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 Kepuasan Konsumen terhadap Kualitas Pelayanan di Chicken Corner 7 Tangerang
Abstrak: Chicken Corner 7 merupakan salah satu waralaba lokal yang menawarkan produk ayam goreng dengan ukuran besar dan harga yang relatif terjangkau. Tujuan dari penelitian ini adalah untuk menganalisis karakteristik konsumen, keputusan pembelian konsumen, dan kepuasan pelanggan terhadap kualitas pelayanan pada Chicken Corner 7. Kuesioner survei dilakukan pada bulan Maret 2017 dengan jumlah responden seratus orang. Metode penelitian menggunakan analisis deskriptif, uji validitas, uji reliabilitas, Customer Satisfaction Index (CSI), dan Importance Performance Analysis (IPA). Chicken Corner 7 terletak di Jalan Ir. H. Juanda, Kota Tangerang. Karakteristik konsumen Chicken Corner 7 adalah mayoritas laki-laki, tinggal di Tangerang, usia 18-25 tahun, bekerja sebagai pegawai swasta, pendidikan terakhir SMA, tidak menikah, dan pengeluaran per bulan Rp3 500 000 ke atas. Keputusan pembelian tidak direncanakan, sumber informasi melalui papan nama, frekuensi kunjungan satu minggu sekali, waktu berkunjung pada siang dan sore hari. Hasil CSI berada pada level 78.87 persen yang berarti sangat puas. Hasil IPA menunjukkan beberapa atribut untuk diperbaiki yaitu ketersediaan wastafel dan toilet yang bersih, penyajian pesanan cepat, tidak membiarkan pelanggan menunggu dan berdiri lama ketika tempat penuh, serta sopan dan ramah dalam bersikap dan berkomunikasi.
Keyword: karakteristik konsumen, keputusan pembelian, waralaba

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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