1,722,059 research outputs found
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
Noise property of a quadrature balanced VCO
Full text linkA quadrature balanced voltage controlled oscillator (B-VCO) with current source switching is proposed and analyzed. This letter shows analytically that the switching improves the phase noise. A switched transistor is also used as a coupling transistor to generate quadrature signals without degrading the phase noise. To investigate the effect of quadrature coupling on the phase noise, a single B-VCO and a quadrature B-VCO are implemented with identical components in an 0.18-mu m CMOS process. Both VCO cores draw about 8.8 mA under a low bias voltage of 1.8 V. The oscillation frequencies are 10.21 GHz and 10.81 GHz. The measured phase noises of the single at an offset frequency of 1 MHz VCO is -114.83 dBc/Hz while that of the quadrature VCO is -116.67 dBc/Hz. The quadrature B-VCO is superior to the single B-VCO with respect to phase noise and oscillation frequency in the X-band.The authors would like to thank the Staff of TELTRON for
chip fabrication and support
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
Proposal of Financial Plan for PLASTY-KO, s. r. o.
No full textHlavním cílem diplomové práce je sestavení dlouhodobého finančního plánu na tři roky: 2014, 2015 a 2016. Pro zpracování byla vybrána společnost PLASTY-KO, s. r. o., která sídlí v obci Kobylí. Je zde zpracován podrobný rozbor z pohledu vnějšího a vnitřního prostředí jmenované společnosti. Výsledky použitých metod pro zpracování analýzy dále slouží jako podklad pro stěžejní návrhovou část. Ta se upíná na splnění hlavního cíle.Main goal of the diploma thesis is a composition of a long-term financial plan for three years: 2014, 2015 and 2016. Processing company was chosen PLASTY-KO, s. r. o. located in Kobylí. There is a detailed analysis from the outside and also inside of surroundings of the company. Results of methods for processing the analysis are also used as groundwork for a crucial suggestion part of the thesis. This one is focused on a fulfilment of a main goal.
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
Advances in air filtration technologies: structure-based and interaction-based approaches
No full textIntensifying air pollution has engendered growing public health concerns due to its broad and adverse effects on humanity. As a result, the development of air filtration technologies has received increased attention as a practical and promising solution. Till now, many efforts have sought to advance air filtration technologies to overcome the trade-off relationship between filtration efficiency and pressure drop. This review discusses recent progress in air filtration technology with respect to two distinct strategies, the first about optimizing filter structure and then on enhancing electrostatic interaction. Three different structure-based techniques are reviewed, including fiber morphology modification, component hybridization, and multilayer stacking, and then three interaction-based approaches that operate by imposing charge are discussed, such as induction charging, triboelectric charging, and corona charging. Furthermore, two types of active air filtration applications are comprehensively discussed as interaction-based approaches. The review concludes by discussing the current limitations and future prospects of air filtration technologies, including applications beyond air purification. (C) 2021 The Authors. Published by Elsevier Ltd.Y
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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