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Affichage de 2541 à 2550 sur 5527

  • Article dans une revue

Iterative aggregation and disaggregation algorithm for pseudo-polynomial network flow models with side constraints

François Clautiaux, Said Hanafi, Rita Macedo, Marie-Emilie Voge, Cláudio Alves

This paper develops a general solution framework based on aggregation techniques to solve NP-Hard problems that can be formulated as a circulation model with specific side constraints. The size of the extended Mixed Integer Linear Programming formulation is generally pseudo-polynomial. To…

European Journal of Operational Research, 2017, 258, pp.467 - 477. ⟨10.1016/j.ejor.2016.09.051⟩. ⟨hal-01410170v2⟩

  • Article dans une revue

Passive control of deep cavity shear layer flow at subsonic speed

Mouhammad El Hassan, Laurent Keirsbulck

Passive control of the flow over a deep cavity at low subsonic velocity is considered in the present paper. The cavity length-to-depth aspect ratio is L/H = 0.2. particle image velocimetry (PIV) measurements characterized the flow over the cavity and show the influence of the control method on the…, Nous prenons ici en considération le contrôle passif d’un écoulement à faible vitesse subsonique sur une cavité. Le rapport longueur à profondeur de la cavité est L/H = 0.2. Les mesures de vélocimétrie par image de particule caractérisent l’écoulement au dessus de la cavité et montrent l’influence…

Canadian Journal of Physics, 2017, 95 (10), pp.894-899. ⟨10.1139/cjp-2016-0822⟩. ⟨hal-03451798⟩

  • Communication dans un congrès

Calculation of greenhouse gas emissions of jatropha oil and jatropha biodiesel as alternative fuels for electricity production in Côte d’Ivoire

Atta Pascal Atta, Yao N'Guessan, Céline Morin, Anne Jaecker-Voirol, Georges Descombes

The electricity in Côte d’Ivoire is mainly produced from fossil energy sources. This causes damages on environment due to greenhouse gas emissions (GHG). The aim of this paper is to calculate the greenhouse gas (GHG) emissions of jatropha oil and jatropha biodiesel as alternative fuels for…

Technologies and Materials for Renewable Energy, Environment and Sustainability TMREES16 Fall Meeting, Nov 2016, Paris, France. ⟨10.1063/1.4976287⟩. ⟨hal-01505012⟩

  • Article dans une revue

Fast binary support vector machine learning method by samples reduction

Abdelhamid Djeffal, Chaouki Babahenini, Abdelmalik Taleb-Ahmed

Support vector machine is a well-known method of statistical learning by its good accuracy; however, its training time is very poor especially in case of huge databases. Many research works aim to reduce training samples to improve training time without significant loss in accuracy. In this paper,…

International Journal of Data Mining, Modelling and Management, 2017, 9 (1), pp.1-16. ⟨10.1504/IJDMMM.2017.082555⟩. ⟨hal-03429978⟩

  • Article dans une revue

Modeling and PDC fuzzy control of planar parallel robot: A differential– algebraic equations approach

Benyamine Allouche, Antoine Dequidt, Laurent Vermeiren, Michel Dambrine

Many works in the literature have studied the kinematical and dynamical issues of parallel robots. But it is still difficult to extend the vast control strategies to parallel mechanisms due to the complexity of the model-based control. This complexity is mainly caused by the presence of multiple…

International Journal of Advanced Robotic Systems, 2017, 14 (1), pp.172988141668711. ⟨10.1177/1729881416687112⟩. ⟨hal-03429415⟩

  • Communication dans un congrès

Quantitative analysis of galling in cold forging of a commercial Al-Mg-Si alloy

Kevin Le Mercier, Mirentxu Dubar, Katia Mocellin, André Dubois, Laurent Dubar

Multiple upsetting-sliding tests are performed at sliding velocities in the range of 20-200 mm.s-1 and at different plastic deformations to reproduce the local contact conditions experienced at the tool/workpiece interface during cold forging of a 6082 aluminium alloy. An original approach, able to…

International Conference on the Technology of Plasticity, ICTP 2017, Sep 2017, Cambridge, United Kingdom. pp.2298 - 2303, ⟨10.1016/j.proeng.2017.10.998⟩. ⟨hal-01667931⟩

  • Article dans une revue

Automatic Repair of Real Bugs in Java: A Large-Scale Experiment on the Defects4J Dataset

Matias Martinez, Thomas Durieux, Romain Sommerard, Jifeng Xuan, Martin Monperrus

Defects4J is a large, peer-reviewed, structured dataset of real-world Java bugs. Each bug in Defects4J comes with a test suite and at least one failing test case that triggers the bug. In this paper, we report on an experiment to explore the effectiveness of automatic test-suite based repair on…

Empirical Software Engineering, 2017, 22 (4), pp.1936-1964. ⟨10.1007/s10664-016-9470-4⟩. ⟨hal-01387556⟩

  • Article dans une revue

Shoe drop reduction influences the lower limb biomechanics of children tennis players during an open stance forehand: A longitudinal study

Alexis Herbaut, Emilie Simoneau-Buessinger, Franck Barbier, Christophe Gillet, Maxime Roux, Nils Gueguen, Pascale Chavet

Compared to traditional tennis shoes, using 0-drop shoes was shown to induce an immediate switch from rear- to forefoot strike pattern to perform an open stance tennis forehand for 30% of children tennis players. The purpose of the study was to examine the long-term effects of a gradual reduction…

European Journal of Sport Science, 2017, 17 (10), pp.1261-1269. ⟨10.1080/17461391.2017.1368719⟩. ⟨hal-01691484⟩

  • Article dans une revue

Investigation of turbulent slot impinging jet using laser doppler anemometry method–Experimental research and error analysis

Mahmoud Charmiyan, Ahmed-Reza Azimian, Ebrahim Shirani, Fethi Aloui

In this paper, the results obtained from experimental measurements of average and turbulence quantities of a turbulent rectangular impinging jet hitting a fixed wall is reported using the laser doppler anemometry (LDA) method. The nozzle to plate distance is 10 times the nozzle width, and the tests…

Modares Mechanical Engineering, 2017, 17 (4), pp.92-100. ⟨hal-03456393⟩

  • Communication dans un congrès

Etude des instabilités d'un écoulement décollé induit par une bosse

Fawzi Fadla, Ayoub Bouanik, Laurent Keirsbulck

L'objectif de ce travail est d'améliorer notre compréhensions sur la dynamique du décollement en vue de définir les paramètres clés dans le but de concevoir un modèle simplifié et prédictif de décollement en échange du modèle classique stationnaire et bidimensionnel. Ce travail sera…

CFM 2017 - 23ème Congrès Français de Mécanique, Aug 2017, Lille, France. ⟨hal-03465303⟩