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Affichage de 2191 à 2200 sur 16175

Communication dans un congrès

Tuner intégré large bande en gamme de fréquences millimétriques pour la caractérisation en technologie BiCMOS 55 nm

Caroline Maye, Marc Margalef-Rovira, Issa Alaji, Sylvie Lepilliet, D. Gloria, Guillaume Ducournau, Christophe Gaquière

Cet article présente une architecture innovante d’un tuner intégré en gamme de fréquences millimétriques pour répondre aux besoins de la caractérisation load-pull au-delà 140 GHz. L’architecture proposée ici est constituée d’un atténuateur variable à base d’un coupleur 3 dB en ligne microstrip et…

XXIIèmes Journées Nationales Microondes, Jun 2022, Limoges, France. ⟨hal-03702577⟩

Communication dans un congrès

Vers la transmission de données à 100 Gbits/s et au-delà via un réseau de photodiodes UTC éclairé par une fibre multi-cœurs

Alfred Bewindin Sawadogo, Aritrio Bandyopadhyay, Malek Zegaoui, Mohammed Zaknoune, P. Szriftgiser, Karen Baudelle, Monika Bouet, Géraud Bouwmans, Davy Gaillot, Esben Ravn Andresen, Guillaume Ducournau, Laurent Bigot

Ce travail a pour but d'exciter un réseau d’UTC-PD avec une fibre multi-cœurs afin de générer des porteuses THz multiples. Cet émetteur basé sur la photonique devrait permettre, selon la configuration,d'augmenter les débits par multiplexage spatial sur différentes porteuses ou la…

XXIIèmes Journées Nationales Microondes, Jun 2022, Limoges, France. ⟨hal-03702642⟩

Article dans une revue

Enhancing Cycling Stability and Specific Capacitance of Vanadium Nitride Electrodes by Tuning Electrolyte Composition

Emile Haye, Yuanyuan Miao, David Pilloud, Camille Douard, Rabah Boukherroub, Jean-François Pierson, Thierry Brousse, Stéphane Lucas, Laurent Houssiau, Jean-Jacques Pireaux, Amine Achour

In this study, the tuning of the KOH electrolyte composition is proposed as a strategy to drastically limit the capacitance fade of vanadium nitride (VN) electrode. We demonstrate that the use of a V5+ (as VO43- vanadates anions) containing KOH electrolyte enhances the cycling stability of VN thin…

Journal of The Electrochemical Society, 2022, 169 (6), 063503, 8 p. ⟨10.1149/1945-7111/ac7353⟩. ⟨hal-03682462⟩

Communication dans un congrès

New gEneration of adaptable Wireless sensor NEtwork for way side objeCTs in rAilway enviRonments (NEWNECTAR), a laboratory demonstrator for optimized data collection process in rail

Dereje Mechal Molla, Hakim Badis, Marion Berbineau, Laurent George, Ali Sabra, Hayfa Ben Thameur, Iyad Dayoub, Mohammad Kalaagi, D. Seetharamdoo, Hakim Takhedmit

The development of networking and wireless technologies has opened the gates to the deployment of various types of Wireless Sensor Networks (WSNs) in the railway sector, allowing numerous distributed sensors to be networked to constantly monitor both fixed and moving objects in the railway systems…

13h World Congress on Railway Research 2022, Jun 2022, Birmingham, United Kingdom. ⟨hal-04487742⟩

Communication dans un congrès

Ultrasonic coda wave interferometry (CWI) for detecting a change at interface of a solid surface - Applications for monitoring fouling, biofilm growth, cleaning and corrosion

Guillaume Delaplace, Pierre Campistron, Marwan Abdallah, A. Boutignon, T. Danel, Simon Khelissa, Thierry Six, Laurent Wauquier, Thomas Dubois, Nour-Eddine Chihib, Pascal Debreyne, Cyril Nicard, Ingrid Proriol Serre, David Balloy, B. Chen, Maxime Farin, Olivier Brehault, Dorothée Debavelaere-Callens, Lynda Chehami, Farouk Benmeddour, Emmanuel Moulin

Fouling of heat exchanger and corrosion occurs in many industrial sectors which causes considerable economic losses and increases public health risks. Therefore, it is important to develop devices to monitor the formation/removal of fouling and the corrosion occurrence. Such devices permit to…

Heat Exchanger Fouling and Cleaning XIV, Jun 2022, Wagrain, Austria. ⟨hal-03866991⟩

Communication dans un congrès

Toward Efficient FMS Scheduling Through Rules Combination Using an Optimization-Simulation Mechanism

Wassim Bouazza, Yves Sallez, Damien Trentesaux

Driven by innovations in production techniques and tools, factories are becoming more and more flexible. In addition, the growth of technologies such as the Industrial Internet of Things is making production systems holding more and more decisional nodes and entities. Thus, one of the key…

SOHOMA’21 : 11th International Workshop on Service Oriented, Holonic and Multi-Agent Manufacturing Systems for Industry of the Future, Nov 2021, Cluny, France. pp.559-571, ⟨10.1007/978-3-030-99108-1_40⟩. ⟨hal-03691377⟩

Communication dans un congrès

SNCF workers detection in the railway environment based on improved YOLO v5

Yahia Hathat, Djamel Samai, Azeddine Benlamoudi, Khaled Bensid, Abdelmalik Taleb-Ahmed

In nearest past years object detection techniques becomes the magic key to solving several problems in computer vision, in this work, we introduce our enhanced YOLO v5 detector for detecting SNCF (National Society of France Railroad) workers in the railway environment. Our contribution in this work…

2022 7th International Conference on Image and Signal Processing and their Applications (ISPA), May 2022, Mostaganem, Algeria. pp.1-7, ⟨10.1109/ISPA54004.2022.9786027⟩. ⟨hal-03689492⟩

Communication dans un congrès

Segmentation and classification of benign and malignant breast tumors via texture characterization from ultrasound images

Mohamed Benaouali, Mohamed Bentoumi, Menad Touati, Abdelmalik Taleb-Ahmed, Malika Mimi

The present paper deals with breast tumors classification from ultrasound images. The proposed procedure consists of four steps, namely preprocessing, segmentation, feature extraction and classification. To improve the quality of ultrasound images, the preprocessing step consists of anisotropic…

2022 7th International Conference on Image and Signal Processing and their Applications (ISPA), May 2022, Mostaganem, Algeria. pp.1-4, ⟨10.1109/ISPA54004.2022.9786350⟩. ⟨hal-03689545⟩

Article dans une revue

Adsorption-reduction of Cr(VI) onto unmodified and phytic acid-modified carob waste: Kinetic and isotherm modeling

Kenza Bouaouina, Alexandre Barras, Nacer Bezzi, Mohammed Amin, Sabine Szunerits, Rabah Boukherroub

Carob waste (CW) is an agro-biomass material abundant in nature with potential use for eco-friendly remediation. However, like many biomass-based adsorbents, it suffers from its low adsorption capacity for organic/inorganic pollutants. Therefore, modification using physical and/or chemical means is…

Chemosphere, 2022, 297, pp.134188. ⟨10.1016/j.chemosphere.2022.134188⟩. ⟨hal-03663997⟩

Article dans une revue

[Review] Lessons from neonatal β-cell epigenomic for diabetes prevention and treatment

Amar Abderrahmani, Cécile Jacovetti, Romano Regazzi

Pancreatic β-cell expansion and functional maturation during the birth-to-weaning period plays an essential role in the adaptation of plasma insulin levels to metabolic needs. These events are driven by epigenetic programs triggered by growth factors, hormones, and nutrients. These mechanisms…

Trends in Endocrinology and Metabolism = Trends in Endocrinology & Metabolism , 2022, 33 (6), pp 378-389. ⟨10.1016/j.tem.2022.03.002⟩. ⟨hal-03662823⟩