1,721,128 research outputs found
Linker Linked CAGE Polymers and Method for Preparing the Same
No full text본 발명은 CAGE와 링커가 연결된 고분자 및 그 제조방법에 관한 것으로, 더욱 상세하게는, 이산화탄소 흡착능이 우수한 CAGE와 링커가 연결된 고분자와 그 제조방법 및 상기 CAGE와 링커가 연결된 고분자를 이용한 이산화탄소 흡착 또는 포집 방법에 관한 것이다. 본 발명에 따르면, CAGE와 링커가 연결된 고분자는 CAGE에 비해 비표면적이 증가하고, 이산화탄소 흡착능, 흡착량 및 흡착 선택능이 우수하므로, 연소 후 배기 가스에 포함된 이산화탄소 흡착 및 포집제로 유용하다
Azo Bridged Porous Covalent Organic Polymers and Method for Preparing the Same
No full text본 발명은 Azo기로 공유 결합된 다공성 유기 고분자 및 그 제조방법에 관한 것으로, 더욱 상세하게는, 이산화탄소 흡착능이 우수한 Azo기로 공유 결합된 다공성 유기 고분자, 그 제조방법 및 상기 다공성 유기 고분자를 이용한 이산화탄소 포집 방법에 관한 것이다. 본 발명에 따르면, Azo기로 공유 결합된 다공성 유기 고분자는 고온과 물에 대한 안정성이 높고, 이산화탄소 흡착능이 우수함으로써, 차세대 가스 저장 물질의 주원료로 사용하여 공기중 이산화탄소량을 감소시킬 수 있는 효과가 있다
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
고분자-황 공중합체, 이의 제조방법 및 이를 포함하는 리튬-황 전지
No full textThe present invention relates to a polymer-sulfur copolymer, a preparation method thereof, and a lithium-sulfur battery including the same.
In the case of the polymer-sulfur copolymer according to the present invention, since the carrier is polymerized, there is no possibility that the carrier is eluted, and since the sulfur is covalently bonded to the polymer and uniformly distributed in a certain size in the copolymer, when used as a positive electrode active material for the lithium-sulfur battery, the problem of elution of the polysulfide can be improved. In addition, the polymer-sulfur copolymer according to the present invention has a high sulfur impregnation amount, thereby making it possible to realize a high capacity battery
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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