Judul: Potensi Rumah Potong Hewan Pemerintah Sebagai Penyedia Daging Sapi Di Wilayah Bogor.
Abstrak: Bogor is the one important city that have a high demand of meat in jabodetabek area. Bogor is divided to districts and the city which have population 5 202 097 and 1 019 013 resvectively. Capita consumption of meat are 3.65 grams day-1 and 22.08 grams day-1. This research was conducted by survey , then analyzed by descriptive and counted the location quotient ( LQ ). The LQ value of Bubulak slaughter house was 4.26 and Cibinong slaughter house was 3.11 which greater than one (LQ>1), this data showed a second slaughter house were the base of meat production in Bogor. The LQ value of Galuga slaughter house (0.62) and Jonggol slaughter house (0.74) less than one (LQ<1), that means both as a second slaughter house with non base meat production in the Bogor area. Meat production of each slaughter house of Bubulak, Cibinong, Galuga, and Jonggol distributed in Bogor area with each production are 5 250.99 kg day-1, 3 827.25 kg day-1, 765.45 kg day-1, and 918.54 kg day-1. The total daily demand of meat in Bogor District was 19 003.26 kg and the Bogor City was 22 369.48 kg. However, the meat production of government slaughter house distributed to Bogor area is 10 762.32 kg day-1. The government slaughter house could have self sufficient as the potential meat provider in Bogor with the value of slaughter is optimized of slaughter capacity.
Keyword: demand meat, goverment sloughter house, location quotient, potensial meat, provider, production meat

Judul: Ketersediaan Limbah Tanaman Pangan untuk Mendukung Pengembangan Populasi Sapi Perah di Kabupaten Bogor
Abstrak: Indonesia merupakan Negara agraris yang kaya akan sumberdaya alam dan sumberdaya manusia. Hasil produk tanaman pangan yang tinggi akan menghasilkan limbah tanaman pangan yang berlimpah. Limbah tanaman pangan dapat menjadi pakan yang potensial. Penelitian ini dilaksanakan di tiga kecamatan (Kecamatan Cibungbulang, Cisarua dan Jonggol) yang mewakili seluruh kecamatan di Bogor, Jawa Barat. Penelitian ini difokuskan pada limbah tanaman pangan yang biasa digunakan oleh peternak, seperti jerami padi, limbah jagung dan limbah ubikayu. Tujuan penelitian ini adalah menentukan kecamatan yang potensial untuk pengembangan ternak sapi perah dengan indeks konsentrasi produksi pakan (IKPP), menghitung produksi limbah tanaman pangan berdasarkan kuantitas dan kualitas sebagai pakan ternak, dan menghitung pengembangan sapi perah di kecamatan terpilih di Kabupaten Bogor. Penelitian ini dilakukan dengan survei lapang serta mengumpulkan data primer dan sekunder dengan metode purposive sampling. Data yang diperoleh dianalisis secara deskriptif. Hasil penelitian menunjukkan sebelas kecamatan dari dua belas kecamatan terpilih (Kecamatan Jonggol, Sukamakmur, Pamijahan, Tanjungsari, Cariu, Cigudeg, Sukajaya, Jasinga, Leuwiliang, Rumpin, Cibungbulang dan Cisarua) yang potensial berdasarkan metode IKPP yaitu Kecamatan Jonggol, Sukamakmur, Pamijahan, Tanjungsari, Cariu, Cigudeg, Sukajaya, Jasinga, Leuwiliang, Rumpin, dan Cibungbulang. Produksi limbah tanaman pangan berdasarkan kuantitas dan kualitas di dua belas kecamatan terpilih untuk bahan kering 445 877.30 ton tahun-1, protein kasar 18966.21 ton tahun-1, dan TDN 171 774.29 ton tahun-1 sebagai sumber hijauan. Pengembangan populasi sapi perah di dua belas kecamatan terpilih 7.21 kali dari populasi awal berdasarkan bahan kering 125 089.98 ST, protein kasar 48 028.60 ST dan TDN 69 651.96 ST.
Keyword: kapasitas tampung, limbah tanaman pangan, sapi perah

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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