1,720,965 research outputs found
Evaluasi Teknis penggunaan shotcrete studi kasus PT. Freeport IndonesiaTembagapura Papua
No full textABSTRAKEvaluasi Teknis penggunaan shotcrete studi kasus PT. Freeport IndonesiaTembagapura PapuaMalik000.09.07.2014Dr. Ir. Hanafi Ashad, MT, Dr. Ir. Iskandar BP.,M.Si.Pascasarjana Magister Sipil EngineeringUniversitas Muslim IndonesiaMakassarSistem penambangan bawah tanah mempunyai resiko yang sangat besar, salah satunya adalah masalah evaluasi teknis penggunaan shotcrete rekayasa secara permanen.Metode beton tembak (shotcrete) adalah suatu metode pengendalian mutu yang salah satu acuan untuk menggunakan campuran antara semen, air, pasir dan agregat dengan cara disemprotkan dengan menggunakan alat bantu. Pengendalian mutu yang dihasilkan oleh beton tembak (shotcrete) diharapkan mampu memberi mutu dan kualitas sesuai standar PT. Freeport Indonesia. Untuk itu perlu adanya kajian teknis untuk penggunaan shocrete pengendalian mutu mengetahui keberhasilan pengunaan beton tembak (shotcrete) di di PT Freeport Indonesia.PT. Freeport Indonesia mempunyai standar yaitu pengendalian mutu sesuai dengan JSA dan SOP waktu yang direncanakan. Demikianpun kekuatan akhir sebesar 30 MPa dalam waktu maksimal 28 hari harus melalui slum test uji bahan beton shotcrete yang diperoleh Semen: Air : Pasir : Kerikil 1: 0,615 : 1,178 : 2,372. Kondisi selama ini menunjukan bahwa ada beberapa penyimpangan yang terjadi sehingga nilai pengendalian mutu shotcrete tidak tercapai dengan optimum. Banyak ditemui juga kondisi shotcrete yang rusak setelah disemprot. Umumnya kondisi ini terjadi karena pengerjaan yang tidak sesuai prosedur yang telah ditetapkan baik itu untuk proses mixing-nya maupun cara penyemprotannnya. Sehingga pengawasan perlu dilakukan terhadap ke-dua hal di atas.Kata kunci pekerjaan shotcrete rekayasa beton permane
Analisis Efektivitas Penerapan Sistem Manajemen Mutu ISO 9001;2008 Dalam Pelaksanaan Proyek (Studi Kasus Proyek Rekonstruksi Jalan Enrekang-Makale-Rantepao (MYC))
No full textABSTRAKMUHAMMAD TAHRIR, Analisis Efektivitas Penerapan Sistem Manajemen Mutu ISO 9001;2008 Dalam Pelaksanaan Proyek (Studi Kasus Proyek Rekonstruksi Jalan Enrekang-Makale-Rantepao (MYC)), dibimbing oleh Hanafi Ashad sebagai ketua komisi pembimbing dan Karim Hadi sebagai anggota komisi.Sistem Manajemen Mutu ISO 9001;2008 adalah sebuah dokumen jaminan mutu terhadap tahapan proses kegiatan pekerjaan konstruksi yang sesuai kaidah manajemen, Ada 8 prinsip ISO yaitu : 1. Fokus pada pelanggan, 2. Kepemimpinan, 3. Keterlibatan Karyawan 4. Pendekatan proses, 5. Pendekatan sistem pengelolaan, 6. Perbaikan terus menerus, 7. Pengambilan keputusan berdasar fakta, 8. Hubungan saling menguntungkan dengan pemasok/mitra kerja. Kedelapan prinsip ISO digunakan sebagai acuan dalam perencanaan, pelaksanaan dan pengendalian dalam tiap proses pelaksanaan kegiatan proyek.Penelitian ini bertujuan untuk : 1) Mengkaji efektivitas penerapan Sistem Manajemen Mutu ISO 9001;2008 dalam pemenuhan persyaratan mutu pada pelaksanaan proyek, 2) Mengetahui faktor-faktor yang mempengaruhi penerapan Sistem Manajemen Mutu ISO 9001;2008 dalam pelaksanaan proyek. Pengambilan data dilakukan dengan wawancara, observasi dan penyebaran kuesioner pada personil (penyedia jasa) kontraktor PT. NINDYA KARYA (Persero), (pengguna jasa) Direksi PU PPK 14, dan (pengawas lapangan) Konsultan Supervisi.Pendekatan dalam melakukan penelitian ini, untuk : 1) Efektivitas digunakan pendekatan deskriptif kuantitatif dan analisis menggunakan skala likert, 2) Faktor - faktor yang berpengaruh digunakan pendekatan deskriptif kuantitatif dan analisis dengan Metode Analitic Hirarchy Process (AHP). Dengan jenis data yang digunakan adalah data primer (hasil wawancara, kuesioner, observasi) dan data sekunder. Berdasarkan hasil penelitian, Efektivitas penerapan ISO 9001;2008 pada pelaksanaan proyek berada dalam kategori baik.Kata kunci : Efektivitas Penerapan, Sistem Manajemen Mutu ISO 9001;2008, pelaksanaan proyek konstruksi
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
Experimental Study of Precast Beam Joints Using Steel Plates in Beam-Column Joints Due to Cyclic Loading
No full textIn seismic design, reinforced concrete structures must perform well under heavy load conditions. To withstand large lateral loads without severe damage, structures require strength and energy dissipation capacity. It is generally not economical to design reinforced concrete structures to the greatest possible ground motions without damage. Therefore, the need for ductility must be weighed against economic constraints. This research is focused on dry joints where the joints are on beams in the plastic hinge area and modeled using steel plates, this modeling will be compared with the hysteresis and ductility curves in three types of specimens namely BU-1 without using plate joints, BU-2 using plate joints measuring 300mm x 400mm, BU-3 plate joints measuring 200mm x 400mm, with the same thickness and quality, namely 8mm thick and Fu 370 MPa. To strengthen the use of the plate connection, A325 bolts with a diameter of 12 mm and Fu 620 MPa are used. The results show that the pinching effect is found in the hysteresis curve of the BU-2 and BU-3 specimens. Meanwhile, for the ductility test at peak load, namely the seventh ductility for BU-1, the value is still better than BU-2 and BU-3. These results can still be improved with several variations of plate thickness, for this reason, further studies are recommended to develop and increase recommendations for several variations of plate joints, because precast joints, especially dry joints, are still the focus of research, especially in Indonesia
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
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
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