1,720,959 research outputs found
High abstraction level CAD tool implementation of MOS drain current models
No full textThis paper presents a toolbox in which a compact high abstraction level formulation of the MOS drain current was implemented. The formulation is based on the popular ACM compact MOS model: the approximations introduced in the model preserve the drain-to-source device symmetry and the continuity between all regions of operation (i.e. weak, moderate and strong inversion). The technological parameters involved in the formulation are obtained by means of a fully automatic extraction procedure. Finally, a detailed case study, in which a behavioural analysis of sample-and-hold circuits using the proposed toolbox is performed, is presented. The ATMEL 0.24@mm CMOS process was used as reference for the case study. The MATLAB environment was used to implement the drain current model formulation, the technological parameters extraction and the case study as well
A Controller Area Network Bus Transceiver Behavioral Model for Network Design and Simulation
No full textThe main purpose of this paper is to develop reliable and affordable tools and methodologies for the design, simulation, and fault analysis of controller area network (CAN) bus networks. In this paper, a behavioral model of a CAN bus transceiver is proposed and experimentally verified. Moreover, we developed a methodology to efficiently manage the trade-off concerning accuracy, simulation speed, and convergence issues which are usually involved in the simulation of large CAN bus networks. To this aim, three different architectures of the transceiver behavioral model have been implemented: They can be selected by the user to address specific requirements of intended analyses. The architectures are based on a set of behavioral models of the basic mixed-signal circuit building blocks of the transceiver. The models were implemented using the VHDL-AMS language. Signal integrity, fault analysis, power consumption analysis, corner analysis, etc., can be effectively and reliably implemented. Simulation and experimental results, which demonstrate our approach efficiency, are reported
A mixed-mode behavioral model of a Controller-Area-Network bus transceiver: a case study
No full textThis work presents a case study concerning a Controller-
Area-Network (CAN) bus transceiver behavioral model.
Three different model architectures have been developed in
order to effectively tackle the speed-accuracy-convergence
trade-off in CAN bus transceivers networks simulations. The
model was implemented using the VHDL-AMS language.
The model behavior has been fully validated. Extensive
simulation results are reported: they demonstrate the effectiveness
of the proposed model
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
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