Judul: Studi of integrated agroindustry and agrotourism development in Kali Bekasi watershed. Bogor district
Abstrak: Integrated of agroindustry and agrotourism is needed to develop the rural economics in Kali Bekasi watershed. The research objective was to develop a sustainable integrated system of agroindustry and agrotourism. The metodhs used for this study include analytical hierarchy process (AHP), bayes method, and exponential comparison method (ECM). The results showed that top upstream watershed of Kali Bekasi was selected as the best location for the project. Five products of agroindustry, namely rice flour, tapioca, bamboo furniture, banana chips, and ground coffee were selected as the priority products to be developed with three scenarios of tourist attractions, namely cultivation, harvesting/post-harvesting, and processing. The integration project is economically feasible with IRR of 31 percent, Net B/C of 1.95, and the total revenue from all tourist attractions of Rp. 36, 905,000.- per week. The weekly value added of agroindustry for each tourist attraction were Rp. 11.760.000.-, Rp. 12.546.000.-, and Rp. 12.563.000.-, respectively. The involvement of stakeholders including farmer associations, NGO, local youth organization (Karang Taruna), financing institution, SMEs, and local government is essentially required to implement this project with a community-based development approach.
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Judul: Sistem Penunjang Keputusan Pengembangan Agroindustri Komoditas Pertanian di Kawasan Agropolitan (Studi Kasus di Kecamatan Pangalengan dan Kertasari, Kabupaten Bandung)
Abstrak: Agricultural development is an important part of integrated economic development to create national stability, high economic development and prosperity. Successfull increasing production of agriculture stimulate and transform economicall structure in the area. Development approach based on high rate of economic growt was caused development urban area left behind left the other areas and punctuated urbanization. This problem has a negative impact on absorption of rural resources by urban area, and development funding not effectively and efficiently increase the income of people in rural area. In the agropolitan project an economic development not onlu carried out in urban area. The economic development was focused at rural area in order to create a centre of agricultural development activities i.e. : cultural practices, post harvest processing, marketing and distribution for consumer in rural area. In the feasibility for agricultural farming - agroindustry in Kertasari and Pangalengan was analyzed with Net Presesnt Value (NPV), Pay Back Period (PBP) and B/C Ratio. The result from sub model for financial feasibility analysis shows that for 10 year projects, the pasteurization fresh milk industry is feasibility to implement,since it predicts to have total net profit for Rp 445.374.872, PBP for 3,51 years and B/C Ratio for 2,02. Even though the raw materials raise for 20% or the selling prices falls for 6%, the analysis shows that the pasteurization of milk industry is still feasible to implement. BUt if the raw material raise for 21% for the selling prices falls for 7%, the analysis shows that the pasteurization of milk industry is not feasible to implement. This mean that the selling price falls is more sensitive than if the raw material raise
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Judul: Transisi Fasa Materi Hadronik ke Materi Kuark pada Inti Bintang Neutron.
Abstrak: Bintang neutron terdiri dari beberapa lapisan yang disusun oleh materi nuklir yang berbeda dengan kerapatan yang semakin tinggi ketika mendekati pusat bintang. Inti luar bintang neutron disusun oleh materi hadronik (nukleon, lepton, dan hyperon), sedangkan inti dalam bintang neutron disusun oleh kuark-kuark bebas (up, down, strange) yang saling berinteraksi. Tujuan penelitian ini adalah mempelajari bagaimana transisi dari inti luar ke inti dalam bintang neutron dengan menggunakan pendekatan RMF (Relativistic Mean Field) untuk materi hadronik dan CIDDM (Confined Isospin Density Dependent Mass) untuk materi kuark. Tekanan transisi diperoleh ketika potensial kimia barion materi hadronik dan materi kuark bernilai sama. Nilai tekanan transisi dengan parameter SU6-TM1 sekitar 87 MeV/fm3 dan diperoleh massa maksimum bintang neutron yaitu 1.92M dengan jari-jari sekitar 8.62 km. Nilai tekanan transisi dengan parameter SU6-G2 sekitar 53 MeV/fm3 dan massa maksimum bintang neutron yaitu 1.88M dengan jari-jari sekitar 8.16 km. Jenis transisi fasa adalah orde satu ditandai dengan diskontinuitas dalam kerapatan energi (adanya mixed phase). Parameter-parameter pada model nuklir yang digunakan menyebabkan perbedaan kekakuan persamaan keadaan (EOS) dari materi hadronik dan materi kuark sehingga nilai tekanan transisi dari fasa hadronik ke fasa kuark juga berbeda.
Keyword: bintang neutron, persamaan keadaan, transisi fasa