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Affichage de 3831 à 3840 sur 16174

Article dans une revue

Toward the growth of self-catalyzed ZnO nanowires perpendicular to the surface of silicon and glass substrates, by pulsed laser deposition

Basma El Zein, Yingbang Yao, Ahmad S. Barham, El Hadj Dogheche, Ghassan E. Jabbour

Vertically-oriented zinc oxide (ZnO) nanowires were synthesized on glass and silicon substrates by Pulsed Laser Deposition and without the use of a catalyst. An intermediate c-axis oriented nanotextured ZnO seed layer in the form of nanowall network with honey comb structure allows the growth of…

Materials, 2020, 13 (19), pp.4427. ⟨10.3390/ma13194427⟩. ⟨hal-03321538⟩

Article dans une revue

New Bacteriocins from Lacticaseibacillus paracasei CNCM I-5369 Adsorbed on Alginate Nanoparticles Are Very Active against Escherichia coli

Yanath Belguesmia, Noura Hazime, Isabelle Kempf, Rabah Boukherroub, Djamel Drider

Lacticaseibacillus paracasei CNCM I-5369, formerly Lactobacillus paracasei CNCM I-5369, produces bacteriocins that are remarkably active against Gram-negative bacteria, among which is the Escherichia coli-carrying mcr-1 gene that is involved in resistance to colistin. These bacteriocins present in…

International Journal of Molecular Sciences, 2020, 21 (22), pp.8654. ⟨10.3390/ijms21228654⟩. ⟨hal-03089821⟩

Article dans une revue

Temperature dependence of the Taylor series coefficients and intermodulation distortion characteristics of GaN HEMT

Mohammad Abdul Alim, Mayahsa M. Ali, Ali A. Rezazadeh, Christophe Gaquière

This paper focused on nonlinear distortion modeling and characterization of AlGaN/GaN HEMT on SiC substrate using a two-tone intermodulation measurement. The variation of Taylor series coefficients with temperature: linear terms (G$_m$ and G$_d$$_s$), nonlinear terms (G$_m$$_2$ , G$_m$$_3$ , G$_d$$…

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2020, 39 (3), pp.552-559. ⟨10.1109/TCAD.2019.2897696⟩. ⟨hal-03140634⟩

Communication dans un congrès

Scanning Acoustic Microscopy versus Colored Picosecond Acoustics to detect interface defects in hybrid wafer bonding

Solene Bossut, Arnaud Devos, S Lhostis, E Deloffre, C Euvrard, F Dettoni, C Chaton

Nowadays, microelectronics is making progress in miniaturization and diversification of chips by 3D integration: dies are stacked together to gain space and performances. The stacking used here is called hybrid bonding [1], as stacked surfaces are heterogeneous: part Cu and part oxide. After the…

Forum Acusticum, Dec 2020, Lyon, France. pp.2553-2554, ⟨10.48465/fa.2020.0878⟩. ⟨hal-03240341⟩

Article dans une revue

Mechanisms of a rectifying TiN gate contact for AlGaN/GaN HEMTs on silicon substrate

Hassane Ouazzani Chahdi, Brahim Benbakhti, Maghnia Mattalah, Jean Claude Gerbedoen, Abdelatif Jaouad, Nour Eddine Bourzgui, Ali Soltani

Rectifying Titanium Nitride (TiN) gate contact technology is developed for AlGaN/GaN based micro and nanometer HEMTs. A high compressive strain occurring in thinner TiN films (ranging from 5 nm to 60 nm), deposited by sputtering, leads to a reduction in tensile strain at the surface of AlGaN…

IEEE Transactions on Nanotechnology, 2020, 19, pp.682-688. ⟨10.1109/TNANO.2020.3019916⟩. ⟨hal-03322826⟩

Article dans une revue

Historical foundations of physics & applied technology as dynamic frameworks in pre-service STEM

Raffaele Pisano, Philippe Vincent, Kosta Dolenc, Mateja Ploj Virtic

In recent decades, the development of sciences and technologies had a significant impact in society. This impact has been object of analysis from several standpoints, i.e., scientific, communication, historical and anthropological. Consequently, serious changes were required by the society. One of…

Foundations of Science, 2020, 30 p. ⟨10.1007/s10699-020-09662-4⟩. ⟨hal-03321533⟩

Article dans une revue

Controllable skyrmion chirality in ferroelectrics

Yu Tikhonov, S. Kondovych, J. Mangeri, M. Pavlenko, L. Baudry, A. Sene, A. Galda, S. Nakhmanson, O. Heinonen, A. Razumnaya, I Luk'Yanchuk, V. M. Vinokur

Chirality, an intrinsic handedness, is one of the most intriguing fundamental phenomena in nature. Materials composed of chiral molecules find broad applications in areas ranging from nonlinear optics and spintronics to biology and pharmaceuticals. However, chirality is usually an invariable…

Scientific Reports, 2020, 10 (1), pp.8657. ⟨10.1038/s41598-020-65291-8⟩. ⟨hal-03321562⟩

Communication dans un congrès

Effects of the electrical limit conditions on the electromechanical behavior of piezoelectric transducer arrays

Abdelmajid Bybi, Adil Ammar, Mohammed Garoum, Sébastien Grondel, Ahmed Mzerd, Anne-Christine Hladky

Crosstalk is an undesirable phenomenon having a negative impact on the electroacoustic performance of ultrasonic transducer arrays, utilized in medical imaging and NDT applications. Indeed, when one element of a transducer array is excited, it generates parasitic voltages and/or displacement fields…

4th International Conference on Electrical and Information Technologies, ICEIT 2020, Mar 2020, Rabat, Morocco. pp.1-6, ⟨10.1109/ICEIT48248.2020.9113231⟩. ⟨hal-03209107⟩

Article dans une revue

L'infini au cours des siècles

Stefano Giordano, Manon Benedito

The fascinating history of the concept of infinity is indissolubly associated with the development of religions, philosophies, mathematics and natural sciences. At the time of the first Greek philosophers, the infinity, or áperion, was a negative concept to be avoided in all rigorous statements.…

K. Revue trans-européenne de philosophie et arts, 2020. ⟨hal-02947970⟩

Article dans une revue

Active control of the transmission of Lamb waves through an elastic metamaterial

W. Wang, B. Bonello, Bahram Djafari-Rouhani, X. Fang, Yan Pennec, J. Zhao, Y. Jin

We have numerically investigated the transmission of an antisymmetric Lamb wave through a line of silicon pillars erected onto a homogeneous silicon plate when the frequency is tuned to a resonant frequency of the pillars. For either a bending mode or a compressional mode, the resonators emit in…

Journal of Applied Physics, 2020, 128 (6), pp.065107. ⟨10.1063/5.0017526⟩. ⟨hal-02924674⟩