1,720,955 research outputs found
Hydroponic Nutrient Film Technique (NFT) System Based on Automation in Ciparay Village
Get PDFHydroponics is a farming technique that has many advantages. This system has many types, for example the Nutrient Film Technique (NFT). In this activity, an NFT hydroponic system based on automation is created for parameter settings that affect plant growth. Several parameters are controlled, such as pH and TDS on plant nutrition, as well as humidity and air temperature in the environment. This system was placed in Ciparay village to help the community learn hydroponic farming. As a result of this activity, the entire system can work well, but there are still some leaks. After this system worked, socialization activities were carried out to the Ciparay community to explain how to use the system for hydroponic cultivation
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
Characterization Product of Coconut Shell Gasification as Liquid Fuel Through Catalytic Cracking Process with Activated Natural Zeolite Catalyst
No full textThere are 3 types of general fuels widely used, namely solid, liquid and gaseous fuels. Liquid fuel is the most frequently used fuels because its the easiest to use and for transportation. Type of liquid fuel commonly used is gasoline and diesel. However, the amount of fossil fuels is dwindling, so that at this time a substitute fuel from biomass and its derivatives is needed. One of the commonly used natural resources is biomass. This biomass is used not only directly but can also be used indirectly. One of them is the gasification process. The gasification process produces 3 products, gas, solid and liquid. The liquid gasification product is rarely used because its considered a B3 waste. The liquid gasification product is tar. Tar is a substance composed of various long chain hydrocarbon compounds. Therefore, tar has the potential to be processed into fuel. Therefore, currently we process tar as a fuel by cracking the tar to obtain light hydrocarbon products which are equivalent to gasoline or diesel. This process uses a natural zeolite catalyst to break down these hydrocarbons. The natural zeolite used is zeolite originating from Padalarang, West Java. This natural zeolite has been processed to obtain a suitable Si/Al content for cracking. After the cracking process with catalyst, liquid fuel will be produced. GCMS test results for liquid products is component acetic acid with a concentration of 5.87.2%, phenol 5.55.9% and C8H10O2 and C8H10O3 9.110.5%. Based on these components, the resulting liquid fuel is equivalent to gasoline
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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