1,720,953 research outputs found
Herramienta para el mantenimiento del amortiguador del tren de aterrizaje de helicópteros NH90
No full textSe plantea crear una herramienta, para una tarea especifica de mantenimiento, que se realiza en las revisiones periódicas de diversas aeronaves. En este caso será una tarea descrita en el mantenimiento del helicóptero militar de transporte táctico HT-29 (denominación comercial NH90, fabricado por Airbus Helicopters). La tarea de mantenimiento consiste en la comprobación del estado de los amortiguadores del tren de aterrizaje. Dicha tarea consiste en medir la temperatura del eje del amortiguador, el desplazamiento (longitud) del cilindro, y la presión del gas que contiene. Se realizará en cada uno de los tres ejes de los que dispone esta aeronave. Como proyecto se propone crear un dispositivo, que debido a su morfología se pueda colocar (mediante una abrazadera o similar) en el eje del amortiguador, de forma que desde esa posición, pueda medir la temperatura del cilindro mediante infrarrojos, el desplazamiento del cilindro mediante una sonda ultrasónica, y por último envíe estos datos de forma inalámbrica a otro terminal, donde se podrán consultar las lecturas, además de valorar si son o no correctos. Este último dispositivo, nos indicará el rango de presión valido, para que sea comprobado mediante elementos externos. Por último almacenará las lecturas en una tarjeta SD.It is proposed to create a tool for a specific maintenance task, which is carried out in the periodic inspection of several aircrafts. The task is described in the maintenance of the HT-29 military tactical transport helicopter (trade name NH90, manufactured by Airbus Helicopters). The maintenance task consists of checking the condition of the landing gear shock absorbers. It is necessary to measure the temperature of the shock absorber shaft, the displacement (length) of the cylinder, and the pressure of the gas it contains. It will be carried out on each of the three axes available in this aircraft. As a project, it is proposed to create a device, which due to its morphology can be placed (by means of a clamp or similar) on the axis of the shock absorber, so that from that position, it can measure the temperature of the cylinder with infrared sensor, the displacement of the cylinder with an ultrasonic probe, and finally send this data wirelessly to another terminal, where the readings can be consulted, in addition to assessing whether or not they are correct. This last device will indicate the valid pressure range to be checked by external elements. Finally, it will store the readings on an SD card.Es planteja crear una eina, per a una tasca especifica de manteniment, que es realitza en les revisions periòdiques de diverses aeronaus. En aquest cas será una tasca descrita en el manteniment de l'helicòpter militar de transport tàctic HT-29 (denominació comercial NH90, fabricat per Airbus Helicopters). La tasca de manteniment consisteix en la comprovació de l'estat dels amortidors de el tren d'aterratge. Aquesta tasca consisteix a mesurar la temperatura de l'eix de l'amortidor, el desplaçament (longitud) de l'cilindre, i la pressió de el gas que conté. Es realitzarà en cada un dels tres eixos de què disposa aquesta aeronau. Com a projecte es proposa crear un dispositiu, que a causa de la seva morfologia es pugui col·locar (mitjançant una abraçadora o similar) en l'eix de l'amortidor, de manera que des d'aquesta posició, pugui mesurar la temperatura de l'cilindre mitjançant infrarojos, el desplaçament de l'cilindre mitjançant una sonda ultrasònica, i finalment envieu aquestes dades sense fils a un altre terminal, on es podran consultar les lectures, a més de valorar si són o no correctes. Aquest últim dispositiu, ens indicarà el rang de pressió valgut, perquè sigui comprovat mitjançant elements externs. Finalment emmagatzemarà les lectures en una targeta SD
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
- …
