Chaiya, A., Pawako, S., Okchol, M., Sripaisan, V., Chaitanoo, N., Intagun, W. and Junphong, A. (2026) “Optimization of Vertical Screw Conveyor for Biomass Sampling: Influence of Pitch Geometry on Energy Dissipation and Material Integrity”, RMUTL Engineering Journal, 11(1), pp. 14–25. doi: 10.14456/rmutlengj.2026.2.