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Diurnal evolution of negative atmospheric ions above the boreal forest: from ground level to the free troposphere

Related publications (40)

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Copper(I) and copper(II) binding to β-amyloid 16 (Aβ16) studied by electrospray ionization mass spectrometry

Hubert Girault, Liang Qiao, Michel Prudent, Yu Lu

Copper-b-amyloid 16 (Aβ16) complexes were investigated by electrospray ionization mass spectrometry (ESI-MS). Copper(I) and (II) complexes were formed on-line in a microchip electrospray emitter by using a sacrificial copper electrode as the anode in posit ...

Royal Society of Chemistry2010

Electrospray ionization mass spectrometry

Michel Prudent

Metal ions are essential elements in all living systems. Their detections and identifications in biological processes require different methodologies. Mass spectrometry is one of the commonly used techniques in bioinorganic analyses to fulfill these requir ...

EPFL2009

Atmospheric Boundary-Layer Dynamics with Constant Bowen Ratio

Motivated by the observation that the diurnal evolution of sensible and latent heat fluxes tends to maintain a constant Bowen ratio, we derive approximate solutions of the ordinary differential equations of a simplified atmospheric boundary-layer (ABL) mod ...

Springer Netherlands2009

Electrospray ion beam deposition and mass spectrometry of nonvolatile molecules and nanomaterials

Stephan Rauschenbach

The vacuum deposition of complex functional molecules and nanoparticles by thermal sublimation is often hindered due to their extremely low vapor pressure. This especially impedes the application of ultrahigh vacuum (UHV) based analytical and surface modif ...

EPFL2008

Ion Beam Etching: Replication of Micro Nano-structured 3D Stencil Masks

Jürgen Brugger, Luis Guillermo Villanueva Torrijo

Ion beam LIGA allows the etching of 3D nano-structures by direct writing with a nano-sized beam. However, this is a relatively time consuming process. We propose here another approach for etching structures on large surfaces and faster, compared to the dir ...

2008

Atmospheric boundary-layer structure observed during a haze event due to forest-fire smoke

Marc Parlange

During a haze event in Baltimore, U.S.A. from July 6 to 8, 2002, smoke from forest fires in the Québec region (Canada), degraded air quality and impacted upon local climate, decreasing solar radiation and air temperature. The smoke particles in and above t ...

2005

Study of gas ionization in a glow discharge and development of a micro gas ionizer for gas detection and analysis

In the pursuit of a portable gas detector/analyser we studied the components of an ion mobility spectrometer (IMS), which is a device that lends itself well to miniaturisation. The component we focused on was the ionizer. We fabricated a series of micro io ...

EPFL2004

In the framework of the European Aerosol Research Lidar Network to Establish an Aerosol Climatology (EARLINET), 19 aerosol lidar systems from 11 European countries were compared. Aerosol extinction or backscatter coefficient profiles were measured by at le ...

2004

The anionic clusters HOs5-(Co)(15), PtRu5C(CO)(15), Os10C-(CO)(24), Os-17(CO)(36), Os-20(CO)(40) [Co6C(CO)15]2-, Pt3Ru10C2-(CO)(32) and Pd6Ru6(CO)(24) have been analysed by energy-dependent electrospray ionisation m ...

2003

[1] Convection in an ice-covered lake, driven by the absorption of solar radiation, is investigated by means of temperature microstructure technique. This type of convection typically occurs in spring, when melting snow on the ice cover enables solar radia ...

Amer Geophysical Union2003