Judul: Study of Land-use change for referral of spatial pattern arrangement in the Gedong Wani Production Forest Area, Lampung Province.
Abstrak: According to Law No. 41/1999 regarding Forestry, production forest has principal function of producing timber forest products, non- timber and other environment services. However, it is not found in the Gedong Wani production forest area Lampung province, as the region has grown to become the definitive rural land uses such as residential, farm and forest plantations that do not function as intended. This study aims : (1) to analyze the development of the village in a forest area, (2) to analyze land use and land use changes in the period 2000-2013, (3) to analyze influence of physical factors of land, demography and forest land use policies on land use change in forest area, (4) to predict landuse within a period of 13 years ahead and (5) to formulate policy directives of spatial patterns arrangement of forest area in order to function as intended. The study was conducted in Gedong Wani production forests area in South Lampung and East Lampung regencies. The method was used as follow : (1) to analyze of rural development using schallogram analysis, (2) to analyze land use through interpretation of satellite imagery Landsat 5 TM in 2000 and Landsat 8 TM In 2013, landuse changed analysis through overlay with Geographic Information Systems (GIS), (3) landuse prediction with Cellular Automata approach, (4) to analyze physical aspects of the land , demography and landuse forest policies that influence land use through regression logistic Binner, (5) to formulate refferal of spatial patterns arrangement of forest production area through synthesis of land-use and rural development analysis with consider of utilization and using of forest area according to Act No. 41/1999. The results showed that there were 39 villages in GedongWani production forest area with the highest growth rate in 2011 found in Jati Baru village Tanjung Bintang districts South Lampung regency. Land-use change between 2000 and 2013 show an increase in smallholder plantation and built up area, conversely, a decrease in extent of dry land cultivation and forests. In terms of the physical aspects of the land, demography and landuse forest policy, the factors that influence land use change into dry land cultivation and built up area are land-use forest policy and addition of number of people. Land -use change posibility occurs on land that has borrow-use permits of forest area for industrial and land rights that have been change of forest land for development of the new city of Lampung as well as lands that have not allocated the rights / permits and forest use, while the chances of a change in land use to smallholder plantations occur on Ultisol soil type. Prediction of land use in year of 2026 based on the assumption of behavioral changes in land use in the periode of previous years, showed an increase in smallholder plantations and built-up area, and decrease in dry land cultivation and forest area. Policy directives of spatial patterns arrangement of production forests is to regulate the use of existing land use and the use of appropriate mechanisms of production forest area according to Act No. 41/1999 which adds forest area
Keyword: direction, forest production, land use, prediction, village

Judul: Deteksi Perubahan Penggunaan Lahan Di Kabupaten Lampung Barat
Abstrak: Perubahan penggunaan lahan merupakan suatu proses perubahan dari penggunaan lahan sebelumnya ke penggunaan lahan lain yang bersifat permanen maupun sementara dan dapat berdampak positif maupun negatif. Tujuan dari penelitian ini adalah mengetahui pola penggunaan lahan dan perubahannya pada periode 2000-2010 dan prediksi penggunaan lahan Kabupaten Lampung Barat tahun 2030 dengan metode Artificial Neural Network (ANN) serta melihat ketidakselarasan alokasi pemanfaatan lahan RTRWK terhadap penggunaan lahan. Perubahan penggunaan lahan pada periode 2000-2010 menunjukkan bahwa hutan lahan kering primer berkurang drastis seluas 15.578 ha, sementara pertanian lahan kering campur semak bertambah seluas 25.943 ha. Prediksi penggunaan lahan tahun 2030 menggunakan ANN mengindikasikan bahwa terjadi penurunan luas penggunaan lahan hutan lahan kering primer (26.118 ha), belukar (17.624 ha), hutan lahan kering sekunder (798 ha), belukar rawa (294 ha), rumput (87 ha ) dan tanah kosong (85 ha), sedangkan pertambahan luas terjadi pada penggunaan lahan pertanian lahan kering campur semak (42.966 ha), pertanian lahan kering (1.296 ha), pemukiman (582 ha) dan sawah (162 ha). Analisis ketidakselarasan penggunaan lahan menghasilkan bahwa terdapat 197.709 ha (39,42%) penggunaan lahan di tahun 2030 tidak selaras terhadap peruntukan lahan dalam RTRWK. Ketidakselarasan pemanfaatan lahan terbesar terjadi di peruntukan Taman Nasional Bukit Barisan Selatan (TNBBS) sebesar 94.796 ha (18,90%).
Keyword: Artificial Neural Networks (ANN), ketidakselarasan, pemodelan perubahan penggunaan lahan, perubahan penggunaan lahan

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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