Concept

Théories d'une vitesse de lumière variable

Publications associées (9)

Euclid: Calibrating photometric redshifts with spectroscopic cross-correlations

Frédéric Courbin, Georges Meylan, Yi Wang, Richard Massey

Cosmological constraints from key probes of the Euclid imaging survey rely critically on the accurate determination of the true redshift distributions, n(z); of tomographic redshift bins. We determine whether the mean redshift, < z >, of ten Euclid tomogra ...

EDP SCIENCES S A2023

Synthesis of near-diffraction-free orbital-angular-momentum space-time wave packets having a controllable group velocity using a frequency comb

Tobias Kippenberg, Maxim Karpov, Zhe Zhao, Hao Song, Xinzhou Su

Novel forms of light beams carrying orbital angular momentum (OAM) have recently gained interest, especially due to some of their intriguing propagation features. Here, we experimentally demonstrate the generation of near-diffraction-free two-dimensional ( ...

Optica Publishing Group2022

Generalized interpretation and identification of separable effects in competing event settings

Mats Julius Stensrud

In competing event settings, a counterfactual contrast of cause-specific cumulative incidences quantifies the total causal effect of a treatment on the event of interest. However, effects of treatment on the competing event may indirectly contribute to thi ...

2020

Comparison of Feedback Linearization and Model Predictive Techniques for Variable Speed Limit Control

Nikolaos Geroliminis, Isik Ilber Sirmatel, Yihang Zhang

Different types of variable speed limit (VSL) controllers have been proposed to improve the traffic mobility at highway bottlenecks. However, the benefit of VSL is sometimes deteriorated by the capacity drop phenomenon introduced by the disordered lane cha ...

IEEE2018

The evolution of the [O II], H beta and [O III] emission line luminosity functions over the last nine billions years

Jean-Paul Richard Kneib, Johan Comparat, Anand Stéphane Raichoor, Jeffrey Newman, Timothée Guy Olivier Delubac, Johan Richard

Emission line galaxies are one of the main tracers of the large-scale structure to be targeted by the next-generation dark energy surveys. To provide a better understanding of the properties and statistics of these galaxies, we have collected spectroscopic ...

Oxford Univ Press2016

Fast Initial Continuous Current Pulses vs Return Stroke Pulses in Tower-initiated Lightning

Mario Paolone, Marcos Rubinstein, Mohammad Azadifar, Stefan Metz, Davide Pavanello

We present a study focused on pulses superimposed on the initial continuous current of upward negative discharges. The study is based on experimental data consisting of correlated lightning current waveforms recorded at the instrumented Santis Tower in Swi ...

Amer Geophysical Union2016

Galaxy Scale Lenses In The Rcs2. I. First Catalog Of Candidate Strong Lenses

We present the first galaxy scale lens catalog from the second Red-Sequence Cluster Survey. The catalog contains 60 lensing system candidates comprised of Luminous Red Galaxy (LRG) lenses at 0.2 less than or similar to z less than or similar to 0.5 surroun ...

2012

VERS UN MODÈLE PROACTIF POUR IDENTIFIER DES RISQUES DE TRAFIC

André-Gilles Dumont, Ashish Bhaskar, Minh Hai Pham

Our goal is to develop motorway traffic risks identification models using disaggregate traffic data, meteorological data and crash database for a study site at a two-lane-per-direction section on motorway A1 in Urtenen-Schönbühl, Switzerland. We define tra ...

2010

Endoscope-tip interferometer for ultrahigh resolution frequency domain optical coherence tomography in mouse colon

Rainer Leitgeb

Frequency domain optical coherence tomography (FD-OCT) allows interferometer topologies with simplified system construction and handling. Problems of dispersion and polarization matching between the sample and reference arms, as well as beamsplitter spectr ...

2006

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