Flexible Services and Manufacturing Journal最新文献_第6页

Data-driven aggregate modeling of a semiconductor wafer fab to predict WIP levels and cycle time distributions 半导体晶圆厂的数据驱动聚合建模，以预测在制品水平和循环时间分布

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-06-16 DOI: 10.1007/s10696-023-09501-1

Patrick C. Deenen, J. Middelhuis, A. Akçay, I. Adan

引用次数: 1

Assessment of coal supply chain under carbon trade policy by extended exergy accounting method. 碳贸易政策下煤炭供应链的扩展（火用）核算方法评估。

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-06-10 DOI: 10.1007/s10696-023-09502-0

Ali Roozbeh Nia, Anjali Awasthi, Nadia Bhuiyan

{"title":"Assessment of coal supply chain under carbon trade policy by extended exergy accounting method.","authors":"Ali Roozbeh Nia, Anjali Awasthi, Nadia Bhuiyan","doi":"10.1007/s10696-023-09502-0","DOIUrl":"10.1007/s10696-023-09502-0","url":null,"abstract":"Within an uncertain environment and following carbon trade policies, this study uses the Extended Exergy Accounting (EEA) method for coal supply chains (SCs) in eight of the world's most significant coal consuming countries. The purpose is to improve the sustainability of coal SCs in terms of Joules rather than money while considering economic, environmental, and social aspects. This model is a multi-product economic production quantity (EPQ) with a single-vendor multi-buyer with shortage as a backorder. Within the SC, there are some real constraints, such as inventory turnover ratio, waste disposal to the environment, carbon dioxide emissions, and available budgets for customers. For optimization purposes, three recent metaheuristic algorithms, including Ant Lion Optimizer, Lion Optimization Algorithm, and Whale Optimization Algorithm, are suggested to determine a near-optimum solution to an \"exergy fuzzy nonlinear integer-programming (EFNIP).\" Moreover, an exact method (GAMS) is employed to validate the results of the suggested algorithms. Additionally, sensitivity analyses with different percentages of exergy parameters, such as capital, labor, and environmental remediation, are done to gain a deeper understanding of sustainability improvement in coal SCs. The results showed that sustainable coal SC in the USA has the lowest fuzzy total exergy, while Poland and China have the highest.","PeriodicalId":50441,"journal":{"name":"Flexible Services and Manufacturing Journal","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10257387/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10076480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A digital twin-driven flexible scheduling method in a human-machine collaborative workshop based on hierarchical reinforcement learning. 一种基于层次强化学习的数字孪生驱动的人机协同车间柔性调度方法。

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-05-17 DOI: 10.1007/s10696-023-09498-7

Rong Zhang, Jianhao Lv, Jinsong Bao, Yu Zheng

{"title":"A digital twin-driven flexible scheduling method in a human-machine collaborative workshop based on hierarchical reinforcement learning.","authors":"Rong Zhang, Jianhao Lv, Jinsong Bao, Yu Zheng","doi":"10.1007/s10696-023-09498-7","DOIUrl":"10.1007/s10696-023-09498-7","url":null,"abstract":"Under the influence of the global COVID-19 pandemic, the demand for medical equipment and epidemic prevention materials has increased significantly, but the existing production lines are not flexible and efficient enough to dynamically adapt to market demand. The human-machine collaboration system combines the advantages of humans and machines, and provides feasibility for implementing different manufacturing tasks. With dynamic adjustment of robots and operators in the production line, the flexibility of the human-machine collaborative production line can be further improved. Therefore, a parallel production line is set up as a parallel community, and the digital twin community model of the intelligent workshop is constructed. The fusion and interaction between the production communities enhance the production flexibility of the manufacturing shop. Aiming at the overall production efficiency and load balancing state, a digital twin-driven intra-community process optimization algorithm based on hierarchical reinforcement learning is proposed, and as a key framework to improve the production performance of production communities, which is used to optimize the proportion of human and machine involvement in work. Finally, taking the assembly process of ventilators as an example, it is proved that the intelligent scheduling strategy proposed in this paper shows stronger adjustment ability in response to dynamic demand as well as production line changes.","PeriodicalId":50441,"journal":{"name":"Flexible Services and Manufacturing Journal","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10189229/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9692317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Efficiency in radiology departments: a two-stage analysis 放射科的效率:两阶段分析

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-05-08 DOI: 10.1007/s10696-023-09499-6

Filippo Visintin, D. Aloini, Simone Gitto, Sara Vannelli, D. di Feo

引用次数: 0

Assigning orders and pods to picking stations in a multi-level robotic mobile fulfillment system 在多级机器人移动履行系统中将订单和吊舱分配到分拣站

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-05-06 DOI: 10.1007/s10696-023-09491-0

Giorgi Tadumadze, Julia Wenzel, Simon Emde, Felix Weidinger, R. Elbert

引用次数: 1

Modelling forgetting due to intermittent production in mixed-model line scheduling 混合模型生产线调度中间歇生产造成的建模遗忘

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-05-04 DOI: 10.1007/s10696-023-09500-2

F. Ostermeier, J. Deuse

引用次数: 0

Train maintenance personnel shift scheduling: case study. 列车维修人员排班：案例研究。

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-04-28 DOI: 10.1007/s10696-023-09495-w

Muhammed Abdullah Gençer, Tamer Eren, Hacı Mehmet Alakaş

{"title":"Train maintenance personnel shift scheduling: case study.","authors":"Muhammed Abdullah Gençer, Tamer Eren, Hacı Mehmet Alakaş","doi":"10.1007/s10696-023-09495-w","DOIUrl":"10.1007/s10696-023-09495-w","url":null,"abstract":"In this study, the shift scheduling problem of the personnel who maintain the 324 trains operating on the lines of the Ankara Metro, which carry approximately 10 million passengers per month, is discussed. In the problem, daily personnel needs and personnel qualifications are evaluated together according to the fault prediction. Firstly, a total of 1721 fault data for 181 days is analyzed, and the prediction is made according to 8 prediction methods. Then, a 30-day fault prediction is made with the prediction method, which has the least error rate. According to the number of faults obtained as a result of the prediction, the daily personnel requirement is determined. Then, according to the type of fault, the personnel are classified as electronics, electromechanics, and mechanics. It is aimed at distributing the personnel evenly to the shifts. The goal programming model is used to solve the problem, allowing us to add more than one goal to the model. When the solution results of the problem are compared with the current schedule, it is seen that the monthly total working hours are distributed equally, and the shifts are distributed fairly, and a necessary balance is achieved in the shifts according to the personnel qualifications. It is thought that this study, in which personnel qualifications and fault prediction are evaluated together, will contribute to the literature on railway maintenance personnel scheduling.","PeriodicalId":50441,"journal":{"name":"Flexible Services and Manufacturing Journal","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10147372/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9692316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine-based identification system via optical character recognition 基于光学字符识别的机器识别系统

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-04-25 DOI: 10.1007/s10696-023-09497-8

Mohammad Shahin, F. F. Chen, Aliakbar Hosseinzadeh

引用次数: 2

A reinforcement learning/ad-hoc planning and scheduling mechanism for flexible and sustainable manufacturing systems 一种针对柔性和可持续制造系统的强化学习/临时计划和调度机制

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-04-20 DOI: 10.1007/s10696-023-09496-9

Panagiotis D. Paraschos, G. Koulinas, D. Koulouriotis

引用次数: 1

Robotic stochastic assembly line balancing 机器人随机装配线平衡

IF 2.7 3区工程技术

Flexible Services and Manufacturing Journal Pub Date : 2023-04-12 DOI: 10.1007/s10696-023-09494-x

Muhammet Ceyhan Şahin, Mustafa Kemal Tural

引用次数: 3