Cergy-Pontoise, France
Cergy-Pontoise, France

Cergy-Pontoise University is a French university, in the Academy of Versailles.Cergy-Pontoise University is a public university and a leading centre of teaching and research, which welcomes 17,700 students and 1,500 international students interested in studying abroad.The university is located in the west of Paris , in the Val-d'Oise department.The university offers all levels of graduate and post-graduate studies. 144 bachelors, masters and doctorate degrees are available in a wide range of fields : law, economy and management, languages, literature and social science, and science and technology. Wikipedia.


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Grant
Agency: European Commission | Branch: H2020 | Program: MSCA-ITN-ETN | Phase: MSCA-ITN-2014-ETN | Award Amount: 3.30M | Year: 2015

Electroactive polymers (EAP) consist of materials capable of changing dimensions and/or shape in response to electrical stimuli. Most EAPs are also capable of generating electrical energy in response to applied mechanical forces. These polymeric materials exhibit properties well beyond what conventional metal or plastic-based actuators can offer, including very high mechanical flexibility (can be stretched to twice their initial size), low density, a high grade of processability, scalability, microfabrication readiness and, in most cases, low cost. Micro-EAPs enable a new broad range of applications for which large strains and forces are desirable, and for which built-in intelligence is necessary. The main objective of the project will be the improvement of the career perspectives (in academia and in industry) of young researchers by training them at the forefront of research in the field of smart soft systems made of EAP microactuators for advanced miniaturized devices. The overall objective for the scientific programme is research and development of EAP materials and their integration for industrial applications. Special attention will be devoted to the development of microactuators. The field of smart materials is growing extremely fast. Materials whose stiffness and shape can be controlled, and that are capable of sensing their shape allow new classes of compliant complex systems. Through the MICACT programme, we hope to ensure that European researchers keep their leading role in this blossoming field, and to help them transition to industrial positions.


Grant
Agency: European Commission | Branch: FP7 | Program: MC-IRSES | Phase: FP7-PEOPLE-2012-IRSES | Award Amount: 533.60K | Year: 2013

IONRUN (Innovative Ionic polymers from Natural Sources for Energy&Environment) International Research StaffScheme aims to stregthen research partnerships through staff exchanges and networking activities between threeEuropean Research organizations: University of the Basque Country (Spain), University Cergy-Pontoise (France) andUniversity Nova of Lisbon (Portugal) and five non-EU Research Organizations: Russian Academy of Sciences (Russia), Vellore University-VIT (India), Soochow University (China), Federal University of Rio Grande do Sul (Brasil) and Scientific and Technical Research Council (Argentina). The project will provide support for the participating research organizations to establish or reinforce long-term research cooperation in the topic of innovative ionic polymers through a coordinated joint programme of exchange of researchers for short periods. This will include joint research and training activities and joint workshops and seminars, as well as other networking activities. The activities have been designed to exploit complementary expertise of the participants and to create synergies and to promote long term collaborations between the partners. IONRUN will aim at developing high quality training opportunities and international collaborations through a synergistic collaborative research programme between European and Non-European organizations in the field of polymer science as applied to needs in energy&environment. IONRUN research goals include the development of innovative ionic polymer materials using natural and renewable sources, ionic liquid monomers and polymers, green catalysis and environmental friendly polymerization processes. The developed materials will be tested in Energy&Environment applications such as materials for electrochemical energy storage and water purification.


Belliard S.,Cergy-Pontoise University
Nuclear Physics B | Year: 2015

The modified algebraic Bethe ansatz, introduced by Crampé and the author [8], is used to characterize the spectral problem of the Heisenberg XXZ spin-1/2 chain on the segment with lower and upper triangular boundaries. The eigenvalues and the eigenvectors are conjectured. They are characterized by a set of Bethe roots with cardinality equal to N the length of the chain and which satisfies a set of Bethe equations with an additional term. The conjecture follows from exact results for small chains. We also present a factorized formula for the Bethe vectors of the Heisenberg XXZ spin-1/2 chain on the segment with two upper triangular boundaries. © 2015 The Author.


Matzkin A.,Cergy-Pontoise University
Physical Review Letters | Year: 2012

We propose a scheme allowing us to observe the evolution of a quantum system in the semiclassical regime along the paths generated by the propagator. The scheme relies on performing consecutive weak measurements of the position. We show how "weak trajectories" can be extracted from the pointers of a series of devices having weakly interacted with the system. The properties of these weak trajectories are investigated and illustrated in the case of a time-dependent model system. © 2012 American Physical Society.


Rougerie N.,Cergy-Pontoise University
Archive for Rational Mechanics and Analysis | Year: 2012

When Bose-Einstein condensates are rotated sufficiently fast, a giant vortex phase appears, that is, the condensate becomes annular with no vortices in the bulk but a macroscopic phase circulation around the central hole. In a former paper (Correggi et al. in Commun Math Phys 303:451-308, 2011) we have studied this phenomenon by minimizing the two-dimensional Gross-Pitaevskii (GP) energy on the unit disc. In particular, we computed an upper bound to the critical speed for the transition to the giant vortex phase. In this paper we confirm that this upper bound is optimal by proving that if the rotation speed is taken slightly below the threshold, there are vortices in the condensate. We prove that they gather along a particular circle on which they are uniformly distributed. This is done by providing new upper and lower bounds to the GP energy. © 2011 Springer-Verlag.


Patent
French Atomic Energy Commission and Cergy-Pontoise University | Date: 2014-12-12

A membrane for a proton exchange membrane fuel cell including, by weight with respect to the total weight of the membrane:


Patent
French National Center for Scientific Research and Cergy-Pontoise University | Date: 2015-02-03

An extension to the enhanced serial generalized bit-flipping decoding algorithm (ES-GBFDA) of non-binary LDPC codes by introducing soft information in the check node operation. The application not only considers the most reliable symbol in the syndrome computation, but also takes at least the second most reliable symbol of each incoming message into account. An extended information set is available for the parity-check node update and this allows introducing the concept of weak and strong votes performed by the check node unit. Each variable node can receive two kinds of votes, whose amplitudes can be tuned to the reliability of the syndrome that produces the vote.


Grant
Agency: European Commission | Branch: FP7 | Program: ERC-AG | Phase: ERC-AG-PE1 | Award Amount: 2.08M | Year: 2012

Many physical models involve nonlinear dispersive problems, like wave or laser propagation, plasmas, ferromagnetism, etc. So far, the mathematical under- standing of these equations is rather poor. In particular, we know little about the detailed qualitative behavior of their solutions. Our point is that an apparent com- plexity hides universal properties of these models; investigating and uncovering such properties has started only recently. More than the equations themselves, these univer- sal properties are essential for physical modelisation. By considering several standard models such as the nonlinear Schrodinger, nonlinear wave, generalized KdV equations and related geometric problems, the goal of this pro- posal is to describe the generic global behavior of the solutions and the proles which emerge either for large time or by concentration due to strong nonlinear eects, if pos- sible through a few relevant solutions (sometimes explicit solutions, like solitons). In order to do this, we have to elaborate dierent mathematical tools depending on the context and the specicity of the problems. Particular emphasis will be placed on - large time asymptotics for global solutions, decomposition of generic solutions into sums of decoupled solitons in non integrable situations, - description of critical phenomenon for blow up in the Hamiltonian situation, stable or generic behavior for blow up on critical dynamics, various relevant regularisations of the problem, - global existence for defocusing supercritical problems and blow up dynamics in the focusing cases. We believe that the PI and his team have the ability to tackle these problems at present. The proposal will open whole elds of investigation in Partial Dierential Equations in the future, clarify and simplify our knowledge on the dynamical behavior of solutions of these problems and provide Physicists some new insight on these models.


Patent
Électricité de France and Cergy-Pontoise University | Date: 2015-09-11

The invention relates to a method for producing an anion-exchange polymer material having an IPN or semi-IPN structure, said method consisting in: (A) preparing a homogeneous reaction solution containing, in a suitable organic solvent, (a) at least one organic polymer bearing reactive halogen groups, (b) at least one tertiary diamine, (c) at least one monomer comprising an ethylenic unsaturation polymerizable by free radical polymerization, (d) optionally at least one cross-linking agent including at least two ethylenic unsaturations polymerizable by free radical polymerization, and e) at least one free radical polymerization initiator; and (B) heating the prepared solution to a temperature and for a duration that are sufficient to allow both a nucleophilic substitution reaction between components (a) and (b) and a free radical copolymerization reaction of components (c) and optionally (d) initiated by component (e). The invention also relates to the resulting IPN or semi-IPN material and to the use thereof in electrochemical devices, in direct contact with an air electrode.


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: YOUNG-5a-2014 | Award Amount: 2.58M | Year: 2015

Existing research suggests that political participation and European orientation of young people depend on how they experience influence and involvement at local level. This reflects that individuals need the experience of self-efficacy to engage in wider communities. Research also reveals that only few young people engage in formalised participation (parties, trade unions, or youth councils) as these are not flexible enough for individualised concerns, biographies and life styles and they reflect patterns of social inequality. The project Spaces and Styles of Participation (PARTISPACE) starts from the assumption that all young people do participate while not all participation is recognised as such. The study asks for the different ways in which young people participate in decisions which concern them and, in general, the life of their communities. How do 15- and 30-year-olds engage with the public in formal, non-formal and informal settings and how is this supported or inhibited by local youth policies and youth work? The countries involved Bulgaria, France, Germany, Italy, Sweden, Switzerland, Turkey and the UK secure contrasting contexts of young peoples growing up as well as differing orientations towards Europe. The design of PARTISPACE includes: National research literature reviews and policy analysis; Analysis of European Social Survey data on young peoples participatory orientations; Local case studies in one major city per country including expert interviews, focus groups discussions, city walks and biographical interviews with young people, ethnographic case studies of formal, non-formal, and informal participatory spaces. Activating and supporting participatory action research by young people themselves. The analysis relates local constellations with national and European patterns and discourses of youth participation. Findings are constantly discussed with representatives of the youth sector at local and European level.

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