Judul: Analisis Hubungan Faktor Teknis dan Karakter Kewirausahaan dengan Kesuksesan Peternak Domba di Mitra Tani Farm Kecamatan Ciampea, Kabupaten Bogor.
Abstrak: Kecamatan Ciampea merupakan salah satu kecamatan di Kabupaten Bogor yang penduduknya banyak mengusahakan ternak domba. Sebagian besar peternak memilih menjalankan usahaternak domba secara mandiri, sementara sebagian peternak lainnya menggunakan pola usaha kemitraan dengan Mitra Tani Farm. Terdapat perbedaan antara peternak mitra dan peternak nonmitra dalam teknis peternakan domba, karakter kewirausahaan peternak, serta kesuksesan beternak. Penelitian ini mencoba melihat hubungan antara faktor teknis peternakan dan karakter kewirausahaan peternak dengan kesuksesan peternak domba. Hasil analisis korelasi Rank Spearman pada peternak mitra menunjukkan bahwa faktor teknis peternakan dan karakter kewirausahaan peternak memiliki hubungan dengan kesuksesan peternak domba. Hasil analisis korelasi Rank Spearman pada peternak nonmitra juga menunjukkan bahwa karakter kewirausahaan peternak memiliki hubungan dengan kesuksesan peternak mitra, akan tetapi faktor teknis peternakan peternak nonmitra tidak berkorelasi dengan kesuksesan peternak nonmitra.
Keyword: faktor teknis, kesuksesan peternak, karakter wirausaha

Judul: Analisis Hubungan Faktor Teknis dan Watak Kewirausahaan dengan Kesuksesan Peternak Ayam Ras Pedaging di Kecamatan Pamijahan, Kabupaten Bogor
Abstrak: The contribution of District Pamijahan for chicken supply in Bogor is the biggest one due to the large number of chicken population. Majority of the breeders run their business using a business partnership pattern to create better value than competing individually. In this pattern, both the company and the breeders should be working cooperatively. The company should ensure that the broiler farmers have an entrepreneurial characteritics to support the successful rate of this business. This study tried to look at the relationships between technical factors and entrepreneurial characters of broiler farmers influencing the success rate. And also tried to look at the relationship between entrepreneurial characters of broiler farmers influencing the business performance of broiler poultry. The results of Rank Spearman correlation analysis show that both the technical factors and entrepreneurial characters of broiler farmers had a significant correlation with the success rate. Then, the entrepreneurial characteristics such as leadership, risk takers, decision makers, and business planners could give an impact to business performance of broiler poultry in District Pamijahan.
Keyword: Bogor Agricultural University, entrepreneurship, business performance, broiler poultry

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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