Concept

Atmosphère de Vénus

Publications associées (48)

Microbiome of the upper troposphere: Species composition and prevalence, effects of tropical storms, and atmospheric implications

The composition and prevalence of microorganisms in the middle-to-upper troposphere (8-15 km altitude) and their role in aerosol-cloud-precipitation interactions represent important, unresolved questions for biological and atmospheric science. In particula ...

2013

Luminescence studies on photostimulable phosphor CsBr:Eu2+

Giovanni Dietler, Kanat Dukenbayev

Photostimulable phosphor CsBr:Eu2+ is prepared through a solid-state reaction. The effect of annealing atmosphere on photoluminescence and photostimulated luminescence was investigated. Optimum luminescence intensity was obtained when samples were prepared ...

Taylor & Francis2013

Generation of Whistler-Wave Heated Discharges with Planar Resonant rf Networks

Christoph Hollenstein, Alan Howling, Philippe Frédérique Bruno Guittienne

Magnetized plasma discharges generated by a planar resonant rf network are investigated. A regime transition is observed above a magnetic field threshold, associated with rf waves propagating in the plasma and which present the characteristics of whistler ...

Amer Physical Soc2013

Mode tuning of photonic crystal nanocavities by photoinduced non-thermal oxidation

Laurent Balet, Massimo Gurioli, Santosh Kumar

A method to achieve photoinduced tuning of PhC nanocavity modes is discussed and implemented. It is based on light induced oxidation in air atmosphere with very low thermal budget which produces a local reduction of the GaAs membrane effective thickness an ...

2012

Modelling the effect of size on the aerial dispersal of microorganisms

Edward Mitchell, Isabelle Bey, Symeon Koumoutsaris

Aim We investigate the long-standing question of whether the small size of microbes allows most microbial species to colonize all suitable sites around the globe or whether their ranges are limited by opportunities for dispersal. In this study we use a mod ...

2012

Low-temperature indium hermetic sealing of alkali vapor-cells for chip-scale atomic clocks

Nico de Rooij, Danick Briand, Yves Pétremand

We present a low-temperature indium hermetic bonding technique on wafer level without using flux, active atmosphere or other pretreatment of the indium. Its simplicity and low temperatures allow encapsulation of sensitive MEMS devices. Bonding stronger tha ...

IEEE2012

Design, testing and characterization of innovative TiN–TiO2 surfaces inactivating bacteria under low intensity visible light

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines, Oualid Baghriche

Ti was sputtered in a plasma chamber under a N2 atmosphere, depositing TiN films on polyester fibers. These films show a significant adsorption in the visible spectral region. A TiN layer 50 nm thick sputtered for 3 min under low intensity/actinic visible ...

Royal Soc Chemistry2012

Water Vapor and Heat Exchanges over Lakes

Nikki Vercauteren

Quantifying the interaction of the atmosphere and water surfaces is of great importance for water resources management, climate studies of ocean-atmosphere exchange and regional climate in coastal areas. Atmospheric dynamics over water surfaces have genera ...

EPFL2011

Influence of the moisture content on the shear strength of welded wood-to-wood connections

Yves Weinand, Bernhard Stamm, Benjamin Hahn, Georg Lorenz Rossmair

Friction welding of wood is an innovative process, able to join pieces of wood without additional adhesives. Because of its hygroscopic properties, the wood matrix absorbs humidity at the surface from the surrounding atmosphere. Its moisture content is str ...

Berne University of Applied Sciences, Architecture, Wood and Civil Engineering2011

A radiative transfer model for an idealized and non-scattering atmosphere and its application for ground-based remote sensing of the troposphere

Marc Schneebeli Zeugin

Inversion of tropospheric profiles from ground-based microwavemeasurements requires a simple and accurate model for calculating the brightness temperatures as received by the radiometer. In the first part, an analytic solution of the radiative transfer equ ...

Elsevier2011

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