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    ANALISIS TERJADINYA KERUSAKAN BYPASS VALVE PADA TANGKI SLOP DI KAPAL MT. SANANA

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    ABSTRAKSI Utami, Seruni Putri, NIT. 561911127130 N, 2023, “Analisis Terjadinya Kerusakan Bypass Valve Pada Tangki Slop Di Kapal MT. Sanana”, Skripsi, Program Diploma IV, Program Studi Nautika, Politeknik Ilmu Pelayaran Semarang, Pembimbing I: Capt. Karolus Geleuk Sengadji, M.M., Pembimbing II: Irma Shinta Dewi, M. Pd. Keberhasilan proses bongkar muat cargo di atas kapal kini menjadi tanggung jawab Nahkoda dan perwira sehingga perlu diperhatikan kondisi peralatan penunjang proses bongkar muat. Bentuk pipa dan valve yang begitu sistematik di atas kapal sangat dikhawatirkan apabila terjadi kesalahan pemuatan yang tidak pada tempatnya saat proses bongkar dan muat. Sebelum melaksanakan proses bongkar muat harus dipastikan bahwa semua peralatan atau equipment dalam kondisi normal. Chief officer atau mualim I telah membuat stowage plan guna memberi gambaran dan patokan untuk perwira jaga pada saat pengoperasian cargo. Dari latar belakang masalah yang telah diuraikan, tujuan penelitian ini adalah untuk mengetahui penyebab, dampak serta upaya penanganan kerusakan bypass valve di kapal MT Sanana. Metode penelitian yang digunakan dalam skripsi ini adalah deskriptif kualitatif. Sumber data penelitian diperoleh dari data primer dan sekunder. Teknik pengumpulan data didapat dengan melakukan wawancara, observasi dan dokumentasi. Teknik analisis data yang digunakan yaitu dengan pengumpulan data, reduksi data, penyajian data dan penarikan simpulan atau verifikasi data yang didukung dengan metode triangulasi. Hasil penelitian menyimpulkan bahwa kurangnya perawatan valve di tangki muatan dan tangki slop serta ketidaksesuaian pressure agreement dengan pressure rating manual saat proses bongkar muat mengakibatkan kerusakan pada bypass valve di tangki slop, sehingga berdampak pada berpindahnya muatan pada tangki 1 (satu) dan 4 (empat) kanan kiri ke tangki slop dan berpengaruh pada stabilitas kapal, serta keterlambatan waktu atau delay pada saat proses pemuatan. Akibat hal itu upaya yang dilakukan adalah pemeriksaan dan perawatan valve pada tangki muatan dan tangki slop sesuai dengan SOP, melakukan perbaikan valve dengan mengganti set O-ring bypass valve pada tangki slop yang telah rusak

    KERUSAKAN BYPASS VALVE PADA TANGKI SLOP MEMPENGARUHI OPERASIONAL PEMUATAN KAPAL MT. SANANA

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    Abstraksi – Keberhasilan proses bongkar muat cargo di atas kapal merupakan tanggung jawab Nakhoda dan ABK sehingga perlu perhatian dan perawatan khusus terhadap kondisi peralatan penunjang proses bongkar muat. Susunan pipa dan valve yang begitu sistematik di atas kapal perlu diwaspadai apabila terjadi kesalahan pemuatan yang tidak sesuai dengan stowage plan. Sebelum melaksanakan proses bongkar muat harus dipastikan bahwa semua peralatan atau equipment dalam kondisi normal. Chief officer atau mualim I telah membuat stowage plan sebagai pedoman bagi perwira jaga pada saat pengoperasian cargo. Tujuan dari penelitian ini adalah untuk mengetahui factor penyebab, dampak yang timbul dan upaya penanganan kerusakan bypass valve di kapal MT Sanana. Metode penelitian yang digunakan dalam skripsi ini adalah metode kualitatif. Sumber data penelitian diperoleh dari data primer dan sekunder. Teknik pengumpulan data dilakukan dengan cara wawancara, observasi dan dokumentasi. Teknik analisis data yang digunakan yaitu dengan pengumpulan data, reduksi data, penyajian data dan penarikan simpulan atau verifikasi data yang didukung dengan metode triangulasi. Hasil penelitian menyimpulkan bahwakerusakan bypass valve pada tangki slop disebabkan karena kurangnya perawatan valve di tangki muatan dan tangki slop serta ketidaksesuaian pressure agreement dengan pressure rating manual saat proses bongkar muat. Dampak yang ditimbulkan akibat kerusakan bypass valve pada tangki slop adalah berpindahnya muatan pada tangki 1 (satu) dan 4 (empat) kanan kiri ke tangki slop sehingga berpengaruh pada stabilitas kapal dan terjadinya keterlambatan waktu atau delay pada saat proses pemuatan. Upaya yang dilakukan adalah pemeriksaan dan perawatan valve pada tangki muatan dan tangki slop sesuai dengan SOP, melakukan perbaikan valve dengan mengganti set O-ring bypass valve pada tangki slop yang telah rusa

    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

    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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