1,721,002 research outputs found
Eficacy of non-woven geotextile as separator for drainage media sandwiching dredged marine clay
No full textGeotextile had been used widely in the constructions and
functioning as separator, filtration and reinforcement. This
study work on the experimental on the dredged sediments from
dredging activities. The sediments were called as dredged marine soils (DMS) which is too soft, slurry and have poor engineering properties. Therefore, it considered as geo-waste. Laboratory testing was performed to determine the preliminary effect on both conditions of drainage layer, either with or without separator between POC or RPM drainage layer and DMS. The results showed that non-separator have more settlement compared to specimens with separator. In addition, RPM (separator) dissipates water faster compared to others specimens. Although POC are known to be good drainage, crushing tendency of POC influenced the time of consolidation, which almost like POC (non-separator). In
conclusion, the use of geotextile indicates a good potential to be applying on the land reclamation and embankment as well
Case histories of slope protection by HDPE Geocells
No full textIt has been widely reported that infiltration accounts for 90 % of slope failures (NAHRIM, 2021). Proper and effective slope protection can reduce infiltration significantly. In fact, bare or poorly protected slopes have 3 to 5 times higher rate of infiltration when compared with well protected slopes. Cut slopes with difficult and adverse conditions such as high cut slopes with acidic graphitic phyllite or schist or highly erodible sandy silt
or rocky slope, etc., cannot be effectively protected by normal slope protection methods such as hydroseeding or turfing. Though guniting or sprayed concrete can be effectively used to protect such difficult cut slope conditions, the ungreen or unaesthetic or unenvironment-friendly appearance is generally and increasingly not acceptable by general public and government authorities
including JKR Malaysia. Recently, geosynthetic product with
generic name called HDPE (high density polyethylene) geocells have been proposed and accepted to be used to vegetate difficult steep acidic and rocky slopes successfully in respect to reduce infiltration to practically nil and to provide green pleasing slope
finishes. Unlike normal polymers, HDPE is a durable polymer, inert to chemical attacks and its strength is practically unaffected by UV rays or acids. It is found that HDPE geocell confinement system
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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