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Communication dans un congrès

Cristal phononique piézomagnétique à une dimension : contrôle de la propagation par inductance variable

Marie-Fraise Ponge, Jérôme Vasseur, Olivier Bou Matar, Anne-Christine Hladky, Bertrand Dubus

Cette étude concerne un cristal phononique à une dimension constitué d'un empilement de couches piézomagnétiques identiques. Chaque couche est entourée par une bobine connectée à une inductance extérieure. Les ondes élastiques longitudinales se propageant dans cette structure sont étudiées…

CFM 2015 - 22ème Congrès Français de Mécanique, Aug 2015, Lyon, France. ⟨hal-03445058⟩

Communication dans un congrès

High Frequency Acoustic Reflectometry for Solid/Liquid Interface Characterization: Application to Droplet Evaporation

Julien Carlier, Malika Toubal, Sizhe Li, Pierre Campistron, Dorothée Debavelaere-Callens, V. Thomy, Vincent Senez, Bertrand Nongaillard

Evolution of the local concentration in a 1 mL droplet of ethanol/water mixture during an evaporation process has been followed using high frequency acoustic reflectometry. This method has been developed for wetting characterization on micro/nanostructures and makes it possible to follow…

2015 ICU International Congress on Ultrasonics, May 2015, Metz, France. ⟨10.1016/j.phpro.2015.08.285⟩. ⟨hal-03280233⟩

Article dans une revue

Sensing of liquid droplets with a scanning near-field microwave microscope

Kamel Haddadi, S. Gu, T. Lasri

We demonstrate a scanning near-field microwave microscope based on an interferometric technique for dielectric characterization in liquid media. The instrumentation combines a vector network analyzer, an interferometry-based matching network and an evanescent microwave coaxial probe. The…

Sensors and Actuators A: Physical , 2015, 230, pp.170-174. ⟨10.1016/j.sna.2015.04.028⟩. ⟨hal-03224663⟩

Article dans une revue

Design of Environmental Biosensor Based on Photonic Crystal Fiber with Bends Using Finite Element Method

Shyqyri Haxha, Ahmed Teyeb, Fathi Abdel Malek, Emmanuel Kofi Akowuah, Iyad Dayoub

In this paper, a biosensor based on photonic crystal fiber (PCF) is proposed and designed using Full-Vectorial Finite Element Method (FVFEM). The proposed PCF sensor consists of three concentric circles surrounding the core. The key optical sensor characteristics such as sensitivity, the field…

Optics and Photonics Journal, 2015, 05 (03), pp.69-78. ⟨10.4236/opj.2015.53006⟩. ⟨hal-03383011⟩

Article dans une revue

A model to predict modal radiation by finite-sized sources in composite plates with account of caustics

Mathilde Stévenin, Alain Lhémery, Sébastien Grondel

The guided wave field generated by finite size transducers in a composite plate is studied. For isotropic plates, Fraunhofer-like approximations can be found in the literature. Similar approximations fail when the plate is anisotropic. A new calculation method is proposed. Based on a modal…

Physics Procedia, 2015, 70, pp.622-625. ⟨10.1016/j.phpro.2015.08.042⟩. ⟨cea-01753218⟩

Communication dans un congrès

Experimental analysis of Zigbee RF signal performance for railway application: Study on a laboratory reduced scale train

Sara Iben Jellal, O. Cohin, S. Baranowski, Ulrich Biaou, Michael Bocquet, Atika Rivenq

Due to its cost and power performance, Zigbee is widely used and can be applied to railway systems. This paper deals with the performance of a Zigbee (IEEE.802.15.4) RF signal, according to several criteria; this analysis is based on an experimental approach and specially on power measurements in…

4th IEEE International Conference on Advanced Logistics and Transport, IEEE ICALT 2015, May 2015, Valenciennes, France. pp.287-292, ⟨10.1109/ICAdLT.2015.7136636⟩. ⟨hal-03528691⟩

Article dans une revue

A planar micro thermoelectric generator with high thermal resistance

Zheng Yuan, Katir Ziouche, Zahia Bougrioua, Pascale Lejeune, Tuami Lasri, Didier Leclercq

This paper presents the modelling, design, fabrication and characterization of a planar micro thermoelectric generator (μTEG) which is able to convert waste heat into a few microwatts of electrical power. In order to get a better performance under a large variety of heat sources even if their…

Sensors and Actuators A: Physical , 2015, 221, pp.67-76. ⟨10.1016/j.sna.2014.10.026⟩. ⟨hal-02906732⟩

Article dans une revue

Adaptation of LTE-Downlink Physical Layer to V2X and T2X communications

Bouna Fall, Smail Niar, Atika Rivenq

In the field of transport, including land, some challenges to be faced. Ensuring passenger’s safety and security, overcoming Increasing traffic during their journey and providing real time multimedia information are examples of new interesting services for the end user. Long Term Evolution…

International Journal of Innovative Technology and Exploring Engineering, 2015, 4 (10), pp.182-192. ⟨hal-03401206⟩

Communication dans un congrès

Optimal Computation of Guided Wave Propagation and Scattering in Pipeworks Comprising Elbows: Numerical and Experimental Validations and Parametric Studies

M. El Bakkali, A. Lhemery, B. Chapuis, F. Berthelot, Sébastien Grondel

Simulation tools of guided wave (GW) examination are developed at CEA to help inspection design and results interpretation. In a previous paper [M. El Bakkali, A. Lhemery, V. Baronian and F. Berthelot, (AIP Conf. Proc. 1581), pp. 332-9 (2014)], a model was developed to deal with GW propagation in…

41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Jul 2014, Boise, United States. pp.746-753, ⟨10.1063/1.4914676⟩. ⟨cea-01852429⟩

Article dans une revue

Hexamolybdenum Clusters Supported on Graphene Oxide: Visible-Light Induced Photocatalytic Reduction of Carbon Dioxide into Methanol

Pawan Kumar, Harshal P. Mungse, Stéphane Cordier, Rabah Boukherroub, Om P. Khatri, Suman L Jain

Hexamolybdenum (Mo6) cluster-based compounds namely Cs2Mo6Bri8Bra6 and (TBA)2Mo6Bri8Bra6 (TBA = tetrabutylammonium) were immobilized on graphene oxide (GO) nanosheets by taking advantage of the high lability of the apical bromide ions with oxygen-functionalities of GO nanosheets. The loading of Mo6…

Carbon, 2015, 94, pp.91-100. ⟨10.1016/j.carbon.2015.06.029⟩. ⟨hal-01166772⟩