Judul: Keragaan Mesin Penggerak Perahu Motor Tempel di PPI Pasauran, Serang, Banten
Abstrak: Outboard engine is used by the majority of fishermen in Indonesia. Therefore, it is necessary to do research about performance of outboard engine. This research is conducted in PPI Pasauran Serang Banten. The objectives of this research to identify part of outboard engine, calculate with theorist method the best speed for outboard vessel in PPI Pasauran, and to calculate with theorist average amount of fuel that needed by outboard fishing vessel per trip in PPI Pasauran. Data analysis is being done with comparative-numeric between marine outboard engine and long shaft outboard engine. Outboard engine are consist of motor, shaft of propeller, propeller, and carburetor. Best theorist speed that used by PPI Pasauran Fishermen to operate marine engine outboard are 4,59-4,72 knot and to operate long shaft outboard engine are 4,04-4,27 knot. Theorist amount of fuel that needed by marine engine outboard fishing vessel are 40-60 liter per trip and theorist amount of fuel that needed by long shaft outboard fishing vessel are 6-12 liter per trip.
Keyword: technical performance, PPI Pasauran, outboard engine

Judul: Suitability of Ship Dimensions and Engine Power Used by Small Scale Fishing Vessels at Palabuhanratu Fishing Port
Abstrak: Bahan bakar menjadi komponen penting dalam operasi penangkapan ikan di Palabuhanratu, namun tingginya harga bahan bakar menjadi beban bagi nelayan dan pemilik kapal. Untuk menghemat biaya operasional, perlu dilakukan evaluasi kesesuaian dimensi kapal perikanan dengan daya mesin yang digunakan. Tujuan penelitian ini adalah mengevaluasi kesesuaian dimensi kapal dengan daya mesin yang digunakan serta kebutuhan bahan bakar operasi penangkapan ikan. Pendekatan yang dilakukan adalah dengan membandingkan daya mesin yang digunakan dengan kebutuhan daya mesin teoritis dan antara jumlah bahan bakar yang dibawa saat trip penangkapan dengan kebutuhan bahan bakar teoritis. Hasil penelitian menunjukkan bahwa mesin yang digunakan oleh mayoritas kapal skala kecil di PPN Palabuhanratu masih terlalu besar dari kebutuhannya, kecuali pada kapal kayu yang menggunakan motor tempel 40 PK. Nelayan cenderung membawa bahan bakar lebih banyak dibandingkan dengan kebutuhan bahan bakar teoritis dengan rata-rata sebesar 62,1%. Selain karena menggunakan ukuran mesin yang lebih besar dari yang seharusnya, hal ini juga disebabkan oleh kecenderungan nelayan menyediakan BBM cadangan selama operasi penangkapan ikan., Fuel is an important component in fishing operations in Palabuhanratu, but the high price of fuel is a burden for fishermen and boat owners. To save operational costs, it is necessary to evaluate the suitability of fishing vessel dimensions with the engine power used. The purpose of this study is to evaluate the suitability of vessel dimensions with the engine power used and the fuel requirements of fishing operations. The approach taken was to compare the engine power used with the theoretical engine power requirements and between the amount of fuel carried during the fishing trip with the theoretical fuel requirements. The results showed that the engines used by the majority of small- scale vessels in PPN Palabuhanratu were still too large for their needs, except for wooden vessels using 40 PK outboard motors. Fishermen tend to carry more fuel than the theoretical fuel needs with an average of 62.1%. In addition to using a larger engine size than necessary, this is also due to the tendency of fishermen to provide spare fuel during fishing operations.
Keyword: BHP, fishing vessels, fishing vessels engine, fuel, PPN Palabuhanratu

Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4