Papers by Syamsul Bahri Ahmad
PENGARUH SLAG NIKEL PENGGANTI PASIR SUNGAI TERHADAP KUAT TEKAN DAN POROSITAS MORTA
Knowledge Organization at the Interface, 2020
This study analyzed the processes for publishing and providing archival records of Korean music p... more This study analyzed the processes for publishing and providing archival records of Korean music performance materials in the form of linked open data. The subject of the analysis was records of performing arts materials in the Gugak Archive, which manages and services Korean traditional music performance materials. In the analysis, the research team considered if the results applied to performing arts fields and reflected the characteristics of Korean traditional musical performances and if the records could be published as linked data. The criteria for linked data was set by identifying the resource, designing the data structure, and linking related external data necessary for structuring semantic web data. The study's results could be used in collaboration with cooperate with related organizations that provide Korean traditional performing arts materials or in the improvement of Korean traditional music archives through linked data. 1.0 Overview This research provides analysis and suggestions in building linked semantic data based on the records of the Gugak Archive of the National Gugak Center (NGC). Creating semantic web data enables the information of performing arts stored in a separate data silo to be searchable and accessible in a web environment. In general, separated data stored in a database are processed according to the intention of a service designer. Therefore, data use is limited within the given scope and structure. In addition, the amount of data that can be downloaded or browsed is also limited to avoid website traffic problems or slowdowns. In contrast, linked data expands the scope of sharing and processing raw data in the semantic web environment. The research team analyzed the performing arts records, focusing on the identification of the data unit, modeling of the data structure, and connection of relevant information (Park et al. 2019). The characteristics of performing arts materials and Korean traditional music performances were also considered because the event performance contained in the material should be expressed in the archival records, and related performance materials should be grouped together. Furthermore, improving the format and content of data will also increase the quality and usability of the data. The team analyzed the classification and cataloging information of gugak performing materials in the Gugak Archive and also examined how archival records of gugak performing materials are modeled based on the Functional Requirements for Bibliographic Records-Object Oriented (FRBRoo).
Journal of Data and Information Science, 2020
Purpose This research project aims to organize the archival information of traditional Korean per... more Purpose This research project aims to organize the archival information of traditional Korean performing arts in a semantic web environment. Key requirements, which the archival records manager should consider for publishing and distribution of gugak performing archival information in a semantic web environment, are presented in the perspective of linked data. Design/methodology/approach This study analyzes the metadata provided by the National Gugak Center’s Gugak Archive, the search and browse menus of Gugak Archive’s website and K-PAAN, the performing arts portal site. Findings The importance of consistency, continuity, and systematicity—crucial qualities in traditional record management practices—is undiminished in a semantic web environment. However, a semantic web environment also requires new tools such as web identifiers (URIs), data models (RDF), and link information (interlinking). Research limitations The scope of this study does not include practical implementation strat...
This study investigated the effect of sea water as mixing water and treatment toward compressive ... more This study investigated the effect of sea water as mixing water and treatment toward compressive strength and porosity of concrete containing fly ash 20% as cement partial replacement. A number of concrete cylinder (BTT, BTL, BLT and BLL) measuring 10x20 cm were tested compressive strength and porosity at 28 and 90 days. The results showed an increase of concrete compressive strength followed by decrease concrete porosity along with the increase of concrete age. The increase percentage of BLT and BLL concrete compressive strength against BTT as references concrete at age 28 day were 6.1% and 22.6%, respectively. Then at the age of 90 days the increase percentage were 11.7% and 28.4% respectively.. Furthermore, the porosity of concrete decreased with the increasing of concrete age. The decrease percentage of concrete porosity with specimen (BLL) and (BLT) to reference specimen (BTT) at 90 days age were 6.76% and 4.82%, respectively.
Geopolymer mortar is a mortar with the main binder as a waste material containing silica and alum... more Geopolymer mortar is a mortar with the main binder as a waste material containing silica and alumina compounds using an alkaline solution as a polymerization activator. This study aims to determine the compressive strength of fly ash-based geopolymer mortar class C with the morality of 12M and 16M NaOH solution, the ratio of Na2SiO3 to NaOH is 1, the ratio of binder to natural sand and slag sandis 1: 1.5:1.5 and the flow value (110 ± 5)%. This result is higher than the compressive strength values of geopolymer GPS-NaOH 12M and GPS-NaOH 16M with compressive strength values of 6.01 MPa and 4.86 MPa, respectively. Thus, it can be concluded that conventional mortars include type S mortars and GPS-NaOH 12M geopolymer mortars including type N mortars and GPS-NaOH 16M geopolymer mortars including type O mortars based on SNI 03-6882-2002.
Perbaikan Jalan Desa Pasaka, Kecamatan Sibulue, Kabupaten Bone Dengan Metode Japat
INTEK: Jurnal Penelitian, 2018
Air merupakan salah bahan yang sangat penting dalam campuran agregat, semen dan bahan tambah lain... more Air merupakan salah bahan yang sangat penting dalam campuran agregat, semen dan bahan tambah lain jika dibutuhkan agar terjadi proses kimiawi semen yang membentuk pasta sebagai pengikat agregat. Penelitian ini bertujuan untuk mengetahui pengaruh air laut sebagai air campuran dan perawatan beton terhadap kuat tekan, porositas dan sorptiviti beton. Sejumlah benda uji dengan ukuran 15 cm x 30 cm dan 10 cm x 20 cm dengan kandungan semen 450 kg/m3 diuji pada umur 28 hari dengan mengacu pada standar ASTM. Hasil penelitian menunjukkan bahwa kuat tekan beton yang dicampur dengan air laut (BLT dan BLL) mengalami peningkatan kuat tekan terhadap kuat tekan beton yang dicampur dengan air tawar (BTT dan BTL) yang diikuti dengan penurunan porositas beton. Kuat tekan beton yang dicampur dan dirawat dengan air laut (BLL) diperoleh 352,29 kg/cm2 dengan porositas sebesar beton 17,06 %. Kuat tekan beton yang dicampur air laut dan dirawat dengan air tawar (BLT) diperoleh 331,61 kg/cm2 dengan porositas ...
Investigasi Ketahanan Beton Dengan Fly Ash Sebagai Pengganti Sebagian Semen Terhadap Penetrasi Klorida
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Papers by Syamsul Bahri Ahmad