1,721,187 research outputs found
58. Gentili (B.), Pasoli (E.), Simonetti (M.). Storia della letteratura latina,
No full textFranchet d'Espèrey Sylvie. 58. Gentili (B.), Pasoli (E.), Simonetti (M.). Storia della letteratura latina,. In: Revue des Études Grecques, tome 94, fascicule 445-446, Janvier-juin 1981. pp. 284-285
Gentili (Β.), Pasoli (E) e Simonetti (M.). Storia della letteratura latina
No full textLiénard Edmond. Gentili (Β.), Pasoli (E) e Simonetti (M.). Storia della letteratura latina. In: Revue belge de philologie et d'histoire, tome 57, fasc. 1, 1979. Antiquité - Oudheid. pp. 164-165
58. Gentili (B.), Pasoli (E.), Simonetti (M.). Storia della letteratura latina,
No full textFranchet d'Espèrey Sylvie. 58. Gentili (B.), Pasoli (E.), Simonetti (M.). Storia della letteratura latina,. In: Revue des Études Grecques, tome 94, fascicule 445-446, Janvier-juin 1981. pp. 284-285
Numerical and experimental study of an airing device for controlled natural ventilation of a building
No full textThe rationale of an advanced natural ventilation system should be to control airflows and air temperature during winter, and to avoid unnecessary energy losses and local draught, while maintaining an adequate ventilation rate. On the other hand, natural driving forces (pressure head due to buoyancy and wind) vary significantly during the heating season. A prototype of a new device for controlled natural ventilation of buildings has been designed with the aim of avoiding cold draughts and excessive energy consumption during the coldest periods as well as ensuring the right amount of airflow even during mid-seasons. The device has been numerically studied by means of a commercial Computational Fluid Dynamics (CFD) code and has subsequently been built and experimentally tested. The CFD calculations were validated and used to assess the practical possibility of controlling the very low airflow rates typical of natural ventilation. Results will be used to investigate the comfort conditions in a room equipped with such a device during a normal heating season
CFD optimization of large water storages for efficient cooling of high power intermittent thermal loads
Full text linkThe design optimization of water basins for the refrigeration of intermittent high-power heat sources, by mean of CFD simulations, is presented. A case study of an experimental facility is considered, that foreseen two large water basins as thermal storage, with volume of 315m3 and 500m3 respectively, and an installed nominal cooling power around 25MW for the cooling of an intermittent load, with peak power of around 65MW. A strong horizontal stratification has been looked after in the preliminary design, which include a labyrinth of walls and weirs, and water inlet/outlet plugs positioned at the opposite side of the basins. The intensity and the role of this stratification have been explored using a CFD software, simulating both winter and summer sceneries. Some variants to the original design have been studied, in order to optimize the stratification of water temperatures. Itis shown that a large water storage with an optimal design could help very much in reducing cooling power demand in case of intermittent thermal load
New second-order algorithms for recurrent neural networks based on conjugate gradient
No full textWe derive two second-order algorithms, based on the conjugate gradient method, for online training of recurrent neural networks. These algorithms use two different techniques to extract second-order information on the Hessian matrix without calculating or storing it and without making numerical approximations. Several simulation results for nonlinear system identification tests by locally recurrent neural networks are reported for both the off-line and online case
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
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