1,720,959 research outputs found
STUDY ON DIFFERENT DRYING METHODS OF RED CHILLI ( CapsicumannuumL.)
Full text linkThe experiments were carried out at Postharvest Research Institute (PHRI), Department of Agriculture and the Division of Postharvest Technology, Advanced Centre for Agricultural Research and Education (ACARE), Yezin Agricultural University (YAU) during April to August in 2019. The first experiment was conducted to investigate the optimum temperature of hot air oven drying at 50ºC, 60ºC and 70ºC on drying of chilli. In the second one, different drying methods of open sun and solar tunnel drying were used as treatments. Before drying the chilli, the second factor, blanching and non-blanching were performed in both experiments. The hybrid cultivar of red chilli (Champion 777) was used as experimental material. The data on moisture content (% wb), drying hour, drying rate (%/h), water activity (aw), color difference (ΔE), browning index (BI), ascorbic acid content (mg/100g) and aflatoxin content (ppb) were recorded. The final moisture content ranged from 5.8 to 7.3% (w.b) depending on drying method. In oven drying method of red chilli, 50ºC showed the longest drying time followed by the drying temperature of 60ºC and 70ºC. Moreover, that treatment not only could minimize browning index and color difference but also could retain the ascorbic acid content compared to drying at 60ºC and 70ºC. In open sun drying method, the longest drying time was 25 hours for non- blanched and 23 hours for blanched chilli. Most of the treatments showed no aflatoxin content and it was much below the permissible level in blanched chilli of solar tunnel drying method. From these findings, the red chilli dried using solar tunnel had considerably lower moisture content, water activity with less in browning index and color difference than open sun drying. Moreover, solar tunnel drying method retained more ascorbic acid content than open sun dried samples. Therefore, solar tunnel drying method was much better than open sun drying method with respect to less time for drying, low moisture content, brighter red color with high ascorbic content. As a pretreatment, blanching should be done before drying red chilli due to lower browning index, less moisture content and higher ascorbic acid content than non-blanched chilli
Biocementation for clay
No full textIn this research, the effect of biocementation on the unconfined compressive strength of clay has been studied. Biocementaion is the use of microbially induced calcium precipitate (MICP) to improve the strength of clay. In this research, kaolin was mixed with different proportions of bacterial solution (Bacillus sp), calcium carbide residue and urea. The volume of bacterial solution was fixed at 30% of the total mass of clay and carbide. Calcium carbide residue was used as the source of calcium ion for calcite precipitate. The samples were then left to be cured for 7, 14 and 28 days.
The properties of MICP treated soil were assessed by the unconfined compressive (UC) test, recording unconfined compressive strength at 7,14 and 28 days, followed by water content. The results show that the compressive strength recorded after 14 and 28 curing days are approximately similar. The results indicate an increased in strength of more than 50% after 28 curing days. The maximum strength of an untreated sample is 310 kPa while the maximum strength of the biocemented sample is found to be 470 kPa. The findings also show that there is an inverse relation between the water content of samples and the unconfined compressive strength.Bachelor of Engineering (Civil
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
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