Publications
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Mathematical model for dynamic suppliers’ selection strategy in multi-period supply planning with lead-times uncertainty
In the supply planning, the management of uncertainties is the most difficult task but becomes increasingly important in the constantly changing business environment. In literature, most paper examine the uncertainty demand under the assumption of the constant order lead-times. However, lead-time is rarely constant in real time because of unpredictable events in the supply system […]
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THE SHORT AND LONG RUN CAUSALITY RELATIONSHIP BETWEEN PUBLIC HEALTH SPENDING AND ECONOMIC GROWTH: EVIDENCE FROM TUNISIA AND MOROCCO
This study aims to analyze the short run and long run relationship link between economic growth and public health spending in Tunisia and Morocco cover the 1980-2017 periods. The basic analysis process involves four steps: stationarity test, Bound tests for Cointegration, ARDL approach inspired by Pesaran et al. (2001), and VECM method. The results confirm […]
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Timoshenko beam under Winkler foundation
We are interested in buckling for Timoshenko beam supported along its length by an elastic wall (Winkler foundation) and subjected to a longitudinal force. We use analytical methods to determine buckling load and mode shape rather than numerical methods. Haringx and Engesser models are compared. We show that the rigidity of the wall solely gouverns […]
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Les OpanLabs : un état de l’art
Pour une entreprise, développer sa capacité d’innovation est l’occasion de générer des avantages compétitifs. La façon d’aborder l’innovation a évolué au fil du temps en mettant aujourd’hui l’accent sur le travail collaboratifet l’intégration des nouvelles technologies dans le processus d’innovation. Divers dispositifs (FabLabs, Living-Labs, Hackerspaces, Makerspaces, TechShop…) voient le jour au travers des réseaux ou […]
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Outils collaboratifs : impact d’un système cobotique sur l’aide au montage pour des postes manuels industriels
La collaboration humain-machine est plus que d’actualité aujourd’hui, particulièrement dans les perspectives d’évolution de l’industrie 4.0. Au sein de la plateforme usine du futur de CESI, nous travaillons sur le développement d’outils propices à la collaboration humain-machine. Dans le but de définir comment l’utilisation d’un bras collaboratif impacte la durée et la qualité d’une tâche, […]
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TRIZ for Additive Manufacturing: Inventive problem-solving through intermediate object.
With the growing popularity of additive manufacturing (AM), designers now need relevant design methodologies to take full advantage of this technology [1]. TRIZ is composed of problemsolving tools designed to bring innovative and creative solutions and this paper focus on Design for additive manufacturing (DFAM) assisted by this one. The TRIZ matrix provides designers with […]
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Créativité par la fabrication additive: Structuration d’une méthodologie fondée sur TRIZ
L’industrie a réalisé rapidement l’importance de l’apport de la créativité dans la conception de produit. Le contexte industriel requiert des méthodes robustes et efficaces et des outils pour accéder aux sources d’idées non exploitées. Par ailleurs, la Fabrication Additive (FA) offre un large potentiel de créativité dans la conception et le design de produit. Ce […]
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Complémentarité des outils de saisie de texte en environnement virtuel immersif
Cette étude présente un test utilisateur afin de déterminer quels sont les avantages et inconvénients de différents modes de saisie de texte en environnement virtuel immersif : la reconnaissance vocale individuelle, la reconnaissance vocale collective et le clavier virtuel surnommé Drum-Like Keyboard. Nous avons mesuré l’expérience utilisateur des participants notamment selon l’utilisabilité et l’utilité afin […]
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Analysis of HD-sEMG Signals Using Channel Clustering Based on Time Domain Features For Functional Assessment with Ageing
Objective: With aging, there are various changes in the autonomic nervous system and a simultaneous decline in the motor functional abilities of the human body. This study falls within the framework improvement of the clinical tools dedicated to the robust evaluation of motor function efficiency with aging. Method: Analysis of HD-sEMG signals recorded from 32 […]
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Location-Aware Sleep Strategy for Energy-Delay Tradeoffs in 5G with Reinforcement Learning
In this paper, we propose a sleep strategy for energyefficient 5G Base Stations (BSs) with multiple Sleep Mode (SM) levels to bring down energy consumption. Such management of energy savings is coupled with managing the Quality of Service (QoS) resulting from waking up sleeping BSs. As a result, a tradeoff exists between energy savings and […]
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A Machine-Learning Based Approach for Data- Driven Identification of Heating Dynamics of Buildings’ Living-Spaces
— Modeling the heating dynamics of a given living-space of a real building remains a challenging engineering-science problem because of the quite large number of diverse kinds of involved parameters and their usually nonlinear interdependency. However, the need of such living-spaces’ heating dynamics modeling appears as a foremost requirement for designing adaptive controllers scheming the […]
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A Proposal for a Methodology of Technical Creativity mixing TRIZ and Additive Manufacturing
The industry has quickly realized the importance of bringing creativity into product design. The industrial context requires robust and efficient methods and tools to access untapped sources of ideas. Furthermore, Additive Manufacturing (AM) offers a large potential of creativity for product design. This potential is particularly significant at the level of Intermediate Objects. Previous works […]
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