Publications

• Article dans une revue

Flat Almost Complex Surfaces in the Homogeneous Nearly Kähler S3×S3

Bart Dioos, Haizhong Li, Hui Ma, Luc Vrancken

By employing a nice adapted frame we prove a Bonnet-type existence and uniqueness theorem for almost complex surfaces in the homogeneous nearly Kähler manifold S3×S3. The proof uses a local correspondence between almost complex surfaces in S3×S3 and surfaces in R3 that satisfy the Wente H-surface…

Results in mathematics = Resultate der Mathematik, 2018, 73 (1), 24 pp. ⟨10.1007/s00025-018-0784-y⟩. ⟨hal-03148536⟩

• Communication dans un congrès

Flat almost complex surfaces in the nearly Kähler S3 × S3

Luc Vrancken

In this talk we show how to study almost complex submanifolds of S3 × S3. Compact 6-dimensional non-K¨ahler nearly K¨ahler manifolds do not admit 4-dimensional almost complex submanifolds, so the almost complex submanifolds are surfaces. Previously, a classification of the totally geodesic almost…

XVIII Geometrical Seminar, May 2013, Vrnjacka Bana, Serbia. 24 pp. ⟨hal-03155854⟩

• Communication dans un congrès

Development of a dual temporal-spatial chirp method for the generation of broadband surface acoustic waves

Marc Duquennoy, Dame Fall, Mohammadi Ouaftouh, Farouk Benmeddour, Salah-Eddine Hebaz, Nikolay Smagin, Bogdan Piwakowski, Frédéric Jenot

This study deals with the optimization of transducers for Rayleigh-type Surface Acoustic Waves (SAW) generation. These transducers are based on Interdigital Transducers (IDT) and are specifically developed to characterize properties of thin layers, coatings, and functional surfaces. In order to…

175th Meeting of the Acoustical Society of America, May 2018, Minneapolis, MN, United States. ⟨10.1121/1.5036050⟩. ⟨hal-03595633⟩

• Article dans une revue

TRANSPORTS ROUTIERS COLLECTIFS DE PERSONNES. – Réglementations administrative, commerciale, européenne

Laurent Siguoirt

JurisClasseur Transport [Encyclopédie juridique Juris-classeur], 2018, 715. ⟨hal-03125517⟩

• Article dans une revue

Gait‐based human age classification using a silhouette model

Nabila Mansouri, Mohammed Aouled Issa, Yousra Ben Jemaa

Age estimation at a distance has potential applications including visual surveillance and monitoring in public places. Far from the camera, image resolution is significantly degraded. In fact, age estimation using classical methods such as face is not reliable. Given that gait is very sensitive to…

IET Biometrics, 2018, 7 (2), pp.116-124. ⟨10.1049/iet-bmt.2016.0176⟩. ⟨hal-03465155⟩

• Communication dans un congrès

Flat almost complex surfaces in the nearly Kähler S3 × S3

Luc Vrancken

In this talk we show how to study almost complex submanifolds of S3 × S3. Compact 6-dimensional non-K¨ahler nearly K¨ahler manifolds do not admit 4-dimensional almost complex submanifolds, so the almost complex submanifolds are surfaces. Previously, a classification of the totally geodesic almost…

Kobe-Leuven workshop on Geometry and Integrable systems, Jul 2014, Leuven, Belgium. 24 pp. ⟨hal-03155888⟩

• Communication dans un congrès

Computation of dispersion curves of guided waves using discontinuous Galerkin finite element method: Application to functionally graded materials

Salah-Eddine Hebaz, Farouk Benmeddour, Emmanuel Moulin, Jamal Assaad, Marc Duquennoy, Mohammadi Ouaftouh

The study of dispersive behavior of guided waves is of great interest in non-destructive testing and development of inspection systems. In this work, a semi-analytical numerical formulation for the computation of dispersion curves and mode shapes in plate-like structures is presented. The…

175th Meeting of the Acoustical Society of America, May 2018, Minneapolis, MN, United States. pp.1741-1741, ⟨10.1121/1.5035681⟩. ⟨hal-03595566⟩

• Article dans une revue

Eigen frequencies and directivity patterns of a spherical acoustic transducer

Daher Diab, Fabrice Lefebvre, Georges Nassar, Nikolay Smagin, Adnan Naja, Fawaz El Omar

In this work, a spherical acoustic sensor has been developed, and is composed of two Plexiglas half-spheres and a PZ26 piezoelectric ring that can be either used as an exciter or as a sensor. The resonance of the spherical shell is studied analytically, numerically by finite elements modeling in…

International journal of digital information and wireless communications (IJDIWC), 2018, 8 (1), pp.47-51. ⟨10.17781/P002404⟩. ⟨hal-03559602⟩

• Article dans une revue

Designing a camera placement assistance system for human motion capture based on a guided genetic algorithm

Azeddine Aissaoui, Abdelkrim Ouafi, Philippe Pudlo, Christophe Gillet, Zine-Eddine Baarir, Abdelmalik Taleb-Ahmed

In multi-camera motion capture systems, determining the optimal camera configuration (camera positions and orientations) is still an unresolved problem. At present, configurations are primarily guided by a human operator’s intuition, which requires expertise and experience, especially with complex…

Virtual Reality, 2018, 22 (1), pp.13-23. ⟨10.1007/s10055-017-0310-7⟩. ⟨hal-03426904⟩

• Article dans une revue

On Convective Heat Transfer and Flow Dynamics Through a Straight T-Bifurcating Channel

Abdelhak Lakehal, Nora Nait Bouda, Julien Pellé, Souad Harmand

Both experimental and numerical studies of a turbulent flow in a bifurcating channel are performed to characterize the dynamical behavior of the flow and its impact on the convective heat transfer on the sides of the branch. This configuration corresponds to the radial vents placed in the stator…

Journal of Heat Transfer, 2018, 140 (3), ⟨10.1115/1.4037208⟩. ⟨hal-03449905⟩