نتایج جستجو برای: repair and maintenance

تعداد نتایج: 16871500  

Structural health monitoring of cracked structures is one of beloved subject of researchers recently. Consider of crack behavior in the water and energy pipeline is important because of environmental problems. In this paper consider of crack parameters in the underwater pipe subjected to mechanical transient load is investigated. For this purpose, three- dimensional parametric model of cracked ...

This paper presents a new mathematical model for a production system through a scheduling problem considering a material handling system as an intelligent transportation system by automated guided vehicles (AGVs). The traditional systems cannot respond to the changes and customer’s demands and for this reason, a flexible production system is used. Therefore, for this purpose, automated transpor...

ژورنال: پیاورد سلامت 2016
آذین مهر, لیلا, رجبی واسوکلایی, قاسم, رعدآبادی, مهدی, علی عسگر, فاطمه, موسوی, سید محمد هادی,

Background and Aim: Nowadays, hospitals believe that applying the principles of management improve quality, and enhance competition and development. One of the ways to achieve these goals is the use of 5S. This study is aimed to determine and compare  supporting departments of Amir Alam Hospital before and after the implementation of 5S. Materials and Methods: This descriptive analytical and...

Journal: :Jurnal Disprotek 2023

IMPLEMENTATION OF RELIABILITY CENTERED MAINTENANCE METHOD ON CRITICAL COMPONENTS STEAM TURBINE AT PT MADUBARUSteam turbine is a machine that can be used to convert heat energy from steam into mechanical so it produce electrical energy. As source of energy, Madubaru utilizes this turbine. The purpose research determine the Mean Time To Failure or MTTF and Repair MTTR values which components have...

Correct and timely maintenance of power lines and substations has an important impact on the operation and optimization of the production cycle and distribution of electricity. In this way, proper and timely maintenance and repair of these lines can reduce losses, sudden defects, and thus reduce and optimize consumption. One of the most important components of transmission and distribution netw...

2017
Christopher P. Kempes Peter M. van Bodegom David Wolpert Eric Libby Jan Amend Tori Hoehler

Microbes maintain themselves through a variety of processes. Several of these processes can be reduced or shut down entirely when resource availability declines. In pure culture conditions with ample substrate supply, a relationship between the maximum growth rate and the energy invested in maintenance has been reported widely. However, at the other end of the resources spectrum, bacteria are s...

2017
Fei Yi Zhuo Wang Jingwei Liu Ying Zhang Zhijun Wang Hongde Xu Xiaoman Li Ning Bai Liu Cao Xiaoyu Song

SMC1 (Structural Maintenance of Chromosomes protein 1), well known as one of the SMC superfamily members, has been explored to function in many activities including chromosome dynamics, cell cycle checkpoint, DNA damage repair and genome stability. Upon being properly assembled as part of cohesin, SMC1 can be phosphorylated by ATM and mediate downstream DNA damage repair after ionizing irradiat...

Journal: :Cell 2007
Anja Groth Walter Rocha Alain Verreault Geneviève Almouzni

Inheritance and maintenance of the DNA sequence and its organization into chromatin are central for eukaryotic life. To orchestrate DNA-replication and -repair processes in the context of chromatin is a challenge, both in terms of accessibility and maintenance of chromatin organization. To meet the challenge of maintenance, cells have evolved efficient nucleosome-assembly pathways and chromatin...

Journal: :Rel. Eng. & Sys. Safety 2001
Shey-Huei Sheu Ruey Huei Yeh Yuh-Bin Lin Muh-Guey Juang

In this paper we consider a Bayesian theoretic approach to determine an optimal adaptive preventive maintenance policy with minimal repair. By incorporating minimal repair, maintenance and replacement, the mathematical formulas of the expected cost per unit time are obtained. When the failure density is Weibull with uncertain parameters, a Bayesian approach is established to formally express an...

Journal: :CoRR 2016
Assia Boumahdaf Michel Broniatowski

This paper deals with the problem of preventive maintenance (PM) scheduling of pipelines subject to external corrosion defects. The preventive maintenance strategy involves an inspection step at some epoch, together with a repair schedule. This paper proposes to determine the repair schedule as well as an inspection time minimizing the maintenance cost. This problem is formulated as a binary in...

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