Publications

Affichage de 1891 à 1900 sur 5525

COMM

Experimental study of the wall surfaces 'roughness influence on the hydrodynamics' instabilities in a Couette-Taylor flow

Lamia Gaied, Emna Berrich, Maxence Bigerelle, Fethi Aloui

The Couette-Taylor flow starts with a laminar azimuthal state at low rotational speed, going to an intermediate regimeby increasing rotational speed with counter-toroidal cells (first instability or Taylor Vortex Flow). Beyond a critical value of rotational speed, various wavy modes break out first…

23èmeCongrès Français de Mécanique, Aug 2018, Lille, France. ⟨hal-02407499⟩

COMM

Gestion dynamique de flux patients pour l'évitement des situations de tensions dans un service des urgences, Dynamic patient flows management of patient to avoid strain situations in an emergency department

Sondès Chaabane, Farid Kadri, Françoise Anceaux, Christian Tahon

L'engorgement des services d'urgence est un problème connu dans différents pays. Cet engorgement est expliqué par plusieurs raisons et engendre des situations de tension dans le service. Dans cet article, nous nous intéressons à ces situations et nous allons essayer de relater notre…

9ème Conférence Francophone en Gestion et Ingénierie des Systèmes Hospitaliers (GISEH2018), Aug 2018, Genève, Suisse. ⟨hal-01867287⟩

COMM

Optimal Hybrid Vehicle Energy Management and Active Damping of the Side-Shaft Oscillations

Marcelino Sanchez Pantoja, Sebastien Delprat, Walter Lhomme, Florian Tournez

Hybrid vehicle energy management consists in determining the best powersplit of the driver torque request (given through the throttle pedal) between an internal combustion engine and one or more electric machines. This problem can be solved using optimal control techniques applied to a quasi-static…

15th IEEE Vehicle Power and Propulsion Conference, VPPC 2018, Aug 2018, Chicago, IL, United States. pp.1-5, ⟨10.1109/VPPC.2018.8605037⟩. ⟨hal-03677956⟩

COMM

Hybrid Vehicle Energy Management: Avoiding the Explicit Hamiltonian Minimization

Marcelino Sanchez Pantoja, Sebastien Delprat

Pontryagin's Minimum Principle provides an efficient framework for Hybrid Electric Vehicle (HEV) energy management. The control is obtained by minimizing the Hamiltonian at each instant. The whole optimization problem is then transformed into a Boundary Value Problem (BVP). For a few problems…

IEEE Vehicle Power and Propulsion Conference (VPPC), Aug 2018, Chicago, IL, United States. pp.1-5, ⟨10.1109/VPPC.2018.8604992⟩. ⟨hal-03409234⟩

COUV

Recovery of Farm Waste After Methanization by Evaporation on Inclined Plate

Hiba Zouaghi, Souad Harmand, Sadok Ben Jabrallah

This work addresses the recovery of a liquid effluent by thermal evaporation. It is a digestate of pig manure, rich in N, P, and K (Granier 1993; Latimier 1996; Levasseur, Composition et volume de lisier produit par le porc: Données bibliographiques. TECHNI 21(4):16–19, 1998). The effluent was…

Exergy for A Better Environment and Improved Sustainability 2, Springer International Publishing, pp.283-297, 2018, Green Energy and Technology, 978-3-319-62575-1. ⟨10.1007/978-3-319-62575-1_20⟩. ⟨hal-03449956⟩

COUV

Experimental Investigation of Polypropylene Pyrolysis for Fuel Production

Emna Berrich, Asma Dhahak, Abdel Aziz Touati, Fethi Aloui

Unlabelled - Hybrid seed production technology (SPT) is achieved through the utilization of a recessive nuclear male-sterile mutant transformed with a transgenic cassette comprising three essential components: the wild-type gene to restore the fertility of the male-sterile mutant, an α-amylase gene…

Exergy for A Better Environment and Improved Sustainability, 2, pp.461-470, 2018, ⟨10.1007/978-3-319-62575-1_33⟩. ⟨hal-02634670⟩

COUV

Variable Neighborhood Descent

Abraham Duarte, Nenad Mladenovic, Jesús Sánchez-Oro, Raca Todosijević

Local search heuristic that explores several neighborhood structures in a deterministic way is called variable neighborhood descent (VND). Its success is based on the simple fact that different neighborhood structures do not usually have the same local minimum. Thus, the local optima trap problem…

Handbook of Heuristics, Springer International Publishing, pp.341-367, 2018, 978-331907124-4. ⟨10.1007/978-3-319-07124-4_9⟩. ⟨hal-03674503⟩

COUV

Variable Neighborhood Search

Pierre Hansen, Nenad Mladenovic

Variable neighborhood search (VNS) is a metaheuristic for solving combinatorial and global optimization problems. Its basic idea is systematic change of neighborhood both within a descent phase to find a local optimum and in a perturbation phase to get out of the corresponding valley. In this…

Handbook of Heuristics, Springer International Publishing, pp.759-787, 2018, 978-331907124-4. ⟨10.1007/978-3-319-07124-4_19⟩. ⟨hal-03675345⟩

COUV

A CFD Analysis of the Air Flow Through the Stirling Engine’s Singularities

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

In this chapter, a computational fluid dynamics (CFD numerical model) of the air flow through a 300 cm3 Beta Stirling engine has been used to characterize the pressure drop and heat transfer through the regenerator. The Stirling engine had two moving parts (i.e. piston and displacer) which were at…

Exergy for A Better Environment and Improved Sustainability 1, Springer International Publishing, pp.271-287, 2018, Green Energy and Technology, 978-3-319-62572-0. ⟨10.1007/978-3-319-62572-0_19⟩. ⟨hal-03432775⟩

COUV

Experimental Analysis of Biofuel and Undistilled Biofuel from Waste Fish Fat in Diesel Engine

Nadia Mrad, Edwin Geo Varuvel, Fethi Aloui, Mohand Tazerout

Unlabelled - This study aimed to explore Cellulose synthase gene superfamily of teak, and its evolutionary relationship with homologous genes of other woody species. The incidence of evolutionary events like gene duplication and gene loss, influence of the selection pressure, and consequent…

Exergy for A Better Environment and Improved Sustainability 1, Springer International Publishing, pp.1339-1359, 2018, Green Energy and Technology, 978-3-319-62572-0. ⟨10.1007/978-3-319-62572-0_86⟩. ⟨hal-03432725⟩