A5039976074- Geomagnetism and Paleomagnetism Studies
- Nuclear physics research studies
- Solar and Space Plasma Dynamics
- Spectroscopy and Quantum Chemical Studies
- Characterization and Applications of Magnetic Nanoparticles
- Craniofacial Disorders and Treatments
- Fluid Dynamics and Turbulent Flows
- Elasticity and Material Modeling
- Atomic and Molecular Physics
- Bone fractures and treatments
- Vibration Control and Rheological Fluids
- Cleft Lip and Palate Research
- Astro and Planetary Science
- Quantum, superfluid, helium dynamics
- Electrospun Nanofibers in Biomedical Applications
- Atomic and Subatomic Physics Research
- Tissue Engineering and Regenerative Medicine
- Anatomy and Medical Technology
- Magnetic and Electromagnetic Effects
- Magnetic Bearings and Levitation Dynamics
- Advanced Chemical Physics Studies
- Rare-earth and actinide compounds
- Orthodontics and Dentofacial Orthopedics
- Geophysics and Gravity Measurements
- Spectroscopy and Laser Applications
École Nationale Supérieure de Techniques Avancées
2016-2024
Institut des Sciences de la Mécanique et Applications Industrielles
2015-2022
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2012-2017
CEA Paris-Saclay
2012-2017
Centre National de la Recherche Scientifique
2005-2017
Université Paris-Saclay
2017
Service de Physique de l'État Condensé
2011-2013
Université Paris-Sud
2012
Direction des énergies
2012
Sorbonne Université
2011-2012
Molecular dynamics and analytic theory results are presented for the reorientation of first hydration shell water molecules around fluoride iodide anions. These ions represent extremes (normal) halide series in terms their size conventional structure-making -breaking categorizations. The simulated times consistent with NMR ultrafast IR experimental results. They also good agreement theoretical predictions Extended Jump Model. Analysis through this model shows that while sudden, large...
Introduction : Durable reconstruction of critical size bone defects is still a surgical challenge despite the availability numerous autologous and substitute options. In this paper, we have investigated possibility creating living allograft, using perfusion/decellularization/recellularization (PDR) technique, which was applied to an original model vascularized porcine graft. Materials Methods 11 forelimbs, including radius ulna, were harvested along with their vasculature interosseous artery...
Predicting dynamo self-generation in liquid metal experiments has been an ongoing question for many years. In contrast to simple dynamical systems which reliable techniques have developed, the ability predict capacity of a flow and estimate corresponding critical value magnetic Reynolds number (the control parameter instability) elusive, partly due high level turbulent fluctuations flows such (with kinetic numbers excess ${10}^{6}$). We address these issues here, using von K\'arm\'an sodium...
Last twenties, tissue engineering has rapidly advanced to address the shortage of organ donors. Decellularization techniques have been developed mitigate immune rejection and alloresponse in transplantation. However, a clear definition effective decellularization remains elusive. This study compares various protocols using human fascia lata model. Morphological, structural cytotoxicity/viability analyses indicated that all five tested were equivalent met Crapo's criteria for successful...
We report direct evidence of a secondary flow excited by the Earth rotation in water-filled spherical container spinning at constant rate. This so-called tilt-over essentially consists around an axis which is slightly tilted with respect to sphere. In astrophysical context, it corresponds liquid cores planets forced precession planet axis, and has been proposed contribute generation planetary magnetic fields. detect this weak using particle image velocimetry system mounted rotating frame....
Introduction Large bone defects are challenging for surgeons. Available reimplanted substitutes can’t properly restore optimal function along and long term osteointegration of the graft. Bone substitute based on perfusion-decellularization technique seem to be interesting in order overcome these limitations. We present here an evaluation biomechanics bones thus obtained. Material methods Two decellularization protocols were chosen this study. One using Sodium Dodecyl Sulfate (SDS) (D1) one...
Introduction: The human fascia lata (HFL) is used widely in reconstructive surgery indications other than fracture repair. goal of this study was to compare microscopic, molecular, and mechanical properties HFL periosteum (HP) from a bone tissue engineering perspective. Material Methods: Cadaveric HP (N = 4 each) microscopic morphology characterized using histology immunohistochemistry (IHC), the extracellular matrix (ECM) ultrastructure assessed by means scanning electron microscopy (SEM)....
We report experimental measurements of the flow in a cubic container submitted to longitudinal libration, i.e. rotation modulated time. Velocity fields vertical and horizontal plane are measured librating frame using corotating particle image velocimetry system. When libration frequency $\sigma_0$ is smaller than twice mean rate $\Omega_0$, inertial waves can propagate interior fluid. At arbitrary excitation frequencies $\sigma_0<2\Omega_0$, oscillating shows two contributions: (i) basic...
We study different types of stationary dynamos observed in the Von Kármán sodium (VKS) experiment when varying electromagnetic boundary conditions on (and in) impellers. The flow is driven with two impellers made soft iron (Monchaux et al 2007 Phys Rev. Lett. 98 044502) or using one soft-iron impeller and stainless steel impeller. magnetic field mapped 40 three-dimensional probes distributed within its surroundings. Symmetry coupling properties are then retrieved from direct probe...
We apply a solute−solvent approach to theoretical study of vibrational symmetry breaking in aqueous NO3− solution. Experimental infrared and Raman spectra have shown that the NO asymmetric stretches, which are degenerate for isolated anion, split by 35−60 cm−1 dilute As an initial step calculating spectra, we computed distribution energies, or “static spectrum”, resulting mean splitting two stretch eigenstates milieu. These been obtained two-mode treatment considers only mode pair as well...
We report the first experimental observation of a spatially localized dynamo magnetic field, common feature astrophysical dynamos and convective simulations. When two propellers von Kármán sodium experiment are driven at frequencies that differ by 15%, mean field's energy measured close to slower disk is nearly 10 times larger than one faster one. This strong localization field when symmetry forcing broken in good agreement with prediction based on interaction between dipolar quadrupolar mode.
Mandibular distraction is a surgical process that progressively lengthens bone. To improve the procedure and devices, load of mechanical strain soft tissues during must be determined. We tested assumption it could periosteum primarily opposing distraction. Therefore we assessed properties human mandibular compared stress-strain data with torque measured on activator cadaveric A 20 mm horizontal was performed in 7 cadavers using standard distractors. Torque torquemeter placed activation rods...
The dynamics of a straight chain cylindrical neodymium magnets is considered. We showed that this system exhibits behavior which similar to beam where the elastic rigidity acts like restoring force. By using Lagrangian approach, linear model, accounting for different sets boundary conditions, derived. Specifically clamped-free case, eigenfrequencies and eigenmodes are determined. These theoretical results compared experiments. A good agreement found, discrepancies being attributed...
Exact shell model calculations for nuclei consisting of three nonidentical particles outside the $^{208}\mathrm{Pb}$ closed core have been performed using a basis that contains correlated pairs. Two kinds effective interactions are tested and results compared with experiment. The possibility high spin isomeric states is suggested studied.[NUCLEAR STRUCTURE $^{205}\mathrm{Hg}$, $^{205}\mathrm{Tl}$, $^{211}\mathrm{Po}$, $^{211}\mathrm{Bi}$; calculated levels $J$, $\ensuremath{\pi}$...
We present an experimental study of a liquid metal flow electromagnetically forced in large aspect ratio coaxial cylindrical geometry. An azimuthal Lorentz force is applied on the gap, through radial current and axial magnetic field. Using ultrasonic velocity measurements, we focus effect these two parameters properties. show that, depending strength field not only force, different dynamical states exist. first observe stationary structure at low forcing. Then, other regimes travelling waves...
We present a method for three-dimensional (3D) magnetic field reconstruction based on Galerkin transforms. test it over synthetic fields and real solenoidal (velocity) fields, measured in water experiment. Our study shows that reliable reconstructions are possible provided the probes sufficiently sampled located shifted configurations. A preliminary application of our is performed results obtained VKS dynamo experiment (Bourgoin et al 2002 Phys. Fluids 14 3046). show stationary dynamos with...