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Article dans une revue

Optimization of PZT ceramic IDT sensors for health monitoring of structures

Rafatou Takpara, Marc Duquennoy, Mohammadi Ouaftouh, Christian Courtois, Frédéric Jenot, Mohamed Rguiti

Surface acoustic waves (SAW) are particularly suited to effectively monitoring and characterizing structural surfaces (condition of the surface, coating, thin layer, micro-cracks…) as their energy is localized on the surface, within approximately one wavelength. Conventionally, in non-destructive…

Ultrasonics, 2017, 79, pp.96-104. ⟨10.1016/j.ultras.2017.04.007⟩. ⟨hal-03080493⟩

Article dans une revue

Dynamic Characterization of III-Nitride-Based High-Speed Photodiodes

Bandar Alshehri, Karim Dogheche, Sofiane Belahsene, Abderrahim Ramdane, Gilles Patriarche, Didier Decoster, El Hadj Dogheche

The objective of this study is to study, design, and develop a high-speed PIN photodiode based on In x Ga 1-x N/GaN alloys deposited by metal-organic chemical vapor deposition. The configuration used for the PIN photodiode is based on an absorbing layer composed of In 0.1 Ga 0.9 N multiple quantum…

IEEE Photonics Journal, 2017, 9 (4), pp.6803006. ⟨10.1109/JPHOT.2017.2714168⟩. ⟨hal-03552276⟩

Article dans une revue

A general variable neighborhood search variants for the travelling salesman problem with draft limits

Raca Todosijević, Anis Mjirda, Marko Mladenovic, Said Hanafi, Bernard Gendron

In this paper, we present two general variable neighborhood search (GVNS) based variants for solving the traveling salesman problem with draft limits (TSPDL), a recent extension of the traveling salesman problem. TSPDL arises in the context of maritime transportation. It consists of finding optimal…

Optimization Letters, 2017, 11 (6), pp.1047-1056. ⟨10.1007/s11590-014-0788-9⟩. ⟨hal-03666023⟩

Article dans une revue

Solving the clique partitioning problem as a maximally diverse grouping problem

Jack Brimberg, Stefana Janićijević, Nenad Mladenovic, Dragan Urošević

In this paper we show that the clique partitioning problem can be reformulated in an equivalent form as the maximally diverse grouping problem (MDGP). We then modify a skewed general variable neighborhood search (SGVNS) heuristic that was first developed to solve the MDGP. Similarly as with the…

Optimization Letters, 2017, 11 (6), pp.1-13. ⟨10.1007/s11590-015-0869-4⟩. ⟨hal-03402185⟩

Article dans une revue

Experimental study of the strain rate dependence of a synthetic gel for ballistic blunt trauma assessment

Anthony Bracq, Grégory Haugou, Rémi Delille, Franck Lauro, Sébastien Roth, Olivier Mauzac

The mechanical characterization of a polymer gel used as reference backing material for blunt ballistic impact interpretation is performed at room temperature from quasi-static (0.002 s−1) up to high strain rates (1500 s−1). As very high strain tensile tests (350%) are conducted, an appropriate…

Journal of the mechanical behavior of biomedical materials, 2017, 72, pp.138-147. ⟨10.1016/j.jmbbm.2017.04.027⟩. ⟨hal-03456414⟩

Communication dans un congrès

Particles Transport in Railway Braking Systems: An Experimental and Numerical Investigation

Charlène Octau, Marc Lippert, Anthony Graziani, Michel Watremez, Laurent Keirsbulck, Laurent Dubar, Talib Dbouk

There has been a growing public health issue concerning the regulation of indoor air quality (IAQ) and the human exposure to particulate matter (PM). Today, this exposure is a major worldwide concern because ambient PM concentrations in many cities exceeded the limits set by the European air…

ASME 2017 Fluids Engineering Division Summer Meeting, Jul 2017, Waikoloa, United States. ⟨10.1115/FEDSM2017-69126⟩. ⟨hal-03436600⟩

Communication dans un congrès

A uniform formalism for acoustic wave propagation in a mixed liquid-solid-porous viscoelastic multilayered structure

Sandrine Matta, Wei-Jiang Xu, Georges Nassar, Antoine Abche

To deepen the understanding of the ultrasonic behaviour of human multi-layered bone tissues, cortical bone for example, the reflection and transmission of ultrasonic wave at such a structure consisting of a combination of liquid-solid-porous layers was studied. A mathematical model for the plane…

13th International Conference on Theoretical and Computational Acoustics, ICTCA 2017, Jul 2017, Vienne, Austria. ⟨hal-03565835⟩

Communication dans un congrès

Fuel production from thermoplastic wastes pyrolysis

Emna Berrich, Asma Dhahak, Abdelaziz Touati, Fethi Aloui

Energetic valorization of thermoplastic wastes (High-density polyethylene (PE) and Polypropylene (PP)) to produce fuel using pyrolysis process is presented in this paper. HDPE and PP pyrolysis experiments were carried out in a lab-scale batch reactor under an inert atmosphere. Nitrogen gas was used…

ASME 2017, Jul 2017, Waikoloa, Hawaii, United States. ⟨hal-03436515⟩

Communication dans un congrès

Entropy Generation for Oscillatory Flow Inside Thermal-Lag Type Stirling Engine: Numerical Analysis

Houda Hachem, Ramla Gheith, Sassi Ben Nasrallah, Fethi Aloui

The present paper investigates the heat characteristics of oscillatory piston-driven flow inside thermal-lag type Stirling engine. The geometry consists of a cylinder partially filled with a porous metal structure called regenerator, heated at the lateral wall on one side and cooled on the other…

ASME 2017 Fluids Engineering Division Summer Meeting, Jul 2017, Waikoloa, Hawaii, United States. pp.V01AT04A001, ⟨10.1115/FEDSM2017-69010⟩. ⟨hal-03436504⟩

Communication dans un congrès

Capability Assessment of Five Different RANS-Based Turbulence Models to Simulate the Various Regions of Slot Turbulent Impingement Jet Flow

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

In this paper, impingement of a turbulent rectangular flow to a fixed wall is investigated. The jet flows from bottom-to-top and the output jet Reynolds is 16000. The nozzle-to-plate distance is equal to 10 (H/e = 10). Five turbulence models, including k-ε, RNG k-ε, k-ω SST, RSM and v2f model have…

ASME 2017 Fluids Engineering Division Summer Meeting, Jul 2017, Waikoloa, United States. ⟨10.1115/FEDSM2017-69203⟩. ⟨hal-03436532⟩