1,720,956 research outputs found
Sistema de localización automática
No full textRutinas de software desarrolladas en lenguaje assembler Microchip MPASM (tm) para el PIC 16F84. Las rutinas permiten conectar el dispositivo PIC, a un GPS y un teléfono celular; las coordenadas geográficas de la ubicación del dispositivo, pueden obtenerse mediante mensajes tipo SMS
Sistema de información geográfica Independiente
No full textObjetos vectoriales de cualquier naturaleza (entidades geométricas ASCII) son exportados como primitivas gráficas a una base de datos. Estas entidades pueden ser consultadas desde la Web, y ser arregladas cartográficamente para ser exportadas a un formato raster.
Los resultado de la consulta original de las primitivas gráficas georeferenciadas en la base de datos son susceptible a ser empotrados en una página Web (on flight). La cadena de eventos posibilita la construcción, alojamiento, consulta, y visualización tridimensional de cualquier espacio geográfico; utilizando únicamente recursos de software libre.
Como ejemplo: mediante el uso de una rutina en PERL objetos vectoriales MapInfo son exportados como primitivas gráficas de PostgreSQl. Estas entidades en la base de datos pueden ser espacialmente consultadas desde una página Web, los resultados obtenidos son visualizados mediante el auxilio de GMT (Generic Mapping Tools) cuyas salidas en PostScript son trasformadas a .tiff o .jpg mediante ImagicMagic. Finalmente estas imágenes son visualizadas en una página Web como resultado de la consulta original desde Perl vía cgi-bin
VISOR SISMÓMETRO
No full textEste dataset contiene los archivos necesarios para replicar el programa de Visualización de Datos elaborado en lenguaje Processing. Pero se proporciona la información necesaria del proyecto global. Que consiste de un sistema de digitalización, almacenamiento y visualización de datos proveniente de un geófono tipo SM-6. Se estudió e implementó el diseño del preamplificador presentado por Havskov & Alguacil (2006), y se agregó un sistema de acondicionamiento y filtrado de los datos compuestos por celdas tipo Sallen Key (un filtro pasa bajo y un pasa altos). La digitalización de los datos se realizó mediante una tarjeta de desarrollo PICDEMZ de compañía Microchip; que tiene incorporado un PIC 18F25K20. Para desarrollar el software referente al PIC, se utilizó el IDE MPLAB (MPLABX) de Microchip y el compilador de lenguaje C de Custom Computer Services, Inc. Para almacenar y graficar los datos en un PC vía el puerto serial, se utilizó el lenguaje Processing (The Processing Fundation); implementando un conjunto de 8 script. El prototipo fue iconstruido para participar en la Feria de Ciencias Regional Oriente 2015, convocada en Cumaná (Edo. Sucre., Venezuela). La base teórica del sistema datalogger, está documentada y explicada en el artículo anexo al proyecto: El Sensor Sísmico Geófono; publicada en el blog del autor: https://ciencia.digital.info.ve
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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