Judul: Analisis Kepuasan Konsumen Ba’so Seuseupan Bantarjati Bogor
Abstrak: Bakso is one of the popular food which is liked by Indonesian people. One of the successful Bakso restaurants in Bogor is Ba’so Seuseupan Bantarjati. This restaurant is located in culinary area that has many similar restaurants and other foods restaurants as well. High competition and fluctuated number of customer caused management of Ba’so Seuseupan Bantarjati has to know the level of consumer satisfaction. The objective of this study is to analyze the characteristics of consumer, the consumer buying decision process and customer satisfaction level of Ba’so Seuseupan Bantarjati. Data were collected by questionnaire survey to 100 respondents who were selected by convenience sampling. Descriptive analysis, IPA and CSI were employed in this study. The result of IPA showed some attributes to be improved, i.e. cleanness of the food stall, cleanness of food equipment, avaibility and cleanness of toilet, avaibility of parking lot as well as avaibility and cleanness of mosque. The result of CSI analysis showed that the level of consumer satisfaction was 71 percent, meaning that Ba’so Seuseupan Bantarjati consumers were satisfied.
Keyword: CSI, IPA, buying process, characteristics of consumer, bakso

Judul: Analisis Kepuasan dan Loyalitas Konsumen pada Bakso Boedjangan Dramaga.
Abstrak: Bakso Boedjangan Dramaga merupakan salah satu warung bakso yang memiliki konsep restoran kekinian dan memiliki inovasi varian menu bakso andalan. Penelitian ini bertujuan untuk menganalisis karakteristik konsumen, proses keputusan pembelian konsumen, tingkat kepuasan dan loyalitas konsumen. Metode pengumpulan data menggunakan metode survei dengan penyebaran kuesioner kepada 100 responden dan menggunakan teknik non probability secara purposive. Metode pengolahan data menggunakan teknik analisis deskriptif, CSI, IPA dan NPS. Hasil analisis CSI menunjukkan bahwa nilai yang diperoleh sebesar 75.70 persen yang berarti secara keseluruhan konsumen merasa puas terhadap Bakso Boedjangan Dramaga. Hasil Analisis IPA menunjukkan bahwa atribut yang menjadi prioritas untuk dilakukan perbaikan adalah harga bakso. Hasil analisis NPS menunjakan bahwa nilai yang diperoleh -22 persen yang berarti konsumen Bakso Boedjangan tidak loyal.
Keyword: bakso, kepuasan konsumen, loyalitas konsumen, CSI, IPA, NPS

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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