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Synthesis, Characterization and Biological Activity Evaluation of Schiff Bases Derived from 1,8-Diaminonaphtalène

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Open Journal of Physical Chemistry 2023年第2期13卷 29-37页

作者： Niameke jean Baptiste Kangah Nanou Tiéba Tuo Daouda Ballo Ahmont Landry Claude kablan N’goran Etienne Kouame Charles Guillaume Kodjo Nahossé Ziao Laboratoire de Thermodynamique et de Physico-Chimie du Milieu UFR SFA Universite Nangui Abrogoua Abidjan C&ocircte d’Ivoire Laboratoire de Chimie Organique Heterocyclique URAC 21 Pole de Competence Pharmacochimie Faculte des Sciences Universite’ Mohammed V Rabat Morocco Laboratoire de Constitution et Reaction de la Matiere (LCRM) UFR Sciences des Structures de la Matiere et Technologie Universite Felix Houphouet-Boigny Abidjan C&ocircte d’Ivoire UFR Des Sciences Biologiques Universite Peleforo Gon Coulibaly de Korhogo Korhogo C&ocircte d’Ivoire

The compounds have been synthesized and characterized by routine MS, IR and NMR spectrometry methods. The compounds are all active on bacterial strains with the exception of Salmonella typhimirium, with a MIC value of 7.5 mg/mL. They show a percentage of anti-radical activity of 75.476 ± 5.070 for the compound DAN-S and of 68.142 ± 6.539 for the compound DAN-OV. The compounds are sensitive to the two champions used. DAN-S compound is then the most active.

关键词： Schiff Base Spectrometry Antioxidant Antimicrobial Activity Inhibition 1 8-Diaminonaphthalene

Automatic removal of eye movement artifacts from the EEG using ICA and the dipole model

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Progress in Natural Science:Materials International 2009年第9期19卷 1165-1170页

作者： jean Gotman Montreal Neurological Institute McGill University

In this study, we proposed and evaluated the use of Independent Component Analysis (ICA) combining the EEG dipole model to automatically remove eye movement artifacts from the EEG without needing EOG as a reference. We separated the EEG data into independent components using the ICA method, and determined the source localization of these independent components with a single dipole model. The EEG signal was reconstructed by automatically excluding those components localized within a preset eye model. EEGs from 12 patients were analyzed. The experimental results indicate that ICA with the dipole model is very efficient at automatically subtracting the eye movement artifacts, while retaining the EEG slow waves and making their interpretation easier.

关键词： Independent Component Analysis (ICA) Dipole model Artifact EEG

Contribution of different granulometric populations to powder reactivity

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Particuology 2009年第1期7卷 39-44页

作者： jean-Charles Benezet Ali Benhassaine Ecole des Mines d’Alès 6 Avenue de Clavieres 30319 ALES CedexFrance Ecole des Mines d’Alès 6 Avenue de Clavieres 30319 ALES CedexFrance

In this article, different population contributions of quartz powders to chemical reactivity in pozzolanic reaction were studied. Deconvolution software was used to show the different particle populations of each product. Reaction of quartz powder with lime in the pozzolanic reaction at 20 ℃ shows that reactivity of each powder population depends on its particle size. Adsorbed fine particles on coarse particle surfaces have a significant role in the first term of the reaction. In a second term, the micropowders react. The mesopowders react only in the last reaction terms. Until now, the reactivity of adsorbed powder has been attributed to amorphization of the particle surface.

关键词： Quartz population Reaction rate Curve deconvolution Powder granulometry Specific surface area

Review on signal-by-wire and power-by-wire actuation for more electric aircraft

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Chinese Journal of Aeronautics 2017年第3期30卷 857-870页

作者： jean-Charles MAR Jian FU Institut National des Sciences Appliquees Institut Clement Ader (CNRS UMR 5312) Toulouse 31077 France School of Mechanical Engineering and Automation Beihang University Beijing 100083 China

The huge and rapid progress in electric drives offers new opportunities to improve the performances of aircraft at all levels：fuel burn,environmental footprint,safety,integration and production,serviceability,and *** for safety-critical applications like flight-controls,landing gears,and even engines is one of the major consumers of non-propulsive *** actuation with centralized hydraulic power generation and distribution and control of power by throttling has been well established for decades,but offers a limited potential of *** this context,electric drives become more and more attractive to remove the natural drawbacks of conventional actuation and to offer new opportunities for improving *** paper takes the stock,at both the signal and power levels,of the evolution of actuation for safety-critical applications in *** focuses on the recent advances and the remaining challenges to be taken toward full electrical actuation for commercial and military aircraft,helicopters,and *** logically starts by emphasizing the specificity of safety-critical actuation for *** following section addresses in details the evolution of aerospace actuation from mechanically-signaled and hydraulically-supplied to all electric,with special emphasis on research and development programs and on solutions entered into ***,the last section reviews the challenges to be taken to generalize the use of all-electric actuators for future aircraft programs.

关键词： Actuator Aerospace Electrohydrostatic Electromechanical Hydraulic More electric aircraft Power-by-wire Signal-by-wire

Lanthanide-doped nanoscintillators

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Light(Science & Applications) 2022年第10期11卷 2264-2266页

作者： jean-Claude Georges Bünzli institute of Chemical Sciences and Engineering Swiss Federal Institute of TechnologyLausanne(EPFL)LausanneSwitzerland Department of Biomedical Engineering Southern University of Science and Technology(SUSTech)ShenzhenChina

Lanthanide-doped nanoscintillators are taking the lead in several important fields including radiation detection,biomedicine,both at the level of diagnosis and therapy,and information encoding.

关键词： diagnosis Lanthanide ill

Automatic Structure Determination of Organic Molecules: Principle and Implementation of the LSD Program

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Chinese Journal of Chemistry 2003年第10期21卷 1263-1267页

作者： NUZILLARD jean-Marc Pharmacognosy Laboratory

The LSD (Logic for Structure Determination) program generates organicmolecular structures from 1D and 2D NMR data without resorting to chemical shift databases. Its usein the resolution of natural product structure determination problems has been already reported inthe literature. This paper describes how data and structures are internally represented andprocessed by LSD to build solution structures.

关键词： structure elucidation nuclear magnetic resonance correlation spectroscopy

Foreword to the special section on synchronous programming

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Frontiers of Computer Science 2013年第5期7卷 595-597页

作者： jean-Pierre TALPIN INRIA Rennes-Bretagne-Atlantique Rennes 35042 France

1 Introduction Embedded systems are ubiquitous. In applications ranging from avionics, automotive, and industrial process control all the way to the handheld personal digital assistants （PDAs）, cell phones, and bio-...

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Developing molecular-level models for organic field-effect transistors

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National Science Review 2021年第4期8卷 167-180页

作者： Haoyuan Li jean-Luc Brédas School of Chemistry and Biochemistry and Center for Organic Photonics and Electronics Georgia Institute of Technology Department of Chemistry and Biochemistry University of Arizona

Organic field-effect transistors(OFETs) are not only functional devices but also represent an important tool for measuring the charge-transport properties of organic semiconductors(OSs). Thus, efforts to understand the performance and characteristics of OFET devices are not only useful in helping achieve higher device efficiencies but also critical to ensuring accuracy in the evaluations of OS charge *** studies rely on OFET device models, which connect the measured current characteristics to the properties of the OSs. Developing such OFET models requires good knowledge of the charge-transport processes in OSs. In device active layers, the OS thin films are either amorphous(e.g. in organic light-emitting diodes and organic solar cells) or crystalline(e.g. those optimized for charge transport in OFETs). When the electronic couplings between adjacent OS molecules or polymer chain segments are weak, the charge-transport mechanism is dominated by hopping processes, which is the context in which we frame the discussion in this Review. Factors such as disorder, mobility anisotropy, traps, grain boundaries or film morphology all impact charge transport. To take these features fully into account in an OFET device model requires considering a nano-scale, molecular-level resolution. Here, we discuss the recent development of such molecular-resolution OFET models based on a kinetic Monte Carlo approach relevant to the hopping regime. We also briefly describe the applicability of these models to high-mobility OFETs,where we underline the need to extend them to incorporate aspects related to charge delocalization.

关键词： organic semiconductors charge transport kinetic Monte Carlo simulations mobility measurements gradual channel approximation

Multi-source information fusion:Progress and future

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Chinese Journal of Aeronautics 2024年第7期37卷 24-58页

作者： Xinde LI Fir DUNKIN jean DEZERT School of Automation Southeast UniversityNanjing 210008China Nanjing Center for Applied Mathematics Nanjing 211135China Key Laboratory of Measurement and Control of CSE Ministry of EducationNanjing 210096China Southeast University Shenzhen Research Institute Shenzhen 518063China Information Modeling and Processing Department ONERAPalaiseau 92320France

Multi-Source Information Fusion(MSIF),as a comprehensive interdisciplinary field based on modern information technology,has gained significant research value and extensive application prospects in various domains,attracting high attention and interest from scholars,engineering experts,and practitioners *** achieving fruitful results in both theoretical and applied aspects over the past five decades,there remains a lack of comprehensive and systematic review articles that provide an overview of recent development in *** light of this,this paper aims to assist researchers and individuals interested in gaining a quick understanding of the relevant theoretical techniques and development trends in MSIF,which conducts a statistical analysis of academic reports and related application achievements in the field of MSIF over the past two decades,and provides a brief overview of the relevant theories,methodologies,and application domains,as well as key issues and challenges currently ***,an analysis and outlook on the future development directions of MSIF are presented.

关键词： Multi-sensor system Information fusion Artificial intelligence Pattern recognition Human-machine integration