1,721,103 research outputs found
PENGOLAHAN LIMBAH CAIR INDUSTRI SONGKET PALEMBANG MENGGUNAKAN METODE ELEKTROKOAGULASI
Get PDFTHE TREATMENT OF LIQUID WASTE FROM A SONGKET PALEMBANG
INDUSTRY USING ELECTROCOAGULATION
(Seftiani Nopitasari, 2014, 50 sheets, 13 tables, 20 images, 3 attachments)
The development industry songket cloth which is the traditional province of South
Sumatra, increasing the songket production and waste generated. One of the
manufacturing process is dyeing yarn. The immersion liquid waste that is
predominantly red color. In the treatment of colored wastewater is used
electrocoagulation method. Electrocoagulation is a coagulation method using direct
current through an electrochemical process. The method is performed in batch
electrocoagulation where liquid waste is placed in a beaker that contained aluminum
electrodes with dimensions of 16.5 cm x 7.0 cm x 0.2 cm. The parameters are varied
current density 25 A/m2 , 45 A/m2, 65 A/m2, 85 A/m2, the processing time 40 minutes,
80 minutes, 120 minutes, and 160 minutes, to determine the value of pH, BOD5, COD
, TSS, color intensity and phenol. The optimum conditions obtained from this
research at 25 A/m2 current density at the time of 160 minutes. At this optimum
condition can reduce the color intensity of 1120 to 24. Effectiveness of wastewater
electrocoagulation songket was 67.28% for TSS, BOD5 54.13%, 63.64% COD, color
intensity 79.21%, and 74.93% phenol. The results has fulfilled quality standards in
accordance with Regulation of South Sumatra Governor No. 08 in 2012 about the
quality standards of textile industry wastewater.
Keyword: wastewater, Palembang songket industrial, electrocoagulation, aluminium
electrodes
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
FAKTOR YANG BERHUBUNGAN DENGAN KELELAHAN KERJA PADA PEKERJA DI BAGIAN PRODUKSI IV PT. SEMEN PADANG TAHUN 2016
Get PDFFAKULTAS KESEHATAN MASYARAKAT
UNIVERSITAS ANDALAS
Skripsi, 19 Januari 2017
ATHIKA SEFTIANI, No. BP 110333046
FAKTOR YANG BERHUBUNGAN DENGAN KELELAHAN KERJA PADA PEKERJA DI BAGIAN PRODUKSI IV PT SEMEN PADANG TAHUN 2016
xi + 54halaman, 15 tabel, 3 gambar, 10 lampiran
ABSTRAK
Tujuan
MenurutInternational Labour Organization (ILO),sebanyak 38,2% yang menyebabkan kecelakaan kerja di dunia adalah kelelahan kerja. Di bagian produksi IV PT Semen Padang ada sebanyak 89,5% yang mengalami kelelahan kerja. Penelitian ini bertujuan untuk mengetahui faktor yang berhubungan dengan kelelahan kerja pada pekerja di bagian produksi IV PT Semen Padang tahun 2016.
Metode
Penelitianini menggunakan desain cross sectional yang dilaksanakan pada bulan Mei-Desember 2016 dengan sampel berjumlah 57orang.Pengambilan sampel menggunakan Teknik total sampling.Pengumpulan data menggunakan kuesioner berdasarkan pada wawancara dan observasi,menggunakan analisis univariat dananalisis bivariat dengan uji chi-square.
Hasil
Hasil penelitian diketahui bahwa pekerja yang mengalami kelelahan kerja sebesar 89,5%, pekerja yang mengalami beban kerja berat sebesar 43,9%, pekerja yang mengalami status gizi buruk sebesar 31,6%, serta pekerja yang mengalami sikap kerja yang beresiko sebesar 80,7%. Dari hasil analisis bivariat,terdapat hubungan antara sikap kerja (p=0,01) dengan kelelahan kerja,tidak terdapat hubungan antara beban kerja (p=0,215) dan status gizi (p=0.653)dengan kelelahan kerja.
Kesimpulan
Terdapat hubungan yang bermakna antara sikap kerja dengan kelelahan kerja pada Pekerja di Bagian Produksi IV PT Semen Padang Tahun 2016.Disarankanbagi pihak manajemen untuk meningkatkan upaya pencegahan seperti rileksasi dan beristirahat dengan melakukan peregangan otot serta meningkatkan pengetahuan tentang sikap kerja yang ergonomi.
Daftar Pustaka : 34(1997-2016)
Kata Kunci : kelelahan kerja, beban kerja, sikap kerj
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 PDFWe 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 PDFWe 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
HUBUNGAN ANTARA INTERAKSI SOSIAL DALAM KELOMPOK TEMAN SEBAYA DENGAN PRESTASI BELAJAR PADA SISWA SMK NEGERI 13 DI JAKARTA
Get PDFTENIKA SEFTIANI. The Correlation between Social Interaction Peer Group With Learning Achievement At Student Of SMK N 13 In Jakarta. Study Program of Commerce Education Faculty of Economic State University of Jakarta, July 2012.
The aim of this research is to obtain empirical data, valid and reliable fact concerning wheter or not there is correlation between Social Interaction Peer Group With Learning Achievement At Student Of SMK N 13 Jakarta.
The observation was held in SMK Negeri 13 Jakarta for 4 months from March 2012 to June 2012. The method that had been used was the method of survey close to the correlation. The proportional technique had been used to take the samples. The observation deal with the students of SMK Negeri 13 Jakarta thta have 1049 students and the population that could be reached were Student of XI grade of Marketing Class amount 72 students. The sample that could be taken came from 62 students by using sample of population table Isaac & Michael with sampling error 5%.
To get data from variable, researcher using likert scale model for Social Interaction Peer Group (X variable). For variable X from 45 statements which had validated, 36 statements were valid and 9 statements were drop. The calculation reliability of both variables were using Alpha Cronbach method and variable X reliability is 0.920. This proof that the instruments were valid and reliable.
Analysis of condition test, which is normality error test for regression approximates of X on Y with liliefors test, results in Lcount = 0.0865, and Ltable for n=62 with significance of 0.05 is 0.11252, because Lcount Ftable is 46.74 > 4.00, its mean that the regression equation is significant. And linearity regression test yield, in Fcount < Ftable is 0.41 < 1.85 that can be interpreted that the regression equation is linear. Result of hypothesis test with Pearson’s Product Moment shows that rxy = 0.662, then significance of product moment correlation is tested with t-test which yields tcount= 6.84 and ttable = 1.67. It can be result that product moment correlation rxy = 0.662 is significsnt. Coefficient of determined obtained equal to 43.82%, its mean that 43.82% variations of Learning Achievement by Social Interaction Peer Group
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
- …
