Judul: Optimasi Pemanfaatan Air Dengan Program Linear di Saluran Tarum Barat
Abstrak: The problems of water resources is fluctuation where there is drought in the dry season and floods during the rainy season. One effort to optimize the utilization of limited water resources while the community needs for water has increased is the management of water in the main channel with the method of linear programming (LP) that can distribute water at its optimum. So needed formulate mathematical models and optimize the water demand for agricultural, domestic and industry in West Tarum Canal. The data required in this study are the data of agricultural land area, population and industry that utilizes water from the West Tarum Canal. Water needs in agricultural research is set to 0,86 liters/sec/ha, the domestic equivalent to 120 liters/person/day or 3,6 m3/month and the industry of 350 m3/day or 10.500 m3/month. Debit is included in this optimization is the monthly average discharge West Tarum Canal. Optimization is done by determining the proportion of the allocation of water resources, that is for domestic 26,3%, agriculture 71%, and the rest of the industry at 2,7%. Based on the results of the optimization of agricultural land area, population, and the industry is 12.486 ha, 6.560.099 peoples, and 231 industries and with revenues amounting to IDR 295.714.500,00.
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Judul: Model of intersectoral water allocation in Jatiluhur irrigation area: dynamic optimization approach
Abstrak: Rapid population growth, development of urban sprawl, and increasing food demand, have increased pressure on irrigation, domestic and industrial water demand. As such, the stock of water resources has become limited, not only in terms of quantity and quality, equity and continuity of water distribution, but also efficiency of water use. The scarcity of this resource has intensely increased intersectoral water demand, in downstream area, so that a model is needed to solve this conflicting and competing water demand problem. The objectives of this research are: (1) to conceptualize and develop a water allocation model in Jatiluhur’s dams, especially in Tarum Barat area and compare it with actual allocation which is undertaken by Perum Jasa Tirta II, (2) to evaluate the performance of technical and economic variables toward the dynamic optimum allocation, and (3) to evaluate the effect of its dynamic optimum allocation toward the reservoir’s stock of water.
Keyword: Competition, Scarce, Allocation, Water, Resevoir, Dam, Optimization, DAS Citarum, Jawa Barat, Pengelolaan Sumberdaya air

Judul: Performa kecoa madagaskar (Gromphadorhina portentosa) pada tipe tempat sembunyi yang berbeda
Abstrak: Madagascar cockroaches come from Madagascar Island in the southest of Africa Beach. This cockroaches is a giant cockroaches in the world and as big as a giant beetle that called as "giant cockroaches". Madagascar cockroaches is a giant cockroaches and have a different character with another cockroaches, that is big size and types that it make it looks like beetle, fizz, doesn't bite, doesn't have wings and outdorless so that these cockroaches harmless for human and can be keep as pets that quite popular all over the world because of it's unique.
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