News

Mars 2012

Seminar : Thursday 1st March
Loïc Le Marrec, lecturer in Mathematics, University of Rennes 1
 
Title : Actual dynamic properties of discrete heterogeneous environments : approach and limitations of multicasting models
 
Abstract
A discrete heterogeneous environment consists of two distinct phases. For high frequency dynamic problems, the methods of multicasting take into account the geometric and material properties of both phases : the effective properties are then obtained only by considering various realizations of the disorder. This methodology can be applied to different phenomena ; here, an acoustic and elastic-dynamic problem will act as a 2D support.
The explicit and implicit theoretical developments will be presented at various levels in order to obtain the classical models of Foldy, Loyd Berry or Waterman-Truell. In each case, attention will focus on the assumptions of these models.
Numerical simulations will hep compare these models to summary measures. This will be an opportunity to discuss limitations and the possible extensions of these problems.

 

 

February  2012

Arrival of Fang Wang (PhD student, research topic : "Curvelets and waveform inversion")

 

October 2011

Arrival of Elise Vi Nhu Ba (PhD student, research topic : "Detecting faults and fracture zones in the upper limestones and the argillites of the Tournemire experimental station by combining very high resolution seismic imaging and electrical resistivity").
Visitors : Mrs Anca Rosca and Mr Bardainne, Magnitudes

 

March 2011

Arrival of Elise Vi Nhu Ba (master level), 6 months
Visitor : Mr René-Edouard Plessis, SHELL

 

April 2010

Defence of his Habilitation à Diriger des Recherches by Hervé Chauris (Accreditation to supervise research) on further topic :  "Exploitation de la cohérence locale de données sismiques pour l'imagerie du sous-sol"(Exploitation of the local coherence of seismic data for underground imaging) - Université Pierre et Marie Curie, Paris VI, Sciences de la Terre et de l'Univers.
 
Jury :
Pr. Michel Dietrich (Institut Français du Pétrole), reviewer
Pr. William Symes (Rice University), reviewer
Pr. Jean Virieux (Université de Grenoble), reviewer
Dr. Gilles Lambaré (CGGVeritas), examiner
Pr. Raul Madariaga (Ecole Normale Supérieure), examiner
Dr. Stéphane Operto (Université de Nice - Sophia Antipolis), examiner
Pr. Alain Tabbagh (Université Pierre et Marie Curie, Paris VI), examiner

 

March 2010

Arrival of:

  • Akram Ourir (master level)
  • David Imbert (master level)

 

Visitors : 

  • Mrs Gelis & Mr Cabrera, IRSN
  • Mr Perroud & Mr Mahamat, Université de Pau
  • Mr Zimmler, Université de Strasbourg
  • Mr Bardainne, Magnitude

 

 

February 2010

Permanent position for 

  • Daniela Donno

 

January 2010

Arrival of:

  • Philippe Le Bouteiller (master level)

 

October 2009

Arrival of:

  • Nidhal Belayouni (PhD)
  • Jiangbo Liu (PhD)
  • Mathieu Passays (PhD)
  • Sébastien Penz (PhD)
  • BingBing Sun (PhD from Tsinghua University, China)

 

Jan-March 2009

Arrival of:

  • Alexandrine Gesret (permanent position), from IPG Paris
  • Jianwei Ma (invited professor, March-September), from Tsinghua University, China
  • Imen Karoui (post-doc, from Ifremer) and Daniela Donno (post-doc, from Milan)
  • Nizar Moussatat (Ph.D)
  • Nidhal Belayouni (Master)

 

2008

  • December: Cédric Taillandier defended his PhD with success
  • Manuel Mendes spent 6 months (March-September) with us as invited professor
  • Arrival of Mondher Benjemaa (March 2008, from INRIA Sophia-Antipolis)


Nov 2007

  Logo

 

Workshop at the 69th annual EAGE conference and exhibition (official eage website) London Monday, 11 June 2007. More details

  

June 2006

Truong Nguyen joined us on June 2006 as a post-doc for 2 years. He will work on seismic imaging with curvelets. He has a Ph.D on contourlets in Electrical Engineer from Arlington University.