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Affichage de 1161 à 1170 sur 2052

Article dans une revue

An implementation of exact knapsack separation

Igor A Vasilyev, Maurizio Boccia, Said Hanafi

Cutting planes have been used with great success for solving mixed integer programs. In recent decades, many contributions have led to successive improvements in branch-and-cut methods which incorporate cutting planes in branch and bound algorithm. Using advances that have taken place over the…

Journal of Global Optimization, 2016, 66 (1), pp.127-150. ⟨10.1007/s10898-015-0294-3⟩. ⟨hal-03400563⟩

Article dans une revue

Mechanical characterization of a prototype a-C:Cr,Si and its tribological behavior at high temperature

Mariana Staia, Laurent Dubar, Mirentxu Dubar, Eli Saúl Puchi-Cabrera, Alain Iost, Patrick de Baets, André Dubois

The results of the mechanical and tribological characterization of a prototype a-C:Cr, Si sputtered coating are presented. The hardness and the elastic modulus of the coated system have been determined by means of nanoindentation taking into account the actual architecture of the bi-layer coating.…

Tribology International, 2016, 100, pp.242-254. ⟨10.1016/j.triboint.2016.01.048⟩. ⟨hal-03169356⟩

Article dans une revue

Social spiders optimization and flower pollination algorithm for multilevel image thresholding: A performance study

Salima Ouadfel, Abdelmalik Taleb-Ahmed

We present an empirical comparison of two new meta-heuristics SSO and FP.Real test images were used to perform thresholding using Otsu's method and Kapur's entropy.Compared algorithms were SSO, FP, PSO, BAT.Comparisons were made according to the fitness values, PSNR and SSIM.SSO shows…

Expert Systems with Applications, 2016, 55, pp.566-584. ⟨10.1016/j.eswa.2016.02.024⟩. ⟨hal-03426984⟩

Article dans une revue

Rolls wear characterization in hot rolling process

Camille Bataille, Emilie Luc, Maxence Bigerelle, Raphaël Deltombe, Mirentxu Dubar

This paper is based on the hot rolling process on stainless steels. The aim of this article is to characterize the wear of working cylinders during the hot rolling milling process. The behavior of working cylinders, used in a finishing hot rolling mill, is thus analyzed. Because of their large…

Tribology International, 2016, 100, pp.328-337. ⟨10.1016/j.triboint.2016.03.012⟩. ⟨hal-03448196⟩

Article dans une revue

RGB Medical Video Compression Using Geometric Wavelet and SPIHT Coding

Yassine Habchi, Mohammed Beladgham, Abdelmalik Taleb-Ahmed

The video compression is used in a wide of applications from medical domain especially in telemedicine. Compared to the classical transforms, wavelet transform has significantly better performance in horizontal, vertical and diagonal directions. Therefore, this transform introduces high…

International Journal of Electrical and Computer Engineering, 2016, 6 (4), pp.1627-1636. ⟨10.11591/ijece.v6i4.pp1627-1636⟩. ⟨hal-03426987⟩

Article dans une revue

Adaptability and Prediction of Anticipatory Muscular Activity Parameters to Different Movements in the Sitting Position

Soufien Chikh, Eric Watelain, Arnaud Faupin, Antonio Pinti, Mohamed Jarraya, Cyril Garnier

Voluntary movement often causes postural perturbation that requires an anticipatory postural adjustment to minimize perturbation and increase the efficiency and coordination during execution. This systematic review focuses specifically on the relationship between the parameters of anticipatory…

Perceptual and Motor Skills, 2016, 123 (1), pp.190-231. ⟨10.1177/0031512516656817⟩. ⟨hal-03313058⟩

Article dans une revue

Strain rate effects on the compressive response of wood and energy absorption capabilities – Part A: Experimental investigations

Jérémy Wouts, Grégory Haugou, Marc Oudjene, Daniel Coutellier, Hervé Morvan

Strain rate effect on wood material is of major interest when dealing with applications dedicated to energy absorption or wood machining. To understand and evaluate the strain rate influence on the wood responses, three experimental apparatus are used in order to cover a large range of strain rates…

Composite Structures, 2016, 149, pp.315-328. ⟨10.1016/J.compstruct.2016.03.058⟩. ⟨hal-03096703⟩

Article dans une revue

Impact of Physical Activity on Alzheimer's Disease: A Randomised Controlled Study

Toulotte Claire, Caby Isabelle, Hélène Olivier, Nicolas Olivier

To study the effects of physical training on behavior and balance issues in elderly people afflicted with Alzheimer's disease. Method: Forty patients (average age: 80 years old) participated in the study. The individuals were placed into two groups: a control group, which did not participate…

Journal of Intellectual Disability - Diagnosis and Treatment, 2016, 4 (2), pp.110-116. ⟨10.6000/2292-2598.2016.04.02.4⟩. ⟨hal-03374933⟩

Article dans une revue

A Robust Observer-Based Sensor Fault-Tolerant Control for PMSM in Electric Vehicles

Suneel Kumar Kommuri, Michael Defoort, Hamid Reza Karimi, Kalyana Chakravarthy Veluvolu

This paper investigates the problem of automatic speed tracking control of an electric vehicle (EV) that is powered by a permanent-magnet synchronous motor (PMSM). A reconfiguration scheme, based on higher order sliding mode (HOSM) observer, is proposed in the event of sensor faults/failures to…

IEEE Transactions on Industrial Electronics, 2016, 63 (12), pp.7671-7681. ⟨10.1109/TIE.2016.2590993⟩. ⟨hal-03426943⟩

Article dans une revue

Fundamental mode of freely decaying laminar swirling flows

François Beaubert, Halldor Pálsson, Sylvain Lalot, Isabelle Choquet, Hadrien Bauduin

A detailed study of a swirling flow in a tube is presented in the first part of the paper. A simplified analytical solution of the governing equations indicates specific modes of the tangential velocity and that the decay of the swirl effect is exponential. The problem is then solved in three…

Applied Mathematical Modelling, 2016, 40 (13-14), pp.6218-6233. ⟨10.1016/j.apm.2016.02.002⟩. ⟨hal-03443124⟩