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Affichage de 2511 à 2520 sur 16092

Article dans une revue

Synthesis of Cyano-Benzylidene Xanthene Synthons Using a Diprotic Brønsted Acid Catalyst, and Their Application as Efficient Inhibitors of Aluminum Corrosion in Alkaline Solutions

Mohammed Amin, Gaber Mersal, Morad El-Hendawy, Abdallah Shaltout, Ali Badawi, Johan Boman, Adil Gobouri, Murat Saracoglu, Fatma Kandemirli, Rabah Boukherroub, Jacek Ryl, Mohamed Khalifa

Novel cyano-benzylidene xanthene derivatives were synthesized using one-pot and condensation reactions. A diprotic Brønsted acid (i.e., oxalic acid) was used as an effective catalyst for the promotion of the synthesis process of the new starting xanthene–aldehyde compound. Different xanthene...

Molecules, 2022, Chemistry of Corrosion Inhibitors, 27 (17), pp.5733. ⟨10.3390/molecules27175733⟩. ⟨hal-03778946⟩

Article dans une revue

Substrate-Induced Dissipative and Non-Linear Effects in RF Switches: Probing Ultimate Performance Based on Laser-Machined Membrane Suspension

Arun Bhaskar, Justine Philippe, Etienne Okada, Flavie Braud, J.F. Robillard, Cédric Durand, Frédéric Gianesello, Daniel Gloria, Christophe Gaquière, Emmanuel Dubois

With the evolution of radio frequency (RF)/microwave technology, there is a demand for circuits that are able to meet highly challenging RF front end specifications. Silicon-on-insulator (SOI) technology is one of the leading platforms for upcoming wireless generation. The degradation of...

Electronics, 2022, 11 (15), pp.2333. ⟨10.3390/electronics11152333⟩. ⟨hal-03739747⟩

Article dans une revue

Combined surface x-ray diffraction and density functional theory study of the germanene/Al(111)-(7×7) R19.1° structure

K. Zhang, M.C. Hanf, D. Sciacca, Romain Bernard, Yves Borensztein, A. Resta, Yves Garreau, A. Vlad, A. Coati, Isabelle Lefebvre, M. Derivaz, C. Pirri, P. Sonnet, R. Stephan, G. Prévot

Several studies have reported the possible growth of germanene on various metal surfaces. However, the exact structure of the layers formed upon evaporation at or above room temperature remains controversial. In particular, the layers obtained after Ge deposition on Al(111) have been either...

Physical Review B, 2022, 106 (4), pp.045412. ⟨10.1103/PhysRevB.106.045412⟩. ⟨hal-03742119⟩

Communication dans un congrès

Sub-nanosecond pulse technology applied to millimetre wave systems for TDoA-based geolocalization

Christophe Loyez, Michael Bocquet, Nathalie Rolland, Kamel Haddadi

This study deals with a geolocation system that uses sub-nanosecond pulsed radio signals. Based on Time Difference of Arrival (TDoA), it allows the localization of 60-GHz transmitters in an indoor environment with an accuracy compatible with the requirements of the next generation of communicating...

2022 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNeT), Jan 2022, Las Vegas, United States. pp.50-53, ⟨10.1109/WiSNet53095.2022.9721359⟩. ⟨hal-03600035⟩

Article dans une revue

Ultrasonic investigation of the effect of compressive strains on 3D periodic bi-material structures

Lynda Chehami, Jingfei Liu, Pascal Pomarède, Paul Lohmuller, Boris Pittrowski, Fodil Meraghni, Nico Declercq

Due to the specific elastic properties such as high stiffness to mass ratio, regular microstructure materials are widely used in the industry. The need for nondestructive evaluation is ubiquitous to ensure material quality. As an effective nondestructive testing method, ultrasound has great...

Acta Acustica, 2022, 6, pp.26. ⟨10.1051/aacus/2022023⟩. ⟨hal-03748457⟩

Article dans une revue

Investigation of the Eigen Frequency of a Cantilever Microbeam Immersed in a Fluid Under the Piezoelectric Effect

Victory Elias, Flavie Braud, Philippe Champagne, Georges Nassar

In this paper, a new model of piezoelectric cantilever is developed, it can be heavily used in a micro electromechanical system (MEMS). This new prototype eliminates several risks caused by the previous means already used and increases the sensation in terms of rheology. Our approach is based on...

Sensors & Transducers., 2021, 254 (7), pp.31-37. ⟨hal-03564209⟩

Article dans une revue

Dendritic Organic Electrochemical Transistors Grown by Electropolymerization for 3D Neuromorphic Engineering

K. Janzakova, M. Ghazal, A. Kumar, Yannick Coffinier, Sébastien Pecqueur, F. Alibart

One of the major limitations of standard top-down technologies used in today's neuromorphic engineering is their inability to map the 3D nature of biological brains. Here, it is shown how bipolar electropolymerization can be used to engineer 3D networks of PEDOT:PSS dendritic fibers. By...

Advanced Science, 2021, 8 (24), pp.2102973. ⟨10.1002/advs.202102973⟩. ⟨hal-03542157⟩

Communication dans un congrès

Performance Projection of GaN HEMT: Bias and Temperature Dependent Study of 3 rd -Order Intermodulation Distortion

Mohammad Alim, I. Jahan, Mayahsa Ali, Christophe Gaquière

The third-order intermodulation distortion in AlGaN/GaN high electron mobility transistors fabricated on SiC substrate for power amplifier applications is reported in this study as a function of bias and temperature. The nonlinearity of active devices in terms of frequency and input power was...

2021 3rd International Conference on Sustainable Technologies for Industry 4.0 (STI), Dec 2021, Dhaka, Bangladesh. pp.1-4, ⟨10.1109/STI53101.2021.9732585⟩. ⟨hal-03663718⟩

Pré-publication, Document de travail

Condensation and Growth of Amorphous Aluminosilicate Nanoparticles by Aggregation Process

Romain Dupuis, Seung Ho Hahn, Adri C. T. van Duin, Roland Pellenq, Arnaud Poulesquen

The precipitation of zeolite nanoparticles involves the initial formation of metastable precursors such as amorphous entities that crystalize through non-classical pathways. Here, using reactive force field based simulations, we reveal how aluminosilicate oligomers grow concomitantly to the...

2021. ⟨hal-03484661⟩

Rapport

Imputabilité à la présence d’un champ d’éoliennes de troubles rapportés dans deux élevages bovins

Yves Millemann, Cyrille Balland, Fabrice Giraudet, Lionel Grisot, Jean-François Labbé, James Roudet, Stéphane Tirlemont, Damien Voyer, Gilles Meyer, Catherine Belloc, Stéphane Bertagnoli, Alain Boissy, Henri-Jean Boulouis, Eric Collin, Jean-Claude Desfontis, Maria-Eleni Filippitzi, David Fretin, Emmanuelle Gilot-Fromont, Etienne Giraud, Nadia Haddad, Viviane Henaux, Elsa Jourdain, Sophie Le Bouquin Le Neveu, Sophie Le Poder, Elodie Monchatre-Leroy, Monique L’hostis, François Meurens, Pierre Mormede, Hervé Morvan, Carine Paraud, Ariane Payne, Carole Peroz, Claire Ponsart, Claude Saegerman, Gaëlle Simon, Jean-Pierre Vaillancourt, Anne Pereira de Vasconcelos, Thomas Claudepierre, Brigitte Debuire, Jean-François Doré, Thierry Douki, Jack Falcón, Emmanuel Flahaut, François Gaudaire, Irina Guseva-Canu, Martine Hours, Chaker Larabi, Joël Lelong, Frédérique Moati, Catherine Mouneyrac, Fabien Ndagijimana, Anne-Lise Paradis, Marie-Pierre Rols, Valérie Simonneaux, Alain Soyez, Esko Toppila, Alicia Torriglia, Françoise Viénot, Catherine Yardin, Valentina Andreeva, Serge Boarini, Anne Bourdieu, Jean-Marie Burkhardt, Philippe Chaumet-Riffaud, Pierre Degauque, Didier Dulon, Guillaume Dutilleux, Nicolas Feltin, Luc Fontana, Pierre-Marie Girard, Pascal Guenel, Thierry Letertre, Jean-Luc Morel, Catherine Collignon, Florence Étoré, Anthony Cadene

Selon la saisine, des troubles dans deux élevages bovins ont été rapportés comme concomitants à la construction en 2012 du parc éolien des Quatre Seigneurs, constitué de huit éoliennes situées sur quatre communes de Loire-Atlantique, à respectivement 800 et 1 300 mètres des deux élevages bovins...

[0] Saisine n° 2019-SA-0096, Anses. 2021, 219 p. ⟨anses-03792942⟩