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Affichage de 3291 à 3300 sur 16175

  • Thèse

Contribution of alginate nanoparticles to the multifunction of antimicrobial peptides, example of the class IIb bacteriocin Enterocin DD14, Apport des Nanoparticules d'alginate à la multifonction des peptides antimicrobiens, exemple de la bactériocine de classe IIb Entérocine DD14

Hassan Zgheib

In this PhD project, we used alginate nanoparticles as carriers of a leaderless two-peptide bacteriocin, the enterocin14designed EntDD14. This bacteriocin, previously isolated from Enterococcus faecalis 14 strain, was characterized for its potent anti-bacterial activity against a set of Gram-…, Dans ce projet de thèse, nous avons évalué l’apport des nanoparticules d’alginate sur la multifonction des bactériocines, en particulier l’entérocine DD14 (EntDD14). Cette bactériocine à deux peptides sans séquence leader, appartenant donc à la calsse IIb, a été caractérisée pour son activité…

Biochemistry, Molecular Biology. Université de Lille, 2020. English. ⟨NNT : 2020LILUI079⟩. ⟨tel-04514299⟩

  • Pré-publication, Document de travail

Physical and electrical characterization of bubble free transferred single crystal graphene

Soukaina Ben Salk, Reetu Raj Pandey, Phi Hq Pham, Di Zhou, Dominique Vignaud, Emiliano Pallecchi, Peter Burke, Henri Happy

Monocrystalline graphene is desirable for practical applications since the large-scale polycrystalline graphene grown by chemical vapor deposition is limited in terms of performance. The transfer of graphene film from the metallic growth substrate to a host substrate, which is generally required…

2020. ⟨hal-03079483⟩

  • Article dans une revue

Unusual swelling of acrylate based crosslinked polymer networks in linear primary alcohols: Experimental and modeling aspects

Sofiane Bedjaoui, Lamia Bedjaoui, Mohammed-El-Amine Benbekeda, Frédéric Dubois, Dounya Merah, Philippe Supiot, Corinne Foissac, Ulrich Maschke

The present investigation focuses on analysis of swelling behavior of systems composed of linear primary alcohols and photo-chemically crosslinked poly (butyl prop-2-enoate) (PABu). For this purpose, reactive blends composed of monofunctional (n-ABu) and difunctional (1-prop-2-enoyloxyhexyl prop-2-…

Journal of Molecular Liquids, 2020, 320 (Part B), pp.114459. ⟨10.1016/j.molliq.2020.114459⟩. ⟨hal-03104372⟩

  • Article dans une revue

Electrochemical, theoretical and surface physicochemical studies of the alkaline copper corrosion inhibition by newly synthesized molecular complexes of benzenediamine and tetraamine with π acceptor

Mohamed M. Ibrahim, Gaber A. M. Mersal, Ahmed M. Fallatah, Murat Saracoglu, Fatma Kandemirli, Sarah Alharthi, Sabine Szunerits, Rabah Boukherroub, Jacek Ryl, Mohammed A. Amin

Two charge transfer complexes, namely [(BDAH)(+)(PA(-))] CT1 [(BTAH)(2+) (PA(-))(2)] and CT2 (BDAH = 1,2-benzenediamine, BTAH = 1,2,4,5-benzenetetramine, and PA(-) = 2,4,6-trinitrophenolate), were synthesized and fully characterized using various spectroscopic techniques. CT1 and CT2 were tested as…

Journal of Molecular Liquids, 2020, 320, 114386, 17 p. ⟨10.1016/j.molliq.2020.114386⟩. ⟨hal-03321522⟩

  • Chapitre d'ouvrage

An Ultra-low-Power Integrated Heartbeat Detector for Wearable Sensors

Antoine Gautier, Marine Dael, Robin Benarrouch, Benoit Larras, Antoine Frappé

To optimize energy consumption in wearable sensor networks, an efficient scheme is to set the sensors in sleep mode and wake them up to engage communication. However, synchronicity between the sensors needs to be assured by always-on local oscillators. This work proposes a different topology that…

Body Area Networks. Smart IoT and Big Data for Intelligent Health, 330, Springer International Publishing, pp.199-211, 2020, Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, ISBN 978-3-030-64990-6 ; eISBN 978-3-030-64991-3. ⟨10.1007/978-3-030-64991-3_14⟩. ⟨hal-03377030⟩

  • Thèse

Filtres acousto-optiques accordables à sélection de polarisation pour l'imagerie hyperspectrale, Acousto-optic tunable filter with polarization selection for hyperspectral imaging

Justine Champagne

L’imagerie hyperspectrale et de polarimétrie est un domaine en plein essor qui présente de nombreuses applications. Ce contexte pousse à améliorer sans cesse les filtres, notamment en termes de résolution spectrale. Il est utile par exemple d’augmenter le nombre de bandes spectrales et leurs…, Hyperspectral and polarimetric imaging shows numerous applications and is rapidly developing. This context encourages continuous improvement of filters, particularly for the spectral resolution. For instance, it can be useful to increase the number of spectral bands and reduce the spectral…

Optique / photonique. Université Polytechnique Hauts-de-France, 2020. Français. ⟨NNT : 2020UPHF0033⟩. ⟨tel-03229217⟩

  • Thèse

Surface plasmon resonance based biosensor applied to phytosanitary domain, Utilisation de la résonance plasmonique de surface pour la réalisation de capteurs appliqués au domaine phytosanitaire

Sivaramakrishnan Ganesan

The overall goal of this study was to develop a portable biological detection system with high sensitivity, accuracy and repeatability to be used in either the phytosanitary or the medical domain. This system is based on the Surface Plasmon Resonance (SPR) physical principle. Such a use of this…, Mon travail de thèse s'inscrivait dans celui, plus général, de développement d'un système de détection biologique portable affichant sensibilité, précision et répétabilité et dont le champ d'applications visait les domaines médicaux et phytosanitaires. Ce système est basé sur le…

Micro and nanotechnologies/Microelectronics. Université de Lille, 2020. English. ⟨NNT : 2020LILUI059⟩. ⟨tel-03622687⟩

  • Communication dans un congrès

Ensemble extreme learning machine based equalizers for OFDM systems

Michel Saideh, Eric Pierre Simon, Joumana Farah, Jonathan Villain, Anthony Fleury, Virginie Deniau, Christophe Gransart

Extreme Learning Machine (ELM) technology has started gaining interest in the channel estimation and equalization aspects of wireless communications systems. This is due to its fast training and global optimization capabilities that might allow the ELM-based receivers to be deployed in an online…

2020 14th International Conference on Signal Processing and Communication Systems (ICSPCS), Dec 2020, Adelaide (en ligne), Australia. pp.1-6, ⟨10.1109/icspcs50536.2020.9310047⟩. ⟨hal-03213651⟩

  • Communication dans un congrès

On the Sum Rate of MCM-Based NOMA and MCM-Based OMA Systems

Yamen Alsaba, Michel Saideh, Iyad Dayoub, Marion Berbineau

In this paper, we report on the performance of different Multi-Carrier Modulation (MCM) techniques combined with both Non-Orthogonal Multiple Access (NOMA) and the conventional Orthogonal Multiple Access (OMA) systems. MCM-NOMA and MCM-OMA systems are analyzed in terms of efficient sum rate in…

2020 14th International Conference on Signal Processing and Communication Systems (ICSPCS), Dec 2020, Adelaide, Australia. pp.1-5, ⟨10.1109/ICSPCS50536.2020.9310001⟩. ⟨hal-03382843⟩

  • Thèse

Hybrid perovskite materials : characterization of their electrical properties and stability at the nanoscale, Matériaux pérovskites hybrides : caractérisation des propriétés électroniques et stabilité à l’échelle nanométrique

Jaume Llàcer Martínez

Global warming is one of the main concerns in our society nowadays, year after year the impact and consequences are becoming more visible. The Paris agreement set a target to limit the CO2 emission, which is mainly caused from the increasing demand for energy based on fossil fuels. Since then, the…, Le réchauffement climatique constitue aujourd'hui une des principales préoccupations de notre société. Année après année, son impact et ses conséquences sont de plus en plus visibles. L'accord de Paris a fixé pour objectif de limiter les émissions de CO2, principalement issues de la…

Micro and nanotechnologies/Microelectronics. Université de Lille; Université de Mons (Belgique), 2020. English. ⟨NNT : 2020LILUI062⟩. ⟨tel-03622471⟩