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Recent advances in germanium emission[Invited]

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Photonics Research 2013年第3期1卷 102-109页

作者： P.Boucaud M.El Kurdi A.ghrib M.Prost M.de Kersauson S.Sauvage F.Aniel X.Checoury g.beaudoin L.Largeau I.Sagnes g.Ndong M.Chaigneau R.Ossikovski Institut d’Electronique Fondamentale CNRS-Univ.Paris Sud 11Bâtiment 220F-91405 OrsayFrance STMicroelectronics 850 rue Jean Monnet38920 CrollesFrance Laboratoire de Photonique et de Nanostructures CNRS-UPR 20Route de Nozay 91460 MarcoussisFrance Laboratoire de Physique des Interfaces et des Couches Minces CNRS-Ecole polytechniqueF-91128 PalaiseauFrance

The optical properties of germanium can be tailored by combining strain engineering and n-type *** this paper,we review the recent progress that has been reported in the study of germanium light emitters for silicon *** discuss the different approaches that were implemented for strain engineering and the issues associated with n-type *** show that compact germanium emitters can be obtained by processing germanium into tensile-strained microdisks.

关键词： emitter doping strained

YARLUNg ZANgBO OPHIOLITES,SOUTHERN TIBET REVISITED

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地学前缘 2000年第S1期7卷 124-126页

作者： Hébert Réjean 1, g.beaudoin 1,V.Varfalvy 1, F.Huot 2, Wang C.S. 3, Liu Z.F. 4(1 Département de géo logie et de génie géologique , Université Lav al,Ste\|Foy, Qc,Canada, g1K 7P4, E\|mail:hebert@ggl.ulaval.ca 2 Institut universitaire euro

Field work conducted in September 1998 and Summer 1999 aimed to reassess the ophiolitic segment of the Yarlung Zangbo suture zone (YZS) and shed new light on the preserved fragments of Neo\|Tethys ocean\|floor. This eastern ophiolitic segment was partly surveyed during the 1980 Sino\|French Cooperative Investigation of Himalayas, but little work has been done since that time. Progress in ophiolite research field and new developments in modern ocean crust guided us in the recent field work investigation. Mantle peridotites and associated minor crustal units are assumed Early Cretaceous in age, while diabase interbedded with phyllites and radiolarian sediments of presumed seamount origin are attributed to Late Jurassic—Early Cretaceous age. Six different massifs were visited that are from west to east: Jiding, Qunrang, Beimarang, Dazhuqu, Luobusa, and Zedang. Each massif presents specific characteristics summarized below. The Jiding massif is made of partly to totally serpentinized granular upper mantle harzburgites with orthopyroxenite banding, a transitional Moho zone, a thick diabase sill\|dike complex intruded into heterogeneous gabbro, and pillow lavas.. High\|temperature plastic foliation, although generally oriented NW—SE, and lineation show folding. Numerous gabbroic and diabasic intrusions are observed in peridotites. The orientations of the mafic rocks foliation and lineation do not fit the structure of the host peridotites. The 350m thick transition zone is a syntectonically intrusive sequence of mantle peridotites cut by abundant different types of gabbro and diabase. In one case intrusion of gabbro postdates serpentinization of peridotites and the outer margin of the xenolith enclosed in fine\|grained gabbro has reacted to form pegmatitic hornblende gabbro. The crustal unit is made of gabbro intruded by multiple fine\|grained dikes. Hydrothermal circulation was locally intense and Cu mineralization and epidosite are observed close to shear *** Qunra

关键词： Yarlung Zangbo Xigaze ophiolites mineral chemistry mantle heterogeneities

Flow fields and particle trajectories beneath a tidal bore:A numerical study

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International Journal of Sediment Research 2018年第3期33卷 351-370页

作者： Adrien Berchet Bruno Simon Anthony beaudoin Pierre Lubin germain Rousseaux Serge Huberson Institut Pprime Université de Bordeaux

Tidal bores may appear in some estuaries when the tides quickly reach a high level. This phenomenon is rare but has a strong impact during its short duration: i.e. the river bed is significantly eroded and sediments are then transported. In this paper, the trajectories of suspended particles induced by this flow are numerically studied. Four undular bores with Froude numbers between 1.1 and 1.2 are *** similar Froude numbers, various initial flow conditions were selected to produce or not an inversion of the flow direction during the bore passage. The particle trajectories associated with each distinct flow configuration are presented and analyzed. These trajectories, estimated by solving the Maxey-Riley equation, appear to be very different even though the Froude numbers of flows are *** observations are important because the Froude number is often used to characterize a tidal bore as it describes well the free surface, however, it cannot describe the sediment transport. Finally, Chen’s model of wave-current interactions is adapted to fit the cases studied and is applied to the four bores simulated. The results highlight that this latter model can reproduce the observed trajectories and dissociate their different components. From this model, it is shown that the inertial and Basset history effects can be neglected compared to the gravity and flow entrainment effects due to the viscous drag when one wants to determine the long-term trajectories of suspended particles.

关键词： Tidal bores Sediment transport Trajectories Physical modeling Numerical modeling

Control of the Colorado Potato Beetle, Leptinotarsa decemlineata （Say）, Using Predator Insects Released by a Mechanical Prototype

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Journal of Environmental Science and Engineering(A) 2012年第11期1卷 1279-1287页

作者： Saad Almady Mohamed Khelifi Marie-Pascale beaudoin Department of Soils and Agri-Food Engineering Universit~ Laval Quebec City QC G1 V OA 6 Canada Agricultural Engineering Department College of Food and Agriculture Sciences King Saud University Riyadh 11451 SaudiArabia Ministry of Agriculture Fisheries and Food of Quebec 801 chemin du Pont Tachd N Alma QC G8B 5W2 Canada

The CPB （Colorado potato beetle） is unquestionably the major insect pest of potato crops in North America, Europe, and Asia. The use of chemical insecticides to control this insect pest started in the 1860s. To date, no registered chemical has been capable of effectively managing this agricultural pest. Moreover, the CPB has developed over the years a resistance to most of the registered chemical insecticides. The biological control through manual release of natural enemies of the CPB has been successful at small scale. However, hand release of these predators at large scale is not realistic. The objective of this study was to investigate the effectiveness of controlling the CPB through mechanical release of predator insects under real conditions in a potato field. Obtained results indicate that the mechanical release of predator insects resulted in a better control of the CPB populations and egg masses than the manual release. The success of this mechanical release of predator insects in potato fields will be highly valuable for the biological control of insect pests in many other row crops such as strawberry, lettuce, etc..

关键词： Colorado potato beetle chemical insecticides biological control mechanical release natural enemies Perillusbioculatus Podisus maculiventris.

Nonlinear gallium phosphide nanoscale photonics[Invited]

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Photonics Research 2018年第5期6卷 I0068-I0074页

作者： AUDE MARTIN SYLVAIN COMBRIE ALFREDO DE ROSSI gREgOIRE beaudoin ISABELLE SAgNES FABRICE RAINERI Centre de Nanosciences et de Nanotechnologies CNRSUniversite Paris-SudUniversite Pans-SaclayC2N Marcoussis91460 MarcoussisFrance Thales Research and Technology France 1 avenue Augustin Fresnel91120 PalaiseauFrance Universite Paris Diderot Sorbone Paris Cite75013 ParisFrance

We introduce a nanoscale photonic platform based on gallium phosphide. Owing to the favorable material properties, peak power intensity levels of 50 gW∕cm^2 are safely reached in a suspended membrane. Consequently,the field enhancement is exploited to a far greater extent to achieve efficient and strong light–matter *** an example, parametric interactions are shown to reach a deeply nonlinear regime, revealing cascaded fourwave mixing leading to comb generation and high-order soliton dynamics.

关键词： Nonlinear gallium phosphide nanoscale photonics

不列颠哥伦比亚东南部Kokanee地区始新世Ag-Pb-Zn-Au脉状和交代矿床成矿年龄

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地质科学译丛 1993年第2期10卷 29-39页

作者： g. beaudoin 刘金山李杨 Ottawa-Carleton geoscience Centre Depanment of Gelogogy University of Ottawa Ont. Canada KIN 6N5

位于不列颠哥伦比亚东南部的Kokanee地区的Ag-Pb-Zn-Au脉状和交代矿床赋存于Slocan湖区深断裂上盘的中侏罗Nelcon岩基及其外围的寒武纪到三叠纪的变质沉积岩中.变质证据表明成矿作用晚于Nelson岩基和Ainsworth地区中侏罗纪的片理化作用... 详细信息

位于不列颠哥伦比亚东南部的Kokanee地区的Ag-Pb-Zn-Au脉状和交代矿床赋存于Slocan湖区深断裂上盘的中侏罗Nelcon岩基及其外围的寒武纪到三叠纪的变质沉积岩中.变质证据表明成矿作用晚于Nelson岩基和Ainsworth地区中侏罗纪的片理化作用,而早于(或同时)Slocan深断裂下盘的Valballa变质核杂岩的始新世揭顶活动时期.煌班岩墙和辉长岩墙与成矿作用明显地是同期的,通过对其中黑云母和角闪石的K-Ar同位素年龄研究,确定了40到52Ma时的始新世中期一次短暂的碱性岩浆活动.而更老一次早白垩纪另一次碱性岩浆活动(141～129Ma)的存在是可能的,但尚未完全证实.通过对矿脉和热液蚀变带中白云母进行的K-Ar法和分阶段加热的^(40)Ar/^(39)Ar法同位素年龄研究,可确定成矿热液沉淀形成脉状矿床和形成交代矿床的时间为58～59Ma,矿体与煌斑岩墙之间相互穿插关系表明,该矿区热液系统的活动持续了15Ma以上.始新世地壳拉张运动导致了高温热流体及作为成矿热液流动通道的构造体系的形成.Nelson岩基与成矿作用在时间上相差100Ma,两者之间仅有空间上的联系,没有成因上的联系,空间上的伴生不代表成因的联系.

关键词：矿床成矿年龄脉状矿床镁铷

Assessment of Mechanical Properties of Muscles from Multi-Parametric Magnetic Resonance Imaging

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Journal of Biomedical Science and Engineering 2014年第8期7卷 593-603页

作者： Renaud grenier Delphine Périé guillaume gilbert gilles beaudoin Daniel Curnier Mechanical Engineering Department Ecole Polytechnique de Montréal Montreal Canada Notre Dame Hospital University of Montreal Montreal Canada Philips Healthcare Montreal Canada Research Center Sainte-Justine University Hospital Montreal Canada

We hypothesized that a relationship existed between the mechanical properties and the magnetic resonance imaging (MRI) parameters of muscles, as already demonstrated in cartilaginous tissues. The aim was to develop an indirect evaluation tool of the mechanical properties of degenerated muscles. Leg and arm muscles of adult rabbits were dissected, and tested 12 hours post mortem, in a state of rigor mortis, or 72 hours post mortem, in a state of post-rigor mortis. The tests consisted of a multi-parametric MRI acquisition followed by a uniaxial tensile test until failure. The statistical analysis consisted of multiple linear regressions and principal component analysis. Significant differences existed between the rigor mortis and post-rigor mortis groups for E but not for the MRI parameters. 78%, 60% or 33% of the Young’s modulus could be explained by the MRI parameters in the post-rigor mortis group, rigor mortis group or both groups respectively. These relationships were confirmed by the principal component analysis. The proposed multi-parametric MRI protocol associated to principal component analysis is a promising tool for the indirect evaluation of muscle mechanical properties and should be useful to find biomarkers and predictive factors of the evolution of the pathologies.

关键词： Muscles Mechanical Properties Multi-Parametric MRI Multiple Regressions Principal Component Analysis

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拥有地区特色的戏剧区域

建筑与文化 2007年第4期 72-73页

作者： Jean beaudoin co-designer of the Quartier des Spectacles

地区的发展是着力巩固该地区固有的独特性．那就是一个展开的风景。在城市范围内．节日正在永恒不断地创造城市空间．是通过中大型规模街道事件的改变来实现。

关键词：地区特色戏剧城市空间中大型风景

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混凝土科学有关近代研究的专论第1版