Judul: Model Bioekonomi Pengelolaan Sumberdaya Rajungan di Kabupaten Pangkajene dan Kepulauan Provinsi Sulawesi Selatan
Abstrak: Scarcity of fisheries resources is a one of the serious problem for international community, so, optimality, efficiency, and sustainability of the fisheries recources management is very important. The aim of this research is to analysis optimal uses of Portunus spp in Pangkajene and Kepulauan Distrik of South Sulawesi Province. Economic parameters that used in this research are price, real input cost (corected by consumer price index of South Sulawesi Province). The biology parameters that used in this research are; r (intrinsict growth), q (catch ability coefficient), K (carrying capacity) estimated by CYP (1992). Equipment of fisheries resources are set gill net, shrimp gill net, and danish saine. Result of this research with discount rate 39 percent showed that optimal biomass (X*) 578,022.64 ton, optimal harvest (h) 344,123.09 ton and optimal effort (E*) 99.303,84 per trip with economic resources rent Rp6,118.710.000.71
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Judul: Model Pengelolaan Perikanan Tangkap Berkelanjutan di Sulawesi Selatan
Abstrak: Research on sustainable fishing management in South Sulawesi was carried out in three regencies, namely Pangkep Regency, Takalar Regency and Bulukumba Regency. The aim of the research was 1) to analyze fishing resource used; 2) to determine the index value and the status of sustainable fishing; 3) to formulate the model for managing sustainable fishing; and 4) to formulated policy for managing sustainable fishing in South Sulawesi. The research was carried out from February to October 2011. The types of data used were primary as well as secondary data. The data were analyzed using the Rapfish method and the Multi Dimensional Scaling (MDS). The Rapfish method was used to find out the index of sustainable level of the fishing activities from various dimensions, whereas MDS was used to know sustainable fishing management in South Sulawesi. The results of the research showed that based on the rapfish analyses that was carried out partially on every dimension the sustainable index value for each dimension was as follows: a) Ecological dimension was 49.07, which shows less sustainable, b) Economical dimension was 53.1, which means quite sustainable, c) Social dimension 60.93, which means quite sustainable, d) Institutional and ethical dimension 46.93, which means less sustainable, e) Technological and infrastructure dimension 48.35, which means less sustainable. From the research, it can be seen that the sustainable index value of fishing in South Sulawesi is less sustainable. The optimistic scenario is the model scenario for sustainable fishing management in South Sulawesi Province, since this scenario is the most realistic model development to be carried out in an integrated manner
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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