1,721,040 research outputs found
Firmware update of the CTP7 card to achieve a 5 Gbps optical communication for the HCAL calorimeter at CMS project
Full text linkAn example of decoder is presented on this article, to complement the CTP7 card
firmware used for processing data at the calorimeter HCAL for CMS CERN experiment.
The decoder proposed was designed to collect the data from the receiver side of the card
and select it according to the specifications document managed by the HB subdetector
inside HCAL...Un ejemplo de decodificador es presentado en este art´Iculo como complemento del firmware
para la tarjeta CTP7 usada para el procesamiento de datos en el calorimetro HCAL en el
experimento CMS CERN El decodificador propuesto fue dise˜nado para recolectar datos
desde el parte receptora de la tarjeta y seleccionarlos de acuerdo a las especificaciones
manejadas en los documentos del subdetector HB, dentro del HCAL..
Detection of non-analytic non-linearities and intermodulation in MOS based passive mixers
Full text linkThis project is intended to characterize the linearity of a passive mixer using cold MOS devices. The
performances of microwave circuits in terms of linearity are not always accurately esƟmated in currents
microwave CAD soŌwares...El objeƟvo de este proyecto es caracterizar la linealidad de un mezclador pasivo que uƟliza Mosfet sin polarización. Los rendimientos de los circuitos de microondas en términos de linealidad
no siempre son precisos en programas de simulacion microondas CAD..
Electronics system engineering Flat-Sat for IGOSat
Full text linkThe present document introduces the final internship report of Master 2 ESECA -
ENSEEIHT student Juan Andres VALVERDE JARA fulfilled on a 6 months internship at the IGOSat
Project in the Electronics Team as Electronics System Engineering (Flat-Sat) of Paris Diderot
University and the city of Paris between the 8th Mars 2019 and the 30th September 2019...El presente documento presenta el informe de pasantía final de mí, Juan Andrés
VALVERDE JARA, en el Máster 2 ESECA del ENSEEIHT, yo cumplí con una pasantía de 6 meses
en el Proyecto IGOSat en el Equipo de Electrónica Espacial como Ingeniero de Sistema
Electrónico (Flat-Sat) y de prueba electrónico en el laboratorio (APC) Laboratoire
Astroparticules & Cosmologie de la Universidad Paris Diderot en la ciudad de París en Francia
entre el 8 de marzo de 2019 y el 30 de septiembre de 2019..
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Interférométrie par réinjection optique dans une diode laser - Applications pour le vivant et le développement durable
No full textNational audienceOptical Feedback based sensors are interferometric systems with great compactness self-alignments properties in which the laser source also plays the role of the interferometer and the detector. In this presentation, I expose the numerous results that were obtained these last years, in particular considering applications related to biology or sustainable development.The presented work describes in a first part the modeling of the laser physics under optical feedback conditions that have allowed to improve the sensor responsivity, to better interpret the sensor signal in case of multiple back-scattering sources or to better understand the underlying fringe frequency bandwidth limitation that are specific to such a sensor.An important highlight is made for the presentation of works related to the measurement and characterization of fluid flows, specifically in the context of micro-scale flows (microfluidics), with multiple phase fluids and for the detection of single particle flowing.In a related topic, the contribution to the development of an optical feedback based anemometer in collaboration with the company Epsiline is presented.The latest developments of the optical feedback sensors for imaging in 2D or 3D the propagation of pressure waves are detailed.Eventually, a large part is dedicated to discussion around close future research topics emerging from the presented results and that concern the problematic linked to the laser physics - evolution towards more complex laser sources or with exotic properties of interest for the sensor context - as well as application domains such as flow cytometry, help in the diagnostic of the skin cancers, study of choc waves, etc...Les capteurs par réinjection optique sont des systèmes interférométriques compacts et auto-alignés dans lesquels la source laser joue le rôle de l’interféromètre et du détecteur. Dans cette présentation, j’expose les différents résultats que nous avons obtenu ces dernières années en particulier sur des sujets ayant trait à la biologie ou à l’environnement.Le travail présenté aborde dans une première partie la modélisation de la physique du laser sous réinjection qui ont permis d’améliorer la sensibilité du capteur, d’interpréter le signal capteur dans le cas de réinjection issue de multiples cibles ou de comprendre les limitations en fréquence des franges interférométriques induite par ce système capteur.Une place importante est donnée à la présentation des travaux effectués dans un contexte de mesure et de caractérisation d’écoulement, en particulier à micro-échelle (écoulement microfluidiques), avec des fluides multiphasiques et pour la détection de particules uniques en écoulement.Sur un sujet connexe, les travaux menés en collaboration avec la société Epsiline pour la réalisation d’un anémomètre par réinjection optique sont également présentés.Les derniers développements des capteurs par réinjection optique pour l’imagerie en 2 ou 3 dimensions de la propagation des ondes de pression sont détaillés.Enfin une large partie est consacrée à la discussion de sujets de recherches futurs issus des résultats présentés et qui concerne autant les problématiques de la physique du laser : évolution vers des sources lasers plus complexes ou ayant des propriétés exotiques intéressantes dans le contexte capteur, que les domaines applicatifs : cytométrie de flux, aide au diagnostic des cancers de la peau, étude d’onde de choc
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