Publications

• Article dans une revue

Multiport Reflectometer Based on Subtractive Mixing

Abdelhatif El Fellahi, Kamel Haddadi, David Glay, Tuami Lasri

A compact multiport reflectometer using a new subtractive mixing scheme for the determination of reflection coefficients in the frequency range of 1-10 GHz is proposed. Compared with classical multiport reflectometers, the architecture proposed reduces the design complexity. Comparison between…

IEEE Sensors Journal, 2015, 15 (9), pp.4729-4730. ⟨10.1109/JSEN.2015.2435991⟩. ⟨hal-03224662⟩

• Communication dans un congrès

Measurement Accuracy and Repeatability in Near-Field Scanning Microwave Microscopy

S. Gu, Kamel Haddadi, A. El Fellahi, Gilles Dambrine, T. Lasri

We report on the accuracy and repeatability tests for near-field scanning microwave microscopy applications by associating a network analyzer and an evanescent microwave probe (EMP). A broadband matching network based on an interferometric technique is used to achieve a strong electromagnetic…

IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2015, IEEE, May 2015, Pisa, Italie. pp.1735-1740, ⟨10.1109/I2MTC.2015.7151542⟩. ⟨hal-03224665⟩

• 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⟩

• Communication dans un congrès

Polarimetric properties and modeling of the power delay profile in large hall scenarios

Shiqi Cheng, Davy Gaillot, Pierre Laly, M. Lienard, Thierry Demol, Emmeric Tanghe, Wout Joseph, Luc Martens

24th European Conference on Networks and Communications, EuCNC 2015, Jun 2015, Paris, France. pp.113-117, ⟨10.1109/EuCNC.2015.7194051⟩. ⟨hal-03346255⟩

• 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⟩

• Communication dans un congrès

Non-contact ultrasonic non-destructive techniques : state of the art and their use in civil engineering

Mariusz Kaczmarek, Bogdan Piwakowski, Radoslaw Drelich

Ultrasonic methods of testing of civil engineering materials in air where both transmission of waves into materials and reception of signals are contactless are reviewed. Short history, technical details and examples of applications of currently available methods are discussed. Keywords: ultrasound…

International Symposium on Non-Destructive Testing in Civil Engineering, NDT-CE 2015, Sep 2015, Berlin, Germany. 4 p. ⟨hal-04087510⟩

• Article dans une revue

Dispersion curves of 2D rods with complex cross-sections: double orthogonal polynomial approach

J.G. Yu, Jean-Etienne Lefebvre, Ch. Zhang, Faniry Emilson Ratolojanahary

Orthogonal polynomial series approach has been used to analyze the guided wave propagation in structures for about 20 years. These structures have always one infinite dimension in the waveguiding direction and, sometimes a regular finite cross-section (axially infinite solid or hollow cylinder for…

Meccanica, 2015, 50 (1), pp.109-117. ⟨10.1007/s11012-014-0058-z⟩. ⟨hal-04080911⟩

• 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

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⟩