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Tytuł:
Route Availability Model for Inter-working Multi-hop Wireless Networks
Autorzy:
Salami, O.
Bagula, A.
Chan, H. A.
Powiązania:
https://bibliotekanauki.pl/articles/226944.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
inter-working
multi-hop
route availability
wireless network
Opis:
In order to link a source-destination node pair in inter-working multi-hop wireless networks, links or routes must first be available. It is only after establishing the availability of links and routes between nodes that factors which affect connectivity e.g. interference can be considered. Connectivity in multi-hop wireless networks has been studied. However, the studies focused on network connectivity in ad-hoc networks. Since the next generation of wireless networks will be inter-working, an understanding of connectivity as it applies to such networks is needed. Specifically, this paper emphasizes that an analysis of route connectivity rather than network connectivity is needed for inter-working multi-hop wireless networks. With a focus on route connectivity, a route availability model for inter-working multi-hop wireless networks is presented.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 2; 185-190
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maintenance strategy maximising availability rate
Eksploatacyjna strategia maksymalizacji wskaźnika gotowości
Autorzy:
Rosiński, A.
Powiązania:
https://bibliotekanauki.pl/articles/223883.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electronic system for transport
transport system
availability rate
systemy elektroniczne w transporcie
transport
wskaźnik gotowości
Opis:
Electronic equipment operates under various conditions. Due to characteristic nature of its applications (e.g. in transport), it should be highly reliable. Many years’ worth of observations show, those systems not only require their constituting parts to function up to par, but also their maintenance has to be efficiently managed. This paper presents maintenance strategies and particularly focuses on maintenance strategy enabling maximising the availability rate.
Systemy elektroniczne pracują w zróżnicowanych warunkach eksploatacji. Z uwagi na specyficzny charakter ich zastosowania (np. w transporcie), powinny one cechować się wysokim poziomem niezawodności. Wieloletnie obserwacje procesu użytkowania tych systemów pozwalają stwierdzić, iż ich poprawne funkcjonowanie zależy nie tylko od niezawodności części składowych, ale także od efektywnego zarządzania ich eksploatacją. W artykule zaprezentowano strategie eksploatacyjne, ze szczególnym uwzględnieniem strategii eksploatacji pozwalającej na maksymalizację wartości wskaźnika gotowości systemu.
Źródło:
Archives of Transport; 2012, 24, 4; 553-569
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics and study of make-to-stock and make-to-availability production strategy using simulation modelling
Autorzy:
Ciechańska, Olga
Szwed, Cezary
Powiązania:
https://bibliotekanauki.pl/articles/1841406.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
make-to-stock strategy
make-to-availability strategy
simulation modelling
Opis:
Make-To-Stock (MTS) and Make-To-Order (MTO) are the two traditional strategies in production management. In the case of the MTS there is a growing demand for a new approach, which is called Make-To-Availability (MTA) strategy. The paper characterizes and compares the MTS and MTA strategies. The comparative analysis based, among others, on computational experiments carried out in a computer program developed in Microsoft Visual Studio 2017 Environment was presented. The models have been prepared for both strategies with the same assumptions: external conditions (market demand) and internal conditions (structure of the production process). The investigation of how the strategies respond to various scenarios of demand intensity was done. The simulation models were prepared and validated for the case of the production line in one of the industrial automation company. The research shows that the use of the MTA strategy in the majority of cases gives much better results than the use of the MTS strategy due to the minimization of storage costs and the costs of non-fulfillment of the customers’ demand. The directions for further research were also presented.
Źródło:
Management and Production Engineering Review; 2020, 11, 4; 68-80
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability and availability assessment of diesel locomotive using fault tree analysis
Autorzy:
Szkoda, M.
Kaczor, G.
Powiązania:
https://bibliotekanauki.pl/articles/224203.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
reliability assessment
availability
fault analysis
rail vehicles
locomotive
Monte Carlo simulation
ocena niezawodności
dostępność
analiza błędów
pojazdy kolejowe
lokomotywa
metoda Monte Carlo
Opis:
The article presents an application of a method based on fault tree analysis and the Monte Carlo simulation in the assessment of reliability and availability of the rail means of transport. The primary target of the presented method is a cause and effect assessment of the occurrence of undesirable events, the determination of selected reliability indices and identification of the weakest components of rail vehicle that affect the downtime and technical availability most strongly. To illustrate the application of the presented method, the results of a project involving a 6Dg diesel locomotive, carried out in cooperation with the biggest Polish rail carrier, are shown. The assessment of availability and reliability was based on real operation data of a selected sample of seventy-five locomotives. Based on the collected data from the operation of the 6Dg locomotives, the times-to-failure and the times-to repair models were determined. A fault tree model of the locomotive was developed to assess the influence of the faults of the components on the reliability of the vehicle. A discrete simulation process allows to obtain a chosen characteristics and values of the selected measures, which – according to the authors – may be applied to assess the reliability and availability of the rail vehicles. Specialist software including Weibull++, BlockSim and MiniTab aided calculations were performed. The software includes and advanced solutions in the range of the reliability and availability simulations. The test results indicate that the proposed solution has a wide applicability potential.
Źródło:
Archives of Transport; 2016, 40, 4; 65-75
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of the availability of resources, the allocation of buffers and number of workers on the effectiveness of an assembly manufacturing system
Autorzy:
Kłos, S.
Trebuna, P.
Powiązania:
https://bibliotekanauki.pl/articles/407452.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
computer simulation
availability of resources
buffer allocation
throughput analysis
work-in-progress
Opis:
This paper proposes the application of computer simulation methods in order to analyse the availability of resources, buffers and the impact of the allocation of workers on the throughput and work-in-progress of a manufacturing system. The simulation model of the production system is based on an existing example of a manufacturing company in the automotive industry. The manufacturing system includes both machining and assembly operations. Simulation experiments were conducted vis-`a-vis the availability of the different manufacturing resources, the various allocations of buffer capacities and the number of employees. The production system consists of three manufacturing cells – each cell including two CNC machines – and two assembly stations. The parts produced by the manufacturing cells are stored in buffers and transferred to the assembly stations. Workers are allocated to the manufacturing cells and assembly stations, but the number of workers may be less than number of workplaces and are thus termed ‘multi-workstations’. Using computer simulation methods, the impact of the availability of resources, the number of employees and of the allocation of buffer capacity on the throughput and work-in-progress of the manufacturing system is analysed. The results of the research are used to improve the effectiveness of manufacturing systems using a decision support system and the proper control of resources. Literature analysis shows that the study of the impact of buffer capacities, availability of resources and the number of employees on assembly manufacturing system performance have not been carried out so far.
Źródło:
Management and Production Engineering Review; 2017, 8, 3; 40-49
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The modeling of business impact analysis for the loss of integrity, confidentiality and availability in business processes and data
Modelowanie skutków biznesowych dla utraty poufności, integralności i dostępności danych i procesów biznesowych
Autorzy:
Bagiński, J.
Rostański, M.
Powiązania:
https://bibliotekanauki.pl/articles/375634.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
security
availability
continuity
business impact
risk assessment
BIA
Opis:
In this article, authors analyze methods of the analysis of data integrity, security and availability loss results for business processes. Assessing those results, one can judge the importance of a process in organization; thus, determine which business process requires more attention. The importance of those processes can be determined with Business Impact Analysis (BIA). In article, first phase of BIA is presented - in specific, a construction of Business Impact Category Tables, Loss Levels and process weight calculation methods. A variety of weight calculating methods is presented. Authors also present their proposed method - square sum percentage - as a solution eliminating problems of other weight calculation methods in business impact analysis.
Realizowany przez Instytut Technik Innowacyjnych EMAG system OSCAD (Otwarty Szkieletowy System Zarządzania Ciągłością Działania) ma realizować komputerowe wspomaganie zarządzania ciągłością działania organizacji (w tym również zarządzanie ciągłością działania infrastruktury IT) oraz zarządzanie bezpieczenśtwem informacji przetwarzanych w instytucji, jej systemach informatycznych. Komputerowe wspomaganie będzie obejmowało m.in. takie elementy, jak zarządzanie ryzykiem oraz zarządzanie incydentami. Opisywana w artykule metoda analizy ryzyka została zaimplementowana w module służącym do analizy i oceny poziomu ryzyka dla danych przetwarzanych w organizacji oraz realizowanych procesów. Wynikiem działania tego modułu jest następnie raport z listą zabezpieczeń wdrożonych oraz wymaganych do wdrożenia w organizacji Autorzy analizują sposób modelowania skutków biznesowych dla utraty poufności, integralności i dostępności danych i procesów biznesowych. Zaprezentowano pierwszą fazę BIA (analizy skutków biznesowych), a zwłaszcza konstrukcję tabeli kategorii skutków biznesowych. Przedstawiono różne metody kalkulacji wagi (znaczenia) procesu dla organizacji. Autorzy proponują własną metodę - procenta sumy kwadratowej - jako rozwiązania eliminującego problemy innych metod kalkulacji wagi procesu w analizie skutków biznesowych.
Źródło:
Theoretical and Applied Informatics; 2011, 23, 1; 73-82
1896-5334
Pojawia się w:
Theoretical and Applied Informatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Availability analysis of selected mining machinery
Autorzy:
Brodny, J.
Alszer, S.
Krystek, J.
Tutak, M.
Powiązania:
https://bibliotekanauki.pl/articles/230103.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
OEE model
TPM strategy
effectiveness
mining machines
Opis:
Underground extraction of coal is characterized by high variability of mining and geological conditions in which it is conducted. Despite ever more effective methods and tools, used to identify the factors influencing this process, mining machinery, used in mining underground, work in difficult and not always foreseeable conditions, which means that these machines should be very universal and reliable. Additionally, a big competition, occurring on the coal market, causes that it is necessary to take action in order to reduce the cost of its production, e.g. by increasing the efficiency of utilization machines. To meet this objective it should be pro-ceed with analysis presented in this paper. The analysis concerns to availability of utilization selected mining machinery, conducted using the model of OEE, which is a tool for quantitative estimate strategy TPM. In this article we considered the machines being part of the mechanized longwall complex and the basis of analysis was the data recording by the industrial automation system. Using this data set we evaluated the availability of studied machines and the structure of registered breaks in their work. The results should be an important source of information for maintenance staff and management of mining plants, needed to improve the economic efficiency of underground mining.
Źródło:
Archives of Control Sciences; 2017, 27, 2; 197-209
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nitrogen Availability Of Nitriding Atmosphere In Controlled Gas Nitriding Processes
Rozporządzalności azotu atmosfery azotującej w procesach regulowanego azotowania gazowego
Autorzy:
Michalski, J.
Burdyński, K.
Wach, P.
Łataś, Z.
Powiązania:
https://bibliotekanauki.pl/articles/351821.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
controlled gas nitriding
nitrogen availability
nitriding potential
ammonia dissociation rate
alloyed steels
kontrolowane azotowanie gazowe
rozporządzalność azotu
potencjał azotowy
stopień dysocjacji amoniaku
stale stopowe
Opis:
Parameters which characterize the nitriding atmosphere in the gas nitriding process of steel are: the nitriding potential KN, ammonia dissociation rate α and nitrogen availability mN2. The article discusses the possibilities of utilization of the nitriding atmosphere’s nitrogen availability in the design of gas nitriding processes of alloyed steels in atmospheres derived from raw ammonia, raw ammonia diluted with pre-dissociated ammonia, with nitrogen, as well as with both nitrogen and pre-dissociated ammonia. The nitriding processes were accomplished in four series. The parameters selected in the particular processes were: process temperature (T), time (t), value of nitriding potential (KN), corresponding to known dissociation rate of the ammonia which dissociates during the nitriding process (α). Variable parameters were: nitrogen availability (mN2), composition of the ingoing atmosphere and flow rate of the ingoing atmosphere (FIn).
Parametrami charakteryzującymi atmosferę azotującą w procesie azotowania gazowego stali są: potencjał azotowy KN, stopień dysocjacji amoniaku α oraz rozporządzalność azotu mN2. W artykule omówiono możliwości wykorzystania rozporządzalności azotu atmosfery azotującej w projektowaniu procesów azotowania gazowego stali stopowych w atmosferach azotujących uzyskanych z amoniaku, z amoniaku rozcieńczonego zdysocjowanym amoniakiem, azotem oraz azotem i zdysocjowanym amoniakiem. Procesy azotowania wykonano w czterech seriach. Parametrami ustalonymi w poszczególnych seriach była temperatura procesu (T), czas (t), wartość potencjału azotowego (KN), któremu odpowiada określona wartość stopnia dysocjacji amoniaku zdysocjowanego podczas procesu azotowania (α). Parametrami zmiennymi była rozporządzalność azotu (mN2), skład atmosfery wlotowej i natężenie przepływu atmosfery azotującej wlotowej (Fw).
Źródło:
Archives of Metallurgy and Materials; 2015, 60, 2A; 747-754
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vertical organic inputs and bio-availability of carbon in an Antarctic coastal sediment
Autorzy:
Walker, Tony R.
Powiązania:
https://bibliotekanauki.pl/articles/2052033.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
Signy Island
coastal sediments
organic deposition
available carbon
seasonality
Źródło:
Polish Polar Research; 2005, 26, 2; 91-106
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Psychophysical Approach Towards Conscious Repression of Affective Stimuli
Autorzy:
Szczepanowski, Remigiusz
Powiązania:
https://bibliotekanauki.pl/articles/419311.pdf
Data publikacji:
2011-01-01
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
świadomość
represja
model progowy
dostępność potencjalna
dostępność faktyczna
lęk
consciousness
repression
threshold model
availability
accessibility
fear
Opis:
The present paper posited a psychophysical model of conscious repression of affective stimuli. Measurement of conscious repression employed a three-state threshold model of perception. The psychophysical model of repression was empirically justified with a backward masking paradigm. Given the masking data, it was shown that it is plausible that repression of affective information can occur for 41-ms stimulation. The psychophysical model of repression suggests that there is an inhibitory effect of access consciousness on subjective experience of emotional stimuli.
Źródło:
Studia Psychologiczne (Psychological Studies); 2011, 49, 1; 73-86
0081-685X
Pojawia się w:
Studia Psychologiczne (Psychological Studies)
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of periodic maintenance for wind turbines based on stochastic degradation model
Autorzy:
Su, Hongsheng
Duan, Xuping
Wang, Dantong
Powiązania:
https://bibliotekanauki.pl/articles/1841210.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
availability
maintenance optimization
stochastic diferential equation
update process
wind turbine
Opis:
The degradation process of wind turbines is greatly affected by external factors. Wind turbine maintenance costs are high. The regular maintenance of wind turbines can easily lead to over and insufficient maintenance. To solve the above problems, a stochastic degradation model (SDE, stochastic differential equation) is proposed to simulate the change of the state of the wind turbine. First, the average degradation trend is obtained by analyzing the properties of the stochastic degradation model. Then the average degradation model is used to describe the predictive degradation model. Then analyze the change trend between the actual degradation state and the predicted state of the wind turbine. Secondly, according to the update process theory, the effect of maintenance on the state of wind turbines is comprehensively analyzed to obtain the availability. Then based on the average degradation process, the optimal maintenance period of the wind turbine is obtained. The optimal maintenance time of wind turbines is obtained by optimizing the maintenance cycle through availability constraints. Finally, an onshore wind turbine is used as an example to verification. Based on the historical fault data of wind turbines, the optimized maintenance decision is obtained by analyzing the reliability and maintenance cost of wind turbines under periodic and non-equal cycle conditions. The research results show that maintenance based on this model can effectively improve the performance of wind turbines and reduce maintenance costs.
Źródło:
Archives of Electrical Engineering; 2021, 70, 3; 585-599
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Narodowy Spis Powszechny 2002. Zalety i wady
The National Census 2002. Advantages and Disadvantages
Autorzy:
Jarosz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2137766.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
methodology
class structure
education
availability of findings
metodologia
analiza klasowo-warstwowa
wykształcenie
publikacja danych
Opis:
We draw knowledge about the society from various sources. Primary data are the most important: their dependability is the condition of credibility of the future analyses and publications. Moreover, as in case of the Polish National Census, it becomes the basis for governmental and parliamentary economic and social programs. The text underlines the benefits of the last census, its credibility as well as merits of the information it provides. It proved particularly helpful in case of a dramatic correction of the existing data regarding the scope of unemployment in Poland. Among the census' shortcomings we can find: the lack of basic data concerning the class structure of the society, economic and social diversification, educational opportunities of the children of famers, workers and intelligentsia. These are the kind of information, which are also not found in the Central Statistical Office databank.
Wiedzę o tym, jakie jest społeczeństwo, czerpiemy z różnych źródeł. Najważniejsze są dane pierwotne: ich rzetelność jest warunkiem wiarygodności późniejszych analiz i publikacji. A także, w przypadku spisu powszechnego - przesłanką rządowych i parlamentarnych programów gospodarczych czy społecznych. W tekście analizuję zalety ostatniego badania spisowego, jego rzetelność i wiarygodność, jak też merytoryczną wartość związanych z nim informacji. Zwłaszcza zaś (drastyczne ze wzglądu na okoliczności) skorygowanie dotąd obowiązujących informacji o rozmiarach bezrobocia. Do wad spisu 2002 zaliczyć natomiast należy: brak podstawowych danych o klasowo-warstwowej strukturze społeczeństwa, o zróżnicowaniach materialnych i społecznych i szansach edukacyjnych dzieci z rodzin chłopskich, robotniczych czy inteligenckich. Czyli informacji, których nie zawierają także żadne inne źródłowe dane Głównego Urzędu Statystycznego.
Źródło:
Studia Socjologiczne; 2004, 1(172); 9-17
0039-3371
Pojawia się w:
Studia Socjologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maintenance Evaluation and Optimization of a Multi-State System Based on a Dynamic Bayesian Network
Autorzy:
Dahia, Zakaria
Bellaouar, Ahmed
Dron, Jean-Paul
Powiązania:
https://bibliotekanauki.pl/articles/2023959.pdf
Data publikacji:
2021-09
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-state system
dynamic Bayesian network
reliability
availability
maintenance optimization
Opis:
Nowadays, the main challenge in maintenance is to establish a dynamic maintenance strategy to significantly track and improve the performance measures of multi-state systems in terms of production, quality, security and even the environment. This paper presents a quantitative approach based on Dynamic Bayesian Network (DBN) to model and evaluate the maintenance of multi-state system and their functional dependencies. According to transition relationships between the system states modeled by the Markov process, a DBN model is established. The objective is to evaluate the reliability and the availability of the system with taking into account the impact of maintenance strategies (perfect repair and imperfect repair). Using the proposed approach, the dynamic probabilities of system states can be determined and the subsystems contributing to system failure can also be identified. A practical application is demonstrated by a case study of a blower system. Through the result of the diagnostic inference, to improve the performances of the blower, the critical components C, F, W, and P should be given more attention. The results indicate also that the perfect repair strategy can improve significantly the performances of the blower, while the imperfect repair strategy cannot degrade the performances in comparison to the perfect repair strategy. These results show the effectiveness of this approach in the context of a predictive evaluation process and in providing the opportunity to evaluate the impact of the choices made on the future measurement of systems performances. Finally, through diagnostic analysis, intervention management and maintenance planning are managed efficiently and optimally.
Źródło:
Management and Production Engineering Review; 2021, 13, 3; 3-14
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impacts of downtimes mitigation related to face drilling rigs in mining development cycles
Autorzy:
Bermúdez, Sebastian Arenas
Otalora, Cristian Gerardo Zapata
Escobar, Jorge Martin Molina
Powiązania:
https://bibliotekanauki.pl/articles/1853905.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
górnictwo
sprzęt górniczy
przemysł węglowy
availability
utilisation
downtime
Jumbo
Opis:
Underground mining development is directly related to face drilling rig performance. Reducing operating costs and improving productivity are current and crucial topics for mining projects around the world within the development phase. Unlike past approaches, this article is based on variations of equipment availability and utilisation, and their impact on development plans success and costs decrease. To assess the influence of these parameters, daily field data were collected to identify major downtimes in normal cycles and apply adequate corrective measures to mitigate them. Additionally, this article presents the reader with a graphic illustration of the correlation between utilisation and development, including historical data. This paper was developed from October 2017 to March 2018. The result of this study seeks to identify when projects generate profits by comparing four situations with constant productivity, but variables such as the possession rate, maintenance fee, production and utilisation. Finally, it is demonstrated that success in mining projects, related to equipment, is proportional to the utilisation of the fleet, with the correct management of productivities.
Źródło:
Archives of Mining Sciences; 2021, 66, 1; 125-132
0860-7001
Pojawia się w:
Archives of Mining Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Unrelated Parallel Machines Scheduling Problem with Machine and Job Dependent Setup Times, Availability Constraints, Time Windows and Maintenance Times
Autorzy:
Agárdi, Anita
Nehéz, Károly
Powiązania:
https://bibliotekanauki.pl/articles/2023961.pdf
Data publikacji:
2021-09
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
production scheduling
parallel machine
setup time
time windows
genetic algorithm
Opis:
Unrelated Parallel Machines Scheduling Problem (U-PMSP) is a category of discrete optimization problems in which various manufacturing jobs are assigned to identical parallel machines at particular times. In this paper, a specific production scheduling task the U-PMSP with Machine and Job Dependent Setup Times, Availability Constraint, Time Windows and Maintenance Times is introduced. Machines with different capacity limits and maintenance times are available to perform the tasks. After that our problem, the U-PMSP with Machine and Job Dependent Setup Times, Availability Constraints, Time Windows and Maintenance Times is detailed. After that, the applied optimization algorithm and their operators are introduced. The proposed algorithm is the genetic algorithm (GA), and proposed operators are the order crossover, partially matched crossover, cycle crossover and the 2-opt as a mutation operator. Then we prove the efficiency of our algorithm with test results. We also prove the efficiency of the algorithm on our own data set and benchmark data set. The authors conclude that this GA is effective for solving high complexity parallel machine problems.
Źródło:
Management and Production Engineering Review; 2021, 13, 3; 15-24
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł

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