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Affichage de 4831 à 4840 sur 16174

Article dans une revue

Atmospheric pressure plasma spraying of silane-based coatings targeting whey protein fouling and bacterial adhesion management

Sawsen Zouaghi, Thierry Six, Séverine Bellayer, Yannick Coffinier, Marwan Abdallah, Nour-Eddine Chihib, Christophe Andre, Guillaume Delaplace, Maude Jimenez

This work aims at studying the impact of silane-based coatings, generated by atmospheric pressure plasma spraying (APPS) of a liquid precursor (hexamethydisiloxane – HMDSO), on dairy antifouling and antibacterial properties of food-grade 316L stainless steel. The influence of the manufacturing...

Applied Surface Science, 2018, 455, pp.392-402. ⟨10.1016/j.apsusc.2018.06.006⟩. ⟨hal-02321911⟩

Article dans une revue

UWB radar recognition system based on HOS and SVMs

Rahmad Sadli, Charles Tatkeu, Khadija Hamidoun, Yassin El Hillali, Atika Rivenq

This study proposes an original ultra-wideband short-range radar (UWB-SRR) recognition system based on higher-order statistics (HOS) and support vector machines (SVMs). The main purpose of this work is to improve the road safety by implementing these techniques for detection and recognition of the...

IET Radar Sonar and Navigation, 2018, 12 (10), pp.1137-1145. ⟨10.1049/iet-rsn.2018.5065⟩. ⟨hal-03185612⟩

Article dans une revue

Performance of the structure AlxGa1-xAs1-yNy/Ge for solar cell applications

Wafa Bellil, Abdelkader Aissat, Jean-Pierre Vilcot

The aim of this modeling and simulation is to study the influence of the incorporation of nitrogen (N) and aluminum (Al) on the optoelectronic properties of the structure AlxGa1-xAs1-yNy/Ge, and then choose the right combination (N, Al) which gives us a better conversational efficiency of the...

Optik, 2018, 171, pp.803-808. ⟨10.1016/j.ijleo.2018.06.142⟩. ⟨hal-02409504⟩

Article dans une revue

Chemical nature of the anion antisite in dilute phosphide GaAs1−xPx alloy grown at low temperature

T. Demonchaux, K. K. Sossoe, M. M. Dzagli, J. P. Nys, Maxime Berthe, David Troadec, A. Addad, M. Veillerot, G. Patriarche, H. J. Von Bardeleben, M. Schnedler, Christophe Coinon, Isabelle Lefebvre, M. A. Mohou, D. Stievenard, Jean-Francois Lampin, Ph. Ebert, X. Wallart, B. Grandidier

While nonstoichiometric binary III-V compounds are known to contain group-V antisites, the growth of ternary alloys consisting of two group-V elements might give additional degrees of freedom in the chemical nature of these antisites. Using cross-sectional scanning tunneling microscopy (STM), we...

Physical Review Materials, 2018, 2 (10), pp.104601. ⟨10.1103/PhysRevMaterials.2.104601⟩. ⟨hal-01912292⟩

Article dans une revue

Enhanced antibacterial activity of carbon dots functionalized with ampicillin combined with visible light triggered photodynamic effects

Roxana Jijie, Alexandre Barras, Julie Bouckaert, Nicoleta Dumitrascu, Sabine Szunerits, Rabah Boukherroub

In the last years, carbon-based nanomaterials have attracted considerable attention in a wide range of fields, particularly in biomedicine, owing to their remarkable photo-physical and chemical properties. In this study, we demonstrate that amine-terminated carbon dots (CDs-NH2) functionalized with...

Colloids and Surfaces B: Biointerfaces, 2018, 170, pp.347 - 354. ⟨10.1016/j.colsurfb.2018.06.040⟩. ⟨hal-01925065⟩

Article dans une revue

On the occurrence of size effects in the calculation of thermal conductivity by first-principles molecular dynamics: The case of glassy GeTe4

Évelyne Martin, Pier Luca Palla, Fabrizio Cleri, Assil Bouzid, Guido Ori, Sébastien Le Roux, Mauro Boero, Carlo Massobrio

The thermal conductivity of a glass can be obtained by first-principles molecular dynamics provided we exploit a methodology that has been termed the approach-to-equilibrium molecular dynamics (AEMD) [1] [2, Chap. 8]. In the present work, we investigate the occurrence of size effects by comparing...

Journal of Non-Crystalline Solids, 2018, 498, pp.190-193. ⟨10.1016/j.jnoncrysol.2018.05.014⟩. ⟨hal-02128447⟩

Article dans une revue

Automatic modulation classification for D-STBC cooperative relaying networks

Hakim Tayakout, Iyad Dayoub, Khalida Ghanem, Hicham Bousbia-Salah

Automatic modulation classification (AMC) has been used as a crucial component to improve the overall performance in cognitive radio system, thereby allowing any user to promote secure and reliable communication. In this letter, we propose a semi-blind AMC approach based on a simplified distributed...

IEEE Wireless Communications Letters, 2018, 7 (5), pp.780-783. ⟨10.1109/LWC.2018.2824813⟩. ⟨hal-03117867⟩

Article dans une revue

Enhanced photovoltaic performance of inverted polymer solar cells through atomic layer deposited $Al_{2}$$O_{3}$ passivation of ZnO-nanoparticle buffer layer

Bin Wei, Zhenyu Tang, Shuanglong Wang, Cunping Qin, Chunya Li, D Ding, Yulai Gao, X. Portier, F. Gourbilleau, D. Stievenard, Tao Xu

In this work, an atomic layer deposited (ALD) $Al_{2}$$O_{3}$ ultrathin layer was introduced to passivate the ZnO-nanoparticle (NP) buffer layer of inverted polymer solar cells (PSCs) based on P3HT:PCBM. The surface morphology of the ZnO-NP/$Al_{2}$$O_{3}$ interface was systematically analyzed by...

Nanotechnology, 2018, 29 (39), ⟨10.1088/1361-6528/aad131⟩. ⟨hal-01873058⟩

Pré-publication, Document de travail

Highly confined Love waves modes by defect states in a holey SiO2 /quartz phononic crystal

Yuxin Liu, Abdelkrim Talbi, Philippe Pernod, Olivier Bou Matar

Highly confined Love modes are demonstrated in a phononic crystal based on a square array of etched holes in SiO 2 deposited on the ST-cut quartz. An optimal choice of the geometrical parameters contributes to a wide stop-band for shear waves' modes. The introduction of a defect by removing...

2018. ⟨hal-01883641⟩

Thèse

Structure électronique et propriétés de réseaux cohérents de nanocristaux semi-conducteurs, Electronic structure and properties of coherent superlattices of semiconductor nanocrystals

Athmane Tadjine

La nanostructuration de matériaux semi-conducteurs permet de modifier le comportement des porteurs de charge. Ces modifications sont causées par les effets de confinement quantique. Dans cette thèse, nous étudions par des approches théoriques (numériques et analytiques) les propriétés de réseaux..., Semiconductor nanostructuration methods are a new route leading to the tuning of charge carriers behavior. This tuning is a direct consequence of the quantum confinement effect. In this thesis, we study using numerical and analytical approaches the properties of coherent superlattices of...

Micro et nanotechnologies/Microélectronique. Université de Lille, 2018. Français. ⟨NNT : 2018LILUI043⟩. ⟨tel-03028759v2⟩