Pengaruh penggunaan reduktor karbon berbahan residu hasil pirolisis (arang) limbah printed circuit board dengan variasi 5, 10, dan 15 wt.% pada proses karbotermik bijih nikel Indonesia = The effect of using waste printed circuit board pyrolysis residue (charcoal) as carbon reductor to Indonesian nickel ore carbothermic process with concentration variation 5, 10, and 15 wt.%

Pengaruh Durasi Pirolisis dan Penggunaan Dry Milling serta Surfaktan dalam Sintesis Nanopartikel berbasis Printed Circuit Board Waste pada Nanofluida. = The Effect of Pyrolysis Duration and Dry Milling by Adding Surfactant at Synthesis Nanoparticle from Printed Circuit Board Waste for Nanofluids.

Pengaruh Persentase Surfaktan Polyethylene Glycol (PEG) dan Persentase Partikel Logam Printed Circuit Board (PCB) Terhadap Zeta Potensial, Konduktivitas Termal, dan Viskositas Thermal Fluids Sebagai Media Pendingin Perlakuan Panas = The Effect of Polyethylene Glycol (PEG) Surfactant Percentage and Metallic Particle Percentage o Printed Circuit Board (PCB) Waste on Zeta Potential, Thermal Conductivity, and Viscosity of Thermal Fluids as Heat Treatment Coolants

Pengaruh Penambahan Surfaktan Amfoterik dan Partikel Non Logam dari Limbah Printed Circuit Board (PCB) terhadap Kestabilan, Konduktivitas Termal, dan Viskositas Termal Fluids sebagai Media Quenching = The Influence of Adding Amphoteric Surfactant and Non-Metallic Particles from Printed Circuit Board (PCB) Waste on the Stability, Thermal Conductivity, and Thermal Fluids Viscosity as Quenching Media

Pengaruh temperatur reduksi dengan variasi 700, 900, dan 1100 C terhadap reduksi karbotermik bijih nikel limonit Indonesia menggunakan 20 wt.% limbah printed circuit board sebagai reduktor = Effect of reduction temperature with variations of 700, 900, and 1100 C in carbothermic reduction of Indonesian limonite ore using 20wt.% printed circuit boards as reducing agent