Judul: Analisis Cabang Usahatani dan Saluran Pemasaran Pisang Lampung (Kasus di Desa Rabak, Kecamatan Rumpin, Kabupaten Bogor)
Abstrak: Bananas are a commodity with the highest production in West Java and Bogor Regency of Indonesia. Rabak Village in the Rumpin District of the Bogor Regency has the potential to produce bananas of especially the lampung variety. But the village not doing cultivation well that can minimize the risk to get the maximum results, and thus the farmers marketing their bananas are faced with low bargaining power. This research analyzes current banana farming and lampung banana marketing using the R/C ratio so it can determine income and profit earned by lampung banana farmers, while the marketing channel is analyzed with the Li/Ci ratio so it can determine the benefit of marketing undertaken by the marketing institution involved in lampung banana marketing. The result of the ratio R/C in this research shows a value of 1.36, meaning that each rupiah spent will receive income of 1.36, while the Li/Ci ratio in this research have not been equal to each marketing institution involved, so the avowed the marketing channel is yet efficient
Keyword: marketing channel, branch of farming, banana

Judul: Analysis of Cassava Farming Income in Central Lampung Regency
Abstrak: Petani ubi kayu di Terusan Nunyai memiliki dua pilihan saluran pemasaran ubi kayu, yaitu langsung ke pabrik tapioca atau melalui pedagang pengumpul. Kedua saluran ini berbeda dalam harga, rafaksi, dan layanan, yang menyebabkan variasi pendapatan dan margin pemasaran. Penelitian ini bertujuan menganalisis perbedaan pendapatan dan menghitung margin pemasaran pada kedua saluran. Sampel terdiri dari 52 responden: 4 pedagang pengumpul, 28 petani di saluran satu, dan 20 petani di saluran dua. Data primer dianalisis menggunakan metode deskriptif kualitatif, analisis biaya dan pendapatan, R/C ratio, uji t independen, dan margin pemasaran. Hasil penelitian menunjukkan tidak ada perbedaan signifikan pada pendapatan bersih, penghasilan bersih, R/C biaya tunai, dan R/C biaya total antara kedua saluran. Namun, ada perbedaan signifikan pada penerimaan dan biaya total. Tidak terdapat margin pemasaran pada saluran satu, sedangkan margin pada saluran dua sebesar Rp218,60 per kg., In Terusan Nunyai, cassava farmers can sell their harvest directly to tapioca factories or through intermediary traders. These two channels differ in prices, rafaction, and services, leading to variations in income and marketing margins. This study aims to analyze differences in income and to calculate marketing margins of the two channels. The sample consisted of 52 respondents: 4 intermediary traders, 28 farmers in first channel, and 20 farmers in second channel. Primary data were analyzed using descriptive qualitative methods, cost and income analysis, R/C ratio, independent t-test, and marketing margin. The results showed no significant differences in net revenue, net income, R/C of cash costs, and R/C of total costs between the two channels. However, there were significant differences in revenue and total costs. There is no marketing margin in channel one, while the margin in channel two is IDR 218.60 per kg.
Keyword: cassava, channels, income, margin, marketing

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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