1,721,897 research outputs found
Towards understanding and improving the transferability of adversarial examples in deep neural networks
No full textProduce Wu Lei : a national icon or a product? a case study on national identity and sports media in China
No full textThe master thesis "Produce Wu Lei: a National Icon or a Product? - A Case Study on National Identity and Sports Media in China" studies the news coverage of a Chinese professional footballer - Wu Lei, by conducting a multi-method qualitative case study to analyze the representation of him in Chinese media. This thesis aims to understand the interrelation between football, media and national identity, and the ways economic value and social value influence news production in China. The study is theoretically informed by the notion of national identity (Benedict Anderson and Eric Hobsbawm), media semiotics and mythology (Jonathan Bignell and Roland Barthes) and sports masculinity (Garry Whannel). This thesis has filled a gap between national identity and sports in East Asian countries. It also offers an opportunity to look into the issue of sports and nationalism from an economic perspective. The thesis is positioned at a multidisciplinary crossroad of social science and political science. The findings illustrate that football is regarded as a tool to challenge Western hegemony in Chinese society. Therefore, after Wu Lei transferred to RCD Espanyol, he has been regarded as the spokesperson of Chinese football in the world. The media mainly build identity on him in two ways. On the one hand, the media continually emphasizes his nationality attribute and creates a binary opposition between "Chinese player Wu Lei" and "other players". On the other hand, the media build national confidence by strengthening Wu Lei's masculinity and identifying him as a national myth. When it comes to social value and economic value, the representation of Wu Lei in Chinese media reflect both the good and bad power of the media. The media attract internet traffics and make profits by selling the national emotion. Nevertheless, the way media cover Wu Lei is also influenced by the new digital environment and those Chinese media are struggling to find a better way to balance the social responsibilities and economic benefits at the same time
Effects of Notches and Defects on Dwell Fatigue Mechanism and Fatigue Life of Ti-6Al-4V ELI Alloy Used in Deep-Sea Submersibles
No full textThe notch (i.e., stress concentration) and defect are important factors influencing the conventional fatigue behavior of metallic materials. What is the influence of notches and defects on the dwell fatigue mechanism and fatigue life? In this paper, the effects of notches and defects on the dwell fatigue behavior of the Ti-6Al-4V ELI alloy used in deep-sea submersibles are investigated under the load control mode. It is shown that the dwell fatigue is insensitive to the defect size (190-438 mu m) compared to the conventional fatigue. For notched specimens, they all present fatigue failure mode under dwell fatigue testing, and the dwell fatigue life is higher than that of the smooth specimen at the same local maximum stress. The dwell of the maximum stress has no influence on the fatigue life and failure mechanism for notched specimens. Moreover, the facet feature is observed in the crack initiation region for both the conventional and dwell fatigue of notched specimens. Electron backscatter diffraction observation indicates that the feature of the fine line markings on the facet in the image by scanning electron microscope is due to the steps on the fracture surface of the alpha grain
Primulina guigangensis (Gesneriaceae): a new species from limestone area in Guangxi, China
No full textWu, Lei, Zhang, Qiang, Xu, Wei-Bin, Mo, Shui-Song (2012): Primulina guigangensis (Gesneriaceae): a new species from limestone area in Guangxi, China. Phytotaxa 38: 19-23, DOI: 10.11646/phytotaxa.38.1.2, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.38.1.
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
FIGURE 2 in Spiradiclis yuanyangensis (Rubiaceae), a new species from Yunnan, China
No full textFIGURE 2. Holotype of Spiradiclis yuanyangensis.Published as part of Wu, Lei, Liu, Cheng, Song, Xiao-Fei & Chen, You-Sheng, 2021, Spiradiclis yuanyangensis (Rubiaceae), a new species from Yunnan, China, pp. 294-300 in Phytotaxa 522 (4) on page 297, DOI: 10.11646/phytotaxa.522.4.3, http://zenodo.org/record/556582
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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