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Microsystems & Nanoengineering 2018年第1期4卷 128-140页

作者： Yingxian Lu Frédéric Marty Dimitri Galayko jean-marc laheurte Philippe Basset UniversitéParis-Est ESYCOM(EA2552)CNAMESIEE Paris and UPEMLVNoisyle-Grand 93162France Sorbonne Université LIP6 labCIAN groupJussieu campusParis 75005France UniversitéParis-Est ESYCOM(EA2552)CNAMESIEE Paris and UPEMLVMarne-la-Vallée 77420France

A MEMS electrostatic kinetic energy harvester(e-KEH)of about 1 cm2,working at ultralow frequency(1–20 Hz),without any supported additional mass on its mobile electrode,and working even without a vacuum environment is *** prototype is especially suitable for environments with abundant low frequency motions such as wearable *** proposed e-KEH consists of a capacitor with a finger-teeth interdigited comb *** greatly reduces the air damping effect,and thus the capacitance variation remains important regardless of the presence of *** the new design,the energy transduced per cycle of excitation is no less than 33 times higher than the classic design within 10–40 Hz/2 g_(peak),while is 85 times higher at 15 Hz/2 g_(peak).An enclosed miniature ball combined with non-linear stoppers enables the oscillation of the movable electrode through impact-based frequency up-conversion mechanism,which is also improved by the low air *** to this new design,a higher efficiency than the classic gap-closing comb structure is obtained,as a larger range of working frequency(1–180 Hz)in air.A maximum energy conversion of 450 nJ/cycle is obtained with a bias voltage of 45 V and an acceleration of 11 Hz,3 g_(peak).Working with a diode AC-DC rectifier,the proposed KEH is able to support up to 3 RFID communications within 16 s while operated at 11 Hz,3 g_(peak).

关键词： autonomous kinetic electrostatic

Embedded UHF RFID Tag for Durability Monitoring in Concrete

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Wireless Sensor Network 2016年第7期8卷 137-144页

作者： jean-marc laheurte Aladdin Kabalan Houssam Retima Eric Piedallu Fulvio Michelis Bérengère Lebental ESYCOM Université Paris-Est UPEMLV Marne-la-Vallée France Université Paris-Est IFSTTAR COSYS/LISIS Marne-la-Vallée France

This paper describes the design of a battery-assisted Ultra-High Frequency (UHF) Radio-Fre- quency IDentification (RFID) tag suitable for embedding in concrete materials and its measurement in a mortar slab. The device is built to communicate wirelessly not only the ID number of the RFID chip but also the digitalized output of a strain gauge sensor. Design optimizations of the RFID antenna is based on published permittivity and conductivity values of concrete. Experimental read ranges are measured from 800 to 1000 MHz with the help of commercial test equipment. Reading is possible up to 50 cm from the surface of a mortar block for a tag embedded 5 cm below the surface. This result is the first published one for RFID tags embedded in concrete or mortar.

关键词： UHF RFID Technologies Sensing RFID UHF Tag Antennas Concrete Monitoring

Bound and Resonating Multiquark Configurations

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Chinese Physics Letters 2024年第8期41卷 8-12页

作者： jean-marc Richard Institut de Physique des 2 Infinis de Lyon Université Claude Bernard(Lyon 1) CNRS-IN2P34 rue Enrico Fermi69622 VilleurbanneFrance

We review the predictions of quark models for multiquark configurations that are bound or resonant states,and compare different methods for estimating the properties of resonances.

关键词： quark Configuration resonant

Phase coexistence properties of liquid mercury:a simulation study

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Rare Metals 2006年第5期25卷 567-571页

作者： jean-Louis Bretonnet jean-marc Bomont Laboratoire de Physique des Milieux Denses Université Paul Verlaine1bd F.D.Arago57078 MetzCedex 3France

The thermophysical properties of expanded liquid mercury have been investigated along the liquid-vapor coexistence curve by using Monte Carlo and Molecular Dynamic simulations. For the purpose, an empirical state dependent interatomic potential for the region of dense metallic liquid is used, while the state dependence is not necessary near the cliffcal point. In order to test the validity of this potential, we determine the surface layering and the sound velocity, two properties very sensitive to the choice of the potential. Our results are in quite good agreement with other theoretical results and to the experimental data available in the literature.

关键词： mercury simulation phase coexistence liquid state

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

Generalized Backward Doubly Stochastic Differential Equations Driven by Lévy Processes with Continuous Coefficients

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Acta Mathematica Sinica,English Series 2012年第10期28卷 2011-2020页

作者： Auguste AMAN jean marc OWO UFR de Mathématiques et Informatique Université de Cocody

A new class of generalized backward doubly stochastic differential equations （GBDSDEs in short） driven by Teugels martingales associated with Levy process are investigated. We establish a comparison theorem which al... 详细信息

关键词： Backward doubly stochastic differential equations L@vy processes Teugels martingales comparison theorem continuous and linear growth conditions

Wear Behavior of a Bio-inspired Bearing for off-center Loads

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Journal of Bionic Engineering 2020年第6期17卷 1251-1262页

作者： Delphine Sysaykeo jean-marc Linares Emmanuel Mermoz Alix-Marseile Universite CNRSCentre National de la Recherche ScientifiqueISMInstitut des Sciences du MouvementMarseille 13009France Advanced concepts and Dynamic systems architecture department Airbus HelicoptersAeroport International Marseille ProvenceMarignane 13700France

Misalignment is one of the most common causes of wear in bush *** improvements have been proposed by many ***,it did not efficiently reduce the *** geometrical designs sometimes reach their *** this reason,a bio-inspired design is proposed to solve the *** this article,a bio-inspired bearing suited to misalignment was tested and compared to a classical bush *** contact pressures of both bearings were compared with static Finite Element(FE)simulations for off-center *** to the complex shape of the involved contact,the performances of both bearings were also studied over *** wear behaviors were predicted with a numerical *** methodologies emplaced to simulate the wear were described in this ***,the wear coefficient determination obtained by experimental testing was *** pressure value,the contact zone and the wear depth were compared and *** wear results for the classical bearing are in accordance with the *** simulations show a deeper wear on the classical bush bearing than on the bio-inspired *** leads to a longer period of service life for the bio-inspired bearing.

关键词： biologically inspired design bush bearing wear simulation

Joint Loading Estimation Method for Horse Forelimb High Jerk Locomotion:Jumping

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Journal of Bionic Engineering 2019年第4期16卷 674-685页

作者： Joanne Becker Mermoz Emmanuel Linares jean-marc Airbus Helicopters Aeroport de Marseille ProvenceMarignane 13700France Aix Marseille Univ CNRSISMInst Movement SciMarseille 13009France

Maximal local loads in animal joints are necessary to design bio-inspired mechanical *** studies presented methods to determine joint reaction forces in humans and ***,many of these methods are invasive,and no work has been published yet about the joint reaction forces in the horse forelimb during ***-invasive methods to measure the kinematics and ground reaction force of a horse forelimb were used in this work.A musculoskeletal model of horse forelimb was built with mechanical methods for the estimation of joint reaction *** entire forelimb was reconstructed by scanning real bones geometry with a 3D optical scanner and modeling all the muscles on a Computer Assisted Design(CAD)*** model dynamics were simulated with OpenSim in order to estimate the joint *** study allows knowing an order of magnitude of the loads at the joints at jumping in order to determine latter the maximal joint contact loading values that will be a key at designing bio-inspired joints for mechanical assemblies.

关键词： joint loading jumping kinematics modelling OpenSim

The structure of the human 4F2hc-LAT1 heteromeric amino acid transporter

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Science China(Life Sciences) 2019年第6期62卷 848-850页

作者： Dimitrios Fotiadis jean-marc Jeckelmann Institute of Biochemistry and Molecular Medicine and Swiss National Centre of Competence in Research (NCCR) TransCureUniversity of Bern

Amino acids are biologically important molecules that serve as energy source, building blocks of proteins, precursors for metabolites and signaling compounds in all living *** of proteinogenic amino acids and related substances across biological membranes is mediated by membrane embedded proteins:the amino acid transporters. These membrane proteins belong to different solute carrier (SLC)families (http://***) and transfer amino acids in and out between compartments inside cells, between different cells and between organs. Amino acid transporters have diverse important physiological functions and their absence, overexpression and malfunction can lead to human diseases.

关键词： Amino acids important molecules functions and their absence

Effect of Bifidobacterium longum 35624 on disease severity and quality of life in patients with irritable bowel syndrome

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World Journal of Gastroenterology 2022年第7期28卷 732-744页

作者： jean-marc Sabaté Franck Iglicki Department of Gastroenterology Hôpital AvicenneAP-HPSorbonne Paris NordBobigny 93000France INSERM U-987 Pathophysiology and Clinical Pharmacology of PainAmbroise ParéHospitalBoulogne-Billancourt 92100France allée Léon Gambetta Clichy 92110France

BACKGROUND Bifidobacterium longum 35624 has shown efficacy in improving irritable bowel syndrome(IBS)symptoms compared with placebo in double-blind randomized ***,few data are available from real-life clinical practice or from studies that used Rome IV criteria to diagnose *** To assess the effect of *** 35624 on IBS severity and quality of life in a reallife *** From November 2018 to January 2020,278 patients with IBS(according to Rome IV criteria)were enrolled in a prospective,open-label,multicenter observational study by private practice gastroenterologists to received one capsule of *** 35624(10^(9) colony-forming units)per day for 30 *** in the study was independently proposed to patients during spontaneous *** severity(assessed by the IBS severity scoring system)and patient quality of life(assessed by the IBS quality of life questionnaire)were compared between the inclusion visit(baseline)and the visit at the end of 30 d of *** characteristics of patients were described at *** variables comparisons between inclusion and end-of-treatment visits were performed using the t-test and Kruskal-Wallis *** variables comparisons were performed using theχ^(2) *** total of 233 patients,with a mean age of 51.4 years and composed of 71.2%women,were included in the *** these patients,48.1%had moderate IBS and 46.4%had severe *** a 30-d treatment period with one *** 35624 capsule per day,a significant decrease in IBS severity was observed compared to baseline(mean±SD,IBS severity scoring system scores:208±104 vs 303±81,P<0.001)and 57%of patients moved to lower severity categories or achieved *** quality of life of patients was also improved by the treatment(IBS Quality of Life questionnaire score:68.8±20.9 vs 60.2±20.5;P<0.001)and 63.8%of patients were satisfied with the *** Thirty days of treatment with *** 35624

关键词： Irritable bowel syndrome Probiotics Bifidobacterium longum Quality of life Severity of illness index Abdominal pain