1,721,010 research outputs found
A Path-Following Control Algorithm For Manufacturing Systems Based Upon The Decomposed Contour Error
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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
Evaluation of the effects of ultra violet-absorbing film on the population of insect pests and yield of muskmelon
No full text在台灣洋香瓜多以畦面條狀隧道式設施栽培，本文旨在評估使用濾除紫外線塑膠布（簡稱UVAF）被覆之隧道設施對為害洋香瓜害蟲以及瓜果生產之影響。由1995年冬作至1997年春作，在台南縣東山鄉洋香瓜栽培區經四期作之試驗結果顯示，以UVAF被覆栽植洋香瓜可極顯著地降低番茄班潛蠅、南黃薊馬之族群密度，明顯地減少棉蚜、甜菜夜蛾之發生密度，以及病毒病害和一種尚未鑑定之植株黃萎性病害之罹病率；但對銀葉粉蝨之發生卻無抑制作用，其族群密度反較一般透明塑膠布（簡稱CF）被覆區為高。測試UVAF被覆對番茄斑潛蠅及銀葉粉蝨等6種害蟲之行動趨向的影響，顯示有70％以上之供試蟲趨向CF被覆區移動，顯示輻射光譜經UVAF濾除紫外線後對害蟲之行動具忌避作用。UVAF對洋香瓜生長具促進作用，瓜果之產量較CF被覆區增加16至342.6%，可上市一級果及二級果明顯地高於CF被覆區。由於使用UVAF被覆對大部分洋香瓜害蟲及病毒病害之發生具抑制作用，且可增進洋香瓜之產量及品質，極具開發應用價植。
Effects of row tunnels covered with ultraviolet- absorbing film (UVAF) on the population of insect pests and yield of muskmelon were evaluated in muskmelon grown area in Tong-shan, Tainan county from winter crop 1995 to spring crop 1997. The results obtained from 4 crop seasons indicated that muskmelon covering with UVAF was highly protected from infestation of tomato Ieafminer (Liriomyza bryoniae (Kalt.)) and southern yellow thrip (Thrips palmi Karny). The population of Cotton aphid, (Aphis gossypii Glover), beet army worm (Sjxdoptera cxi gua Hubner), and the incidence of virus diseases and a severe but unidentified disease on muskmelon in the plots covered with UVAF were also reduced significantly as compared with those of covering with common transparent films (CF). However, covering with UVAF did not reduce the infestation of silverleaf whitefly (Bemisia argen:ifolii Bellow & Perring). The population of the whitefly on muskmelon covered with IJVAF was about 2 to 20 times higher than those of covering with CF. The effect of UVAF on the moving taxis of 6 insect pests species in a rectangle chamber with UVAF on one end and CF on another end was further determined. When the tested insects were released in the center of the chamber, more than 70% of them including silverleaf whitefly moved toward the CF end, indicating that UVAF had repellent effect on the tested insects. Possible reasons for higher population of whitefly in field plots covered with UVAF were discussed. The tunnels with UVAF cover improved plant development and yield production of muskmelon significantly. The marketable fruits from the plots with UVAF cover increased 16 to 343.1% over those with CF cover, depending on variety, crop season and disease incidence
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
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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