1,720,966 research outputs found

    Sensitivity Analysis and Productivity Study of Directpipe Technology by using Simulation

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    AbstractMany techniques of trenchless technologies have been evolved over time to install, maintain, and manage underground infrastructure system, but all of these fail to satisfy implementer due to complex implementation process, economy, and adaptability to different geological conditions. Directpipe technology is one of new technology that has been invented by German's Herrenknecht Inc. recently. It claims that the technology is economical, fast, and has a single step installation procedure. The objective of this paper is to analyze and evaluate that claim by using CYCLONE model simulation. The simulation is used to compare the Directpipe technology with traditional trenchless technology by incorporating real costs and duration into the model. Sensitivity analysis is carried out to find out a suitable combination of resources delivering utmost productivity

    Towards the greenship assessment and certificate of new building Design Recognition (DR) for the design of IDB-funded integrated classroom building Universitas Negeri Malang, Indonesia

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    To foster Universitas Negeri Malang (UM) as the Center of Excellence in Learning Innovation, with the support from the Islamic Development Bank (IDB), two 9-storeys integrated classroom buildings will be built, having the total built area about 44,800 sqm, which are divided exactly in two rectangle-shaped towering blocks. The buildings are projected to have green building status for Design Recognition (DR) by approaching GBCI’s greenship rating system. By using DED documents of the buildings, this study analyzes technical and engineering aspects to fulfill greenship requirements and recommends a specific level of greenship. The results show that overall targeted score is 47 and recommend Gold level of greenship

    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

    Toward energy efficiency measures for design of the IDB-funded integrated classroom building in Universitas Negeri Malang

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    Under the support from the Islamic Development Bank (IDB), Universitas Negeri Malang (UM) is going to build two-identical nine storey integrated classroom buildings. The buildings were designed to have green building certificate by proposing and fulfilling the requirements from the Green Building Council Indonesia (GBCI) rating system. For design recognition (DR) phase, the system requires efforts and measures in energy efficiency. The paper analyses all design aspects and criteria included in the working drawings, technical specifications, and bill of quantities as provided in the buildings detailed-engineering-design (DED). The analysis covers the calculation of overall thermal transfer value (OTTV), artificial lighting, vertical transportation, and air conditioning system. By using energy modelling software, the OTTV for Building A and Building B, with 19,445.13 m2 of total floor area using VRF-AC system, are 31.78 W/m2 and 33.48 W/m2 respectively. The proposed annual energy use is 3510.90 MWh with the index of energy consumption is 180.55 kWh/m2 per-year. The results showed that by achieving 32.58% of energy efficiency, the DR of UM’s two classroom buildings is affordable to attain 11 points in the rating system

    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

    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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