92 documents

Thesis: “Design and development of new gene delivery systems for the treatment of autoimmune diseases”

Graduate School: Natural and Engineering Sciences
PhD programme: Design and development of new gene delivery systems for the treatment of autoimmune diseases

Directeur : Stephanie Briançon
Co-directeur : Giovanna Lollo et David Kryza
Student : Andrea Albano

Start Date: 1st April r 2018
Duration: 36 months

Collection : Current thesis
Date : 2018

Combination of functional excipients and freeze drying process to improve stability and solubility of hydrophobic drugs

Student: Fabrice AMAN-POMMIER
Period 3,5 years
Staff: Ghania DEGOBERT

Keywords of the thesis: freeze drying, solubility, stability, thermodynamic, thermal analysis, FDM
Defended octobre 2017

Collection : Steady thesis
Date : 2017

The automatic control/regulation for nonlinear hyperbolic systems

- Name: Ngoc-Tu TRINH
- Graduate School : Électronique, Électrotechnique et Automatique de Lyon
- Directors: XU Cheng-Zhong, ANDRIEU Vincent et Hassan HAMMOURI.
-Beginning of the thesis: 01/10/2014
- Expected end of the thesis: 31/09/2017
- Funding: Thèse Ministériel.

The thesis will be supported on October 6, 2017.
Jury : Mr Coron Jean-Michel, Prof., Université Pierre et Marie Curie, Rapporteur
Mme Fridman Emilia, Prof., Tel Aviv University, Rapporteure
Mme D’Andrea-Novel Brigitte, Prof., Mines Paristech, Examinatrice
Mme Dos Santos Martins, Maître de Conférences, Université Lyon 1, Examinatrice
Mr Sallet Gauthier, Prof., Université de Lorraine, Examinateur
Mr Xu Cheng-Zhong, Prof., Université Lyon 1, Directeur de thèse
Mr Andrieu Vincent, CR CNRS, LAGEP, Co-directeur de thèse
Résumé en Français: Dans cette étude on s’intéresse à la dynamique d’une classe de systèmes non-linéaires décrits par des
équations aux dérivées partielles (EDP) du type hyperbolique. L’objectif de l’étude est de construire
des lois de contrôle par feedback dynamique de la sortie afin de stabiliser le système autour d’un point
d’équilibre d’une part, et, d’autre part, de réguler la sortie vers le point de consigne.
Nous considérons la classe des systèmes de dimension infinie gouvernés par des
EDP quasi-linéaires à deux variables indépendantes (une variable temporelle et une variable spatiale).
Le modèle mathématique des systèmes prend la forme suivante en termes de EDP :

où Ω désigne un intervalle connexe borné de R, l’état

Collection : Steady thesis
Date : 2017

Approche multi techniques des phénomènes de diffusion en hydrotraitement de distillat

Titre : Approche multi techniques des phénomènes de diffusion en hydrotraitement de distillat

École doctorale : ED206 école doctorale de chimie (chimie, procédés, environnement)

Etudiant : KOLITCHEFF Svetan

Directeur : TAYAKOUT-FAYOLLE Mélaz

Début thèse : 01/10/2013

Fin dethèse : 30/09/2016

Collection : Steady thesis
Date : 2017

Control and optimization of the architecture in a Heat Recovery System by Rankine cycle in a truck vehicle

Nom : Galuppo Francesco
Ecole doctorale : école doctorale EEA et en cotutelle avec l’ULg
Directeurs : M. Nadri et P. Dufour
Début de la thèse : 01/02/2017
Fin prévue de la thèse : 01/02/2020
Financement : contrat industriel CIFRE et Renault Trucks-Volvo

Collection : Current thesis
Date : 2017

Coupling of techniques / sensors and numerical modeling – control Process statistics

Graduate School: Ecole Doctorale de CHimie
Directors: Nida SHEIBAT OTHMAN
Beginning of the thesis: October 2017
Expected end of the thesis:October 2020
Funding: EZUS

Collection : Current thesis
Date : 2017

Defense of thesis in camera of Marion DUBALD: Development of antibiotic-based ophthalmic preparations for the treatment of local infections

After three years of doctoral thesis, Marion DUBALD is pleased to inform you that his thesis defense will take place on Wednesday 18th October at 14:00 in the Salle Jacques Bordet (CPE building).

Since the defense is held behind closed doors, it is unfortunately not possible to attend.

Jury :

Pr. Chambin Odile Université de Dijon, Rapporteure
Dr. Pellequer Yann, Université de Besançon, Rapporteur
Dr. Skiba Mohamed, Université de Rouen, Rapporteur
Pr. Bolzinger Marie-Alexandrine, Université Lyon 1, Examinatrice
Pr. Fessi Hatem, Université Lyon 1, Directeur de thèse
Dr. Bourgeois Sandrine, Université Lyon 1,Co-encadrante de thèse
Dr. Andrieu Véronique, Université d’Aix Marseille, Invitée
Dr. Claret Martine, Laboratoire Horus Pharma, Invitée

Collection : Steady thesis
Date : 2017

Development of nanoparticles by precipitation / crystallization in reverse microemulsion

Name: Ankou Fabrice OFRIDAM
Graduate School : Ecole doctorale de Chimie, Université Claude Bernard Lyon 1
Directors:Denis MANGIN, Emilie GAGNIERE
Beginning of the thesis 01/10/2017
Expected end of the thesis : 30/09/2020
Funding: Bourse Ministérielle

Collection : Current thesis
Date : 2017

Distributed control of dynamic systems networks. Application to a cogeneration system.

Title:Distributed control of dynamic systems networks. Application to a cogeneration system.
Bertrand Zitte
Françoise Couenne, Boussad Hamroun
1er octobre 2017
30 septembre 2020
Bourse ministérielle

Collection : Current thesis
Date : 2017

Hydrogel doped Nanoparticles for the local treatment of IBD

Name: ROSSO Annalisa
Graduate School: EDISS
Directors: Briançon Stéphanie, Lollo Giovanna
Beginning of the thesis: 02/10/2017
Expected end of the thesis: 2020
Funding: contrat doctoral

Collection : Current thesis
Date : 2017

Innovative membrane Crystallization contactor: Applications to diffusion/reaction processes

Name: Michaud Maïté
Graduate School: Chimie de Lyon
Directors: MANGIN Denis, CHARCOSSET Catherine, CHABANON Elodie
Beginning of the thesis: 01/01/2017
Expected end of the thesis: 01/01/2020
Funding: ANR project

Collection : Current thesis
Date : 2017

Magnetic nanoparticles for biomedical imaging

Name: VEGA CHACON Jaime Ricardo
Graduate School: école doctorale Chimie
Beginning of the thesis: March 2017 – March 2018
Expected end of the thesis: March 2020
Funding: Bourse Brésil

Collection : Current thesis
Date : 2017

Magnetic particles for in vitro

Tienrat, a soutenu le 21 Avril 2017 (co-direction avec la Thailand).
Graduate School:
Directors: A. ELaissari
Beginning of the thesis:15/04/2016
Expected end of the thesis:15/04/2017
Funding: Bourse thailande et France (GRG)

Collection : Steady thesis
Date : 2017

Performance of hybrid precipitation / microfiltration and nanofitration in the removal of iron for water purification

Rahma FAKHFEKH defensed her thesis the 23 June 2017.

The title of her thesis was:

Performance of hybrid precipitation / microfiltration and nanofitration in the removal of iron for water purification

She supported in Sfax (Tunisia), under a co-supervision.
LAGEP Director: Catherine CHARCOSSET

Collection : Steady thesis
Date : 2017

Preparation of different forms of encapsulation of natural antihyperpigmentants by membrane techniques

Name: Atallah
Graduate School: CHIMIE
Directors: Catherine CHARCOSSET
Beginning of the thesis: : décembre 2017
End expected of the thesis: : décembre 2020
Funding: Libanais

Collection : Current thesis
Date : 2017

Skin penetration and decontamination of actinides

Mrs Anissa TAZRART defended her thesis on 14 March 2017 at CEA Saclay,

the jury was composed of :
Civilité Nom Prénom Grade/qualité Etablissement d’exercice Rôle
M. Eric ANSOBORLO Chercheur CEA Marcoule Rapporteur
M. Philippe BERARD DR CEA Fontenay-aux-Roses Examinateur
Mme Marie-Alexandrine
PU Université Lyon 1 Co encadrante
Mme Stéphanie BRIANÇON PU Université Lyon 1 Directrice de thèse
Mme Isabelle DUBLINEAU Chercheure – HDR IRSN Fontenay-aux-Roses Rapporteure
Mme Nina GRIFFITHS Chercheure – HDR CEA Arpajon Co encadrante
M. Olivier PIOT PU Université de Reims Rapporteur

Collection : Steady thesis
Date : 2017

Study and development of new catalytic processes based on elastomeric and structured supports

Name:Birba Laura
Graduate School: Ecole Doctorale de CHimie
Directors:David Edouard
Beginning of the thesis: October 2017
Expected end of the thesis:October 2020
Funding: ANR/PolycatPuf

Collection : Current thesis
Date : 2017

Thesis defense by Marc-Aurèle LAGACHE: Analysis of inverse and direct problems in control theory

Marc-Aurèle Lagache is pleased to invite you to the rehearsal of his dissertation thesis next Thursday (05/10) at 15:45 in the room Bordet.
The defense will take place on Thursday 19 October in Toulon.

The jury is composed of:
Hassan Hammouri – President
Ugo Boscain – Rapporteur
Yacine Chitour – Rapporteur
Francesca Chittaro – Examiner
Elisabeth Murisasco – Examiner
Jean-Paul Gauthier – Director
Ulysse Serres – Co-Director

The overall context of this thesis is the study of inverse and direct problems in control theory. More specifically, the following three problems are studied.
The first one is an optimal control problem (direct approach). The aim is to give a time minimum systhesis for a kinematic model of a UAV flying at constant altitude with positive (non-necessarily constant) linear velocity in order to steer it to a fixed circle of minimum turning radius
The second problem deals with an inverse approach of optimal control. The aim is to develop theoretical methods in order to reconstruct the minimized criterion in an optimal control problem from a set of solution to this problem. The aim is also to characterize the « good » sets of trajectories leading to the reconstruction of the criterion. In the last fifteen years, there has been a renewed interest in inverse optimal control, especially in human motor behavior. Indeed, according to a well accepted paradigm in neurophysiology, among all possible movements, those actually accomplished are solutions of an optimization process.
The third problem tackles output feedback stabilization. We analyze, via a simple academic example from quantum control, the problem of dynamic output feedback stabilization, when the point where we want to stabilize corresponds to a control value that makes the system unobservable. The general idea is to perturb the stabilizing state feedback in order to ensure the observability of the system while stabilizing it to the target. The analysis of this example allows, secondly, to identify a general procedure that can be applied to a wider class of systems.

Collection : Steady thesis
Date : 2017

Thesis: liquid crystal alignment layer

Title: liquid crystal alignment layer
Name: MISSAOUI Tayssir
Graduate School: ED Chimie
Directors: Yves CHEVALIER
Beginning of the thesis: 03/05/2017
Expected end of the thesis: 03/05/2020
Funding: Bourse Tunisie

Collection : Current thesis
Date : 2017

Thesis: Optimization of grade transition in polymerization of polyethylene in a fluidized bed reactor

: KARDOUS Sabine
Graduate School: ED Chimie
Directors: Nida SHEIBAT–OTHMAN
Beginning of the thesis:11/09/2017
Expected end of the thesis: 30/09/2020
Funding: projet ANR Thermopoly

Collection : Current thesis
Date : 2017

Thesis: biodegradable microparticles morphology sponge for therapeutic applications and cosmétotextile

Nadiah Zafar is pleased to invite you to her thesis defense entitled:

“Biodegradable microparticles sponge morphology for therapeutic applications and cosmétotextile”

The defense will take place Monday, May 23, 2016 at 14h in the Jacques Bordet room.

Collection : Steady thesis
Date : 2016

Caracterisation and modelisation of drying process of impregnated microsphere by sublimation in rotating drum

Name: Mesnier Aline
Graduate School: ED de chimie
Directors: PECZALSKI Roman et VESSOT-CRASTES Severine
Beginning of the thesis: 01/03/2016
Expected end of the thesis:  01/03/2019
Funding: Thèse industrielle

Collection : Current thesis
Date : 2016

Conception et modélisation d’une installation de dessalement d’eau de mer par distillation en régime transitoire

Name: Laura GUIMARD
Graduate School: : Chimie Lyon 1
Directors : Christian JALLUT
Beginning of the thesis: : 4/01/16
Expected end of the thesis : 31/12/2018
Funding: CEA

Collection : Current thesis
Date : 2016

Design, scale-up and optimization of double emulsion processes

Graduate School:
Directors: Nida Othman-Sheibat
Beginning of the thesis: 01 -05-2016
Expected end of the thesis:01 -05-2019
Funding: European Commission for program H2020-MSCA-ITN-2015

Collection : Current thesis
Date : 2016

Kinetic modeling of biomolecular capture processes involved in molecular recognition reaction supported

Name: Robin Maeleen
Graduate School: ED Chimie Lyon
Directors: TAYAKOUT FAYOLLE Mélaz, PITAULT Isabelle, JALLUT Christian
Beginning of the thesis:avril 2016
Expected end of the thesis: avril 2019
Funding:CIFRE, Biomérieux

Collection : Current thesis
Date : 2016

Observation, diagnostic and control of nonlinear systems

  • Auteur : Mariem Sahnoun, Encadré par Mickael Rodrigues, Hassan Hammouri
  • Soutenance prévue : Depuis le 1er septembre 2010
  • Financement : Bourse ministérielle de l’université de Lyon

Collection : Steady thesis
Date : 2016

Optimization of the Rankine Cycke and its use for trucks

  • Auteur : Vincent Grelet, Encadré par Pascal Dufour, Madiha Nadri
  • Soutenance prévue : Depuis le 1er octobre 2012
  • Financement : Thèse avec bourse CIFRE et Renault Trucks-Volvo

L’évolution croissante du prix des carburants ainsi que les normes antipollution de plus enplus drastiques obligent les fabricants de véhicules commerciaux à développer des solutions innovantes pour réduire la consommation de carburant. Dans cet objectif, comme une grande partie de l’énergie contenue dans le carburant est directement relâchée à l’ambient sous forme de chaleur, celle-ci peut être valorisée et transformée via un cycle thermodynamique secondaire. Dans ce cadre, l’importante utilisation du cycle de Rankine à travers le monde en font un candidat naturel pour une implémentation dans un véhicule. Mais contrairement à une utilisation stationnaire, de nombreux obstacles se dressent pour une intégration totale dans un poids lourd. De nombreuses études ont été menées ces trente dernières années afin de déterminer le potentiel réel d’un tel système une fois embarqué à bord d’un véhicule. Les nombreuses sources de chaleur valorisables, les contraintes inhérentes à l’application embarquée ou encore les forts régimes transitoires induits par l’utilisation du camion doivent mener à une optimisation à la fois de l’architecture du système ainsi que de son système de contrôle. L’optimisation du système mène à un choix en terme de sources chaudes et froides, de topologie, de fluide de travail ainsi que de dimensionnement des composants afin de maximiser les performances. Le système de contrôle joue lui un rôle primordial afin de tirer un bénéfice maximum d’un tel système connaissant ses limites physiques ainsi que d’assurer une utilisation efficace. Dans cette thèse, une méthodologie de conception d’un système de valorisation des rejets thermiques est proposée. En se basant sur des simulations du véhicule complet basées sur un modèle détaillé, les thématiques de la sélection du fluide de travail, des sources chaudes et froides ainsi que l’optimisation des composants et du cycle sont approchées. Par la suite, le problème de contrôle en ligne de la surchauffe à la sortie de l’évaporateur est formalisé. En tenant compte des contraintes numériques d’implémentation, différentes stratégies de commande sont mises en place, allant du contrôleur PID à des structures plus avancées telle que la commande prédictive par modèle ou une loi de commande basée sur un observateur. La plupart de ces stratégies sont validées expérimentalement sur un banc d’essai mis en place durant la thèse.

Monsieur Roberto CIPOLLONE, Professeur Université de l’Aquila – Italie

Monsieur Pascal DUFOUR, Maître de Conférences HDR Université Claude Bernard Lyon 1 (co-encadrant)

Monsieur Pierre DUYSINX, Professeur Université de Liège – Belgique

Monsieur Vincent LEMORT, Professeur Assistant Université de Liège – Belgique (co-encadrant)

Madame Madiha NADRI-WOLF, Maître de Conférences Université Claude Bernard Lyon 1 (co-encadrant)

Monsieur Sorin OLARU, Professeur des Universités SUPELEC Paris

Monsieur Nicolas PETIT, Professeur Ecole des MINES PatisTech

Monsieur Frank WILLEMS, Professeur Associé Université technique d’Eindhoven – Pays-Bas


Monsieur Thomas REICHE, Volvo Trucks Global Trucks Technology Advanced Technology and Research, Saint Priest, France (co-encadrant industriel)

Collection : Steady thesis
Date : 2016

Preparation for small and large liposomes encapsulating the essential oil of clove free…

  • Etudiant : SEEBALY Carine
  • Diplôme : Doctorante Co-tutelle Franco Libanaise
  • Durée d’encadrement : Octobre 2012 – Décembre 2015
  • Encadrement : Charcosset Catherine, Pr H. Greige (Université Libanaise)

« Préparation à petite et grande échelle des liposomes encapsulant l’huile essentielle de clou de girofle libre et sous forme de complexe d’inclusion dansl’hydroxypropyl-β-cyclodextrine: Caractérisation des nanostructures et évaluation de leur effet antioxydant »

qui aura lieu le 5 Janvier 2016 à 11h (heure Liban), donc 10h (heure Française) à l’Université Libanaise.

La soutenance se fera à l’université Lyon depuis la salle de visioconférence qui se trouve au sous-sol du bâtiment Braconnier, le Mardi 5 Janvier à 10h.

Collection : Steady thesis
Date : 2016

Robust approaches for the observation of nonlinear systems and application to predictive control of a biological system.

Name: Francisco González de Cossío
Graduate School: : ED EEA
Directors: M. Nadri et P. Dufour
Beginning of the thesis: : 01/10/2016
Expected end of the thesis : 01/10/2019
Funding: Thèse sur bourse doctorale

Collection : Current thesis
Date : 2016

Synthèse et caractérisation de particules de polymères iodés et utilisation comme agent de contraste pour l’observation par scanner spectral

Graduate School:  Ecole Doctorale de Chimie de l’Université de Lyon
Directors: Yves CHEVALIER et Hatem FESSI
Beginning of the thesis: 15/01/2016
Expected end of the thesis: 15/01/2019 (3ans)
Funding: Thèse Européenne

Collection : Current thesis
Date : 2016

Thesis Robin LAFFICHER

Robin LAFFICHER a soutenu le 1er décembre 2016 (directeur de thèse François Puel)

Collection : Steady thesis
Date : 2016

Thesis: Protective nanoparticles and encapsulation

Responsible : A. ELaissari
TitreThese : Protective nanoparticles and encapsulation
FundingThese : Lebanon
DiplomeType : ScholarshipEtrg
DurationFrame : 36

Collection : Current thesis
Date : 2016

Thesis: ” Evaluation of the efficacy of CeO2 for the degradation and skin decontamination of an organophosphorus compound, Paraoxon”

Alicia Salerno defend her thesis Monday, September 19 at 14 pm in the conference room of the library of the Rockefeller site.


The organophosphorus nerve agents form part of chemical agents which pose the NRBC threat (nuclear, radio, biological, chemical). These agents can get into the body by inhalation, ingestion or skin absorption. The main route of chemical agent contamination is skin penetration, especially for VX which is low volatile. Decontamination of unprotected skin areas is crucial to prevent excessive absorption of toxic. This work aimed at evaluating the ability of cerium oxide nanoparticles to adsorb and degrade organophosphorus compounds by using an organophosphorus pesticide, Paraoxon, and an in vitro model, pig-ear skin. The results showed that ceria, in powder form, degraded the Paraoxon but did not allow to reduce its absorption through the skin. Liquid forms containing ceria (aqueous suspension, Pickering emulsion) have been formulated in order to avoid the dispersion of particles in the air during its use. While liquid formulations allow more efficient removal of Paraoxon during decontamination process, the degradation activity of ceria was low. The influence of the synthesis conditions on the physicochemical properties of ceria linked to degradation efficiency of nanoparticles has been studied. The results showed that specific surface area is the key parameter and that the application protocol of decontaminants must be adapted.

Collection : Steady thesis
Date : 2016

Thesis: Adaptive observers for online identification and observation of linear systems.

C. Afri has the great pleasure to invite you to his defense of thesis titled:

“Adaptive Observers for Online Identification and Observation
Linear systems. “

The defense will take place on Tuesday, December 13, 2016, at 10:00 am
The amphitheater Grignard at the Victor GRIGNARD Building of the Campus de la Doua.

The jury will consist of:
Mme Sophie Tarbouriech, DR CNRS, LAAS-CNRS Rapporteur
Mr Gildas Besançon, Prof., GIPSA LAB Rapporteur
Mme Françoise Couenne, CR CNRS, LAGEP Examinatrice
Mr Bogdan Marinescu, Prof., IRCCyN Examinateur
Mr Pascal Dufour, Maître de Conférences, LAGEP Directeur de thèse
Mr Vincent Andrieu, CR CNRS, LAGEP Co-Encadrant
Mr Laurent Bako, Maître de Conférences, ECL-INSA Lyon Co-Encadrant

In this thesis, we study the problem of identification of a linear
dynamical system. First, we survey various methods that have been
developed in the literature. We focus more particularly on methods named
adaptive observers. Secondly we present an approach which combines
subspace identification methods and adaptive observers. This new method is
interesting since it allows us to identify MIMO systems in an arbitrary
basis. The convergence of this algorithm is demonstrated using the
persistent excitation notions. In the third chapter we introduce a new
method that is inspired from nonlinear Luenberger observers developed in
recent years. This new algorithm is different from the existing algorithms
since the parameters and the system status are estimated simultaneously.
We demonstrate the robustness of this approach. The convergence of the
algorithm is obtained if the system inputs satisfy a differential
hypothesis. All these algorithms are evaluated and implemented on an
experimental bench.

Keywords :

Dynamical model – Linear system – nonlinear system –State observer –
Adaptive observer – Subspace approach – Linear Luenberger observers –
Nonlinear Luenberger observers Linear model – Lyapunov stability.

Collection : Steady thesis
Date : 2016

Thesis: Development of the mixed hydroxypropyl-β-cyclodextrin / liposome system for the encapsulation of the constituents of essential oils

Riham GHARIB will support his thesis on December 13, 2016, 10:30 am, videoconference room of the University Lyon 1, Bâtiment Braconnier
Title of the thesis: Development of the mixed hydroxypropyl-β-cyclodextrin / liposome system for the encapsulation of the constituents of essential oils
Framing : Catherine Charcosset and Hélène Greige
Thesis in co-supervision with the Lebanese University

Collection : Steady thesis
Date : 2016

Thesis: Dielectric and electrooptical study of a nematic liquid crystal cell.

Name:Missaoui Tayssir
Graduate School: of Monastir
Directors: Hafedh Ben Ouada and Yves Chevalier
Beginning of the thesis: 2016
Expected end of the thesis: 2018-2019
Funding: bourse d’étude tunisienne

Collection : Current thesis
Date : 2016

Thesis: Interaction of triterpenes with synthetic membranes and human albumin: Application to progestins and corticosteroids and to two pentacyclic structures

Rola Abboud is pleased to invite you to her thesis defense entitled “Interaction of triterpenes with synthetic membranes and human albumin: Application to progestins and corticosteroids and to two pentacyclic structures” under the direction of: Mme Hélène GREIGE and Mme Catherine CHARCOSSET.
The defense will take place on Thursday, December 1 at 2 pm in the amphitheater of the CNRS, 2 Avenue Albert Einstein, in Villeurbanne.

The triterpenoids are a large and structurally diverse group of natural products derived from squalene. Progesterone derivatives and glucocorticoids are a group of oxygenated triterpenes having a tetracyclic skeleton and identified for their therapeutic properties. Whereas, erythrodiol and uvaol are pentacyclic triterpenes, known for their beneficial effects on human diet. In this thesis, we studied their interaction with the membranes of lipid vesicles and with human serum albumin to better understand their pharmacological properties. We have prepared liposomes in the absence and presence of the mentioned molecules using the thin film hydration method. Differential scanning calorimetry (DSC), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR) and fluorescence polarization of 1,6-diphenyl- 1,3,5-hexatriene (DPH) were used to investigate the effect of triterpenes on the membrane fluidity.
Besides, we used fluorescence spectroscopy to study the binding of cholesterol, a series of progesterone derivatives and another series of glucocorticoids to albumin. Also, the binding of bilirubin (site I ligand) to albumin was studied in the absence and presence of the mentioned molecules. FTIR spectra of HSA and HSA-complexes were analyzed to evaluate the effect of a triterpene on the albumin secondary structure.
The results revealed that progesterone derivatives, glucocorticoids, erythrodiol and uvaol changed the physical properties of the bilayers. All the studied triterpenes interacted with the choline head group and the alkyl chains of phospholipids. Furthermore, the structural features control the interaction of triterpenes with the membrane and therefore modulate their effects on membrane fluidity.
Progesterone derivatives and glucocorticoids have been proven to bind moderately to albumin. Dydrogesterone showed the highest binding constant. Hydrophobic interactions and hydrogen bonds played a major role in stabilizing the complexes. Finally, our study demonstrated that cholesterol exhibited a much weaker interaction with albumin compared to progesterone derivatives and glucocorticoids.
Our work has led to a better understanding of triterpenes molecular mechanisms of their interaction with proteins and biological membranes and structural features controlling these interactions.

Keywords: Differential scanning calorimetry, erythrodiol, Fourier transform infrared spectroscopy, fluorescence polarization, fluorescence spectroscopy, glucocorticoids, liposomes, progesterone derivatives, Raman spectroscopy, uvaol.

Collection : Steady thesis
Date : 2016

Thesis: Multi-scale modeling of liquid/liquid dispersions

Name: Tanmoy Kanti DEB
Graduate School: ED Chimie
Directors: Nida OTHMAN
Beginning of the thesis: 03/06/2016
Expected end of the thesis: 01/07/2019

Collection : Current thesis
Date : 2016

Thesis: Optimizing Supervision and Control of a Rotating Industrial Process

Title : Optimizing Supervision and Control of a Rotating Industrial Process
Responsible : Hassan Hammouri
FinancingThese: THIMONNIER
DiplomeType: CIFRE
DurationDistrict: March 2016 – March 2019

Collection : Current thesis
Date : 2016

Thesis: Orodispersible films of tetrabenazine for pediatric administration

Zoé is pleased to invite you to her thesis defense entitled “Orodispersible films of tetrabenazine for pediatric administration”. Under the direction of: Mr. Hatem FESSI and Mrs. Sandrine BOURGEOIS.
The defense will take place on Tuesday 20 December at 14:00 in the amphitheater of Nuclear Physics on the Doua domain.

During the last decade, various strategies to develop innovating oral dosage forms for pediatric population were investigated in order to improve treatment efficiency, safety and acceptability. Among these new delivery systems, orodispersible films (ODF) present a great potential to enhance patient compliance. In ODF, drug is dissolved or dispersed in a hydrophilic film-forming polymer. Once the ODF is in the mouth, polymeric matrix disintegrates releasing the drug for local or systemic action. In this study, ODF, produced with the solvent casting/evaporation method, were developed to administer a drug of interest for pediatric population, the tetrabetazine (TBZ). Physicochemical and biopharmaceutic characterizations showed that ODF allowed a major improvement of TBZ dissolution profile in simulated saliva, mainly due to the amorphous state of the drug in ODF. ODF were identified as amorphous solid dispersion (SD) composed of both amorphous TBZ and polymer matrix. We demonstrated that the choice of the polymer plays an important role to maintain initial properties of the system and amorphous state stability over the time. H-bonding formation between TBZ and polymer is essential to assure the preservation of TBZ amorphous state. Moreover, the incorporation of cyclodextrins (CD), by generating H-bonding with TBZ, has extended its stability. By synergic effect, this association produces an improvement of drug release leading to promote bioavailability. As they are easy to swallow and allow enhancing treatment efficiency, ODF appear as suitable delivery forms for pediatric patients.

Key words: Pediatric oral dosage forms; Orodispersible films; Tetrabenazine; Hydroxypropylmethylcellulose; Polyvinylpyrrolidone; Pullulan; Amorphous solid dispersions; Cyclodextrins.

Collection : Steady thesis
Date : 2016

Thesis: Predictive control and fault tolerant control system applied to wind trubine

  • PhD student name : Mohamed Benlahrache
  • End: 8 jully 2016
  • Supervisor :  Sami Othman (director), Nida Sheibat-Othman
  • Summary of the PhD study : Predictive control ; observers ; wind tubines ; parameter identification ; statistical methods

In this thesis, model predictive control (MPC) is used to control the wind turbine and to identify the faults that could occur. Since the computation time in the MPC strategy is high, its use in real time fast systems may become unfeasable. To overcome this difficulty, the MPC control inputs are parametrized by Laguerre functions (LMPC) or Kautz functions (KMPC). This
allowed decreasing the computation time by 33% compared to non-parametrized MPC. The min-max MPC approach is also considered in order to render the control strategy robust to parametric uncertainties and faults scenarios.

These control strategies are evaluated on a wind turbine model with a multi-input (pitch angle and generator torque) / multi- output (generator power and generator speed) control, with constraints on inputs and outputs. These results are discussed in Chapter IV.

In Chapter V, the Laguerre or Kautz parameterized MPC is reformulated with the objective of faults compensations. Indeed, if the faults are detected and estimated then it is possible to calculate the correction required to compensate these faults. This strategy becomes interesting from a wind turbine is operated with a controller that is not aimed to be changed for security or cost reasons, and the objective of the operator is only to compensate actuator or sensor faults. In these simulations, an available benchmark was used with the controller implemented in it.

Collection : Steady thesis
Date : 2016

Thesis: Synthesis latex magnetic submicron and functionality for applications in biosensor

TALHA Jamshaid is pleased to invite you to his thesis defense entitled:

“Magnetic submicron latex synthesis and functionalized for applications in biosensor.”

The defense will take place May 24, 2016 at 10 am in the ground floor in ISA
(You can easily approach the place by 5, rue de la Doua 69100 Villeurbanne)

Composition du jury :
Madame Stéphanie BRIANÇON, Professeur des Universités
Université Claude Bernard Lyon 1
Monsieur Benjamin CARBONNIER, Professeur des Universités
Université Paris-Est
Monsieur Mohamed Mehdi CHEHIMI, Directeur de Recherche
CNRS Equipe SCP, Université Paris-Est
Monsieur Abdelhamid ELAISSARI, Directeur de Recherche
CNRS UMR 5007 LAGEP Villeurbanne
Monsieur Abdelhamid ERRACHID EL SALHI, Professeur des Universités
Université Claude Bernard Lyon 1
Monsieur Ali LAAYOUN, Chercheur
BioMérieux SA, Grenoble
Madame Salima SAIDI, Professeur
Université d’Oran – Algérie

Collection : Steady thesis
Date : 2016

Towards a better understanding and control of polymorphism.

Summary of the PhD study 

  • PhD student name: Y. TAHRI
  • Years :  01/2013 - 12/2015
  • Supervisors: Cotutelle entre l’Université Lyon 1 et l’Université Mohammed V de Rabat., E. GAGNIERE, D. MANGIN, T. BOUNAHMIDI (EMI, Université Mohammed V, Agdal-Rabat)

Defense: September 15 at 3 p.m. in Mohammdia Engineering School in Rabat.
I wish also to invite you to my presentation on Monday 26 September at 10
a.m. in the Jacques Bordet room in LAGEP. Looking forward seeing you.

Title :
Toward a better understanding of polymorph crystallization in solution: Experimental study and modeling using population balance equation and kinetic equations

Abstract :
The Ostwald rule of stages is conventionally used to explain the crystallization behavior of a polymorphic system. It states that the metastable phase first appears and undergoes a polymorphic transition toward the stable phase, in a second step. The Classical models, which only consider nucleation and growth, fail to reflect the kinetic advantage of the metastable phase formulated by Ostwald’s rule. Hence, this work intends to study and better understand the crystallization of a polymorphic system, taking into account the Ostwald ripening mechanism, usually neglected. A model compound, L-Glutamic acid, is chosen for the experimental study in agitated and stagnant conditions. Two numerical models, one based on the population balance equation and the other based on the kinetic equations, are developed to simulate the behavior of that polymorphic system, observed experimentally. A qualitative comparison between these two models is proposed. The model that relates the population balance equation does not permit correct implementation of all the mechanisms. Conversely, the model based on the kinetic equations highlights the effect of the ripening mechanism on the competition between the two polymorphic phases and allows us to propose a new explanation of the Ostwald rule of stages.

Collection : Steady thesis
Date : 2016

Transformation Induced during an Industrial Process (TIPI) direct compression: Polymorphic Transition of caffeine and physical properties of the tablets

Etudiant : Audrey JUBAN
Durée d’encadrement : 2013-2016
Encadrement : François PUEL (directeur) Stéphanie BRIANCON
Résumé de la thèse : compression directe de poudres pharmaceutiques, principe actif modèle : caféine, transitions polymorphiques
Abstract :

Direct compression process is widely used in the pharmaceutical industry for tablet manufacturing. This work is dedicated to the study of the polymorphic transformation induced by a direct compression process, and its impact on tablet mechanical properties. The main objective is to improve the understanding of the phase transition of caffeine Form I into Form II occurring during the direct compression process, and whether it has an impact on the tablet tensile strength. In this way, several studies have been conducted on the impact of operating conditions on the polymorphic transformation of a model active pharmaceutical ingredient (API) and on few physical properties of the tablets.

The use of a compression simulator Styl’One Classique (Médel’Pharm) and a fatigue equipment (Instron®) for the manufacture of tablets, allowed studying two process parameters (compression load and compression speed) and two formulation parameters (dilution of the API and nature of the diluent). Caffeine phase transitions have been evaluated by differential scanning calorimetry (DSC). Moreover, during several months after tableting, kinetic studies were conducted in order to observe the influence of these parameters on the polymorphic transition of the anhydrous caffeine Form I into Form II in tablets during storage. Finally, the analysis of the transition mechanism of this API was performed thanks to a stretched exponential law, derived from the Johnson-Melh-Avrami model.

The tensile strength of tablets (global property) was measured by a diametral compression test and their surface hardness (local property) by nanoindentation. A first predictive model for tablet tensile strength according to the caffeine content was developed. The compression cycle characteristics calculated from the data recording with the compression simulator allowed analyzing the behavior of different blends during the compression process. A second model for predicting the tensile strength was then established.

Collection : Steady thesis
Date : 2016

Wastewater treatment by freezing on cold wall

Student: Thouaiba HTIRA-EZZI
Period : nov 2012- janv 2016
Staff:: Denis Mangin (Director), Claudia Cogné, Emilie Gagnière
Keywords of the thesis:: This work aims at developing and optimizing a pilot crystallizer of wastewater treatment on a cooled wall. A statistical model has allowed quantifying the role of the process parameters affecting ice purity. Moreover, a numerical model has been developed to understand the thermophysical phenomena and to secure the scale-up.

Thouaiba Htira a soutenu sa thèse le 23 septembre à Lyon, à 10h dans l’amphithéâtre de la bibliothèque universitaire.

Collection : Steady thesis
Date : 2016

Antimicrobial agent microencapsulation for the development of functionalized primary containers.

  • Etudiant :  BILE Jessica
  • Diplôme : Thèse FUI
  • Durée d’encadrement :  Octobre 2012 – Octobre 2015
  • Encadrement : Chevalier yves, Bolzinger M.A.

Antimicrobial agent microencapsulation for the development of functionalized primary containers.

Nowadays there is an urgent need of cosmetic products containing low amounts of preservatives which represents a real technological challenge.
In this context, the primary container plays a key role and has to be source of proposals. The objective of this study is to realize an active
packaging containing coated thin films with embedded antimicrobial microparticles. The aim of this functionalized primary container is to
ensure the formulation preservation at specific areas which are prone to contaminations. Thanks to the localized action of the active packaging the
antimicrobial agent concentration into the bulk of the formulation will be reduced to the minimal amount necessary to ensure the product protection.
First, this work focused on the formulation of microparticles loaded with antimicrobial agent using the emulsion/solvent evaporation method. Several
morphologies have been obtained with non-smooth microparticles characterized by scars and defects, roughness and holes. The parameters
and the physico-chemical mechanisms involved in these morphological deteriorations have been identified and discussed. It has been shown that
the formulation and processing parameters as the polymer mass and molar mass, the surfactant as well as the speed and shear rate of the propeller
play a key role in the final microparticles surface states. This study proved that there is a competition between solvent evaporation and the
coalescence of emulsion droplets which is responsible for the morphological degradations. Following this study, the resulting microspheres loaded with phenylethyl alcohol were dispersed in a binder and coated as thin films of various thicknesses by the dip-coating method at the polyolefin surface. It has been measured that the use of microparticles slows the antimicrobial agent diffusion by increasing the number of polymeric matrices that have to be crossed in order to reach the external medium. Such thin films resulted in an antimicrobial agent delivery up to 3 months which is 15 times higher than the delivery
obtained for the non-encapsulated antimicrobial agent. The antimicrobial activity of the phenylethyl alcohol in an emulsion has also been investigated. The phenylethyl alcohol partition between the water phase, the oil phase and the micellar phase of an emulsion has been measured.
These results led to the development of a mathematical model calculating the fraction of free antimicrobial agent present in the aqueous phase. It has been correlated with emulsion dosages and microbiological measurements using the five microorganisms of the challenge test during 14 days. It has been demonstrated that calculations enable the prediction of the antimicrobial agent concentration needed to ensure the antimicrobial protection. In particular, this work proved that the phenylethyl alcohol quantity necessary for antimicrobial protection is respectively 1.6 and 4.3 times higher for a micellar solution and an emulsion compared to an aqueous solution.

Microencapsulation by solvent evaporation, preservative, antimicrobial thin film, drug delivery, phenylethyl alcohol, antimicrobial active packaging

Collection : Steady thesis
Date : 2015

Filtration and drainage actinide oxalates: Modeling and Optimization

Summary of the PhD study 

  • PhD student name: D BOURCIER
  • Years :  2012-2015
  • Supervisors: F. PUEL, D. COLSON

The defense was held Wednesday, October 28, 2015 at 14h in the Small CPE Lyon Amphitheatre (located on the area of Doua, CPE building, 43 Boulevard du 11 Novembre 1918 69100 Villeurbanne).

The jury:
M. Eugène Vorobiev (PU – UTC Compiègne, Rapporteur)
M. Herve Muhr (Directeur de Recherches LRGP Nancy, Rapporteur)

M. Jean-Pierre Féraud (Ingénieur de Recherche, CEA Marcoule)
M. Didier Colson (MCU – UCBL)
M. François Puel (PU – UCBL et CentraleSupelec – Directeur de Thèse)
M. Pascal Ginisty (Dr – Responsable d’Etudes IFTS)
M. Roman Peczalski (PU – UCBL)
M. Nicolas Vigier (Dr – Areva NC)

Collection : Steady thesis
Date : 2015


  • Etudiant : Emmanuelle LEMERY
  • Devenir: CDD URGO
  • Soutenue le 23/03/2015
  • Encadrement : Bolzinger, Briançon Stéphanie

Creams, shampoo, soaps, shower gel, all these cosmetics products, daily used; have in common the presence of an essential raw material for their formulation: the surfactant or emulsifier. Those molecules are often in contact with the skin. Indeed, thanks to its special amphiphilic structure, surfactant helps the stabilization of emulsion, the foam production and brings detergent properties to cosmetic cleansers, solubilizing fat and dirt present at the skin surface. Those molecules can also interact with skin components.

One of the first evidence of the interaction between the surfactant and the skin is the clinical signs observed following a chronical or a long exposition to formula containing a high rate of surfactants. These molecules are now well-known to initiate irritant contact dermatitis and are real public health matters concerning professional diseases to detergents. However, considering the multitude of surfactants on the market, action mechanisms of surfactants on the skin are still not well known, especially for nonionic surfactants, widely used in skin care products and considered as very mild. Sodium lauryl sulfate, an anionic surfactant, is nowadays a model molecule widely studied.

Skin toxicity is often linked to the interaction of the surfactant with the skin proteins, charged molecules. According to that, ionic surfactants are considered to be the more toxic for the skin. Furthermore, the monomeric form of the surfactant is described to be the entity responsible for skin toxicity because it can easily insert into the lipid bilayers of the stratum corneum and reach the deeper layers of the skin compare to the micelles. The surfactant’s toxicity is also linked to its critical micellar concentration.

The aim of this research project was to improve the knowledge on several physicochemical properties of numerous surfactants classes to better understand their interactions and effects on the skin. Several levels of study have been developed. After a detailed physicochemical analysis of surfactants, in vitro experiments helped to evaluate the surfactant’s effect on skin toxicity. The barrier function of the skin was study (surface/detergent properties, lipid matrix organization and the evaluation of the lipid extraction by surfactants) through ex vivo experiments. Finally, skin hydration measurements were made in vivo.

Our studies showed a noteworthy toxicity of some nonionic surfactants, on the opposite, some ionic surfactants were very mild. Parameters known in literature such as CMC or the charges of the surfactants were questioned. Several explanations were highlighted considering the surfactant organization in water and its behavior on the skin barrier, bringing new areas for future research to have a better understanding of the effect of surfactant on the skin.

Moreover, skin toxicity could be linked to one of the three levels studied on skin barrier: the lipid matrix disorganization.

Collection : Steady thesis
Date : 2015

Thermodynamic approach for the control of a non-linear infinite-dimensional system: application to tubular reactors

This thesis will deal on Port Hamiltonian modeling, reduction and control of infinite dimensional thermodynamical system. In first time, the work will consist on the Port-Hamiltonian formulation of a benchmark tubular reactor. Then the stabilization will be proposed by using the passivity based approach and Thermodynamics issued Lyapunov functions.

  • Author : Weijun Zhou, direction de thèse : F. Couenne, B. Hamroun
  • Defense scheduled : septembre 2014
  • Defensed : 22/06/2015
  • Financed by allocation ministère


  • Boussad Hamroun
  • Francoise Couenne
  • Denis Dochain
  • Bernhard Maschke
  • Laurent Lefevre
  • Didier Georges
  • Yann Le Gorrec

The main objective of this thesis consists to investigate the problem of modelling and control of a nonlinear parameter distributed thermodynamic system: the tubular reactor. We address the control problem of this nonlinear system relying on the
thermodynamic properties of the process. This approach requires using the classical extensive variables as the state variables. We use the thermodynamic availability as well as the reduced thermodynamic availability (this function is formed from some terms of the thermodynamic availability) as Lyapunov functions in order to asymptotically stabilize the tubular reactor around a steady profile. The distributed temperature of the jacket is the control variable. Some simulations illustrate these results as well as the efficiency of the control in presence of perturbations.

Next we study the Port Hamiltonian representation of irreversible infinite dimensional systems. We propose a Stokes-Dirac structure of a reaction- diffusion system by means of the extension of the vectors of the flux and effort variables. We illustrate this approach on the example of the reaction diffusion system. For this latter we use the internal energy as well as the opposite of the entropy to obtain Stokes-Dirac structures. We propose also a pseudo-Hamiltonian representation for the two Hamiltonians. Finally we tackle the boundary control problem. The objective is to study the existence of solutions associated to a linearized model of the tubular reactor controlled to the boundary.

Keywords :
Infinite-dimensional systems, Tubular reactors, Irreversible Thermodynamics, Lyapunov function, Distributed control, Port Hamiltonian system

Collection : Steady thesis
Date : 2015

Developement and optimization of freeze drying cycles for encapsulated probiotic yeast

- Etudiant: Pierre Verlhac
- école doctorale : Ecole doctorale de Chimie de Lyon
- directeurs : Séverine Vessot Crastes; Ghania Degobert; Roman Peczalski; Claudia Cogné; Julien Andrieu
- début de thèse : 09 Novembre 2015
- fin de thèse prévue : septembre/Novembre 2018
- financement : Bourse ministérielle

Collection : Current thesis
Date : 2015

Dynamic modeling of a heat pump system coupled to a PCM storage tank – systemic approach and experimental validation

Le modèle qui sera développé permettra de connaître le comportement dynamique du dispositif complet et servira d’outil d’aide à la conception du système de commande de l’ensemble. Le modèle développé sera basé sur une approche thermodynamique et sur l’application des principes de conservation (matière, énergie, quantité de mouvement). Des expérimentations réalisées au CNAM et chez CIAT permettront de valider les résultats de simulation.

  • Auteur : Jing WU direction de thèse : C. Jallut, E. Gagnière
  • Soutenance  : 8 octobre 2015
  • Financement : ANR ACLIRSYS 2011-2015


In the area of buildings refrigeration, the use of thermal energy storage coupled with heat pump is a significant way for reducing the operating costs and optimizing the design of equipment. A prototype of refrigeration-PCM (Phase Change Material) energy storage system is built and implemented within the framework of the project ACLIRSYS (Advanced Control for Low Inertia Refrigeration Systems), funded by the French National Research Agency. The objective of my PhD thesis is to propose a dynamical physical model for the complete system.

Within the evaporator and condenser of the heat pump, the refrigerant can be liquid, vapor or mixture of both, while the storage media can be solid, liquid or a mixture of both. Therefore, it is necessary to consider the discrete events associated to phase changes in order to solve the energy and mass balances in different configurations. In this work, static models are used for the compressor and the expansion valve of the heat pump. The heat exchangers of the heat pump and the storage models are based on a representation of the fluid flows by a cascade of Continuous Stirred Tank Reactors (CSTRs). In order to assure the continuity of system evolution, the switching mechanism between different configurations is established. This switching is performed by matrix operations, which permit to achieve a global and very compact representation of the system. The thermodynamic properties of the refrigerant and their partial derivatives are analytically determined by using an equation of state. Two versions of the model for the storage are proposed. A simplified version where the supercooling is assumed to take place at a constant temperature and a more detailed version based on the population balance equations.

Experimental data from the prototype has been used to validate the developed model. Experiments in transient states were performed by varying the operating conditions. These date relate to the functioning of the heat pump alone, the storage alone and the coupled system. A very good agreement between the numerical results and experimental data was obtained.

Collection : Steady thesis
Date : 2015

Elimination du bore dans des eaux de mer par procédé couplé résines échangeuse d’ions et microfiltration

Etudiant : Assma ALHARATI

Thèse de Doctorat, Ecole Doctorale de Chimie, Université Claude Bernard Lyon 1

Titre : «Elimination du bore dans des eaux de mer par procédé couplé résines échangeuse d’ions et microfiltration»

Directeurs de Thèse : Catherine Charcosset et Koffi Fiaty

Début de la thèse : Janvier 2015

Collection : Current thesis
Date : 2015

Emulsion polymerization of modeling stabilized inorganic particles

  • PhD student name : Barthélemy Brunier
  • Years : 2013-2016
  • Supervisor :  Nida Sheibat-Othman (director)
  • Summary of the PhD study : Pickering stabilisation ; Laponite ; particle size distribution ; modeling nucleation and coagulation

Cette thèse est réalisée dans la cadre du projet ANR PickEP, sous la direction de Nida Othman, Elodie Bourgeat- Lami (C2P2) et Yves Chevalier.

Un résumé du travail de thèse est joint à la fin de ce mail.

La soutenance se tiendra le vendredi 4 décembre 2015 à 14h dans l’Amphi Jussieu ( bâtiment DARWIN, campus de la Doua).

Les membres de jury sont :

Dr. Salima Boutti – Arkema
Pr Nathalie Le Sauze – Université Paul Sabatier (LGC)
Pr. Christophe Serra – Université de Strasbourg (ICPEES)
Dr. Laurent Falk – CNRS (LRGP)
Dr. Koffi Fiaty – Université Claude Bernard Lyon 1 (LAGEP)
Dr. Nida Sheibat-Othman – Université Claude Bernard Lyon 1 (LAGEP)
Dr. Elodie Bourgeat-Lami – Université Claude Bernard Lyon 1 (C2P2)
Dr. Yves Chevalier – Université Claude Bernard Lyon 1 (LAGEP)


The aim of the present project is to develop a methodology for fundamental modeling of surfactant-free emulsion polymerization processes stabilized by inorganic particles, referred to as Pickering emulsion polymerization.

Modeling emulsion polymerization systems requires modeling the particle size distribution (PSD), which is an important end-use property of the latex. This PSD includes sub-models dedicated to particle nucleation,
mass transfer between the different phases (monomer, radicals, stabilizer), and particle coagulation. These models should preferably be individually identified and validated experimentally.

The first main part of the work is dedicated to the experimental study. This part can be divided in three parts. The first part describes the adsorption of inorganic particles on polymer without reaction.
Multilayer adsorption was observed and B.E.T. isotherm was able to describe this adsorption. The adsorption was found to be enhanced at higher ionic strength. The adsorption dynamics were found fast and therefore clay partitioning
can be considered at equilibrium during polymerization. The second part concerned the investigation of different reaction parameters on the particles number and reaction rate in ab initio polymerizations. The effect of mixing, initial monomer concentration
and initiator concentration were considered. Optimization of these conditions was useful for the modeling part. The last part described the differences between several Laponite grades through the ab initio emulsion polymerization of styrene.

The second main part of the manuscript focused on the modeling of the Pickering emulsion polymerization. The population balance model and average number of radicals balance were adapted regarding the effect of inorganic particles.
The growth of the polymer particles was optimized by fitting the models of radicals’ entry and desorption described available in literature to the experimental data. No modification was needed, which allowed us to conclude that the clay had no influence on radical exchange.
However, Laponite stabilization played an important role in polymer particles production. Coagulative nucleation model was able to describe the nucleation rate and predict the total number of particles.

Collection : Steady thesis
Date : 2015

Improved performance on reducing emissions of greenhouse gases and the oil content of the effluent discharged in Congo

  • Student: Bob Cherubin Emerson MOMBO
  • Period : 2015-2018
  • Staff: K. FIATY (directeur)
  • Thèse en co-tutelle avec l’université Marien N’Gouabi de Brazzaville
  • Funding: une bourse EGIDE octroyé par le gouvernement français géré par Campus France

  • Collection : Current thesis
    Date : 2015

    Microalgae thermal drying intensification by association with capillary draining.

    Student: Mme Thouraya GHNIMI
    Period : 3 ans, début en 2015
    Staff: M. Mohamed BAGANE (ENIG, Tunisie), M. Lamine HASSINI (FST,
    Tunisie), Mme Hélène DESMORIEUX (Lagep), M. Roman PECZALSKI (Lagep).

    Purpose and objectives of the thesis:
    Combining thermal drying and capillary draining may allow for: processing a thicker biomass layer, increasing the drying rate, applying a lower temperature heating and thus finally reducing the energy consumption.
    The aim of the thesis is to study experimentally the combined thermal (convective or radiative heating) and capillary process, to identify the rate controlling drying mechanisms, to model the heat and water transfer, to evaluate the efficiency of the process and to scale it up for industrial purposes.

    Collection : Current thesis
    Date : 2015

    Nouvelle approche de vectorisation ciblant les macrophages en vue d’immunothérapie anti-tumorale

    Titre : Nouvelle approche de vectorisation ciblant les macrophages en vue d’immunothérapie anti-tumorale
    Etudiant : Sabrina NICOLAS
    Ecole doctorale : EDISS
    Directeur de thèse: BOLZINGER Marie-Alexandrine (Pr)
    Co-encadrants : FESSI Hatem (PR), BOURGEOIS Sandrine (MCU) et ALMOUAZEN Eyad (MCU)
    Début thèse : 1.10.2015
    Fin de thèse prévu : 30.09.2018

    Collection : Current thesis
    Date : 2015

    Nouvelles applications des nanoparticules organiques: de la vectorisation d’un mélange d’actifs à travers la peau jusqu’au développement d’un test de diagnostique in vitro de l’allergie aux parfums

    • Etudiant :  CORTIAL Angèle
    • Diplôme : Thèse MENRT
    • Durée d’encadrement :  oct 2014
    • Encadrement : Briançon S., Nicolas J.F. (INSERM U851)

    Collection : Steady thesis
    Date : 2015

    Numerical simulation and experimental study of membrane chromatography for biomolecule separation

    • Etudiant :  TEEPAKORN Chalore
    • Diplôme : Doctorant Bourse Thaïlande
    • Durée d’encadrement :  Octobre 2012 – Décembre 2015
    • Encadrement : Charcosset Catherine, Koffi Fiaty

    Chalore Tipakorn is pleased to invite you to his thesis defense entitled “Numerical simulation and experimental study of membrane chromatography for the separation of biomolecules.”

    It will be held at 14:00 Wednesday, December 16, 2015, at the conference room of the University Library.
    This thesis is done under the direction of Ms. Catherine and Mr. Koffi Fiaty Charcosset. For more details, you can find the thesis summary, below.


    Membrane chromatography (MC) is an alternative to traditional resin packed columns chromatography. The solute mass transport in the membrane occurs in convective through-pores rather than in stagnant fluid inside the pores of the resins particles, which is limited by the slow diffusive transport. MC offers the main advantage of reducing diffusion phenomena, shorter residence time and lowered pressures drops, and thus, facilitates rapid purification of large quantities of molecules. A wide range of chromatographic membranes involving different molecules retention mechanisms (ion exchange, affinity, etc…) is now commercialized. Despite their success, the influence of the geometry of the membrane chromatography devices remains relatively unexplored from a theoretical point of view. This doctoral thesis is aimed to clarify some ambiguous points related to this technique.

    Membrane chromatography, Ion exchange, Breakthrough curve, Dynamic binding capacity, Axial flow chromatography, Radial flow chromatography

    Collection : Steady thesis
    Date : 2015

    Parametric identification in closed loop by an optimal control law based on observability analysis.

    • Auteur : Jun Qian, Encadré par Pascal Dufour, Madiha Nadri
    • Soutenance prévue : Depuis le 1er mars 2012
    • Financement : Thèse avec bourse CIFRE et Acsysteme

    *Closed-loop parameter identification approach with an optimal control
    based on the observability analysis *

    For online parameter identification, the developed methods here allow to
    design online and in closed loop optimal inputs that enrich the
    information in the current experience. These methods are based on
    real-time measurements of the process, on a dynamic nonlinear (or linear)
    multi-variable model, on a sensitivity model of measurements with respect
    to the parameters to be estimated and a nonlinear observer. Analysis of
    observability and predictive control techniques are used to define the
    optimal control which is determined online by constrained optimization.
    Stabilization aspects are also studied (by adding fictitious constraints
    or by a Lyapunov technique). Finally, for the particular case of a first
    order linear system, the explicit control law is developed. Illustrative
    examples are processed via the ODOE4OPE software : a bio-reactor, a
    continuous stirred tank reactor and a delta wing. These examples help to
    see that the parameter estimation can be performed with good accuracy in a
    single and less costly experiment.

    Keywords: Online closed loop parameter identification, model based
    predictive control, observer, design of optimal experiment, observability,
    sensitivity model.

    Collection : Steady thesis
    Date : 2015

    Passivity Preserving Balanced Reduction for the Finite and Infinite Dimensional Port Hamiltonian Systems

    • Author :Yongxin WU, direction de thèse : B. Maschke, B. Hamroun
    • Defense scheduled : September 2015
    • Financed by: ANR-11-BS03-0002 project HAMECMOPSYS nov. 2011- nov. 2015

    La soutenance s’est tenu le lundi 7 décembre 2015 à 10h30 dans l’Amphi Thémis 9 (situé au bâtiment Thémis).


    In this thesis we have developed different structure preserving reduction methods for finite and infinite dimensional port Hamiltonian systems by using a balanced model reduction approach. In the first part we have defined a descriptor representation of port Hamiltonian systems with constraints. The balanced realization of the descriptor system has been used for reducing the port Hamiltonian descriptor system and conserving explicitly the constraint equations. In the second part, conditions have been derived on the weighting matrices of the LQG control problem such that the dynamical LQG controller is passive and has a port Hamiltonian realization. Two passive LQG control design methods have been suggested and one of them allows us to define a LQG balanced realization. Based on this realization, the effort constraint method has been used to reduce the LQG balanced port Hamiltonian system and obtain a reduced order passive LQG controller. In this way the closed-loop system is derived from the interconnection of 2 port Hamiltonian systems, hence the Hamiltonian structure has been preserved. In the third part, the proceeding results have been extended to a class of infinite dimensional port Hamiltonian system with bounded input operator. A passive LQG control design method for infinite dimensional port Hamiltonian system has been derived as by control by interconnection. Based on the balanced realization associated with this passive LQG control design, a finite dimensional approximation has been achieved and a reduced order passive LQG controller has been derived. As a consequence, the system in closed-loop with this reduced order LQG controller again admits a port Hamiltonian structure and satisfies the passivity.

    Collection : Steady thesis
    Date : 2015


    • Etudiant :  RIDEL Laure
    • Diplôme : Doctorant Thèse MENRT
    • Durée d’encadrement :  Octobre 2012 – Octobre 2015
    • Encadrement : Chevalier yves, Bolzinger M.A.


    Summary :
    Pickering emulsions are emulsions stabilized by solid particles in opposition to emulsifiers-stabilized emulsions. The stabilization of Pickering emulsions comes from a strong adsorption of solid particles at the oil-water interface that builds a rigid barrier against coalescence.

    The aim of this work was to understand, develop and optimize methods for the fabrication of different types of Pickering emulsions stabilized by silica nanoparticles. Three mains axes can be exposed: (i) Firstly, a theoretical approach on the physico-chemical interfacial phenomena of Pickering emulsions stabilized by non-aggregated individual silica nanoparticles. Adsorption as mono- or multi-layers can be reached depending the Oil/Silica ratio. Two behaviors were observed: At high oil/silica mass ratio, the oil/water interface was covered by a monolayer of non-aggregated silica particles. Stable emulsions were stabilized by a monolayer of silica particles at 54% coverage of the oil droplets surface. Oil droplet diameter depends on formulation parameters. Adsorption as multilayers was reached at lower oil/silica mass ratio and oil droplet diameter depends on fabrication process. (ii) Droplets diameters could be reduced thanks to various processes in order to obtain Pickering nanoemulsions, also called NanoPickering. The first step was to test the viability of such emulsions using a high energy process (sonication). Then, a low energy process (nanoprecipitation) was used. Stable Pickering nanoemulsions can be made on more than one month. However, the oil quantity obtained in the final media is low (less than 1wt%). (iii) In parallel, a new application was developed allowing the formulation of Pickering aerated emulsions, totally stabilized by nanoparticles. Two types of Pickering whipped emulsions can be made. One which has high air content or one which has a stable height, thanks to a gelification phenomenon. This occurs after a macroscopic change of state.

    All of these results confirm that Pickering emulsions offer the opportunity to discover new applications made by innovative processes. For instance, NanoPickering made by spontaneous emulsification, or Pickering whipped emulsion fully stabilized without emulsifiers. Moreover, theoretical approaches and interfacial phenomena studies are still current scientific questions.

    KEY WORD: Pickering emulsions, Interfacial, Monolayer, Multilayer, Nanoemulsions, NanoPickering, Sonication, Nanoprecipitation, Ouzo Effect, Pickering aerated emulsions, Non-aggregated individual silica nanoparticles.

    Collection : Steady thesis
    Date : 2015

    Preparation and Evaluation of submicron particles Theranostic for biomedical applications: imaging and therapy

    • Student: IQBAL Muhammad
    • Credit : Bourse Government of Pakistan
    • Degree: PhD Thesis Pakistan
    • coaching time October 2012 – December 2015
    • Framing: A. ELAISSARI

      “Preparation and Evaluation of submicron particles Theranostic for biomedical applications: imaging and therapy.”
      This thesis is done under the direction of Dr. Abdelhamid Elaissari and Professor Hatem Fessi.

      The defense will be held Friday, November 13, 2015 at 14h at the Jacques Bordet room.

      The objective of this study was to prepare and characterize multifunctional submicron particles used simultaneously
      for the diagnosis and treatment of many life-threatening diseases such as cancer. To do this, a systematic study was conducted to understand the mécaniqmes involved and optimize the process parameters double-emulsion solvent evaporation for the preparation of these particles. For in vitro imaging, fluorescent polymeric nanoparticles were encapsulated in a degradable matrix polycaprolactone using the method of the double emulsion solvent evaporation. For imaging in vivo, colloidal gold nanoparticles have been prepared and encapsulated by the same method and perfectly
      characterized. Finally, theranostics application, the gold nanoparticles (as a contrast agent) and a molecular active (hydrophilic
      Nefopam and hydrophobic benzyl benzoate) were encapsualés simultaneously in polycaprolactone particles. These multifunctional particles were characterized and evaluated as in vitro model of cutaneous penetration.

      Collection : Steady thesis
      Date : 2015

    Preparation of microbubbles by membrane contactors and their medical applications

    Title : Preparation of microbubbles by membrane contactors and their medical applications

    Etudiant Romain MELICH
    Directeur de thèse : Catherine Charcosset, e-mail :
    Co-directeur de thèse : Frédéric Padilla, e-mail :
    Début de thèse : 01 octobre 2015
    Fin de thèse : 31 septembre 2018

    The subject of this pH thesis is related to the preparation of microbubbles and nanobubbles by membrane processes. The effect of the process parameters (membrane pore size, membrane geometry, etc.) as well as a large range of formulation parameters (surfactant, lipid, gas, etc.) on the microbubbles and nanobubbles properties (size, stability, etc.) will be determined. The results obtained with the new techniques developed will be compared to existing methods. The obtained microbubbles and nanobubbles will be tested for biomedical applications of ultrasound like imagery and drug delivery. The thesis will be in collaboration with the Laboratoire Thérapie et Applications Ultrasonores (INSERM, Frédéric Padilla), specialized in the development and optimization of innovative ultrasound diagnostic and therapeutic strategies, especially for cancer treatment.

    Collection : Current thesis
    Date : 2015

    Récupération d’énergie par cycle de Rankine à bord d’un véhicule : commande et gestion énergétique.

    • Auteur : Johan Peralez, Encadré par Pascal Dufour, Madiha Nadri
    • Soutenance prévue : Mercredi 25 février 2015 à 10h00 sur le site d’IFP Energies Nouvelles à Solaize
    • Financement : Thèse de l’IFPEN

    Collection : Steady thesis
    Date : 2015

    The method by absorption with storage inter-seasonal solar intensified by the crystallization of the absorbent: research and thermodynamic characterization of new couples design the storage tank.

    • PhD student name: E. LEFEBVRE
    • Years :  10/2012 à 09/2015

    Emeline LEFEBVRE has the pleasure and honor to invite you to my thesis defense entitled “The method by absorption with storage inter-seasonal solar intensified by the crystallization of the absorbent: research and thermodynamic characterization of new couples design the storage tank. ” This thesis is made in the context of the ANR Project SEED (see summary below for details) under the direction of Aline AUROUX and Ms Simona Bennici of IRCELYON and Denis MANGIN and Mrs. Emilie GAGNIERE of LAGEP. The defense will be held Thursday, November 26, 2015 at 10am in the Amphi 7 Themis (Themis located in the building next to the building CPE).
    The use of solar energy as a renewable energy has been widely demonstrated since many years. Thermal solar energy storage is an interesting way of reducing gas emissions. This storage can be achieved using water vapor absorption-desorption in a binary system with a desiccant salt. The innovation of this project is the crystallization of the salt solution as its temperature falls under the storage temperature to optimize the storage capacity. A previous work was realized using LiBr as absorbent. In spite of its interesting efficiency, two major drawbacks have been underlined: its price and its low storage capacity. This work is dedicated
    to evaluate and characterize new potential candidates of absorbent usable in the industrial process. The first chapter presents a bibliography report of the various thermal energy processes. The second and third chapters display the thermodynamical properties of the selected binary systems, calculated from calorimetric and vapor pressure measurements, and calculated process parameters which lead to select the new absorbent. The fourth chapter is based on the study of the solid/liquid/gas equilibrium of the new binary system and of LiBr/H2O to characterize the crystallized phases in many different equilibrium states. Finally, the last chapter presents a preliminary study of the CFD modeling of the non-isothermal flow in the storage tank and the suggested geometries tested for the
    crystallization of KHCOO in the storage tank.

    Collection : Steady thesis
    Date : 2015

    Thesis: Improvement of the nutritional qualities of foods by encapsulation of natural antimicrobials.

    Titre de la thèse :Amélioration des qualités nutritionnelles des aliments par encapsulation des antimicrobiens naturels.
    Nom : Elissa EPHREM
    Ecole doctorale : Ecole doctorale de chimie de Lyon
    Directeurs : Chatherine CHARCOSSET
    Début de la thèse :Septembre 2015
    Fin prévue de la thèse :Fin 2018

    Collection : Current thesis
    Date : 2015

    Thesis: Optimization algorithm and nonlinear constraint problem of trajectories for industrial robot

    Title: Optimization algorithm and nonlinear constraint problem of trajectories for industrial robot

    Student:THAMMABANVONG Lattanavong

    Doctoral School: Electronics, Electrical Engineering and Automation EEA

    Director: Hammouri Hassan, Ahmed Fayez S.

    Thesis Beginning: October 2015

    Anticipated end of thesis: December 2018

    Collection : Current thesis
    Date : 2015

    Water depth identification

    Title: Water depth identification
    Name: Yang YU
    Graduate School: SCUT and Graduate School EEA Lyon
    Directors: Prof. Hai-Long PEI & Prof. Cheng-Zhong XU
    Beginning of the thesis: 09/2015
    Expected end of the thesis: 07/2018
    Funding: CSC (China Scholarship Council)

    Collection : Current thesis
    Date : 2015


    Student: Alexis Zenner
    Funding: Thèse CIFRE
    Period : 01/12/2014 au 01/12/2017
    Staff: David Edouard & Koffi Fiaty

    Keywords of the thesis: Propriétés de transport effectives dans un milieu poreux

    Collection : Current thesis
    Date : 2014

    Control of wind turbine

    • Auteur : Vu Hoang-Giang, Encadré par Hassan Hammouri,  Hamed Yahoui (Laboratoire Ampere)
    • Soutenance prévue : Depuis le 1er septembre 2011
    • Financement : Bourse vietnamienne
    • Devenir: Retour au Vietnam

    Collection : Steady thesis
    Date : 2014

    Développement de mousses cellulaires polyuréthanes pour l’intensification des procédés.

    Student: Louis Lefebvre
    Financement : Bourse Ministère (MENRT)
    Period : 01/10/2014 au 01/10/2017
    Staff: David Edouard

    Keywords of the thesis: Open cell foam

    Collection : Current thesis
    Date : 2014

    Elaboration de particules hybrides et anisotropiques

    • Etudiant :CHARIYA Kaewsaneha
    • Devenir: Retour en Thaïlande
    • Soutenue le le 27 Février 2014 à Bangkok
    • Encadrement :  A.   ElaissariP.  Tangboriboonrat, D. Polpanich (Mahidol University BangkokThailand

    Collection : Steady thesis
    Date : 2014

    L’encapsulation des biomolécules via la double émulsion

    • Etudiant :  IBRAHEEM Dima
    • Diplôme : Back in  Syrie
    • Soutenue/strong> :  07/05/2014
    • Encadrement : A. Elaissari, H.FESSI

    Collection : Steady thesis
    Date : 2014

    Manufacture of hybrid nanoparticles for dermal

    - Student : Augustine LALLOZ

    - Ecole doctorale : EDISS
    - Staff: Pr Stéphanie Briancon/Pr Marie Alexandrine Bolzinger
    ( en cotutelle avec l’université de Montréal : Pr Patrice Hidlgen et Pr Xavier Banquy)
    - début de thèse : 1ere inscription à l’UCBL en septembre 2015 (mais thèse
    débutée depuis septembre 2014 à l’Université de Montréal)
    - Soutenue : 31.08.2016

    Collection : Steady thesis
    Date : 2014

    Microencapsulation par coacervation complexe des protéines du lactosérum et de la gomme d’acacia

    • Student: ACH Delphine
    • Graduate School: Chimie
    • Directors: Yves Chevalier et Stéphanie Briançon, Nicolas J.F. (INSERM U851)
    • Beginning of the thesis: Avril 2011
    • End of the thesis: : Soutenue en Octobre 2014
    • Funding: CIFRE

    Collection : Steady thesis
    Date : 2014

    Observer design for LPV Systems and H-/Hinf framework

    Name: ZHOU
    Firstname: Meng
    Graduate School: Harbin Institute of Technology (HIT), China
    Directors: M.Rodrigues, Z. Wang
    Beginning of the thesis: 12/2014
    Expected end of the thesis: 12/2017
    Funding: Chinese Scolarship Council (CSC)

    Collection : Current thesis
    Date : 2014

    Principes actifs de type triterpenoïde issus de la plante Ecballium elaterium : mesure des propriétés de transport membranaire et purification

    • Etudiant :  HABIB Lamice
    • Diplôme : Doctorante Co-tutelle Franco Libanaise
    • Durée d’encadrement :  Octobre 2010 – Décembre 2013
    • Encadrement : Charcosset Catherine, Pr H. Greige (Université Libanaise)

    Collection : Steady thesis
    Date : 2014

    Stabilization and hybrid systems

    • Auteur : Humberto Shein Shiromoto, Encadré par Vincent Andrieu, Christophe Prieur (GIPSA)
    • Soutenue : 23/06/2014
    • Financement : Bourse ministérielle de l’école doctorale de Grenoble

    Collection : Steady thesis
    Date : 2014

    Study and modelling of a continuous precipitation process in liquid-liquid extraction column

    Summary of the PhD study : Confidentiel

    • PhD student name: A AMOKRANE
    • Defensed : 14/05/2014
    • Actually :Post-doctorant à INSTN Cadarache
    • Supervisors: F..PUEL, J.P. KLEIN

    Collection : Steady thesis
    Date : 2014

    « Etude des propriétés antimicrobiennes de l’oxyde de zinc »

    • Etudiant : Julia PASQUET
    • Devenir: CDI chez STRAND
    • Soutenue : 21/07/2014
    • Encadrement : Bolzinger M.A., Chevalier

    Collection : Steady thesis
    Date : 2014

    Control of a distributed parameter process with moving interface: application to an extrusion process

    The aim of the Ph.D. is the control of distributed parameters with a moving interface. Such systems appears for instance in models of extrusion processes. A simplified bi-zone model of such a process is used in this thesis. In the first part the well-posedness in the sense of existence of solutions is analyzed. In a second instance the control of the mass transport and position of the interface is suggested using a control model with state-dependent input-delay. Finally more general models re considered namely boundary port Hamitonian systems are extended in order to include a moving interface and the associated power-conjugated variables are defined.

    • Authors : Mamadou Diagne, Ph.D. advisors : B. Maschke, F. Couenne
    • Defense scheduled: May 2013
    • Financed by the Ministery of Higher education and Research

    Collection : Steady thesis
    Date : 2013

    Coupling of Population Balance Modeling and Computational Fluid Dynamics for Turbulent Emulsification Systems

    Breakage kernels; population balance modeling; monitoring by video probe; high pressure homogenizer; static mixers. Effect of dispersed phase viscosity; coupled population balance-CFD
    • PhD student name : Julian Per Becker
    • Years : 2010-2013
    • Supervisors :  Nida Sheibat-Othman (director), François Puel
    • Summary of the PhD study :

    Collection : Steady thesis
    Date : 2013

    Elaboration de la silice magnétique pour applications diagnostics in vitro

    • Etudiant :  BITAR Ahmad
    • Diplôme : Doctorant Thèse Syrie
    • Encadrement : A. Elaissari

    Collection : Steady thesis
    Date : 2013

    Elimination des ions fluorures dans des eaux naturelles par de nouveaux procédés – Application au problème de la fluorose en Tunisie

    • Etudiant :  BEN NASR Anis
    • Diplôme : Doctorant Co-tutelle Franco tunisienne
    • Durée d’encadrement :  Octobre 2009 – 2013
    • Encadrement : Charcosset Catherine, Pr. R. Ben Amar

    Collection : Steady thesis
    Date : 2013

    Emulsions de Pickering stabilisées par des particules biodégradables

    • Etudiant : Faiza LAREDJ
    • Diplôme : Thèse sur thématique prioritaire MENRT
    • Durée d’encadrement : 1 septembre 2009 – soutenance prévue en 2013
    • Encadrement : Chevalier Yves, Bolzinger M.A.

    Collection : Steady thesis
    Date : 2013

    Encapsulation de molécules actives pour la fonctionnalisation de textiles

    • Etudiant :  JAAFAR MAALEJ Chiraz
    • Diplôme : Post-Doctorante (projet Texacti’v)
    • Durée d’encadrement :  Novembre 2012 – Novembre 2013
    • Encadrement : A. Elaissar, H. FESSI

    Collection : Steady thesis
    Date : 2013

    Nanotheracel : développement de nanoparticules polymères pour le ciblage et la modulation de macrophages

    • Etudiant :  ALMOUAZEN Eyad
    • Diplôme : Thèse MENRT
    • Encadrement : Bourgeois S, Briançon S.

    Collection : Steady thesis
    Date : 2013

    Préparation de nouvelles formes pharmaceutiques pour l’encapsulation de la vitamine E par contacteur à membrane

    • Etudiant :  LAOUANIAbdallah
    • Diplôme : Doctorant Thèse MENRT
    • Durée d’encadrement :  Octobre 2010 – Décembre 2013
    • Encadrement : Charcosset Catherine

    Collection : Steady thesis
    Date : 2013

    Stochastic approach for the chemical network study in the reactions of hydrocraking of complex matrix

    The aim of the thesis is to enable a better understanding of the macroscopic functioning of catalysts (the activity, the selectivity and the stability).The GC-2D coupled with kinetic models applied to complex matrices will help to understand the reaction mechanisms of the hydrocracking reactions in a batch reactor and therefore to propose innovative solutions for catalyst selection and choice of process parameters. The model will be based on distributions of populations and the kinetic model will be obtained by the application of a stochastic approach.

    • Author : Reynald HENRY, PhDdirection: M. Tayakout-Fayolle (IRCE), F. Couenne
    • Defense scheduled : Novembre 2013
    • Financed by: allocation ministère 

    Collection : Steady thesis
    Date : 2013

    These of Honoré K. Ouoba : Convective drying of foodstuff : influence of size, form, cut and structure of matter

    Members : F Zougmore, H Desmorieux

    Collection : Steady thesis
    Date : 2013

    Un modèle physique multi-échelle pour l’analyse de l’électrolyse de l’eau dans des électrolyseurs à membrane échangeuse de protons (PEMWE) : des données ab-initio vers les observables macroscopiques.

    La filière énergétique de l’hydrogène se réfère àla possibilitéd’utilisation de H2pour transporter et produire de l’énergie.Il existe différentes méthodespour obtenirH2, parmi elles, l’électrolyse de l’eau.Parmi les dispositifsexistants utilisés pourla production d’hydrogènepar électrolyse del’eau, les électrolyseurs à membrane échangeuse de protons (PEMWE) ont été très étudiés durant cesdernières années.L’objectifprincipal de cette thèseest de fournir unmodèle multi-échellepour l’analyse du fonctionnement desPEMWE. Pour atteindre cet objectif, nous utilisons différentestechniquesthéoriques et numériques, en raison des différentes échellesqui doivent être traitées. Cette thèsecomporte deux axesprincipaux :le premierconsiste en l’élaboration d’un modèle multi-échelletransitoirepour décrire le fonctionnementd’unPEMWE. Ce modèlecomprend une description détailléedes mécanismes chimiques élémentaires et des cinétiques associées au niveau des électrodes, une descriptiondu comportement de l’interface catalyseur-électrolyte àl’échelle nanométrique et une descriptionmicrostructuraledu transport desespèces chimiqueset des chargesau long des assemblages membrane électrodes (AME). Nous présentonsune étude d’impactdesdifférentsmatériaux catalytiquessurles performances des PEMWE et une étudede la sensibilitéaux conditions de fonctionnementà partirdes simulations numériques etlesrésultats sont discutés encomparaison avec les donnéesexpérimentales.Le deuxième axeestconsacré à l’étude détaillée des phénomènesà l’échelleatomique. Dans ce but,nous avons réalisé des calculs basés sur la théoriefonctionnelle de la densité(DFT) pour fournirune description détailléede l’adsorptionde l’eau surIrO2etRuO2, deux des catalyseursles plus utilisés dans un PEMWE.

    • Auteur : Luiz Fernando LOPES OLIVEIRA direction de thèse : C. Jallut (LAGEP) et A.A. Franco (CEA).
    • Soutenance prévue : 15 janvier 2013
    • Financement : collaboration CEA

    Collection : Steady thesis
    Date : 2013

    Commande des systèmes de contact entrée-sortie : application à la commande des procédés et systèmes biologiques

    Collection : Current thesis
    Date : 2013