Concept

Extensivité et intensivité (physique)

Publications associées (274)

Mechanism of collisionless sound damping in dilute Bose gas with condensate

We develop a microscopic theory of sound damping due to Landau mechanism in dilute gas with Bose condensate. It is based on the coupled evolution equations of the parameters describing the system. These equations have been derived in earlier works within a ...

2013

Hydrogen trapping in delta-Pu: insights from electronic structure calculations

Michael Frederick Francis

Density functional theory calculations have been performed to provide details of the structural and charge-transfer details related to the solid solution of hydrogen in (delta)-plutonium. We follow the Flanagan model that outlines the process by which hydr ...

Iop Publishing Ltd2013

Groups of piecewise projective homeomorphisms

Nicolas Monod

The group of piecewise projective homeomorphisms of the line provides straightforward torsion-free counterexamples to the so-called von Neumann conjecture. The examples are so simple that many additional properties can be established. ...

Natl Acad Sciences2013

Critical Landau velocity in helium nanodroplets

Marcel Drabbels, Evgeniy Loginov, Nils Benedict Brauer, Alberto Hernando de Castro

The best-known property of superfluid helium is the vanishing viscosity that objects experience while moving through the liquid with speeds below the so-called critical Landau velocity. This critical velocity is generally considered a macroscopic property ...

American Physical Society2013

Growth and Characterization of Centimeter-Sized Ba2LaFeNb4O15 Crystals from High-Temperature Solution under a Controlled Atmosphere

Gervais Chapuis, Kurt Schenk

Centimeter-sized single crystals of Ba2LaFeNb4O15 were grown from a high-temperature solution by using LiBO2 flux and a sealed platinum assembly. The obtained single crystals display the same physical properties as their ceramic counterparts. A frequency-d ...

Wiley-Blackwell2013

Demodulation of Spatial Carrier Images: Performance Analysis of Several Algorithms Using a Single Image

Sébastien Equis

Optical full-field techniques have a great importance in modern experimental mechanics. Even if they are reasonably spread among the university laboratories, their diffusion in industrial companies remains very narrow for several reasons, especially a lack ...

Springer Verlag2013

Methane Reacts with Heteropolyacids Chemisorbed on Silica to Produce Acetic Acid under Soft Conditions

David Lyndon Emsley, Aaron James Rossini, Jeremie Pelletier

Selective functionalization of methane at moderate temperature is of crucial economic, environmental, and scientific importance. Here, we report that methane reacts with heteropolyacids (HPAs) chemisorbed on silica to produce acetic acid under soft conditi ...

AMER CHEMICAL SOC2013

A diapycnal diffusivity model for stratified environmental flows

Damien Bouffard

The vertical diffusivity of density, K-rho, regulates ocean circulation, climate and coastal water quality. K-rho is difficult to measure and model in these stratified turbulent flows, resulting in the need for the development of K-rho parameterizations fr ...

Elsevier Science Bv2013

The effect of crowding and confinement: a comparison of Yfh1 stability in different environments

Paolo De Los Rios

Crowding and confinement can affect protein stability, favouring the more compact species amongst the folded and unfolded conformations. An unbiased assessment of the relative efficacy of crowded and confined environments has been hampered so far by the pa ...

Institute of Physics2013

Measuring the thermal balance of a snow avalanche

Michael Lehning, Betty Sovilla, Tobias Jonas, Walter Steinkogler

Avalanches can exhibit many different flow regimes from powder clouds to slush flows. Flow regimes are largely controlled by the properties of the snow released and entrained along the path. Recent investigations showed the temperature of the moving snow t ...

2013

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