Jaehoon Jung

Data-augmented machine learning approach for determination of over-excavation criteria in earth pressure balance shield tunnel boring machine operations

Kibeom Kwon, Young Jin Shin, Jaehoon Jung, Byeonghyun Hwang et autres

Regulating the discharged muck volume is essential for preventing over-excavation in projects constructed by tunnel boring machines (TBMs). Over-excavation is typically identified when the over-excavation ratio (OER) exceeds a predefined criterion for over-excavation (C OE ). However, this criterion has traditionally been …

kr, jp (code pays fourni par la source)

Automated rebar classification from point clouds

Mohsen Arjmand, Michael J. Olsen, Heidar Rastiveis, Jaehoon Jung

us, kr (code pays fourni par la source)

Scalable in-situ fabrication of multimodal electronic skin for intelligent robotics and interactive systems

Hakhyun Lim, Jungrak Choi, Chankyu Han, Dabin Kim et autres

Tactile sensing is a foundational technology for developing intelligent interactive systems across robotics, wearable devices, and human-machine interfaces. Despite progress in highly sensitive and multifunctional soft sensors, conventional multimodal platforms suffer from limited scalability and customization due to dependencies on complex cleanroom …

kr (code pays fourni par la source)

Development of a laboratory-scale apparatus and experimental investigation of fluid property effects on pipe wear in slurry shield TBM operations

Yuemyung Yoon, H. Kim, Young Jin Shin, Jaehoon Jung et autres

Managing pipeline wear is critical for maintaining excavation efficiency during slurry shield tunnel boring machine (TBM) operations. Yet, the effects of carrier fluid properties on pipe wear in slurries containing coarse particles remain insufficiently understood. To address this gap, this study developed …

kr, jp (code pays fourni par la source)

Economics of Property Insurance

Hyeyoon Jung, Jaehoon Jung

We study the economics of homeowners’ property insurance by examining how contract design balances the trade-off between incentive alignment and risk sharing. Using granular contract-level property insurance data merged with property-level disaster risk for millions of U.S. households, we develop and structurally …

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An International Comparative Study of Student- and School-Level ICT Factors Affecting Mathematics Achievement

Jaehoon Jung, Soo Young Lee

본 연구는 PISA 2022 데이터를 활용하여 한국, 싱가포르, 미국의 중ㆍ고등학생을 대상으로 수학 성취에 영향을 미치는 학생 및 학교 수준의 ICT 변인을 선정하고, 이들 간의 관계를 위계 선형 모형(HLM)을 통해 분석하였다. 분석 결과, 세 국가 모두에서 학업 관련 학교 밖 ICT 활용, ICT …

Field-scale experiment of pre-fracturing blast for EDZ control

J. Yim, Jaehoon Jung, Hyung-gu Kang, Jia‐Wei Lee et autres

The Excavation Damaged Zone (EDZ) is one of the striking issues of deep geological repository, with mechanical excavating technology standing out as a key approach for mitigating EDZ. However, the challenge lies in the severe wear on cutters and the subsequent reduction …

Knee Adduction Moment Features in Four Gait Modifications

Sean-Min Lee, So‐Min Lee, Ju-Hee Kim, H.G. Kwak et autres

Economics of Property Insurance

Hyeyoon Jung, Jaehoon Jung

us (code pays fourni par la source)

Development and validation of an affective domain assessment tool for enhancing mathematics experiential programs: A case study of the Gyeongnam mathematics culture center

Jihyun Hwang, Jaehoon Jung, Tae Soon Choi, Y J Kim et autres

This study developed and validated affective domain assessment tools to enhance the programs at the GyeongNam Mathematics Culture Center. The affective domains included perception of mathematics, growth mindset, interest, sense of accomplishment, and self-efficacy, with key factors selected through the Delphi method. …

Multipath Suppression Using 2-D Angle Analysis Based on the MIMO FMCW Radar

Jihye Kim, Jaehoon Jung, Sohee Lim, Seong-Cheol Kim

Indoor human detection is a key prerequisite for realizing smart home systems. However, radar sensors for human detection experience severe performance degradation due to multipaths of indoor environments. Multipath signals generate ghost targets that highly deteriorate radar system stability. In this study, …

kr (code pays fourni par la source)

Non-Line-of-Sight Vital Sign Detection Using Multipath Propagation of UWB Radar

Jaehoon Jung, Sohee Lim, Jihye Kim, Seong-Cheol Kim

Non-contact detection of vital signs, such as respiration and heartbeat, can be implemented with high accuracy using commercial radar sensors. However, the task is more challenging for non-line-of-sight (NLOS) scenarios, wherein the direct path between the radar and target is blocked. In …

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