Search
Plates with blind holes for harnessing of flexural waves
Mie scatterers in dielectric optical materials, metallic wires for microwave systems or Helmholtz resonators for scalar acoustic waves are readily available as building blocks of complex structures. Such a strong resonator is yet to be invented for flexural waves. 1- Demonstration of sub-wavelength
Heteroepitaxial Diamond on Iridium for Dosimetry
Diamond heteroepitaxy constitutes one of the remaining challenges for technological applications. The most promising results are nowadays obtained with iridium substrates. Although the use of this material for detector applications is just starting, a strong potential is foreseen. Nevertheless, an a
Picosecond Laser Ultrasonics for Shear Diagnostics of Interfacial Liquids at nanoscale
Although the knowledge of liquid structuring/ordering is of paramount importance for such fundamental issues as energy/heat and molecules/particles transport across the interfaces, and to such fast developing applications as nanofludics, our knowledge on liquid structuring at nanoscale is very limit
Innovative process for continuous production of hydroxyapatite: from fundamental aspects to enhanced product and process performance
Osteoarticular pathologies are, at all ages, the first cause of handicap and raise healthcare and economical concerns. Regarding hip and knee pathologies, metallic prostheses are among the most developed bone substitutes used nowadays to circumvent these handicaps. A hydroxyapatite (HAP) coating is
Stress Influence on Zirconium Hydrides Precipitation
The oxidation of zirconium alloys occurring in light water nuclear power plants entails the adsorption of hydrogen that lead to hydrides precipitation when the terminal solid solubility (TSS) is reached. The heterogeneous material thus formed may have lower mechanical properties than the hydride-fre
In situ nanostructured Si-based superCAPacitors
The development of integrated energy storage devices is a major challenge. Supercapacitors are a promising alternative to batteriesq due to their high power density and cycle life. However on-chip intergration of micro-supercapacitors is non trivial as the commonly used liquid electrolytes do not su
Control-oriented linear and nonlinear modeling for jet aeroacousticzz
The Cool Jazz project explores the dynamics of coherent wavepackets in subsonic turbulent jets, their role in the generation of jet noise, and the prospects of noise reduction through closed-loop flow control. On a fundamental level, the study first aims to elucidate how coherent wavepacket structur
Dynamics of helical vortices
The aim of this project is to gain new basic knowledge on the dynamics and instabilities of helical vortex systems, with relevance to applications involving flows around rotors. These include the wake generated by a helicopter and the flow behind a horizontal-axis wind turbine. In both cases, import
Innovating for Structural Adhesive Bonding Evaluation and Analysis with Ultrasounds
The goal of the project ISABEAU (Innovating for Structural Adhesive Bonding Evaluation and Analysis with Ultrasounds) is to overcome technological obstacles that blocks verification of the integrity of bonded joints with NDT methods, the case of kissing bonds remains a major scientific challenge yea
Lab-on-a-chip based on integrated hybrid technologies for biofluids manipulation and characterization
The purpose of a lab on a chip is to miniaturize and integrate macro scale laboratory functions on a chip format. This scale reduction can lead to lower reagent volume consumption, massive parallelization of experiments and better process control. From an industrial perspective, this will entail sub
Stick-slip rupture instability in polymers
The understanding of the dynamical rupture instability often called stick-slip observed during the peeling of an adhesive tape or during the tearing of an elastomer is rather uncomplete. Its occurrence in adhesive tapes is harmful for the industrial process of rolling tape making: noise nuisances be
High Voltage In Vacuum
The interest of the project is in developing an additional source of energy, controlled nuclear fusion by magnetic confinement. Neutral injection systems heat the plasma in order to initiate the nuclear reactions ; they are powerful electrostatic accelerators with components at high voltage (1 MV fo
LED pumped tunable lasers
For 20 years, high-power laser diodes have become the reference for solid-state lasers pumping. However, despite their very good efficiency and brightness, laser diodes are still the ones to blame for the high cost of diode-pumped solid-state lasers. In addition, being principally developed in the n
Turbulent Evaporation and Condensation
The passages of matter from one state to another are phenomena so common that little attention is paid to them. The water in the kettle, the falling rain or the icicle in the glass are so much part of our environment that we forget that the same phenomena do govern the combustion of fuel in the engi
Comprehensive study of plasticity in pure and alloyed magnesium
Owing to its density approximately 4 times lower than that of steel, Magnesium has tremendous potential applications in both the automotive and aeronautics industries. Pure Mg, however, is of limited technological use due of its low yield stress, easy creep activation at low temperatures, and poor c
Applications of laseR shoCk waves with variable pulse duratiOns to the anaLysis of coatings adhEsion
The ARCOLE Project aims at investigating the following aspects: (1) understanding the laser-matter interaction in confined regime with two laser pulses delayed by a Dt time duration (2) applying this new and innovative configuration that allows locating precisely tensile loadings on a given interf
Silicone Architectured Membranes for Biomedical Applications
This project takes its source in an array of works aiming at designing highly deformable anisotropic membranes for medical applications. The silicone rubbers (polydimethylsiloxane or PDMS) are highly deformable biomaterials widely used by surgeons for their mechanical properties controlled by their
Design, synthesis and characterisation of new absorbents (Ionic Liquids) for the biotreatment of hydrophobic VOC
The proposed research program is based on the coupling of two successive reactors (a gas-liquid absorption column and a multiphase bioreactor containing activated sludge) in order to remove hydrophobic molecules emitted by various industries. Indeed, classical scrubbing (absorption in an aqueous pha
Naturally occuring phospholipids rich in omega 3 fatty acids for liposome formulation
The present ANR project aims at fabricating and exploring the properties of a special class of capsules called “ethosomes”, resulting from the self-assembly of phospholipids in the presence of water and ethanol. The main objective of the project is to develop the underpinning science required to add
Transendothelial migration of cancer cells
Cancer develops particularly because of the metastatic cascade occuring from an initial tumor. our obejctives are to prevent the disease by attacking the problem of cancer cell transmigration through the endothelium. Deformability, adhesion, mechanical forces and their coupling effects will be studi
Corona plasma reactor modelling and experimental validation for flue gas pollution control
The principal aims of the «Plasma ReMoVal« project are the development and the experimental validation of a 3Dxyz software dealing with the simulation of non-equilibrium non-thermal corona plasma reactors operating at atmospheric pressure (PA). Such reactors can be used for the treatment of flue gas
Collective Dynamics of Settling Particles in Turbulence
The dynamics of solid particles suspended in a fluid are a complex and fascinating problem of fluid mechanics, with applications in fields as diverse as environmental fluid mechanics, the petroleum industry, and chemical engineering industries. Among the various types of flows that occur in nature a
Phenomenology of turbulent mixing in variable viscosity and density flows
In variable viscosity or density flows, we will study the effect of the hydrodynamical (Reynolds number) and physico-chemical parameters (density ratio and viscosity) on the behaviour of the dynamical system (velocity and scalar field) at various scales (mean and fluctuating fields). Given: the inje
Plasma Edge Physics and Plasma-Surface Interactions
Plasma-surface interactions are one of the critical issues in the design and operation of nuclear fusion experiments such as ITER. Indeed, tokamak divertors are constantly exposed to the bombardment of highly energetic particles, thus damaging the divertor surface and shortening its lifetime. Beside
Complex Dynamics of water waves
The DYNAMONDE project is focused on the study of the complex dynamics of water waves. Experiments play a central role in this project and they are complemented by theoretical and numerical studies. The project is organized with 3 principal tasks: 1) wave turbulence 2) extreme waves ( experimental
SImulating in the LAboratory Magnetized Plasmas outflows for Astrophysics
This project aims at addressing, for the first time, astronomy-relevant issues related to the coupling of expanding and colliding plasmas with dynamically important magnetic field. In particular the collimation of compressible, magnetohydrodynamic flows by a magnetic field, and the formation of coll
Soot Modelling and Radiative Transfer characterization for Low Emission Combustion Technology
The availability of validated numerical platforms is today considered as a key step in the design process of the future high performance combustors, in order to help reduce the impact of the civil air transport on the environment. Improved modelling will be achieved in the SMART-LECT project by the
Coupled physiological and micro-mechanical approach on maturation stress generation in tension wood
A key element of the biomechanical design of trees is their ability to generate large mechanical stresses in wood at the stem periphery. This function is necessary for the tree to control the orientation of its axes, and therefore to grow in height, maintain its branches at an optimal angle or achie
Materials with Elementary Tailored Architecture for Functional Optimized Response: from Experiments to Simulations
During the last decades, the principal strategy for improving multi-functional structural materials (MFSM) consisted in increasing complexity and reducing size of their microstructure. The METAFORES project is focusing on one class of MFSM, copper/niobium (Cu/Nb) high-strength and high-conductivity
High brightness pumping of Yb-doped laser materials
Few-cycle or single optical cycle pulse duration, carrier–envelope phase (CEP) control, high pulse energy are several signature requirements to laser sources dictated by modern high-intensity physics. The advent of the technique of chirped pulse amplification (CPA) 25 years ago and the invention of
Bioactive injectable hydrogels using ionic liquids
Today regenerative medicine is moving towards the development of less and less invasive surgical techniques with the objective of reducing morbidity and the duration of hospitalisation. This quest for minimally-invasive surgery has motivated the development of injectable matrices for bone and cartil
METAMATERIALS AND PHONONICS CRYSTALS CONTROLLED BY ELECTRIC AND MAGNETIC FIELDS
The control of wave propagation, which relies on the artificial media design, is an important topic in fundamental and applied research as well. Unusual acoustic properties have been observed in both phononic crystals, periodic structures allowing the control of the wave at the scale of the waveleng
Advanced power electronic for aeronautical applications
The ETHAER project is at the border of basic research and applied research. It addresses the field of Power Electronics within the frame of the more electrical aircraft that has generated many reseach over the past five years. The specific aim of this project is to help defining the power electronic