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Rapport I.7 Courant résiduel. Analyse des mesures courantométriques
No full textResidual current. Analysis of current records.
The signal of the observed current along the cost of the Texel island is examined by means of several low-pass and band-pass digital filters to remove tidal period part and to obtain the residual current. Two of them are here presented : Filter of moving average 24 houres and the GODIN FILTER. The other filters are presented in the complete work by the same author. The GODIN FILTER moves the tidal period but causes some attenuation of amplitude with a period of 2-3 days. However this is an important part of the original signal caused indeed through wind effects.
The relation between the residual current field and the wind field by means of the model FRANOM of cross spectral analysis is not narrow in all situations.Le signal d'enregistrement du courant mesuré le long de la cote de l'île de Texel a été examiné au moyen de plusieurs filtres passe-bas et passe-bande afin d'en éliminer les ondes de la marée et d'obtenir un courant résiduel. On se limite à présenter ici deux d'entre-eux : filtre à moyenne mobile sur 24 heures et le filtre de Godin. Quant aux autres on se référera au rapport complet du même auteur. Le filtre de Godin satisfait à la condition d'éliminer les ondes de la marée mais atténue les composantes de période de 2 à 3 jours. Ces composantes, étant supposées une conséquence des effets du vent, constituent justement une partie importante du signal originel.
La relation entre le champ des courants résiduels et celui des vents, obtenue au moyen du model FRANOM d'analyse interspectrale n'est pas étroite dans toutes les situations.Elorche Moestafa. Rapport I.7 Courant résiduel. Analyse des mesures courantométriques. In: L'hydraulique et la maitrise du littoral. Problèmes côtiers posés par le mouvement des sédiments et la pollution. Dix-huitièmes journées de l'hydraulique. Marseille, 11-13 septembre 1984. Tome 1, 1984
Edition complète du rapport I-7. Courant résiduel. Analyse des mesures courantométriques
No full textResidual current. Analysis of current records. The signal of the observed current on the Eastern of Scheldt and along the coast of Texel island is examined bij means of several low-pass digital filters to remove tidal period part as to obtain the residual current. The Godin filter moves the tidal period but causes same attenuation of amplitude with a period about 2 days.
However this is-an important part of the original signal caused indeed through wind effects. The Butterworth filter conserves this amplitude.
The coherency between the résiduel current field and the wind field by means of the model FRANOM of cross spectral analysis is about 60-70 %.Le signal d’enregistrement du courant mesuré dans 1'Escaut Oriental et celui le long de la cote de l'île de Texel ont été examiné au moyen de plusieurs de plusieurs filtres passe-bas afin d'éliminer les ondes de la marée pour obtenir le courant résiduel. Le filtre de Godin satisfait à la condition d'éliminer les ondes principales mais atténue le composantes aux voisinages d'une période de 2 jours étant supposées une conséquence des effets du vent, constituent justement une partie importante du signal originel. Le filtre de Butterworth s'avère repondre aux conditions de conserver ces composantes.
La relation entre le champs des courants résiduels et celui des vents, obtenue au moyen du model FRANOM d'analyse interspectrale permet d'expliquer 60 à 70 % de la vitesse résiduelle par les vents.Elorche Moestafa. Edition complète du rapport I-7. Courant résiduel. Analyse des mesures courantométriques. In: L'hydraulique et la maitrise du littoral. Problèmes côtiers posés par le mouvement des sédiments et la pollution. Dix-huitièmes journées de l'hydraulique. Marseille, 11-13 septembre 1984. Tome 6, 1984
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
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