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Raman scattering study of the phonon dispersion in twisted bilayer graphene

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Nano Research 2013年第4期6卷 269-274页

作者： Jessica Campos-Delgado Luiz G. Cangado Carlos A. Achete Ado Jorio jean-pierre Raskin Institute of Information and Communication Technologies Electronics andApplied Mathematics (ICTEAM) Universite catholique de Louvain Louvain-la-Neuve 1348 Belgium Departamento de Fisica Universidade Federal de Minas Gerais Belo Hofizonte MG 30123-970 Brazil Divisao de Metrologia de Materiais Instituto Nacional de Metrologia Qua/Made e Tecnologia (INMETRO) Xerem RJ 25250-020 Brazil

Bilayer graphene with a twist angle O between the layers generates a superlattice structure known as a Moir6 pattern. This superlattice provides a O-dependent q wavevector that activates phonons in the interior of the Brillouin zone. Here we show that this superlattice-induced Raman scattering can be used to probe the phonon dispersion in twisted bilayer graphene （tBLG）. The effect reported here is different from the widely studied double-resonance in graphene-related materials in many aspects, and despite the absence of stacking order in tBLG, layer breathing vibrations （namely ZO＇ phonons） are observed.

关键词： twisted bilayer graphene Raman spectroscopy phonon branches

Early local intracoronary platelet activation after drug-eluting stent placement

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Chinese Medical Journal 2007年第22期120卷 1986-1991页

作者： Ailiman Mahemuti Nicolas Meneveau Marie-France Seronde FrancoisSchiele Mariette Mercier Evelyne Racadotand jean-pierre Bassand Department of Cardiology First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054Xinjiang Uygur Autonomous RegionChina Department of Biostatistics and Epidemiology Faculty of Medecine and PharmacyUniversity of Franche-Comte Medical SchoolBesanconFrance Hemostasis Laboratory French Blood Products InstitutionBesanconFrance

Background Early local platelet activation after coronary intervention identifies patients at increased risk of acute stent thrombosis （AST）. However, early changes in platelet activation in coronary circulation following drug-eluting stent （DES） implantation have never been reported. Methods In a prospective study of 26 consecutive elective stable angina patients, platelet activation was analyzed by measuring soluble glycoprotein V （sGPV） and P-selectin （CD62P） before and after implantation of either DES or bare metal stent （BMS）. All patients were pretreated with clopidogrel （300 mg loading dose） and aspirin （75 mg orally） the day before the procedure. Blood samples were drawn from the coronary ostium and 10 - 20 mm distal to the lesion site. Results Consistent with the lower baseline clinical risk, the levels of CD62P and sGPV were within normal reference range, both in the coronary ostium and distal to the lesion before percutaneous coronary intervention （PCI） procedure. The levels of CD62P and sGPV did not change significantly （CD62P：（31.1 ± 9.86） ng/ml vs （29.5 ± 9.02） ng/ml, P=0.319 and sGPV：（52.4 ± 13.5） ng/ml vs （51.8 ± 11.7） ng/ml, P=0.674, respectively） after stent implantation when compared with baseline. Changes in these platelet activation markers did not differ between stent types. Conclusions Intracoronary local platelet activation does not occur in stable angina patients before and immediately followina DES implantation when dual anti-Dlatelet is administered.

关键词： stents platelet activation thrombosis P-selectin soluble glycoprotein V

Computation of the atmosphere-less light intensity curve during a total solar eclipse by using Lunar Reconnaissance Orbiter topography data and the DE430 astronomical ephemeris

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Research in Astronomy and Astrophysics 2021年第1期21卷 105-118页

作者： Yun-Bo Wang Jian-Guo Yan Mao Ye Yong-Zhang Yang Fei Li jean-pierre Barriot State Key Laboratory of InformationEngineering in Surveying Mapping and Remote SensingWuhan UniversityWuhan 430079China Geodesy Observatory of Tahiti University of French PolynesiaBP 657098702 FaaTahitiFrench Polynesia Key Laboratory of Lunar and Deep Space Exploration National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China

Observations of the sky irradiation intensity in the visible wavelengths during a solar eclipse permit to model the Sun diameter,a key number to constrain the internal structure of our *** this paper,we present an algorithm that takes advantage of the precise Moon topography from Lunar Reconnaissance Orbiter to compute,with a high resolution in time,the geometrical part(***-of-atmosphere,and for a given wavelength)of the sky irradiation at any given location on the Earth during these *** algorithm is also able to model the Baily’s *** give as an application the theoretical computation of the light curve corresponding to the solar eclipse observed at Lakeland(Queensland,North Australia)on 2012 November *** application to real data,with the introduction of atmospheric and instrumental passbands,will be considered in a forthcoming paper.

关键词： eclipse Moon Sun:fundamental parameters

A HEURISTIC PATH-PLANNING METHOD FOR ENHANCING MACHINE-TOOL CONTOUR-FOLLOWING

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Journal of Systems Science and Systems Engineering 2005年第1期14卷 85-96页

作者： pierre-jean BARRE jean-Yves DIEULOT Richard BEAREE Ahmed BOUZIDI Technological Research Team–ERT CEMODYNE L2EPENSAM 8 Avenue Louis XIV 59046 Lille cedex France

The machine-tools performances within the framework of high-speed machining both depend on the design of the reference trajectory and on the tuning of the servo controllers. The reduction of the contouring error can be achieved by adapting the feedrate to the path profile. An alternative method consists of smoothing the spatial trajectory that allows to decrease the cycle time. A path smoothing technique is provided, which uses an analogy with racing-car piloting. The trajectory is modified pointwise according to a set of rules and is designed using fuzzy control.

关键词： Contour error axis control path planning fuzzy control

Insights into restrictive cardiomyopathy from clinical and animal studies

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Journal of Geriatric Cardiology 2011年第3期8卷 168-183页

作者： pierre-Yves jean-Charles Yue-Jin Li Chang-Long Nan Xu-Pei Huang Department of Biomedical Science College of Medicine Florida Atlantic University 777 Glades Road Boca Raton FL 33431 USA

Cardiomyopathies are diseases that primarily affect the myocardium, leading to serious cardiac dysfunction and heart failure. Out of the three major categories of cardiomyopathies （hypertrophic, dilated and restrictive）, restrictive cardiomyopathy （RCM） is less common and also the least studied. However, the prognosis for RCM is poor as some patients dying in their childhood. The molecular mechanisms behind the disease development and progression are not very clear and the treatment of RCM is very difficult and often ineffective. In this article, we reviewed the recent progress in RCM research from the clinical studies and the translational studies done on diseased transgenic animal models. This will help for a better understanding of the mechanisms underlying the etiology and development of RCM and for the design of better treatments for the disease.

关键词： etiology myocardial gene mutation restrictive cardiomyopathy transgenic mice

Effect of Scanning Beam Profile to Fabricate Fused Fiber Tapers by CO_2 Laser Irradiation Method

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光学学报 2003年第S1期23卷 121-122页

作者： Bayle Fabien Luo Aiping Marin Emmanuel Meunier jean-pierre Laboratoire TSI UMR CNRS 5516 Saint Etienne FranceLaboratoire TSI UMR CNRS 5516 Saint Etienne FranceLaboratoire TSI UMR CNRS 5516 Saint Etienne FranceLaboratoire TSI UMR CNRS 5516 Saint Etienne France

Beam uniformity is a crucial building block of CO2 experiments aimed at fusing and stretching optical fibers in a lossless manner. When the irradiation beam is expanded through a galvanometer mirror, ways to achieve b... 详细信息

关键词： of in on as it by Effect of Scanning Beam Profile to Fabricate Fused Fiber Tapers by CO2 Laser Irradiation Method

Development of a Medium Voltage, High Power, High Frequency Four-Port Solid State Transformer

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CES Transactions on Electrical Machines and Systems 2022年第1期6卷 95-104页

作者： Ahmad El Shafei Saban Ozdemir Necmi Altin Garry jean-pierre Adel Nasiri IEEE Department of Electrical Engineering University of Wisconsin Milwaukee Department of Electrical-Electronic Engineering Faculty of TechnologyUniversity of Gazi Department of Electrical Engineering University of South Carolina

The power and voltage levels of renewable energy resources is growing with the evolution of the power electronics and switching module *** that,the need for the development of a compact and highly efficient solid-state transformer is becoming a critical task in-order to integrate the current AC grid with the new renewable energy *** objective of this paper is to present the design,implementation,and testing of a compact multi-port solid-state transformer for microgrid integration *** proposed system has a four-port transformer and four converters connected to the *** transformer has four windings integrated on a single common ***,it can integrate different renewable energy resources and energy storage *** port has a rated power of 25 kW,and the switching frequency is pushed to 50 k *** ports are chosen to represent a realistic industrial microgrid model consisting of grid,energy storage system,photovoltaic system,and *** grid port is designed to operate at 4.16 k VAC corresponding to 7.2 kV DC bus voltage,while the other three ports operate at 500 ***,the grid,energy storage and photovoltaic ports are active ports with dual active bridge topologies,while the load port is a passive port with full bridge rectifier *** proposed design is first validated with simulation results,and then the proposed transformer is implemented and *** results show that the designed system is suitable for 4.16 k VAC medium voltage grid integration.

关键词： Co-simulation high frequency high power medium voltage microgrid Multi-port solid state transformer

Multiple 2D approaches to human sexual dimorphism of the distal end of femur

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Zoological Systematics 2017年第1期42卷 108-122页

作者： Sitha Piyaselakul Bumpenporn Sanannam jean-pierre Dujardin Department of Anatomy Faculty of Medicine Siriraj Hospital Mahidol University Bangkoknoi Bangkok 10700 Thailand IRD UMR IRD-CIRAD INTERTRYP Campus international de Baillarguet Montpellier France

Various studies on the difference of distal femoral condyles between genders have been reported recently in order to provide anatomic information for knee prosthesis design and surgical planning in total knee arthroplasty. They also had the objective to be used as a sex recognition character, as may be needed in forensic medicine. Except for a recent 3D approach on the distal femur, most of the studies used dimensional information or aspect ratio but not shape. Our 2D study aimed to determine the size and shape variation of femoral condyles in Thais, considering age, sex and sides. One hundred and twenty-four cadaveric femurs （male 84 legs and female 40 legs） were dissected. The specimens were photographed by digital camera and images were analyzed using three geometric techniques：（i） the landmark-based method （5 landmarks）, （ii） with or without addition of 23 sliding semilandmark and （iii） the outline-based methods. From the resulting geometric coordinates, size and shape were extracted for comparisons between genders and sides. Between sides, directional asymmetry could be detected only for shape variation, and only when introducing curves in the analyses （either through the semilandmarks technique or through the outline-based one）. Non-directional asymmetry, probably fluctuating asymmetry, was detected for size, as well as for shape, in both genders. Sex discrimination was performed for each geometric technique using two classification methods： the Mahalanobis distance classification and the Maximum likelihood classification. The latter provided much more satisfactory gender validated reclassification （87%） than shape （72%）.

关键词： Distal femur landmarks outlines Mahalanobis Maximum likelihood.

Relationships between mucinous gastric carcinoma, MUC2 expression and survival

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World Journal of Gastroenterology 2006年第21期12卷 3324-3331页

作者： Emmanuelle Leteurtre Farid Zerimech Guillaume Piessen Agnès Wacrenier Xavier Leroy Marie-Christine Copin Christophe Mariette jean-pierre Aubert Nicole Porchet Marie-pierre Buisine INSERM U560 59045Lille cedexFrance Service d'Anatomie et Cytologie Pabologiques Pôle Biologie-Pathogie Pac Eurasanté.CHR-U de Lille59037 Lille cedexFrance Service de Biochimie et Biologie Moléculaire CHR-U de Lille59037 Lille cedexFrance Facultéde Médecine H.Warembourg 59045 Lille cedexFrance Service.de Chirurgie Digetive et Générale CAEB CHR-U de Lille59045 Lille cedexFrance

AIM:To investigate the expression of the four secreted gel-forming mucins(MUC2,MUCSAC,MUCSB and MUC6)in a series of gastric carcinomas,classified according Laurén's,Mulligan's,WHO and Goseki's classifications,with special attention to all the different components(major and minor)present in tumors and to follow up clinical ***:Expression of MUC2,MUC5AC,MUC5B and MUC6 was investigated using immunohistochemistry and in situ ***:Expression of secreted gel-forming mucins in gastric carcinoma was particularly complex,each mucin being not restricted to any histopathological type even considering all components(major and minor)present in a given *** was a worst survival in patients with a higher content of mucus(GosekiⅡorⅣ)and high positive MUC2 ***:Complexity of mucin gene expression patterns in gastric cancer may reflect a precise state of differentiation at the cell level not recognized in used morphologic classification *** expression of MUC2 was nevertheless associated with mucinous subtype of the WHO classification and with groupⅡof Goseki's classification identified by the major component of a particular *** quantity and quality of mucus were related to survival.

关键词： Gastric cancer Secreted gel-forming mucin MUC Immunohistochemistry in situ hybridization Survival