1,722,979 research outputs found
Exposition de Liu Tao
No full textDu 3 février 2017 au 27 mars 2017 Galerie Folia - Paris Le photographe Liu Tao, né en 1985 dans la province du Jiangxi (sud-est de la Chine) et vivant aujourd’hui à Pékin, expose pour la première fois ses clichés en Europe à la galerie Folia (Paris VIe). L'exposition présente une sélection d’images tirées de ces deux séries : «A Weak Road» et «Shanghai Tian Wai», ainsi que d’une troisième élaborée en 2013, «Hungry Beijing». A travers son objectif, il ne cesse de traquer la place de l'homme..
Exposition de Liu Tao
No full textDu 3 février 2017 au 27 mars 2017 Galerie Folia - Paris Le photographe Liu Tao, né en 1985 dans la province du Jiangxi (sud-est de la Chine) et vivant aujourd’hui à Pékin, expose pour la première fois ses clichés en Europe à la galerie Folia (Paris VIe). L'exposition présente une sélection d’images tirées de ces deux séries : «A Weak Road» et «Shanghai Tian Wai», ainsi que d’une troisième élaborée en 2013, «Hungry Beijing». A travers son objectif, il ne cesse de traquer la place de l'homme..
Potential role of two cytochrome P450s obtained from Lithospermum erythrorhizon in catalyzing the oxidation of geranylhydroquinone during Shikonin biosynthesis
No full textSong, Wan, Zhuang, Yibin, Liu, Tao (2020): Potential role of two cytochrome P450s obtained from Lithospermum erythrorhizon in catalyzing the oxidation of geranylhydroquinone during Shikonin biosynthesis. Phytochemistry (112375) 175: 1-9, DOI: 10.1016/j.phytochem.2020.112375, URL: http://dx.doi.org/10.1016/j.phytochem.2020.11237
Extended state observer based indirect-type ILC for single-input single-output batch processes with time- and batch-varying uncertainties
No full textIn this paper, a set-point related indirect-type iterative learning control (ILC) design is proposed for industrial batch processes with time-varying uncertainties and external disturbances. Different from the existing robust feed forward ILC methods solely focusing on error convergence along the batchdirection, the proposed design has a double-loop control structure to conduct also dynamic control performance in the time direction as required in many engineering applications, where the inner loop is a generalized extended state observer based feedback control structure designed to ensure set-pointtracking with robust stability in the time direction, and the outer loop consists of a simple proportionaltype learning controller to update only the set-point command such that the tracking performance can be gradually improved along the batch direction. A tractable linear matrix inequality based sufficientcondition is established to simultaneously guarantee bounded output tracking error and system input against time- and batch-varying uncertainties. An industrial injection molding process model is used to demonstrate the effectiveness and advantages of the new design in comparison to the recentlydeveloped robust feedforward ILC and indirect-type ILC designs
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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