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Optimistic atomic broadcast: a pragmatic viewpoint

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APPROXIMATING k-MEDIAN VIA PSEUDO-APPROXIMATION

Ola Nils Anders Svensson

We present a novel approximation algorithm for k-median that achieves an approximation guarantee of 1 + root 3 + epsilon, improving upon the decade-old ratio of 3 + epsilon. Our improved approximation ratio is achieved by exploiting the power of pseudo-app ...

Siam Publications2016

In [1], an important step toward the characterization of distributed detection over adaptive networks has been made by establishing the fundamental scaling law of the error probabilities. However, empirical evidence reported in [1] revealed that a refined ...

IEEE2015

iPRP: Parallel Redundancy Protocol for IP Networks

Jean-Yves Le Boudec, Dan-Cristian Tomozei, Miroslav Popovic

Reliable packet delivery within stringent delay constraints is of primal importance to industrial processes with hard real-time constraints, such as electrical grid monitoring. Because retransmission and coding techniques counteract the delay requirements, ...

2015

Dynamics across the structural transitions at elevated temperatures in Na0.7CoO2

Martin Mansson

The layered transition-metal oxide Nax CoO2 has been studied extensively both for its correlated electronic properties as well as for potential battery applications. It was discovered that high-temperature Na ion vacancy order and dynamics can be very usef ...

E D P Sciences2015

First-order expansion of homogenized coefficients under Bernoulli perturbations

Jean-Christophe Mourrat

Divergence-form operators with stationary random coefficients homogenize over large scales. We investigate the effect of certain perturbations of the medium on the homogenized coefficients. The perturbations considered are rare at the local level, but when ...

Gauthier-Villars/Editions Elsevier2015

Distributed birefringence measurements using polarisation correlation in phase-sensitive OTDR

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Xin Lu

A method based on phase-sensitive OTDR is proposed for distributed birefringence measurements along optical fibres. A high accuracy is experimentally demonstrated, enabling the characterisation of single-mode fibres with a minimum detectable birefringence ...

IEEE2014

Punching shear strength of PC Slabs

Aurelio Muttoni, Juan Sagaseta Albajar, Thibault Clément

This paper presents the results of an experimental research on the influence of prestressing on the punching shear strength of flat slabs. The tests refer to 13 geometrically identical specimens 250 mm thick that were loaded in order to investigate the inf ...

fib Symposium Tel-Aviv 20132013

During the commissioning of the CERN Proton Synchrotron multiturn extraction, tests with different beam intensities were performed in order to probe the behavior of resonance crossing in the presence of possible space charge effects. The initial beam inten ...

American Physical Society2013

AUTOMATIC FLIGHT MODE

Cyril Botteron, Phillip Tomé, Aleksandar Jovanovic, Jérôme Leclère, Youssef Tawk

The invention relates to an electronic device which is capable of being transported on an airplane and includes a radio transmitter. The invention comprises: a) collecting acceleration data and/or precession data from the electronic device; b) estimating p ...

2013

Fungi cause important deteriorations of corms from Crocus sativus L. In order to screen the antifungal properties of this organ to fight such infections, two independent experiments based on the lyophilized and sterilized external (peel) and internal parts ...

Elsevier2013