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41  Articles
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As the most abundant and widely distributed fossil fuel, coal has become a key component of energy sources in worldwide. However, air pollutants from coal power plants contribute carbon dioxide emissions. Therefore, understanding how to taking care coal i... see more

Substitute Natural Gas (SNG) merupakan campuran gas hidrokarbon dengan sifat mirip seperti gas alam yang dapat diproduksi dari gasifikasi dengan bahan baku berupa batubara atau biomassa. Gasifikasi adalah proses perubahan bahan baku padat menjadi gas. Den... see more

As the most abundant and widely distributed fossil fuel, coal has become a key component of energy sources in worldwide. However, air pollutants from coal power plants contribute carbon dioxide emissions. Therefore, understanding how to taking care coal i... see more

Northwest Java Basin (NWJB) is one of the proven hydrocarbon basins in Indonesia. The scope of this paper will focus onthe shales and sandstone interval within Y1 well in Karawang area, NWJB, Indonesia.A cored interval from Y1 well was chosen for an inves... see more

Northwest Java Basin (NWJB) is one of the proven hydrocarbon basins in Indonesia. The scope of this paper will focus onthe shales and sandstone interval within Y1 well in Karawang area, NWJB, Indonesia.A cored interval from Y1 well was chosen for an inves... see more

 This paper investigates the mutual coupling effects between axial-mode helical antenna arrays. Single-negative (SNG) magnetic metamaterials are developed and used in this work in order to reduce mutual coupling between axial-mode helical antennas us... see more


The Mendo River utilizes the local community for washing and bathing (MCK), rice fields, tin mining and fisheries. Sngai Mendo is included in a large river basin (DAS) so that it has the potential for various freshwater fisheries. The research objective w... see more

PREFACEIndonesian Journal of Science and Technology (IJoST) is a peer-reviewed journal that aims to publish and disseminate innovative research articles on the latest developments in all fields of science and technology. The journal publishes original pap... see more

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