1,721,035 research outputs found
Design and implementation of a massively parallel architecture for high-level electronic measurements
No full textDedicated architectures are often a basic requirement to match massive computation and throughput of an increasing number of real-time applications in electronic measurements, in particular for robotics and power applications. Also, a high-level programming view of the architecture and an interactive interface become important to allow easy implementation of complex algorithms, reasonable access to measurement experts without a specific expertise on computers, and a flexible adaptation to the specific application environment. This paper presents the design and the implementation of an advanced measurement system based upon a multiprocessor architecture. Particular attention is given to the programming environment
A fast hybrid system for PD measurement
No full textA fast partial discharge (PD) measuremcnt system is described, which employs analog as well as digital signal processing to achieve high sensitivity and discharge pulse resolution with low spectral distortion. Data on apparent charge, time of pulse occurrence and instantaneous applied voltage are stored in memory for subsequent infonnation retrieval and treatment. The
PD measurement system is designed to provide an integrated response to rapid rise time pulses of 1 to 2 ns, with suitable filtering added to reject extraneous noise
Dual-Block Assembled Microelectronics Tactile Sensor
No full textA recent evolution of MCM sensors, for robotics applications led to introduce a dual - block design for tactile sensors. This solution allow an optimization of the design by reducing the system complexity and improving the final performance of the system. The proposed arrangement does not need any specific calibration during the production process and provides an automatic cancellation of noises introduce by charge amplifiers, even. when system device. The complexity in using devices is so greatly reduced
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
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