Judul: Analisis Karakteristik Aliran dalam Boks Bagi pada Sistem Irigasi Perpipaan
Abstrak: Irrigation with closed distribution system using pipes is possible to sedimentation in the pipes, therefore is necessary to design piping system so sedimentation in the pipes can be as minimal as possible. Division box in the tertiary irrigation network is very important in addition to divide discharge proportional to the field also as a sediment control that sedimentation in the pipe to a minimum. The main objective of this research is to design division box in the PVC pipe for irrigated paddy field, so that the results will be: (1) Flow characteristics Analysis in the division box for the most optimal pipeline so that the sedimentation in the pipe to a minimum; (2) Simulation to analyze the flow of sediment and flow characteristics in the piping irrigated using surface water as a source of irrigation water, (3) the relation between the design parameters of division box with the flow based on the diameter of the inlet pipe and outlet pipes. Durst (2008 ) explains that the similarity theory of dimensional analysis is that if the differential equations that describe the flow of the problem is unknown . It is important that dimensional analysis can also be used when the physical relation between the amount of which is not known at all . Division box built in the tertiary canals and the quarter in order to divide the irrigation water to all tertiary and quarter. Models of division box was made to simulate the flow in PVC pipe and division box in the same pipeline so that the quaternary as happened in the real situation on the field . In this research made the model of division box for irrigation piping systems with the circular cross section. Analysis of flow characteristics in the division box using the method of dimensional analysis. At the phase of dimensional analysis to determine the flow characteristics in PVC pipes and division box with choosing the basic unit of the relation between derivative quantities. The graphs of the data model and the simulation results in the field validation results that can be used as a reference in designing the division box in the irrigation network that uses PVC pipe for piping irrigated. Results of this graph can be used to determine the design of division box on tertiary irrigation network optimized so as to minimize the occurrence of sedimentation in the PVC pipe.
Keyword: division box, pipeline irrigation system, flow characteristics, dimensional analysis

Judul: Perencanaan dan Perancangan Saluran Irigasi Terbuka di Balai Besar Penelitian Tanaman Padi (Subang, Jawa Barat).
Abstrak: Irrigation techniques provides water with the right conditions, the right space, and timely in a way that is effective, economical, and efficient. Planning and design of irrigation system refers to the contour of the land and the flow pattern of the system is needed. So it will impact in increase of productivity and quality of the harvest quality. Placement of irrigation channel adjoining the location of the farm, intended to have a higher elevation with farmland. The planning of secondary irrigation channels along the branches 4196.47 m with tertiary channels have an average 400-800 m length. With an area of 343.89 ha of agricultural land in total consisting of zone 1, 2, and three. Irrigation water requirements by using an open channel with trapezoidal cross-section and use the design method of Strickler required discharge of 0.6043 m3 / s with a coefficient of crop water 1,46 l / s / ha. The results of channel design successfully done according to the appendix 3, in cross section two secondary channels are used to accommodate the irrigation discharge of 0.6043 m3 / s, k = 35, m = 1, n = 2, b = 1,142 m, y = 0,571 m, v = 0,6 m / s, and I = 0,0012. Based on the results of modeling using HEC-RAS software 4.1 on irrigation channels can be said to be safe, and able to accommodate discharge of irrigation according to the needs of 0.6043 m3 / sec with input value n (manning roughness) of 0.025 and a efficiency of secondary channel 90% and 95% of tertiary channels.
Keyword: design, planning, irrigation, HEC-RAS

Judul: Berat Badan Dan Morfometrik Leopard Gecko (Eublepharis Macularius) Pada Berbagai Umur
Abstrak: Leopard gecko (Eublepharis macularius) adalah jenis tokek yang hidup di permukaan tanah dan aktif saat fajar dan senja. Studi morfometrik dalam leopard gecko masih terbatas. Tujuan dari penelitian ini adalah untuk mengukur dan membandingkan berat badan dan morfometrik leopard gecko dari berbagai umur. Sebanyak 14 ekor leopard gecko (3 ekor jantan dan 11 ekor betina) dikelompokkan menjadi empat kelompok: 0-6 bulan, 7-12 bulan, 13-18 bulan, dan 19-24 bulan. Pengukuran dilakukan setiap bulan selama tiga bulan sehingga hewan dapat ditimbang dan diukur lebih dari sekali. Selama 90 hari pascatetas, pengukuran berat dan panjang dilakukan setiap hari, dua hari, atau setiap minggu tergantung dengan tingkat pertumbuhan. Hasil penelitian menunjukkan bahwa kelompok umur 0-6 bulan memiliki berat badan 10.69±5.68 g dan total panjang 12.79±3.68 cm; 7-12 bulan memiliki berat badan 16.57±4.52 g dan total panjang 16.7±1.23 cm; 13-18 bulan memiliki berat badan 21.12±3.13 g dan total panjang 19.4±1.15 cm; dan 19-24 bulan memiliki berat badan 27.9±1.53 g dan total panjang 20.8±1.51 cm. Dapat disimpulkan pada leopard gecko kelompok umur 0- 6 bulan memiliki pertumbuhan yang lebih bervariasi pada berat badan, panjang kepala, panjang kaki belakang, dan panjang ekor dibandingkan dengan yang lain.
Keyword: berat badan, Eublepharis macularius, morfometrik, tokek