Article
Mathematics
Baishakhi Ganguly, Bikash Koli Dey, Sarla Pareek, Biswajit Sarkar
Summary: This research proposes a flexible production-inventory system that produces multiple parts of a product. Defective products are immediately remanufactured after inspection. The study considers limited budget and space constraints, as well as product assembly. Non-linear equations based on different distribution functions are calculated using the Kuhn-Tucker optimization technique. Numerical examples, graphical representation, and sensitivity analysis are presented. The research focuses on electronic products that are more likely to be defective rather than perfect during production.
Article
Computer Science, Artificial Intelligence
Juan Carlos Figueroa-Garcia, Christian Alfredo Varon-Gaviria, Jose Luis Barbosa-Fontecha
Summary: This article proposes a method for generating fuzzy random variables based on alpha-cuts and uniform random numbers. It proves a form of alpha-invariance for a class of fuzzy numbers (FNs) and provides exact equations for random variable generators for some well-known singleton-core FNs. Applications to univariate/bivariate FNs, two optimization inventory models are discussed in the obtained results.
IEEE TRANSACTIONS ON FUZZY SYSTEMS
(2021)
Article
Polymer Science
Fabian Ferrano, Tizian Wachter, Miranda Fateri, Michael Schmiedt
Summary: The influence of extrusion infill angles on the mechanical properties of 3D printed test specimens were investigated in this study. Different polylactide (PLA) specimens with varying infill angles were manufactured and tested using Computed Tomography (CT) scanning and optical measuring system. The results showed significant deviation between the real geometry behavior and the model. Finite Element Method (FEM) simulations were also conducted, which predicted an increase in stiffness, ultimate tensile strength, and strain at failure due to geometric deviation. The goal of this work is to evaluate the stiffness and strength of FFF-printed components using FEM with a justifiable testing effort, considering the directional dependence and suitable strength criterion.
Article
Engineering, Industrial
Hasan Rasay, Sharareh Taghipour, Mani Sharifi
Summary: This study presents an integrated model of maintenance and statistical process control (SPC) for a production process with three states. The proposed model can monitor the quality of the process's output and perform minor repairs to restore the process to an in-control state. It is a general model that can be applied to different working conditions.
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2022)
Article
Green & Sustainable Science & Technology
Julian A. Vannucci, Martin N. Gatti, Nicolas Cardaci, Nora N. Nichio
Summary: This paper analyzes the technical and economic feasibility of industrial-scale production of solketal from glycerol. The study shows that the process is economically viable if the sale price of solketal is higher than 2,400 USD/t, even for small-scale plants. Additionally, reducing the cost of cooling water has a greater impact on profitability than prolonging the catalyst's useful life.
Article
Automation & Control Systems
Marcin Mrugalski
Summary: The first objective of this paper is to solve the practical problem of modeling and identifying the performance of a discrete event production system. Internet of Things tools are used to obtain time-driven data on the metal processing time of shot blasting machines, which are used to develop a state-space model using fuzzy logic and max-plus algebraic paradigms. The proposed strategy allows for a trade-off between overall system performance and economic and health-aware indicators. A practical proof-of-concept production system is used to illustrate the benefits of the proposed approach.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
Article
Green & Sustainable Science & Technology
Pongtorn Charoensuppanimit, Boonraksa Chaiapha, Suttichai Assabumrungrat, Bunjerd Jongsomjit
Summary: This research aims to design the conversion process of ethanol into a more valuable product, such as diethyl ether (DEE). Experimental results show that using anhydrous ethanol for DEE production is more profitable compared to using hydrous ethanol, which results in acetaldehyde formation. By implementing the right technology for acetaldehyde removal, the process using hydrous ethanol can also become profitable.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Ian Barbosa, Leticia A. Scapim, Raquel M. Cavalcante, Andre F. Young
Summary: This work applies process simulation to analyze the technical and economic bottlenecks of industrial green diesel production in the Brazilian market. The study suggests that while a standalone green diesel production process may not be economically viable, incorporating it into existing refineries can lead to significant cost reductions and potential competitiveness with conventional diesel.
Article
Agricultural Engineering
Bunushree Behera, D. Laavanya, Paramasivan Balasubramanian
Summary: This study evaluates the techno-economic feasibility of a 60-ton annual capacity Kombucha-based cellulose production facility, revealing that the process is feasible but lacks information for large-scale manufacturing. Sensitivity analysis shows that increasing fermentation units and automating the process can reduce input costs.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Chemical
Anushree Priyadarshini, Brijesh K. Tiwari, Gaurav Rajauria
Summary: The development and application of novel technologies in food processing is important for ensuring the availability of safe and convenient food with desired quality and functional properties. This study investigates the environmental and economic feasibility of ultrasound-assisted extraction (UAE) for recovering functional food ingredients from seaweed. The findings show that UAE has lower environmental impacts and good economic feasibility, supporting its adoption in functional ingredient production.
Article
Green & Sustainable Science & Technology
L. C. Moreira, P. O. Borges, R. M. Cavalcante, A. F. Young
Summary: This study aims to simulate and economically compare alternative processes for the production and treatment of biogas from vinasse, the main residue of ethanol production. The results showed that using an anaerobic lagoon and silica gel adsorption for water removal is the best process alternative for biogas treatment.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Felipe Blanco Guerra, Raquel Massad Cavalcante, Andre Ferreira Young
Summary: In order to reduce reliance on fossil fuels, biodiesel production in Brazil has increased, leading to a surplus of glycerol as a byproduct. This study aims to assess the technical and economic feasibility of converting glycerol into propylene through hydrogenolysis and subsequent polymerization into atactic homopolymer polypropylene. Computer simulations using Aspen Plus v8.8 and literature information were employed. Glycerol hydrogenolysis showed high production costs compared to other propylene production routes. The polymerization process was economically viable, but integrating it with the hydrogenolysis process resulted in polypropylene with a price disadvantage compared to the market price due to the large excess of hydrogen required for the hydrogenolysis reaction and the high costs of glycerol and effluent disposal.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Samir Ouaret
Summary: This paper formulates a model for the stochastic optimal production control problem of a manufacturing system with deteriorating items and solves the optimality conditions using time-dependent second order Hamilton-Jacobi-Bellman (HJB) equations. The model is applicable to a multi-product, single machine production system, taking into account the characteristics of machine failure and repair times.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Engineering, Chemical
Rafael G. Ferreira, Adriano R. Azzoni, Maria Helena Andrade Santana, Demetri Petrides
Summary: Hyaluronic acid is a polysaccharide with unique hydrating, rheological, and adhesive properties found in the extracellular matrix, widely used in cosmetics and medical applications. Techno-economic analysis demonstrates that production costs can be reduced through different production methods, resulting in products suitable for various applications.
Article
Robotics
Chen Li, Jing Huang, Qing Chang
Summary: Real-time production performance evaluation is crucial for diagnosing manufacturing system health and improving productivity, but studies focusing on systems with variable cycle time machines are often overlooked. With the development of smart manufacturing and increased availability of sensor data, data-driven methodologies can efficiently identify and predict real-time permanent production loss.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2021)
Article
Management
Lin Feng, Jianxiong Zhang, Wansheng Tang
INTERNATIONAL TRANSACTIONS IN OPERATIONAL RESEARCH
(2018)
Article
Management
Fuxiao Lu, Jianxiong Zhang, Wansheng Tang
INTERNATIONAL TRANSACTIONS IN OPERATIONAL RESEARCH
(2019)
Article
Operations Research & Management Science
Jing Lu, Jianxiong Zhang, Fuxiao Lu, Wansheng Tang
OPERATIONAL RESEARCH
(2020)
Article
Computer Science, Interdisciplinary Applications
Qiao Zhang, Wansheng Tang, Jianxiong Zhang
COMPUTERS & INDUSTRIAL ENGINEERING
(2018)
Article
Computer Science, Interdisciplinary Applications
Ye Wang, Wansheng Tang, Ruiqing Zhao
COMPUTERS & INDUSTRIAL ENGINEERING
(2018)
Article
Computer Science, Artificial Intelligence
Ye Wang, Wansheng Tang, Ruiqing Zhao
Article
Management
Fuxiao Lu, Wansheng Tang, Guowei Liu, Jianxiong Zhang
OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE
(2019)
Article
Management
Zhuzhu Song, Wansheng Tang, Ruiqing Zhao
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2019)
Article
Computer Science, Artificial Intelligence
Man Xu, Wansheng Tang, Chi Zhou
Article
Business
Man Xu, Wansheng Tang, Chi Zhou
ELECTRONIC COMMERCE RESEARCH AND APPLICATIONS
(2019)
Article
Computer Science, Artificial Intelligence
Man Xu, Wansheng Tang, Ruiqing Zhao
Article
Management
Qiao Zhang, Wansheng Tang, Georges Zaccour, Jianxiong Zhang
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2019)
Article
Operations Research & Management Science
Zhuzhu Song, Wansheng Tang, Ruiqing Zhao
Summary: The repositioning of empty containers from surplus to shortage areas results in economies of scope for transportation services. The liner company should focus on fewer forwarders while the forwarders should expand service scope. The order of canvassing routes with low potential market demand may not necessarily be optimal for the liner company.
ANNALS OF OPERATIONS RESEARCH
(2022)
Article
Engineering, Multidisciplinary
Shichen Zhang, Jianxiong Zhang, Jiang Shen, Wansheng Tang
JOURNAL OF INDUSTRIAL AND MANAGEMENT OPTIMIZATION
(2019)
Proceedings Paper
Computer Science, Artificial Intelligence
Ye Wang, Wansheng Tang, Ruiqing Zhao
ADVANCES IN COMPUTATIONAL INTELLIGENCE SYSTEMS
(2018)
Article
Computer Science, Interdisciplinary Applications
Xiaolin Wang, Liyi Zhan, Yong Zhang, Teng Fei, Ming-Lang Tseng
Summary: This study proposes an environmental cold chain logistics distribution center location model to reduce transportation costs and carbon emissions. It also introduces a hybrid arithmetic whale optimization algorithm to overcome the limitations of the conventional algorithm.
COMPUTERS & INDUSTRIAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Hong-yu Liu, Shou-feng Ji, Yuan-yuan Ji
Summary: This study proposes an architecture that utilizes Ethereum to investigate the production-inventory-delivery problem in Physical Internet (PI), and develops an iterative heuristic algorithm that outperforms other algorithms. However, due to gas prices and consumption, blockchain technology may not always be the optimal solution.
COMPUTERS & INDUSTRIAL ENGINEERING
(2024)
Article
Computer Science, Interdisciplinary Applications
Paraskevi Th. Zacharia, Elias K. Xidias, Andreas C. Nearchou
Summary: This article discusses the assembly line balancing problem in production lines with collaborative robots. Collaborative robots have the potential to improve automation, productivity, accuracy, and flexibility in manufacturing. The article explores the use of a problem-specific metaheuristic to solve this complex problem under uncertainty.
COMPUTERS & INDUSTRIAL ENGINEERING
(2024)
