Judul: Rencana Bisnis Pengembangan Rimpang Kunyit dengan Pendekatan Cooperative Entrepreneur di Bogor
Abstrak: Preparation of business plan is required to simplify and clarify the illustration for entering or starting a business. The non-financial analysis of this business consist of market aspect, operational aspect, organization and human resources aspect, and risk analysis. Product of this processing business is a powdered turmeric are packed with vacuum packaging technology with sell price 228.9 USD (Rp2 610 000) in 10 kg packages. Market target of this product is overseas market, especially in Argentina. The selected enterprise of this business is cooperative where the members are from the turmeric farmers in Bogor. Net profit obtained in the first year is Rp263 205 000, Rp153 383 in the second year, and Rp193 216 in the next years. With cooperative entrepreneur approaches, farmers as a raw material supplier will get higher sell price, there is Rp9 000 in the first year and Rp12 000 in the next years.
Keyword: Bogor Agricultural University (IPB), turmeric, cooperative entrepreneur, business plan

Judul: Perencanaan bisnis pengeringan komoditas buah kapulaga dengan pendekatan cooperative entrepreneur di Bogor
Abstrak: Formulation of business plan is required to simplify and clarify the ilustration for starting a business. This business plan of cardamom is created to increase production of it in Indonesia and make farmers prosperous. This research using RRA method. The type of data are primary and secondary. They are collected by using an observation, interview and literature. Data analysis in this research are qualitative descriptive and quantitative descriptive data analysis. In marketing aspect, this business is planned to meet the needs of foreign markets. In Production aspect, this business prepares the fresh product becames intermediate product by producing 4.8 tons each month. In establishing this business, decided cooperative as enterprise, where the members of cooperative are cardamom farmers in Bogor. Financial aspects result that NPV obtained at Rp3 558 849 000, Net B/C obtained at 2.31, IRR obtained at 73 %, and payback period obtained fourty days. Economic impacts and benefits of cardamom drying business establishment are increase the economic of farmers, increase the local and regional economic, and developing regions, especially Bogor.
Keyword: cooperative entrepreneur, cardamom, business plan, Bogor Agricultural University (IPB)

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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