Judul: Analisis kelayakan finansial usaha kompos limbah ternak sapi perah : studi kasus di CV. Cisarua Integrated Farming
Abstrak: Kecamatan Cisarua merupakan wilayah yang memiliki jumlah populasi ternak sapi perah terbesar, juga merupakan daerah wisata dengan jumlah pengunjung terbesar di Kabupaten Bogor. Adanya kompetisi pemanfaatan lahan untuk pariwisata dan usaha peternakan sapi perah akan berpengaruh terhadap lingkungan dan masyarakat. CV Cisarua Integrated Farming (CIF) merupakan perusahaan peternakan yang memiliki populasi ternak terbesar di Kecamatan Cisarua, juga merupakan satu- satunya usaha peternakan yang mengolah limbah ternak menjadi kompos. Pengolahan limbah ternak menjadi kompos merupakan salah satu alternatif dalam pencegahan dampak negatif peternakan sapi perah terhadap lingkungan. Dalam pelaksanaan usaha kompos ini ada biaya-biaya yang harus dikeluarkan disamping manfaat dan penerimaan yang akan didapatkan. Oleh karena itu perlu dilakukan suatu analisis terhadap kelayakan usaha kompos ini secara finansial. Tujuan penelitian ini adalah mengetahui kondisi umum pengelolaan limbah ternak di kawasan peternakan Kecamatan Cisarua, Bogor, mengetahui proses pengomposan di CV CIF, dan menganalisis kelayakan finansial usaha kompos di CV CIF.
Keyword: limbah ternak, finansial

Judul: Analisis kelayakan finansial pengembangan usaha peternakan sapi perah (studi kasus di CV Cisarua Integrated Farming)
Abstrak: The objectives of this research is to analysis technical and financial aspects of dairy farm industry in Cisarua Integrated Farming, CV, and to find out the feasibility of development planning of that farm especially on technical and financial aspects. This study was conducted on June to August 2006, at Cibeureum Village, Cisarua Bogor. The evaluations were based on technical and finance aspects. The method of this research is case study and using descriptive analysis, feasibility analysis, and sensitivity analysis.
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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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