1,720,988 research outputs found
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
Modelling the integration of engineering design and manufacture for capacity building and sustainability
Get PDFD.Ing. (Mechanical Engineering)Abstract: Rapid changes in technology and industrialisation have enhanced the design and manufacture of products owing to improved links between product development and manufacture. However, resulting complexities due to interconnections and interdependences required appropriate skills and equipment, a rare commodity in industrialising countries due to technology and training insufficiencies. Studies carried out in Southern Africa revealed mismatches of skills produced by Higher Education Institutions (HEIs) and those required by industry, apart from the use of conventional equipment and technology which resulted in low productivity and declines in capacity utilisation. While taking cognisance of these challenges, the research aimed at developing alternative strategies using available equipment and expertise to boost productivity and capacity utilisation at selected case study companies and HEIs in Zimbabwe. This was motivated by lack of continuity and sustainability in initiatives that were supported by foreign aid agencies. The research was accomplished through a systems thinking integration of available technologies, skills and policies to cope with the rapid changes while enhancing capacity building and sustainability in engineering design and manufacture. Using a systemic philosophy and systems thinking methodology, this research utilised different approaches from work studies, industrial secondments and attachments by focussing on technologies, training and policies, factored from the highlighted challenges. Data was collected during secondments at selected companies and used for modelling, simulation and optimisation of the companies’ product design and production systems using Arena simulation software and Limn Flowsheet Processor. The optimisation results, coupled with collaborations between industry and HEIs were used as the foundation for the systems thinking sub-models that were eventually integrated into the Technology, Training and Policies (TTP) model which was validated and verified through a looping feedback, control and adjustment of system elements and tested through the University of Zimbabwe (UZ) groundwater enterprise model..
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
A new product development framework for a timber processing company
No full textConference paper,Customer perceptions of products continuously change over time. Marketing specialists are generally tasked with the responsibility of rebranding and product changes. However this is normally technology driven, with inputs from engineering designers and manufacturers providing the designs and feasibilities for either modifying existing designs or developing new ones. An opportunity arose at a timber processing company where a variety of products such as domestic and commercial furniture are manufactured. This paper reports on the development of a framework for formulating new products using the wide array of hard and soft wood that the company processes. A detailed work study was conducted focusing on the company’s production capacity, sales history of the company’s twenty-three products, market trends and interviews with current customers. The research set out to develop innovative and new product platforms (product families) that are unique and represent the company while satisfying customer needs and requirements. A stage-gate model of the New Product Development (NPD) using the stage gate model, Weighted Objectives and Quality Function Deployment (QFD) methods were the engineering techniques employed in this model and a four-wheeler coffee table was developed into a prototype using QFD. Implementation of the stage-gate model and further research into the four-wheeler coffee table were recommended as well as other areas related to NPD
Modelling and simulation of a dump truck tipping mechanism using EdenLISP
No full textThe application and use of EdenLISP in mechanism design and analysis is demonstrated on the tipping mechanism of a
dump truck. The foundation for mechanical engineering design is centred on mechanisms, their design operation and
strength. Several design programs have been developed to assist the engineer in the product development cycle. This
paper demonstrates how a complex mechanism of a typical machine can be broken down, modelled, simulated and
analysed using a program developed using AutoLISP, an interface language as well as an integral part of the AutoCAD
Design Software. The various links that make up the mechanism were initially modelled into simple lines for ease of
display in AutoCAD. This was followed by timing of the various motions to enable the simulation and ultimately the
analysis of the mechanism. Analysis of this nature are beneficial to the mechanical engineering designer in that
potential areas of interference are detected before manufacture while at the same time, cutting down on potential
costs incurred in prototyping.,Zimbabwe Institution of Engineer
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
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