Search results for "Codes"

Conflicto entre los cabildos catedralicios y las inquisiciones ibéricas en la Edad Moderna

2021

Proyecto Quick Natura. Tecnologías móviles aplicadas a rutas botánicas urbanas

2017

[EN] The Quick Natura project aims to approach people of the city of Valencia to the green areas around them,in a fast and pleasant way. The initiative is based on the use of new technologies to connect the physicalwith the virtual world by placing QR codes (Quick Response code) on di erent plant species, located mainlyin gardens and parks to display information about each labelled species. Any user can scan the QR codelocated in labelled plants by using a smartphone or other mobile devices, enabling almost immediate accessto an information layer displayed in an enjoyable way, without using very technical language, facilitatinga quick understanding and assimilation by users. The method allo…

Filipa K.Dika romānu interpretācija feministiskā skatījumā ("Vai androīdi sapņo par elektriskām aitām?" un "Cilvēks augstajā pilī")

2020

Filips K. Diks ir slavens zinātniskās fantastikas rakstnieks. Zinātniskās fantastikas žanrs bieži tiek mērķēts uz vīriešu auditoriju. Šekojošā pētījuma mērķis ir dzimuma attēlojums romānā “Vai androīdi sapņo par elektriskām aitām?”. Pētījuma galvenā empīriskā metode ir teksta analīze. Galvenā analīzes forma ir feministiskā literatūras kritika, kas vērsta uz zinātnisko fantastiku. Tas ietver dzimuma izpēti kā analīzes veidu, galveno uzmanību pievēršot dzimumu lomām, tā attēlojumam un seksualitātei. Pētījuma rezultātā tika atklāts, ka sieviešu personāžiem bija mazāk daudzveidīgi stāsti, salīdzinot ar vīriešu varoņiem, un to personāži tika attēloti daudz empātiskāki nekā vīrieši, neatkarīgi no…

Kerr self-cleaning of pulsed beam in an ytterbium doped multimode fiber

2017

International audience; We experimentally demonstrate that Kerr spatial self-cleaning of a pulsed beam can be obtained in an amplifying multimode optical fiber. An input peak power of 500 W only was sufficient to produce a quasi-single-mode emission from the double-clad ytterbium doped multimode fiber (YMMF) with non-parabolic refractive index profile. We compare the self-cleaning behavior observed in the same fiber with loss and with gain. Laser gain introduces new opportunities to achieve spatial self-cleaning of light in multimode fibers at a relatively low power threshold.

Hyperfine Paschen-Back regime realized in Rb nanocell

2012

A simple and efficient scheme based on one-dimensional nanometric thin cell filled with Rb and strong permanent ring magnets allowed direct observation of hyperfine Paschen-Back regime on D1 line in 0.5 - 0.7 T magnetic field. Experimental results are perfectly consistent with the theory. In particular, with sigma+ laser excitation, the slopes of B-field dependence of frequency shift for all the 10 individual transitions of 85,87Rb are the same and equal to 18.6 MHz/mT. Possible applications for magnetometry with submicron spatial resolution and tunable atomic frequency references are discussed.

BaGaTel: an ontology driven database to ecodesign food products taking into account their nutritional and sensory qualities

2020

International audience

Presentations of constrained systems with unconstrained positions

2005

International audience; We give a polynomial-time construction of the set of sequences that satisfy a finite-memory constraint defined by a finite list of forbidden blocks, with a specified set of bit positions unconstrained. Such a construction can be used to build modulation/error-correction codes (ECC codes) like the ones defined by the Immink-Wijngaarden scheme in which certain bit positions are reserved for ECC parity. We give a lineartime construction of a finite-state presentation of a constrained system defined by a periodic list of forbidden blocks. These systems, called periodic-finite-type systems, were introduced by Moision and Siegel. Finally, we present a linear-time algorithm for con…

Near-field observation of subwavelength confinement of photoluminescence by a photonic crystal microcavity

2006

We present a direct, room-temperature near-field optical study of light confinement by a subwavelength defect microcavity in a photonic crystal slab containing quantum-well sources. The observations are compared with three-dimensional finite-difference time-domain calculations, and excellent agreement is found. Moreover, we use a subwavelength cavity to study the influence of a near-field probe on the imaging of localized optical modes. © 2006 Optical Society of America.

Analysis of the Bloch mode spectra of surface polaritonic crystals in the weak and strong coupling regimes: grating-enhanced transmission at oblique …

2004

The Bloch mode spectrum of surface plasmon polaritons (SPPs) on a finite thickness metal film has been analyzed in the regimes of weak and strong coupling between SPP modes on the opposite film interfaces. The SPP mode dispersion and associated field distributions have been studied. The results have been applied to the description of the light transmission through thick and thin periodically structured metal films at oblique incidence. In contrast to normal incidence, all SPP Bloch modes on a grating structure participate in the resonant photon tunnelling leading to the transmission enhancement. However, at the angle of incidence corresponding to the crossing of different symmetry film SPP …

Optical properties of chlorine-and oxygen-related defects in SiO$_2$ glass and optical fibers

2018

International audience; Photoinduced processes involving chlorine molecules in synthetic silica were studied. Interstitial Cl$_2$ in SiO$_2$ are prevented from VIS/UV photolysis by cage effect. However, they react with oxygen interstitials yielding photosensitive ClClO molecules absorbing at 264nm.