Judul: Kajian Pelelangan Ikan dan Pendapatan Nelayan Jaring Cumi-cumi di PPI Muara Angke Jakarta
Abstrak: Pelelangan ikan merupakan salah satu aktivitas ekonomi di pelabuhan perikanan yang memberikan keuntungan bagi penjual dan pembeli. Pelelangan ikan berhubungan dengan pendapatan nelayan karena proses pelelangan akan menghasilkan harga jual/beli yang layak di TPI. Tujuan penelitian ini adalah mengetahui bentuk hubungan kuantitatif antara pelelangan ikan dan pendapatan nelayan jaring cumi-cumi dan mengetahui persepsi nelayan terhadap pelelangan ikan dan di PPI Muara Angke.. Dengan menggunakan analisis regresi dan korelasi linear sederhana didapatkan bentuk hubungan antara pendapatan bersih nakhoda per trip dan nilai penjualan per trip adalah Y=0,0833X-3.830.119 dengan nilai r=0,83, pendapatan bersih nakhoda per hari dan nilai penjualan per hari Y=0,1227X-245.858 dengan nilai r=0,91, dan pendapatan bersih nakhoda per trip dan rata-rata harga untuk satu trip penangkapan dengan nilai r=0,31. Hasil penelitian menunjukkan bahwa persepsi sebagian besar nelayan menjual hasil tangkapan melalui pelelangan ikan adalah karena nelayan tidak perlu lagi mencari-cari pembeli (34,4%) dan nelayan mendapatkan kepastian akan adanya transaksi (28,1%).
Keyword: Fish auction, Fishermen revenue, PPI Muara Angke, Squid nets, Fishing ports, Squid fishing, Regression analysis, Linear correlation, Net income

Judul: Peran Pelabuhan Perikanan terhadap Efisiensi Usaha Penangkapan Jaring Cumi di PPI Muara Angke Jakarta
Abstrak: PPI Muara Angke is a fishing port which can optimalize its role for squid net fisheries efficiency. Squid net is a leading fishing gear in PPI Muara Angke. The purpose of this research were to determine squid fishermen's income, to identify the factors that influence it, and to determine the role of fishing port in a efficiency of squid net fisheries. The analysis methods that used in this research were calculation of income, multiple linear regression analysis, and likert scale. The result of this research showed that in east monsoon the squid net fishermen's income was Rp. 135.220.966/trip and in west monsoon the fishermen's income was Rp. 11.105.431/trip, the factors that influenced income were operational cost, production, squid price, and fishing vessel size, but the fishing experience was not influence the fishermen's income. The facilities that had role were jetty, fish auction area, fuel station, repair and maintenance facility, and equipment supply stalls. The facilities that lack of role were port basin, the fishing ground information center, and clean water tank.
Keyword: squid net, PPI Muara Angke, income, fishing port

Judul: Photosensor producing based on ferroelectric material of Ba0,5Sr0,5TiO3 doped by Ferrium Oxide (Fe2O3) on a P-Type Silicon Substate Si (100) applied as a digital camera with a single pixel image sensor
Abstrak: Thin film Ba0,5Sr0,5TiO3 (BST) doped with Fe2O3 was grown on p-type silicon substrate (100) using chemical solution deposition (CSD). It used the solvent 2-methoxyethanol with annealing temperature of 850°C and the doping treatment Fe2O3 of 2.5, 5, 7.5, 10 % of the mass formed BST. Pure BST had the highest absorption of 600 nm of light wavelength. Additions Fe2O3 moves highest absorption in the range of 560 nm. Fe2O3 addition was strengthening thin film sensitivity to the effects of light. In general, doping Fe2O3 10% was result the best absorbance and current-voltage of BST thin film. Electrical properties of thin films BST include dielectric, photoconductivity, and dissipation energy. Based on the current-voltage (I-V) analysis, pure BST and doped BST showed photodiode properties. Dielectric values obtained in the range from 23.32 to 243. Based on electrical conductivity data and energy dissipation, BST thin films have shown photodiode characteristics and are therefore suitable as light sensors. The image sensor in a digital camera is also a light sensor. This BST thin film has been scientifically proven to be a light sensor and also it can be applied as an image sensor. This is a novelty image sensor based on thin film Ba0.5Sr0.5TiO3.
Keyword: barium strontium titanate, thin film, photodiode, image sensor, digital camera