Biodegradable foam (biofoam) as a food packaging material is an alternative to conventional styrofoam packaging products that are more environmentally friendly because they can be decomposed naturally so that they do not cause environmental pollution. This experiment aims to determine the effect of the addition of rice husk biosilica in the manufacture of biofoam based on cassava starch and oth…
One of the causes of airplane accidents on the ground was the presence of water puddles on the runway. To address this problem, the development of an automatic sensor system that could accurately measure the height of water puddles on the runway was required. This study focused on investigating the crashworthiness and fracture capability of sensor frames made of ST 37 steel. Three different sen…
PT Medco E&P Indonesia at Singa Field produces approximately 40 mmscfd of natural gas power plants for sale purposes. Composition of natural gas Singa Field is dominated by methane gas with impurities such as hydrogen sulfide gas (FLS) and carbon dioxide (CO2) to be derived gases sold presentations that meet desired specifications. The content of CO2 and H2S in the feed gas respectively by 38.4…
Tectonically, the research area is located in the South Sumatra Basin. The South Sumatra Basin is known as a complex geological area. In general, the research area is located in the Early Postrift (Early Miocene-Middle Miocene). In the Talang Baru area, research on the diagenesis of the Gumai Formation calcareous sandstone has not been carried out comprehensively, so this study aims to determin…
Silicone Rubber insulation is used because it has a good dielectric properties. The use of Silicone Rubber for a long time can cause the insulation to expand (increase in length) and result in a decrease in the quality of the insulation. Aluminum has low density, corrosion resistance and good elasticity. In addition, aluminum has tailorability properties, so that the required mechanical propert…
Construction development in Indonesia has developed quite rapidly in the last few decades. The construction material that is commonly used now is concrete. Concrete is composed of aggregate, cement, and water. However, the fact is that the use of cement can produce quite high CO2 gas which can cause a greenhouse effect. In addition, increasing development in Indonesia causes a lack of water cat…
Pemeliharaan gedung yang baik akan memberikan rasa nyaman, aman, tenang dan bersih kepada setiap orang, sehingga meningkatkan produktivitas kerja. Pemeliharaan yang dilakukan secara rutin dapat mengurangi tingkat kerusakan pada bangunan gedung. Hal ini dikarenakan akibat umur bangunan yang terus bertambah menyebabkan kondisi bangunan mengalami penurunan kualitas hingga terjadinya kerusakan. Stu…
Beton ringan menurut SNI adalah beton yang memiliki berat satuan kurang dari 1900 kg/m³. Campuran beton yang digunakan dalam penelitian ini adalah dari semen, air, agregat halus, fly ash, dan bottom ash. Fly ash yang digunakan berasal dari hasil pembakaran batubara yang beterbangan pada tungku pembakaran. Bottom ash yang digunakan merupakan limbah abu batubara yang terdapat pada dasar tungku s…
Apabila kawat tempat benda tergantung itu putus, maka segera dapat dipahami pengaruh gaya- gaya di dalam sistem itu, yaitu pengaruh gaya berat pada benda yang mengakibatkan benda jatuh bila kawat putus dan pengaruh suatu gaya yang menyebabkan kawat tegang selama benda bergantung padanya. Gaya yang digambarkan tersebut di atas disebut ' Gaya Tersembunyi ' ( Arrested Forces ), yaitu gaya tersembu…
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