1,721,346 research outputs found
Intramurale behandeling in de forensische psychiatrie: de Dr. Henri van der Hoeven Kliniek
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Dynamic modeling and validation of an industrial adipic acid plant
No full textAn industrial crystallization process is a complex process consisting of a lot of physical phenomena. Temperature, stirrer speed and other process inputs determine the rate of physical phenomena like agglomeration and growth. This study aims to develop a dynamic model structure that describes the physical phenomena in the crystallization process. The population balance equation is the basis of the model structure. Simple kinetic relations and the concentration balance are coupled to the population balance. The high resolution finite volume scheme is applied as the numerical solution method to solve the population balance equation. The dynamic model is validated with experimental results from an adipic acid crystallizer. Gathering the experimental results is a large part of this study. The process inputs of the crystallizer are changed to see the effect on the crystal size distribution (CSD). A change in the temperature seems to have the largest influence on the CSD. But the recirculation rate is the most effective process input to vary. The experimental results were used to validate the model structure. The model results shows that the model can simulate the measured mean crystal size accurately. Improvements on the kinetic relations have to be made to also simulate the complete CSD.PEQProcess and EnergyMechanical, Maritime and Materials Engineerin
- …
