Dissimilar welding between ASTM A36 carbon steel and AISI 304 stainless steel is widely applied in manufacturing industries because it combines the mechanical properties of carbon steel with the corrosion resistance of stainless steel. However, differences in chemical composition and thermal properties may affect the quality of the welded joint. This study aims to investigate the effect of E308…
The development of the automotive and aerospace industries is driving demand for lightweight materials such as aluminum alloys. In Indonesia, aluminum demand reaches 1.2 million tons per year, but 56% is still met by imports (ESDM, 2024). Aluminum waste, such as cans and spare parts, can pollute the environment. Aluminum recycling is a solution to reduce waste and dependence on imports, as well…
Penelitian ini mengembangkan material komposit PLA/Mg/CaCO₃ untuk perancah tulang biodegradable dalam rekayasa jaringan ortopedi. Komposit mengintegrasikan tiga komponen: Polylactic Acid sebagai matriks polimer biodegradable, Magnesium sebagai penguat mekanik osteogenik, dan Kalsium Karbonat sebagai aditif mineral bioaktif. Keterbatasan sifat mekanik PLA murni dan tantangan fabrikasi akibat a…
The ease of accessing information on the internet has led to the emergence of many online shopping platforms, resulting in an increasing number of online courier companies providing safe package delivery services to consumers. This poses a risk to couriers who spend their working hours on the highways. Therefore, good safety riding practices are necessary to minimize traffic accidents. The purp…
Penelitian ini mengkaji hubungan antara sifat fisik dan mekanik tanah dengan daya dukung tanah di sekitar Danau Rayo, Kabupaten Musi Rawas Utara, Sumatera Selatan, pada area seluas 1,2 × 1,2 km. Pengamatan dilakukan pada tujuh titik, yakni BR1–BR5 di zona basin dan BR6–BR7 di zona rim. Daya dukung tanah (qa) dihitung menggunakan metode Terzaghi berdasarkan parameter kohesi, sudut geser dal…