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Publications associées (236)

Quantum Dots and Wires to improve Enzymes-Based Electrochemical Bio- sensing

Giovanni De Micheli, Sandro Carrara, Cristina Boero

An investigation on nano-structured electrodes to detect different metabolites is proposed in this paper. Three different metabolites are considered: glucose, lactate, and cholesterol. The direct detection of hydrogen peroxide is also considered since it d ...

2009

Phase-contrast imaging and tomography at 60 keV using a conventional x-ray tube source

Christian David

Phase-contrast imaging at laboratory-based x-ray sources using grating interferometers has been developed over the last few years for x-ray energies of up to 28 keV. Here, we show first phase-contrast projection and tomographic images recorded at significa ...

2009

9 MHz vibrating body FET tuning fork oscillator

Mihai Adrian Ionescu, Maher Kayal, Daniel Grogg, Fabrizio Lo Conte

A 9.4MHz micro-electromechanical oscillator based on a Vibrating Body Field Effect Transistor (VB-FET) is presented in this work. The tuning fork VB-FET used in this work provides a high quality factor of 9400 in the open-loop configuration and a low equiv ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Display method and system using transmissive and emissive components

Sabine Süsstrunk

A method and system is provided for creating a display and generating images. Creating the display includes receiving a transmissive display component over an emissive display component and positioning each emissive display pixel with one or more transmiss ...

2009

Potential energy landscape of metallic Moire patterns

Klaus Kern, Peter Wahl

The modulation of the electronic structure of cobalt islands on Cu(111) by the Moire pattern of an Ag overlayer is investigated. Acquisition of tunneling spectroscopy maps reveals a local modification of both the energy and the amplitude of the cobalt-rela ...

2009

Fabrication of metallic nanoparticles by electrochemical discharges

Hannes Bleuler, Ashwin Lal

A method for the fabrication of metallic nanoparticles in large quantities by electrochemical discharges is presented. In an aqueous electrolyte, large current density (similar to 1 A/mm(2) at similar to 20 V) leads to the formation of a 'gas film' around ...

Elsevier2008

A new strategy of molecular overcharge protection shuttles for lithium ion batteries

Michael Graetzel, Shaik Mohammed Zakeeruddin

The conventional strategy of overcharge protection for lithium ion batteries uses redox molecules having oxidation potential higher than the cathodic materials in the electrolyte. Here we propose a novel approach by using redox molecules having reduction p ...

2008

Neodymium-deficient nickelate oxide Nd1.95NiO4+ı as cathode material for anode-supported intermediate temperature solid oxide fuel cells

Jan Van Herle, Stefan Diethelm

The neodymium-deficient nickelate Nd1.95NiO4+ı, mixed conducting K2NiF4-type oxide, was evaluated as cathode for solid oxide fuel cells. The electrochemical properties were investigated on planar Ni–YSZ anode-supported SOFC based on co-tape casted and co-f ...

2008

Modeling of Local Cell Degradation in Solid Oxide Fuel Cells: Cumulative Effect of Critical Operating Points

Daniel Favrat, Jan Van Herle, Stefan Diethelm, Antonin Faes, Zacharie Wuillemin, Arata Nakajo, Nordahl Autissier

A CFD model was developed to predict with accuracy the local electrochemical performance in an operating solid oxide fuel cell. A particular focus was given on the study of performance limitations and degradation sources caused by the design of the fuel ce ...

European Fuel Cell Forum2008

Ray scattering model for spherical transparent particles

Roger Hersch, Mathieu Hébert

By printing a variable number of droplets onto the same pixel location, ink jet printers produce pixels at variable dot-sizes yielding several darkness levels. Varying the number of printed droplets affects the ink volume deposited onto the substrate. In t ...

2008

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