Browsing NDSU Theses & Dissertations by Author "Ahmadi, Mojtaba"
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Developing a New Powered Seed Delivery System with Constant Seed Release Speed Using Two Confronting Belts
Ahmadi, Mojtaba (North Dakota State University, 2018)Seed delivery devices are aimed to carry seeds down to open furrow that might affect uniformity of plant stand and spacing. The objective of this study was to develop and evaluate a new seed delivery system utilizing a ... -
Mechanics of Surface Instabilities of Soft Nanofibers and Nonlinear Contacts of Hydrogels
Ahmadi, Mojtaba (North Dakota State University, 2020)The research of this dissertation is formulated in two fields, i.e., the theoretical and computational studies of circumferential wrinkling on soft nanofibers and the swelling mechanics study of a bi-layered spherical ...