1,720,955 research outputs found

    Evaluasi Penanggulangan Banjir Saluran Primer Gunungsari DAS Rayon 5 Tandes Bagian Hulu

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    Terjadinya banjir/genangan wilayah Gunungsari salah satunya disebabkan oleh perkembangan pembangunan di kota Surabaya, khususnya Rayon Tandes bagian hulu. Pembangunan tersebut mengakibatkan perubahan land use (tata guna lahan) yang sebelumnya berfungsi sebagai daerah konservasi (resapan) menjadi daerah perumahan dan industri. Akibatnya mengubah koefisien pengaliran menjadi lebih besar, serta berpengaruh terhadap air limpasan yang masuk kedalam jaringan drainase menjadi semakin besar. Untuk mengatasi masalah tersebut diperlukan evaluasi terkait sistem primer Gunungsari dengan DAS Rayon Tandes bagian hulu. Solusinya ialah perencanaan ulang saluran Primer Gunungsari dengan mengacu pada rencana tata ruang wilayah Surabaya 2034. Selain itu melakukan pembagian debit melalui sungai sungai di sekitar saluran Gunungsari. Analisa dilakukan dengan menggunakan program bantu HEC-HMS untuk analisa hidrologi dan program bantu HEC-RAS untuk analisa hidrolika Berdasarkan hasil analisa yang telah dilakukan, diperoleh saluran pada bagian hulu selebar 7 meter dengan material beton. Serta dihilir menggunakan box culvert dengan lebar 8 m dan 12 m. Pembagian debit pada sungai sungai di modelkan dengan penggunaan pintu air. ========== Flooding / inundation in area of Gunungsari caused in part by the development of construction in the city of Surabaya, especially Rayon Tandes. The development of construction changes of land use. That were previously functioning as conservation areas (infiltration) into residential and industrial areas. Thus changing the jetting coefficient becomes larger, and the effect on water runoff into the drainage network becomes larger. To overcome these problems required an evaluation related to the primary system Gunungsari with Rayon Tandes the upstream watershed. The solution is to redesign the channel Primer Gunungsari by reviewing the spatial plans Surabaya 2034. As well as the distribution of discharge over time - next time around Gunungsari channels. The analyzes were performed using HECHMS aid program for hydrologic analysis and auxiliary program HEC-RAS for hydraulics analysis Based on the analysis that has been done, the dimensions obtained on the upstream side width of 7 meters with concrete material. As well as downstream using a box culvert with an effective width of 8 m and 12 m. The division of the discharge of the times is modeled by the use of sluice

    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

    Clean Water Supply in Tasikmalaya Municipality, Opportunities and Challenges

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    Currently, there are three sub-districts in Tasikmalaya City that are still vulnerable to clean water, namely Kawalu, Tamansari, and Cibeureum sub-districts. PDAM Tirta Sukapura, owned by the Tasikmalaya Regency Government, has not been able to meet clean water needs, so the Tasikmalaya Municipality Government plans to build a new PDAM as an alternative. The Ciwulan river in Cibeuti Village is a source of water that will be used as a collection point. Rain data was taken from 2 stations, namely Gunung Satria and Cikunten II stations, for ten years. The evapotranspiration value was calculated using the Penman-Monteith method. The calculation of the discharge in the intake area, namely Ciwulan-Cibeuti with a watershed area of ​​405 km2, used the NRECA method using parameters taken from the calibrated Ciwulan-Sukaraja station. The calibration parameters are PSUB = 0.86; GWF = 0.22, reduction coefficient = 0.80; and NSE = 0.764. The determination of the dependable flow is calculated using the Weibull method. The magnitude of the Q90's dependable flow is 4.3 m3/s. The projected population for the next 15 years is estimated at 307,857 people, so the amount of water needed is around 0.535 m3/s. Opportunities for business entities to participate in building PDAM are wide open, with the certainty of return plus profits or independent management by business entities within a certain period of time. The challenge for the government and business entities is to provide reasonable prices to customers and new networks

    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

    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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