Judul: Keterlibatan Warga Pulau Pramuka Dalam Usaha Ekowisata Di Kepulauan Seribu
Abstrak: One of natural resource management form which is becoming a public attention recently is ecotourism exertion. Several nation park has developed this ecotourism activities. For instance, is “Taman Nasional Laut Kepulauan Seribu”. The utilization opportunities of the ecotourism area depends on accses and control patterns that given by national park to involve community’s participation in managing ecotourism areas, so that ecotourism can give economic and ecological benefits to community at the same time. This reaserch was review about community’s participation level in ecotourism exertion and the economic and ecoligic benefit for the community in Pramuka Island, Kepulauan Seribu.
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Judul: Coastal Ecotourism management strategies on Pramuka Island, Seribu Islands with Social Ecology Approach
Abstrak: Pulau Pramuka merupakan salah satu destinasi unggulan di Kepulauan Seribu dan memiliki potensi alam yang kaya dan menarik bagi pariwisata. Tujuan penelitian ini untuk menganalisis kesesuaian wisata, daya dukung kawasan, persepsi sosial, dan menghitung nilai ekonomi sumber daya wisata untuk merumuskan strategi pengelolaan ekowisata pantai yang efektif. Analisis data yang digunakan adalah IKW, DDK, TCM, analisis Skala Likert dan SWOT. Analisis data pantai di Pulau Pramuka termasuk kategori sesuai (IKW: 2,18) dengan nilai DDK rekreasi pantai sebesar 33 orang per hari. Analisis persepsi mengenai objek wisata pantai berada pada kategori positif (SL: 2,59). Estimasi penerimaan nilai ekonomi wisata tahun 2022 sebesar Rp. 453.830.611,00. Meskipun demikian, perbaikan pengelolaan lingkungan dan kesadaran masyarakat masih diperlukan. Saran strategi-strategi pengembangan ekowisata melalui SWOT adalah mempertahankan daya tarik dan aktivitas wisata, program edukasi masyarakat, penataan dan perawatan fasilitas rutin dan non-rutin, memelihara sumber daya alam, dan memelihara sarana transportasi. Pengelolaan ekowisata yang efektif memerlukan kolaborasi antara pemerintah, masyarakat, dan pemangku kepentingan lainnya untuk memaksimalkan potensi pariwisata sambil melestarikan lingkungan., Pramuka Island is one of the featured destinations on Seribu Islands and has a rich natural potential and attractive for tourism. The purpose of this research is to analyzing tourism suitability, area carrying capacity, social perceptions, and calculate the economic value of tourism resources to formulating coastal ecotourism management strategies on Pramuka Island. Data analysis used IKW, DDK, TCM, Likert Scale analysis and SWOT. Data analysis of the coastal on Pramuka Island is in the appropriate category (IKW: 2,18) with a coastal recreation carrying capacity value of 33 people per day. Analysis of perceptions about coastal attractions is in the positive category (SL: 2.59). Estimated revenue of tourism economic value in 2022 amounted to Rp. 453.830.611,00. Despite this, improvements in environmental management and public awareness is still needed. Suggestions for ecotourism development strategies through SWOT are maintaining tourist attractions and activities, community education programs, structuring and maintaining routine and non-routine facilities, maintaining natural resources, and maintaining transportation facilities. Effective ecotourism management requires collaboration between the government, community, and other stakeholders to maximize tourism potential while preserving the environment.
Keyword: daya dukung kawasan, ekowisata, kesesuaian wisata, strategi pengelolaan, ecotourism, carrying capacity, tourism suitability index, management strategies

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