1,720,954 research outputs found
(Bulletin No.3)A Survey On The Taiwan Main Irrigating Rivers And Their Currents And Qualties Of Water
No full text1 本省河流，因受地形之限制，河短流急，流水量一般均甚少，而不同時期水量之變化則甚大，故引水灌溉，頗感困難。
2 本省河水之水質，一般尚稱良好，惟白水溪與二層行溪含鈉鹽較高，故引此二溪灌溉之士壤，宜施予適量之石灰。
This survey was carried out by Japanese experts from 1914 to 1923, during the Japan ese occupied period. There were more than twenty rivers having been surveyed and their currents and chemical qualities of water analyzed. Though the data presented in this report were some comparatively old, they seemed still having their values for the reference of the agriculturists and engeeners
(Bulletin No.4) A Study On The Use Of The Plaster Of Paris Absorption Block Electrical Resistance Method For Measuring Soil Moisture
No full text在五種不同構造之焦石膏電極中，以容積為6.2×3.6×0.7cm，鎳線長度為30cm之E型電極示最佳之成績，因此類電極之水份_電阻變化銳敏，適宜於土壤有效水份之測定。
對各種土壤之水份當量，E型電極指示之電阻為70-100歐姆，對枯萎係數約為1000-7000歐姆，在此有效水份範圍內，土壞水份＿電阻之變化均甚顯著，且於數次重複巾均獲得同樣結果。
溫度對電阻測定有影響，在50℃至5℃必間，電阻隨溫度之降低有逐漸昇高傾向，惟共變化甚緩，且較一致，5℃以下則有加速度之進展。溫度每昇降一度，由於電阻之變異而引起之上壤水份差異，在粘土中約±0.1%在壤土中則僅0.03%而已。
The use of the plaster of paris absorption block electrical resistance method f or measuring soil moisture has already been studied and improved by G. Bou-youcos, Alfred B. G. Anderson and N. R. Edlefsen and others. The present investigation was carried out by limiting the purpose to the following points:- (a the proper construction of the electrode used in the absorption block, (b) the conditions and corrections needed for the measurement
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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