research projects a 2012

7/31/2019 Research Projects a 2012

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RESEARCH PROJECTS AT UTT

SommaireSingle photon source made of single nanodiamonds ............................................................................. 3

Life-time studies of ZnO and hybrid ZnO-based nanostructures. ........................................................... 3

Coupling single nanostructures to plasmonic waveguides ..................................................................... 4

Microphotoluminescence of nanostructures .......................................................................................... 4

Nanowire-based photodetector with high gain ...................................................................................... 5

Characterisation of mechanical behaviour of a nanocrystalline layer using micro-dots and

instrumented nano-indentor .................................................................................................................. 6

Surface Mechanical Attrition Treatment (SMAT) .................................................................................... 7

Reliability-Based Design Optimization Analysis and Remeshing procedure to study tube hydroforming

process .................................................................................................................................................... 8

Characterization of the thermo-mechanical behaviour of Hemp fibres intended for the manufacturing

of high performance composites ............................................................................................................ 9

Collaborative platform .......................................................................................................................... 10

A Familiar Stranger-based approach for communities identification in social networks of the web.. 11

Doubly resonant plasmonic nanoantennas for quantum dots luminescence ...................................... 12

Communication and multi tasking at work. .......................................................................................... 13

Development of optical nanosensors using block copolymers ............................................................. 14

Characterization of form deviation for finite element simulation ........................................................ 15

Advanced heuristics for robust optimization problems ........................................................................ 16

Statistical Matching of a Camera Fingerprint in Natural Images .......................................................... 17

Assisted templating of ZnO nanowire arrays ........................................................................................ 18

Life Cycle Resource and Land Use Requirement for Photovoltaic (PV) and Wind Energy System in EU

27 ........................................................................................................................................................... 19

Material Flow Analysis (MFA) of Rare Earth Material in China ............................................................. 20

Electronic Billing & Payment (EBP) vs. Paper Billing & Payment (PBP): Dematerialization, Energy

Consumption and Environmental Impacts ............................................................................................ 21

Acoustic analysis of crumpled papers ................................................................................................... 22

3D modeling and analysis of crumpled papers ..................................................................................... 22

Dynamic analysis of crumpled papers ................................................................................................... 22

A Familiar Strangerbased approach for communities identification in social networks of the web .. 23


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Online GIS module for the processing and mapping of data collected from social media and other

sensors ................................................................................................................................................... 24

Social media data analysis and visualization: Application to LinkedIn .................................................. 25

Implementation and evaluation of an autonomous management framework for P2P live video

streaming services ................................................................................................................................. 26

PhD thesis: Neuro-inspired embedded systems for video surveillance applications ........................... 27


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Single photon source made of single nanodiamondsThis project will consist in studying nanodiamonds as single photon sources. The student will study

the emission properties of such systems and will show that they are indeed single photon sources.

Optical spectroscopy and photon correlation will be the 2 main techniques involved here. The

nanodiamonds will be commercially available but will have to be processes and studied during this

project.

The student will be using a home-made microphotoluminescence set-up designed to address single

nanodiamonds. Photon statistics and photon correlation will then be studied in order to understand

the quantum optical properties of the nanostructures.

Contact: Christophe Couteau,[email protected]

Laboratory for Nanotechnologies and Optical Instrumentation

Key words: single photon source, quantum optics, optical spectroscopy, photoluminescence

Life-time studies of ZnO and hybrid ZnO-based nanostructures.This project will consist in studying lifetime measurements of nanostructures made of ZnO and

hybrid ZnO-based materials. Study of carriers decay times in semiconductors such as ZnO is of prime

importance in order to address different applications such as photovoltaic, lighting or sensing

applications. The student will study the emission properties of such systems and optical spectroscopy

and photon correlation will be the two main techniques involved here. ZnO nanostructures (mainly

nanowires but not only) will be available through our various collaborations (GEMaC from Versailles

University and start-up Nanovation) but also from our own group done by Chemical Bath Deposition

(CBD) growth.


nanostructures. Photon statistics and photon correlation will then be studied in order to understand

the decay properties of the nanostructures.

Contact: Christophe Couteau,[email protected] for Nanotechnologies and Optical Instrumentation

Key words: Lifetime, optical spectroscopy, photoluminescence, fluorescence correlation

spectroscopy
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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Coupling single nanostructures to plasmonic waveguidesThis project will consist in coupling single nanostructures to plasmonic waveguides. The

nanostructures will be of various forms such as ZnO nanowires, CdSe nanocrystals and

nanodiamonds. The goal of this project is to study the light-matter interaction between a single

nanostructure and a plasmonic waveguide. The new field called quantum plasmonics has a great

potential in sensing and quantum information for instance.


nanostructures. Photon statistics and photon correlation will then be studied in order to understand

the quantum optical properties of the nanostructures. Waveguide fabrication by e-beam lithography

might be necessary depending on the structures already available.



Key words: quantum optics, plasmonics, waveguiding, fluorescence correlation spectroscopy, light-

matter interaction

Microphotoluminescence of nanostructuresThe goal of this project is to use a home-made microphotoluminescence set-up in order to address

optically individual nanostructures such as nanowires but also nanocrystals. Semiconductor

spectroscopy will then be studied for these structures as well power and polarization dependence.

Microphotoluminescence is a technique that allows the excitation of micro-size areas in order to

confine the excitation. By the same token, the luminescence is collected on a same micro-size region

of the sample. By this mean the student will study the light-matter interaction at the nanoscale for

future applications in sensing, photovoltaic and quantum information.


Laboratory for Nanotechnologies and Optical InstrumentationKey words: single photon source, quantum optics, optical spectroscopy, photoluminescence


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Nanowire-based photodetector with high gainThe goal of this project is to study the photoconductive gain of semiconductor nanowires. Recently,

such nanostructures have come across as being very good photodetectors with an important gain

(current/light conversion) and could be as efficient as the state of the art commercial detectors.

Nevertheless, the true measurement of this photoconductive gain remains unknown and the

purpose of this project is to address 2 issues: 1) to use a single photon source for accessing the

intrinsic gain of a single semiconductor nanowire and 2) to channel the light efficiently towards the

nanowire for efficient detection.

The methods used in this project will be: setting-up a microphotoluminescence experiment at room

and low temperatures, contacting and fabricating metallic slots for the plasmonic waveguide and

finally measure the gain upon illumination with a faint laser source and a single photon source.

The results and perspectives for this project are a better knowledge of light-matter interaction at

nanometer scales as well as a better understanding of the physical phenomena responsible for the

high internal photoconductive gain in semiconductor nanowires.

This project is mostly experimental although some simulation will be done too.



Key words: single photon source, quantum optics, optical spectroscopy, photoluminescence
mailto:[email protected]:[email protected]:[email protected]:[email protected]


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Characterisation of mechanical behaviour of a nanocrystalline layer

using micro-dots and instrumented nano-indentorSurface Mechanical Attrition Treatment (SMAT patented treatment in 2000 by our lab LASMIS) is a

recently developed promising technique to generate a nanocrystallised layer on the surface of

metallic components. As a strong refinement of the grain size can lead to a significant increase ofstrength due to the Hall-Petch relationship, the nanocrystalline layer induced by SMAT is very

attractive. The difficulty is to characterise the mechanical behaviour of this nanocrystalline layer itself

(thickness between 30 and 50 m composed of nano-grains).

In this work, a nanocrystallised layer will be synthetized at the surface of 316L stainless steel by

means of SMAT. Micro-dots will be then realised using a new technique based on chemically

synthetized mask (patent pending). Both lithography and etching techniques will be combined. This

part will be conducted in collaboration with the LNIO (nanofab activity).

Finally, the mechanical behaviour of the nanocrystalline layer will be characterised performing

compressive tests on the micro-dots thanks to instrumented nano-indentor machine (all these

equipments are available in our university). This project is part of the national CNRS risk topic.

For more information, please contact Mrs Delphine Retraint

Tel.: +33 3 25 71 56 68; fax: +33 3 25 71 56 75.

E-mail address:[email protected]


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Surface Mechanical Attrition Treatment (SMAT)Due to its excellent corrosion resistance and its biocompatibility, austenitic 316L stainless steel is a

widely used material in environments such as the petrochemical, chemical, nuclear, and food

industries. However, in its coarse-grained (CG) state, austenitic stainless steel possesses relatively

low strength and poor wear resistance that make it unsuitable for many structural applications. It is

well known that a strong refinement of the grain size can lead to additional increase of strength due

to the HallPetch relationship. So, with the emergence of methods to produce nanostructures, new

routes to enhance properties of metals and alloys are arising. Among them, the recently developed

surface mechanical attrition treatment (SMAT patented treatment in 2000 by our lab LASMIS)

appears as a promising technique to generate a nanocrystallised layer on the surface of metallic

materials.

SMAT provides an alternative approach to effectively upgrade the global properties of engineering

materials and this, without change of the chemical composition. As SMAT is simple, flexible and low

cost, this technique is potentially very useful in industrial applications.

In this work, a nanocrystallised layer will be synthetized at the surface of 316L stainless steel by

means of SMAT performed at different temperatures. Investigations of the SMATed microstructure

(optical and electron microscope observations, X-ray diffraction measurements), the residual stresses

and the micro-hardness will be carried out (all the equipments are available in our university).

In a second step, the influence of the SMAT on the mechanical properties of the treated steel

specimens will be studied (tensile and/or fatigue tests).

For more information, please contact Mrs Delphine Retraint

Tel.: +33 3 25 71 56 68; fax: +33 3 25 71 56 75.

E-mail address:[email protected]


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Reliability-Based Design Optimization Analysis and Remeshing

procedure to study tube hydroforming process

In this project, we are interested particularly in the tube hydroforming process. This process consists

to apply an inner pressure combined to an axial displacement to manufacture the part. During themanufacturing phase, inappropriate choice of the load paths can lead to failure. Deterministic

approaches are unable to optimize the process by taking into account the uncertainty. So we

introduce the Reliability-Based Design Optimization (RBDO) coupled to Remeshing procedure to

optimize the process under probabilistic constraints to ensure a high reliability level and stability

during the manufacturing phase and avoid the occurrence of such plastic instability. Taking some

uncertainties into account the process is very stable associated with a low failure probability. The

definition of the objective function and the probabilistic constraints take advantage from the

Forming Limit Diagram (FLD) and the Forming Limit Stress Diagram (FLSD) used as a failure criterion

to detect the occurrence of wrinkling, severe thinning and necking. To validate the proposed

approach, the THP is then introduced as an example. The numerical results show the robustness and

efficiency of the RBDO to improve thickness distribution and minimize the risk of potential failuremodes.

CHEROUAT Abel, ProfessorICD/GAMMA3

UTT, 12 rue Marie-Curie, BP 2060, 10010 Troyes, France

e-mail :[email protected]


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Characterization of the thermo-mechanical behaviour of Hemp fibres

intended for the manufacturing of high performance composites

In this project, the thermo-mechanical behaviour of hemp fibres is investigated by means of a

dynamic mechanical analyser. When a periodic stress is applied to an elementary fibre, an increase in

its rigidity and a decrease in its damping capacity are observed. These changes in its mechanical

properties tend to stabilize after an identified number of cycles, thus providing evidence of an

adaptation phenomenon. This specific mechanical behaviour certainly involves biochemical and/or

structural modifications, such as micro-fibril reorientation, in the materials organisation. In addition,

the behaviour of hemp fibres is affected by temperature, which acts not only as an activation factor,

but also as a degradation factor with respect to the visco-elastic properties of the fibres. The rigidity

and endurance of the fibres are highly affected by thermal treatment at temperatures above 150C,

and up to 180C. Taking these results into account, polypropylenehemp fibre composites were

manufactured using a specific processing cycle. By respecting the integrity of the fibres during

manufacturing, it is found that with such composites, comparatively high performance can be

achieved with some specific mechanical properties. This is highly encouraging for applications

requiring high mechanical performance.

The aim of this project:

- Investigation of the mechanical properties of hemp fibres,

- Polypropylenehemp fibre composites were manufactured.

- Mechanical properties, i.e. Youngs modulus, stress and strain at rupture, were studied as a

function of the mat of the fibres and temperature.

CHEROUAT Abel, ProfessorICD/GAMMA3

UTT, 12 rue Marie-Curie, BP 2060, 10010 Troyes, France

e-mail :[email protected]


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Collaborative platformDescription: Within the framework of the European project 2Centre (Cybercrime Centres of

Excellence Network for Training Research and Education) a collaborative platform is being created.

This platform should ultimately allows to develop and benchmark a wide range of digital forensics

tools (among which analysis of OS and browser log files, files metadata classification, semantic

research of office and multimedia files, etc... ).

The main goals of this collaborative platform are threefold:

* First, the end-users can describe their new and/or problematic case-study to allow a thorough

study by researchers. Once a suitable algorithm is proposed, developers can finally contribute to

create an open-source software.

* Secondly, by using a labeled database of case-study and a database of proposed forensics tools,

researchers can compare the performance obtained from a novel method with the state-of-the-art

algorithms.

* Finally, the comparisons performed on the platform are recorded together with the performances

of tested tools to enable end-users to choose the most accurate tool in each forensics case they have

to face in practice.

The proposed internship is part of the European 2Centre project (www.2centre.eu). The student will

have to briefly review current commercial digital forensics tools available together with the state-of-

the-art algorithm published in the literature. Then the student will have to contribute to the

development of the platform and/or of the development of digital forensics tools within an open-

source framework.

According to the achievement and/or the will of the student, the student can contribute to improve

robustness, performance, and speed of digital forensics tools working closely with the researchers

working on these topics at the UTT.

Two students might be available for this internship ; in such a case, one will preferably work on the

computer development of platform and forensics tools while the second will preferably do a research

internship on digital forensics methods (in the wide sense explained above).

Contact: Rmi Cogranne

Email:[email protected]


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A Familiar Stranger-based approach for communities identification in

social networks of the web

Requirement: Algorithms; Graph Theory; Probability.

The recent growth of social networks of the Internet has led to new ways of communication and

information sharing between members of the same network. An individual (a node) can play several

roles in a social network. He may, for example, interact (directly or indirectly) with people who are

familiar to him, those who are completely strangers, or even "familiar strangers" to him". The

"Familiar Strangers" are individuals who are not directly connected but who share the same

"attributes" in their activities in the network. One of the major challenges in the social network

analysis is to understand the dynamics of its communities to better monitor and represent them. As

in the real society, the social link on a virtual platform will be determined by time, space, attributes

(digital identity, interests, etc.) and interaction (data exchange). While the state of art in SNAM

(social network analysis and mining) is full of work that takes into account attributes and

interactions, few works integrate spatio-temporal constraints. The latest advances in location-based

services via mobile phones and other smart devices, open up new perspectives for conceptualizing

the notion of virtual space. This conceptualization will contribute ultimately to refine the definition of

the concept of community, specifically the notion of familiarity that we can define as an individual's

propensity to be or to come in contact with another individual or community.

The work required includes:

1. Produce a state of the art on the concept of "Familiar Strangers" (FS) applied to social network of

the Web

2. Build a small application (Java or C ++ or other) to implement a FS algorithm and visualize the

result on some graphs

3. Build a simulation tool of evolution and formation of communities based on a probability of

familiarity

For more information send a mail to:[email protected]

(Babiga BIRREGAH, University of Technology of Troyes)


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Doubly resonant plasmonic nanoantennas for quantum dots

luminescenceControl of the luminescence of molecules or nanocrystals is of primary importance for applications

such as protein and cell imaging or Light Emitting Devices (LED). It is now well accepted that

luminescence is modified in the near vicinity of metallic nanoparticles which is a manifestation of the

Purcell effect.

Metallic nanoparticles exhibit resonances which are related to Surface Plasmon (SP) excitations, that

is collective oscillations of the free electron gas on the metallic surface. These resonances entail a

strong modification of the electromagnetic near-field around the nanoparticles leading to a change

of both absorption cross section and emission quantum yield of the luminescent species. Even if

luminescence is also modified when the nanoparticle is off-resonance stronger effects are observed

when it is on-resonance.

As quantum dots can be excited at a much lower wavelength than its emission peak it is possible to

device metallic nanoparticles exhibiting two distinct SP resonances matching respectively excitation

and emission wavelengths of the QD. For blue green emitting QD, illumination should be performed

in the near UV where no SP can be excited for gold nanoparticles. However, if near infrared emitting

QD are used then it is possible to obtain doubly resonant gold nanostructures.

The purpose of this subject is to obtain double enhancement of near-infrared QD luminescence

through a well devised arrangement of nanoparticles.

(1) J. Grand, et al., Phys. Rev. B, 72, 033407 (2005)

(2) P. Viste, J. Plain, R. Jaffiol, A. Vial, P.-M. Adam, P. Royer, ACS Nano. 4, 759 (2010)

Full Professor Pierre-Michel Adam

Laboratory of Nanotechnology and Optical Instrumentation

LNIO/ICD

phone : +33325715661

fax : +3325718456e-mail : [email protected]


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Communication and multi tasking at work.Email systems are used to manage multi-tasking work situations. An analysis has been conducted in

Tech-CICO research team about this subject and the link between strategies used when writing

emails and the existing functionalities of email systems has been questioned. Based on this critical

analysis, the aim of this project is to design new functionalities allowing users to be assisted in their

daily use of email systems, in order to enable them to acquire and to implement skills related to the

management of communication and multitasking at work.

Prerequisites:

Skills related to the development of interfaces and multimedia contents (Java, Ajax, Flash, Director,

TCL-TK, PHP,)

A knowledge of e-mail API would be great

keywords:

email, multitasking, user-centered design

Myriam Lewkowicz

Matre de Confrences / Associate Professor

Institut Charles Delaunay - UMR CNRS 6279

Tech-CICO (Technologies pour la Coopration, lInteraction et les Connaissances dans les Collectifs)

Universite de Technologie de Troyes (UTT)

12, rue Marie Curie, BP 2060, 10010 TROYES CEDEX, FRANCE

Tel. 33 (0)3 25 71 + 80 67(direct)/80 08(secr.)/76 98(fax)

mob. 33 (0)6 16 47 13 53

www.utt.fr-http://techcico.utt.fr-http://myriam.lewkowicz.free.fr/
http://www.utt.fr/http://www.utt.fr/http://techcico.utt.fr/http://techcico.utt.fr/http://techcico.utt.fr/http://myriam.lewkowicz.free.fr/http://myriam.lewkowicz.free.fr/http://myriam.lewkowicz.free.fr/http://myriam.lewkowicz.free.fr/http://techcico.utt.fr/http://www.utt.fr/


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Development of optical nanosensors using block copolymers

Scientfic Supervisor: Thomas MAURER

Host Institution:Laboratoire de Nanotechnologie et dInstrumentation Optique(LNIO)/ Universit de

Technologie de Troyes (UTT)

Address : 12 rue Marie Curie, 10000 TROYES

email :[email protected]

Tel : +33 (0) 3 25 75 97 11

Fax : +33 (0) 3 25 71 84 56

Description of the research project :

Context

For the past fifteen years, the investigations of the Localized Surface Plasmon Resonance(LSPR) for 50nm-100nm Au nanoparticles has opened new perspectives for optical nanosensors.

Indeed, there is not any longer the need of using a prism in order to excite plasmons. The application

possibilities are all the more numerous as the fundamental studies go to the direction of single

molecule sensing. What is at stake today is the development of such large scale and low cost devices.

Scientific aim

The scientific aim is here to use copolymers as

ecthing masks for Reactive Ion Etching (RIE) in order to

fabricate arrays of Au nanocylinders [1]. The idea

consists in using PS-PMMA copolymers and in

organizing them into domains after annealing. This

organization into domains will be controlled by AFM.

Then, since the two polymers are not attacked with the

same speed by the plasma during the RIE procedure, it

will conduct to the creation of a etching mask (made of

holes). The next step is the attack of the Au under-layer

via the holes during another RIE process. Finally, this

process should allow the fabrication of arrays of Au

cylinders over large surfaces [2]. The interest of such aprocess is that it does not require expensive technology and paves the way for large-scale

production.

Once the optical nanosensors is made by the young scientist, sensing tests will be led in

order to detect small quantities of different molecules.

[1] K. Asakawa and A. Fujimoto, Appl. Opt. 44 (2005) N34

[2] C. K. Kang et al., Current Applied Physics 9 (2009) 197-200

Figure 1 :AFM image of PS-PMMA mask

after annealinbg

1.50 deg

-5.57 deg

200nm


15/27

15

Characterization of form deviation for finite element simulation

In the context of metal forming process optimization, the component geometry resulting from the

finite element (FE) simulation has to be compared to the desired component geometry. The

optimization algorithm then analyses this form deviation to decide the more appropriate direction

for optimizing. Several approaches are available for the characterization of form deviation from the

nominal geometry such as tolerance zones based on geometric dimensioning and tolerancing

(GD&T), mean and standard deviation of deviations from the nominal geometry, or a deviation mode

characterization. This last approach describes the global deviation as the combination of elementary

type of deviation (for a cylinder: diameter, conical, barrel, ovality, undulation ).

The project is to develop a methodology for the characterization of form deviation of FE simulation

results. Objectives are:

- The generation of form deviation basis, based on the modal analysis and enrichment withtechnical deviation modes,

- The form deviation analysis of finite element meshes where a problem concerns the meshes

nodes position that changes when meshes are different,

- Application to 2D and 3D shell and volume meshes.

Some form deviation modes computed with modal analysis of a meshed cylinder

Pierre Antoine Adragna

Maitre de confrences - Associate Professor

Universit de Technologie de Troyes

bureau E202

12 rue Marie Curie - BP 2060 - 10010 Troyes

Tel: +33 3 51 59 11 27

fax: +33 3 25 71 56 75

Mail:[email protected]


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Advanced heuristics for robust optimization problems

Responsible: Andra C. Santos Duhamel (Associate professor, Universit de Technologie de Troyes,

Troyes, France)

Team: ICD-LOSI, UMR STMRThe LOSI (Laboratoire dOptimisation des Systmes Industriels) team works further on mathematical

modelling and on designing efficient algorithms to solve combinatorial optimization problems. Our

expertises are mainly on logistic topics for transportation, location routing and supply chain

problems. The methods developed in LOSI have been applied on industrial and on commercial

applications as complete or a piece of decision-making systems. Moreover, the team has also

produced advances in scientific terms, particularly for vehicle routing and multiobjectives problems.

Site: http://losi.utt.fr/fr/index.html

Abstract

In this traineeship, the student will be integrated into a high level team. He or she will work together

with an expert on the development of classic heuristics for robust versions of well knownoptimization problems with several applications on transport infrastructures and telecommunication.

Tactical and strategic levels of decisions, sometimes with several (conflicting) objectives to optimize,

will be investigated. The robust optimization has emerged in the last years as an alternative to

perform an optimization over a set of scenarios and it is mainly applied when data are uncertain. An

initial literature review will be given for being improved by the trainee. Then, the student will

develop algorithms such as greedy heuristics, population-based metaheuristics and local searches.

The strategies will be further tested over a number of instances. A final report will be done followed

by a possible local presentation.

Skills

Proficiency in programming (C or C++).Applicants can communicate in English, French or Portuguese.

Some knowledge in graphs, operational research strategies for combinatorial optimization problems

will be much appreciated.

General Information

Applicants can contact [email protected] for more details.


17/27

17

Statistical Matching of a Camera Fingerprint in Natural Images

Background:

Imaging is increasingly used as a surveillance tool in various fields: production control, correction

maps, image denoising, automatic identification of objects, image segmentation, handwriting

recognition, etc. These natural images, however, can be altered (voluntarily or not) by some digitalprocessing and it is therefore desirable to detect automatically the presence of these alterations. An

optical acquisition system, a digital camera in particular, changes the physical nature of the image

due to its Camera Transfer Function (CTF). This CTF plays the role of a physical fingerprint. Hence, it is

desirable to estimate automatically this CTF in order to detect some image manipulations.

Objectives:

This internship consists of estimating the CTF from an image. There are a finite number of possible

CTFs. The proposed problem aims to evaluate the matching of a natural image with a known CTF. In a

first step, the evaluation will be done on artificial images whose content is known. In a second step,

the image content will be assumed unknown and the loss of matching will be quantified.

Summary:

To understand the CTF model ;

To evaluate the matching between a known CTF and a known natural image ;

To evaluate the matching between a known CTF and an unknown natural image.

Skills:

Signal and image processing, statistics and Matlab programming.

Laboratory :

Institut Charles Delaunay, Team LM2S, Universit de Technologie de Troyes, Troyes (10).

Contact:Dr. Lionel Fillatre (associate professor)

E-mail :[email protected]
mailto:[email protected]:[email protected]:[email protected]


18/27

18

Assisted templating of ZnO nanowire arrays

NAME OF THE HOSTING INSTITUTION:

Photonics group UTT/ICD/LNIO

Internship short description:

Zinc oxide, one of the most promising materials, has unique

electrical and optical properties such as wide band gap, large

exciting binding energy, high electrical mobility, and high visible

transmittance; therefore ZnO has a wide range in many potential

applications. The proposed study will focus on the synthesis of ZnO

nanowire arrays by on templated ZnO buffer layer by chemical bath

deposition. As compared to other deposition methods, CBD

referred to as solution deposition method belonging to low

temperature process, and this method has its own advantages such

as simplicity, low temperature, large growth area and low

production cost. In CBD, the crystal morphology is strongly

influenced by the solution including the chemical concentrations and temperature and the nature of

the buffered substrate. The intern will first concentrate on the preparation of ZnO nanorods by

chemical bath deposition and the template buffer layers by means of micro/meso/nanosphere

lithography. The effect of the template on the morphologies and more specifically the optical

properties will be then examined. An example of a CBD synthesized thin film of ZnO nanorods is given

above.

Name and function of the internship supervisor:

A. Gokarna (Researcher)[email protected]/ G. Lrondel (Professor),[email protected]

Student background: 4th

year undergraduate or master students in materials science or physics (condensed

matter, optics)

Internship Dates: Fall 2012 and/or Spring 2013


19/27

19

Life Cycle Resource and Land Use Requirement for Photovoltaic (PV)

and Wind Energy System in EU 27

Dr. Junbeum Kim and Dr. Bertland Guillaume

CREIDD Research Centre on Environmental Studies & Sustainability,

Department of Man, Environment & Information Technology (HETIC),

University of Technology of Troyes, France.

There has been a dramatic rise in consumption of energy resources, mainly fossil fuels, since the

advent of the industrial revolution in 19th century. The World Energy Outlook shows that total energy

consumption is expected to increase by 60 percent in the next 25 years (www.iea.org). Therefore, for

future world energy demands, renewable energy system is playing an important role to meet the

worlds energy demands. Renewable energy technology and systems such as photovoltaic (PV) andwind energy are consuming a number of metals and rare earth materials and using available land as

well as providing direct benefits at national and local levels. The demand for a number of metals and

rare materials are forecast to double over the next 50 years (Muilerman and Blonk 2001).

Up to date, PV technology has acquired the potential to become a major source of power generation

for the world. Figure 1 shows historical PV market development. Especially, European Union (EU)

leads PV power generation in the world with almost 30 GW, which is 75% of the world s total

cumulative capacity in 2010. By 2050, this PV system will correspond to between 19 to 27% of the

electricity demand in EU (EREC 2010).

Figure 1. Historical PV market development

(Data from European Photovoltaic Industry Association)In this study, based on PV and wind energy production scenarios and roadmap by country in

EU 27 by 2020 and 2030, the requirement amount of life cycle resources (e.g., types and amount of

direct and indirect input metals and rare materials) and land use for PV and wind energy system will

be calculated. Also by increasing the energy production efficiency of PV system, the future reduced

resources and land use were calculated. Having a product-lifespan of over 30 years, we will explore

that by increasing the recycling rate of significant volumes of end-of-life PV modules and wind plant,

we will see the recovered important materials amount.


20/27

20

Material Flow Analysis (MFA) of Rare Earth Material in China

Dr. Junbeum Kim




These days, the rare earth materials play an important role in many new technologies, such as

electric vehicles, energy-efficient lighting, and wind turbines, alternative energy and communications

industries. The rare earth materials are the 15 lanthanide series elements (cerium, lanthanum,

praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium,

holmium, erbium, thulium, ytterbium, and lutetium (atomic numbers 5771). China produces nearly

95 percent of the worlds rare earth materials and China became the world's dominant producer of

rare earth elements in the early 1990s, when production at the Mountain Pass mine in California

began to decline (USGS 2011). China's dominance increased rapidly and in 2000 China accounted for

about 90% of world rare earth production. As increasing Chinas economic development, also Chinas

consumption of rare earth materials will be increased significantly. China had consumed about

73,000 ton in 2009 with 380 percent increased amount than 52,000 ton in 2000 (USGS 2011). With

this background, already China has severely tightened its restrictions on exports of these elements.

China has slashed its export quotas by 37 percent in 2010 and by another 35 percent in the first half

of 2011 (Torence et.al 2011). The Chinas tightened restriction of rare earth materials will also affect

to the industry in the U.S., Japan, and Europe.

Based on these backgrounds, a number of key problems and questions regarding the challenges

related to Chinas rare earth materials consumption and international trade could be addressed:

How much of the rare earth materials do extract, trade, and consume in China? The rare

earth materials flow to renewable energy (photovoltaic (PV) and wind energy) and

information communication technology (ICT) industry in China. What are the key materials

for these industries? How much the rare earth materials are used in these industrial sectors?

Estimation of future rare earth material supply and demand for renewable energy and

information communication technology (ICT) system in China

With Chinas future rare earth material demand, its implication in international demand and

supply.

The primary objective of this research is to gain a better understanding of rare earth materials flow

in China. In this research, also we will see the future demand and supply based on renewable energy

and ICT technology system development in China and its impact to international demand and supplyof rare earth materials.


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Electronic Billing & Payment (EBP) vs. Paper Billing & Payment (PBP):

Dematerialization, Energy Consumption and Environmental Impacts

Dr. Junbeum Kim and Dr. Serge Rohmer




The recent development of Information and Communication Technologies (ICTs) has significantly

changed, among others, the ways how products are purchased, used, and discarded. Such changes,

in turn, influence how materials and energy are consumed and pollutants are generated along the

production consumption chains. One of the areas that ICT can play a significant role in reducing

energy consumption and environmental impact is billing. In 2008, an average of 12.4 bills was paid

from each household per month in the U.S., among which 56% were paid by paper billing and

payment system. The impact of electronic billing and payment on energy and the environment,

however, has not been fully captured by previous studies. We want to conduct a research to

compare paper billing and payment (PBP) systems with electronic billing and payment (EBP) systems

in terms of their life-cycle environmental impact and energy consumption. The analysis will be

conducted in two phases: (1) descriptive life cycle assessment (LCA) based on current conditions

comparing PBP and EBP systems; (2) consequential LCA based on scenarios for the shift from PBP to

EBP systems. The results will be utilized for developing educational YouTube materials on

comparative LCA and consequential LCA as well as for outreaching academic and professional

communities through presentations and research articles. This research will shed lights on policy

implications of other broader changes such as e-government and e-banking. The results of the

proposed research will be relevant also for corporate decision-making by offering a better

understanding on energy and environmental consequences of billing and payment systems.

Figure 1. PBP System and EBP System


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22

Acoustic analysis of crumpled papers

Required skills: signal analysis

Lab: CREIDD

Supervisor: Serge ROHMER,[email protected]

Description:The objective of this research is to analyze the sound created by crumpled papers. The

student will be in charge of the definition of the protocol to measure the acoustic effects

created by the folding or unfolding procedure of crumpled papers. The student will apply the

protocol on different kinds of crumpled papers. The analysis of the signals will show the

relationship between the paper patterns and the sound and the energy used to fold or

unfold the papers.

This project is a part of a research program dedicated to smart packaging based on crumpled

papers.

3D modeling and analysis of crumpled papers

Required skills: mechanical analysis, 3D modeling

Lab: CREIDD


Description:

The objective of this research is to establish the topological (statistical) analysis of crumpled

papers. The student will define the protocol to measure and analyze the topology

(orientation, size, ) of crumpled papers. The student will apply the protocol by using a 3ddigitizer arm with scanner to analyze different crumpled papers.

This project is a part of a research program dedicated to smart packaging based on crumpled

papers.

Dynamic analysis of crumpled papers

Required skills: mechanical modeling, strengh analysis

Lab: CREIDD


Description:

The objective of this research is to analyze the dynamic efficiency of folded objects (based

on crumpled papers). The dynamic efficiency of a folded object expresses the ability of the

object to create dynamic mechanical interactions with its environment. The student will

have to define the type of triggering factors that should be applied to create the dynamic

interactions.
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


23/27

23

A Familiar Strangerbased approach for communities identification

in social networks of the web

Requirement: Algorithms; Graph Theory; Probability.

The recent growth of social networks of the Internet led to new ways of communication and

information sharing between members of the same network. An individual (a node) can play several

roles in a social network. He may, for example, interact (directly or indirectly) with people who are

familiar to him, those who are completely strangers, or even "familiar strangers" to him". The

"Familiar Strangers" are individuals who are not directly connected but who share the same

"attributes" in their activities in the network. One of the major challenges in the social network

analysis is to understand the dynamics of its communities to better monitor and represent them. As

in the real society, the social link on a virtual platform will be determined by time, space, attributes

(digital identity, interests, etc.) and interaction (data exchange). While the state of art in SNAM

(social network analysis and mining) is full of work that takes into account attributes and interactions

few works integrate spatiotemporal constraints. The latest advances in locationbased services via

mobile phones and other smart devices, open up new perspectives for conceptualizing the notion of

virtual space. This conceptualization will contribute ultimately to refine the definition of the concept

of community, specifically the notion of familiarity that we can define as individual's propensity to be

or to become in contact with another individual or community.

The work required includes:

1. Produce a state of the art on the concept of "Familiar Strangers" (FS) applied to social network of

the Web

2. Build a small application (Java or C ++ or other) to implement a FS algorithm and visualize the

result on some graphs

3. Build a simulation tool of evolution and formation of communities based on a probability of

familiarity

Contact:

BIRREGAH Babiga, Phd

Assistant professor

ICD UMR-CNRS 6279 STMR

Joint Research Unit in Sciences and Technologies for Risk Management

[email protected]


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Online GIS module for the processing and mapping of data collected from

social media and other sensors

In recent years, social media have proven their importance in the emergence and ad-hoc crisis

management communities. Given the success of these platforms, we are interested in studying their key

role in community resilience during a crisis. The contribution of social media like Twitter, Flickr and

Facebook and other platforms such as Ushahidi, Sahana Eden Google Person Finder in times of sudden and

widespread crises (earthquake, flood, etc..) is no longer to be demonstrated (Goolsby 2010, Norheim-

Hagtun & Meier 2010). However, several issues remain unexplored such as their availability, reliability and

efficiency. Among the information that could be displayed for crisis mapping one could include information

about missing persons, location of emergency resources (rescue teams, healthcare facilities, etc.), the state

of transport and communication networks, etc.

The joint research unit (UMR CNRS STMR) in Sciences and Technologies for Risk Management is involved in

the development of a global framework in crisis management. We are now interested in developing

research in the area of crisis mapping using an integrated approach involving different sources of

information. A first module was developed a few months ago. It remains to deploy this platform on internet

to allow remote users to test it as an online multi-game platform. One needs thus to set up user interface.

The intern will work with an interdisciplinary team working on crisis management.

Specific Tasks:

1. Build the user interface of the platform,

2. Develop a web interface from which users can report incidents or other types of information to feed the

map in real time,

3. Write a user guide.

Requirements:

The applicant must basic programming experience is required (web oriented- php, JavaScript, etc.).

The successful candidate is expected to work in English. Previous knowledge of French is not required.

A basic knowledge of APIs for spatial visualization and data collection on social media will be appreciated

but not mandatory.

Applicants should submit a CV and a statement of prior studies and other experiences with respect to the

above mentioned requirements via email.

Bibliographie

Goolsby, R. (2010), Social media as crisis platform: The future of community maps/crisis maps,ACM Trans.

Intell. Syst. Technol. 1, 7:17:11. http://doi.acm.org/10.1145/1858948.1858955

Magsino, S. (2009), Applications of social network analysis for building community disaster resilience:

workshop summary, Natl Academy Pr.

Norheim-Hagtun, I. & Meier, P. (2010), Crowdsourcing for Crisis Mapping in Haiti, Innovations:

Technology, Governance, Globalization 5(4), 8189.

Perez, C., Lemercier, M., Birregah, B. & Corpel , A. (2011), Spot1.0: Scoring suspicious profiles on twitter, in

International Conference on Advances in Social Network Analysis and Mining, ASONAM 2011 (July, 25 -27).

Accepted.

Shklovski, I., Palen, L. & Sutton, J. (2008), Finding community through information and communication

technology in disaster response, in Proceedings of the 2008 ACM conference on Computer supported

cooperative work, CSCW 08, ACM, New York, NY, USA, pp. 127136.

http://doi.acm.org/10.1145/1460563.1460584

Contact:

BIRREGAH Babiga, Phd, Assistant professor,[email protected]


http://doi.acm.org/10.1145/1460563.1460584http://doi.acm.org/10.1145/1460563.1460584mailto:[email protected]:[email protected]:[email protected]:[email protected]://doi.acm.org/10.1145/1460563.1460584


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25

Social media data analysis and visualization: Application to LinkedIn

1. Explore all the functionalities of LinkedIn analytics provided by LinkedIn labs.

2. Propose a graph model of this social network,3. Propose visualization tool that can help to understand the dynamic of this network

Requirements:

The applicant must have some knowledge in Computer Science and must be used with Social Media

platforms and services (LinkedIn, Facebook, etc.). Basic programming experience is required (web

oriented- php, JavaScript, etc.).

The successful candidate is expected to work in English. Previous knowledge of French is not

required.

A basic knowledge of APIs for spatial visualization and data collection on social media will be

appreciated but not mandatory.

Applicants should submit a CV and a statement of prior studies and other experiences with respect to

the above mentioned requirements via email.

Contact:

BIRREGAH Babiga, Phd

Assistant professor



[email protected]


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26

Implementation and evaluation of an autonomous management

framework for P2P live video streaming services

Description of work: This training consists in developing a Java-based autonomous framework for

the management of a peer-to-peer live video service. First of all, the student will have to study

previous research work that was performed in our lab. The latter deals with (1) the design of an

adaptive monitoring plane for distributed management information and (2) adaptive control

mechanisms for the performance enhancement of P2P live streaming systems. Then, the student will

integrate all these research contributions into a unique framework that will gather all the already

developed elements. In a third time, the student will evaluate this implementation through a large-

scale experiment in the PlanetLab environment. The final goal of this work is to publish an open-

source version of the developed framework.

Research references:

R. Makhloufi, G. Doyen, G. Bonnet, and D. Gati. SAAM: a Self-Adaptive Aggregation Mechanism

for Autonomous Management Systems. In Proceedings of the 13th IEEE/IFIP International

Network Operations and Management Symposium- NOMS12. To appear, 2012.

R. Makhloufi, G. Doyen, G. Bonnet, and D. Gati. Towards self-adaptive management frameworks:

The case of aggregated information monitoring. In O. Festor and E. Lupu, editors, Proceedings of

the 7th ACM/IEEE/IFIP International Conference on Network and Service Management -

CNSM11, pages 15. IEEE, 2011.

I. Ullah, G. Doyen, Bonnet G., and D. Gati. User behavior anticipation in P2P live video streaming

systems through a bayesian network. In N. Agoulmine, C. Bartolini, T. Pfeifer, and D. OSullivan,

editors, Proceedings of the 12th IFIP/IEEE International Symposium on Integrated Network

Management - IM11, pages 337344. IEEE, 2011.

Keywords: Autonomous network management, P2P networks, live video streaming

Required skills: Advanced Java programming, software engineering, networks principles, P2P

networks

Duration: 6 months

Starting date: Autumn 2012

Contact: Guillaume DOYEN (Associate Professor):[email protected]

Rafik Makhloufi (PhD):[email protected]


27/27

PhD thesis: Neuro-inspired embedded systems for video surveillance

applications

Graduate School:

Sciences of Technological and Organizational Systems (SSTO)

Speciality: Optimization and Security of Systems (OSS)University of Technology of Troyes (UTT)

http://www.utt.fr/en/education/phd-studies.html

Application: Please clickhere.

Funding from September 2012 till August 2015: Research department of Ministry or Regional

Council

Deadline for applications: April 28th

2012

Co-supervisors:

Michel Doussot, ERA/STMR, University of Technology of TroyesMichel Paindavoine, LEAD, University of Burgundy

Contact:[email protected]

Current systems for face recognition are very dependent on environmental conditions of the scene

such as lighting or the visibility.

Conventional methods of pretreatment and recognition often are insufficiently robust to be

applied in a natural environment where lighting conditions are very variable.

Furthermore these solutions often use too much resources (computational power, energy, ...) for

embedded systems with low resources.

Where traditional solutions are insufficient the human visual system is less sensitive toenvironmental conditions and often is more robust.

The proposed approach in this thesis is inspired by the human visual system to propose more

robust processing solutions.

We propose to study an adaptive recognition system integrating neurons associated with

conventional processing systems based on human visual system.

The aim of this thesis is to study neuro-inspired processing chains from the existing literature

implementable on embedded processors.

The results can be validated by an application of video surveillance that can identify people in real

time from a few references database.

To achieve this aim the thesis will include the steps:

Do the state of the art of algorithms based on human visual system

Propose pretreatment chains according to criteria of robustness and embeddability within

the algorithm architecture adequacy

Validate the results by a real time application of face recognition for the identification of

people listed in a few references database.
http://www.utt.fr/en/education/phd-studies.htmlhttp://www.utt.fr/en/education/phd-studies.htmlhttp://www.utt.fr/en/education/phd-studies/how-to-apply.htmlhttp://www.utt.fr/en/education/phd-studies/how-to-apply.htmlhttp://www.utt.fr/en/education/phd-studies/how-to-apply.htmlmailto:[email protected]:[email protected]:[email protected]:[email protected]://www.utt.fr/en/education/phd-studies/how-to-apply.htmlhttp://www.utt.fr/en/education/phd-studies.html

research projects a 2012

Documents