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Articoli di riviste sul tema "Maintenance and repair"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Smithson, Haixia, and Jyotirmoy Sarkar. "System Maintenance Using Several Imperfect Repairs Before a Perfect Repair." Statistics, Optimization & Information Computing 9, no. 1 (2021): 176–88. http://dx.doi.org/10.19139/soic-2310-5070-861.

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Allowing several imperfect repairs before a perfect repair can lead to a highly reliable and efficient system by reducing repair time and repair cost. Assuming exponential lifetime and exponential repair time, we determine the optimal probability $p$ of choosing a perfect repair over an imperfect repair after each failure. Based on either the limiting availability or the limiting average repair cost per unit time, we determine the optimal number of imperfect repairs before conducting a perfect repair.

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2

Al-Refaie, Abbas, Ahmad Al-Hawadi, and Natalija Lepkova. "Blockchain Design with Optimal Maintenance Planning." Buildings 12, no. 11 (2022): 1902. http://dx.doi.org/10.3390/buildings12111902.

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Rapid advancement of data management and sharing technology has urged organizations to develop effective maintenance management systems. This research, therefore, proposes and implements an Electronic Repair Records (ERR) system for the blockchain of maintenance planning and management. In ERR, this research develops two optimization models for scheduling and sequencing failure repairs from different types over multiple periods. Each failure repair is treated as a block, for which the data, current hash, and previous hash are obtained from failure repair parameters, resources availability info

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3

Kayan, Brit Anak. "Green maintenance for heritage buildings: paint repair appraisal." International Journal of Building Pathology and Adaptation 35, no. 1 (2017): 63–89. http://dx.doi.org/10.1108/ijbpa-05-2016-0011.

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Purpose Sustainability encapsulates economic, environmental and societal domains. In order to conform to these domains, the efficiency of maintenance and repair of heritage buildings is no exception. Emergently, environmental considerations for sustainable heritage buildings repair have become increasingly important. The purpose of this paper is to present a decision-making process based on “Green Maintenance Model” – an appraisal approach based on life cycle assessment (LCA) of paint repair options for heritage buildings. Design/methodology/approach Calculation procedures of Green Maintenance

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4

Butusova, Valeria A., Yuriy A. Davydov, Alexey S. Kushniruk, and Denis Yu Drogolov. "Reducing locomotive maintenance costs with intelligent software." International Journal of Advanced Studies 15, no. 2 (2025): 7–24. https://doi.org/10.12731/2227-930x-2025-15-2-338.

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This article introduces novel computer software designed to optimize maintenance schedules for traction rolling stock (TRS). The software analyzes TRS failure/breakdown data, considering reliability and cost-efficiency parameters, to recommend optimal inter-repair mileage standards. It analyzes locomotive component reliability indicators, investigates failure distribution hypotheses, and offers cost-effective recommendations for adjusting maintenance intervals. This data-driven approach addresses the limitations of traditional, generalized maintenance schedules by dynamically adapting to speci

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5

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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6

Mytko, Mykola. "DETERMINATION OF ECONOMIC ADVISABLE DISTANCES OF AUTOMOBILE DELIVERY ON AUTOSERVICE ENTERPRISE." ENGINEERING, ENERGY, TRANSPORT AIC, no. 1(108) (August 27, 2020): 58–64. http://dx.doi.org/10.37128/2520-6168-2020-1-7.

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In order to increase the efficiency of the operation of motor transport enterprises, the structure of production units for maintenance and repair of cars should be determined by the scope of work, taking into account the cost of implementation of the unit labor complexity of works. In case of inappropriateness of creating or maintaining an MTE of separate production units, maintenance and repairs of cars should be carried out at specialized service centers. Therefore, with the improvement of production units of motor transport enterprises structure, it is important to provide economically expe

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7

Bulhakov, R., and O. Chesnok. "APPROACH TO THE UNIFICATION OF MOBILE MAINTENANCE EQUIPMENT AND REPAIR OF ROCKET-ARTILLERY WEAPONS." Collection of scientific works of Odesa Military Academy 1, no. 14 (2021): 150–58. http://dx.doi.org/10.37129/2313-7509.2020.14.1.150-158.

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The article analyzes approaches to the unification of mobile means of maintenance and repair, and in particular, on the nomenclature of missile and artillery weapons. The classification of mobile means of maintenance and repair has been carried out. A list of the main malfunctions of missile and artillery weapons, which are eliminated through military repair, is given. The analysis of the main problems of maintenance and repair at the initial stage of the Anti-terrorist operation is carried out, and on the basis of trends in the development of mobile maintenance and repair facilities in the le

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8

Z Taj, S., S. M Rizwan, B. M Alkali, D. K Harrison, and G. Taneja. "Performance Analysis of a Rod Breakdown System." International Journal of Engineering & Technology 7, no. 3.4 (2018): 243. http://dx.doi.org/10.14419/ijet.v7i3.4.16782.

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The paper presents performance analysis of a rod breakdown system consisting of two machines operating in parallel. Ten years maintenance data of the system depicts three maintenance practices: repair, major preventive maintenance and minor preventive maintenance. Machines are repaired on normal failures, whereas major/minor preventive maintenance is carried out at scheduled basis. The machines are queued for major preventive maintenance. An operative machine requires a cooling period of half hour before undergoing major preventive maintenance. Repair is prioritized over major preventive maint

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9

Kovalev, L. I., and I. L. Kovalev. "Calculation of the basic salary and key provisions of the methodology of determining the total costs for the technical service of machines and equipment in livestock." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 2 (February 1, 2021): 58–65. http://dx.doi.org/10.33920/sel-10-2102-07.

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The most important provisions of the methodology for calculating the basic wages of personnel of repair and maintenance departments and organizations operating in the livestock subcomplex of the agro-industrial complex are presented. The main points of the methodology for calculating the total costs of maintenance and repairs for machines and equipment of livestock farms and complexes are given in relation to the conditions and peculiarities of accounting and planning of repair and maintenance work in livestock raising. An example of practical calculation of costs for various types of maintena

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10

Borisenko, Alexander N. "Enhancement of the maintenance and repair system for haul trucks in cold regions using a digital twin of the transportation enterprise." Architecture, Construction, Transport, no. 4(110) (2024): 88–97. https://doi.org/10.31660/2782-232x-2024-4-88-97.

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This study addresses the increasing number of failures, downtime, and maintenance and repair costs associated with BelAZ 7513 and 7530 series haul trucks operating in the extreme climatic conditions of Khakassia’s coal mines. An assessment of the actual specific downtime for these trucks during repair and maintenance reveals values ranging from 3 to 60 hours per 100 operating hours, significantly exceeding the 14-15-hour standard for Khakassia’s cold climate. A method of temperature correction for maintenance frequency during winter was proposed to reduce scheduled maintenance frequency and th

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11

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

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12

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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13

Yin, Chao, Changsheng Xie, Jiguang Wan, Chih-Cheng Hung, Jinjiang Liu, and Yihua Lan. "BMCloud: Minimizing Repair Bandwidth and Maintenance Cost in Cloud Storage." Mathematical Problems in Engineering 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/756185.

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To protect data in cloud storage, fault tolerance and efficient recovery become very important. Recent studies have developed numerous solutions based on erasure code techniques to solve this problem using functional repairs. However, there are two limitations to address. The first one is consistency since the Encoding Matrix (EM) is different among clouds. The other one is repairing bandwidth, which is a concern for most of us. We addressed these two problems from both theoretical and practical perspectives. We developed BMCloud, a new low repair bandwidth, low maintenance cost cloud storage

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14

Sokolova, N. G., and N. M. Mezrina. "Software for Calculating Economic Standards Adjusted in Terms of the Market Value of Equipment." Intellekt. Sist. Proizv. 19, no. 4 (2021): 118–29. http://dx.doi.org/10.22213/2410-9304-2021-4-49-118-129.

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The complexity of software for improving and monitoring processes related to the repair and maintenance of equipment at industrial enterprises is an automated system for the maintenance and repair of equipment, which plays an important role in the market planning of equipment maintenance and repair. Due to the fact that there was a need to write software for calculating economic standards in the market planning of equipment maintenance and repair, a program was written. The introduction of the software in the market planning of equipment maintenance and repair is economically justified in term

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15

ALSUHAIBANI, SALEH A. "Farm Machinery Breakdown Classification – Seed drills." JOURNAL OF ADVANCES IN AGRICULTURE 6, no. 1 (2016): 813–21. http://dx.doi.org/10.24297/jaa.v6i1.5389.

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Work job orders for 196 seed drills collected by HADCO (Hail Agricultural Development Company), Saudi Arabia, were used in this study. The work job orders were classified in terms of the parts used and the cost of each item. Distribution of repair and maintenance as listed in the work-job orders was classified as repairs by 55% while 45% was found to be maintenance. Moreover, Classification of repair and maintenance for parts of seed drills was 66% for rapair jobs and 34% for manitinance jobs. Cost ratio term was developed, by dividing the repair or maintenance cost by the seed drill purchase

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16

Kayan, Brit Anak, Alan M. Forster, and Phillip F. G. Banfill. "Green Maintenance for historic masonry buildings: an option appraisal approach." Smart and Sustainable Built Environment 5, no. 2 (2016): 143–64. http://dx.doi.org/10.1108/sasbe-05-2015-0010.

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Purpose – Sustainability is well understood to encapsulate economic, environmental and societal parameters. The efficiency of maintenance interventions for historic buildings is no exception and also conforms to these broad factors. Recently, environmental considerations for masonry repair have become increasingly important and this work supports this growing area. The purpose of this paper is to give insight on how an option appraisal approach of “Green Maintenance” modelling for historic masonry buildings repair practically determine and ultimately substantiate the decision-making process us

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17

Simangunsong, Jumadi, Nindhia Hutagaol, and Faizal Asrul Pasaribu. "Implementasi Aplikasi Internal Service Order (ISO) Berbasis Web pada Perusahaan Manufaktur Furniture." Jurnal Informatika: Jurnal Pengembangan IT 9, no. 2 (2024): 151–63. http://dx.doi.org/10.30591/jpit.v9i2.6813.

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Technological advancements and competitive challenges in the industrial sector have driven an increasing need for information systems. The implementation of information systems is believed to significantly enhance a company’s operational effectiveness and efficiency. In the furniture manufacturing industry, production machines are critical assets that require regular maintenance. PT Ebako Nusantara operates more than 200 production machines. Overall, the demand for machine repairs at PT Ebako Nusantara is managed manually, leading to frequent delays and difficulties in tracking repair history.

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18

Petrishchev, N. A., A. S. Sayapin, V. A. Kazakova, and M. N. Kostomakhin. "Contribution of the Virgin Land Branch of GOSNITI to the Creation of a Repair and Maintenance Base for Tractors K-700A and K-701." Agricultural Machinery and Technologies 19, no. 1 (2025): 77–85. https://doi.org/10.22314/2073-7599-2025-19-1-77-85.

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Tractors K-700A and K-701 of the Kirovets family manufactured by Kirovsky Zavod have been used in agriculture for more than fifty years and their effective operation would have been impossible without the established repair and maintenance base; vast regulatory and technical documentation; equipment for maintenance and repair. (Research purpose) The research purpose is analyzing the development and production experience of the Virgin Land Branch of GOSNITI to improve the efficiency of servicing high-power tractors obtained during the creation of the repair and maintenance base of tractors K-70

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19

Mansoor, Khan Khattak Fahim Ullah. "Maintenance and Repair Cost of Company Wise Vehicles: A Case Study of the University of Agriculture Peshawar, Pakistan." International Journal of Engineering Works 1, no. 3 (2015): 56–63. https://doi.org/10.5281/zenodo.15752.

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Maintenance and repair cost for vehicles not only determines replacement time but also decreases total costs. This study compares maintenance and repair cost of various vehicles manufactures (Buses such as Isuzu, Bedford, HinoPak; (Hiaces such as Toyota and Mitsubishi) and (Pickups such as Toyota, Mitsubishi and Nissan) to recommend an affective and economical manufacture for end users. Data for the study was collected from The University of Agriculture Peshawar, Pakistan through mean accumulated maintenance and repair cost for company wise basis vehicles. During the last 11 years, the univers

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20

Blokus, Agnieszka, and Przemysław Dziula. "Relations of Imperfect Repairs to Critical Infrastructure Maintenance Costs." Sustainability 13, no. 9 (2021): 4917. http://dx.doi.org/10.3390/su13094917.

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This article presents an analysis of maintenance costs and maintenance policy of critical infrastructure systems, considering the case of imperfect repair. The maintenance costs of the systems, considering a multistate approach and imperfect repairs, are analyzed with reference to the renewal stream and renewal process theory. Availability characteristics of repairable critical infrastructure systems with non-negligible renovation time, necessary for the cost analysis, are determined based on classical renewal theory. We assume that the system is renewed after exceeding its critical reliabilit

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21

Putra, Bagas, and Mulyadi Mulyadi. "Repair and Maintenance of Ceramic Mould Pressing Machine." Procedia of Engineering and Life Science 7 (February 22, 2024): 111–17. http://dx.doi.org/10.21070/pels.v7i0.1571.

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This article presents the best practices for the maintenance and repair of ceramic pressing machines, which are crucial components of the ceramic production process. The goal is to ensure smooth operation, prevent unexpected breakdowns, and maintain production efficiency and quality. Regular maintenance, including cleaning, checking of critical components, and replacement of worn or damaged parts, is essential. Repairs should be carried out by trained and experienced technicians who can detect and fix problems before they become serious. Proper training for maintenance staff and machine operat

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22

Kadyrova, Aziza. "Digitalization of Enterprises and Electronic Certification of Equipment of Hazardous Production Facilities." NBI Technologies, no. 3 (March 2021): 23–27. http://dx.doi.org/10.15688/nbit.jvolsu.2020.3.4.

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Stable trouble-free operation of industrial enterprises with hazardous production facilities largely depends on the reliable operation of the main (technological) equipment, which is ensured by timely inspections, technical services and repairs within automated control systems for the maintenance and repair of equipment of hazardous production facilities. In this regard, the electronic certification of equipment or otherwise the creation of electronic repair and maintenance passports is the most important part of the work on the creation of a digital enterprise. The creation of repair and main

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23

Vorobiev, P. A. "Improving the efficiency of repair departments as a key element of the production process." Upravlenie kachestvom (Quality management), no. 12 (November 16, 2023): 40–46. http://dx.doi.org/10.33920/pro-01-2312-06.

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In the past, maintenance and repair (MRO) was seen by many as a “necessary evil,” an activity that cost money but provided nothing in return. Twenty or more years ago, maintenance workers were among the lowest-paid employees in full-service manufacturing plants, even though their jobs required the most technical skill, knowledge, and specialized training. Initially, repairs were carried out as necessary and when equipment broke down, but the more extensively the same type of equipment was used, the more data on failures could be collected. This made it possible to improve the maintenance syste

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24

Buryak, P., �. Parkhomchuk, and Ye Buryak. "IMPROVEMENT OF THE REPAIR SYSTEM OF AUTOMOTIVE VEHICLES OF THE NATIONAL GUARD OF UKRAINE." Collection of scientific works of the National Academyof the National Guard of Ukraine 1, no. 37 (2021): 52–59. http://dx.doi.org/10.33405/2409-7470/2021/1/37/237843.

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In the military units of the National Guard of Ukraine, a system for repairing automotive vehicles has been introduced, which provides for current, secondary and overhaul repairs. Maintenance of machines is carried out in order to eliminate malfunctions arising from the use of machines, and allows the replacement of individual units, including the main one. The average repair consists in the replacement or overhaul of not more than half of the main units. Overhaul restores the life of the machine and should be carried out at specialized enterprises of the Ministry of Defense of Ukraine or at o

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25

Toigambayev, S., N. Martinova, K. Shavazov, and N. Telovov. "Justification of the methods of material and technical maintenance and repair of agricultural machines." Journal of Physics: Conference Series 2176, no. 1 (2022): 012089. http://dx.doi.org/10.1088/1742-6596/2176/1/012089.

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Abstract This work substantiates the rational structure of the repair and maintenance base of agricultural machinery, methods for determining the needs for material and technical means, taking into account the appropriate proportions between the links of the repair network. The maintenance and restoration of the operability of tractors and other agricultural machines in sufficient limits is ensured, as is known, with the help of a system of maintenance and repair, which provides for the implementation of preventive maintenance operations and the conduct of routine and major repairs of machines

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26

Mickūnaitis, Valentinas, and Saulius Nagurnas. "THE IMPROVEMENT OF THE TECHNICAL EXPLOITATION OF AUTOMOBILES." TRANSPORT 17, no. 4 (2002): 143–46. http://dx.doi.org/10.3846/16483840.2002.10414031.

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This article analyses the factors that considerably influence the efficiency of automobile technical exploitation. It has been noted that automobile technical exploitation is basically determined by the following factors: the system and organizational level of automobile technical maintenance and repairs; the level of service basis; qualification of the staff; the level of stock and supply; the structure and age of automotive fleet and conditions of exploitation. This article presents the analysis of the first factor. The factor is significant enough and does not involve big investments. A the

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Rekiana Jati Kusuma and Minto Basuki. "Analisa Teknis dan Ekonomis Perawatan Terencana Kapal KM.Mutiara Ferindo 5 Roro 9000GT." Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim 2, no. 3 (2023): 185–206. https://doi.org/10.58192/ocean.v2i3.1189.

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In this case it refers to the purpose of the content in this final project, namely by compiling a schedule for the Implementation of KM.Mutiara Ferindo 5 Ship Maintenance during the docking process at the PT.PAL Indonesia shipyard. Making a schedule includes what components are repaired when the ship is in a condition shipyard, make a ship maintenance management schedule that has been carried out in the shipyard. The data used in this thesis are data from PT.Antosim Lampung Pelayaran Surabaya and the researchers themselves. The type of data used in this research is primary data. will be relate

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Xiao, Liangjun. "Design of a JSP based Mobile Phone Repair Reservation System." Frontiers in Science and Engineering 4, no. 9 (2024): 158–64. http://dx.doi.org/10.54691/zvxwp730.

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With the development of the times, mobile phones are becoming more and more popular. The increase in the number of mobile phones will lead to an increase in the number of mobile phone repairs. Developing a mobile phone repair appointment system can be beneficial for mobile phone repairs. The mobile phone repair reservation system adopts the B/S mode, using Eclipse software as the system development tool and Java programming language for system development. The system database adopts SQL Server database. In system development, JSP and Servlet technologies are used to help users repair their pho

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SEMYKINA, A. S., and N. A. ZAGORODNIY. "IMPROVEMENTOFTHESYSTEMOF MAINTENANCE AND REPAIR OF QUARRY MOTOR TRANSPORT." World of transport and technological machines 78, no. 3-4 (2022): 35–41. http://dx.doi.org/10.33979/2073-7432-2022-4(78)-3-35-41.

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To improve the system of maintenance and repair, the criterion of rationality of the system of maintenance and repair of engines of mining vehicles is determined, taking into account the costs of maintenance and repair, as well as the type of repair enterprise and the operating time of engine parts. By reducing the cost of maintenance and repair and increasing the engine resource, the efficiency of a rational maintenance and repair system is achieved.

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Rangan, A., and R. Esther Grace. "Optimal replacement policies for a deteriorating system with imperfect maintenance." Advances in Applied Probability 21, no. 4 (1989): 949–51. http://dx.doi.org/10.2307/1427781.

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A system is repaired on failure. With probability p, it is returned to the ‘good as new' state (perfect repair) and with probability 1 – p, it is returned to the functioning state, but is only as good as a system of age equal to its age at failure (imperfect repair). In this article, we develop replacement policies for a deteriorating system with imperfect maintenance. The successive survival times and consecutive repair times form a geometric process which is stochastically non-increasing or non-decreasing respectively. Explicit expressions are obtained for the long-run expected cost under tw

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Rangan, A., and R. Esther Grace. "Optimal replacement policies for a deteriorating system with imperfect maintenance." Advances in Applied Probability 21, no. 04 (1989): 949–51. http://dx.doi.org/10.1017/s0001867800019194.

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A system is repaired on failure. With probabilityp,it is returned to the ‘good as new' state (perfect repair) and with probability 1 –p, it is returned to the functioning state, but is only as good as a system of age equal to its age at failure (imperfect repair). In this article, we develop replacement policies for a deteriorating system with imperfect maintenance. The successive survival times and consecutive repair times form a geometric process which is stochastically non-increasing or non-decreasing respectively. Explicit expressions are obtained for the long-run expected cost under two k

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Katayev, Yuriy V., Valeriy S. Gerasimov, Vladimir I. Ignatov, Zoya N. Mishina, and Nikolay K. Baulin. "OPTIMIZATION OF THE REPAIR AND MAINTENANCE BASE OF THE AGRO-INDUSTRIAL COMPLEX." Tekhnicheskiy servis mashin 3, no. 144 (2021): 64–71. http://dx.doi.org/10.22314/2618-8287-2021-59-3-64-71.

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The repair industry in almost all countries has entered a critical period, characterized by the need to combine and use various strategies and technologies for maintenance and repair of new equipment, as well as equipment produced many years ago. (Research purpose) The research purpose is in analyzing the state of the repair and maintenance base of the agro-industrial complex and justifying the possibilities of its modernization using intelligent technologies. (Materials and methods) Authors used methods of generalizing data from various services of agro- industrial formations of individual re

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Chikhladze, Z. D. "DECISION SUPPORT SYSTEM FOR MANAGING THE PROCESS OF MAINTENANCE AND REPAIR OF EQUIPMENT IN THE PLACES OF ITS OPERATION." Spravochnik. Inzhenernyi zhurnal, no. 319 (October 2023): 28–34. http://dx.doi.org/10.14489/hb.2023.10.pp.028-034.

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The article discusses the relevance of developing a decision support system for managing the process of maintenance and repair of equipment in operating organizations. Enterprises that carry out maintenance and repair of equipment in the places of its operation are faced with the problem of the complexity of forecasting, and consequently, making effective and informed management decisions. The problem is also aggravated by the fact that the methods used at enterprises, developed for enterprises of a centralized manufacturing type, do not allow to fully take into account the specifics of the wo

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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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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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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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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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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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Abstract (sommario):

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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39

Malik, S. C., and Sudesh K. Barak. "A Standby System with Priority to Repair over Preventive Maintenance." International Journal of Engineering Research 3, no. 4 (2014): 241–44. http://dx.doi.org/10.17950/ijer/v3s4/412.

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40

Huynh, Khac Tuan, and Antoine Grall. "A condition-based maintenance model with past-dependent imperfect preventive repairs for continuously deteriorating systems." Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability 234, no. 2 (2019): 333–58. http://dx.doi.org/10.1177/1748006x19884210.

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Abstract (sommario):

Most condition-based imperfect maintenance models developed over the last few decades are memoryless in the sense that maintenance efficiency is completely [Formula: see text]-independent of previous interventions. However, many maintenance activities exhibit their past dependency in engineering practice, and this significant property should not be ignored in maintenance modeling. In this spirit, our aim is to develop a condition-based maintenance model for continuously deteriorating systems subject to a special kind of past-dependent imperfect repairs. Such a repair can put the system back to

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41

DENISOV, A. S., and E. V. FEKLIN. "THE IMPACT OF THE COST AND QUALITY OF TECHNICAL SERVICE ON THE PERFORMANCE OF CITY BUSES." World of transport and technological machines 78, no. 3-1 (2022): 109–15. http://dx.doi.org/10.33979/2073-7432-2022-1(78)-3-109-115.

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Abstract (sommario):

The article deals with the impact of the organization of maintenance and repair of buses on the safety and efficiency of their operation. A mathematical model for calculating the total cost of repairs is presented. The dependences of changes in repair costs on the quality of maintenance are revealed. Differentiation of spare parts and maintenance materials into groups taking into account the characteristics of the volume of consumption is made. The dependences of the average volume of consumption of units/units/parts on their cost for the period under consideration, equal to one month, have be

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42

Kataev, A. V., and E. F. Malykha. "Organization and improvement of the structure of repair cycles of agricultural machinery." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 6 (June 30, 2024): 3–8. http://dx.doi.org/10.33920/sel-10-2406-01.

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Abstract (sommario):

The article discusses the issues of organization and improvement of the structure of repair cycles during routine maintenance of equipment. The use of a rational structure of the repair cycle allows the fullest use of the potential resource of machines and their components, helps to reduce downtime in repairs and the efficient use of production capacities of repair enterprises.

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43

Lee, Je-Soon, and Kyoung-Ok Park. "Political Improvement for Long-Term Repair Plans and the Execution of Maintenance Reserves for Multi-Family Housing Complexes." Research Institute of Human Ecology 26, no. 3 (2022): 123–41. http://dx.doi.org/10.36357/johe.2022.26.3.123.

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Abstract (sommario):

Background/Objectives: Because of poor or inadequate regulations, long-term repair arrangements do not often reflect the management needs of multi-family housing complexes. This study gives political improvement suggestions for multi-family housing complex long-term repair plans that included establishment, reviews, plan coordination, and maintenance reserve accumulation and execution. Methods: Long-term repair plan and reserve accounting documents for multi-family housing complexes from 1994 to 2021 were examined using frequency and percentage. The Multi-family Housing Management Act of

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44

Antonenko, I. N. "The Influence of the Type of Repair Organization on Occupational Safety and Injury Rate." Occupational Safety in Industry, no. 12 (December 2023): 48–56. http://dx.doi.org/10.24000/0409-2961-2023-12-48-56.

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Abstract (sommario):

An important task of an industrial enterprise is to ensure the reliability of equipment at the operational stage. For this purpose, repair activities are carried out at the enterprise, which involve hazards and risks in the field of occupational safety and health protection. The hazards of emergency repairs are related to their unplanned, sudden, emergency and non-standardized operations. Often unforeseen situations arise, works are performed without prior detailed risk analysis and without elaborated procedures for their implementation. These circumstances are the hazards with which incident

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45

Pan, Nai-Hsin, and Kuei-Yen Chen. "Facility Maintenance Traceability Information Coding in BIM-Based Facility Repair Platform." Advances in Civil Engineering 2020 (August 8, 2020): 1–12. http://dx.doi.org/10.1155/2020/3426563.

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Abstract (sommario):

The importance of facility management (FM) has gradually been recognized in the life cycle of a building. Both new and existing buildings require a more efficient approach and advanced technology to improve the efficiency of the FM. The study is aimed to enhance the facility repair process. Thus, the study presents a building information modeling (BIM)-based facility repair platform framework, which enables expedited reporting for repairs and a comprehensive listing of the status, location, and maintenance record facilities. To effectively facilitate the FM information transfer among stakehold

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46

Kim, Dong-Young, and Won-Jik Yang. "Analysis of Repair Standards for Efficiency of School Facilities Centered on Seoul Metropolitan Office of Education." Journal of the Korean Society of Hazard Mitigation 22, no. 6 (2022): 1–10. http://dx.doi.org/10.9798/kosham.2022.22.6.1.

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Abstract (sommario):

Recently, the Act on the Safety and Maintenance of Educational Facilities, which imposes the establishment of an integrated information network for educational facilities, was implemented in Korea. With the operation of this network becoming mandatory, a legal system was established to manage information on the safety and maintenance of educational facilities systematically. This study aims to prepare an efficient maintenance plan by analyzing data on the maintenance history of educational facilities. The durability of each repair work is calculated by analyzing its repair cycle, and a systema

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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. 3 (1990): 649–57. http://dx.doi.org/10.2307/3214548.

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Abstract (sommario):

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

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.

Testo completo

Abstract (sommario):

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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49

Grudz, Volodymyr, Yaroslav Grudz, Ivan Pavlenko, et al. "Ensuring the Reliability of Gas Supply Systems by Optimizing the Overhaul Planning." Energies 16, no. 2 (2023): 986. http://dx.doi.org/10.3390/en16020986.

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Abstract (sommario):

The aim of the article is the development of methods for optimal overhaul planning of compressor station equipment. Nowadays, due to uncertainties in the forecast of gas supply flow rates, increasing the reliability and energy efficiency of main gas pipelines is an urgent problem. The dependence of operating costs for major repairs on the maintenance periodicity is extreme. Reducing equipment’s maintenance period leads to an increase in repair costs. It also increases the reliability of equipment operation. Overall, all these facts reduce the probability of emergency failures and related expen

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Magdiyev, Shovkat Pulatovich, Murodjon Iskandarovich Rakhmatov, and Zavqiddin Zayniddinovich Sharopov. "MAINTENANCE AND REPAIR OF TRANSMISSION UNITS AND MECHANISMS." Modern Scientific Research International Scientific Journal 1, no. 4 (2023): 181–91. https://doi.org/10.5281/zenodo.8226033.

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Abstract (sommario):

The main faults of transmission units., Clutch failure, Faults in the gearbox and distribution box, Diagnostics of transmission units, Maintenance of transmission units, Maintenance of gearbox and distribution box.

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