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Affichage de 1471 à 1480 sur 6388

Poster de conférence

Utilisation de réseaux de capteurs sans fil afin d’améliorer l’efficacité énergétique dans des véhicules ferroviaires connectés

Sara Iben Jellal, Michael Bocquet, Ulrich Biaou, S. Baranowski

Les travaux présentés dans ce papier ont été réalisés lors du développement d’une solution basée sur un réseau de capteurs sans fil permettant d’améliorer l’efficacité énergétique à bord des véhicules ferroviaires. Dans un premier temps, l’étude des différentes technologies existantes associée aux...

8ème Conférence Plénière Biennale du GdR Ondes 2451, Oct 2019, Gif-sur-Yvette, France. , pp.47-48. ⟨hal-03574165⟩

Communication dans un congrès

Sensitivity range optimization of surface acoustic wave humidity ultrasonic sensors incorporating a polyvinyl alcohol (PVA) layer

Saliou Ndao, Marc Duquennoy, Christian Courtois, Mohammadi Ouaftouh, Mohamed Rguiti, Nikolay Smagin

In this paper, Surface Acoustic Wave (SAW) delay line (DL) based humidity sensors are optimized. These sensors comprise two ultrasonic interdigital transducers (IDT) for generating and detecting SAW. The SAWs propagate along a piezoelectric substrate covered with a polyvinyl alcohol (PVA) layer...

18th IEEE Sensors Conference, IEEE SENSORS 2019, Oct 2019, Montreal, Canada. pp.1-4, ⟨10.1109/SENSORS43011.2019.8956596⟩. ⟨hal-03594341⟩

Article dans une revue

Dielectric, ferroelectric, piezoelectric properties, and impedance spectroscopy of (Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 )O 3 -x% (K 0.5 Bi 0.5 )TiO 3 lead-free ceramics

Naima Zidi, Ahcène Chaouchi, Mohamed Rguiti, Yannick Lorgouilloux, Christian Courtois

The influence of (K0.5Bi0.5)TiO3 on structure, microstructure and piezoelectric properties of (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 (BCTZ) piezoelectric ceramics was investigated. Impedance spectroscopy was used to get better understanding of the electrical properties of the materials as a function of...

Ferroelectrics, 2019, 551 (1), pp.152-177. ⟨10.1080/00150193.2019.1658043⟩. ⟨hal-03479286⟩

Thèse

Influence of surface texturing on the biocompatibility of breast implants, Influence de la texturation de surface sur la biocompatibilité des implants mammaires

Charles Garabedian

The first breast implant surface pattern approved by the American Food and Drug Administration (FDA) is Biocell texture commercialized by the American company Allergan in 1987. Most breast implant manufacturers then adopted similar surface patterning process. A report from the Agence Nationale de..., La première structuration de surface d’implants mammaires approuvée par l’agence sanitaire américaine Food and Drug Administration (FDA) est la texturation Biocell de l’Américain Allergan en 1987. La plupart des fabricants d’implants mammaires ont ensuite adopté des procédés permettant d’obtenir...

Engineering Sciences [physics]. Université Polytechnique Hauts-de-France, 2019. English. ⟨NNT : 2019UPHF0007⟩. ⟨tel-03359321⟩

Article dans une revue

Numerical study of the reflected elastic waves using Rayleigh diffraction integral

Nadir Maghlaoui, Hakim Djelouah, Assia Oudina, Mohamed Ourak, Farouk Benmeddour

In this work, the transient ultrasonic waves radiated by a linear phased array transducer in a liquid then reflected at a liquid solid interface is studied. A model based on the Rayleigh integral is used where the reflection at the plane interface is considered by using the reflection coefficients...

IOP Conference Series: Materials Science and Engineering, 2019, 657 (1), pp.012014. ⟨10.1088/1757-899X/657/1/012014⟩. ⟨hal-03592287⟩

Article dans une revue

FPGA Implementation of a Novel Construction of Optical Zero-Correlation Zone Codes for OCDMA Systems

Samia Driz, Benattou Fassi, Mohammed Amine Mansour, Abdelmalik Taleb-Ahmed

This paper proposes a novel method for constructing optical zero-correlation zone (OZCZ) codes based on the Mutually Orthogonal Complementary Sets (MOCS) matrix and the concatenation operation. The most important property of the obtained codes is that the periodic correlation function of the...

Journal of Optical Communications, 2019, ⟨10.1515/joc-2019-0048⟩. ⟨hal-03679875⟩

Communication dans un congrès

Optimal Direct Adaptive Fuzzy Controller based on Bat Algorithm for UAV Quadrotor

Hossam Eddine Glida, Latifa Abdou, Abdelghani Chelihi, Chouki Sentouh

An optimal direct robust adaptive fuzzy controller (ODAFC) for a quadrotor system using bat algorithm (BA) is presented in this paper. The concept of this approach is to decouple the entire system into four single-input single-output (SISO) subsystems. Then, a Mamdani-type fuzzy adaptive controller...

2019 8th International Conference on Systems and Control (ICSC), Oct 2019, Marrakesh, Morocco. pp.52-57, ⟨10.1109/ICSC47195.2019.8950585⟩. ⟨hal-03406797⟩

Thèse

Contribution à la modélisation des chaînes informationnelles et des processus décisionnels associés à un produit "intelligent, Contribution to the modelling of information chains and decision making processes associated with an « intelligent » product

Vivien Basselot

Ces dernières années, les produits dits « intelligents » ont été introduits dans de nombreux domaines tels que l’industrie, la santé et le transport. Ces produits sont devenus sources d’informations durant leurs phases d’utilisations. L’obtention de ces informations constitue un avantage certain..., In recent years, “smart products” have been introduced in many areas such as industry, health and transportation systems. These products are sources of information during their use phases. Collecting, processing this information is a definite advantage to aid the various stakeholders involved in...

Contribution à la modélisation des chaînes informationnelles et des processus décisionnels associés à un produit "intelligent". Sciences de l'ingénieur [physics]. Université Polytechnique Hauts-de-France, 2019. Français. ⟨NNT : 2019UPHF0009⟩. ⟨tel-03368976⟩

Article dans une revue

Design and Creation of a Wearable Circular Ultrasonic Device for a Soft Screening and Diagnosis of Breast Abnormalities

Amira Godih, Georges Nassar, Toshima Z Parris, Nadine Saad, Elie Helou, Per Karlsson, Khalil Helou

An ultrasound breast imaging system was implemented comprising sensors with a wide lateral radiation field distributed at equal distances on rings of different diameters covering the breast. The Green function was derived to calculate the acoustic field generated by these transducers when they were...

Journal of Cancer Science and Clinical Therapeutics, 2019, 03 (04), pp.251-265. ⟨10.26502/jcsct.5079039⟩. ⟨hal-03579805⟩

Communication dans un congrès

Overview on HEVC Inter Frame Video Coding’s Impact on the Energy Consumption for Next Generation WVSNs

Achraf Ait-Beni-Ifit, Othmane Alaoui-Fdili, Patrick Corlay, François-Xavier Coudoux, Mohammed El Hassouni

With the advent of the High Efficiency Video Coding HEVC standard, wireless transmission of video data consumes more and more energy, a major concern in the field of Wireless Video Sensor Networks (WVSNs). The energy resources are limited, consisting only in the battery of the sensor nodes that...

9th International Conference on Model and Data Engineering, MEDI 2019, Oct 2019, Toulouse, France. pp.135-145, ⟨10.1007/978-3-030-32213-7_10⟩. ⟨hal-03572457⟩