Judul: Pengelola Taman Margasatwa Ragunan dan Renovasi Taman Plaza Gajah
Abstrak: Taman Margasatwa Ragunan (TMR) DKI Jakarta dengan luas 135 ha terletak di kawasan Ragunan-Pasar Minggu-Jakarta Selatan memiliki fungsi sebagai sarana perlindungan dan pelestarian alam (konservasi), sarana pendidikan, sarana penelitian, serta sarana rekreasi dan apresiasi terhadap alam. Fungsi terakhir rnempakan potensi yang dirniliki oleh TMR yang perlu dikembangkan karena kawasan ini memiliki keanekaragaman satwa, baik yang berasal dari dalam maupun luar negeri yang diperagakan dengan segala keunikannya, serta keindahan alam dengan penataan tumbuhan yang sangat indah, sehingga memiliki daya tarik tersendiri untuk dikunjungi.
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Judul: Pengelolaan Lanskap Taman Margasatwa Ragunan Jakarta Selatan
Abstrak: Taman Margasatwa Ragunan (TMR) has been serviced as a conservation, education, research, and outdoor recreation functions. Meantime an evaluation related to the landscape management in TMR is needed to know either management is good and compatible or not. Therefore, the study to identify the aspects that affect the landscape management in TMR has been done by having internship activity. The data needed in this internship include the physical/biophysical aspects, management aspects, legal aspects, economic and social aspects of the TMR. Thus, it will produce a landscape management strategy for TMR. Analysis of data is performed by using the descriptive analysis, visitor comfort analysis, and SWOT analysis. The results of SWOT analysis found that there are nine point of strategies for landscape management of TMR. TMR has some shortcomings in its management. TMR needs more professional management with support from various parties. TMR is under the responsibility of the Dinas Kelautan dan Pertanian of DKI Jakarta, so that TMR needs more attention from the Government of DKI Jakarta
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Judul: Effects of Particle Shapes on Temperature Distribution under Static Ohmic Heating.
Abstrak: The ohmic heating is defined as a process wherein an alternating electrical current is passed through materials resulting in the heat generation inside the product. The excellence of ohmic heating in comparison with other thermal processing is its energy efficiency and ohmic heating could keeping nutritional as well quality attribute of food via blanching, sterilization, pasteurization, extraction, fermentation, and evaporation. Nevertheless, in ohmic heating process, the electrical conductivity of product is a key parameter. The worst case in the ohmic heating of multiphase product could be occurred when the solid phase has very lower or very high electrical conductivity than the liquid. This study aims to reveal the temperature distribution and the heating rate properties of solid and liquid phase as affected by particle shape and its orientation to the electric field. Experiments were conducted with salt solution 1% and carrot that blanched in salt solution 6%. Blanching process was conducted in order to increase the electrical conductivity of carrot close to the salt solution 1%. Ohmic heating was applied to the sample using static cell (4.90 cm diameter and 6.00 cm in length of sample area) at constant voltage gradient (40 V). Each experiment was conducted in triplicate. It was observed that the different particle shape and orientation provide the different heating rate properties. The slice particle had the fastest heating rate. Moreover the perpendicular orientation was heated faster than parallel orientation. The parallel cylindrical shape provides the slowest heating rate. This shape possibly induced the worst-case condition and could be used as sufficiency heat parameter. The heating pattern of each solid and liquid were simulated using COMSOL modeling software. The predicted temperature values were in good agreement with the experimental data with the maximum prediction error of 3 °C.
Keyword: particle orientation, particle shape, electrical conductivity, ohmic heating