Peter Ryser

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (68)

Solution of the tunneling-percolation problem in the nanocomposite regime

Peter Ryser, Claudio Grimaldi, Thomas Maeder, Gianluca Ambrosetti

We noted that the tunneling-percolation framework is quite well understood at the extreme cases of percolation-like and hopping-like behaviors but that the intermediate regime has not been previously discussed, in spite of its relevance to the intensively ...

2010

Novel chemico-mechanical approach towards long-term implantable glucose sensing

Peter Ryser, Jean-Michel Sallese, Eric Meurville, Christophe Boss

The proof of concept of a continuously sensing affinity device based on the glucose-dependent viscosity of a sensitive solution containing dextran and Concanavalin A has been successfully demonstrated. The biosensor incorporates a piezoelectric diaphragm a ...

Elsevier2009

Sensors and packages based on LTCC and thick-film technology for severe conditions

Peter Ryser, Thomas Maeder, Caroline Jacq

Reliable operation in harsh environments such as high temperatures, high pressures, aggressive media and space, poses special requirements for sensors and packages, which usually cannot be met using polymer-based technologies. Ceramic technologies, especia ...

2009

Hermetic package for optical MEMS

Peter Ryser, Jacques Jacot, Thomas Maeder, Yannick Sébastien Fournier, Frank Seigneur

This article describes the design and fabrication of a hermetic LTCC package for an optical MEMS chip designed for space applications. The package must ensure electrical and optical connections, mechanical positioning, atmosphere control, and finally low t ...

2009

Optimal percolation of disordered segregated composites

Peter Ryser, Claudio Grimaldi, Thomas Maeder, Niklaus Johner

We evaluate the percolation threshold values for a realistic model of continuum segregated systems, where random spherical inclusions forbid the percolating objects, modellized by hard-core spherical particles surrounded by penetrable shells, to occupy lar ...

2009

Size-Selective Diffusion in Nanoporous but Flexible Membranes for Glucose Sensors

Peter Ryser, Eric Meurville, Antoine Barraud, Nao Takano

A series of nanoporous membranes prepared from polyethylene-block-polystyrene were applied for size-selective diffusion of glucose and albumin molecules. Millimeter-sized test cells for characterization of such molecular diffusions were designed assuming a ...

American Chemical Society2009

Load sensing surgical instruments

Peter Ryser, Thomas Maeder, Caroline Jacq

Force and pressure sensing technology applied to smart surgical instruments as well as implants allow to give a direct feedback of loads to the surgeon lead to better reliability and success of surgical operations. A common technology used for sensors is l ...

Springer Verlag2009

Electron tunneling in conductor-insulator composites with spherical fillers

Peter Ryser, Claudio Grimaldi, Thomas Maeder, Niklaus Johner, Gianluca Ambrosetti

We report on our Monte Carlo calculations of the conductivity of monosized and conducting spherical particles dispersed in a homogeneous matrix, with interparticle transport mechanism given by electron tunneling. We show that our numerical results can be r ...

2009

Optimisation of a Thick-Film 10...400 N Force Sensor

Peter Ryser, Thomas Maeder, Giancarlo Corradini, Niklaus Johner, Gregory Affolter

The ring-on-ring bending principle allows the fabrication of simple, low-cost thick-film piezoresistive sensors for compressive forces in the 10 to 400 N range. However some imperfections are encountered in its basic embodiment, such as relatively high for ...

Elsevier2008

Percolative properties of hard oblate ellipsoids of revolution with a soft shell

Peter Ryser, Claudio Grimaldi, Niklaus Johner, Gianluca Ambrosetti

We present an in-depth analysis of the geometrical percolation behavior in the continuum of random assemblies of hard oblate ellipsoids of revolution. Simulations were carried out by considering a broad range of aspect-ratios, from spheres up to aspect-rat ...

2008

Page 4 sur 7