Judul: Kesesuaian Klasifikasi Ruang Terbuka Hijau menggunakan Citra Landsat ETM+ dengan RTRW Provinsi DKI Jakarta
Abstrak: Jakarta Provincial Government determine that the proportion of green open space is as much as 30% Jakarta Province land area. It is stated in The Regional Spatial Plan of Jakarta that was enacted in 2012 and prevail to 2030. The objectives of this research are to analyze the results of land cover classification changes using Landsat ETM + imagery in Jakarta Province, and to compare the classification result toward the green open space area in The Regional Spatial Plan of Jakarta between 2000 and 2012. The result showed that land cover changes in Jakarta mostly happens on the green open space area, which declined by 16.3%. Land suitability analysis of green open space that set out in the Regional Spatial Plan of Jakarta compared to the classification results showed that the proportion of Jakarta green open space in 2000 reached 36%, while for 2004 and 2012 the precentage of green open space as much as 27.5% and 25.5% , this results is not in accordance with the standard of green open space in Jakarta Regional Spatial Plan described in DKI Jakarta Provincial Regulation No. 1 of 2012, that is equal to 37.8%
Keyword: urban development, green open space, land cover, The Regional Spatial Plan of Jakarta

Judul: Kesesuaian Ruang Terbuka Hijau pada Rencana Tata Ruang Wilayah dan Tutupan Lahan di Kota Bekasi
Abstrak: Changes in land cover in Bekasi City, which grew rapidly resulting in a potential unsuitable between the Spatial Planning (RTRW) with existing land cover. The purpose of this study was (1) To analyze changes in land cover classification results using Landsat 7 ETM + and Landsat 8 OLI in Bekasi City in 2003, 2009 and 2013, (2) To analyze the suitability of green open space (RTH) on theland cover with the Spatial Plan (RTRW) of Bekasi City. The method used was the digital image analysis using supervised classification method, and the thematic change analysis using geographic information system The results showed that the suitability of green open space on Spatial Planning and land cover between 2003, 2009 and 2013 indicated the most appropriate RTH between Spatial Planning with land cover was in 2009 in the amount of 312.54 Ha while the most unsuitable was the RTH of 2003 in the amount of 129.89 ha
Keyword: Bogor Agricultural University (IPB), Bekasi City, green open spaces, cover change

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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