1. Design, test, and improvement of a low-cost apple harvest-assist unit Open Access Author: Zhang, Zhao Title: Design, test, and improvement of a low-cost apple harvest-assist unit Graduate Program: Agricultural and Biological Engineering Keywords: Rapid Upper Limb Assessment (RULA)apple harvestsafetyergonomic analysisharvest assist-unitawkward postures. File: Download Zhao_Zhang_dissertation.pdf Committee Members: Paul Heinz Heinemann, Committee Chair/Co-ChairJude Liu, Dissertation Advisor/Co-AdvisorAndris Freivalds, Committee MemberJames Rawlinson Schupp, Special Member