Judul: Analisis Pengendalian Persediaan Bahan Baku Kebab Original Pada stockist PT Kebab Turki Baba Rafi Cabang Bogor.
Abstrak: Kebab Turki Baba Rafi is one of the frenchise with high usage of raw materials. The raw materials used must always be fresh and maintained its quality to increase the order for every day. Therefore , its necessary the optimal inventories control to improve profit and efficiency cost every year. The purpose of this study is to analys the inventory control’s system in PT Kebab Turki Baba Rafi, knowing the optimal of inventory control in raws material at PT Kebab Turki Baba Rafi using analysis ABC, determines the the value of total inventory efficiency cost using Economic Order Quantity (EOQ) at PT Kebab Turki Baba Rafi. From the ABC analysis results, Original Kebab has 2 raw material with high usage value, its daging 4kg and tortilla besar (torbes). Comparison of the results of total cost of inventory, company using in savings obtained EOQ calculations Rp 208.600 per year for daging 4kg and tortilla besar has obtain the amount of savings as much as Rp 1.100 per year. Then the total saving obtained by the company as much as rp.209.700 during per year.
Keyword: Kebab Turki Baba Rafi, EOQ Methods, ABC Analysis

Judul: Optimalisasi persediaan bahan baku produk daging sapi olahan (studi kasus pada unit usaha badranaya PT Tirta Ratna, Bandung)
Abstrak: The aims of this research are to analyze delivery system and providing control of beef materials which was applied by Badranaya Corporation Unit and also to ascertain an optimal providing wntrol method of Economics Order Quantity (EOQ) and Single ~e&d (sP). The &ult of this research shows that Badranaya Corporation Unit has not applied an optimal providing control method. Beef material delivery was not b& on the plan of corporation needs. It was because of the corporation did not make the plan to produce so that the order often much higher or lower than the needs. Based on EOQ and SP method, the amount of beef material order used to get close to the using. During January to April 2006, the calculation result for cows tongue and beef leg quarter shows that EOQ method is the alternative method which gives the highest cost retrenchment The total of providing cost retrenchment for cows tongue material is Rp 467.375,41 or 40, 8% and for beef leg quarter is Rp 10.700,03 or 45% h m total .providing cost of corporation. The highest wst retrenchment for sausage is Rp 2.61729 or 0,82% if the corporation applies SP method. Btit EOQ also SP method will give cost waste for chop material which are 16,19% and 20,84%. It is because of the corporation often does purchasing under the needs and makes average providing and also cost providing becomes low.
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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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