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Affichage de 1281 à 1290 sur 16064

Article dans une revue

Highly Conductive Tungsten Suboxide Nanotubes

Cécile Huez, Maxime Berthe, Florence Volatron, Jean-Michel Guigner, Dalil Brouri, Lise-Marie Chamoreau, Benoît Baptiste, Dominique Vuillaume, Anna Proust

We demonstrate a high electron conductivity (> 10^2 S/cm and up to 10^3 S/cm) of tungsten suboxide W18O(52.4-52.9)(or equivalently WO(2.91-2.94)) nanotubes (2 to 3 nm in diameter, ca. micrometer long). The conductivity is measured in the temperature range 120 to 300K by a four probe scanning…

Journal of Applied Physics, 2023, 134, pp.134301. ⟨10.1063/5.0170761⟩. ⟨hal-04178947v2⟩

Article dans une revue

Engineering Refractive Index Contrast in Thin Film Barium Titanate-on-Insulator

Yu Cao, Haidong Liang, Hong-Lin Lin, Luo Qi, Ping Yang, Xuanyao Fong, El Hadj Dogheche, Andrew Bettiol, Aaron Danner

Barium titanate-on-insulator has demonstrated excellent vertical optical confinement, low loss, and strong electro-optic properties. To fabricate a waveguide-based device, a region of higher refractive index must be created to confine a propagating mode, one way of which is through dry etching to…

Nano Letters, 2023, 23 (16), pp.7267-7272. ⟨10.1021/acs.nanolett.3c00933⟩. ⟨hal-04182180⟩

Article dans une revue

Highly Si‐doped GaN regrown by MOVPE for ohmic contact applied to quaternary barrier based HEMT

Charles Pitaval, Cédric Lacam, N. Defrance, Christophe Gaquière, Nicolas Michel, Olivier Parillaud, Sylvain Delage

The quaternary barrier InAlGaN is suitable for GaN HEMT power microwave applications. High doping of semiconductor under the drain and source is a known suitable solution to achieve low ohmic contact resistance. However, InAlGaN quaternary alloys require low thermal budget to avoid indium…

Physica Status Solidi A (applications and materials science), 2023, 220 (16), pp.2200476. ⟨10.1002/pssa.202200476⟩. ⟨hal-03875911⟩

Article dans une revue

Saturated long chain fatty acids as possible natural alternative antibacterial agents: opportunities and challenges

Helena Arellano, Véronique Nardello-Rataj, Sabine Szunerits, Rabah Boukherroub, Anne-Laure Fameau

The spread of new strains of antibiotic-resistant pathogenic microorganisms has led to the urgent need to discover and develop new antimicrobial systems. The antibacterial effects of fatty acids have been well-known and recognized since the first experiments of Robert Koch in 1881, and they are now…

Advances in Colloid and Interface Science, 2023, 318, pp.102952. ⟨10.1016/j.cis.2023.102952⟩. ⟨hal-04155565⟩

Article dans une revue

Polysaccharides, proteins, and synthetic polymers based multimodal hydrogels for various biomedical applications: A review

Anuj Kumar, Ankur Sood, Garima Agrawal, Sourbh Thakur, Vijay Kumar Thakur, Masaru Tanaka, Yogendra Kumar Mishra, Graham Christie, Ebrahim Mostafavi, Rabah Boukherroub, Dietmar Hutmacher, Sung Soo Han

Nature-derived or biologically encouraged hydrogels have attracted considerable interest in numerous biomedical applications owing to their multidimensional utility and effectiveness. The internal architecture of a hydrogel network, the chemistry of the raw materials involved, interaction across…

International Journal of Biological Macromolecules, 2023, 247, pp.125606. ⟨10.1016/j.ijbiomac.2023.125606⟩. ⟨hal-04186707⟩

Article dans une revue

Sensor-Location-Specific Joint Acquisition of Peripheral Artery Bioimpedance and Photoplethysmogram for Wearable Applications

Margus Metshein, Anar Abdullayev, Antoine Gautier, Benoit Larras, Antoine Frappe, Barry Cardiff, Paul Annus, Raul Land, Olev Märtens

Background: Cardiovascular diseases (CVDs), being the culprit for one-third of deaths globally, constitute a challenge for biomedical instrumentation development, especially for early disease detection. Pulsating arterial blood flow, providing access to cardiac-related parameters, involves the…

Sensors, 2023, Special Issue Use of Smart Wearable Sensors and AI Methods in Providing P4 Medicine, 23 (16), pp.7111. ⟨10.3390/s23167111⟩. ⟨hal-04195296⟩

Article dans une revue

Modeling for nonlinear acoustic imaging of an isolated crack via standing waves in a 2D solid

Vladislav Aleshin, Ravi Verma, Kevin Truyaert

AbstractThis paper is concerned with numerical modeling for nondestructive imaging of defects in solids via standing waves excited by a periodic sinewave signal. The stationary solution, purely sinusoidal in an intact sample, contains higher harmonics when damage is present. These harmonics are…

Ultrasonics, 2023, 133, pp.107023. ⟨10.1016/j.ultras.2023.107023⟩. ⟨hal-04107466⟩

Article dans une revue

Solid-Electrolyte-Free O3-LixTiS2 Cathode for High-Energy-Density All-Solid-State Lithium-Metal Batteries

Benjamin Hennequart, Michael Deschamps, Ronan Chometon, Bernhard Leube, Romain Dugas, Elisa Quemin, Pierre-Etienne Cabelguen, Christophe Lethien, Jean-Marie Tarascon

Composites made of high-capacity and high-potential LiNixMnyCo1–x–yO2 (NMC) lamellar transition-metal oxides and S-based ionic conductors are primarily used as positive electrodes in all-solid-state batteries (ASSBs). However, NMC coatings are necessary to prevent the chemical reactivity of oxygen…

ACS Applied Energy Materials, 2023, 6 (16), pp.8521-853. ⟨10.1021/acsaem.3c01383⟩. ⟨hal-04187062⟩

Communication dans un congrès

EME-GAN: A Conditional Generative Adversarial Network based Indoor EMF Exposure Map Reconstruction

Mohammed Mallik, Benjamin Allaert, Angesom Tesfay, Davy Gaillot, Joe Wiart, Laurent Clavier

New wireless communication technologies are developing exponentially. Meanwhile, concerns have arisen about the possible negative health effects of radiofrequency electromagnetic waves. This paper proposes a method based on a conditional generative adversarial network for the mapping of exposure to…, Les nouvelles technologies de communication sans fil se développent de façon exponentielle. Parallèlement des craintes sont apparues concernant de possibles effets délétères des ondes électromagnétiques de type radiofréquence sur la santé. Cet article propose une méthode basée sur un réseau…

29Â Colloque sur le traitement du signal et des image, GRETSI - Groupe de Recherche en Traitement du Signal et des Images, Aug 2023, Grenoble, France. pp.745-748. ⟨hal-04210419⟩

Article dans une revue

Enhanced Alkaline Hydrogen Evolution on Gd1.0/Ndx (x = 0.5, 1.0, 3.0, and 6.0%)-Doped TiO2 Bimetallic Electrocatalysts

Mohammed Alsawat, Naif Ahmed Alshehri, Abdallah Shaltout, Sameh Ahmed, Hanan Al-Malki, Manash Das, Rabah Boukherroub, Mohammed Amin, Mohamed Ibrahim

The work reports a facile synthesis of high thermally stable nanocrystalline anatase TiO2 nanoparticles (NPs) doped with different atomic concentrations (0.5, 1.0, 3.0, and 6.0%) of Gd3+ and Nd3+ ions by a template-free and one-step solvothermal process, using titanium(IV) butoxide as a titanium…

Catalysts, 2023, 13 (8), pp.1192. ⟨10.3390/catal13081192⟩. ⟨hal-04199822⟩