Concept

Atmosphère de Vénus

Publications associées (48)

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Phosphorescent compounds

Paul Bowen

Phosphorescent composition comprises an alkaline earth metal silicate doped with europium fluoride and another lanthanide fluoride. Independent claims are also included for: (1) producing a composition as above by grinding a mixture of alkaline earth metal ...

2007

Venus plus delta f: A bootstrap current calculation module for 3-D configurations

Wilfred Anthony Cooper, Stephan Brunner, Trach-Minh Tran

A new three-dimensional code, VENUS+delta f, for neoclassical transport calculations in nonaxisymmetric toroidal systems is presented. Numerical drift orbits from the original VENUS code and the delta f method developed for tokamak transport calculations a ...

2006

A Weather Station for SensorScope

Guillermo Barrenetxea Kobas, Henri Julien Dubois-Ferrière, Roger Meier

The SensorScope project is a collaboration between environmental scientists and hardware/software engineers at EPFL. It will consist of two large-scale outdoor sensor networking deployments, the first on the EPFL campus, and the second on an alpine glacier ...

2006

Fate of rising methane bubbles in stratified waters: How much methane reaches the atmosphere?

Alfred Johny Wüest

[ 1] There is growing concern about the transfer of methane originating from water bodies to the atmosphere. Methane from sediments can reach the atmosphere directly via bubbles or indirectly via vertical turbulent transport. This work quantifies methane g ...

Amer Geophysical Union2006

Characterization of supersonic low pressure plasma jets

Malko Gindrat

Low Pressure Plasma Spraying (LPPS) processes use a DC plasma jet expanding at low pressure for fast deposition of dense coatings in a controlled atmosphere. The LPPS technology is widely used industrially in particular in the aeronautics and medical indus ...

EPFL2004

Surface modification of polyester films by RF plasma

Christoph Hollenstein, John Christopher Plummer, Nicolas Xanthopoulos

Plasma treatment of PET films was carried out under argon, followed by exposure to an oxygen atmosphere. The films underwent considerable changes in surface composition and morphology, as demonstrated by contact angle measurements, FTIR-ATR, AFM, and XPS. ...

2000

Growth kinetics of GaN in ammonia atmosphere

Nicolas Grandjean

The kinetics of GaN growth by MBE using ammonia as the reactive nitrogen source is studied both under Ga-rich and N-rich conditions. It is shown that adsorption site blocking by Ga and N atoms as well as by surface NH, complexes is a crucial factor to cont ...

1999

Possible self-organizing dynamics for land-atmosphere interaction

Andrea Rinaldo, Paolo d'Odorico

Land-atmosphere interactions play a central role in the mesoscale evolution of hydrologic fields like rainfall and soil moisture. A water balance model, capturing the essence of such interaction and driven by mesoscale and synoptic processes, was found to ...

1998