1,721,367 research outputs found
Hydrogenography, a thin film optical combinatorial study of hydrogen storage materials
Get PDFGriessen, R.P. [Promotor]Dam, B. [Copromotor
[Dam B on Steinhagen Lake]
No full textPhotograph of Dam B on Steinhagan Lake in Texas.The photograph has been taken from a high vantage point, looking down at the lake and the dam through a tree line
Variant frequencies from targeted sequencing for Dam B.
No full textVariant frequencies from targeted sequencing for Dam B.</p
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
COORDINATED PROGRAM ON PRRSV IN THE NETHERLANDS UPDATE AUGUST 2012
No full textDuinhof, T.; van Dam, B.. (2012). COORDINATED PROGRAM ON PRRSV IN THE NETHERLANDS UPDATE AUGUST 2012. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/151328
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
Destabilization of magnesium hydride through interface engineering
No full textThe aim of this thesis is to study the thermodynamics of hydrogenation of nanoconfined magnesium within a thin film multilayer model system. Magnesium hydride is a potential material for hydrogen storage, which is a key component in a renewable energy system based on hydrogen. In bulk form, magnesium hydride is very stable, which means that hydrogen is released only at elevated temperature. Furthermore, the kinetics of hydrogen sorption is slow, which further hampers the practical use of this hydrogen storage material. A solution to both these issues may be found in nanoconfinement. At the nanoscale, the contribution of the surface (or interface) energy starts to play a large role and potentially destabilizes magnesium hydride. The kinetics is expected to improve due to the increased surface area and shorter diffusion lengths. With a thin film model system, the confinement of magnesium can be directly controlled by changing the magnesium layer thickness, as well as by changing the interfacing materials of the magnesium layer. The effect of the interface energy and further effects from nanoconfinement such as nucleation and growth, mechanical anisotropy and alloying are all investigated. These findings provide valuable insights for the optimization of nanosized hydrogen storage systems, thus paving the road to thin layered nanostructures enabling hydrogen desorption at 1 bar at room temperature.Department of Chemical EngineeringApplied Science
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
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