1,721,404 research outputs found
Recent Trends in Cash Management System
No full textMaster'sMASTER OF SCIENCE IN COMPUTATIONAL ENGINEERINGProject Supervisor: Tan Yan Hock Daniel, AVP, GTB, OCBC Bank. Dissertation Supervisor: Prof. Wang Jian-Sheng, Dept. of Physics, SMA Fellow, NUS
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
Composite of graphene oxide impregnated palm kernel shell based activated carbon for dye wastewater treatment / Tan Yan Ying
No full textDye wastewater generated from various industrial processes can lead to substantial pollution and environmental damage due to its persistent and recalcitrant nature. Among the various wastewater treatment technologies, adsorption using green and low-cost biomass-based materials stands out as a promising approach for treating dye wastewater. However, raw biomass-based adsorbents such as palm kernel shell (PKS), rubber seed shell, and coconut shell often have limitations in selectivity, recovery, and adsorption capacity, which restrict their use in treating different types of wastewater. This study aims to enhance the adsorption performance of raw PKS activated carbon (PKSAC) through the impregnation with graphene oxide (GO) and iron oxide. Physicochemical analyses revealed that after impregnation with GO and iron oxide, the ternary composite exhibited a significant increase in oxygen content (from 6.01% to 49.73%), a larger pore width (from 3.00 nm to 9.99 nm), and increased oxygenated functional groups compared to raw PKSAC. The adsorption performance of PKSAC-based adsorbents was evaluated for treating synthetic wastewater containing an anionic dye. The adsorption study demonstrated that the ternary composite performed better, achieving 99.8% color removal efficiency and an adsorption capacity of 27.3 mg/g, compared to other PKSAC-based adsorbents (60.7%-73.1%; 16.6 mg/g-19.9 mg/g) under optimum conditions. The ternary composite showed superior performance in chemical oxygen demand and color removal efficiencies, surpassing commercial activated carbons (CACs) by 28.4% and 31.9%, respectively. The reusability of the composite was confirmed over five cycles, maintaining 74.1% performance, significantly higher than CACs (30.0%). Furthermore, the iron leaching (<0.3 mg/L) was negligible for drinking water, confirming the stability and safety of the composite. To further improve adsorption performance, the synthesis process of the ternary composite was optimized. This optimized ternary composite demonstrated an adsorption capacity of 76.4 mg/g for actual industrial printing wastewater, which was 34.5% higher than the composite before optimization (56.8 mg/g). Experimental results indicated that adsorption using the ternary composite is predominantly a monolayer chemisorption process. A quantum chemical analysis revealed adsorption energies below -50 kJ/mol for all functional groups. Feature importance analysis using machine learning revealed that the chemical properties of the adsorbents had a more significant impact on adsorption performance than physical properties. This study also evaluated the possibility of using the spent adsorbent in brick formation, in addition to conducting leaching and phytotoxicity studies. In summary, the research proved that the ternary composite developed from PKSAC is an efficient
adsorbent for treating dye wastewater, offering enhanced performance, stability, and practicality for industrial applications
Unit roots and structural breaks: new knowledge for the ASEAN macroeconomic time series model / Tan Yan Ling … [et al.]
Get PDFThe purpose of this study is to carry out a comprehensive examination of the univariate statistical properties in ASEAN macroeconomic time series from 1960 to 2010 using a battery of endogenous break ADF-type unit root tests. Our empirical findings show that number of rejections of a unit root null is relatively higher when considering structural breaks than without breaks in the models. Most index and rate variables can be treated as trend-stationary processes in Indonesia and Malaysia particularly. However, macroeconomic time series under US Dollar and Local currency terms have an opposite findings. As in ZA models, the US Dollar terms denomination series are more favorable of trendstationary processes. Alternatively, the series under Local Currency terms tend to reject the null hypothesis of a unit root for all ASEAN countries except Thailand in LP models. Hence, the shocks to macroeconomic time series are temporary, these series will return to their long run trend rate of growth. Moreover, the break points are closely associated with global economic events such as the first oil shock of 1973-1975, the second oil shock in 1979-1980, the commodity crisis in 1985-1986 and the Asian financial crisis of 1997-1998. To this extent, if the shocks to series are transitory, then the macroeconomic stabilization policies may not be over-implemented in ASEAN countries particularly for index and rate variables in Indonesia and Malaysia. The policy authorities may use the historical information to forecast future movements in macroeconomic time series. Lastly, our findings also shed light on the importance of considering exchange rate fluctuations in the process of trendstationary and random walk processes
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
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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