8 articles in this issue
Rahma Yanda, Morihiro Harada, Ichiro Tamagawa
The dependence of flow velocity distribution near the bed on the roughness geometry has led to various approaches for estimating the velocity. Themodels proposed bypreviousstudies aremostlybased on segmented velocityprofiles(e.g., a linear distribution wi... see more
Vivi Purwandari, Isnaeni Isnaeni, Rizka Rahmi, Ahmad Zukhruf Akbari, Muhammad Zaim Akbari
Moringa (Moringa oliefera) contains several antioxidant compounds such as quercetin and chlorogenic acid. However, antioxidants have weaknesses, namely that they are easily damaged by exposure to oxygen, light, high temperatures, and drying. One way ... see more
Amalia Listiani, Dani Al Mahkya
Kukuh Pribadi, Dedet Hermawan Setiabudi, Bahrul Jalaali
This study aims to design and conduct an experimental study of axle tilt angles variation on the performance of the Archimedes screw turbine (AST). The AST was constructed based on Rorres (2000) [3] formulation to achieve the... see more
Arief Firmansyah, Hamzah Hamzah, Eva Achmad
Biomass calculations are useful for knowing the amount of carbon stored in a forest ecosystem and essential steps to mitigate global warming and climate change. Restoration activities at PT Alam Bukit Tigapuluh (PT ABT) have indirectly made efforts to abs... see more
Putu Handre Kertha Utama, Irsyad Nashirul Haq, Edi Leksono, Justin Pradipta, M Daya Imannata, Timothius Pratama Tjahja
A power outage on a conventional grid can cut the electricity supply to the entire load. In contrast, Microgrid (MG) can still supply at least the most critical local loads even though blackout occurs in the main grid. MG can also utilize renewable ... see more
Sri Wardani, Ni Wayan Bogoriani, Ni Luh Rustini
Kecombrang (Etlingera elatior Jack) is a plant that has potential for hypolipidemia. Kecombrang has secondary metabolites consisting of tannins, saponins, alkaloids, steroids, terpenoids, phenolics, and flavonoids. The purpose of this study was ... see more
Manuntun Manurung, Widihati Widihati, I.A.G. Yunilawati
The coconut husk contains high cellulose, so it can be processed as a basic materials to make activated charcoal. The purpose of the study was to make activated charcoal from coconut husk fiber with hydrochloric acid activator and to determine the effect ... see more