Judul: Analisis Faktor dan Proses Pengambilan Keputusan Pembelian Sayuran Organik di Yogya Bogor Junction
Abstrak: Healthy lifestyles be sensitive issues in the food industry. People realize that the use of chemicals non-natural, in agricultural production turns out to have a negative impact on human health and the environment. A factor of health being one of the reasons why consumers, consume organic food one of them by ingestion of organic vegetables. Research aimed at analyzing characteristic of consumers, the process of a decision to buy organic vegetables and factors that affects consumers in buying vegetables organic in yogya bogor junction. A method of a base on this research using descriptive analysis and factor analysis. Based on research, in the process of a decision to buy organic vegetables consumers motivated because it has rich benefit and not have to worry about the chemical content. A source of information obtained from relation good friends and family. An attribute that considered namely freshness organic vegetables. Purchase in a planned and most consumers after consume organic vegetables in yogya bogor junction satisfied. There are five groups of factors in the purchasing decision of organic vegetables namely physical factors, environmental factor, individual background factors, the appeal of the product and external factors
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Judul: Analisis Proses Keputusan Pembelian dan Kepuasan Konsumen Sayuran Organik Di Yogya Bogor Junction
Abstrak: Tujuan penelitian ini adalah (1) mengidentifikasi karakteristik konsumen sayuran organik di Yogya Bogor Junction (2) menganalisis proses keputusan pembelian sayuran organik (3) menganalisis kepuasan konsumen terhadap atribut sayuran organik. Penelitian dilaksanakan di Kota Bogor tepatnya di Yogya Bogor Junction yang terletak di Jl. Sawojajar Kota Bogor. Waktu penelitian dilakukan selama bulan Maret hingga Juni 2011. Fokus responden dalam penelitian ini adalah ibu rumah tangga. Penelitian ini menggunakan analisis deskriptif, Importance Performance Analysis (IPA) dan Customer Satisfaction Index (CSI). Responden yang mengkonsumsi sayuran organik memiliki karakteristik konsumen yang beragam. Kebanyakan berusia 24-30 tahun. Jenis pekerjaan dari responden yaitu sebagai pegawai swasta dengan pendapatan rata-rata perbulan yaitu Rp 3.500.000-Rp 4.500.000 dan pendidikan terakhirnya adalah sarjana. Pada tahap proses keputusan pembelian motivasi responden mengkonsumsi sayuran organik adalah sebagai salah satu pemenuhan pangan yang sangat bermanfaat bagi tubuh yaitu sebagai penembah gizi dan aneka vitamin yang berguna bagi tubuh. Atribut yang dipertimbangkan dari sayuran organik yaitu kesegaran sayuran organik. Sebagian besar responden Setelah mengkonsumsi sayuran organik merasakan puas dan responden tidak kesulitan dalam mendapatkan atau membeli sayuran organik. Akan tetapi jika sayuran organik yang diinginkan responden tidak tersedia, maka responden memilih mencari lokasi pembelian sayuran organik di tempat lain yaitu di Giant Botani Square. Secara keseluruhan responden mengkonsumsi sayuran organik sudah merasa puas yaitu dengan nilai CSI nya 74.26 persen. Atribut-atribut yang menjadi prioritas utama dan kinerjanya harus ditingkatkan berdasarkan analisis importance-performance yaitu atribut ketersediaan dan promosi sayuran organik. Atribut yang harus dipertahankan oleh pihak Yogya Bogor Junction yaitu kesegaran sayuran organik dan daya tahan sayuran organik.
Keyword: Importance Performance Analysis, Customer Satisfaction Index

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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