1,721,118 research outputs found
Louis A. Sanders Jr. collection
No full textThis collection contains the military orders of Louis A. Sanders Jr. from 1942 through 1971. Sanders was an attorney who worked for the United States Air Force (until 1947, the United States Army Air Force). The collection also contains many photographs taken by Sanders in 1952 in the Philippine Islands, Taiwan, and Hong Kong
Hot formability and microstructural development of spray-deposited Al-Li alloy and composite.
Get PDFThe deformational and microstructural behaviour of the commercial Al-Li alloy 8090 and
an 8090 based composite containing silicon carbide particulate has been investigated.
The materials were deformed at elevated temperature by the test methods of plane strain
compression (PSC) and torsion to provide stress-strain data for the formulation of constitutive
relationships. Torsion testing also provided high temperature ductility data. Isothermal annealing
of rolled samples was carried out at the solution temperature of 530°C to investigate the
recrystallisation kinetics and microstructures produced, with particular emphasis on the effect of
the inclusion of reinforcement particles on the behaviour of the matrix alloy.
Hyperbolic sine forms of constitutive equation have been produced and are found to provide
good agreement with the experimental data. High values of the activation energy are calculated
for the deformation of both the alloy and composite from the PSC test data.
The equations obtained from the two different test methods are found to be comparable for
the composite material, but a discrepancy is found for the monolithic alloy, where apparently less
hardening results from torsion testing.
A distinct transition in microstructure from recrystallised equiaxed grains when deformed
at low temperature to an elongated, sometimes partially recrystallised, structure for material rolled
at high temperature is present in the monolithic material. This is attributed to the balance of
recrystallisation driving force and the Zener pinning force exerted by the 13' (A1 3Zr) phase.
The composite material exhibited greatly enhanced recrystallisation kinetics in agreement
with the theory of particle stimulated nucleation (PSN) of recrystallisation
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
Influence of Ultrafine Ceramic Reinforcement on the Microstructure and Properties of Al-Li-Mg Alloys
No full textDispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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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