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Affichage de 901 à 910 sur 1985

Article dans une revue

Torsion delamination test, a new method to quantify the adhesion of coating: Application to car coatings

P.-E. Mazeran, Marie-Florence Arvieu, Maxence Bigerelle, Stéphane Delalande

A torsion delamination test was developed to characterize the interfacial cohesion of multilayer organic coatings. It consists in applying an increasing torque on a hexagonal plot directly glued on the coating until delamination occurs. The test is quantitative and allows the calculus of the shear…

Progress in Organic Coatings, 2017, 110, pp.134-139. ⟨10.1016/j.porgcoat.2017.03.001⟩. ⟨hal-03461622⟩

Article dans une revue

Exact analysis of signal-to-noise ratio for SAC-OCDMA system with direct detection

A. Garadi, A. Djebbari, Abdelmalik Taleb-Ahmed

In this paper, an exact signal-to-noise-ratio (SNR) analysis is carried out for spectral amplitude coding optical code division multiple access (SAC-OCDMA) system with spectral direct detection (SDD). Unlike to the early calculated SNR expression based on SAC-OCDMA with balanced detection decoder…

Optik, 2017, 145, pp.89-94. ⟨10.1016/j.ijleo.2017.07.038⟩. ⟨hal-03428675⟩

Article dans une revue

Variable neighborhood search: basics and variants

Pierre Hansen, Nenad Mladenovic, Raca Todosijević, Said Hanafi

Variable neighborhood search (VNS) is a framework for building heuristics, based upon systematic changes of neighborhoods both in a descent phase, to find a local minimum, and in a perturbation phase to escape from the corresponding valley. In this paper, we present some of VNS basic schemes as…

EURO Journal on Computational Optimization, 2017, 5 (3), pp.423-454. ⟨10.1007/s13675-016-0075-x⟩. ⟨hal-03401113⟩

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Pyramid multi-level features for facial demographic estimation

Salah Eddine Bekhouche, Abdelkrim Ouafi, Fadi Dornaika, Abdelmalik Taleb-Ahmed, Abdenour Hadid

We present a novel learning system for human demographic estimation in which the ethnicity, gender and age attributes are estimated from facial images. The proposed approach consists of the following three main stages: 1) face alignment and preprocessing; 2) constructing a Pyramid Multi-Level face…

Expert Systems with Applications, 2017, 80 (1), pp.297-310. ⟨10.1016/j.eswa.2017.03.030⟩. ⟨hal-03429231⟩

Article dans une revue

Gain-scheduled H ∞ admissibilisation of LPV discrete-time systems with LPV singular descriptor

Antonio Gonzalez Sorribes, Víctor Estrada Manzo, Thierry-Marie Guerra

This paper deals with the admissibilisation with guaranteed H∞ performance of linear parameter-varying (LPV) discrete-time singular systems under gain-scheduled (GS) state-feedback control. In particular, we focus on systems with descriptor matrix of LPV form and unknown/unmeasurable disturbance…

International Journal of Systems Science, 2017, 48 (15), pp.3215-3224. ⟨10.1080/00207721.2017.1371360⟩. ⟨hal-03429302⟩

Article dans une revue

Pollux: a dynamic hybrid control architecture for flexible job shop systems

José-Fernando Jimenez Gordillo, Abdelghani Bekrar, Gabriel Zambrano Rey, Damien Trentesaux, Paulo Leitão

Nowadays, manufacturing control systems can respond more effectively to exigent market requirements and real-time demands. Indeed, they take advantage of changing their structural and behavioural arrangements to tailor the control solution from a diverse set of feasible configurations. However, the…

International Journal of Production Research, 2017, 55 (15), pp.4229-4247. ⟨10.1080/00207543.2016.1218087⟩. ⟨hal-03429363⟩

Article dans une revue

A general variable neighborhood search for solving the uncapacitated r-allocation p-hub median problem

Raca Todosijević, Dragan Urošević, Nenad Mladenovic, Said Hanafi

The \(p\) -hub median problem consists of choosing \(p\) hub locations from a set of nodes with pairwise traffic demands in order to route the traffic between the origin-destination pairs at minimum cost. We accept general assumption that transportation between non-hub nodes is possible only via \(…

Optimization Letters, 2017, 11 (6), pp.1-13. ⟨10.1007/s11590-015-0867-6⟩. ⟨hal-03401364⟩

Article dans une revue

Mathematical programming based heuristics for the 0–1 MIP: a survey

Said Hanafi, Raca Todosijević

The 0–1 mixed integer programming problem is used for modeling many combinatorial problems, ranging from logical design to scheduling and routing as well as encompassing graph theory models for resource allocation and financial planning. This paper provides a survey of heuristics based on…

Journal of Heuristics, 2017, 23 (4), pp.165-206. ⟨10.1007/s10732-017-9336-y⟩. ⟨hal-03401722⟩

Article dans une revue

Patterns from dried water-butanol binary-based nanofluid drops

Maryam Maria Parsa, Riadh Boubaker, Souad Harmand, Khellil Sefiane, Maxence Bigerelle, Raphaël Deltombe

In this work, the behavior of evaporating binary-based nanofluid sessile droplets deposited on a smooth silicon substrate at different temperatures is explored. The formation of deposition patterns during the evaporation is studied by tracking particle clusters using optical microscopy. Similarly…

Journal of Nanoparticle Research, 2017, 19 (8), pp.3354-3367. ⟨10.1007/s11051-017-3951-2⟩. ⟨hal-01953867⟩

Article dans une revue

General Variable Neighborhood Search for computing graph separators

Jesús Sánchez-Oro, Nenad Mladenovic, Abraham Duarte

Computing graph separators in networks has a wide range of real-world applications. For instance, in telecommunication networks, a separator determines the capacity and brittleness of the network. In the field of graph algorithms, the computation of balanced small-sized separators is very useful,…

Optimization Letters, 2017, 11 (6), pp.1069-1089. ⟨10.1007/s11590-014-0793-z⟩. ⟨hal-03401153⟩