Yong Hoon Jang

TL;DR: A flexible and sensitive textile-based pressure sensor is developed using highly conductive fibers coated with dielectric rubber materials that exhibits superior sensitivity, very fast response time, and high stability when applied to make smart gloves and clothes that can control machines wirelessly as human-machine interfaces.

TL;DR: In this article, the authors considered a contact problem in which an elastic half-plane is pressed against a rigid fractally rough surface, whose profile is defined by a Weierstrass series.

TL;DR: In this article, the authors developed an analytical model that can predict the frictional resistance of the capsule endoscope moving inside the living body of a pig, and the experimental results showed that the average frictional force was 10-50 mN and higher moving speed of a capsule dummy resulted in larger frictional resistances.

TL;DR: The proposed model can provide quantitative estimation of the frictional resistance of the capsule under various moving conditions inside the intestine and is expected to be useful in the design optimization of the capsules locomotioninside the intestine.

TL;DR: In this paper, a smoothed version of the interaction effect is developed and used to predict the contact resistance when the statistical size and spatial distribution of contact spots is known, and it is shown that including finer scale detail in the fractal surface, equivalent to reducing the sampling length in the measurement of the surface, causes the predicted resistance to approach the perfect contact limit.