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Affichage de 1781 à 1790 sur 16347

Article dans une revue

Subsonic cavity flow control with Micro-Magneto-Mechanical Systems (MMMS) microvalves

Thomas Arnoult, Colin Leclercq, Cécile Ghouila-Houri, A. Mazzamurro, R. Viard, Eric Garnier, C. Poussot-Vassal, A. Merlen, Denis Sipp, Philippe Pernod, Abdelkrim Talbi

Flow control consists in modifying a flow natural state in order to converge towards another state which is considered as favorable, as drag or noise radiation might be reduced. In this paper, open-loop flow control experiments are carried out on a subsonic open-cavity flow. In the case of unstable…

Sensors and Actuators A: Physical , 2023, 354, pp.114257. ⟨10.1016/j.sna.2023.114257⟩. ⟨hal-04045012⟩

Article dans une revue

Novel mm-Wave Oscillator Based on an Electromagnetic Bandgap Resonator

Enrico Lia, Indra Ghosh, Stephen Hanham, Benjamin Walter, Fuanki Bavedila, Marc Faucher, Andrew Gregory, Leif Jensen, Jan Buchholz, Horst Fischer, Ulrich Altmann, Rüdiger Follmann

This letter introduces a novel millimeter (mm)-wave oscillator concept based on an electromagnetic bandgap (EBG) resonator (also called a photonic crystal resonator). To realize an ultralow phase noise monolithic microwave integrated circuit (MMIC) oscillator, an EBG resonator is developed by…

IEEE Microwave and Wireless Technology Letters, 2023, 33 (6), pp.863-866. ⟨10.1109/LMWT.2023.3268090⟩. ⟨hal-04189186⟩

Article dans une revue

Automatically weighted binary multi-view clustering via deep initialization (AW-BMVC)

Khamis Houfar, Djamel Samai, Fadi Dornaika, Azeddine Benlamoudi, Khaled Bensid, Abdelmalik Taleb-Ahmed

Clustering is inherently a process of exploratory data analysis. It has attracted more attention recently because much real-world data consists of multiple representations or views. However, it becomes increasingly problematic when dealing with large and heterogeneous data. It is worth noting that…

Pattern Recognition, 2023, 137, pp.109281. ⟨10.1016/j.patcog.2022.109281⟩. ⟨hal-03949422⟩

Article dans une revue

Design and fabrication of an inverted hat antenna paired with a filled cavity for radio-navigation applications

Z. Hamouda, S. Azaizia, M. Hideche, A. Zemmam, T. Lasri

Antennas installed on aircraft are used for communications as well as for various radio navigation systems such as direction finders, distance measuring systems, and altimeters. Generally, these systems use blade antennas operating in the L frequency band. Recently, inverted-hat empty section…

International Journal of Microwave and Wireless Technologies, 2023, 15 (4), pp.641 - 648. ⟨10.1017/S1759078722000629⟩. ⟨hal-03694832⟩

Article dans une revue

Effect of different separation frequencies of the two-tone input signal on the output power of GaN on SiC HEMT

Mohammad Abdul Alim, Mayahsa Ali, Christophe Gaquière

This research aims to determine whether a GaN HEMT device made on SiC substrate has a memory effect. To accomplish this, the intermodulation distortion technique with the separation frequency (Δf) of the two-tone input signals was applied at three different frequency levels, one at f1 = 53 MHz and…

Micro and Nanostructures, 2023, 177, pp.207547. ⟨10.1016/j.micrna.2023.207547⟩. ⟨hal-04034333⟩

Article dans une revue

Friction dynamics of elasto-inertial turbulence in Taylor–Couette flow of viscoelastic fluids

Masoud Moazzen, Tom Lacassagne, Vincent Thomy, S. Amir Bahrani

Dynamic properties of elasto-inertial turbulence (EIT) are studied in a Taylor–Couette geometry. EIT is a chaotic flow state that develops upon both non-negligible inertia and viscoelasticity. A combination of direct flow visualization and torque measurement allows to verify the earlier onset of…

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2023, 381 (2246), ⟨10.1098/rsta.2022.0300⟩. ⟨hal-04215397⟩

Article dans une revue

A novel cloud approach for connected vehicles

Geoffrey Wilhelm, Marwane Ayaida, Hacène Fouchal

Cooperative intelligent transport systems (C-ITSs) are being deployed all around the world. Shortly, in addition to vehicles, bicycles, pedestrians, buses, and all moving equipment will be compatible with C-ITS. These systems are connected through wireless local area networks based on WIFI IEEE 802…

Applied Sciences, 2023, Special Issue Cooperative-Intelligent Transport Systems: New Challenges, 13 (9), pp.5514. ⟨10.3390/app13095514⟩. ⟨hal-04188109⟩

Article dans une revue

Performance improvement with non-alloyed ohmic contacts technology on AlGaN/GaN High Electron Mobility Transistors on 6H-SiC substrate

Marie Lesecq, Yassine Fouzi, Ali Abboud, N. Defrance, Francois Vaurette, Saliha Ouendi, Etienne Okada, Marc Portail, Micka Bah, Daniel Alquier, Jean-Claude de Jaeger, Eric Frayssinet, Yvon Cordier

In this paper, non-alloyed ohmic contacts regrown by molecular beam epitaxy (MBE) are fabricated on AlGaN/ GaN high-electron-mobility transistors on 6H-SiC substrate. Low ohmic contact resistance of 0.13 Ω.mm is obtained. This paper demonstrates the high frequency and high power performance…

Microelectronic Engineering, 2023, 276, pp.111998. ⟨10.1016/j.mee.2023.111998⟩. ⟨hal-04084512⟩

Article dans une revue

Genes Involved in miRNA Biogenesis Are Not Downregulated in SARS-CoV-2 Infection

Nathalie Garnier, Famara Sane, Layal Massara, Fabrice Soncin, Philippe Gosset, Didier Hober, Sabine Szunerits, Ilka Engelmann

miRNAs, small non-coding RNAs that regulate gene expression, are involved in various pathological processes, including viral infections. Virus infections may interfere with the miRNA pathway through the inhibition of genes involved in miRNA biogenesis. A reduction in the number and the levels of…

Viruses, 2023, 15 (5), pp.1177. ⟨10.3390/v15051177⟩. ⟨hal-04125326⟩

Article dans une revue

Precision of neuronal localization in 2D cell cultures by using high-performance electropolymerized microelectrode arrays correlated with optical imaging

Mahdi Ghazal, Corentin Scholaert, Corentin Dumortier, Camille Lefebvre, Nicolas Barois, Sebastien Janel, Mehmet Tarhan, Morvane Colin, Luc Buée, Sophie Halliez, Sébastien Pecqueur, Yannick Coffinier, F. Alibart, Pierre Yger

Recently, the development of electronic devices to extracellularly record the simultaneous electrical activities of numerous neurons has been blooming, opening new possibilities to interface and decode neuronal activity. In this work, we tested how the use of EDOT electropolymerization to tune post…

Biomedical Physics & Engineering Express, 2023, 9 (3), pp.035016. ⟨10.1088/2057-1976/acb93e⟩. ⟨hal-03999001⟩