Vol. 11 No. 2 (2026)

View Vol. 11 No. 2 (2026)

SUMMARY. Ibrahim et al., in their paper, compare the performance of zinc coating on high-carbon steel (AISI 1070) and low-carbon steel (AISI 1020), with research variables being electrolyte pH and coating quality testing using the corrosion rate method. Putra and Utomo, in their paper, quantify the total annual CO₂ emissions generated from non-traction electricity used in executive-class train cars applying a quantitative approach based on measured energy consumption and emission factors. Fikry et al., in their paper, propose a self-propelled floating café as an alternative to enhance tourism activities. Gunawan et al., in their paper, analyze the effects of variations in the albedo of reflective surfaces on the power output and efficiency of bifacial solar panels under tropical rainy-season conditions. Amanda and Rimantho, in their paper, seek to detect and analyze waste generated during the production process of roasted onion flavoring. Okviyanto et al., in their paper, evaluate the effectiveness of the coating process during total plant shutdown (TPS) painting work on four industrial components: the sole plate sag mill, cover motor ball mill, base frame motor bubble crusher, and OHC girder. Putro et al., in their paper, compared four different skeg-size variants used after modifying the ship's original hull. Nursyahied et al., in their paper, present a comparative analysis of the thermodynamic performance of split air conditioning (AC) on pipe length variations using three refrigerants, R32, R410A, and R290, with a simulation approach based on CoolProp v6.4 and REFPROP v10.0 software. Arvel et al., in their paper, evaluate the operational reliability and maintenance performance of a critical belt-type conveyor machine within the Lithos filling line at PT. Pertamina Lubricants.

DOI: https://doi.org/10.21009/JKEM.11.2
Published: 2026-07-31

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