1,720,954 research outputs found
Evaluasi Sistem Pengaliran Dalam Pengoptimalan Konsumsi Energi Pada SPAM Kota Bangkalan Perumda Sumber Sejahtera Kabupaten Bangkalan
No full textPerumda Sumber Sejahtera Kabupaten Bangkalan khususnya di SPAM Kota Bangkalan menggunakan sistem pemompaan dalam mendistribusikan air ke wilayah layanannya. Hal ini menjadi permasalahan yang dihadapi, dikarenakan konsumsi energi yang cukup besar dalam operasional pompa. Berdasarkan Buku Kinerja BUMD Air Minum Tahun 2022, biaya energi Perumda Sumber Sejahtera mencapai Rp.890/m3 (biaya energi rata-rata nasional Rp.356,34/m3), Sehingga diperlukannya evaluasi serta pengoptimalan dalam konsumsi energi khususnya di SPAM Kota Bangkalan. Penelitian ini menggunakan metode deskriptif dengan pendekatan survey dan studi kasus. Analisis kondisi eksisting berupa evaluasi kinerja pompa distribusi, kualitas daya, serta jaringan distribusi sehingga dapat diidentifikasi penyebab tingginya biaya energi pada SPAM Kota Bangkalan. Selain itu rekomendasi perbaikan akan dianalisis potensi penghematan yang dihasilkan serta nilai investasinya akan dinilai kelayakannya menggunakan analisis BCR, PP, NPV, dan IRR. Evaluasi aspek kelembagaan menggunakan analisis SWOT dalam merumuskan program penguatan kelembagaan pada Perumda Sumber Sejahtera. Hasil dari penelitian ini didapatkan bahwa biaya energi yang tinggi dapat disebabkan oleh rendahnya nilai efisiensi pada masing-masing pompa distribusi yakni berkisar 35-52% dan nilai SEC berkisar 0,30-0,46 kWh/m3, serta adanya perbedaan tarif di jam-jam tertentu (Waktu Beban Puncak). Dari hasil simulasi dan analisis kondisi eksisting pada wilayah distribusi pompa junok diperlukan optimasi pompa secara penuh guna meningkatan efisiensi pompa, perbaikan jaringan distribusi guna memenuhi kriteria desain dengan mengurangi headloss dan penambahan tekanan menggunakan pompa booster, serta pengaturan pola VSD. Sehingga terdapat penghematan sebesar Rp. 4.258.740 tiap bulannya. Dilihat dari kriteria investasi, rekomendasi yang diberikan dapat dikatakan layak dinilai dengan metode BCR, PP, NPV, serta IRR. Dalam pelaksanaan peningkatan efisiensi energi diperlukan strategis penguatan aspek kelembagaan yakni dengan menciptakan strategi yang meminimalkan kelemahan untuk memanfaatkan peluang.
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Perumda Sumber Sejahtera Bangkalan Regency, especially in the Bangkalan City SPAM, uses a pumping system to distribute water to its service area. This is a problem faced, due to the considerable energy consumption in pump operations. Based on the 2022 BUMD Drinking Water Performance Book, Perumda Sumber Sejahtera's energy costs reached Rp.890/m3 (national average energy costs of Rp.356.34/m3), so it is necessary to evaluate and optimize energy consumption, especially in Bangkalan City SPAM. This research uses a descriptive method with a survey and case study approach. Analysis of existing conditions in the form of evaluating the performance of distribution pumps, power quality, and distribution networks so that the causes of high energy costs in Bangkalan City SPAM can be identified. In addition, improvement recommendations will be analyzed for potential savings generated and the investment value will be assessed for feasibility using BCR, PP, NPV, and IRR analysis. Evaluation of institutional aspects using SWOT analysis in formulating institutional strengthening programs at Perumda Sumber Sejahtera. The results of this study found that high energy costs can be caused by the low efficiency value of each distribution pump, which ranges from 35-52% and SEC values ranging from 0.30-0.46 kWh/m3, as well as tariff differences at certain hours (Peak Load Time). From the simulation results and analysis of existing conditions in the junok pump distribution area, full pump optimization is needed to increase pump efficiency, improve the distribution network to meet design criteria by reducing headloss and adding pressure using booster pumps, and setting VSD patterns. So that there is a savings of Rp. 4,258,740 per month. Judging from the investment criteria, the recommendations given can be said to be feasible assessed by the BCR, PP, NPV, and IRR methods. In the implementation of energy efficiency improvement, it is necessary to strategically strengthen the institutional aspects by creating strategies that minimize weaknesses to take advantage of opportunities
Evaluasi Sistem Distribusi Junok SPAM Kota Bangkalan Dalam Peningkatan Efisiensi Energi
Full text linkPerusahaan Umum Daerah Air Minum Sumber Sejahtera Kabupaten Bangkalan menggunakan sistem perpompaan secara penuh pada sistem distribusi. Biaya energi yang dikeluarkan Perumdan Sumber Sejahtera mencapai Rp890/m³ nilai tersebut jauh melebihi beban biaya energi rata-rata secara nasional yaitu sebesar Rp356,34/m³, sehingga perlu adanya upaya dalam peningkatan efisiensi energi. Penelitian ini menggunakan metode deskriptif dengan pendekatan survei dan studi kasus dengan menggunakan data primer dan sekunder. Analisis evaluasi jaringan menggunakan bantuan software EPANET 2.2 untuk mengetahui kondisi eksisting jaringan. Hasil penelitian menunjukkan terdapat permasalahan pada kondisi eksisting sistem jaringan distribusi Junok. Rekomendasi penelitian perlu adanya perbaikan yakni optimalisasi efisiensi pompa distribusi, penambahan pipa menggunakan sistem paralel, penambahan pompa booster inline pada jam puncak, dan optimalisasi pola VSD sehingga dapat melakukan penghematan hingga Rp 4.258.740/bulan
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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