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Affichage de 5531 à 5540 sur 16170

Article dans une revue

Energy Consumption Models For MISO-UWB and TR-MISO-UWB Systems

Adil El Abboubi, Fouzia Elbahhar, Marc Heddebaut, Yassin El Hillali

this paper, an energy consumption model is developed and exploited to evaluate the electrical energy consumption of ultra-wideband impulse radio (UWB-IR) systems. We develop the energy consumption models and our comparative study, on the one hand, for a system based single-input singleoutput (SISO...

JET - International Journal of electronics and telecommunications, 2017, 63 (3), pp. 285-291. ⟨10.1515/eletel-2017-0038⟩. ⟨hal-01583331⟩

Communication dans un congrès

The influence of the presence of a defect in a structure on the cross-correlation, application to the tubular structure

Karl Hourany, Youssef Zaatar, Farouk Benmeddour, Emmanuel Moulin, Dorothée Debavelaere-Callens, Jamal Assaad

The aim of this paper is to verify experimentally the constant possibility of performing a Structural Health Monitoring (SHM) in a medium by studying the ambient noise present therein. First, we will illustrate the equivalence between the Green's function and the cross-correlation, then we...

1st International Conference on Sensors, Networks, Smart and Emerging Technologies (SENSET), Sep 2017, Beriut, Lebanon. ⟨10.1109/SENSET.2017.8125066⟩. ⟨hal-03280236⟩

Communication dans un congrès

A text-dependent speaker-recognition system

Dany Ishac, Antoine Abche, Elie Karam, Georges Nassar, Dorothée Debavelaere-Callens

In this work, a voice recognition approach is developed and presented. It is a based on acquiring the signal of vocal cords' vibrations of a person using a piezoelectric transducer element attached on a collar wrapped around the neck. The recognition is then based on the vocal cords vibrations...

IEEE International Instrumentation and Measurement Technology Conference (I2MTC), May 2017, Torino, Italy. pp.147-152. ⟨hal-03280240⟩

Communication dans un congrès

Passive UHF RFID system evaluation in a retail environment

Hadi Farhat, Plamen Iliev, Philippe Mariage, Nathalie Rolland

The work in this paper presents the study of the influence of a particular environment on the performances of passive UHF RFID tags attached to products presented in a retail store. The effects of the near-field environment and of the far field environment are successively and separately...

2nd International Multidisciplinary Conference on Computer and Energy Science (SpliTech), Jul 2017, Split, Croatia. pp.111-116. ⟨hal-03270105⟩

Article dans une revue

Complexity of the hot carrier relaxation in Si nanowires compared to bulk

Jing Li, Yann-Michel Niquet, Christophe Delerue

We investigate the relaxation of hot carriers by emission of phonons in bulk Si and Si nanowires (NWs) with an identical atomistic methodology. The phonon scattering is strongly enhanced in NWs. At high excitation energy, the carrier cooling is faster in NWs than in bulk, mainly due to the coupling...

Physical Review B, 2017, 95 (20), pp.205401. ⟨10.1103/PhysRevB.95.205401⟩. ⟨hal-02015399⟩

Article dans une revue

Iron minerals within specific microfossil morphospecies of the 1.88 Ga Gunflint Formation

Kevin Lepot, Ahmed Addad, Andrew H. Knoll, Jian Wang, David Troadec, Armand Béché, Emmanuelle J. Javaux

Problematic microfossils dominate the palaeontological record between the Great Oxidation Event 2.4 billion years ago (Ga) and the last Palaeoproterozoic iron formations, deposited 500-600 million years later. These fossils are often associated with iron-rich sedimentary rocks, but their affinities...

Nature Communications, 2017, 8, ⟨10.1038/ncomms14890⟩. ⟨insu-03688102⟩

Article dans une revue

Ambipolar spin diffusion in p-type GaAs: A case where spin diffuses more than charge

Fabian Cadiz, V. Notot, J. Filipovic, D. Paget, C. Weber, L. Martinelli, A. Rowe, S. Arscott

We investigate the diffusion of charge and spin at 15 K in p-type GaAs, combining transient-grating and energy-resolved microluminescence measurements to cover a broad range of photoelectron density. At very low optical power, in a unipolar nondegenerate regime, charge and spin diffuse at the same...

Journal of Applied Physics, 2017, 122 (9), pp.095703. ⟨10.1063/1.4985831⟩. ⟨hal-02345440⟩

Article dans une revue

Negative Differential Resistance, Memory and Reconfigurable Logic Functions Based on Monolayer Devices Derived From Gold Nanoparticles Functionalized With Electropolymerizable Thiophene-EDOT Units

Tiantian Zhang, David Guérin, F. Alibart, Dominique Vuillaume, Kamal Lmimouni, Stéphane Lenfant, Ali Yassin, Maiténa Oçafrain, Philippe Blanchard, Jean Roncali

We report on hybrid memristive devices made of a network of gold nanoparticles (10 nm diameter) functionalized by tailored 3,4-(ethylenedioxy)thiophene (TEDOT) molecules, deposited between two planar electrodes with nanometer and micrometer gaps (100 nm to 10 μm apart), and electropolymerized in...

Journal of Physical Chemistry C, 2017, 121 (18), pp.10131-10139. ⟨10.1021/acs.jpcc.7b00056⟩. ⟨hal-02564472⟩

Article dans une revue

Correction to: Effect of incubation duration, growth temperature, and abiotic surface type on cell surface properties, adhesion and pathogenicity of biofilm-detached Staphylococcus aureus cells

Oussama Khelissa, Charafeddine Jama, Marwan Abdallah, Rabah Boukherroub, Christine Faille, Nour-Eddine Chihib

Following publication of the original article (Khelissa et al. 2017), the authors reported that the legend for Fig. 3 contained an error. Instead of “Adhesion of planktonic and biofilm-detached Staphylococcus aureus cells on stainless steel and polycarbonate. Cell cultures were grown at 20, 30 and...

AMB Express, 2017, 7 (191), ⟨10.1186/s13568-017-0509-8⟩. ⟨hal-02623145⟩

Article dans une revue

High temperature gradient nanogap-Pirani micro-sensor with maximum sensitivity around atmospheric pressure

Cécile Ghouila-Houri, Abdelkrim Talbi, R. Viard, M. Moutaouekkil, O. Elmazria, Q. Gallas, E. Garnier, A. Merlen, Philippe Pernod

This letter describes and discusses the design and testing of an effcient nanogap Pirani micro-sensor for pressure measurements in a wide range with a maximum sensitivity around atmospheric pressure. The structure combines a substrate-free heated wire and mechanical support using silicon oxide...

Applied Physics Letters, 2017, 111, pp.113502. ⟨10.1063/1.4995364⟩. ⟨hal-01635348⟩