Judul: Evaluasi Kejadian Banjir Sungai Ciliwung di Jembatan Situ Duit Menggunakan Pesawat Nirawak dan Program HEC-RAS
Abstrak: Sungai Ciliwung adalah salah satu sungai di Indonesia yang rawan terhadap banjir. Studi ini menganalisa banjir di Sungai Ciliwung segmen jembatan Situ Duit, dengan menggunakan citra drone dan program HEC-RAS. Curah hujan efektif untuk Periode Ulang (Return Period) 50, 100, dan 200 tahun dihitung sebesar 79, 88, dan 97 mm. Hal ini mencakup luas daerah tangkapan sebesar 154.50 km2 dengan panjang sungai utama sebesar 35.32 km. Berdasarkan analisis debit banjir rencana menggunakan tiga metode hidrograf, debit banjir rencana untuk pemodelan banjir pada HEC-RAS yang lebih sesuai dengan kondisi di lapang adalah Nakayasu. Model ini menghasilkan Q50 sebesar 558.434 m3/dt dengan water surface elevation (WSE) sebesar +201.73m, dan untuk Q100 sebesar 629.121 m3/dt dengan WSE +202.07m, serta untuk Q200 sebesar 699.809 m3/dt dengan WSE. +202.35m. Berdasarkan hasil kajian ini, maka rekomendasi untuk mengatasi banjir antara lain normalisasi sungai, perbaikan river bank, pengelolaan drainase perkotaan, dan pengelolaan lanjutan tata guna lahan.
Keyword: Banjir, drone, HEC-RAS, situ duit, water surface elevation

Judul: Analisis Jaringan Sungai Ciliwung Hulu untuk Menentukan Hidrograf Banjir
Abstrak: Hydrograph is a graphical representation of flow with time. Hydrograph shape is determined by the rainfall input and morphometry of the watershed. Upper Ciliwung watershed contributes greatly to the floods that hit Jakarta. This study aimed to determine the characteristics of the Upper Ciliwung river networks and analyze the flood hydrograph pattern formed by the river network density. Determination of the characteristics of stream network is based on SRTM DEM 90 m x 90 m, and it is obtained that the Upper Ciliwung river has four Strahler river order with length ratio (RL) and branching ratio (Rb) that were different for each river order . Flood hydrograph was calculated using geomorphology convolution method and the simulated discharges were compared to observed discharges recorded at the Katulampa station for two rainfall events on January 16, 2013 and March 4, 2013. Based on the values of Nash-Sutcliffe coefficient obtained from the comparison of simulated discharge and observed discharges that were 0.72 for January 16, 2013 flood and 0.66 for March 4, 2013 flood, it is concluded that flood could be determined using geomorphology convolution method based on the river network density from SRTM DEM data.
Keyword: SRTM DEM data, River network characteristics, Geomorphology convolution method

Judul: Kandungan nutrisi dan kadar kolesterol daging domba garut masa menyusu (Milk Lamb), muda (lumb) dan dewasa (Mutton)
Abstrak: Sheep meat is the god source of essential amino acids and other important nutrients for human growth. However, there is a controversial myth that mutton contains cholesterol which can generate a cardiovascular disease. Sheep m& is divided into milk lamb: lamb and muttoe milk lamb is derived h m pre-weaned lamb. Lamb is derived from post-weaned lamb with age is no more than one year. Mutton is derived from adult sheep. It has been known that the younger the sheep, the lesser the lipid content of the meat And so the cholesterol content of the meat.
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