This study aims to determine the engine performance and capacity of the elephant grass chopping machine on animal feed chopping machines by varying the number of blades and their speed. In this study, there were 2, 3, and 4 blades. The speeds are 750 rpm, 850 rpm, and 1100 rpm. The results of the study showed variations using 4 blades resulted in the highest chop, which was 93.7 kg/hour. Variat…
The dominant electric stove used today has a weakness, namely the heating element in the form of a wire. For this reason, it is necessary to make an effort to increase the performance of the electric stove, the effort made is to add supporting equipment in the form of reflectors and Fresnel lenses on the solar cell. the added supporting equipment serves to increase the voltage and current recei…
Composite technology continues to develop with the use of natural fibers (Natural Fiber). One of the natural fibers that are quite abundant in Indonesia is sugarcane fiber. This study aims to make a composite board made from sugarcane fiber which is treated with alkali and bonded by polyester resin. In this study, the alkali variations were treated with values of 0%, 10%, 20% and 30% and the co…
Solar energy is used as a potential alternative energy source, especially seen from the source that emits energy in very large quantities and takes a long time. Solar energy is converted into electrical energy using solar panels. The performance of the solar panel depends on the surface temperature of the panel because the semi-conductor material in the panel is very sensitive to temperature ch…
Indonesia is one of the largest palm oil producers in the world, in processing one tonne of palm oil is able to produce solid waste in the form of empty palm oil bunches by 23%. Fiber from oil palm empty fruit bunches is a solid waste that has been widely used and many studies have been conducted regarding its application to composite materials. Many studies have been carried out in utilizin…
Well AN-85 Field A is a vertical oil well with a permeability value of 0.02 mD and a porosity value of 10% and is a Shaly Sand (tight oil formation) reservoir type. Due to the small natural permeability of the rock, hydraulic fracturing is carried out in this well to increase the permeability and conductivity value of the AN-85 well. To determine the appropriate type of fracturing fluid and pro…
Memang tidak setiap orang dapat dengan mudah memahami karya sastra. Bahkan ada orang yang tidak merasa mendapatkan apa-apa setelah membaca karya sastra. Hal ini memang sangat bergantung pada tingkat apresiasi mereka. Memahami unsur intrinsik drama sebagai bagian sastra merupakan salah satu kompetensi dasar yang harus dipelajari di tingkat SMA kelas XI. Melalui pembelajaran ini, siswa diharapkan…
Mahasiswa mengalami perubahan sistem belajar mengajar, serta tuntutan tugas yang lebih sulit, sejak masuk masa perkuliahan dibandingkan dengan masa SMA. Efikasi diri mahasiswa adalah kemampuan mahasiswa dalam melaksanakan tugasnya untuk mencapai tujuannya. Keyakinan-keyakinan dalam diri mahasiswa mempengaruhi bagaimana mahasiswa berfikir, merasa, memotivasi dirinya dan bertindak. Penelitian in…