Jang-Yeob Lee

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The American cockroach, Periplaneta americana, is reported to follow walls at a rate of up to 25 turns s(-1). During high-speed wall following, a cockroach holds its antenna relatively still at the base while the flagellum bends in response to upcoming protrusions. We present a simple mechanosensory model for the task-level dynamics of wall following. In(More)
The detailed mechanisms leading to soft tissue contrast in MRI are not known. To explore the physical basis for this phenomena, the effect of acyl chain packing of phospholipid model membranes on water proton relaxation were investigated at 20 MHz at 40 degrees C. Three variables affecting lipid packing were examined: chain composition, toluene(More)
A soft-bodied robot made of smart soft composite with inchworm-inspired locomotion capable of both two-way linear and turning movement has been proposed, developed, and tested. The robot was divided into three functional parts based on the different functions of the inchworm: the body, the back foot, and the front foot. Shape memory alloy wires were(More)
This paper presents a biomimetic turtle flipper actuator consisting of a shape memory alloy composite structure for implementation in a turtle-inspired autonomous underwater vehicle. Based on the analysis of the Chelonia mydas, the flipper actuator was divided into three segments containing a scaffold structure fabricated using a 3D printer. According to(More)
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