Judul: Analisis Kelayakan Usaha Budidaya Burung Kenari (Kasus: Usaha Asoy D' Canary)
Abstrak: Birds chirping canary become the most popular pet among other domesticated birds chirping reached 424,000 head in Java and Bali is based on research conducted by Jepson and Ladle (2006). One cultivators canary in Bogor is Mr. Asep Permana who named his ranch Asoy D'Canary. The opportunity to meet the demand of a fellow hobbyist encourage businesses to conduct business. The purpose of this study was to analyze the feasibility of cultivation canary with business case studies Asoy D'Canary review of aspects of nonfinancial and financial aspects. Based on the results of the analysis showed that the nonfinancial aspects of the business Asoy D'Canary feasible, because there are no factors that inhibit the production activities Asoy D 'Canary from every aspect. While based on the analysis of the financial aspects of the cultivation of canary Asoy D 'Canary worth the effort with the value of the investment criteria of Net Present Value (NPV) of Rp. 406,175,581, Net Benefit Cost Ratio (Net B / C) of 2.45, the Internal Rate of Return (IRR) 29.11, Payback Period (PP) is 4.06. Maximum limit changes to decrease the amount of production and the increase in feed costs, respectively 44,08 and 390,64 percent.
Keyword: Bogor Agricultural University (IPB), business feasibility, Canary birds

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.
Keyword: