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Volume 8 Number 4 Year 2023

29 articles in this issue 

Kholiq Deliasgarin Radyantho,Selvia Nur Qolbi,Faisal Manta,Doddy Suanggana,Muhammad Iskandar

Palm oil shells are an example of the residual products of the palm oil processing industry which can be utilized as a new alternative renewable energy source in the form of briquettes. The oil palm shells in this study were first carbonized for 1 hour wi... see more

 

Iman Taufiq Daulay,A.A.B. Dinariyana

Choosing a shipyard that does not meet the requirements can affect ship building process. Incompatibility of construction process can cause delays in completion time or delivery of ship to shipowner. The resulting delays can affect reputation of shipowner... see more

 

Ede Mehta Wardhana,Meitha Soetardjo,Semin Semin,Agoes Santoso,Sutopo Purwono Fitri

This study explores the significance of the natural frequency parameter in enhancing the electrical performance of a piezoelectric generator device, mainly when deployed in ocean energy harvesting. While natural energy harvesting aims to establish afforda... see more

 

Irfan Syarief Arief,Amiadji Amiadji,I Putu Gedhe Adhi Darsana,Achmad Baidowi

One way to fight climate change is making a transition from fossil fuel powered energy into renewable energy.  In Indonesia the government have the national energy mix prediction which state that in 2050 58% Indonesian energy source will be renewable... see more

 

Faris Nofandi,Alwi Sina Khaqiqi,Rizki Adi Pratama

As an archipelagic country, Indonesia has abundant natural resources and the potential to develop various industries. In this case, the Ministry of Industry still relies on Java as a location to encourage industrial activities in Indonesia. One of the lar... see more

 

Aldyn Clinton Partahi Oloan,Muswar Muslim,Ayom Buwono

For variations in ship speed given data such as length perpendicular (LPP) 28 meters, propeller rotation (N) 290 rpm and shaft horse power (SHP) of 452.5 Hp by setting speed values varying from 4 knots to 9 knots, the average propeller efficiency for the ... see more