Results 101 to 110 of about 13,299 (185)

Los estudios catalanes en la Universidad de Montreal [PDF]

open access: yes, 2015
L’any 2007 es van introduir els estudis catalans a la Universitat de Mont-real (UdeM): quatre cursos de llengua i un de cultura, que configuraven un mòdul en llengua i cultura catalanes.
Viladrich i Castellanas, Èric
core  

Pressure Shifts in High-Precision Hydrogen Spectroscopy: II. Impact Approximation and Monte-Carlo Simulations

open access: yes, 2019
We investigate collisional shifts of spectral lines involving excited hydrogenic states, where van der Waals coefficients have recently been shown to have large numerical values when expressed in atomic units.
Adhikari, C. M.   +3 more
core   +1 more source

A frequency-stabilized light source at 399 nm using an Yb hollow-cathode lamp

open access: yes, 2018
We demonstrate a diode laser system operating at 399 nm that is stabilized to the ${\rm 6s^{2}\ {^1}S_{0} - 6s6p\ {^1}P_{1}}$ electric dipole transition in ytterbium (Yb) atoms in a hollow-cathode lamp.
Akamatsu, Daisuke   +7 more
core   +1 more source

Phased-Locked Two-Color Single Soliton Microcombs in Dispersion-Engineered Si3N4 Resonators

open access: yes, 2018
We propose and theoretically investigate a dispersion-engineered Si3N4 microring resonator, based on a cross-section containing a partially-etched trench, that supports phase-locked, two-color soliton microcomb states.
Kim, Sangsik   +4 more
core   +1 more source

Surgimiento y desarrollo del método Delphi: una perspectiva cienciométrica

open access: yesBiblios, 2018
El presente trabajo tiene como objetivo caracterizar el desarrollo del método Delphi, a partir de indicadores cienciométricos relacionados con publicaciones de elevados índices de calidad.
Miguel Cruz Ramírez   +1 more
doaj   +1 more source

XUV Frequency Combs via Femtosecond Enhancement Cavities

open access: yes, 2012
We review the current state of tabletop extreme ultraviolet (XUV) sources based on high harmonic generation (HHG) in femtosecond enhancement cavities (fsEC).
Arissian L   +15 more
core   +1 more source

Low-Cost Rotating Experimentation in Compressor Aerodynamics Using Rapid Prototyping

open access: yesInternational Journal of Rotating Machinery, 2016
With the rapid evolution of additive manufacturing, 3D printed parts are no longer limited to display purposes but can also be used in structural applications.
Mathias Michaud   +2 more
doaj   +1 more source

Sobre la iniciativa de reforma judicial en México: una apología al formalismo jurídico y un olvido de la formación (bildung)

open access: yesBiolex
Este estudio ofrece un análisis crítico y hermenéutico de algunos puntos sustanciales que se proponen en la última reforma al poder judicial federal del Estado Mexicano, cuyo principal interés se centra en proponer un nuevo modelo de selección de ...
Carlos Manuel López Hernández
doaj   +1 more source

Single-shot carrier-envelope-phase measurement in ambient air

open access: yes, 2019
The ability to measure and control the carrier envelope phase (CEP) of few-cycle laser pulses is of paramount importance for both frequency metrology and attosecond science.
Bergues, B.   +11 more
core   +2 more sources

POS-049 SUCCESSFUL MULTI ORGAN SUPPORT THERAPY (MOST) IN COVID-19 PNEUMONIA: A CASE REPORT

open access: yesKidney International Reports, 2021
L. Rizo Topete MD   +3 more
doaj   +1 more source

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