Judul: Analisis Kelayakan Pengembangan Usaha Ikan Hias Black Ghost (Afteronotus albifrons) pada Vizan Farm di Kecamatam Bojongsari Kota Depok
Abstrak: Vizan Farm is one of the ornamental fish producing farms of Black Ghost at Bojongsari District, Depok City which has conducted its business development. This study aimed at analyzing the development feasibility of ornamental fish business of Black Ghost viewed from the non-financial aspects and financial aspects, and at finding out its sensitivity value. Based on the analysis on the non-financial aspects, it can be said that the business of ornamental fish of Black Ghost at Vizan Farm is feasible to run. The results of the financial analysis before and after the business development of ornamental fish Black Ghost at Vizan Farm showed that this business is feasible, where before the development, the business obtained an NPV value of Rp 159 430 261.00, an IRR of 20.73 percent, Net B/C at 2.20, and payback period for 4 years and 11 months. Meanwhile, after the development, the businesses obtained an NPV of Rp 301 325 943.00, an IRR of 26.65 percent, Net B/C of 2.27, and payback period of 4 years and 8 months. The result of the sensitivity analysis on the condition when the feed price increases by 50 percent showed that the business generated an NPV of Rp 113 509 319.00, an IRR of 20.75 percent, Net B/C of 1.84, and Payback Period of 6 years and 5 months. Furthermore, when the production decreases by 20 percent, the business is able to generate an NPV of 18 361 126.00, an IRR of 8.60 percent, Net B/C of 1.13, and Payback Period of 9 years 8 months.
Keyword: Payback Period., Net B/C, IRR, NPV, Financial Analysis, Vizan Farm

Judul: Analisis kelayakan pengembangan usaha ikan hias air tawar Iwan Wahana Fish Farm Kota Bekasi
Abstrak: Ornamental fish is one of the new commodity that still require more intensive development efforts in Indonesia. Iwan Wahana Fish Farm as a business entity engaged in the field of cultivation of freshwater ornamental fish have not been able to meet the demand against the increasing every year, so it will be done to expand the scale of business development. The purpose of this research is to analyze the feasibility of the development of freshwater ornamental fish Iwan Wahana Fish Farm in Bekasi based on market aspects, technical aspects, and financial aspects. The analysis tool used are the TOWS analysis, EOQ method, NPV, Net B / C, IRR, Payback Period, and Switching Value Sensitivity analysis supported by Microsoft Office Excel software. As a result, market aspects and technical aspects of business development declared eligible to run. On the financial aspects of business development at Iwan WahanaFish Farm feasible with NPV of Rp 377 989 000; Net B / C of 2.29; IRR of 46% and payback period for 1.5 years. The results of the sensitivity analysis calculation of switching values obtained maximum changes decrease the survival rate of freshwater ornamental fish by 48.98%, the maximum change in market demand decline of 24.82%, and the maximum change for the increase in raw material costs amounted to 51.55%.
Keyword: Bogor Agricultural University, freshwater ornamental fish, feasibility analysis

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