Operational Research in Engineering Sciences: Theory and Applications最新文献_第3页

The Effects of Sustainable Governance to Sustainable Development 可持续治理对可持续发展的影响

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-08-15 DOI: 10.31181/oresta060722090g

H. Gündoğdu, A. Aytekin

引用次数: 12

Single-Digit time: Toward a Quick Change-over Process with The SMED method using The Vision System 一位数时间：使用视觉系统的SMED方法实现快速转换过程

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta190222076h

Hendi Herlambang, Zulfa Fitri Ikatrinasari, K. Kosasih

引用次数: 0

Development of a Rough-MABAC-DoE-based Metamodel for Supplier Selection in an Iron and Steel Industry 钢铁行业供应商选择的基于粗糙MABAC-DoE的元模型开发

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta190222046c

Ritwika Chattopadhyay, P. P. Das, S. Chakraborty

{"title":"Development of a Rough-MABAC-DoE-based Metamodel for Supplier Selection in an Iron and Steel Industry","authors":"Ritwika Chattopadhyay, P. P. Das, S. Chakraborty","doi":"10.31181/oresta190222046c","DOIUrl":"https://doi.org/10.31181/oresta190222046c","url":null,"abstract":"In the context of supply chain management, supplier selection can be defined as the process by which organizations score and evaluate a range of alternative suppliers to choose the best possible one who can provide superior quality of raw materials at cheaper rate and lesser lead time. It is a decision making process with multiple trade-offs between various conflicting criteria which in turn helps the organizations identify the suitable suppliers that would establish a robust supply chain assisting in maintaining a competitive edge. The main objective of supplier selection is thus focused on reducing purchase risk, maximizing overall value to the organization, and developing closeness and long-term relationships between the suppliers and the organization. In this paper, while selecting the most suitable supplier for gearboxes in an Indian iron and steel industry, assessments of three decision makers on the performance of five candidate suppliers with respect to five evaluation criteria are first aggregated using rough numbers. The definitive distances of those rough numbers are then treated as the inputs to a 25 full-factorial design plan with the corresponding multi-attributive border approximation area comparison (MABAC) scores as the output variables. Finally, a design of experiments (DoE)-based metamodel is formulated to interlink the computed MABAC scores with the considered criteria. The competing suppliers are ranked based on this rough-MABAC-DoE-based metamodel, which also easies out the computational steps when new suppliers are included in the decision making process.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46480904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 24

A New Fuzzy Grach Model to forecast Stock Market Technical Analysis 一种新的模糊图模型预测股市技术分析

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta040422196m

Saima Mustafa, Arfa Amjad Bajwa, Shafqat Iqbal

{"title":"A New Fuzzy Grach Model to forecast Stock Market Technical Analysis","authors":"Saima Mustafa, Arfa Amjad Bajwa, Shafqat Iqbal","doi":"10.31181/oresta040422196m","DOIUrl":"https://doi.org/10.31181/oresta040422196m","url":null,"abstract":"Decision making process in stock trading is a complex one. Stock market is a key factor of monetary markets and signs of economic growth. In some circumstances, traditional forecasting methods cannot contract with determining and sometimes data consist of uncertain and imprecise properties which are not handled by quantitative models. In order to achieve the main objective, accuracy and efficiency of time series forecasting, we move towards the fuzzy time series modeling. Fuzzy time series is different from other time series as it is represented in linguistics values rather than a numeric value. The Fuzzy set theory includes many types of membership functions. In this study, we will utilize the Fuzzy approach and trapezoidal membership function to develop the fuzzy generalized auto regression conditional heteroscedasticity (FGARCH) model by using the fuzzy least square techniques to forecasting stock exchange market prices. The experimental results show that the proposed forecasting system can accurately forecast stock prices. The accuracy measures RMSE, MAD, MAPE, MSE, and Theil-U-Statistics have values of 18.17, 15.65, 2.339, 301.998, and 0.003212, respectively, which confirmed that the proposed system is considered to be useful for forecasting the stock index prices, which outperforms conventional GARCH models.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46246114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Application of Wooden Modular Construction for the Needs of the Elderly 木质模块结构在满足老年人需求中的应用

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta240322121n

A. Nicał, K. Sikora

{"title":"Application of Wooden Modular Construction for the Needs of the Elderly","authors":"A. Nicał, K. Sikora","doi":"10.31181/oresta240322121n","DOIUrl":"https://doi.org/10.31181/oresta240322121n","url":null,"abstract":"In recent years, changes in demographic structure have been observed worldwide. To sustain the growing population of elderly people with special needs, homes need a radical rethink both in designing new houses and in retrofitting new solutions to existing houses. Designs that facilitate aging in place, designs that maintain thermal comfort, and designs that have net-zero energy demands and low to zero to negative carbon footprints are needed. The article discusses the issues of construction for the elderly. The trends in the demographic development of society in selected countries are presented. Additionally, information on the housing stock for elderly people in Poland is provided. The carbon dioxide emission limits to mitigate climate change make it necessary to find an alternative to concrete and steel, traditional construction materials. In this context, Cross Laminated Timber (CLT) fulfills the sustainability requirements. However, to select the suitable panel a detailed analysis of timber characteristics is required. It is necessary to evaluate mechanical properties in bending, tension, compression, and shear. Since the mechanical properties of certain types of wood differ, their proper selection is challenging. The multi-criteria analysis could address this. In this article, four wood species, spruce, oak, ash, and beech, were evaluated using the Analytic Hierarchy Process (AHP) analysis. Based on the type of construction elements and their functions, analyses were using six mechanical properties as criteria. The optimal type of wood was indicated.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45523331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Estimating Rubber Covered Conveyor Belting Cure Times Using Multiple Simultaneous Optimizations Ensemble 使用多重同时优化集合估计橡胶覆盖输送机皮带固化时间

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta180222016p

Domingo Pavolo, D. Chikobvu

{"title":"Estimating Rubber Covered Conveyor Belting Cure Times Using Multiple Simultaneous Optimizations Ensemble","authors":"Domingo Pavolo, D. Chikobvu","doi":"10.31181/oresta180222016p","DOIUrl":"https://doi.org/10.31181/oresta180222016p","url":null,"abstract":"Multiple response surface methodology (MRSM) has been the favorite method for optimizing multiple response processes though it has two weaknesses which challenge the credibility of its solutions. The first weakness is the use of experimentally generated small sample size datasets, and the second is the selection, using classical model selection criteria, of single best models for each response for use in simultaneous optimization to obtain the optimum or desired solution. Classical model selection criteria do not always agree on the best model resulting in model uncertainty. The selection of single best models for each response for simultaneous optimization loses information in rejected models. This work proposes the use of multiple simultaneous optimizations to estimate multiple solutions that are ensembled in solving a conveyor belting cure time problem. The solution is compared with one obtained by simultaneous optimization of single best models for each response. The two results were different. However, results show that it is possible to obtain a more credible solution through ensembling of solutions from multiple simultaneous optimizations.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47403131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Mathematical Modelling of Non-Permutation Flow Shop Processes with Lot Streaming in the Smart Manufacturing Era 智能制造时代具有批量流的非置换流水车间过程数学建模

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta250322166r

D. Rossit, F. Tohmé, Rodrigo Introcaso, Jeanette Rodríguez

{"title":"Mathematical Modelling of Non-Permutation Flow Shop Processes with Lot Streaming in the Smart Manufacturing Era","authors":"D. Rossit, F. Tohmé, Rodrigo Introcaso, Jeanette Rodríguez","doi":"10.31181/oresta250322166r","DOIUrl":"https://doi.org/10.31181/oresta250322166r","url":null,"abstract":"Industry 4.0 is leveraging the production capabilities of the industry. The deep digitalization that Industry 4.0 promotes enables to extend control skills to an exhaustive detail in the shop floors. Then, new planning strategies can be designed and implemented. We present mathematical models to represent non-permutation flow shop processes, incorporating Industry 4.0 features and customer-focused attention. Basically, we study the impact of lot streaming on the ensuing optimization problems, since the work-in-process inventory control is considerably enhanced by Industry 4.0 technologies. Thus, is possible to take advantage of subdividing the production lots into smaller sublots, as lot streaming proposes. To test this hypothesis we use a novel approach to non-permutation flow shop problems which requires a lot streaming strategy, incorporating total tardiness as objective function. Our analysis indicates that lot streaming improves results increasingly with the number of machines. We also find that the improvement is less steep with more sublots, increasing the computational cost of solutions. This indicates that it is highly relevant to fine tune the maximum number of sublots to avoid extra costs.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47853931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Demographic and institutional Determinants affecting Manpower’s development at the government sector 影响政府部门人力资源发展的人口和制度决定因素

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta290122001e

Mohamed A. Elkhouli

{"title":"The Demographic and institutional Determinants affecting Manpower’s development at the government sector","authors":"Mohamed A. Elkhouli","doi":"10.31181/oresta290122001e","DOIUrl":"https://doi.org/10.31181/oresta290122001e","url":null,"abstract":"This study aimed to apply the measurement of the impact of determinants of the change management process (CMP) on the competitive performance (CP) of the employees at the government sector in a practical environment by comparison between the employees’ expectation at the Government of Ras Al-Khaimah compared to the expectation of employees at Ajman Government. Thus, the Emirate of Ajman within the UAE was selected to apply the same scale of measuring which has same conditions of the work of the government sector and similar geographical aspects like the Emirate of RAK. The results have shown a significant impact of the role of direct determinants which were assumed by the current study in the influence of improving the competitiveness of the employees during the implementation to any change management process planned at the level of government sectors. There were five key determinants respectively in terms of impact strength, and those determinants were creation and innovation, institutional values, quality and excellence systems, administrative and legal aspects and finally, the role of leadership.","PeriodicalId":36055,"journal":{"name":"Operational Research in Engineering Sciences: Theory and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46473198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Criteria selection and decision making of hotels using Dominance Based Rough Set Theory 基于优势度粗糙集理论的酒店标准选择与决策

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta190222061s

H. Sharma, Aarti Singh, Dixy Yadav, S. Kar

引用次数: 12

Night Traffic Flow Prediction Using K-Nearest Neighbors Algorithm 基于K-近邻算法的夜间交通流量预测

Operational Research in Engineering Sciences: Theory and Applications Pub Date : 2022-04-20 DOI: 10.31181/oresta240322136m

D. Mladenović, S. Janković, S. Zdravković, Snezana Mladenovic, Ana Uzelac

引用次数: 3