Judul: Analisis Perubahan Penggunaan Lahan Pada Berbagai Kelas Kemampuan Lahan Dan Keterkaitannya Dengan Aksesibilitas Menuju Pusat-Pusat Pertumbuhan (Studi Kasus Sub DAS Ciliwung Hulu, Kawasan Puncak-Bogor)
Abstrak: Along with Depok, Tangerang, Bekasi (DETABEK), Regency and Municipality of Bogor are located near Jakarta (for about 60 km), hence are influenced economically from Jakarta's growth. It implies that BODETABEK serves as Jakarta's suburban and is known widely as the buffer. These areas are reserved to accept overflows of investment on economic development of Jakarta. The areas are supported by their contiguous spatial setup with enhanced access such as primary road networks and highways. This amenity is shown by duration of travel between Bogor and Jakalia which takes less than 1 hour and therefore attracts people who takes jobs in Jakarta to reside in Bogor. Results of remotely -sensed image classification indicate that the biggest conversion occurs in paddy field areas which decreases to 13,72 % and forested areas which decreases to 43,2 % from previous state (year 1991 - 2001). Urbanized areas rise up to 14,66 %. Classification of land capability shows that Class VI acreage is about 441,43 Ha. It is shown that most ofland utilizations are used inappropriately in comparasion to their actual capabilities. Employing Hayashi 2 (Axis 1) and Multinomial Logit, we find similar results between both of them. Andisols; Climate of III C; Slope class of 8 - 15 %; and the second grade of land capability is the most influencing factors. Instead we also find inconsistencies of the results from both. Distance to nearest roads and its growth centers is the most influencing factor to land use change. On analysis of Hayashi 2 (Axis 3) and Multinomial Logit, we find that the most influenced factor is land capability and distance nearest roads and to growth centers . Scatterplot was employed to illustrate patterns between land use changes, III particular for the conversion patterns of the Forest-Upland Field, ForestSettlement, Forest-Paddy Field, Paddy Field-Upland Field, and Upland FieldSettlement and their relations to four types of distance setup: to nearest roads, to Bogor CBD, to Jakarta CBD, and Cipanas CBD. There are no such patterns observed in this research. Further, conversions, are indicated to all areas regardless of the distance to both growth centers or road networks.
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Judul: Analisis Perubahan Penggunaan Lahan, Pola Ruang dan Tingkat Perkembangan Wilayah di Kota Bogor
Abstrak: Bogor City is located 60 kms from the Indonesian Capital Jakarta and 120 kms from Bandung the capital of West Java Province. Strategic agricultural land and inexpensive land price have encouraged stakeholders to invest in agricultural sector and also non agricultural sector. Land use conversion is inevitable, although the goverment has set up the regulation to control land usage (Act No 26 year 2007). This research are conducted: (1) To analyze existing land use of Bogor City (land use in 2014). (2) To analyze the land use change in period of 2005-2012. (3) To analyze the consistency of existing land use compare to land allocation in the RTRW of Bogor City. (4) To identify regional development hierarchy level in Bogor City. (5) To determine factors that influencing land use change. This research was started with land usage map designing which retrieved from digitized result on administrative map 1: 5000 scales to ikonos image of Bogor City in years of 2005 and 2012. Consistency and inconsistency is obtained by overlaying land use map in 2012 and land allocation map of Bogor City years 2011-2031 (RTRW map). PODES is used to determine the regional hierarchy level by multiple regression method. Existing land use classified into 9 land use, in sequence from the largest one are: mixed garden, non-wellarrang ed settlement, paddy field, well arranged settlement, trade area, water body, dryland farm, open field and goverment office area. Dryland farm land use changes into 2 land use, open field land use change into 6 land use and paddy field land use change into 6 land use. The consistent existing land use compare to RTRW is 40.95% while inconsistence existing land use is 59.05%. During period of 2006 to 2012, most of regional development hierarchy in Bogor City are the relative constant hierarchy (42 villages/61.8%). 12 villages (17.6%) are increase in the hierarchy whilst 14 villages (20.6%) are decrease in the hierarchy. Factors that influencing land use change of Bogor City in period of 2005-2012 are: area of agricultural land in the years of 2005, social facilities growth, and economy facilities growth
Keyword: Spatial Plan., Regional Hierarchy, Land Use Inconsistency, Land Use Conversion

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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