Judul: Estimasi Sebaran Daerah Rawan Banjir Menggunakan Model HEC-RAS dan Kerugian Masyarakat di Wilayah Sub-DAS Citarik
Abstrak: Flood events in Upper Citarum watershed, especially in Citarik Subwatershed has increased sharply and it caused high enough economic loss. HECRAS model can be used to solve flood problem. Therefore, it is necessary to study Citarik Sub-watershed to identify the flood prone areas using HEC-RAS model and compute the economic loss in residential building sector in this region. Energy equation was used to compute steady flow analysis in HEC-RAS program. Flood prone areas dominantly occurred in low land areas, i.e. Rancaekek Kulon, Wangisagara, and Padamukti village that consist landuse land cover of rural, paddy,and secondary forest with low enough model accuracy. Rancaekek Kulon had the largest flooded areas which had high enough economic loss in minimum and maximum flood event.
Keyword: Bogor Agricultural University (IPB), economic loss., flood prone area, HEC-RAS Model

Judul: Estimasi Sebaran Genangan Banjir Menggunakan Model HEC-RAS di Sub-DAS Ciliwung Hilir
Abstrak: Banjir merupakan masalah tahunan yang terjadi di DKI Jakarta, khususnya pada ruas Jembatan MT. Haryono sampai Pintu Air Manggarai, hampir setiap tahun terjadi dan sangat merugikan banyak pihak. Hal tersebut diakibatkan kondisi hidrogeologi dan berkurangnya daya tampung sungai akibat sedimentasi dan erosi dari daerah hulu, dan juga perubahan pemanfaatan lahan menjadi permukiman di sepanjang bantaran Sungai Ciliwung. Penelitian ini bertujuan untuk mengestimasi lokasi, kedalaman, dan luasan sebaran genangan banjir menggunakan model HEC-RAS (1D) aliran permanen pada debit tanggal 2 Januari 2020 dan setiap periode ulang yaitu 5, 10, 25, 50, dan 100 tahun. Pemodelan wilayah banjir terdiri dari 3 tahap, yaitu pre-processing, Running HEC-RAS, dan post-processing. Hasil penelitian menunjukkan bahwa lokasi yang terdampak banjir mencakup 7 kelurahan. Genangan terluas dan memiliki potensi genangan terdalam terletak di Kelurahan Bukit Duri dengan luas genangan sekitar 22,8 ha (2,3% dari luas total kelurahan terdampak banjir) pada debit tanggal 2 Januari 2020. Luas sebaran dan kedalaman banjir meningkat masing-masing sebesar 4-8 ha dan 0,3-0,5 meter seiring bertambahnya debit periode ulang. Akurasi keluaran model hanya 30% karena penggunaan data DEM yang digunakan dalam masukan model memiliki resolusi spasial rendah.
Keyword: HEC-GeoRAS, Sentinel-1A, DEMNAS, vPeriode Ulang, Aliran Permanen

Judul: Enrichment of organic selenium, inorganic selenium and  vitamin E in quail products through its supplementation in the diet and its potency  of quail eggs as an ingredient in selenium-rich egg juice
Abstrak: This study was aimed to achieve an optimum level of combine organic selenium, inorganic selenium and vitamin E in obtaining the best production and reproduction as well as the highest level of selenium in quail eggs. This study was conducted from January to August 2008. Numbers of observed quails were 720 (360 females and 360 males). The treatments were applied when the quails were six weeks old. Nine treatment diets were: To (commercial diet), T1(0.46 ppm inorganic Se + 43.50 ppm vitamin E), T2 (0.46 ppm inorganic Se + 87.00 ppm vitamin E), T3 (0.92 ppm inorganic Se + 43.50 ppm vitamin E), T4 (0.92 ppm inorganic Se +87.00 ppm vitamin E), T5 (0.46 ppm organic Se + 43.50 ppm vitamin E), T6 (0.46 ppm organic Se + 87.00 ppm vitamin E), T7(0.92 ppm organic Se + 43.50 vitamin E) and T8(0.92 ppm organic Se + 87.00 ppm vitamin E).
Keyword: egg yolk, glutathione peroxidase ( GSH-Px), hedonic test, rank test