1,720,961 research outputs found
A study of secondary moments and moment redistribution in continuous prestressed concrete beams
No full textSIGLEAvailable from British Library Document Supply Centre-DSC:DX189110 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
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
Dispelling 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
Response of soil–foundation–structure interaction of tall building (frame-wall) structural system under seismic effect
Get PDFThe unavailability of standards or validated analysis techniques of estimating the soil -foundation-structure interaction (SFSI) lead to either simplifying or ignoring this interaction. The structural and geotechnical engineers consider the foundation effect on the multi-story building design. Where both the structural and geotechnical analysis is usually conducted individually. The geotechnical engineer may simplify a multi-degree of freedom to a single degree of freedom oscillator, and on the other hand, structural engineers may ignore the soil-foundation-structure interaction SFSI orrepresent the nonlinear soil-foundation-Structure interaction with simple linear springs, where the nonlinear Interaction between the superstructure and the substructure is neglected. This study was carried out using experimental and numerical approaches toanalysis the Interaction of soil foundation structures under seismic effect. Experimental work was performed through a series of shaking table test events for different parametric studies such as building height, soil density, and foundation type under the impact of shaking waves representing the soil vibration of seismic effect. Numerical simulation was performed using two popular software packages i.e.ABAQUS and ETABS package to solve the three-dimensional problem of soil foundation structure response under seismic effect. The results obtained from the software will then be compared with those obtained by experimental work. Based on the literature review, the following parameters (which are believed to have an influence on the Soil Structural Interaction response) were investigated in this study:Building characteristics such as the height and mass,Soil properties including the dynamic stiffness, damping ratio, shear, angle of internal friction and shear wave velocity,Pile group configuration and the nonlinear interaction between piles and the Soil,Type of the foundation such as Raft, and Raft-Pile foundations.Characteristics of the input motion (earthquake type).The main purpose of the experimental tests was to investigate the effect of the parameters on the structure and compare the outcome of those tests with the predictions from the software programme to validate the numerical model for further dynamic studies. The experimental work was divided into four stages: Firstly, the fixed base stage. Secondly, the soil container stage. Thirdly, the soil-foundation-structure interaction (raft foundation). Fourthly, the soil-foundation-structure interaction (pile foundation). Comparing the results of the numerical model and the experimental measurements, it can be concluded that the employed numerical model is appropriate for the simulation of the soil-foundation - structure interaction under dynamic effect. The scale modelsdemonstrate some behaviour of the prototype in economical way without examining the prototype itself. Consequently, the proposed numerical model of raft foundation and pile foundation are valid and qualified method of simulation with sufficient accuracy which can be employed for further numerical dynamic soil-structure interactioninvestigations. to consider the amplification of lateral deflections of soil-foundation-structure interactions under the seismic effect of the shear wall – columns structural system, a simplified calculation method of soil-structure interactions moment has been proposed.The proposed procedure enables structural engineers to extract the response of soil structure interaction in more reliable ways to ensure the design safety and reliability
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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