1,721,023 research outputs found
Ultrathin and Bendable mm-Wave Chipless Tags Based on Grounded Periodic Surfaces
No full textDepolarizing mm-wave chipless radio frequency identification (RFID) tags based on grounded dipole resonators characterized by an extremely thin profile are proposed. The use of a thin grounded substrate (below 0.15 mm) makes the tags bendable. The presence of the ground plane allows us to isolate the response of the tag from surrounding objects making the proposed configuration suitable for nonplanar lossy objects like filled water bottles or containers. The periodic surface configuration is employed to obtain a sufficiently large RCS to increase the read range of the tags. The proposed tags operate between 26 and 40 GHz, which allows us to achieve the miniaturization necessary for practical scenarios. Toward low cost, thermal printing fabrication is investigated taking lithographic one as a reference. The associated severe loss (introduced by both ultrathin substrate and thermal printing) and the rotation sensitivity of depolarizing label are discussed theoretically and well addressed experimentally. Rotation insensitivity up to 5° and long read range up to 150 cm are experimentally verified. The readability of the proposed ultrathin tags applied to filled bottles is successfully assessed by comparing the performance of tags with and without the ground plane
sj-docx-1-pac-10.1177_18344909231154928 - Supplemental material for <i>OXTR</i> polymorphisms and parental bonding modulate alexithymia: The main effects and interaction
No full textSupplemental material, sj-docx-1-pac-10.1177_18344909231154928 for OXTR polymorphisms and parental bonding modulate alexithymia: The main effects and interaction by Wenping Zhao, Yuting Yang, Wenxuan Guo and Pingyuan Gong in Journal of Pacific Rim Psychology</p
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
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Semantically enabling web service repositories
No full textThe success of the Web service technology has brought topics such as software reuse and discovery once again on the agenda of software engineers. While there are several efforts towards automating Web service discovery and composition, many developers still search for services via online Web service repositories and then combine them manually. However, from our analysis of these repositories, it yields that, unlike traditional software libraries, they rely on little metadata to support service discovery. We believe that the major cause is the difficulty of automatically deriving metadata that would describe rapidly changing Web service collections. In this paper, we discuss the major shortcomings of current Web service repositories and, as a solution, we report on how to use techniques developed in the context of the Semantic Web (ontology learning, service annotation tools, automatic classifiers, metadata based presentation) to improve the current situatio
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