1,721,300 research outputs found
A UHF PASSIVE SENSING LINK IN A NEAR-FIELD WIRELESS POWER TRANSFER SYSTEM
No full textThis paper is based on the results obtained during a high-apprentice PhD carried out with the University of Bologna and IMA SpA, Bologna, Italy. It focuses on a nonconventional exploitation of a self-resonant near-field link at UHF for data communication, to be combined in a compact inductive wireless power transfer system. At LF, the inductive channel is designed to deliver up to
1.3 kW to a resistive rotary heater. At UHF, sensing capabilities are made possible by exploiting self-resonant structures, such as split-ring resonators, one at each far-end side of the link. This network is used in a passive sensing system, to convert the data of a remote temperature sensor, representing the system variable load. The reflected power variations at the transmitter side, due to the dc load variations, are successfully used to perform the sensor readout
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
Economic benefits redistribution methodology for renewable energy communities
No full textA large number of renewable energy communities are expected to be created in the near future, and, also in view of the funding that has been allocated in the various national climate and energy plans, there will be interest in their development from entities with different needs belonging to the institutional, industrial, commercial, and tertiary sectors. Given the possibility that these entities will be participated in by a variety of parties (individuals, SMEs, local governments, etc.) and in view of the particular "ethical nature" of RECs, it is to be expected that the remuneration of members will be in accordance with a principle of equity and in proportion to the ability to generate income for the community itself. For these reasons, a categorization of members according to their characteristics as renewable energy producers, prosumers or mere consumers is necessary. In this context, this article, with reference to an example case related to current legislation in Italy, proposes a model for the distribution of benefits related to energy production and sharing within the renewable energy community. These benefits concern those of the energy produced and simultaneously shared/absorbed by the members of the energy community as well as those related to the valorization of the energy fed into the grid, in excess of the consumption of the users of the energy community itself. The results obtained by applying the proposed methodology for the redistribution of the economic benefits accrued by the community among its participants show the usefulness of this distribution model in quantitative and qualitative terms, according to principles of equity and proportionality
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
Pseudomonas pickettii (Biovar VA-II): a rare cause of bacteremias in haematologic patients.
No full textDispelling 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
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