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Optimizing Asia–Europe container network: The Suez Canal and Cape of Good Hope routes in a changing world
No full textInternational audienceThe aim of this paper is to develop an approach for evaluating various maritime transportation routes in light of ongoing disruptions and evolving global factors, including changes in demand, fluctuations in fuel prices, geopolitical shifts, and environmental considerations. For each alternative route, a profit maximization liner shipping problem with speed optimization is solved. Both edge-based speed optimization and maximum transit time of commodities are considered. We have proposed a mathematical programming formulation followed by an efficient hybrid approach for the optimization problem. The hybrid approach utilizes a population-based heuristic to optimize the route and an exact algorithm to optimize commodities and speed. A thorough analysis is made on the costs associated with the different alternative routes. Although the approach can be applied to different regions of the world and under the variation of several factors, we focus on the Asia-Europe trade route and on the evolution of the market demand. The comparison is made between a route going through Suez Canal and the alternative route of going through the Cape of Good Hope. Besides the high efficiency of the solution procedure, we have found that the Cape of Good Hope route can be economically interesting especially if there is demand in some African ports and if vessels of less than 20,000 TEU capacity are used
Société connectée, mais fragmentée : comment restaurer le sens du commun ?
No full textInternational audienceÀ l’heure où Elon Musk privatise l’espace public numérique en imposant ses propres règles sur X, créant une confusion majeure entre liberté et impunité, la question du commun et celle de « faire société » deviennent plus aiguës que jamais. Le commun, que nous entendons ici comme la capacité de s’entendre sur des règles de vie collective, est à la base de tout projet démocratique. Mais il n’est pas un acquis, il ne se décrète pas : il s’organise de manière sensible
Ecological Money and Finance. Insight from Post-Keynesian Economics.
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Emergency medical supplies scheduling during public health emergencies: algorithm design based on AI techniques.
No full textInternational audienceFull Article Figures & data References Citations Metrics Reprints & Permissions Read this articleABSTRACTDrawing on the marketing aspects of customer satisfaction, this paper provides insights into the relationship between students’ and lecturers’ satisfaction in a higher education institution. The study critically adopts the logic of relationship marketing, arguing that students’ satisfaction affects lecturers’ job satisfaction. The relationship between students’ and lecturers’ satisfaction is explored using Balance Theory and Herzberg’s Motivation Theory. The Critical Incident Technique is used for data collection through interviews with student-lecturer dyads. The findings indicate that lecturers’ job satisfaction increases when students’ holistic feedback is explicitly shared with lecturers. Hence, investing in the communication of students’ satisfaction enhances lecturers’ job satisfaction. The current work adds a critical perspective to the relationship between lecturers’ and students’ satisfaction. It highlights a reversal of the accepted logic of relationship marketing, arguing that students’ satisfaction affects lecturers’ satisfaction. The methodological contribution of this work offers a new approach to using critical incident analysis techniques in dyads of students and lecturers
Cyber-Physical Systems: A Bibliometric Analysis of Literature
No full textInternational audienceRecently, there is a significant growth in the use of the Cyber-Physical System (CPS). New technologies such as Internetof Things (IoT), Industry 4.0, and Analytics have become enablers of CPS implementation. Study of the development andapplication of CPS in the supply chain context is valuable to operations management and information systems research andpractice; especially, a focus on IoT-enabled CPS in production/manufacturing is highly relevant. Knowledge about the researchtrends of the development and use of CPS for supply chain management supported by new innovations in IT is very limitedin the extant literature. The aim of this research is to investigate the research trends of applying CPS in manufacturing. Thestudy encompasses a scientometric analysis of research on deploying the CPS in production systems. Based on a systematicselection process, we collect a total of 245 articles from the Web of Science (WoS) database as the sample for analysis.Using appropriate software, we conduct bibliometric analyses of the sample articles that include citation, cocitation analysis,centrality co-occurrence analysis, and co-authorship analysis. From the bibliometric analysis, we discover major themes ofCPS in manufacturing and their evolutions in the extant literature
From perfume to spirits: Exaptation of a bundle of local resources by an outsider entrepreneur
No full textInternational audienceExaptation is fundamental to understanding the emergence of novelty in economic systems. Existing research has primarily focused on 'product-first/new market' exaptation of a single resource, largely overlooking 'problemfirst' contexts, particularly where exaptation involves a bundle of resources. Through an exploratory qualitative case study of Comte de Grasse, a distillery start-up founded by an outsider entrepreneur in the perfume cluster of Grasse, South of France, this paper explores the intricate interplay between entrepreneurial decisions and actions that lead to the exaptation of a bundle of resources, resulting in the creation of a new business within an existing regional cluster. Our findings highlight analogical search as a key mechanism that enables entrepreneurs to address identified market needs by repurposing local resources rather than developing new ones. The insights from our research enrich the prevailing theory on exaptation by further highlighting its agentic nature and demonstrating that it can involve more than a single resource.</div
New trends in line balancing and model sequencing in assembly, disassembly and manufacturing environments
No full textInternational audienceThe Assembly Line Balancing Problem (ALBP), first formally introduced by Salveson in 1955, has long been a foundational topic in operations research and production management. Over the past seven decades, ALBP has evolved significantly—from a straightforward task-to-station assignment problem to a complex, multi-objective optimization challenge that reflects the intricacies of contemporary manufacturing systems. This transformation has been especially pronounced in the last two decades, driven by the integration of Industry 4.0 technologies, increasing emphasis on sustainability, and the emerging human-centered paradigms associated with Industry 5.0. In this article, we review recent advancements and integrate contributions selected for this Special Issue, which builds on papers presented at the IFIP APMS 2021 and IFAC MIM 2022 conferences. With 37 papers selected from over 90 submissions, this Special Issue represents the first dedicated collection on ALBP since the 2006 special issue in the European Journal of Operational Research (EJOR), and it reflects the field’s remarkable progression during a period of profound transformation in manufacturing
Mutualisation des capacités résiduelles de livraison de colis dans la logistique urbaine
No full textInternational audienceThe exponential growth of e-commerce has imposed new demand patterns on parcel logistics and delivery systems, particularly in urban environments. This challenges capacity planning for parcel delivery companies, often leading to overcapacity sizing of resources to meet this demand throughout the year. While the parcel delivery industry faces fluctuations in demand and underutilized capacity, dynamic resource allocation emerges as a potential solution for operational efficiency. This paper addresses this challenge across a network of regional hubs to meet fluctuating demand in parcel logistics. Through a sequential stochastic optimization algorithm, we aim to assess residual capacity in the network and optimize its usage to reduce operational costs, thereby improving the economic performance of delivery operations. Our approach incorporates adaptive decision-making at each decision period, leveraging insights from previous demand patterns and resource deployment effectiveness. First, numerical experiments demonstrate the benefits of our dynamic resource allocation strategy in using the residual capacity to minimize costs and enhance service responsiveness.La croissance exponentielle du commerce électronique a imposé de nouveaux modèles de demande aux systèmes de logistique et de livraison de colis, en particulier dans les environnements urbains. Cela pose un défi en matière de planification des capacités pour les entreprises de livraison de colis, qui se retrouvent souvent avec des ressources surdimensionnées pour répondre à cette demande tout au long de l'année. Alors que le secteur de la livraison de colis est confronté à des fluctuations de la demande et à une sous-utilisation des capacités, l'allocation dynamique des ressources apparaît comme une solution potentielle pour améliorer l'efficacité opérationnelle. Cet article aborde ce défi à travers un réseau de hubs régionaux afin de répondre à la demande fluctuante dans le domaine de la logistique des colis. Grâce à un algorithme d'optimisation stochastique séquentielle, nous visons à évaluer la capacité résiduelle du réseau et à optimiser son utilisation afin de réduire les coûts opérationnels, améliorant ainsi la performance économique des opérations de livraison. Notre approche intègre une prise de décision adaptative à chaque période de décision, en tirant parti des informations issues des modèles de demande antérieurs et de l'efficacité du déploiement des ressources. Tout d'abord, des expériences numériques démontrent les avantages de notre stratégie d'allocation dynamique des ressources dans l'utilisation de la capacité résiduelle pour minimiser les coûts et améliorer la réactivité du service
Inter-Team Cooperation: An Overlooked Imperative in South Korea’s Transition to the Technological Frontier
No full textInternational audienceThe transition for Newly Industrialized Countries to the technology frontier is critical for continued development. Now at this juncture, South Korea's performance indicates problems creating and commercialising new technology products. Various explanations exist but none is complete. We posit that the study of the inter-team dynamics of South Korean national-level project teams in public research institutes, governmental organisations and businesses provides important insights into understanding this problem. Using Social Interdependence Theory, we test for team cooperation as it is crucial for creativity and new technology innovation requisite at the technology frontier. Our findings show that team activity management at the local organisational level is perceived as positive by the teams, but they have serious concerns over the present government top-down directorial policy. This suggests the adoption of a more collaborative approach between the levels of the National System of Innovation