Judul: Economic risk analysis of oil spill in the coastal waters of Cilacap: case study shrimp fisheries
Abstrak: Cilacap Regency is located at the Central Java has fisheries potential with high economic value and become a minapolitan area. The presence of Pertamina RU IV Cilacap at Cilacap Regency plays a significant role to economic contribution for public, both directly and indirectly. On the other hand, the activities Pertamina also create negative impacts from oil spill which has polluted the seat erritory of Cilacap:D uring period 2003-2011t,h erew ere four oil spills. Based on some researchest,h ose casesh ave impacted on the shrimp capture, effort and income of fishemren. Oil spill effects usually were not considered by decision maker and become environmental extemalities. In order to quantiff the impact, it is important to value of the economic lossed, the shrimp capture, effort decline in the area and the policy implication. The study aim to value of the economic loss impacted by oil spill using approach of bioeconomic model, producer surplus, and dynamic modeling. The result shows that the value of effort and shrimp capture decline of oil spill impact we 4.299 trip and 53,81 ton. Erconomic loss could also be seen from the decrease in at average of Rp. 98.991.990.000,0A0.s consequenceosf frnding,i ntegratedo il and gasp olicy and fisheryp olicy shouldb e directedf or the seam anagemenTt.h e integratedp olicies are economic risk assessmente, stablishmento f zoning, sign utilized of oil and gas,r estockinga reaa nd accountablec ompensationm echanism.
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Judul: Analisis Ekonomi Dampak Pencemaran di Perairan Cilacap Kabupaten Cilacap
Abstrak: The presence of Pertamha UP IV Cilacap in Cilacap Regency has significant role in increasing economic contribution for public, directly and indirectly. In other hand, the activities Pertamina also has a negative impact from gilled which has polluted the waters territory of Cilacap. During period 2006-2008, it had four accidents of tanker shipwreck. Based on some research, those cases have impacted on the shrimp capture by fishermen and decreased the function of mangrove ecosystem In order to quantify the impact, it is important to value the economic loss in the area. The study aim to value of the economic loss imported by pollution using approach of bioeconomic model and the interlinkage of mangrove and shrimp especially for spawning and nursery grounds. The results shows that the value of economic loss of shrimps caused by oil spill in the area are Rp. 879,248,019,955.97 in the year of 2000 and Rp.882,853,204,695.74 in the Year of 2004. There are strong relation between mangrove area and productivity of shrimps which increasing of mangrove area per kilometer square has improved the productivity of shrimps equal to 50.12 tons. The decline of one kilometer square of mangrove has an impact to the productivity reduction of shrimps as 42.78 tons and causing loss of gross revenue of Rp. 909,652,686.67 per years.
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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