Abstract: This paper outlines the theory behind helicoid antenna array beamforming and the practical validation on an 8x8 helicoid antenna array. Design, simulation, and measurement are presented at 2 ...
The use of microgranular fertilizers is currently increasing, with low application rates as an obstacle in the mechanization. This study aimed to verify the performance of helical metering mechanisms ...
Archimedes screw as a form of art by Tony Cragg at ‘s-Hertogenbosch in the Netherlands. Credit: Polleket, Wikimedia Commons, CC BY-SA 3.0 Have you ever wondered how ancient civilizations moved water ...
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