117,562 research outputs found
J.-L. Mottier. - Guide pratique des étrangers en France.
No full textJ.-L. Mottier. - Guide pratique des étrangers en France.. In: Revue internationale de droit comparé. Vol. 2 N°2, Avril-juin 1950. p. 390
J.-L. Mottier. - Guide pratique des étrangers en France.
No full textJ.-L. Mottier. - Guide pratique des étrangers en France.. In: Revue internationale de droit comparé. Vol. 2 N°2, Avril-juin 1950. p. 390
Vibration modes and acoustic noise in a four-phase switched reluctance motor
No full textAcoustic noise in the switched reluctance motor (SRM) is caused primarily by the deformation of the stator lamination stack. Acoustic noise is most severe when the periodic excitation of the SRM phases excites a natural vibration mode of the stack. The natural vibration modes and frequencies of a four-phase, 8/6 SRM are examined. Structural finite element analysis is used to compute the natural modes and frequencies. Impulse tests on the stator stack verify the calculations and show which modes are excited. Heuristic arguments are developed to predict the operating conditions that will excite the natural modes. Measurement of vibration while the machine is under load shows which operating conditions excite the natural modes and verifies the predictions. An approximate formula is derived to predict the frequency of the fundamental vibration mode in terms of lamination dimensions and material properties. The formula is validated by comparison with finite element calculations for several laminations, and hence is shown to be useful in design trade-off studies
MOTTIER LOPEZ Lucie & FIGARI Gérard (coord.). Modélisations de l’évaluation en éducation. Questionnements épistémologiques
No full textL’ouvrage coordonné par Lucie Mottier Lopez et Gérard Figari est consacré à l’épistémologie de l’évaluation en éducation. La thématique de l’ouvrage est particulièrement pertinente si l’on considère que la profusion des pratiques évaluatives dans le champ de l’éducation et de la formation nécessite une distance réflexive et, en particulier, une réflexion épistémologique. Dans l’introduction, L. Mottier Lopez interroge la possibilité d’une épistémè de l’évaluation qui permettrait de dépasser l..
MOTTIER LOPEZ Lucie & FIGARI Gérard (coord.). Modélisations de l’évaluation en éducation. Questionnements épistémologiques
No full textL’ouvrage coordonné par Lucie Mottier Lopez et Gérard Figari est consacré à l’épistémologie de l’évaluation en éducation. La thématique de l’ouvrage est particulièrement pertinente si l’on considère que la profusion des pratiques évaluatives dans le champ de l’éducation et de la formation nécessite une distance réflexive et, en particulier, une réflexion épistémologique. Dans l’introduction, L. Mottier Lopez interroge la possibilité d’une épistémè de l’évaluation qui permettrait de dépasser l..
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Square Dancing with the Stars to Enhance Dynamic Hirschman Linkages?
No full textIn this Presidential Address, the author takes the reader on a reconnaissance of his life and time as a regional scientist. He points out scenery he found scintillating along the way, hoping that some may pick up the banner and chew on a few of the ideas for a while. He suggests a revisit to Albert O. Hirschman’s notion of key sectors and more empirical analysis related to Marcus Berliant’s and Masahisa Fujita’s notion of knowledge creation and transfer.Presidential Address, San Antonio, Texas, March 29, 2014 (53rd Meetings of the Southern Regional Science Association
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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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