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SEMINAR


On the 4th of April 2019, Roger Lentle from Massey University (New Zealand) will give a seminar on the "Verifiable modelling of physical processing in the various compartments of the gut"

 

He will discuss the rheological and physiological difficulties in predicting mixing and propulsion of digesta within the intestinal lumen, and will also describe the use of spatiotemporal mapping to quantify movements in ex vivo segments of the intestinal wall in real time, the use of this data in computational fluid dynamic models to predict flow and mixing, and the concurrent use of dye marker excretion profiles to validate the models. Further he will give an example of how discrepancies between the two can highlight previously unknown sources of mixing. Finally he will discuss recent work on the stomach.

 

Roger Lentle is currently visiting researchers from the LRP to investigate the opportunity of coupling experimentations on the rheology of gastric fluids to his numerical approach.

 

The seminar will be held in the Nanobio Building at 2 pm.

 

Contact: Clément de Loubens (LRP)

PhD defense


On the 18th of March 2019, Thibaud Cochereau will defend his PhD entitled "Human vocal fold structure and mechanics: multi-scale characterisation and modelling" (view the details of the project)

 

This PhD project was supervised by Lucie Bailly (3SR) and carried out in collaboration with the GIPSA-Lab and the CHU Grenoble.

 

The defense will take place at 2pm in the amphitheatre "André Rassat" on the university campus.

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Summary
abstract_résumé.pdf
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PhD Defense


On the 11th of March 2019, Sigolène Méjean will defend her PhD entitled "Jumps in granular flows down inclines" (view the details of the project)

 

The PhD co-supervised by Thierry Faug (IRSTEA Grenoble) and Itai Einav from the School of Civil Engineering of the University of Sydney. The project benefited from a financial support from the University of Sydney.

 

The defense will take place at 10 am in room Ecrins at the IRSTEA on the university campus.

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Summary
Abstract.pdf
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Conference


The DYSCO federation brings together interdisciplinary research groups sharing scientific interests and research methodologies. The aim of the federation is to encourage the connections between them and initiate collaborations.
The DYSCO federation brings together interdisciplinary research groups sharing scientific interests and research methodologies. The aim of the federation is to encourage the connections between them and initiate collaborations.

The yearly meeting of the DYSCO federation will be held at « Les Deux Alpes » on the 18th and the 19th of March 2019.

This year, a focus will be made on the question of cell migration, and the “swimming versus crawling” debate.

 

Besides this specific topic, other presentations will be given on subjects dealing with the main DYSCO research axis, i.e. living fluids, active matter, cell motility, blood and tissues, suspensions, biomimicry and complex systems, high performance computing…

 

Oral contributions and registrations are expected until the 1st of March.

Conference


On the 21st of March 2019, the LabEx ARCANE, CEMAM, LANEF, TEC21 together with the Carnot Institutes "Polynat" and "Energies du futur", organise a conference entitled “Chemistry in Grenoble”.

 

The aim is to highlight the research activities related to chemistry, encourage the discussions between chemists for future collaborations, and present the education programmes available on the campus.

 

Scientific presentations will be given by researchers from Grenoble on topics dealing with environment, health and energy.

 

A poster session will also be organised and the best poster price will be awarded at the end of the day.

The conference will be held in the amphitheatre Boucherle (near the hospital – La tronche).

 

Poster submissions and registrations are opened until March 4: https://chimiegrenoble.sciencesconf.org/

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Programme of the conference (FR)
Journée Chimie_Programme (FR).pdf
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Workshop


On the 13th and the 14th of February 2019, the LANEF "Laboratoire d'Excellence" and the Fed3G organise a workshop entitled "different states of turbulence and transitions from one state to the other: small and large-scale aspects and their interrelations".

During the first day, aspects of small scale turbulence and cascades will be discussed in terms of stochastic thermodynamics in connection to large deviation theory, entropy fluctuations and fluctuation theorems, and non-equilibrium statistical mechanics.

The second day will be dedicated to the large scale and average behaviours of evolving turbulent flows such as wakes of fractal and classical discs and wind turbines, as well as the development of turbulence as a consequence of multiscale excitations (such as by active or multiscale/fractal grids) in the context of cascade and turbulence dissipation phenomena. The universality and scalings of such phenomena in both equilibrium and non-equilibrium cascade situations will be a particular focus.

 

The sessions are organised in half days:  the morning presentations are open to any interested person, and the afternoon workshop sessions are open to registered participants.

 

Please find all the details in the programme below.

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Workshop programme
annonce-et-programme_Workshop2019_v2.pdf
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PhD defense


On the 1st of February 2019, Fleur Rol will defend her PhD entitled "Cellulose pretreatment for a nanofibrillation by twin-screw extrusion" (view the details of the project)

 

This PhD project was supervised by Julien Bras from the LGP2.

 

The defense will take place at 9:30 am at the LGP2 on the university campus.

 

 

 

 

 

PhD defense


Published January 2019

3D view of a snow sample obtained by X-ray microtomography (from Hagenmuller et al., 2014)
3D view of a snow sample obtained by X-ray microtomography (from Hagenmuller et al., 2014)

On the 6th of February 2019, Tijan Mede will defend his PhD entitled "Numerical investigation of snow mechanical behaviour: a microstructural perspective" (view the details of the project)

 

This PhD project was co-supervised by Guillaume Chambon and François Nicot from IRSTEA, and Pascal Hagenmuller from the CEN.

 

The defense will take place at 2 pm in the room Ecrins (IRSTEA building) on the university campus.

 

 

 

 

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Abstract
Abstract.pdf
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PhD defense


Published January 2019

3D observation of a deformed porous rock sample saturated with water. The shear band is observed on the left by X-ray tomography, and the speed of the water front is monitored by neutron imaging (on the right)
3D observation of a deformed porous rock sample saturated with water. The shear band is observed on the left by X-ray tomography, and the speed of the water front is monitored by neutron imaging (on the right)

On the 21st of January 2019, Maddi Etxegarai will defend her PhD entitled "Coupled hydro-mechanics of reservoir rocks studied by quantitative in-situ neutron imaging" (view the details of the project)

 

This PhD project was co-supervised by Stephen A. Hall from the University of Lund and Cino Viggiani (3SR) as part of a long-term visitor grant.

 

The defense will take place at 3:30 pm in the amphitheatre Besson on the university campus.

 

 

 

 

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Abstract
abstract PhD Etxegarai.pdf
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Job opportunity


Published January 2019

The CERMAV, Grenoble's leading research center in glycosciences, is looking for a post-doc researcher to work within its "structure and properties of glycomaterials" team.

 

The project deals with the bulk production of cellulose oligomers with a controlled degree of polymerisation.

 

This one year position is opened to candidates with experience in material science, soft matter chemistry or physics, and with a good knowledge of X-ray or neutron diffraction analysis.

 

The project will be carried out in collaboration with researchers from the CERMAV, the LIPhy, the LGP2 and the FCBA.

 

 

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Job description
call_for_postdoc.pdf
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2019 visiting scientists


Published January 2019

Sami Boufi (on the left) and Madhav Ranganathan (on the right)
Sami Boufi (on the left) and Madhav Ranganathan (on the right)

Further to the 2018 call for research proposals, Tec21 will welcome two invited scientists in 2019.

 

Sami Boufi is a Professor at the Department of Chemistry of the University of Sfax (Tunisia) and develops his research activity in the field of biomass valorisation with a focus on nanocelluloses, their production, characterisation and use. He comes to Grenoble to work with Albert Magnin from the LRP and Julien Bras from the LGP2 on the production of high-consistency cellulose nanofibrils via twin screw extrusion. The aim is to be able to obtain highly concentrated suspensions of nanocelluloses without any concentration step required, therefore reducing the production costs, a key challenge in the industrial production of nanocellulose.

 

Dr. Madhav Ranganathan is associate professor at the Department of Chemistry of the IIT Kampur (India). He works on statistical and non-linear physics, crystal growth, biophysics and cellular motion, and comes to Grenoble to collaborate with Chaouqi Misbah from the LIPhy and Marc Leonetti from the LRP on the development of a computational model for the 3D simulation of the amoeboid swimming of cells. Besides the numerical developments, experimental investigations will be carried out to elucidate the importance of the cellular fluidity and the viscosity of the cell membrane on the mechanics of the motion.

Essere vento


Published December 2018

The sculpture (right), close-up on a sculpted grain and its model (left)
The sculpture (right), close-up on a sculpted grain and its model (left)

The piece of artwork “Essere vento”, literally, being the wind, was revealed on the 4th of December 2018 at the "laboratoire 3SR" in presence of the Italian sculptor Giuseppe Penone himself.

 

Giuseppe Penone likes to work with natural elements and materials, moulding them, sculpting them, and sometimes trying to reproduce the action of nature, as in his famous piece of work “Essere fiume”, for which he sculpted a rock just the way the river did it.

 

When they first met in 2015 in an exposition at the art museum of Grenoble, Giuseppe Penone asked the researchers if they would be able to sculpt a sand grain. “You bet!” was the answer.

 

Using high tech imaging tools, the researchers in close collaboration with the artist, carefully selected the grains that would serve as models, as well as those that would be eroded micron after micron, using LASER beam machining, to shape them like the models, as closely as possible. A number of pair grains were fabricated, and in honour of this collaboration with the researchers from the "laboratoire 3SR" specialising in the microstructure of geomaterials, Giuseppe Penone has chosen to include a pair of twin grains in a 50 kg piece of art made of moulded concrete. The sculpture was offered to the art museum of Grenoble and will be kept at 3SR for 3 years.

 

This work is the result of a collaboration between Giuseppe Penone, Joël Chevrier (Néel Institute), Cino Viggiani and Edward Andò (laboratoire 3SR), and the MUL company in Toulouse.

Honours


Published November 2018

Jacky Mazars and Félix Darve are amongst the main contributors to civil engineering sciences and solid mechanics. In honour of their (solid and non-linear!) career, their colleagues from the 3SR lab have invited collaborators and friends to pay tribute to their work in a two-sessions conference, the one dealing with geomechanics, the other one dealing with the vulnerability of civil engineering structures. Both will most certainly appreciate such a nice present just before Christmas!

 

The conference will be held in the Kilian amphitheatre on the 11th and the 12th of December.

 

All the details in the PDF programme

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workshop DARVE-MAZARS.pdf
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Outreach


Published November 2018

On the 24th of January 2019, the IRSTEA, the CEN and the ANENA organise a workshop on avalanches for high school students.

The researchers from Grenoble have long been involved in the study of avalanches, in particular in the modelling of snow as a granular material exhibiting a complex behaviour. This outreach day will consider the aspects in relation to risk and safety, avalanche prediction, protection infrastructures and the modelling of snow flows. In the afternoon, two parallel sessions will be held, the one dealing with the mechanical modelling of powder snow avalanches and dense snow avalanches, the other one dealing with climate change and the future of snow in ski resorts. During these sessions, the students will have the opportunity to interact with the speakers and ask their questions to researchers from the IRSTEA and the CEN (French Centre for Snow Studies).

 

Registrations are open until the 20th of December 2018.

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Avalanches.pdf
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PhD defense


Published October 2018

On the 22nd of October 2018, Mathias Tolomeo will defend his PhD entitled "Forces inferred from macroscopic loading and grain motion" (view the details of the PhD project)

 

This PhD project was supervised by Vincent Richefeu, Gaël Combe and Cino Viggiani (3SR lab).

 

The defense will take place at 2pm in room K118 at the LEGI.

PEI now fully working


Published October, 2018

The collaborative research platform PEI, dedicated to clean technologies and industrial processes, brings together students, researchers and industrials in an environment likely to favour the connexions between them.

 

The building was delivered in october 2015, and the platform was officially launched in July 2016 with the ambition of hosting education programmes, collaborative research projects, and startups.

 

After two years of efforts, PEI is now fully working, with almost 10 research projects in progress from 6 different laboratories on the campus, more than 100 hours of teaching at the master level for the past year, and since the beginning of 2018, 3 startups companies hosted, developing activities in industrial gas analysis, air purification, and the characterisation of complex fluid.

 

 

For more information about PEI, please visite the website here

PhD defense


Published June, 2018

On the 15th of June 2018, Deepak Kunhappan will defend his PhD entitled "Numerical modelling of long flexible fibres in inertial flows" (view the details of the PhD project)

 

This PhD project was supervised by Guillaume Balarac (LEGI) and Pierre Dumont (LGP2) in collaboration with Barthélémy Harthong (3SR)

 

This project was co-funded by the CNRS.

 

The defense will take place at 9 am in room K118 at the LEGI.

 

Online PDF

PhD defense


Published May, 2018

On the 4th of may 2018, Bratislav Lukic will defend his PhD entitled "Development of a full-field measuring technique for the characterisation of the dynamic tensile behaviour of concrete" (view the details of the PhD project)

This PhD project was supervised by Pascal Forquin and Dominique Saletti (3SR Lab)

The defense will take place in the Wilfried Killian amphitheatre at 9 am.

 

Online PDF