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Affichage de 41 à 50 sur 16445

Article dans une revue

Measurement of the electrical conductivity of aqueous metal chloride solutions using a phononic crystal sensor

Fares Kanouni, Mosbah Daamouche, Ahmed Mehaney, Mahdi Rahmani, Bouras Ilyas, Hussein Elsayed, Bahram Djafari-Rouhani

Abstract This work proposes a novel approach for the measurement of electrical conductivity in aqueous solutions of transition metal chlorides, specifically CuCl 2 –water, FeCl 3 –water, and NiCl 2 –water using a phononic–fluidic sensor. Indeed, it establishes a direct correlation between…

Journal of Physics D: Applied Physics, 2026, 59 (31), pp.315304. ⟨10.1088/1361-6463/ae8ddf⟩. ⟨hal-05724996⟩

Article dans une revue

Electrochemically Tunable PEDOT:PSS Film for Surface Acoustic Wave-Based Humidity Sensing

Nour Abdallah, Alexandre Westrelin, Pierre Debavelaere, Mathieu Lefebvre, S. Hamade, Olivier Stienne, Bilel Hafsi

The increasing demand for humidity detection in both commercial and industrial applications has driven the rapid advancement of humidity sensors built on various technologies. Among these, surface acoustic wave (SAW) technology has emerged as a promising solution, thanks to its inherent advantages…

Organic Electronics, 2026, 155, pp.107430. ⟨10.1016/j.orgel.2026.107430⟩. ⟨hal-05418300v2⟩

Communication dans un congrès

Extraction of Defects Scattering Properties from Reverberating Coda Waves

Elie Farha, Lynda Chehami, Emmanuel Moulin, Nikolay Smagin

The propagation of acoustic waves in a finite medium with low attenuation results in long-duration measured signals (reverberation). In conventional non-destructive testing and imaging techniques, only the first wave packets are exploited, and the information potentially contained in the…

12th European Workshop on Structural Health Monitoring (EWSHM 2026), Jul 2026, Toulouse, France. ⟨10.58286/34029⟩. ⟨hal-05725162⟩

Article dans une revue

Toward Polyoxometalate Nanoelectronics

Dominique Vuillaume, Anna Proust

Polyoxometalates form a large family of molecular oxide clusters of the early transition metals with unique and tunable properties (multi-redox, thermal and chemical robustness, magnetic). We review more than 30 years of experimental research on the electron transport properties of polyoxometalates…

Chemical Reviews, 2026, 126 (15), pp.8599-8643. ⟨10.1021/acs.chemrev.6c00120⟩. ⟨hal-05491371v3⟩

Article dans une revue

Static Friction of Liquid Marbles

Yui Takai, Kei Mukoyama, Pritam Kumar Roy, Guillaume Lagubeau, David Quéré, Samuel Poincloux, Timothée Mouterde

Liquid marbles, droplets coated with a granular layer, are highly mobile as particles prevent capillary adhesion to the substrate. Yet their coating creates a static rolling friction, which we measure and model. Motion requires shear within the shell so that it is governed mainly by the grain…

Physical Review Letters, 2026, 137 (5), pp.054001. ⟨10.1103/njnj-yhc6⟩. ⟨hal-05724966⟩

Article dans une revue

Heavy-ion irradiation of interstellar carbonaceous and siliceous composite dust analogs. Cosmic ray-grain interactions at the nanometer scale

Eddy Abdo, Emmanuel Dartois, Marin Chabot, Olivier Sublemontier, Thibault Nguyen Trung, Emeline Charon, Frieder Koch, Pascal Simon, Ina Schubert, Marie Godard, Thomas Pino, Cécile Engrand, David Troadec, Sandra Casale, Joffrey Fréreux

Context. Interstellar dust made of siliceous and carbonaceous grains is exposed to cosmic ray ions in the diffuse and dense medium. This highly energetic interaction not only affects the morphology of such systems, but also plays a role in altering the surface and bulk chemistry. These two effects…

Astronomy & Astrophysics - A&A, 2026, ⟨10.1051/0004-6361/202659972⟩. ⟨hal-05719219⟩

Article dans une revue

Material-specific mapping of plasmonic modal dispersion via discrete momentum-space probes

Youssef El Badri, Hicham Mangach, Yan Pennec, Bahram Djafari-Rouhani, Abdenbi Bouzid, Mustapha Bahich, Younes Achaoui

Abstract Accurate measurement of surface plasmon polariton (SPP) dispersion remains challenging, as conventional angle-resolved techniques are limited by surface quality, diffraction artifacts, and geometry-induced band folding. Here, we show that SPP dispersion can be reconstructed from…

Journal of Physics D: Applied Physics, 2026, 59 (29), pp.295305. ⟨10.1088/1361-6463/ae8bbc⟩. ⟨hal-05719127⟩

Article dans une revue

Temperature and Bias Dependence of the DC and RF Characteristics of a 150 nm AlGaN/GaN-on-SiC HEMT for Microwave Applications

Mohammad Abdul Alim, Christophe Gaquiere

We examine the bias-and temperature-dependent direct current, radio frequency, and equivalent-circuit characteristics of a 150 nm AlGaN/GaN/SiC high-electron-mobility transistor (HEMT) for high-frequency applications. DC and S-parameter measurements on the wafer were conducted under various gate-…

Micromachines, 2026, 17, ⟨10.3390/mi17080874⟩. ⟨hal-05737603⟩

Pré-publication, Document de travail

Out-of-Plane Transport and Thermal Properties of an Organic Charge-Transfer Thin Film and Their Donor/Acceptor Constituents.

Maria Elisabetta Giglio, Alexandra Harbuzaru, L. Thomas, Dominique Vuillaume, Marta Mas-Torrent

Vertical charge injection and out-of-plane heat transport are central to organic electronic materials, yet remain largely unexplored in solution-processed thin films of donor-acceptor charge-transfer systems. Here, we investigate Ph-BTBT-C10, F4TCNQ, and their 1:1 charge-transfer complex (CTC) by…

2026. ⟨hal-05701996⟩

Article dans une revue

Optimizing Gene Selection in DNA Microarray Data Using Multigene Genetic Programming

Chahira Cherif, Mohammed Maiza, Samira Chouraqui, Mustapha Kamel Abdi, Abdelmalik Taleb-Ahmed

Microarray-based cancer classification confronts a fundamental statistical obstacle: the number of measured gene expression features (p) substantially exceeds available tissue samples (n), violating the n > p prerequisite of classical multivariate inference. This dimensionality surplus-…

International Journal of Computing and Digital Systems, 2026, 19 (1), pp.1-15. ⟨10.12785/ijcds/1571137557⟩. ⟨hal-05725025⟩