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Affichage de 571 à 580 sur 6372

Article dans une revue

Robust Estimation for Nonlinear Continuous-Discrete Systems With Missing Outputs: Application to Automatic Train Control

Thierry-Marie Guerra, Braulio Norberto Aguiar Cota, Denis Berdjag, Bernard Demaya

This brief is about robust estimation for a sampled output system with continuous dynamics using unknown input observers (UIOs). A novel worst case estimation error bound is developed using a particular form of Gronwall inequality. The motivation is to assess the accuracy of the estimator in real-...

IEEE Transactions on Control Systems Technology, 2021, pp.1-7. ⟨10.1109/TCST.2021.3101737⟩. ⟨hal-03426303⟩

Communication dans un congrès

Transient Rayleigh-Bénard Thermal Convection With Radiation Heat Transfer in Participating Media Using the Control Volume Finite Element Method (CVFEM) and Lattice Boltzmann Method

Raoudha Chaabane, Abdelmajid Jemni, Fethi Aloui

In this paper, a gas-kinetic Bhatnagar-Gross-Krook (BGK) model is constructed for the Rayleigh-Benard thermal convection transfer in a two-dimensional cavity containing an absorbing, emitting, and scattering medium, where the flow field and temperature field are described by two coupled Lattice...

ASME 2021 Fluids Engineering Division Summer Meeting, Aug 2021, Virtual Event, France. ⟨10.1115/FEDSM2021-65629⟩. ⟨hal-03536801⟩

Communication dans un congrès

Numerical Investigating of Oscillatory Flow and Heat Transfer Through Stirling Regenerator

Houda Hachem, Ramla Gheith, Fethi Aloui

Abstract By developing our proper CFD code under Fortran, the performances of a Stirling engine are studied in unsteady laminar regime and closely linked to the properties of its regenerator. However, it is responsible about the maximum part of losses in the Stirling engine. These losses depend on...

ASME 2021 Fluids Engineering Division Summer Meeting, Aug 2021, Virtual Event, France. ⟨10.1115/FEDSM2021-65624⟩. ⟨hal-03536923⟩

Communication dans un congrès

Elementary Numerical Analysis of Wet Foam Formation and Study of Its Flow Structures and Physical Behavior

Ebrahim Shirani, Sima Nasirzade, Fethi Aloui

Abstract The purpose of this study is to analyze the flow of wet foam and to study the effect of volume fraction, velocity and surface tension and other physical parameters on the foam flow. The most numerical researches done in this area are for single-phase flows. The numerical simulation in this...

ASME 2021 Fluids Engineering Division Summer Meeting, Aug 2021, Virtual Event, France. ⟨10.1115/FEDSM2021-65627⟩. ⟨hal-03536949⟩

Communication dans un congrès

Experimental Investigations on the Effect of a Wavy Surface on Hydrodynamic Instabilities in a Taylor-Couette System

Lamia Gaied, Emna Berrich, Marc Lippert, Laurent Keirsbulck, Fethi Aloui

Abstract In this work, we propose an experimental study of the effect of surface roughness of the internal cylinder Couette-Taylor system in order to investigate the hydrodynamic instabilities of the flow. During experiments, the inner cylinder, which presents a rough surface with u cylinder...

ASME 2021 Fluids Engineering Division Summer Meeting, Aug 2021, Virtual Event, France. ⟨10.1115/FEDSM2021-65631⟩. ⟨hal-03536856⟩

Article dans une revue

Stochastic home health care routing and scheduling problem with multiple synchronized services

Mohammed Bazirha, Abdeslam Kadrani, Rachid Benmansour

The home health care (HHC) covers a wide range of health care services carried out in patients’ home in case of illness, injury or aging. Each caregiver should as far as possible adhere to the schedule set by the decision maker. However, unforeseen events would sometimes occur and delay the...

Annals of Operations Research, 2021, ⟨10.1007/s10479-021-04222-w⟩. ⟨hal-03716481⟩

Communication dans un congrès

Availability analysis of a two-component parallel system under stochastic dependence

Ziyad Bahou, Nizar Elhachemi, Issam Krimi, Abdessamad Ait El Cadi, Najiba Sbihi

Research in maintenance engineering is increasingly focusing on complex systems in which components are subject to various dependencies, such as stochastic, structural, and economic dependences. This paper proposes a mathematical approach to calculate system’s availability with stochastic...

4th European International Conference on Industrial Engineering and Operations Management, IEOM 2021, Aug 2021, Rome, Italy. pp.1644 - 1653. ⟨hal-03710662⟩

Article dans une revue

Quasi-LPV Interconnected Observer Design for Full Vehicle Dynamics Estimation With Hardware Experiments

Majda Fouka, Chouki Sentouh, Jean-Christophe Popieul

Safety systems claim an in-depth study of vehicle motion and tire-ground interaction for the design of a partially automated driving vehicle. This article addresses the quasi-linear parameter-varying Luenberger interconnected fuzzy observer to estimate both longitudinal and lateral vehicle dynamics...

IEEE/ASME Transactions on Mechatronics, 2021, 26 (4), pp.1763-1772. ⟨10.1109/TMECH.2021.3074743⟩. ⟨hal-03426182⟩

N°spécial de revue/special issue

Digital interoperability and transformation in logistics and supply chain management

Shenle Pan, Damien Trentesaux, Duncan Mcfarlane, Benoit Montreuil, Eric Ballot, George Q. Huang

This editorial introduces this Special Issue on advances in research on digital interoperability and transformation in logistics and supply chain management. Eleven high-quality and original research works from both researchers and practitioners in the area have been selected to compose this...

Computers in Industry, 129, 2021. ⟨hal-03528696⟩

Article dans une revue

SDR Implementation of a Real-Time Testbed for Spectrum Sensing Under MIMO Time-Selective Channels for Cognitive Radio Applications

Hayfa Ben Thameur, Iyad Dayoub

Spectrum sensing (SS) is one of the major advanced features of the cognitive radio (CR) technology. Although multiple SS approaches have been introduced in the literature, the spectrum sensing is still a challenging operation from the practice perspective. Therefore, in this letter, we go one step...

IEEE Sensors Letters, 2021, 5 (8), pp.1-4. ⟨10.1109/LSENS.2021.3095247⟩. ⟨hal-03382828⟩