1,720,957 research outputs found
Rapport II. 10 Étude de la qualité des eaux de ruissellements urbains. Calcul des dimensions d’un ouvrage de décantation
No full textDecisions for storm water treatment techniques require a prior correlation analysis between collected data and detailed observations on sewer network surveys, catchment indicators and usual management practices.
This paper provides conclusions from a study of five storm water discharges, that lead to a careful design of a retention basin for sedimentation purposes near the Marne River in the Seine Saint Denis County.Les solutions à retenir pour diminuer efficacement les charges polluantes rejetées au milieu naturel par les réseaux d'assainissement pluviaux sont très liées aux caractéristiques de cette forme de pollution elles-mêmes fonction des caractéristiques des bassins versants, de leur mode d'assainissement et des pratiques d'exploitation.
Cette communication fait part des conclusions de 1'étude menée par le Service Départemental d ' Assainissement de Seine Saint Denis sur les cinq principaux rejets pluviaux en Marne, de la conception et du calcul des dimensions des bassins de rétention décantation.Renard Daniel, Paitry Alain. Rapport II. 10 Étude de la qualité des eaux de ruissellements urbains. Calcul des dimensions d’un ouvrage de décantation. In: L'impact des activités humaines sur les eaux continentales. Dix-neuvièmes journées de l'hydraulique - Question I, II, III, IV, V et Compte rendu des séances. Tome 2, 1986
Rapport II.1 Caractérisation de la pollution des eaux de ruissellement par temps de pluie
No full textCaractérisation of urban run off pollution during wet weather. Pollution due to running waters in urban areas is a complex phenomenon because of multiplicity of parameters existing in the characterization of it (properties of rain, river basin, etc.).
Further to the first explanation about 8 french river basins measurement results, we can say that :
— the most significant parameters are rain maximal intensity regarding time concentration and dry weather period (for the concentrations)
— the land use different possible types don't seam to major influence
Load values / water poofd has have been calculated.La pollution des eaux pluviales en zone urbaine est un phénomène complexe du fait de la multiplicité des paramètres intervenant dans la caractérisation de celui-ci (caractéristiques de la pluie, du bassin étudié, du réseau, etc.
À la suite d'une première interprétation effectuée sur les résultats de mesures de 8 bassins français, il ressort que :
— les paramètres les plus explicatifs sont l'intensité maximale de la pluie sur le temps de concentration et la durée de temps sec (pour ces concentrations)
— le type d'occupation des sols ne semble pas avoir d'influence majeure.
Des valeurs de charges par hectare imperméabilisé ont été calculées.Deutsch Jean-Claude, Paitry Alain, Ranchet Jean, Jarry B., Philippe J. P., Vicq André. Rapport II.1 Caractérisation de la pollution des eaux de ruissellement par temps de pluie. In: L'assainissement de demain. L'hydraulique des eaux pluviales et usées. Compte-rendu des XVIIes journées de l'hydraulique. Nantes,14-16 septembre 1982. Tome 1, 1982
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
Rapport I.5 La mesure des débits dans les collecteurs pluviaux -Les développements nouveaux
No full textThe measurement of flow in main rainwater sewers : new developments. Conventional methods have made it possible to calculate flow rates for many years past, but they are limited by phisical, hydraulic, and/or financial constraints. New procedures for measuring flow rates have recently been developed to overcome these constraints. Four methods are described here :
-calibration of rainwater headers using chemical tracer,
-measurement of flow by the method of gradient pressure,
-measurement of flow by compound outfall,
-calculation of flow rates by simultaneous measurements using ultrasonic detectors and level detectors.Des méthodes classiques permettent le calcul des débits depuis de nombreuses années mais elles sont limitées par des contraintes physiques, hydrauliques et/ou financières. Des procédés nouveaux de mesures de débit ont été développés récemment pour lever ces contraintes. Quatre méthodes sont présentement exposées :
-étalonnage des collecteurs "eaux pluviales" par traceur chimique,
-mesure des débits par la méthode de la pente motrice,
-mesure des débits par déversoir mixte,
-calcul des débits par mesures simultanées de vitesse par capteurs ultrasoniques et de hauteur.Paitry Alain, Renard Daniel. Rapport I.5 La mesure des débits dans les collecteurs pluviaux -Les développements nouveaux. In: L'assainissement de demain. L'hydraulique des eaux pluviales et usées. Compte-rendu des XVIIes journées de l'hydraulique. Nantes,14-16 septembre 1982. Tome 1, 1982
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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