Ditemukan 6 dokumen yang sesuai dengan query
Jakarta: Departemen Pertambangan, 1983
549.53 IND a
Buku Teks Universitas Indonesia Library
Dwiki Prasetya Ernanto
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Penelitian ini merupakan rangkaian penelitian lanjutan dari studi iron removal pada sampel pregnant leach solution (PLS) hasil pelindian bijih nikel laterit. Penelitian ini berfokus pada pengendapan unsur nikel dan kobalt yang terkandung di dalam sampel dengan proses hidrometalrugi menjadi produk mixed hydroxide precipitate (MHP). Sebelumnya, sampel PLS sudah dilakukan penghilangan kadar besi dengan penambahan kalsium karbonat sebanyak 2 kali dengan kandungan 25% w/w dan 12,5% w/w yang dilakukan selama 2 jam dan 1 jam pada ...
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Depok: Fakultas Teknik Universitas Indonesia, 2022
S-pdf
UI - Skripsi Membership Universitas Indonesia Library
Mazidah Mamat
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Nanocomposites of zinc-aluminium-anthranilate (ZAAN) have been synthesized at different concentrations of anthranilic acid by co-precipitation method. These materials have been examined in detail by powder X-ray powder diffraction (PXRD) which showed the expansion of the basal spacing from 0.89 to ca. 1.33 nm and the shifting of the 003 peak towards the lower 2q angle. This indicates that the anthranilate anion was successfully intercalated into the interlayer gallery. However, FTIR analysis showed nitrate anion was ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2013
UI-IJTECH 4:1 (2013)
Artikel Jurnal Universitas Indonesia Library
Febriyanti
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Indonesian Journal of Dentistry 2006; Edisi Khusus KPPIKG XIV: 111-116
Apexification is the preparation of the endodontic treatment for a tooth with pulpal necrosis and incomplete developed apex. The aim of this treatment is to stimulate further apex development and formation of calcified tissue at the apex, so that conventional endodontic treatment could be performed. One of the most suitable material for apexification is calcium hydroxide since it has an excellent biocompatibility, antimicrobial property, and ability ...
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Fakultas Kedokteran Gigi Universitas Indonesia, 2006
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Artikel Jurnal Universitas Indonesia Library
Nasution, Abdillah Imron
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Fluorosis is a condition due to ingestion of excessive amounts of flour which can cause the change in tooth structure and strength. However, there is still lack of explanation on the surface structure of crystal hydroxyapatite that influences the microscopic characteristic of fluorosis enamel. Objectives: To investigate the surface structure of crystal hydroxy-apatite in fluorosis enamel. Materials and methods: Determination of fluor concentration and the surface structure of normal and fluorosis enamel specimen were carried ...
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Jakarta: Fakultas Kedokteran Gigi Univerversitas Indonesia, 2009
AJ-Pdf
Artikel Jurnal Universitas Indonesia Library
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Apexification is a procedure well recognized and accepted by clinicians and researchers alike. Apexification is an endodontic treatment that intends to stimulate of apex formation. One material in dentistry is calcium hydroxide that is most commonly used to induce an apical hard tissue barrier. Because of the capacity to promote enviromental condition for tissue repair, calcium hydroxide can be used in the management of most endodontic problem, such as pulp capping, pulpotomy, root canal treatment, ...
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[Fakultas Kedokteran Gigi Universitas Jember, Journal of Dentistry Indonesia], 2007
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Artikel Jurnal Universitas Indonesia Library
