Article
Environmental Sciences
Wei Li, Fei Chen, Liurui Deng, Yiwen Zhao
Summary: In this study, the impact of government subsidies on the decision-making of members in a remanufacturing supply chain is analyzed using a game model. The results show that government subsidy policies are beneficial for enterprises and have a positive effect on improving service levels and scope.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Management
Andre P. Calmon, Stephen C. Graves, Stef Lemmens
Summary: This study examines a dynamic assignment problem faced by a large wireless service provider, introducing a new warranty matching problem and associated policies, which are shown to significantly reduce costs and improve performance compared to the current policy. The results suggest that being farsighted in closed-loop supply chains can be more beneficial than being myopic, and effective policies balancing short-term and long-term costs can be simple and efficient.
M&SOM-MANUFACTURING & SERVICE OPERATIONS MANAGEMENT
(2021)
Review
Endocrinology & Metabolism
Viral N. Shah, Satish K. Garg
Summary: The study discusses the benefits of the HCL system in improving glycemic control and reducing hypoglycemia, highlighting the importance of standardized reporting for easy interpretation of data. It introduces the concept of an artificial pancreas (AP) Dashboard with seven components to aid providers and patients in understanding HCL data and improving glycemic outcomes.
DIABETES TECHNOLOGY & THERAPEUTICS
(2021)
Article
Medicine, General & Internal
Philipp K. Buehler, Anique Herling, Nadine Bienefeld, Stephanie Klinzing, Stephan Wegner, Pedro David Wendel Garcia, Michael Karbach, Quentin Lohmeyer, Elisabeth Schaubmayr, Reto A. Schuepbach, Daniel A. Hofmaenner
Summary: The study found that intensive care nurses mainly focus on numeric values and settings, with high interest in areas related to traditional mechanical ventilation. Experienced nurses pay more attention to oxygenation Intellivent and ventilation Intellivent, indicating greater familiarity with closed-loop modes in this group.
FRONTIERS IN MEDICINE
(2021)
Article
Engineering, Industrial
Zoe Krug, Romain Guillaume, Olga Battaia
Summary: Implementing reverse supply chains (RSC) can bring benefits such as reducing pollution and creating new jobs, but it also comes with risks and unpredictable outcomes. This paper presents a model to help managers evaluate risks and opportunities, while maximizing total network profit when managing the reverse flow of end-of-life products in an existing supply chain. The decision-making process incorporates uncertainty and criteria to select the final solution.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Amirhossein Salehi-Amiri, Ali Zahedi, Navid Akbapour, Mostafa Hajiaghaei-Keshteli
Summary: Logistics is crucial in the supply chain network, and Closed-loop Supply Chain (CLSC) is gaining attention. A new CLSC network is designed for the walnut industry, minimizing costs using Mixed Integer Linear Programming (MILP). The study shows excellent consistency between the network design, algorithms, and its applicability.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Computer Science, Artificial Intelligence
Tina Allehashemi, Saman Hassanzadeh Amin, Saeed Zolfaghari
Summary: A dynamic cellphone closed-loop supply chain in the Peel Region in Ontario, Canada is studied using a Mixed-Integer Linear Programming (MILP) model. The model is extended to a multi-objective model considering CO2 emissions and the quality aspects of the supply chain. Weighted-sums and epsilon-constraint methods are used to find efficient solutions for the network.
EXPERT SYSTEMS WITH APPLICATIONS
(2022)
Article
Computer Science, Interdisciplinary Applications
Subramanian Pazhani, Abraham Mendoza, Ramkumar Nambirajan, T. T. Narendran, K. Ganesh, Elias Olivares-Benitez
Summary: This paper develops strategic decision-making models for two different Closed Loop Supply Chains (CLSCs) with multiple products over multiple periods, modeled as Integer Linear Programs (ILP) for decision-making in terms of location/allocation, transportation, and inventory. The proposed integer relaxation approach obtains optimal solutions and is illustrated with case studies and hypothetical datasets, demonstrating the utility and encouraging results of the models.
COMPUTERS & INDUSTRIAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Lily Poursoltan, Seyed-Mohammad Seyed-Hosseini, Armin Jabbarzadeh
Summary: This study introduces a green closed-loop supply chain framework for ventilators, addressing environmental sustainability and carbon emissions constraints, using a stochastic optimization model with strategic and tactical decision making. The proposed model is applied to a case study of Iranian medical ventilator production to analyze the impact of carbon emissions and demand variations on the optimal solution in the COVID-19 pandemic context. Sensitivity analyses show the managerial dimensions of the proposed model under the COVID-19 pandemic.
Article
Environmental Sciences
Maedeh Fasihi, Reza Tavakkoli-Moghaddam, Mostafa Hajiaghaei-Keshteli, S. Esmaeil Najafi
Summary: This study investigates a sustainable closed-loop supply chain (CLSC) for fish, develops a multi-objective mathematical model for optimization, and uses a combination of algorithms to solve the model. A case study with a trout CLSC in Northern Iran is conducted, and sensitivity analyses confirm the efficacy of the proposed algorithms. The findings showcase the high consistency and efficiency of the proposed network and algorithms.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Automation & Control Systems
Junichi Hongu, Daisuke Iba
Summary: To widely utilize the synchronization properties of nonlinear oscillators in the control and signal processing engineering field, a common design method for a nonlinear oscillator model would be helpful. The output response of a nonlinear oscillator excited by a periodic signal implicitly includes the information of both the instantaneous phase and the amplitude of the input signal. Explicitly expressing the dynamics of both phase and amplitude with the phase reduction method, and organizing them by the number of events in one period, could enable the design of a nonlinear oscillator model in the same manner that can synchronize with an arbitrary cyclic phenomenon in a broad sense. Assuming the cyclic phenomenon is a single periodic signal, the property of the generalized nonlinear oscillator model has the role as a common-dimensional observer to attain the pseudo-property of both iso-damping and flat-gain. Thus, this article determines the essential role of the nonlinear oscillator inserted in the closed-loop system through investigating the input-output characteristic of the generalized nonlinear oscillator model. As a result of the numerical simulation using a simple vibration excitation and suppression system, it was found that using the generalized nonlinear oscillator model enables us to easily build the closed-loop system including the pseudo-property of both iso-damping and flat-gain.
INTERNATIONAL JOURNAL OF ADAPTIVE CONTROL AND SIGNAL PROCESSING
(2022)
Article
Green & Sustainable Science & Technology
Arindam Garai, Biswajit Sarkar
Summary: This study aims to investigate the financial self-reliance of the reverse chain and proposes a closed-loop supply chain model linking herbal medicines and biofuels to address environmental concerns and improve customer satisfaction. By developing an optimized algorithm, the study seeks to achieve more desirable optimal values and emphasizes the upgrading of factory equipment and adjustments to regulations.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Operations Research & Management Science
Alessio Ishizaka, Sharfuddin Ahmed Khan, Siamak Kheybari, Syed Imran Zaman
Summary: To address the environmental effects caused by organizations, a closed-loop supply chain has been introduced as an effective tool. This research evaluates supplier performance using a hierarchy structure and the best-worst method, and analyzes the results using the geometrical analysis for interactive aid (GAIA) plane. The study finds that on-time delivery is the most important criterion.
ANNALS OF OPERATIONS RESEARCH
(2023)
Article
Computer Science, Information Systems
An-An Liu, Guokai Zhang, Ning Xu, Junbo Guo, Guoqing Jin, Xuanya Li
Summary: Researchers propose a closed-loop reasoning approach with graph-aware dense interaction to solve the semantic alignment problem in visual dialog. Utilizing the dynamic structure of the graph, this approach discovers cues and leverages them to improve dialog and image features. The reliability of graph construction is proven through the analysis of hidden linguistic entities in the dialog. Experimental results on two VisDial datasets demonstrate competitive performance of the proposed model.
MULTIMEDIA SYSTEMS
(2022)
Article
Computer Science, Artificial Intelligence
Vivek Kumar Chouhan, Shahul Hamid Khan, Mostafa Hajiaghaei-Keshteli
Summary: The sugarcane industry is faced with the challenge of handling a large amount of by-products, and this paper proposes an efficient multi-echelon Sugarcane Supply Chain Network (SSCN) to address this issue. Three hybrid metaheuristics algorithms are introduced to handle the increasing complexity of supply chain problems, with successful results in reducing overall costs and achieving significant cost reductions for decision-makers.