Judul: Proses Pengambilan Keputusan Pembelian dan Kepuasan Konsumen Chicken Sogil (Studi Kasus Di Outlet Utama Chicken Sogil, Tangerang)
Abstrak: Chicken Sogil is one of the SMEs that offers products such as fried chicken with a large size and relatively affordable price for students. The purpose of this research was to analyze the characteristics of consumers, consumer purchasing decisions, and customer satisfaction that will have implications for the marketing mix of Chicken Sogil Outlet Center. The method of research is a descriptive analysis method, Customer Satisfaction Index (CSI), Importance Performance Analysis (IPA) and Gap Analysis. Chicken Sogil Main Outlet is located on Boulevard Raya Plantation Plot 1 W, Palm Semi, Tangerang. Consumer characteristics Chicken Sogil Main Outlet are male majority who live in Tangerang with late teens 17-25 years and worked as private employees, recent senior high school educated, unmarried status, and have a monthly income of Rp 500 000 to Rp 2 499 000. The purchase decision (unplanned purchases, sources that influence is self initiative, the visit does not necessarily (holidays and working days) and time to visit at night), and post-purchase decision (consumers are satisfied and it affects the consumer to been returned). Customer Satisfaction Index is at 73 percent that means satisfied.
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Judul: Analisis Proses Pengambilan Keputusan Pembelian dan Kepuasan Konsumen RM. Sop Ayam Pak Min Klaten Cabang Bogor
Abstrak: RM. Sop Ayam Pak Min Klaten Cabang Bogor is one of restaurant which offers traditional Javanese cuisine, especially chicken soup. The objectives of this study are to identify the characteristics of consumer, to analyze the decision buying process, to analyze the customer satisfaction level based on performance attributes of the restaurant, and to formulate alternatives marketing strategy. Data were collected by questionnaire survey to 100 respondents who were selected by convenience sampling. Descriptive analysis, Importance Performance Analysis (IPA), Customer Satisfaction Index (CSI), and gap analysis were employed in this research. The result of IPA showed some attributes to be improved, i.e. cleanness of the food and food equipment, cleanness of the restaurant, availability and cleanness of toilet and sink, availability of parking lot, and the comfort of restaurant. The result of CSI analysis showed that the level of consumer satisfaction was 75.27 percent, meaning that the consumers of RM. Sop Ayam Pak Min Klaten Cabang Bogor were satisfied.
Keyword: marketing strategy, gap analysis, IPA, CSI, characteristics of consumer

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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