Concept

Extinction massive

Publications associées (79)

First Observation of PeV-Energy Neutrinos with IceCube

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

We report on the observation of two neutrino-induced events which have an estimated deposited energy in the IceCube detector of 1.04 +/- 0.16 and 1.14 +/- 0.17 PeV, respectively, the highest neutrino energies observed so far. These events are consistent wi ...

American Physical Society2013

Regional imprints of millennial variability during the MIS 3 period around Antarctica

Jérôme Chappellaz

The oxygen-isotope records from Greenland ice cores show a very strong, reproducible pattern of alternation between warm Greenland Interstadials (GI) and cold Greenland Stadials (GS) at millennial-scale during the last glacial period. Here we summarise wha ...

Elsevier BV2012

Analysis of Impact of an Annual Robotics Festival

Francesco Mondada, Julia Fink, Fanny Riedo, Mariza Freire

For four years a robotics festival has taken place at the Ecole Polytechnique Fédérale de Lausanne (EPFL), in Switzerland. As the number of visitors has rapidly grown from a few thousands to a dozen thousands, it gives an opportunity to investigate who is ...

IEEE2012

A global picture of the first abrupt climatic event occurring during the last glacial inception

Jérôme Chappellaz

The last deglaciation was marked by large, hemispheric, millennial-scale climate variations: the Bølling-Allerød and Younger Dryas periods in the north, and the Antarctic Cold Reversal in the south. A chronology from the high-accumulation Law Dome East Ant ...

American Association for the Advancement of Science (AAAS)2012

Optical characterization of fully programmable MEMS diffraction gratings

Michael David Canonica, Wilfried Noell, Robert Andrew Lockhart

We have fabricated and characterized fully programmable diffraction gratings consisting of 64 silicon micro-mirrors. The mirrors are 700 mu m long and 50 mu m wide with a fill factor of 90%. They are actuated electrostatically and move down by 1.25 mu m wh ...

Optical Society of America2012

Encoding and decoding of information

Henry Markram

Method and system for weighting the amplitude of an event in a time -based code. The time-based code is divided into time intervals. Each of the time intervals of the time-based code corresponds to a digit in the received signal. Each digit of a first stat ...

2011

Variations of air content in Dasuopu ice core from AD 1570-1927 and implications fore climate change

Jérôme Chappellaz

In relation to Arctic warming, the possible occurrence of methane hydrate degassing events has attracted an increasing interest in recent years. We evaluate the atmospheric impact of rapid and massive emissions of methane and how they are imprinted in ice ...

Elsevier BV2011

Catchment residence and travel time distributions: The master equation

Andrea Rinaldo, Enrico Bertuzzo, Gianluca Botter

The probability density functions (pdf's) of travel and residence times are key descriptors of the mechanisms through which catchments retain and release old and event water, transporting solutes to receiving water bodies. In this paper we analyze theoreti ...

American Geophysical Union2011

Coupling and Kinematic properties of Slow Slip Events in the Guerrero Gap, Mexico

Mathilde Edmée Lucette Radiguet de la Bastaie

Large slow slip events (SSEs) occur in the so-called Guerrero Gap, a segment of the Mexican subduction zone where no large earthquake occurred for more than one century. Analyzing the relations between slow slip and earthquakes in this region is a key ques ...

2011

Millennial and sub-millennial scale climatic variations recorded in polar ice cores over the last glacial period

Jérôme Chappellaz

Since its discovery in Greenland ice cores, the millennial scale climatic variability of the last glacial period has been increasingly documented at all latitudes with studies focusing mainly on Marine Isotopic Stage 3 (MIS 3; 28-60 thousand of years befor ...

Copernicus GmbH2010

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