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AN IMPROVED BRANCH-AND-BOUND ALGORITHM TO MINIMIZE THE WEIGHTED FLOWTIME ON IdeNTICAL PARALLEL MACHINES WITH FAMILY SETUP TIMES

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Journal of Systems Science and Systems Engineering 2008年第4期17卷 446-459页

作者： Belgacem BETTAYEB Imed KACEM Kondo H.ADJALLAH losi-icd cnrs fre 2848 université de technologie de troyes France

This article investigates identical parallel machines scheduling with family setup times. The objective function being the weighted sum of completion times, the problem is known to be strongly NP-hard. We propose a constructive heuristic algorithm and three complementary lower bounds. Two of these bounds proceed by elimination of setup times or by distributing each of them to jobs of the corresponding family, while the third one is based on a lagrangian relaxation. The bounds and the heuristic are incorporated into a branch-and-bound algorithm. Experimental results obtained outperform those of the methods presented in previous works, in term of size of solved problems.

关键词： Scheduling heuristic lower bound branch-and-bound algorithm identical parallel machines family setup times

GUEST EDITORIAL:NEW TRENDS ON SERVICE SYSTEMS AND SERVICE MANAGEMENT

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Journal of Systems Science and Systems Engineering 2008年第2期17卷 129-131页

作者： Imed KACEM losi-icd cnrs fre 2848 Université de technologie de TroyesFrance

The International Conference on Service Systems and Service Management （ICSSSM06） was held on October 25-27, 2006 in troyes, France. This conference was sponsored by IEEE Systems, Man and Cybernetics Society. More than 500 articles were submitted to the conference and after a peer-reviewing process, 284 papers were accepted and published in the conference proceedings.

关键词： GUEST EDITORIAL FTL QN CLSP than

High speed sub-micrometric microscopy using optical polymer microlens

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Chinese Optics Letters 2009年第10期7卷 901-903页

作者：曾新华 J.Plain S.Jradi P.Renaud Goud R.deturche P.Royer R.Bachelot Laboratoire de Nanotechnologie et d'Instrumentation Optique ICD CNRS FRE 2848Universit de technologie de Troyes department of Physics Shanghai Jiao Tong University

We report the high speed scanning submicronic microscopy （SSM） using a low cost polymer microlens integrated at the extremity of an optical fiber. These microlenses are fabricated by a free-radical photopolymerization method. Using a polymer microlens with a radius of curvature of 250 nm, a sub-micrometric gold pattern is imaged experimentally by SSM. Different distances between the tip and the sample are used with a high scanning speed of 200 cm/s. In particular, metallic absorption contrasts are described with an optical spatial resolution of 250 nm at the wavelength of 532 nm. Moreover, finite-difference time-domain （FDTD） simulations concerning the focal lengths of microlenses with different geometries and heights support the experimental data.

关键词： Finite difference time domain method Microlenses Optical fiber fabrication Optical fibers Polymers

Simultaneous 2D in-plane deformation measurement using electronic speckle pattern interferometry with double phase modulations

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Chinese Optics Letters 2018年第7期16卷 40-44页

作者：朱云龙 Julien Vaillant Guillaume Montay Manuel Fran?ois Yassine Hadjar Aurélien Bruyant icd-L2N UMR CNRS 6281 Université de Technologie de Troyes icd-LASMIS UMR CNRS 6281 Université de Technologie de Troyes

Electronic speckle pattern interferometry（ESPI） and digital speckle pattern interferometry are wellestablished non-contact measurement methods. They have been widely used to carry out precise deformation mapping. However, the simultaneous two-dimensional（2D） or three-dimensional（3D） deformation measurements using ESPI with phase shifting usually involve complicated and slow equipment. In this Letter, we solve these issues by proposing a modified ESPI system based on double phase modulations with only one laser and one camera. In-plane normal and shear strains are obtained with good quality. This system can also be developed to measure 3D deformation, and it has the potential to carry out faster measurements with a highspeed camera.

关键词： Simultaneous 2D in-plane deformation measurement using electronic speckle pattern interferometry with double phase modulations

Advanced hybrid plasmonic nano-emitters using smart photopolymer

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Photonics Research 2022年第7期10卷 1552-1566页

作者： DANDAN GE ALI ISSA SAFI JRADI CHRISTOPHE COUTEAU SYLVIE MARGUET RENAUD BACHELOT Light NanomaterialsNanotechnologies(L2n)LaboratoryCNRS EMR 7004Universitéde Technologie de Troyes12 rue Marie Curie10004Troyes CedexFrance universitéParis Saclay CEACNRSNIMBEF-91191Gif sur YvetteFrance

The integration of nano-emitters into plasmonic devices with spatial control and nanometer precision has become a great *** this paper,we report on the use of a smart polymer to selectively immobilize nano-emitters on specific preselected sites of gold nanocubes(GNCs).The cunning use of the polymer is ***,it records both the selected site and the future emitters-GNC distance through plasmon-assisted ***,because the polymer is chemically functionalized,it makes it possible to attach the nano-emitters right at the preselected polymerized sites,which subsequently recognize the nano-emitters to be *** the resulting active medium is a spatial memory of specific plasmonic modes,it is anisotropic,making the hybrid nanosources sensitive to light *** ability to adjust their statistical average lifetime by controlling the thickness of the nanopolymer is demonstrated on two kinds of nano-emitters coupled to GNCs:doped polystyrene nanospheres and semiconductor colloidal quantum dots.

关键词： polymer plasmon attached

Effect of Stacking Sequences on the Mechanical and Damping Properties of Flax Glass Fiber Hybrid

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Journal of Renewable Materials 2019年第9期7卷 877-889页

作者： Khouloud Cheour Mustapha Assarar Daniel Scida Rezak Ayad Xiaolu Gong universitéde Reims Champagne Ardenne LISM EA 469551097 ReimsFrance universitéde technologie de troyes ICD/LASMISUMR CNRS 628110010 TroyesFrance

The aim of this study is to show the interest of the mechanical and dynamical properties of glass-flax hybrid ***,various staking sequences of glass-flax hybrid composites were manufactured and tested in free *** damping coefficients were identified by fitting the experimental responses of free-free bending *** obtained results show that the staking sequences and the position of flax fiber layers in the hybrid composites changed the properties,so a classification of different stacking sequences was *** fact,the hybrid laminate made of two glass external layers placed on both sides of four flax layers is very interesting in term of its mechanical and damping ***,it showed better specific bending modulus and loss factor than glass composites with proportions of 31 and 39%,respectively.A study of a structure of this composite has been made to validate the obtained results.

关键词： Flax fiber glass fiber hybrid composite damping mechanical properties

Theoretical analysis of Bloch mode propagation in an integrated chain of gold nanowires

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Photonics Research 2014年第1期2卷 24-30页

作者： Ricardo Tellez-Limon Mickael Fevrier Aniello Apuzzo Rafael Salas-Montiel Sylvain Blaize Laboratoire de Nanotechnologie et d’Instrumentation Optique Institut Charles DelaunayCNRS-UMR 6279Universitéde Technologie de TroyesCS 4206010004TroyesFrance

The eigenmodes analysis of Bloch modes in a chain of metallic nanowires(MNWs)provides a significant physical understanding about the light propagation phenomena involved in such ***,most of these analyses have been done above the light line in the dispersion relation,where the Bloch modes can only be excited with radiative *** making use of the Fourier modal method,in this paper we rigorously calculate the eigenmode and mode excitation of a chain of MNWs via the fundamental transverse magnetic(TM)mode of a dielectric *** and dipolar transversal Bloch modes were obtained in an MNW chain embedded in a dielectric *** modes can be coupled efficiently with the fundamental TM mode of the *** the eigenmodes supported by the integrated plasmonic structure exhibit strong localized surface plasmon(LSP)resonances,they could serve as a nanodevice for sensing ***,the analysis opens a direction for novel nanostructures,potentially helpful for the efficient excitation of LSPs and strong field enhancement.

关键词： material. Bloch propagation

Compressive behavior and energy absorption of metal porous polymer composite with interpenetrating network structure

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中国有色金属学会会刊：英文版 2006年第B2期16卷 439-443页

作者： LIU Yu GONG Xiao-lu Institut Charles delaunay CNRS FRE 2848 LASMIS UTT 12 rue Marie Curie BP 2060 10010 Troyes France

Interpenetrating phase composites (IPCs) are a new class of composite materials with improved combinations of mechanical and physical properties. This study was performed on a new type of IPC called metal porous polymer composite (MPPC) with an interpenetrating network structure. Aluminum-polypropylene (AI-PE) and Aluminum-epoxy resin (Al-Ep) composites were produced by infiltrating the polymer in the aluminum foam. The composite microstructures were characterized using SEM observation. The compressive behavior and energy absorption characteristics of MPPC were investigated and compared with the aluminum foams. The compressive modulus of composite was compared with the VOIGT-REUSS bounds and HASHIN-SHTRIKMAN (H-S) bounds models. The experimental modulus of compressive tests falls well within the theoretical models.

关键词：金属多孔聚合物复合物互穿网络结构压缩行为能量吸收 MPPC复合物

Standing-wave spectrometry in silicon nano-waveguides using reflection-based near-field scanning optical microscopy

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Chinese Physics B 2019年第1期28卷 306-312页

作者：孙一之丁伟王斌斌 Rafael Salas-Montiel Sylvain Blaize Renaud Bachelot 樊仲维冯丽爽 School of Instrumentation Science and Opto-Electronics Engineering Beihang university Laboratory of Optical Physics Institute of Physics Chinese Academy of Sciences Laboratoire de Nanotechnologie et d’Instrumentation Optique(LNIO)icd cnrs UMR 6281 universitéde technologie de troyes Academy of Opto-Electronics Chinese Academy of Science

Utilizing reflection-based near-field scanning optical microscopy(NSOM) to image and analyze standing-wave patterns, we present a characterization technique potentially suitable for complex photonic integrated circuits. By raster scanning along the axis of a straight nano-waveguide in tapping mode and sweeping wavelength, detailed information of propagating waves in that waveguide has been extracted from analyses in both space and wavelength domains. Our technique needs no special steps for phase stabilization, thus allowing long-duration and environment-insensitive measurements. As a proof-of-concept test, in a silicon single-mode waveguide with a few of etched holes, the locations and reflection strengths of the inner defects have been quantified. The measurement uncertainty of the reflection amplitude is less than 25% at current stage. Our technique paves the way for non-destructively diagnosing photonic circuits on a chip with sub-wavelength spatial resolution and detailed information extraction.

关键词： near-field scanning optical microscopes integrated optics interferometry