Judul: Development Analysis on Gillnet Fisheries in Karangantu Waters, Serang District - Banten Province
Abstrak: Research on gillnet fisheries in Karangantu waters of Serang District has been conducted from November 2005 to April 2006. This research was aimed to : 1) Identifying factors influencing the gillnet productivity, 2) Analysing economic performance of the gillnet fisheries and 3) Formulating alternative policies on gillnet fisheries development in the area. Data collecting was carried out trought purposive sampling of respondents, interviewing by using prepared questionnares, with using descriptive and survey method. Cobb-Douglas ( Soekartawi, 1999) method was used to determine the factors influencing the gillnet productivity. SWOT analysis ( Mulyono, 1996) and Analytical Hierarchy Process, AHP ( Saaty, 1993) were used for the formulation of the policies. Result of the research shows that from seven independent factors, the net size was indicated to be the most factors influencing the gillnet fisheries productivity. The production model of Cobb-Douglas was Y=0,31-0,041X1+0,78X2+0173X3- 0,0453+0,057X5+0,83X6-0,472X7 with its accuracy data 95% and determinant factor 83,3%. Gillnet fisheries in Karangantu is most dominantly used and show profitable performance (BEP Rp.10.915.000,-/year at the production volume of 4.461 kg/year, net B/C value 1,54, NPV Rp. 54.738.293,- and IRR 74,49%). The earnings of gillnet fishers is above Serang District regional minimum wage rate (2005). The following development strategies were recommended: 1) Controlling the number of fishing gear and fishing effort, 2) Arrangement and controlling the fishing ground (DPI) based on fishing gear and increasing the security assurance, 3) Skill improvement for the gillnet fishers, providing capital investment and marketing, 4) Increasing the size of fishing boat and gillnet size, accurate and timely statistic data are desperately needed.
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Judul: Analisis mata pencaharian alternatif nelayan gillnet di Desa Batukaras, Kecamatan Cijulang, Pangandaran, Jawa Barat
Abstrak: Fishermen in Batukaras generally using bottom set gillnets. Activities of fishing operations using the hunting system and depend on the season. The purpose of this study is to describe the gillnet fishing unit and analyze the work done by the fishermen, both fisheries and alternative livelihoods (non-fisheries). The method of this research using survey methods and data collection techniques by purposive sampling. Analysis of the data used in the form of analysis of fishing unit and financial analysis that includes the analysis of income and revenue cost ratio (R/C). The results of the analysis of fishing unit showed that gillnet construction consist of buoys, head and ground ropes, net body, neck strap, and sinker. Gillnet was operated by 2-3 fishermen using the boat which its length (L) 9.00 meters, breadth (B) of 1.50 meters, and depth (D) 1.00 meters. The work done by gillnet fishermen is fisheries effort and alternative livelihoods. Based on the financial analysis has result that average of fishermen income is Rp 693.297 per month and the value of R/C of 1.31 (R/C> 1), so fisheries effort is profitable and feasible to be developed. alternative livelihoods undertaken by the fishermen including agriculture, albizia wood cultivation, collecting firewood, collecting coconuts, used goods sellers, kiosk, and gardening cardamom. Based on the financial analysis has result that average of alternative livelihoods is Rp 445.347 per month and the value of R/C obtained from all alternative livelihoods is more than one, so the alternative livelihoods businesses profitable and feasible to be developed. This is supported by the result of the pattern of business implementation, in which all alternative livelihood done on famine and moderate, so it does not interfere the main work of the fishermen.
Keyword: Bogor Agricultural University (IPB), gillnet fishermen business, financial analysis, gillnet, Batukaras Village

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition