Judul: Disain Kelembagaan Pengelolaan Danau Singkarak yang Berkelanjutan Berbasis Nagari.
Abstrak: Penurunan kualitas lingkungan Danau Singkarak disebabkan oleh banyaknya pelaku yang memanfaatkan danau Singkarak dengan mengambil manfaat sebesarbesarnya tanpa memperhatikan keberlanjutan Danau Singkarak. Para stakeholder tersebut melakukan kegiatan di danau dengan saling merusak danau. Kelembagaan masyarakat yang selama ini menjadi penyatu masyarakat tidak mampu lagi berfungsi secara efektif Padahal lembaga nagari tersebut telah mempunyai mekanisme kelembagaan yang dirasakan marnpu untuk mengontrol berbagai pihak untuk lebih memperhatikan kepentingan bersama.
Keyword: 

Judul: Studi Pengelolaan Daerah aliran Sungai Cidanau dengan Pengelolaan secara Terpadu
Abstrak: Pembangunan dikatakan berhasil apabila pengelolaan sumberdaya alam dapat meningkatkan kesejahteraan umat manusia dengan keseimbangan dan kelestarian alam yang dapat dijaga. Salah satu sumberdaya alam yang memerlukan penanganan yang serius adalah pengelolaan daerah aliran sungai, karena dalam beberapa tahun terakhir ini menunjukkan kecenderungan yang semakin menurun. Suatu DAS secara ekologis merupakan suatu wilayah ekosistem yang terbentuk secara alamiah, dimana air hujan meresap dan mengalir melalui sungai yang bersangkutan dan bermuara di danau atau di laut, dimana manusia dan aktivitasnya beserta sumberdaya alam berupa fauna, flora, tanah dan air berinteraksi secara lestari.
Keyword: 

Judul: Effects of Particle Shapes on Temperature Distribution under Static Ohmic Heating.
Abstrak: The ohmic heating is defined as a process wherein an alternating electrical current is passed through materials resulting in the heat generation inside the product. The excellence of ohmic heating in comparison with other thermal processing is its energy efficiency and ohmic heating could keeping nutritional as well quality attribute of food via blanching, sterilization, pasteurization, extraction, fermentation, and evaporation. Nevertheless, in ohmic heating process, the electrical conductivity of product is a key parameter. The worst case in the ohmic heating of multiphase product could be occurred when the solid phase has very lower or very high electrical conductivity than the liquid. This study aims to reveal the temperature distribution and the heating rate properties of solid and liquid phase as affected by particle shape and its orientation to the electric field. Experiments were conducted with salt solution 1% and carrot that blanched in salt solution 6%. Blanching process was conducted in order to increase the electrical conductivity of carrot close to the salt solution 1%. Ohmic heating was applied to the sample using static cell (4.90 cm diameter and 6.00 cm in length of sample area) at constant voltage gradient (40 V). Each experiment was conducted in triplicate. It was observed that the different particle shape and orientation provide the different heating rate properties. The slice particle had the fastest heating rate. Moreover the perpendicular orientation was heated faster than parallel orientation. The parallel cylindrical shape provides the slowest heating rate. This shape possibly induced the worst-case condition and could be used as sufficiency heat parameter. The heating pattern of each solid and liquid were simulated using COMSOL modeling software. The predicted temperature values were in good agreement with the experimental data with the maximum prediction error of 3 °C.
Keyword: particle orientation, particle shape, electrical conductivity, ohmic heating