1,720,957 research outputs found

    The experimental study of partial discharge of Malaysian based palm oil

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    Insulation is one of the most important parts in a high voltage apparatus, while insulator is a material that resists the flow of the electric current. Most of the transformer used liquid insulating material where its function is to provide electrical insulation and also act as a coolant to prevent overheating of the transformer. Since years ago, petroleum-based mineral oil has been used as a coolant and insulation purpose because of its high electric field strength, low dielectric losses and good long-term performance. There are some reasons that push the search of environmental friendly insulating oils. Conventional transformer insulating materials are usually non-biodegradable. It can contaminate soil and water when serious spill take place. This may disturb the plantation and other lives. In future, this petroleum will be come to an end because it is a non-renewable source. Therefore, this project has been carried out to seek alternatives of vegetables oil that is more environmental friendly. Refined, bleached and deodorized palm oil (RBDPO) has been recognized to be the potential replacement for petroleum-based mineral oil. The main objective of this project is to execute experimental study effect of ageing time and electrical characteristic of Refined, Bleached and Deodorized Palm Oil (RBDPO) by using partial discharge method. Another objective of this project is to make a comparison on electrical properties between new insulating oil, RBDPO with petroleum-based mineral oil. The result indicates the prospect of RBDPO to be further processed to get better dielectric properties and meet all requirements to be used as liquid insulating material. This is because RBDPO has a potential to be a good liquid insulator because of its high breakdown voltage, low dissipation factor and low capacitance when different ageing time were applie

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Level of corporate social responsibility disclosure of shariah PLCs in Malaysia

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    Corporate social responsibility disclosure (CSRD) has emerged as a critical issue, with an increasing number of studies being conducted in both developed and developing countries. Accordingly, this study aims to examine the level of CSRD of Shariah PLCs in Malaysia. 175 Shariah PLCs listed on Bursa Malaysia's Main Market from year 2007 to 2017 were chosen as a sample. The level of disclosure is measured using newly developed content analysis. The results show that the level of CSRD of Shariah PLCs in Malaysia is increasing but still at a low level. The "community" theme is the most CSR items disclosed, while "workplace" theme is the least CSR item disclosed in the annual report. There is a need for more encouragement from the Malaysian government or regulatory bodies to encourage all PLCs to report their CSR activities in the annual report

    Level of corporate social responsibility disclosure of Malaysian Shariah public listed companies

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    Corporate social responsibility disclosure (CSRD) is a crucial tool for communicating with stakeholders regarding a company's social responsibility activities. All CSR information will be disclosed in the annual report. This research aims to examine the level of CSRD of 175 annual reports of Malaysian Shariah Public Listed Companies (MSPLCs) listed in the Bursa Malaysia from 2007 to 2017. The level of disclosure is measured using newly developed content analysis. The results show that the level of CSRD of MSPLCs is increasing but still at a low level. The "community" theme is the most CSR items disclosed, while "marketplace" theme is the least CSR item disclosed in the annual report. There is a need for further encouragement from the government or Bursa Malaysia to attract all PLCs in Malaysia to disclose their CSR activities in the annual report

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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