Results 41 to 50 of about 239,132 (234)
Athermal echelle grating filter in silicon-on-insulator using a temperature-synchronized input.
Optics Express, 2018 Athermal design of integrated photonic devices can reduce the need for active temperature stabilization and consequently the energy required to operate photonic integrated circuits.
D. Melati +6 more
semanticscholar +1 more source
Actes SémiotiquesCette contribution explore des questions autour des échelles d’évaluation, qu’elles soient visuelles ou orales. Après avoir défini une base épistémologique à une conception sémiotique de la mesure de l’expérience subjective et de l’échelle d’évaluation ...
Mattéo Raimbault
doaj +1 more source
UNEXPECTED SERIES OF REGULAR FREQUENCY SPACING OF δ SCUTI STARS IN THE NON-ASYMPTOTIC REGIME. II. SAMPLE–ECHELLE DIAGRAMS AND ROTATION [PDF]
, 2016 A sequence search method was developed for searching for regular frequency spacing in δ Scuti stars by visual inspection (VI) and algorithmic search. The sample contains 90 δ Scuti stars observed by CoRoT. An example is given to represent the VI.
M. Paparó +3 more
semanticscholar +1 more source
Mesure et Évaluation en Éducation, 2009 Cet article présente les résultats d’une étude ayant pour objectif la construction et la validation d’une nouvelle échelle de mesure des négociations perçues entre le professeur et ses élèves en éducation physique (ENPEP).
Jean-Philippe Dupont +3 more
doaj +1 more source
Geological processes shaping freshwater biodiversity: a synthesis of global evidence
Biological Reviews, EarlyView.ABSTRACT Recent genomic data highlight the key roles of geological processes in shaping the diversification and biogeography of freshwater lineages. Specifically, physical processes such as tectonic uplift, erosion, glaciation, lake formation, and sea‐level fluctuation contribute extensively to the evolution of biotic diversity within and among ...
Jonathan M. Waters +3 more
wiley +1 more source
The re-flight of the Colorado high-resolution Echelle stellar spectrograph (CHESS): improvements, calibrations, and post-flight results [PDF]
Astronomical Telescopes + Instrumentation, 2016 In this proceeding, we describe the scientific motivation and technical development of the Colorado High- resolution Echelle Stellar Spectrograph (CHESS), focusing on the hardware advancements and testing supporting the second flight of the payload ...
K. Hoadley +9 more
semanticscholar +1 more source
GCPU_OpticalFlow: A GPU accelerated Python software for strain measurement
SoftwareXThis paper introduces an open-source pixel-wise Digital Image Correlation tool written in Python and targeting graphics processing units (GPUs) with the help of Cupy and Rapids-cuCim libraries.
Ahmed Chabib +3 more
doaj +1 more source
Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions
Canadian Journal of Statistics, EarlyView.Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni +2 more
wiley +1 more source
EXES: The Echelon-cross-echelle Spectrograph for SOFIA
Journal of Astronomical Instrumentation, 2018 The Echelon-cross-echelle spectrograph (EXES) is a high spectral resolution, mid-infrared spectrograph designed for and operated on the Stratospheric Observatory for Infrared Astronomy (SOFIA).
M. Richter +5 more
semanticscholar +1 more source
EXTRACTING RADIAL VELOCITIES OF A- AND B-TYPE STARS FROM ECHELLE SPECTROGRAPH CALIBRATION SPECTRA [PDF]
, 2015 We present a technique to extract radial velocity (RV) measurements from echelle spectrograph observations of rapidly rotating stars ( V sin i ≳ 50 ?> km s−1).
J. Becker +3 more
semanticscholar +1 more source