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Ce travail de fin d’études s’inscrit dans l’accompagnement d’une entreprise belge dans son processus de digitalisation et évalue plus particulièrement les impacts de la mise en place d’un processus de gestion des approvisionnements. La digitalisation d’une entreprise est l’application des technologies numériques dans ses activités. Ce travail de recherche apporte une application pratique des revues de littérature de gestion des approvisionnements à une entreprise de petite taille. Cet exercice est d’autant plus intéressant qu’il permet d’appliquer ces concepts à un secteur d’activité qualifié de niche. L’état d’avancement technologique au sein de la société a été dressé ainsi qu’une étude de la maturité numérique a été menée dans le but de la situer au regard des entreprises wallonnes. De même, des recherches au sujet des pratiques de gestion des stocks et des ensembles de pièces ont été menées. L’objectif de ce travail est de fournir une solution logicielle la plus ad‐hoc avec les besoins de la société et les souhaits de son gérant. Nous proposons également des recommandations et des solutions concrètes pour mener à bien les changements.
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Etude sur le potentiel du câble téléphérique pour le transport urbain de Liège. Identification des déterminants et des obstacles à son introduction (basé sur des interviews d'experts du domaine) et description des déterminants que les usagers prennent en compte lors de leur choix de mode de transport (analyse basée sur une enquête).
Mobility --- Accessibility --- Urban Transport --- Sart-Tilman --- Cable cars --- Aerial tramway --- Travel Time --- Capacity --- Public Transport Network --- Sciences économiques & de gestion > Domaines particuliers de l'économie (santé, travail, transport...)
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Drug inventory management in hospital pharmacies plays a crucial role in the quality of care received by the patient. In an environment where therapies are increasingly expensive, drug stock-outs are reported and pressures are felt, rational inventory management is essential. The objective of our research is to identify the difficulties related to drug inventory management encountered by hospital pharmacists and to identify the needs of pharmacists to overcome these difficulties. Our research consists in interviewing 11 hospital pharmacists, selected among Walloon hospitals. The purpose of these interviews is to assess the current state of drug inventory management within the institution and to identify the difficulties encountered in this area. We also seek to target the needs of pharmacists to optimize this task. The main findings identify the management of drug stock-outs as the biggest challenge faced by pharmacists. Real-time stock-keeping also remains a challenge. The lack of staff on the wards and within the pharmacy itself is a difficulty in maintaining optimal stock levels. The professionals interviewed also mentioned the difficulty of managing the flow of returns of non-administered drugs, as well as controlling the expiration dates of drugs. We identify a need for more visibility, cooperation and obtaining data from outside the institution to overcome certain difficulties. We identify a necessity for the distribution of certain tasks related to inventory management. There is also a need for automation in the work of pharmacists. Better communication between the pharmacy and the floors would also seem to alleviate some of these difficulties. In the specific context of healthcare, different long-term or short-term solutions can be considered to optimize the critical task of inventory management in the drug supply chain.
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This research thesis explores the optimization of resources for sustainable growth within Morocco’s tomato industry through the application of circular economy principles. The study focuses on how resource optimization can enhance sustainability and efficiency, addressing critical challenges such as water scarcity, soil degradation, and climate change impacts. By integrating circular economy practices, the agricultural sector can transition from a linear ‘take, make, dispose’ model to a more sustainable ‘reuse, recycle, regenerate’ approach. The research involves a comprehensive literature review and empirical data collection through semi-structured interviews with stakeholders across the tomato industry value chain. Key areas of resource optimization identified include renewable energy integration, waste reduction and recycling, and innovative water management techniques. The findings aim to provide actionable strategies for transforming the tomato industry, aligning with national sustainability initiatives like the Green Morocco Plan, and ultimately contributing to a more resilient and sustainable agricultural sector in Morocco.
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In a context where sustainability has become a business imperative, the adoption of reusable containers for takeaways is proving to be a promising strategy for reducing waste and promoting a circular economy. A review of existing literature and studies reveals that reusable packaging, when used repeatedly, brings significant environmental benefits. The shift from a linear to a circular model offers multiple benefits, not only for companies but also for the environment. The circular model incorporates processes for returning, cleaning and reusing containers, thereby extending the life of materials and reducing the need for new resources. This thesis explores the social acceptance of reusable food packaging for takeaways in Wallonia, analyzing the factors influencing this acceptance as well as consumers' environmental sensitivity. Through a quantitative survey, the dissertation identifies the main barriers (such as concerns about environmental effectiveness, lack of availability, and financial costs), facilitators (such as social influence), and other determining factors (such as environmental concern, personal norms, knowledge, and sense of responsibility) that influence consumer acceptance. The results of this study provide valuable insights for decision-makers in the foodservice and packaging sectors, helping them to devise effective strategies for promoting reusable packaging, in response to growing environmental regulations and consumer expectations of sustainability.
Social acceptance --- Public opinion of the Walloon people --- Reusable takeaway food packaging --- Reusable takeaway food container --- Acceptation sociale --- Opinions des Wallons --- Emballage réutilisable pour les plats à emporter --- Sciences économiques & de gestion > Production, distribution & gestion de la chaîne logistique
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Les principaux objectifs de ce travail sont de présenter les graphes représentables par mot et les graphes τ –représentables, i.e. les graphes dont un représentant évite le motif τ de longueur au moins 3. Rappelons tout d’abord qu’un graphe est représentable par mot s’il existe un mot tel que deux lettres s’alternent dans ce mot si et seulement si les sommets correspondants sont adjacents. On dit que deux lettres x et y s’alternent dans un mot si, lorsqu’on a supprimé du mot les symboles distincts de x et y, il n’apparait aucun facteur xx ou yy. Nous montrons qu’un graphe est représentable par mot si et seulement si il existe un naturel k tel qu’un mot k-uniforme représente ce graphe. De plus, nous établissons que ce représentant est 2-uniforme si et seulement si le graphe considéré est un graphe circulaire et nous construisons des graphes non-représentables. Nous prouvons que, lorsqu’il est restreint aux graphes représentables, le problème de la clique maximale, connu pour être NP-complet, est résoluble en un temps polynomial. Enfin, nous introduisons la notion de graphes τ -représentables et nous nous attardons sur les graphes µ-représentables, où µ est une permutation de S_3. Nous établissons que de tels graphes sont nécessairement des graphes circulaires et nous démontrons que la réciproque est fausse, c’est-à-dire qu’il existe des graphes circulaires qui ne sont pas µ-représentables. The main objectives of this work are to present word-representable graphs and τ –representable graphs, i.e. graphs where a representative avoids the τ pattern of length at least 3. First of all, let us remember that a graph is word-representable if there is a word such that two letters alternate in this word if and only if the corresponding vertices are adjacent. It is said that two letters x and y alternate in a word if, after removing the separate symbols of x and y from the word, no factor xx or yy appears. We show that a graph is word-representable if and only if there is a natural k such that a k-uniform word represents this graph. In addition, we establish that this representative is 2-uniform if and only if the considered graph is a circle graph and we construct non-word-representable graphs. We prove that, when restricted to word-representable graphs, the problem of maximum clique, known as NP-complete, is resolvable in a polynomial time. Finally, we introduce the notion of τ –representable graphs and we focus on µ-representable graphs, where µ is a permutation of S_3. We establish that such graphs are necessarily circle graphs and we show that the reciprocal is false, i.e. that there exist circle graphs that are not µ-representable.
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