Iron-filled multiwalled carbon nanotubes surface-functionalized with paramagnetic Gd (III): A candidate dual-functioning MRI contrast agent and magnetic hyperthermia structure

The authors are grateful for the financial support from the Engineering and Physical Science Research Council, UK

SUPERPOSITION MODEL ANALYSIS OF THE SHORT-RANGE ORDERING FOR MN2+ IN OXIDE GLASSES

International audienceno abstrac

Size and shape distribution of magnetic nanoparticles in disordered systems: computer simulations of superparamagnetic resonance spectra

no abstrac

ELECTRON-PARAMAGNETIC-RES OF IMPURITY IONS IN DISORDERED SOLIDS - DISTRIBUTIONS OF THE SPIN HAMILTONIAN PARAMETERS

International audienceno abstrac

ELECTRON-PARAMAGNETIC-RES OF GD-3+ WITH G-APPROXIMATELY-6.0 IN GLASSES - A REINTERPRETATION

International audienceno abstrac

SIMULATIONS OF ELECTRON-PARAMAGNETIC-RES SPECTRA FOR D1 IONS WITH DISTRIBUTED SPIN HAMILTONIAN PARAMETERS

International audienceno abstrac

Non-uniqueness of the point of application of the buoyancy force

Even though the buoyancy force (also known as the Archimedes force) has always been an important topic of academic studies in physics, its point of application has not been explicitly identified yet. We present a quantitative approach to this problem based on the concept of the hydrostatic energy, considered here for a general shape of the cross-section of a floating body and for an arbitrary angle of heel. We show that the location of the point of application of the buoyancy force essentially depends (i) on the type of motion experienced by the floating body and (ii) on the definition of this point. In a rolling/pitching motion, considerations involving the rotational moment lead to a particular dynamical point of application of the buoyancy force, and for some simple shapes of the floating body this point coincides with the well-known metacentre. On the other hand, from the work–energy relation it follows that in the rolling/pitching motion the energetical point of application of this force is rigidly connected to the centre of buoyancy; in contrast, in a vertical translation this point is rigidly connected to the centre of gravity of the body. Finally, we consider the location of the characteristic points of the floating bodies for some particular shapes of immersed cross-sections. The paper is intended for higher education level physics teachers and students

TEMPERATURE-DEPENDENCE OF HYPERFINE COUPLING-CONSTANTS OF COPPER ATOMS IN ALPHA-QUARTZ

International audienceno abstrac

MULTIBAND ELECTRON-SPIN-RESONANCE SPECTROSCOPY OF RARE-EARTH S-IONS IN GLASSES - THE ISOSPECTRAL FREQUENCY RATIO METHOD

International audienceno abstrac