Judul: Analisis Kelayakan Usaha Peternakan Ayam Broiler di Desa Lulut Kecamatan Klapanunggal Kabupaten Bogor
Abstrak: Usaha peternakan yang banyak diminati adalah peternakan ayam broiler karena memiliki permintaan yang tinggi. Kabupaten Bogor merupakan salah satu daerah sentra produksi daging ayam broiler di Jawa Barat. Penelitian ini bertujuan untuk (1) menganalisis kelayakan usaha ternak ayam broiler ditinjau dari aspek non finansial seperti aspek pasar, aspek teknis, aspek manajemen dan hukum, aspek sosial dan budaya serta aspek lingkungan (2) menganalisis kelayakan usaha ternak ayam broiler ditinjau dari aspek finansial (3) menganalisis tingkat kepekaan (sensitivitas) kelayakan usaha peternakan ayam broiler. Penelitian ini dilakukan pada bulan November sampai dengan Desember 2015 dengan menggunakan data primer dan sekunder. Data primer diperoleh dari wawancara langsung dengan pemilik peternakan dan data sekunder melalui internet dan literatur yang relevan. Adapun analisis yang digunakan yaitu analisis kualitatif dan kuantitatif, dimana analisis kualitatif dilakukan secara deskriptif menggambarkan sistem usaha dan aspek nonfinansial serta analisis kuantitatif yang digunakan yaitu analisis kelayakan finansial. Berdasarkan hasil analisis aspek non finansial dan finansial usaha peternakan ayam broiler layak untuk dilanjutkan, karena dilihat dari nilai NPV sebesar Rp632 149 173, Net B/C sebesar 3.23, IRR sebesar 71.68 persen dan PP sebesar 2.8 tahun, dengan discount rate 6.5 persen. Hasil analisis switching value menunjukkan usaha peternakan ayam broiler sangat sensitif terhadap kenaikan harga pakan sebesar 15.53 persen penurunan harga jual sebesar 47.42 persen, sedangkan kenaikan harga DOC sebesar 65.22 persen pada peternakan ayam broiler ini tidak sensitif.
Keyword: kelayakan, broiler, switching value

Judul: Analisis Kelayakan Pengembangan Usaha Peternakan Ayam Broiler Di Desa Cihideung Udik, Kabupaten Bogor
Abstrak: Broiler chicken husbandry is the most favorited kind of husbandry because it has high level of demand of its product. Bogor is one of regions in West Java that has high demand of chicken husbandry product. The study aims to ( 1 ) analyze feasibility enterprise development of chicken farmer broiler look from non financial aspects as aspects market, the technical aspects, aspect management and legal, aspect social and cultural and environmental aspects ( 2 ) analyze feasibility enterprise development of chicken farmer broiler look from financial aspects ( 3 ) analyzed levels of sensibility (switching value) feasibility enterprise development of chicken farmer broiler. Based on the analysis aspect financial and non financial, business of chicken broiler has worthy to be developed. Because it seen from Net Present Value (NPV) was IDR6 058 082 368, net B/C 2.84%, IRR 39.26%, and Payback Period 3.2 years. The Discount Rate was 6%. Switching Value analysis showed that the increasing price of feed price by 10.11% and decreasing price of selling chicken by 6.31% were still feasible. Chicken broiler farm more sensitive to decrease price of selling chicken than increasing price of feed.
Keyword: Switching Value ., PP, IRR, Net B/C, NPV

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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