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Affichage de 1421 à 1430 sur 1999

  • Article dans une revue

Analysis from robust control under environment constraint: application for traffic model

Milka Uzunova, Mohamed Djemai

Traffic management solutions are increasingly called for to address problems of transport and mobility and nowadays, even to address the environmental impact. Traffic control uses strategies to reduce bottlenecks, travel time and costs. Although it is usually assumed that an improved traffic flow…

International Journal of Business Performance and Supply Chain Modeling , 2014, 6 (3/4), pp.315-335. ⟨10.1504/IJBPSCM.2014.065273⟩. ⟨hal-02020550⟩

  • Article dans une revue

The influence of speaker gaze on listener comprehension: Contrasting visual versus intentional accounts

Maria Staudte, Matthew W. Crocker, Alexis Heloir, Michael Kipp

Previous research has shown that listeners follow speaker gaze to mentioned objects in a shared environment to ground referring expressions, both for human and robot speakers. What is less clear is whether the benefit of speaker gaze is due to the inference of referential intentions (Staudte and…

Cognition, 2014, 133 (1), pp.317-328. ⟨10.1016/j.cognition.2014.06.003⟩. ⟨hal-03578505⟩

  • Article dans une revue

Composition of Wide Bandgap Semiconductor Materials and Nanostructures Measured by Atom Probe Tomography and Its Dependence on the Surface Electric Field

Lorenzo Mancini, Nooshin Amirifar, Deodatta Shinde, Ivan Blum, Matthieu Gilbert, Angela Vella, François Vurpillot, Williams Lefebvre, Rodrigue Lardé, Etienne Talbot, Philippe Pareige, Xavier Portier, Ahmed Ziani, Christian Davesnne, Christophe Durand, Joël Eymery, Raphaël Butté, Jean-François Carlin, Nicolas Grandjean, Lorenzo Rigutti

Atom probe tomography allows for three-dimensional reconstruction of the elemental distribution in materials at the nanoscale. However, the measurement of the chemical composition of compound semiconductors may exhibit strong biases depending on the experimental parameters used. This article…

Journal of Physical Chemistry C, 2014, 118 (41), pp.24136-24151. ⟨10.1021/jp5071264⟩. ⟨hal-01163403⟩

  • Article dans une revue

Nonquadratic Lyapunov function for continuous TS fuzzy models through their discretization

Ameni Ellouze, François Delmotte, Jimmy Lauber, Mohamed Chtourou, Mohamed Ksantini

Since the beginning of the fuzzy control theory, results have been obtained independently for continuous and discrete models. It is still quite difficult to use nonquadratic Lyapunov functions for the continuous case, while this is much easier for the discrete case. This approach tries to put a…

Fuzzy Sets and Systems, 2014, 253, pp.64-81. ⟨10.1016/j.fss.2014.04.014⟩. ⟨hal-03644514⟩

  • Article dans une revue

Wetting of anisotropic sinusoidal surfaces—experimental and numerical study of directional spreading

Fisher Guillaume, Maxence Bigerelle, Krzysztof Kubiak, T.G. Mathia, Z. Khatir, Karine Anselme

Directional wettability, i.e. the variation of wetting properties, depending on the surface orientation, can be achieved by anisotropic surface texturing. A new high-precision process can produce homogeneous sinusoidal surfaces (in particular, parallel grooves) at the microscale, with a nanoscale…

Surface Topography: Metrology and Properties, 2014, 2 (4), pp.044003. ⟨10.1088/2051-672X/2/4/044003⟩. ⟨hal-03627121⟩

  • Article dans une revue

An Experimental and Numerical Study on the Effects of the Flat Heat Pipe Wick Structure on Its Thermal Performance

Hamdy Hassan, Souad Harmand

This paper presents an experimental and numerical work on the effect of flat heat pipe construction on the cooling of an electronic component. The flat heat pipe is heated via 1-cm-diameter circular electrical resistance (the evaporator side), and the other side (the condenser side) is cooled by…

Heat Transfer Engineering, 2014, 36 (3), pp.278-289. ⟨10.1080/01457632.2014.916157⟩. ⟨hal-03451849⟩

  • Article dans une revue

New MIP model for multiprocessor scheduling problem with communication delays

Abdessamad Ait El Cadi, Rabie Ben Atitallah, Said Hanafi, Nenad Mladenovic, Abdelhakim Artiba

In this paper we consider scheduling tasks on a multiprocessor system, taking into account communication delays. We propose a new Mixed Integer Program (MIP) formulation that drastically reduces both the number of variables and the number of constraints, when compared to the best mathematical…

Optimization Letters, 2014, 11 (6), pp.1091-1107. ⟨10.1007/s11590-014-0802-2⟩. ⟨hal-01104613⟩

  • Article dans une revue

Time Series Modelling and Forecasting of Emergency Department Overcrowding

Farid Kadri, Fouzi Harrou, Sondès Chaabane, Christian Tahon

Efficient management of patient flow (demand) in emergency departments (EDs) has become an urgent issue for many hospital administrations. Today, more and more attention is being paid to hospital management systems to optimally manage patient flow and to improve management strategies, efficiency…

Journal of Medical Systems, 2014, 38 (9), pp.107. ⟨10.1007/s10916-014-0107-0⟩. ⟨hal-03644578⟩

  • Article dans une revue

Roughness characterization of the galling of metals

Cédric Hubert, Julie Marteau, Raphaël Deltombe, Y Chen, Maxence Bigerelle

Several kinds of tests exist to characterize the galling of metals, such as that specified in ASTM Standard G98. While the testing procedure is accurate and robust, the analysis of the specimenʼs surfaces (${\rm area}=1.2\;{\rm cm}$) for the determination of the critical pressure of galling remains…

Surface Topography: Metrology and Properties, 2014, 2 (3), pp.034002. ⟨10.1088/2051-672X/2/3/034002⟩. ⟨hal-02968722⟩

  • Article dans une revue

Complementary tribometers for the analysis of contact phenomena in grinding

Eduardo García, José Antonio Sánchez, Damien Méresse, Iñigo Pombo, Laurent Dubar

The characterization of friction and tribological phenomena occurring in grinding requires reliable experimental input data. Up to now, existing test benches exhibit important limitations. Steep thermal gradients and elastic deformations of both machine structure, and rubbing elements are the main…

Journal of Materials Processing Technology, 2014, 214 (9), pp.1787-1797. ⟨10.1016/j.jmatprotec.2014.03.026⟩. ⟨hal-03624510⟩