Hoon Sohn

Bridge health monitoring using existing telecommunication fiber-optic networks

Jingxiao Liu, Jatin Aggarwal, Doyun Hwang, Jigu Lee et autres

Aging bridges pose significant risks to public safety. Although existing sensing technologies offer a potential solution for structural health monitoring, the high cost and complexity of installing and maintaining sensing systems have limited their scalability and long-term deployment. Here, we present a …

sg, us, kr, it (code pays fourni par la source)

Revealing intrinsic 3D spin angular momentum of evanescent acoustic phonons on a single-crystal surface using ultrafast optoacoustics

Yi He, Guojie Luo, Hoon Sohn, Osamu Matsuda et autres

Recent advances in spin angular momentum (SAM) of acoustic and elastic waves have deepened our understanding of phonons across classical and quantum regimes. Here, we investigate evanescent acoustic phonons (EAPs) on a single-crystal surface and reveal an intrinsic three-dimensional (3D) spin angular …

hk, kr, jp (code pays fourni par la source)

Acceleration-aided Kalman filtering for joint phase denoising and unwrapping in FMCW radar-based displacement monitoring

Zhanxiong Ma, Tongtong Zhang, Yang Zhu, Shuhan Lin et autres

cn, kr (code pays fourni par la source)

Reference-free remaining fatigue life prediction for notched aluminum 6061-T6 plates without preliminary fatigue tests

Oh-Jun Kwon, Hyung Jin Lim, Hoon Sohn

kr (code pays fourni par la source)

Remaining fatigue life estimation under varying amplitude cyclic loading conditions combining ultrasonic waves and relative strain measurements for aluminum 6061-T6 plates with a notch

Oh-Jun Kwon, Hyung Jin Lim, Hoon Sohn

kr (code pays fourni par la source)

Development of dual PZT transducers for reference-free crack detection in thin plate structures

Hoon Sohn, Seuno Bum Kim

A new Lamb-wave-based nondestructive testing (NDT) technique, which does not rely on previously stored baseline data, is developed for crack monitoring in plate structures. Commonly, the presence of damage is identified by comparing "current data" measured from a potentially damaged stage of …

kr, us (code pays fourni par la source)

NOVELTY DETECTION IN A CHANGING ENVIRONMENT: REGRESSION AND INTERPOLATION APPROACHES

Keith Worden, Hoon Sohn, Charles R. Farrar

us (code pays fourni par la source)