1,720,959 research outputs found
BIELOMATIC MACHINE PRODUCTIVITY ANALYSIS USING OVERALL EQUIPMENT EFFECTIVENESS (OEE) METHOD: CASE STUDY
No full textProductivity is an activity in producing an item or product using the most effective and efficient way possible. To increase the productivity of machines/equipment, it is necessary to apply TPM. Section CV 6 has applied the TPM method, but it doesn't work consistently so there are still a lot of loss time. As a result of the loss time, the resulting production is not in accordance with the company's target. So the purpose of this research is to measure the productivity level of a bielomatic machine by using the Overall Equipment Effectiveness (OEE) method and to minimize the Six Big Losses which are the cause of the decline in engine performance. Based on the results of the implementation of the method and discussion, the results of the calculation of the OEE value from 62.76% - 80.03%, it can be concluded that the bielomatic machine still has an OEE value below the standard 85%. From the calculation of the six big losses, several factors were found that caused the low productivity of bielomatic machines, namely the setup and adjustment, Equipment Failure, and Reduced Speed sections. This study also provides input for improvements in the setup and adjustment, Equipment Failure, and Reduced Speed sections after parsing existing problems using Fishbone diagrams
Implementasi Pengendalian Kualitas pada Proses Pengeringan Teh Hitam (Orthodox) Menggunakan Metode Six Sigma (DMAIC) (Studi Kasus : PT. XY)
No full textProses pengeringan merupakan salah satu Critical Control Point (CCP) yang terdapat dalam rangkaian proses produksi teh hitam (Orthodox). Kurang maksimalnya proses pengeringan teh hitam dapat menyebabkan kualitas bubuk kering yang tidak sesuai dengan standar. Permasalahan yang ditemukan pada proses pengeringan PT. XY adalah ditemukannya bubuk teh yang mengalami penyimpangan yang harus di rework karena kadar air yang terkandung tidak memenuhi standar perusahaan (3 - 4%). Penelitian ini dilakukan untuk mengetahui nilai sigma yang terdapat pada proses pengeringan dan faktor penyebab terjadinya penyimpangan pada bubuk teh hasil pengeringan serta menentukan alternatif solusi yang diprioritaskan untuk mengatasi penyebab penyimpangan tersebut. Metode yang digunakan untuk mengukur kinerja pada proses pengeringan dilakukan dengan menggunakan metode Six Sigma (DMAIC), sedangkan metode yang digunakan untuk menganalisis prioritas perbaikan adalah Failure Mode and Effect Analysis (FMEA). Hasil penelitian menunjukkan bahwa proses pengeringan teh hitam memiliki level sigma sebesar 4,29 sigma dengan kemungkinan kerusakan sebanyak 2.608 sampel dalam satu juta produksi. Penyebab terjadinya penyimpangan pada proses pengeringan terletak pada faktor manusia, material dan mesin. Prioritas rekomendasi perbaikan dilakukan secara berurutan dimulai dari failure mode dengan nilai RPN tertinggi (336) hingga failure mode dengan nilai RPN terendah (80) sehingga kinerja pada proses pengeringan dapat meningkat
HOR Model & AHP - TOPSIS untuk Pengelolaan Risiko Rantai Pasok Darah
No full textUnit Transfusi Darah (UTD) di Kota Pekanbaru adalah organisasi sosial kemanusiaan yang bertugas untuk menyediakan pasokan darah. Pada saat ini UTD di Kota Pekanbaru memiliki beberapa kendala mengenai pengelolaan risiko rantai pasok darah. Kendala banyak terjadi terutama pada saat proses penyimpanan dan pendistribusian kantong darah. Desain mitigasi risiko rantai pasok dipilih menjadi satu strategi yang tepat dengan kondisi UTD di Kota Pekanbaru saat ini. Langkah awal dari penelitian ini adalah melakukan observasi terhadap aktivitas rantai pasok darah dengan metode pengembangan Supply Chain Operation Reference (SCOR), dilanjutkan dengan mengidentifikasi risiko dari agen risiko dan penyebab risiko dengan metode house of risk, dan yang terakhir menentukan prioritas tindakan rantai pasok dengan metode Analytical Hierarchy Process (AHP) - Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Hasil penelitian didapatkan bahwa terdapat 24 potensi risiko yang terjadi dengan 23 agen risiko. Dari Hasil identifikasi aksi mitigasi terdapat 15 strategi penanganan diantaranya adalah memberikan pelatihan rutin terhadap semua pekerja (PA1), kemudian disusul dengan meningkatkan komunikasi dengan mitra (PA5), melakukan sosialisasi kegiatan donor darah (PA6) hasil tersebut akan dilanjutkan dengan proses AHP-TOPSIS untuk mengambil prioritas tindakan mitigasi terbaik.
Kata Kunci: House of risk (HOR), Analytical Hierarchy Process. Supply Chain Operation Reference, Mitigasi Risiko
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
No full textWe 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
Analysis of supply chain risk mitigation integrated with fuzzy logic, house of risk and AHP (Case study at CV. Multiguna)
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