Y-Scholar Hub@YONSEI
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The Scholar Hub digital repository system captures, stores, indexes, preserves, and distributes digital research material.2024-03-19T13:02:08ZHighly Sensitive Flexible Tactile Sensors in Wide Sensing Range Enabled by Hierarchical Topography of Biaxially Strained and Capillary‐Densified Carbon Nanotube Bundles
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6258
Title: Highly Sensitive Flexible Tactile Sensors in Wide Sensing Range Enabled by Hierarchical Topography of Biaxially Strained and Capillary‐Densified Carbon Nanotube Bundles
Authors: Sim, Sangjun; Jo, Eunhwan; Kang, Yunsung; Chung, Euichul; Kim, Jongbaeg
Abstract: Flexible tactile sensors with high sensitivity have received considerable attention for their use in wearable electronics, human–machine interfaces, and health-monitoring devices. Although various micro/nanostructured materials are introduced for high-performance tactile sensors, simultaneously obtaining high sensitivity and a wide sensing range remains challenging. Here, a resistive tactile sensor is presented based on the hierarchical topography of carbon nanotubes (CNTs) prepared by a low-cost and straightforward manufacturing process. The 3D hierarchical structure of the CNTs over large areas is formed by transferring vertically aligned CNT bundles to a prestrained elastomer substrate and subsequently densifying them through capillary forming, providing a monotonic increase in the contact area as applied pressure. The deformable and hierarchical structure of CNTs allows the sensor to exhibit a wide sensing range (0–100 kPa), high sensitivity (141.72 kPa−1), and low detection limit (10 Pa). Additionally, the capillary-formed CNT structure results in increased durability of the sensor over repeated pressures. Based on these advantages, meaningful applications of tactile sensors, such as object recognition gloves and multidirectional force perceptions, are successfully realized. Given the scalable fabrication method, 3D hierarchically structured CNTs provide an essential step toward next-generation wearable devices.All Paper‐Based, Multilayered, Inkjet‐Printed Tactile Sensor in Wide Pressure Detection Range with High Sensitivity
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6259
Title: All Paper‐Based, Multilayered, Inkjet‐Printed Tactile Sensor in Wide Pressure Detection Range with High Sensitivity
Authors: Lee, Taehoon; Kang, Yunsung; Kim, Kwanhun; Sim, Sangjun; Bae, Kyubin; Kwak, Yeunjun; Park, Wonkeun; Kim, Minhyeong; Kim, Jongbaeg
Abstract: Paper has attracted considerable interest as a promising pressure-sensing element owing to its foldability/bendability and deformability due to its high porosity. However, paper-based tactile sensors reported hitherto cannot achieve high sensitivity and a wide sensing range simultaneously. In this study, a resistive tactile sensor using carbon nanotube- and silver nanoparticle-printed mulberry paper as a pressure-sensing element and electrodes, respectively, is developed. The rough surface and high inner porosity of mulberry paper induce a significant change in the contact area when a multilayer-stacked structure is used, resulting in increased sensitivity to pressure. Moreover, the enhanced mechanical robustness of mulberry paper originating from the highly bonded network of long and thick fibers affords a wide pressure-sensing range. The sensor exhibits a high sensitivity exceeding 1 kPa−1 in an applied pressure range of 0.05–900 kPa; this achievement has not been reported among paper-based tactile sensors. Furthermore, the sensor exhibits a fast response/relaxation time, low detection limit, high resolution, high durability, and high flexibility. The advantages of the sensor afford several applications, including a crosstalk-free pressure sensor array, a three-axis pressure sensor, and wearable devices for measuring signals from a user.WARPINGFUSION: ACCURATE MULTI-VIEW TSDF FUSION WITH LOCAL PERSPECTIVE WARP
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6731
Title: WARPINGFUSION: ACCURATE MULTI-VIEW TSDF FUSION WITH LOCAL PERSPECTIVE WARP
Authors: Kang, Jiwoo; 이성민; Jang, Mingyu; Yoon, Hyunse; 이상훈22109201-01-01T00:00:00Z한국어 교사 교육 패러다임에 대한 시론.
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/22598
Title: 한국어 교사 교육 패러다임에 대한 시론.
Authors: LIU, RENBO20240113-01-01T00:00:00Z