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Journal articles on the topic 'Machining – Maintenance and repair'

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1

Molochnikov, Denis, Rustam Khalimov, Ilnar Gayaziev, Dmitry Rudoy, and Anastasiya Olshevskaya. "The improvement of the technique for determining technical condition of repair and maintenance equipment." E3S Web of Conferences 210 (2020): 08006. http://dx.doi.org/10.1051/e3sconf/202021008006.

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The authors of the paper have established the dependence of the technological system condition of repair equipment during its operation on the repair quality of machine parts. The technique has been proposed to determine the machining quality of the parts repaired. It is based on an integrated method for calculating and determining technical condition of typical repair equipment in view of the proposed integral criterion for assessing its vibration resistance.
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2

Marusich, K., and V. Druzhinin. "OVERVIEW OF MOBILE MACHINE DESIGNS FOR LARGE-SIZED PRODUCTS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 6, no. 9 (2021): 97–112. http://dx.doi.org/10.34031/2071-7318-2021-6-9-97-112.

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The repair of large-sized products without a specialized repair facility is usually not available due to the impossibility of ensuring high accuracy when performing mechanical processing. Nevertheless, dismantling and moving large-sized items to the repair facility significantly increase the downtime of the equipment being repaired, or it is technically impossible to perform. Specialized machines that are used to repair large-sized items in such facilities are unique and expensive. They are heavily loaded and this can lead to various risks associated with the timing of the repair. Therefore, i
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3

Rubio, Eva, María Villeta, José Valencia, and José Sáenz de Pipaón. "Cutting Parameter Selection for Efficient and Sustainable Repair of Holes Made in Hybrid Mg–Ti–Mg Component Stacks by Dry Drilling Operations." Materials 11, no. 8 (2018): 1369. http://dx.doi.org/10.3390/ma11081369.

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Drilling is one of the most common machining operations in the aeronautic and aerospace industries. For assembling parts, a large number of holes are usually drilled into the parts so that they can be joined later by rivets. As these holes are subjected to fatigue cycles, they have to be checked regularly for maintenance or repair, since small cracks or damage in its contour can quickly cause breakage of the part, which can have dangerous consequences. This paper focuses on finding the best combinations of cutting parameters to perform repair and maintenance operations of holes in stacked hybr
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Blanco, David, Eva María Rubio, Marta María Marín, and Joao Paulo Davim. "Repairing Hybrid Mg–Al–Mg Components Using Sustainable Cooling Systems." Materials 13, no. 2 (2020): 393. http://dx.doi.org/10.3390/ma13020393.

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This paper focused on the maintenance or repair of holes made using hybrid Mg–Al–Mg components by drilling, using two sustainable cooling techniques (dry machining and cold compressed air) and taking surface roughness on the inside of the holes as the response variable. The novelty of the work is in proving that the repair operations of the multi-material components (magnesium–aluminum–magnesium) and the parts made of aluminum and magnesium (separately) but assembled to form a higher component can be done simultaneously, thus reducing the time and cost of the assembly and disassembly of this t
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5

Berzosa, Fernando, Beatriz de Agustina, Eva María Rubio, and J. Paulo Davim. "Feasibility Study of Hole Repair and Maintenance Operations by Dry Drilling of Magnesium Alloy UNS M11917 for Aeronautical Components." Metals 9, no. 7 (2019): 740. http://dx.doi.org/10.3390/met9070740.

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Magnesium alloys are increasingly used due to the reduction of weight and pollutants that can be obtained, especially in the aeronautical, aerospace, and automotive sectors. In maintenance and repair tasks, it is common to carry out re-drilling processes, which must comply with the established quality requirements and be performed following the required safety and environmental standards. Currently, there is still a lack of knowledge of the machining of these alloys, especially with regards to drilling operations. The present article studies the influence of different cutting parameters on the
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6

Law, Mohit, Hendrik Rentzsch, and Steffen Ihlenfeldt. "Evaluating Mobile Machine Tool Dynamics by Substructure Synthesis." Advanced Materials Research 1018 (September 2014): 373–80. http://dx.doi.org/10.4028/www.scientific.net/amr.1018.373.

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Mobile machining solutions use autonomous machining units that can be transported to different part locations, making possible easy maintenance and repair of large industrial equipment. Every new part and location results in different boundary conditions for the mobile machine tool-part system; influencing the dynamics of the combined system and necessitating different strategies for part/machine referencing and clamping. To facilitate efficient mutability and modularity in mobile machining solutions, this paper presents a dynamic substructuring strategy that combines the response characterist
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7

Shekhar, Chandra, Madhu Jain, Ather Aziz Raina, and Javid Iqbal. "Optimal (N, F) policy for queue-dependent and time-sharing machining redundant system." International Journal of Quality & Reliability Management 34, no. 6 (2017): 798–816. http://dx.doi.org/10.1108/ijqrm-07-2016-0105.

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Purpose The purpose of this paper is to study the performance metrics of redundant repairable machining system which is applicable in various systems like computer and communication system, manufacturing and production system, etc. Design/methodology/approach In the present investigation, the authors develop Markov model for the system consisting of identical active operating machines which are prone to breakdown. The operating machines are under the care of one permanent repair facility that provides time-sharing basis repair services. The maintenance is facilitated with the provision of stan
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8

Aritonang, Ridho, and Thomas Sukardi. "Implementation of Maintenance and Repair of Workshop Tools on Machining Expertise Vocational High School in Yogyakarta Industry-Based." American Journal of Educational Research 7, no. 10 (2019): 670–76. http://dx.doi.org/10.12691/education-7-10-2.

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9

Yao, David D., and Shaohui Zheng. "Markov Decision Programming for Process Control in Batch Production." Probability in the Engineering and Informational Sciences 12, no. 3 (1998): 351–71. http://dx.doi.org/10.1017/s0269964800005246.

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A machining process produces a batch of n units every time period. At the end of the period, the units are inspected (provided inspection is cost free). Based on the inspection and the quality data as well as the system history, a decision is made as to whether the process is in control. If not, the process is “revised,” in terms of machine recalibration, maintenance, or repair. In the presence of inspection cost, there is also the need to decide whether to inspect the produced batch. We formulate the problem as Markov decision programs, considering both discounted and average costs. We prove
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10

Merkisz, Jerzy, Jarosław Markowski, Jarosław Kaluzny, and Robert Roszak. "The Numerical Analysis of Influence of Crankshaft Main Spindles Regeneration in Marine Engine on Stiffness and Eigenfrequency of the Crankshaft." Solid State Phenomena 236 (July 2015): 85–92. http://dx.doi.org/10.4028/www.scientific.net/ssp.236.85.

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Engine operating conditions of the main propulsion, static in principle with steady-state rotation speed of the crankshaft and engine load, also work under dynamic load conditions. These conditions cause additional distortion of the crankshaft and changes in the operating conditions of the shaft bearings. However, the greatest impact on the long and trouble-free operation has proper engine maintenance. Variable operating conditions and engine operating errors, unfortunately, often cause damage to the main bearings of the crankshaft. Repair of the damaged main bearing spindles of the shaft invo
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11

Fernández, Jacobo, Eva María Rubio, Diego Carou, and Raquel María Lorente-Pedreille. "Efficiency and Sustainability Analysis of the Repair and Maintenance Operations of UNS M11917 Magnesium Alloy Parts of the Aeronautical Industry Made by Intermittent Facing." Metals 11, no. 7 (2021): 1035. http://dx.doi.org/10.3390/met11071035.

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This paper analyzes the efficiency and sustainability of facing operations that are required within maintenance operations in the aeronautical industry. Due to the elevated cost and environmental impact of such processes, reducing the operating time while repairing parts is required. In this work, an experimental study of intermittent facing carried out on a magnesium alloy rod was developed. The experiment resembles real repair and maintenance machining operations, where an intermittent facing represents a more realistic scenario and where the results obtained in continuous turning studies ar
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12

Berzosa, Fernando, Eva María Rubio, Beatriz de Agustina, and J. Paulo Davim. "Geometric Optimization of Drills Used to Repair Holes in Magnesium Aeronautical Components." Metals 10, no. 11 (2020): 1534. http://dx.doi.org/10.3390/met10111534.

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Magnesium alloys are used in the aeronautical sector due to their excellent strength/weight ratios, motivated by the reduction of weight that their use entails. In this sector, drilling is one of the most common operations, if not the most, due to the large number of holes that are used in joining processes, mainly by riveting. The appearance of cracks is a risk to the structural safety of the components, such that it is necessary to regularly check them for maintenance and/or repair tasks. The present study tries to determine the optimization of the characteristics of the twist drills, which
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13

Patil, Rajkumar Bhimgonda, Basavraj S. Kothavale, and Laxman Yadu Waghmode. "Selection of time-to-failure model for computerized numerical control turning center based on the assessment of trends in maintenance data." Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability 233, no. 2 (2018): 105–17. http://dx.doi.org/10.1177/1748006x18759124.

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This article provides a generalized framework for selection of time-to-failure model based on the assessment of trends in failure and repair time data. This framework is based on modifications of existing frameworks and can be applied for binary as well as multi-state systems. The proposed framework is applied for reliability analysis of a computerized numerical control turning center. For analysis purpose, the failure data are collected for 50 computerized numerical control turning center over a period of 7 years for three different working conditions, that is, when machining material is stee
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14

Strong, Danielle, Michael Kay, Thomas Wakefield, Issariya Sirichakwal, Brett Conner, and Guha Manogharan. "Rethinking reverse logistics: role of additive manufacturing technology in metal remanufacturing." Journal of Manufacturing Technology Management 31, no. 1 (2019): 124–44. http://dx.doi.org/10.1108/jmtm-04-2018-0119.

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Purpose Although the adoption of metal additive manufacturing (AM) for production has continuously grown, in-house access to production grade metal AM systems for small and medium enterprises (SMEs) is a major challenge due to costs of acquiring metal AM systems, specifically powder bed fusion AM. On the other hand, AM technology in directed energy deposition (DED) has been evolving in both: processing capabilities and adaptable configuration for integration within existing traditional machines that are available in most SME manufacturing facilities, e.g. computer numerical control (CNC) machi
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15

Li, Fang Yuan. "Adopting Three-Level Inverter to Solve the Bearing Fault of Roll Forming." Advanced Materials Research 328-330 (September 2011): 2125–28. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.2125.

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During the roll forming factory, the front bearing of AC motor was always malfunction. The problem was that there was large axial vibration and the deterioration was in the trend of rapid development. In order to make early preparations for repairs and maintenance to determine the basis for decision-making, the motor bearings were under monitoring when running. In AC drive systems, bearings are more likely to be damaged from the highly accelerated/decelerated operation and the effects of electrical discharge machining resulting from high dv/dt, which are introduced by PWM input voltage. Multi-
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16

Selim, M., and Akturk*#Sinan Gurel. "Machining conditions-based preventive maintenance." International Journal of Production Research 45, no. 8 (2007): 1725–43. http://dx.doi.org/10.1080/00207540600703587.

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17

Black, George. "Instrument Maintenance and Repair." BioScience 36, no. 2 (1986): 66. http://dx.doi.org/10.2307/1310102.

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18

Vinck, Dominique. "Maintenance and Repair Work." Engineering Studies 11, no. 2 (2019): 153–67. http://dx.doi.org/10.1080/19378629.2019.1655566.

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19

Xiang, Ying, Rong Mo, and Hu Qiao. "Change and Maintenance Method for 3D Machining Procedure Model Based on Design Structure Matrix." International Journal of Pattern Recognition and Artificial Intelligence 32, no. 05 (2018): 1855006. http://dx.doi.org/10.1142/s0218001418550066.

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A change and maintenance method is proposed based on the change propagation model and the procedure model information for solving data maintenance problem of 3D machining procedure model change and to help improve the flexibility of 3D machining procedure model and the reliability of the change result. Design Structure Matrix (DSM) is established by analyzing the relationships between machining features in the machining process route to obtain all possible propagation paths. On the basis of obtained paths, machining features that may be affected and machining procedure models related to machin
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20

Dai, Liangtie, and Yujie Wu. "Trust Maintenance and Trust Repair." Psychology 06, no. 06 (2015): 767–72. http://dx.doi.org/10.4236/psych.2015.66075.

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21

Sim, S. H., and J. Endrenyi. "Optimal preventive maintenance with repair." IEEE Transactions on Reliability 37, no. 1 (1988): 92–96. http://dx.doi.org/10.1109/24.3721.

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22

Biehl, Markus, Edmund Prater, and John R. McIntyre. "Remote repair, diagnostics, and maintenance." Communications of the ACM 47, no. 11 (2004): 100–106. http://dx.doi.org/10.1145/1029496.1029501.

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23

WANG, HONGZHOU, and HOANG PHAM. "OPTIMAL AGE-DEPENDENT PREVENTIVE MAINTENANCE POLICIES WITH IMPERFECT MAINTENANCE." International Journal of Reliability, Quality and Safety Engineering 03, no. 02 (1996): 119–35. http://dx.doi.org/10.1142/s0218539396000090.

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This paper proposes three age-dependent preventive maintenance models with imperfect repair and/or imperfect preventive maintenance (pm). In these models imperfect repair is treated in a way that after repair the lifetime of a unit will decrease to a fraction of its immediately previous one and its repair time will increase to a multiple of immediately previous one. In this paper, the expected maintenance cost rate and asymptotic average availability are derived with a consideration that the maintenance and repair times are not negligible. The optimum maintenance policies are then determined f
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24

Kovalev, L. I., and I. L. Kovalev. "ANALYSIS SYSTEMS MAINTENANCE AND REPAIR LIVESTOCK." Russian Journal of Agricultural and Socio-Economic Sciences 42, no. 6 (2015): 13–21. http://dx.doi.org/10.18551/rjoas.2015-06.02.

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25

Li, Haijun, and Moshe Shaked. "Imperfect repair models with preventive maintenance." Journal of Applied Probability 40, no. 04 (2003): 1043–59. http://dx.doi.org/10.1017/s0021900200020283.

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Brown and Proschan (1983) introduced the imperfect repair model, in which an item, upon failure, is replaced with a new one with probability α, and is minimally repaired with probability 1 − α. In this paper we equip the imperfect repair model with preventive maintenance, and we obtain stochastic maintenance comparisons for the numbers of failures under different policies via a point-process approach. We also obtain some results involving stochastic monotonicity properties of these models with respect to the unplanned complete repair probability α.
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26

Milton, B. "REPAIR AND MAINTENANCE OF FLAT ROOFS." Property Management 6, no. 1 (1988): 40–46. http://dx.doi.org/10.1108/eb006682.

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27

Esposito, V., and S. Nocchia. "Maintenance and repair of rolling stock*." Welding International 22, no. 9 (2008): 627–34. http://dx.doi.org/10.1080/09507110802413274.

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28

Hammett, Michael. "The repair and maintenance of brickwork." Structural Survey 9, no. 2 (1991): 153–60. http://dx.doi.org/10.1108/eum0000000003248.

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29

Barco, A. L. "Budgeting for Facility Repair and Maintenance." Journal of Management in Engineering 10, no. 4 (1994): 28–34. http://dx.doi.org/10.1061/(asce)9742-597x(1994)10:4(28).

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30

Kelly, Maree. "Women's Home Maintenance and Repair Course." Urban Policy and Research 11, no. 2 (1993): 102. http://dx.doi.org/10.1080/08111149308551558.

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31

Gregson, Nicky, Alan Metcalfe, and Louise Crewe. "Practices of Object Maintenance and Repair." Journal of Consumer Culture 9, no. 2 (2009): 248–72. http://dx.doi.org/10.1177/1469540509104376.

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32

Li, Haijun, and Moshe Shaked. "Imperfect repair models with preventive maintenance." Journal of Applied Probability 40, no. 4 (2003): 1043–59. http://dx.doi.org/10.1239/jap/1067436099.

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Brown and Proschan (1983) introduced the imperfect repair model, in which an item, upon failure, is replaced with a new one with probability α, and is minimally repaired with probability 1 − α. In this paper we equip the imperfect repair model with preventive maintenance, and we obtain stochastic maintenance comparisons for the numbers of failures under different policies via a point-process approach. We also obtain some results involving stochastic monotonicity properties of these models with respect to the unplanned complete repair probability α.
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33

Eliasson, Pernilla, Therese Andersson, Jana Kulas, Petra Seemann, and Per Aspenberg. "Myostatin in tendon maintenance and repair." Growth Factors 27, no. 4 (2009): 247–54. http://dx.doi.org/10.1080/08977190903052539.

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34

Logan, Mary, Carol Davis-Smith, and Alan Gresch. "Maintenance and repair of anesthesia machines." AORN Journal 93, no. 2 (2011): 195. http://dx.doi.org/10.1016/j.aorn.2010.12.008.

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35

Taetzsch, Thomas, and Gregorio Valdez. "NMJ maintenance and repair in aging." Current Opinion in Physiology 4 (August 2018): 57–64. http://dx.doi.org/10.1016/j.cophys.2018.05.007.

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36

Bogutskiy, Vladimir Borisovich, Leonid Borisovich Shron, and Eleonora Sergeevna Gordeeva. "SYNTHESIS OF FLEXIBLE MACHINING MODULES FOR REPAIR EQUIPMENT." Theoretical & Applied Science 55, no. 11 (2017): 101–10. http://dx.doi.org/10.15863/tas.2017.11.55.13.

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37

Polyanskii, S. N., S. V. Butakov, I. S. Olkov, and V. A. Aleksandrov. "Repair of Turbine Components by Abrasive-Jet Machining." Journal of Machinery Manufacture and Reliability 50, no. 1 (2021): 72–78. http://dx.doi.org/10.3103/s1052618821010143.

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38

Jimenez-Cortadi, Alberto, Itziar Irigoien, Fernando Boto, Basilio Sierra, and German Rodriguez. "Predictive Maintenance on the Machining Process and Machine Tool." Applied Sciences 10, no. 1 (2019): 224. http://dx.doi.org/10.3390/app10010224.

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This paper presents the process required to implement a data driven Predictive Maintenance (PdM) not only in the machine decision making, but also in data acquisition and processing. A short review of the different approaches and techniques in maintenance is given. The main contribution of this paper is a solution for the predictive maintenance problem in a real machining process. Several steps are needed to reach the solution, which are carefully explained. The obtained results show that the Preventive Maintenance (PM), which was carried out in a real machining process, could be changed into
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39

BANNIKOV, Dmitry, Nina SIRINA, and Alexander SMOLYANINOV. "MODEL OF THE MAINTENANCE AND REPAIR SYSTEM IN SERVICE MAINTENANCE MANAGEMENT." Transport Problems 13, no. 3 (2018): 5–14. http://dx.doi.org/10.20858/tp.2018.13.3.1.

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40

Shankar, Gauri, and Vandana Sahani. "Reliability analysis of a maintenance network with repair and preventive maintenance." International Journal of Quality & Reliability Management 20, no. 2 (2003): 268–80. http://dx.doi.org/10.1108/02656710210429627.

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41

Godik, Eduard. "Health Care: Maintenance or Repair?: Preventive Maintenance Approach to Health Care." IEEE Pulse 4, no. 2 (2013): 38–39. http://dx.doi.org/10.1109/mpul.2013.2242015.

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42

Xu, Ken An. "Fault Analysis and Repair Computer Motherboard Interface." Applied Mechanics and Materials 687-691 (November 2014): 3415–18. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3415.

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This paper mainly presents the common malfunction analysis and maintenance of computer motherboard interface. First introduced the mainboard interface simple maintenance of the basic knowledge, and then analyzed the frequent failures of maintenance. In the end, enumerates the maintenance examples to further understand maintenance knowledge.
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43

Mi, Jie. "Burn-in and Maintenance Policies." Advances in Applied Probability 26, no. 01 (1994): 207–21. http://dx.doi.org/10.1017/s0001867800026082.

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Burn-in is a widely used method to improve quality of products after they have been produced. For a repairable component there are two common types of repair, complete repair and minimal repair. Preventive maintenance policies such as age replacement and block replacement are often employed in field operation. The present paper takes burn-in, maintenance and repair into consideration at the same time and considers related cost structures. The properties of the corresponding optimal burn-in times and optimal maintenance policies are discussed.
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44

Mi, Jie. "Burn-in and Maintenance Policies." Advances in Applied Probability 26, no. 1 (1994): 207–21. http://dx.doi.org/10.2307/1427587.

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Burn-in is a widely used method to improve quality of products after they have been produced. For a repairable component there are two common types of repair, complete repair and minimal repair. Preventive maintenance policies such as age replacement and block replacement are often employed in field operation. The present paper takes burn-in, maintenance and repair into consideration at the same time and considers related cost structures. The properties of the corresponding optimal burn-in times and optimal maintenance policies are discussed.
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45

Kirmani, S. N. U. A., and Ramesh C. Gupta. "On Repair Age Residual Repair Life in the Minimal Repair Process." Probability in the Engineering and Informational Sciences 3, no. 3 (1989): 381–91. http://dx.doi.org/10.1017/s0269964800001248.

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Some properties of repair age (the elapsed time since the last repair) and the residual repair life (the time until the next repair) are studied for the minimal repair process under various assumptions on the aging characteristics of the equipment under maintenance. Bounds on expected repair age and expected residual repair life are obtained. Some characterizations of the Poisson process are also proved.
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46

Block, Henry W., Naftali A. Langberg, and Thomas H. Savits. "Maintenance comparisons: block policies." Journal of Applied Probability 27, no. 3 (1990): 649–57. http://dx.doi.org/10.2307/3214548.

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Complete repair and minimal repair models with a block maintenance policy are considered. Each of these models gives rise to a counting process, and these processes are compared stochastically. This contrasts with most previous work on maintenance policies where only univariate marginal comparisons were made. Also a more general block schedule is considered than is customary.
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47

Block, Henry W., Naftali A. Langberg, and Thomas H. Savits. "Maintenance comparisons: block policies." Journal of Applied Probability 27, no. 03 (1990): 649–57. http://dx.doi.org/10.1017/s0021900200039188.

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Complete repair and minimal repair models with a block maintenance policy are considered. Each of these models gives rise to a counting process, and these processes are compared stochastically. This contrasts with most previous work on maintenance policies where only univariate marginal comparisons were made. Also a more general block schedule is considered than is customary.
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48

Uhlmann, Eckart, Florian Heitmüller, Marcel Manthei, and Sascha Reinkober. "Applicability of Industrial Robots for Machining and Repair Processes." Procedia CIRP 11 (2013): 234–38. http://dx.doi.org/10.1016/j.procir.2013.07.042.

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49

Duyun, T. A., I. V. Shrubchenko, A. V. Hurtasenko, and M. S. Goncharov. "Modeling a repair machining of a rotary kiln tire." IOP Conference Series: Materials Science and Engineering 560 (July 10, 2019): 012105. http://dx.doi.org/10.1088/1757-899x/560/1/012105.

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50

Savor, Zlatko, Gordana Hrelja, and Jure Radic. "The maintenance and repair of Dubrovnik bridge." IABSE Symposium Report 91, no. 2 (2006): 117–24. http://dx.doi.org/10.2749/222137806796236240.

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