Judul: Analysis of River Discharge by MWSWAT Model on Several Landuse at Upper Citarum Watershed, West Java.
Abstrak: Observation was conducted at Upper Citarum Watershed, West Java Province in area of 12.000 km2 The highest of landuse change was 1994 to 2005, where the forest had been change to other landuse. The result of calibrated SWAT model showed that the model was quite accurate to predict surface flow at Upper Citarum Watershed with Nash-Sutcliffe efficiency value of 0.714 and R. The purpose of this study were (1) to identify rate of landuse changes at Upper Citarum Watershed (2) to analyze river discharge by SWAT Model (3) to calibrate SWAT model with landuse 2001 (4) to validate parameters model with landuse of 1994, 1997 and 2005 (5) to analyze river discharge of calibrated SWAT model with land use of 1994, 1997 and 2001. 2 The analysis by calibrated SWAT model was done based on rainfall data in 2005 for landuse 1994, 1997 and 2001. The analysis result on landuse 1994 showed that surface flow was 112.5 mm and discharge rate was 76.7 m = 0.715. The calibration process was done by adjusting thirteen very sensitive parameters : Surlag ,MSK_Col1, MSK_Col2, MSK_X (.BSN), alpha BF, Shallst, GWQMIN, REVAPMN, GW DELAY (QW File), CHK2 (RTE File), CHNI (SUB File), EPCO (HRU File) and CN2 (.MGT File) . 3/s.The highest surface flow of 126.6 mm with discharge rate of 77.4 m3/s were obtained from analysis by calibrated SWAT model, landuse 1997 and rainfall in 2005. From analysis by calibrated SWAT model , landuse 2001 and rainfall in 2005 were obtained surface flow of 107.5 mm and discharge rate of 76.8 m3 /s
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Judul: Analysis of Cidanau River Discharge using SWAT Application.
Abstrak: management. The water demand always increases in line with the growths of population, industry and business, but the water availability is ascertained to satisfy those needs continuously. Therefore, it is necessary to analyze water availability in a specified watershed integrated with various aspects in hydrology. The objective of this study was to determine water availability in Cidanau watershed by analysing the relationship of rainfall and river discharge using the Soil and Water Assesment Tool (SWAT). The watershed is located in Banten Province and covering 22 620 ha. Input data were Digital Elevation Models, land use, and soil map. The procedures were including collection and process of climate data, trend analysis of water availability, determination of dry periods, discharge measurements, discharge analysis and calibration using SWAT. The results showed that water demand would reach 2.854 m3/s in 2020 while the estimated of average discharge was 5.282 m3/s, and the minimum discharge was 0.5 to 1 m3/s. Dry periods occurred from May to October with the average of 171 days per year. SWAT has generated 461 HRU that described the spatial condition of the whole watershed. Calculated discharges with SWAT compared to the measured discharges having The Nash-Sutcliffe Index of 0.534, and correlation coefficient of 0.68. Since this study used limited data then further studies should be continued by collecting more data of discharges and climates.
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Judul: Kista Luteal Proses Terjadinya dan Penanggulangannya Pada Sapi Perah
Abstrak: Salah satu kista pada ovari adalah kista luteal, merupakan gangguan reproduksi yang diawali oleh gagalnya sel telur untuk terovulasi, sebagai akibat ketidak seimbangan hormonal dalam tubuh. Hal ini disebabkan oleh kegagalan hipofisa dalam melepaskan hormon lutein (LH) dalam jumlah yang cukup untuk terjadinya ovulasi dan pembentukan korpus luteum. Ovum yang tidak terovulasi ini akan menetap dalam follikel, selanjutnya follikel menetap pada ovarium dan menjadi kista. Kista follikel yang tidak mendapat pengobatan selama 29 hari atau lebih akan membentuk sel - sel lutein yang akan menghasilkan hormon progesteron sehingga gejala klinis yang terlihat ialah hilangnya gejala birahi yang biasanya muncul secara periodik. ...
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