Judul: Rancangan Bangunan Hidrolika pada Jaringan Irigasi Pedesaan di Desa Pekiringan Alit, Kecamatan Kajen-Pekalongan
Abstrak: The objective of the research is to design the hydraulics structures on rural irrigation scheme, which include: analysis of irrigation water sufficiency, design of rural irrigation scheme layout, design of pump station, design of open channel, and design of diversion box. The study was conducted in the village of Pekiringan Alit, District Kajen, Pekalongan, Central Java, with two scenarios, i.e. the first scenario with cropping pattern of sugarcane and the second scenario with cropping pattern of corn-beans-melon-tomatoes. Based on analysis, the irrigation water requirements unit of scenario 1 is 0.53 l/dt/ha while for scenario 2 is 0.42 l/dt/ha. The irrigation water requirements can be fulfilled from Sragi River with minimum flow of 537 l/sec. Layout of irrigation scheme consists of 4 irrigated blocks with a total area of 27.15 hectares. Pump station was designed with a capacity of 17.99 l/sec and total dynamic head (TDH) of 14.11 meters. The irrigation water delivery system was designed with three options, i.e. trapezoidal earth channel with a bottom width of 0.3 meters and top width of 0.9 meter, rectangular lining channel with a bottom width and top width of 0.3 meters, and piping channel with a diameter of 4 inches, 3 inches, and 2 inches. The diversion box was designed with dimensions of 0.8 meters height, 0.5 meters width, 0.6 meters length.
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Judul: Rancangan Teknik Bangunan Irigasi Pedesaan di Desa Petir dan Desa Neglasari Kabupaten Bogor
Abstrak: The availability of water in rural irrigation schemes is a main factor have to be considered in managing irrigation water. This study was conducted in Neglasari village and Petir village. In Neglasari village, the problem was irrigation water shortage during dry season because water from the river did not flow into intake channel, whereas the problems in Petir village were unstable channel and the dam height was not sufficient. The purpose of this study was to prepare engineering design of dam in Neglasari village, and diversion box and dam in Petir Village. The engineering design of dam in the Neglasari village has been prepared with the construction of gabions, reinforced with concrete columns and the total construction cost of 17,363,000 rupiahs. The engineering design of diversion box in Petir village has been prepared with masonry construction and the total construction cost of 4,730,000 rupiahs. The engineering design of dam in Petir village has also been prepared with the construction of gabions and the total contruction cost of 7,000,000 rupiahs. The participation of farmers is the important factor for the success of rural irrigation schemes management
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Judul: Karakteristik Protein Mioglobin dan Parvalbumin pada Ikan Tongkol Komo (Euthynnus affinis).
Abstrak: Ikan tongkol mengandung dua jenis daging, yaitu daging merah dan daging putih. Dua jenis daging memiliki kandungan mioglobin dan parvalbumin yang berbeda. Penelitian bertujuan menentukan karakteristik protein mioglobin dan parvalbumin pada daging putih dan daging merah ikan tongkol komo (Euthynnus affinis). Kandungan mioglobin dianalisis secara kuantitatif menggunakan spektrofotometri, sedangkan parvalbumin diidentifikasi menggunakan Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis (SDS-PAGE). Kandungan mioglobin daging merah lebih tinggi dibanding daging putih. Daging merah bagian tengah memiliki kandungan mioglobin tertinggi. Analisis spektrofotometri mengindikasikan bahwa jenis mioglobin yang dominan adalah metmioglobin. Proses pemanasan dapat merusak protein mioglobin. Kandungan parvalbumin ditemukan pada daging putih dan hanya terdeteksi pada bagian depan. Proses pemanasan tidak dapat merusak protein parvalbumin.
Keyword: daging merah, daging putih, metmioglobin