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Ahmad Taufiq,Yuanita Amalia Hariyanto,Sunaryono,Siriwat Soontaranon 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.75 No.9
Hydroxyapatite, which has been widely used in the medical eld in the last couple of years, is a superior biomaterial due to its biocompatibility and nontoxicity. Hydroxyapatite requires highly magnetic materials to perform maximally in specic medical elds. In this study, hydroxyap- atite/magnetite composites mainly composed of limestone and natural iron sand were synthesized through a coprecipitation method, and composites having different hydroxyapatite-to-magnetite mass ratios were compared. The crystal structure, particle size, fractal dimension, morphology, functional group, and energy gap were characterized using X-ray diffraction (XRD), synchrotron X-ray scattering (SAXS), scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and ultraviolent-visible (UV-Vis) spectroscopy. The research results showed that the hydroxyapatite and magnetite phases had a hexagonal structure and cubic structure, respectively. In general, from the FTIR data analysis, the hydroxyapatite and magnetite particles were iden- tied from the functional groups of phosphate, iron-oxygen, carbonate, and hydroxyl. Moreover, depending on particle size, the samples consisting of 3.7-nm primary particles formed a cluster with a massive three-dimensional structure. Meanwhile, the energy gap showed various values ranging between 3.25 and 3.86 eV.
Traditional Celebes textiles of Indonesia
Kahdar, Kahfiati,Yuanita, Adriane The Costume Culture Association 2013 服飾文化硏究 Vol.21 No.3
It's been a common knowledge that Indonesia has a multicultural nature which produces a rich civilization, traditional textiles is one of the examples. Indonesian textile is one of the earlier/oldest artefacts being studied. The wide range of its selections also a proof that Indonesia already had an advanced culture. In Indonesia, textile isn't just a mere cloth; it also used to refer your social statuses, a ritual complements aspect, and many other symbolic purposes. Celebes textiles just a small example how rich this country culture is. The purpose of this study was to convince people that Indonesian traditional textile has a potential to stand in same ground with any modern textile produced around the world.
Traditional Celebes textiles of Indonesia
( Kahfiati Kahdar Ma ),( Adriane Yuanita S. Ds ) 복식문화학회 2013 服飾文化硏究 Vol.21 No.3
It``s been a common knowledge that Indonesia has a multicultural nature which produces a rich civilization, traditional textiles is one of the examples. Indonesian textile is one of the earlier/oldest artefacts being studied. The wide range of its selections also a proof that Indonesia already had an advanced culture. In lndonesia, textile isn``t just a mere cloth; it also used to refer your social statuses, a ritual complements aspect, and many other symbolic purposes. Celebes textiles just a small example how rich this country culture is. The purpose of this study was to convince people that lndonesian traditional textile has a potential to stand in same ground with any modern textile produced around the world.
Traditional Celebes textiles of Indonesia
Kahfiati Kahdar,Adriane Yuanita 복식문화학회 2013 服飾文化硏究 Vol.21 No.3
It’s been a common knowledge that Indonesia has a multicultural nature which produces a rich civilization, traditional textiles is one of the examples. Indonesian textile is one of the earlier/oldest artefacts being studied. The wide range of its selections also a proof that Indonesia already had an advanced culture. In Indonesia, textile isn’t just a mere cloth; it also used to refer your social statuses, a ritual complements aspect, and many other symbolic purposes. Celebes textiles just a small example how rich this country culture is. The purpose of this study was to convince people that Indonesian traditional textile has a potential to stand in same ground with any modern textile produced around the world.