1,720,964 research outputs found
Startlink building system and connections for fibre reinforced polymer structures
Full text linkThe research presented in this thesis examines various aspects on connections and
joints in Pultruded Fibre Reinforced Polymeric (PFRP) structures. The work is
divided into two experimental investigations on the determination of pin-bearing
strength and the characterisation of dowel connections and joint for the Startlink
Lightweight Building System (SLBS).
To support the development of a strength formula for bearing resistance in bolted
connections two pin-bearing strength test series were conducted to study the effects
of load orientation and hot-wet conditioning. The limitations of existing standard test
methods are exposed from a critical review to show that they do not specify the need
for a clearance hole, the range of bolt diameters and PFRP thicknesses found in
practice. Because the size of tension coupons is found to be too big to be cut from
standard structural profiles an alternative test method, having a smaller coupon size,
is needed for every pin-bearing strength to be quantified by testing. Reported in this
thesis are test results using an in-house test method that requires a maximum blank
coupon of 100 mm × 125 mm. Characteristic strength are determined using Annex
D7 of Eurocode 0. Pin-bearing strengths for load orientations of 0, 5, 10, 20, 45 and
90o, to the direction of pultrusion are obtained for a web material taken from a
standard wide flange section of 9.53 mm thick. In the test matrix there were four
sizes of pin diameter from 9.7 mm to 25.4 mm and a minimum clearance hole of 1.6
mm. The in-house test method is shown to satisfactorily determine pin-bearing
strength. Another finding from this study is that the Hankinson formula cannot be
applied to establish pin-bearing strength at any orientation on knowing the two
characteristic strengths at 0o and 90o. To characterise the effect of hot-wet conditioning 0, 45 and 90o specimens were immersed under water for 3000 hours at
40° C. It is found that the average reduction in characteristic strength is in the range
of 18 to 31%. The extent of strength reduction is found to be independent of pin size,
except when the diameter is 25.4 mm.
The second experimental investigation is for fact finding strength tests towards the
application of PFRP dowelling as a method of connection in SLBS. This innovative
building system has been engineering for the execution of a FRP house that meets
the requirements for code level 6. A series of static coupon-sized tests were
conducted to determine the minimum resistance of dowel connections similar to
those used in the Startlink house. These results were used to verify the structural
engineering design calculations. Another sub-assembly test configuration was used
to determine the moment-rotation characteristics of joint details for the portal frame
in the SLBS house. Four different beam-to-column joints with dowel connections,
and with and without adhesively bonded connections, were statically loaded so that
their rotational stiffnesses and modes of failure could be determined. The main
conclusions from this study are that:
-- all joints had adequate strength against the design ULS moment;
-- only when the joint had adhesive bonding between the overlapping beam and
column members does the rotational stiffness approach the design rigid
condition;
-- when clearance holes are present the rotational stiffness is low and applying
adhesive bonding around the dowels cannot remove this structural limitation
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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