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Publications associées (239)

A soft contact lens with a MEMS strain gage embedded for intraocular pressure monitoring

Philippe Renaud, Arnaud Bertsch, Matteo Leonardi

We propose a novel approach to intraocular pressure (IOP) measurement allowing minimal invasive continuous monitoring over prolonged periods, regardless of patient position and activities [1]. The key element of this innovative measurement method is a soft ...

2003

Robust exponential filtering for uncertain systems with stochastic and polytopic uncertainties

Ali H. Sayed

This paper addresses the problem of robust exponential filtering for discrete uncertain systems with mixed stochastic and deterministic uncertainties, in addition to unmodelled nonlinearities and measurement and process noises with bounded variances. ...

2002

The OFMET Watt Balance: Progress Report

René Dändliker

A new type of moving-coil Watt balance with a compact design is under construction at the Swiss Federal Office of Metrology (OFMET). Recently, several key components of the system have been characterized. In this paper, a detailed description of the mechan ...

2001

Can accelerometry accurately predict the energy cost of uphill/downhill walking?

Kamiar Aminian, Yves Schutz

To evaluate whether an activity monitor based on body acceleration measurement can accurately assess the energy cost of the human locomotion, 12 subjects walked a combination of three different speeds (preferred speed+/-1 km/h) and seven slopes (-15 to + 1 ...

2001

System measure for persistence in holographic recording and application to singly-doped and doubly-doped lithium niobate

Demetri Psaltis

We define a measure for persistence in holographic recording. Using this measure and the known measures for dynamic range and sensitivity, we compare the performance of singly-doped and doubly-doped LiNbO3 crystals. We show that the range of performance th ...

2001

Hydroxyl radical/ozone ratios during ozonation processes. II. The effect of temperature, pH, alkalinity, and DOM properties

Urs von Gunten

The influence of temperature, pH, alkalinity, and type and concentration of the dissolved organic matter (DOM) on the rate of ozone (O-3) decomposition, O-3-exposure, . OH-exposure and the ratio R-ct of the concentrations of . OH and O-3 has been studied. ...

2000

CMOS compatible fully integrated Mach-Zehnder interferometer in SOI technology

Mihai Adrian Ionescu, Philippe Renaud, Michel Declercq, Philippe Robert, Philippe Flückiger

We present a fully integrated Mach-Zehnder interferometer in silicon-on- insulator technology. Modulation of the index of refraction is achieved through the plasma dispersion effect resulting in a bandwidth in the 10 MHz range. A particular and innovative ...

2000

Direct observation of new transitions in the absorption spectra of a V-groove quantum wire waveguide

Elyahou Kapon, Alok Rudra, Marc-André Dupertuis, Daniel Oberli, Klaus Leifer

We report on the direct absorption measurement of the polarization selection rules in a V-groove QWR waveguide. Attenuation measurements in a 1 mm long waveguide were performed from 10 K up to room temperature. These measurements yielded the QWR DOS select ...

2000

Measurement of radiation damping rate constants in nuclear magnetic resonance by inversion recovery and automated compensation of selective pulses

Geoffrey Bodenhausen

A method is proposed to measure the radiation damping rate const. based on the anal. of the nonexponential recovery of the magnetization after inversion. It is applicable when the recovery is dominated by radiation damping rather than by relaxation process ...

2000

Automatic Monitoring of Bridges using Electronic Inclinometers

Olivier Burdet

The paper presents a new method for the automatic monitoring of bridges deformations. Based on the use of electronic high precision inclinometers, this method permits to accurately reconstruct the deflected shape of the bridge and to follow its long-term e ...

IABSE, , Lucerne Congress Structural Engineering for Meeting Urban Transportation Challenges2000

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