheng Qingshan, Sirikham Adisorn, Konpang Jessada, Wu Heng   +3 more
doaj   +1 more source

Analysis of the reasons for low mean time between failures of pumping equipment at a high-viscosity permo-carbon oil deposit

Наука. Инновации. Технологии
Sucker-rod pumping unit in operation after huff and puff cyclic steam injection operates in a wide range of rheological properties of fluids and medium temperatures.
D. A. Ivanov
doaj   +1 more source

Increasing The Capacity Of Plant Bottlenecks By Using Of Improving The Ratio Of Mean Time Between Failures To Mean Time To Repair

, 2016
A significant percentage of production costs is the maintenance costs, and analysis of maintenance costs could to achieve greater productivity and competitiveness. With this is mind, the maintenance of machines and installations is considered as an essential part of organizational functions and applying effective strategies causes significant added ...
Jalal Soleimannejad, Mohammad Asadizeidabadi, Mahmoud Koorki, Mojtaba Azarpira   +3 more
openaire   +2 more sources

Bank failures in banking panics: Risky banks or road kill? [PDF]

Are banks that fail in banking panics the riskiest ones prior to the panics? The free banking era in the United States provides useful data to examine this question because the assets held by the banks were traded at the New York Stock Exchange.
Gerald P. Dwyer, Jr., R.W. Hafer
core  

Temporal trends and reliability of computed tomography scanner failures: evidence from a real-world time-series analysis

Frontiers in Physics
ObjectiveWe aimed to characterize temporal and component-specific patterns of CT malfunctions and identifying optimal monitoring intervals are critical to strengthening preventive maintenance and informed equipment management.MethodsThis study collected ...
Xiaoxiao Luan, Sujuan Yu, Shaohua Yin, Zhenlin Liu, Dongxu Wang, Ying Xiao, Ruoyao Pan, Boqi Jia, Feng Xu, Yun Tian, Yun Tian, Rong Li   +11 more
doaj   +1 more source