426 research outputs found
Data on the I–V characteristics related to different PV modules at various solar irradiance and temperatures
No full textData include the open-circuit voltage, the short-circuit current and the output power of different photovoltaic solar modules obtained from a PV panel datasheet. The I–V curves as simulation results are provided at various levels of solar irradiance and temperature.
In case of using these data, please refer to following papers:
https://doi.org/10.1016/j.dib.2019.104527
https://doi.org/10.1016/j.solener.2018.02.017
https://doi.org/10.1016/j.solener.2019.07.00
Trophoniella radesiensis Chaibi & Antit & Bouhedi & Meca & Gillet & Azzouna & Martin 2019, n. sp.
No full textTrophoniella radesiensis n. sp. Chaibi and Gillet Figures 3–6 urn:lsid:zoobank.org:act: D7C85C70-87FF-4AF4-8599-A8462B3FB8B1 Material examined. Holotype: MNCN16.01 /18453, collected on 25 Nov 2015 in Radés Station, Gulf of Tunis (15°55′ N, 97°41′ W) by the first author. Paratypes: MNCN 16.01 /18454. 6 specimens, same data as for holotype; UCO T FLA 025.1specimen, same data as for holotype. Diagnosis. Body covered by sediments of different grain size (50–1000 µm of long axe) embedded on tunic, completely concealed except in posterior region. Tunic pale, dorsally smooth, ventrally rough, with large papillae, carrying sediment grains and particles. Body papillae arranged in two dorsal and four ventral rows. Branchial plate tongue-shaped. Unidentate anchylosed neurohooks from chaetiger 20. Description. Holotype with some chaetae broken, non-reproductive adult, unknown sex. 35 mm long, 4 mm wide, with 60 chaetigers; paratypes varying from 30–43 mm long and 1–4 mm wide for 43–74 chaetigers (Fig. 3 A– E). Anterior body sub-cylindrical in cross-section, tapering towards pygidium. Tunic transparent, dorsally smooth, ventrally rough with large papillae, carrying sediment grains and particles with long axes ranging from 50 to 1000 µm, totally embedded in tunic, completely concealing it dorsally and ventrally, absent in posterior region. Pale brown, slightly reddish anteriorly. Cephalic cage 12 mm long, with chaetae ca. 1.5 times longer than body width, formed by chaetigers 1–5; chaetiger 2 dorsolateral, chaetiger 3–4 lateral. Chaetal transition from cephalic cage to body chaetae gradual (Fig. 3A, 3 C–E). Body papillae similar in colour to body wall, mostly eroded, arising in two dorsal and four ventral longitudinal rows from first chaetiger to posterior end, better preserved anterior-most body region (Fig. 3A, 3 C–E). Parapodia well developed. Noto and neuropodia have four prechaetal papillae and five postchaetal papillae (Fig. 3C). Especially long papillae absent from anterior chaetigers. Gonopodial papillae not seen. Chaetiger 1 with about six notochaetae and eight neurochaetae; anterior dorsal margin with dorsal papillae, arising as a multifid cephalic veil (Fig. 4A). Chaetiger 5 widening posteriorly. Cephalic hood not exposed. Caruncle short and triangular (Fig. 4C, 4D). Branchiae cirriform, arising from tongue-shaped branchial plate, arranged in two lateral lobes (Fig. 4A, 4D), thin, long (0.5–3mm), whitish once preserved in ethanol, with ca. 60 filaments. Palp, long, corrugated, pale, as long as largest branchiae, 6 mm long (Fig. 4B, 4C). Prostomium lowcone, with two large and two small black eyes (Fig. 3D, 3E). Lateral lip expanded; dorsal and ventral lips not well developed (Fig. 3D, 3E). Notochaetae all multiarticulated capillaries; articles progressively longer towards falcate tips; medial ones in short longitudinal series, 4–7 per bundle; some yellowish some dark brown; unidentate tips (Fig. 5 A–5D). Multiarticulated capillary neurochaeta from chaetiger 2 to 5, then short unidentate neurohooks from chaetiger 6 to 19 (Fig. 6A) and anchylosed hooks from chaetiger 20 to body end (Fig. 6B), darker than preceding ones, arranged in transverse series of 4–6 units per bundle, similarly wide along their length, subdistally not or slightly expanded, with short rings continued up to a subdistal, non-annulated hyaline region, hooked, tapering to roughly pointed, unidentate tips (Fig. 5A, 6B). Pygidium simple, with single anal cirrus. No intra-specific variability in morphological characters was observed, except for lacking sediment gains in some specimens. Distribution. Known only from the type locality, Radés Station (Gulf of Tunisia, Mediterranean Sea). Collected from both soft and rocky bottoms, from 3–4 m to 10 m depth. Etymology. The species name radesiensis refers to the type locality, Radés Station.Published as part of Chaibi, Marwa, Antit, Mouna, Bouhedi, Marwa, Meca, Miguel A., Gillet, Patrick, Azzouna, Atf & Martin, Daniel, 2019, A new species of Flabelligeridae (Annelida), Trophoniella radesiensis n. sp., from Tunisia, pp. 551-561 in Zootaxa 4571 (4) on pages 554-556, DOI: 10.11646/zootaxa.4571.4.7, http://zenodo.org/record/261426
Los verbos semeiar y parecer en la prosa alfonsí. Su comportamiento funcional y diferencias con ser y estar.
No full textEn el presente trabajo de fin de máster tratamos de estudiar los aspectos gramaticales de los verbos semeiar y parecer tanto a nivel léxico como a nivel funcional. Y como se enmarcan dentro del comportamiento de la relación atributiva, nos ha parecido oportuno contrastarlos con sus compañeros ser y estar, que, por otra parte, ya están bastante estudiados. Esto nos permitirá conocer mejor sus analogías y diferencias, y así poder definir con más precisión su funcionamiento dentro de la relación atributiva
Estudio, caracterización y modelado avanzado de los efectos térmicos y trampa en los Transistores MESFET y HEMT de Microondas
No full textRESUMEN: En este trabajo se presenta un nuevo modelo no lineal para transistores MESFET/HEMT basados en GaAs y GaN teniendo en cuenta los efectos térmicos y trampa que muestran estos dispositivos. El modelo permite reproducir el comportamiento del dispositivo, a un rango determinado de temperatura, en régimen estático (DC), régimen pulsado y régimen dinámico RF pequeña y gran señal. La ecuación de la fuente de corriente Ids toma como base cualquier modelo DC existente sin alterar su comportamiento en este régimen de funcionamiento. Los valores de sus parámetros se extraen a partir de las características I/V DC y pulsadas llevadas a cabo solamente en unos puntos determinados de polarización. También se presenta el estudio y la caracterización de dichos efectos lo que, de un lado, permite conocer la influencia de los mismos sobre el comportamiento del transistor y, de otro lado, obtener toda la información útil y necesaria para su modelado.ABSTRACT: In this thesis, a new nonlinear model of GaAs and GaN MESFET/HEMT transistors including thermal and traps effects shown in this kind of devices has been presented. The model, along with an electric equivalent circuit and an especial extraction process strategy, can accurately predict the DC, pulsed as well as the small and large signal behaviour of the device over a large range of ambient temperature. To model drain to source current source Ids we start with a known DC equation but the approach can be applied to any other existing classical model. The model parameters values are extracted from the DC and pulsed I/V characteristics carried out just at a few bias points. A study and characterization of thermal and traps effects is presented too. This allows us to know the influence of these effects on the transistor behaviour, and to obtain all the necessary information for their modelling
For you, gamers. Sexism in video games: 21st Century censorship
No full textEl machismo está integrado en la sociedad desde hace siglos y, con la aparición de Internet y
de los videojuegos online, el acoso sexista se desarrolla en cuestión de segundos. El
porcentaje de jugadoras, desarrolladoras, programadoras, analistas y streamers se ha
incrementado en los últimos años y actualmente el 40% de las mujeres forma parte de este
sector, según el Informe CIMA 2022, publicado por ArsGames y la Asociación de Mujeres
Cineastas y de Medios Audiovisuales.
El mundo de los videojuegos sigue siendo un lugar masculinizado y el género supone una
barrera para las mujeres que se quieren dedicar profesionalmente al gaming. El 59% de las
mujeres oculta su género para evitar el acoso y el 49% de las gamers han sido discriminadas
en un videojuego online (Informe CIMA, 2022).
Asimismo, todavía se recurre a la sexualización de los personajes femeninos para generar
ingresos y publicidad. Esta técnica perpetúa los estereotipos que los consumidores utilizan
para humillar a las víctimas. Las jugadoras reciben amenazas de muerte, vejaciones,
incitaciones a la violencia sexual y fotografías de genitales.
Los terapeutas alertan sobre las consecuencias psicológicas que sufren las mujeres al
enfrentarse a este tipo de agresiones verbales. Las gamers pueden desarrollar ansiedad,
depresión, problemas de autoestima y de confianza.
Este proyecto cuenta con una recopilación de varios testimonios, así como con la
intervención de una periodista especializada en videojuegos, una desarrolladora de
videojuegos, una entrenadora de e-sports y una psicóloga clínica. La perspectiva psicológica
aporta originalidad y profundidad, ya que los medios tratan este tema de forma superficial.
Los videojuegos online como el League Of Legends y el Valorant se han convertido en la
nueva censura del siglo XXI y en una nueva técnica de ciberbullying que afecta
concretamente a las mujeres.Sexism has been embedded in society for centuries and, with the emergence of the Internet
and online video games, sexist harassment develops in a matter of seconds. The percentage of
female gamers, developers, programmers, analysts and streamers has increased in recent
years and currently 40% of women are part of this sector, according to the CIMA 2022
report, published by ArsGames and Asociación de Mujeres Cineastas y de Medios
Audiovisuales.
The world of video games continues to be a masculinized place and gender is a barrier for
women who want to dedicate themselves professionally to gaming. 59% of women hide their
gender to avoid harassment and 49% of female gamers have been discriminated against in an
online video game (CIMA Report, 2022).
In addition, the sexualization of female characters is still used to generate revenue and
publicity. This technique perpetuates the stereotypes that consumers use to humiliate the
victims. Female gamers receive death threats, harassment, incitement to sexual violence and
pictures of genitalia.
Therapists warn about the psychological consequences that women suffer when facing this
type of verbal aggression. Gamers can develop anxiety, depression, low self-esteem and
confidence problems.
This project includes a compilation of various testimonials, as well as the intervention of a
journalist specialized in video games, a video game developer, an e-sports coach and a
clinical psychologist. The psychological perspective brings originality and depth, since the
media treats this topic superficially.
Online video games such as League of Legends and Valorant have become the new
censorship of the 21st century and a new cyberbullying technique that specifically affects
women
Advanced larged signal modelling of MESFET/HEMT transistors
No full textMáster en Tecnologías de la Información y Comunicaciones en Redes Móviles (TICRM
Manual therapies for cervicogenic headache: a systematic review
No full textThis paper systematically reviewed randomized clinical trials (RCT) assessing the efficacy of manual therapies for cervicogenic headache (CEH). A total of seven RCTs were identified, i.e. one study applied physiotherapy ± temporomadibular mobilization techniques and six studies applied cervical spinal manipulative therapy (SMT). The RCTs suggest that physiotherapy and SMT might be an effective treatment in the management of CEH, but the results are difficult to evaluate, since only one study included a control group that did not receive treatment. Furthermore, the RCTs mostly included participant with infrequent CEH. Future challenges regarding CEH are substantial both from a diagnostic and management point of view.
This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited
Data on the I–V characteristics related to different PV modules at various solar irradiance and temperatures
No full textData include the open-circuit voltage, the short-circuit current and the output power of different photovoltaic solar modules obtained from a PV panel datasheet. The I–V curves as simulation results are provided at various levels of solar irradiance and temperature.
In case of using these data, please refer to following papers:
https://doi.org/10.1016/j.dib.2019.104527
https://doi.org/10.1016/j.solener.2018.02.017
https://doi.org/10.1016/j.solener.2019.07.00
Low noise amplication of an optically carried microwave signal: application to atom interferometry
No full textIn this paper, we report a new scheme to amplify a microwave signal carried on a laser light at =852nm. The amplification is done via a semiconductor tapered amplifier and this scheme is used to drive stimulated Raman transitions in an atom interferometer. Sideband generation in the amplifier, due to self-phase and amplitude modulation, is investigated and characterized. We also demonstrate that the amplifier does not induce any significant phase-noise on the beating signal. Finally, the degradation of the performances of the interferometer due to the amplification process is shown to be negligible
Control of Discrete 2-D Takagi–Sugeno Systems via a Sum-of-Squares Approach
No full textProducción CientíficaThe stabilization of Takagi–Sugeno systems is solved here for the two-dimensional polynomial discrete case, by using the sum-of-squares approach. First, we provide a stabilization condition formulated in terms of polynomial multiple Lyapunov functions. Then, a non-quadratic stabilization condition is developed by applying relaxed stabilization technique. Both conditions can be used for design, by solving them using numerical tools such as SOSTOOLS. A numerical example illustrates the effectiveness of the results.Junta de Castilla y León y EU-FEDER (CLU 2017-09) y (UIC 233)Secretaría de Estado de Investigación, Desarrollo e Innovación (Grant. DPI2014-54530-R
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