1,720,954 research outputs found

    Design and fabrication waste collector prototype / Muhammad Faiszam Isnin

    Get PDF
    In this era, rivers are an important aspect in an ecosystem. This is because rivers are the main source for humans to get clean water. Despite environmental regulations that protect the quality of the river, solid waste in the form of trash, litter and garbage often ends up in these surface waters. Currently, over 23,000 tonnes of waste are produced each day in Malaysia. However, this amount is expected to rise to 30,000 tonnes by the year 2020. The amount of solid waste generated continues to increase due to the increasing population and development and only less of the solid waste is being recycled. A clean environment is the basic life supporting system and pure water plays a prominent role in balancing the ecosystem. Therefore, this study identifies to overcome the increase of solid waste in a river by the construction of a waste collector prototype. In addition, this prototype will significantly contribute since the solid wastes will flow in the same direction as current of a rive

    Design and fabricate waste collector prototype / Muhammad Faiszam Isnin and Zeno Michael

    Get PDF
    Water pollution affects humans by destroying water and the ecosystems beneath it. Nowadays, people frequently throw trash such as plastics, bottles, papers, tires, etc. Water becomes human’s essential daily needs. In this study, I figure out the solution how to overcome the problem by creating a machine that can help humans to clean a river. Next, the machine that I created have improvise the ideas from the previous waste collector that exist. Waste collector can reduce the number of trash in the river by removing it from the river by using a conveyer that comes with this machine. When the cleaning process happens, it can protect a river from pollution. With this waste collector, all these problems can be overcome. This study demonstrates a waste collector that was designed with a wheel and conveyer. The wheel will run automatically due to river water flow. Next, the wheel will connect to a conveyer by using a shaft. These will make the conveyer move and pull out the trash from the water surface to a rubbish bin at the back of the conveyer. Besides that, to ensure this project is running smoothly, structural elements will be used to prevent any accident from happening. These results suggest a waste collector is a machine that can be used to support the ecosystem and can overcome water pollution by reducing the number of trash in the river

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Get PDF
    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

    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 PDF
    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

    Dispelling the Myths Behind First-author Citation Counts

    Get PDF
    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

    No full text
    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    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
    corecore