Context. The footpoints of quiet Sun Transition Region (TR) loops do not seem to coincide with the photospheric magnetic structures appearing in traditional low-sensitivity magnetograms. Aims. To look for the so-far unidentified photospheric footpoints of TR loops using G-band bright points (BPs) as proxies for photospheric magnetic field concentrations. Methods. Comparison of TR measurements w...

Follow this and additional works at: http://digitalcommons.unl.edu/envstudtheses Part of the Agronomy and Crop Sciences Commons, Behavioral Economics Commons, Botany Commons, Growth and Development Commons, Natural Resources Management and Policy Commons, Other Economics Commons, Other Environmental Sciences Commons, Other Food Science Commons, Other Plant Sciences Commons, and the Plant Breedi...

This paper approaches the design problem of suitable grippers for a robotic arm to pick up horticulture products. General considerations have been pointed out and main concepts and mechanical designs have been discussed and proposed by sketches and drawings for an easy understanding of “on-field” problems and feasible solutions. Pneumatic actuation has been proposed with suitable grasp force co...