Concept

Système horaire sur 24 heures

Publications associées (9)

Rocker oscillator time bases

Since the invention of the pendulum clock by Christiaan Huygens in 1657, precision timekeepers have been regulated by oscillators. Although the pendulum is not an isochronous oscillator, its introduction as a time basis for clock regulation led to a signif ...

2021

Application of an Ensemble Kalman filter to a semi-distributed hydrological flood forecasting system in alpine catchments

Giovanni De Cesare, Javier García Hernández, Alain Tommy Foehn, Anne Schwob

One of the key success factor for hydrological forecasts is the establishment of initial conditions that represent well the conditions of the simulated basin at the beginning of the forecast. Real-time Data Assimilation (DA) has been shown to allow improvi ...

2019

Wind slab formation in snow: experimental setup and first results.

Michael Lehning, Christian Gabriel Sommer, Charles Fierz

Geophys . Res. Abstr. 18: EGU2016‐11274. The formation of wind-hardened surface layers, also known as wind slabs or wind crusts, is studied. Better knowledge about which processes and parameters are important will lead to an improved understanding of the m ...

2016

Investigation of 2R-Cell Degradation under Thermal Cycling and RedOx Cycling Conditions by Electrochemical Impedance Spectroscopy

Jan Van Herle, Stefan Diethelm, Vaibhav Singh

A 2R-cell with a 10 cm2 active area LSCF cathode on a CGO buffer layer was tested at 780°C under thermal and RedOx cycling conditions; 20 thermal cycles were performed between 780°C and 100°C, using 200°C/h heating ramps and natural cooling, followed by 20 ...

2015

Demand Driven Employee Scheduling for Retail Outlets

Colin Neil Jones

This paper studies the problem of demand driven employee scheduling for direct-sales retail outlets. The demand for sales personnel during each half hour is predicted a week in advance based on previous recorded data and the problem of computing an optimal ...

2009

Recognition and Understanding of Meetings Overview of the European AMI and AMIDA Projects

Hervé Bourlard, Steve Renals

The AMI and AMIDA projects are concerned with the recognition and interpretation of multiparty (face-to-face and remote) meetings. Within these projects we have developed the following: (1) an infrastructure for recording meetings using multiple microphone ...

2008

Recognition and Understanding of Meetings Overview of the European AMI and AMIDA Projects

Hervé Bourlard, Steve Renals

IDIAP2008

Cryptanalysis of the Sidelnikov cryptosystem

Mohammad Amin Shokrollahi, Lorenz Minder

We present a structural attack against the Sidelnikov cryptosystem. The attack creats a private key from a give public key. Its running time is subexponential and it is effective if the parameters of the Reed-Muller code allow for efficient sampling of min ...

Springer Verlag2007

Simulation on a personal computer of the weekly operation of a hydroelectric complex

The authors describe a mathematical tool to help in the exploitation of a hydroelectric complex operated in partnership. The aim is the simulation of the exploitation of a hydroelectric system week by week, so as to optimise system operation, the model dev ...

1986

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