Judul: Analisis Performa Manajemen dan Kinerja Keuangan Penggemukan Domba Sebelum dan Saat Covid-19 (Studi Kasus di CV Mitra Tani Farm)
Abstrak: Peternakan domba merupakan sub sektor penting dalam meningkatkan perekonomian dan kesejahteraan masyarakat di Indonesia. Domba sebagai salah satu komoditas unggulan di bidang peternakan memiliki prospek yang cukup baik untuk dikembangkan. Namun, adanya pandemi Covid-19 membuat perekonomian di Indonesia menurun dan berdampak pada pengusaha peternakan yang salah satunya yaitu usaha ternak domba. Analisis kinerja keuangan diperlukan untuk keberhasilan relatif bisnis melalui analisis rasio keuangan yaitu rasio likuiditas dan profitabilitas. Penelitian dilakukan untuk mengkaji performa manajemen penggemukan dan menganalisis kinerja keuangan sebelum hingga saat pandemi Covid-19 berlangsung pada usaha penggemukan domba di CV Mitra Tani Farm Kecamatan Ciampea, Kabupaten Bogor. Hasil penelitian ini menunjukkan performa yang baik pada manajemen penggemukan domba, dilihat dari rata-rata PBBH domba yang dihasilkan 100 gram per hari. Performa kinerja keuangan pada usaha penggemukan di CV Mitra Tani Farm juga termasuk dalam kategori baik meskipun mengalami penurunan saat pandemi covid-19. Rasio keuangan yang dihasilkan di antaranya GPM, NPM, ROI, dan ROE tahun 2019 sebesar 49%, 16%, 12%, 12%, serta tahun 2020 sebesar 50%, 13%, 9%, dan 9%., Sheep farming is an important sub-sector in improving the economy and people's welfare in Indonesia. Sheep as one of the leading commodities in the livestock sector has good prospects for development. However, the existence of the Covid-19 pandemic has made the economy in Indonesia decline and has had an impact on livestock entrepreneurs, which one is of the business is sheep farming. The analysis of financial performance is necessary for the relative success of the business through financial ratio analysis, which is the ratio of liquidity and profitability. This research was conducted to examine the performance of fattening management and to analyze financial performance during the Covid-19 pandemic in the sheep fattening business at CV Mitra Tani Farm, Ciampea District, Bogor Regency. The results of this study showed good performance in sheep fattening management, in terms of the average ADG of sheep produced 100 grams per day. The financial performance of the fattening business at CV Mitra Tani Farm is also at the good category, even though it experienced a decline during the Covid-19 pandemic. The resulting financial ratios include GPM, NPM, ROI and ROE in 2019 are 49%, 16%, 12%, 12%, and in 2020 are 50%, 13%, 9%, and 9%.
Keyword: Financial performance, Management performance, Sheep farm, Fattening

Judul: Analisis Kelayakan Usaha Penggemukan Domba pada CV Mitra Tani Farm di Desa Tegal Waru Kecamatan Ciampea Kabupaten Bogor
Abstrak: CV Mitra Tani Farm is a sheep and goats fattening bussiness located in Tegal Waru Village Ciampea Subdistrict Bogor Regency. In working out the sheep fattening, MT Farm can afford ownership or partnership with farmers who currently partnering with the business units MT Farm "Rumah Kambing". The purpose of this study are: 1) to analyze the feasibility of fattening sheep CV Mitra Tani Farm viewed from the non-financial aspects such as market aspects, technical aspects, management aspects, legal aspects, social and environmental aspects, 2) to analyze the feasibility of fattening sheep CV Mitra Tani Farm if cultivated by ownership or patnership views on the financial aspects of the NPV, IRR, Net B/C, and Payback Period, and 3) to analyze the switching value of this sheep fattening CV Mitra Tani Farm if there is a decrease in variable cost of production and increase the feasibility of the venture. The results of this study show 1,040 sheeps fattening business in CV Mitra Tani Farm is feasible based on non-financial aspects and financial aspects show this bussiness which is feasible by ownership or partnership because it has appropriated the investment criteria. Switching value calculation results show the maximum limit of increasing lamb price with ownership is 6,33% and the maximum decrease in carcass percentage is 5,82%. Therefore, the maximum of increasing lamb price with partnership is 2,91% and the maximum decrease in carcass percentage is 2,67%.
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Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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