Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Chung Il Park"'
Autor:
Chung Il Park, Seungah Choe, Woorim Lee, Wonjae Choi, Miso Kim, Hong Min Seung, Yoon Young Kim
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Imaging technologies that provide detailed information on intricate shapes and states of an object play critical roles in nanoscale dynamics, bio-organ and cell studies, medical diagnostics, and underwater detection. However, ultrasonic imag
Externí odkaz:
https://doaj.org/article/82109739449d43d382c8a7eee25403b7
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
In spite of extensive studies on zero-index metamaterials, the realization of zero impedance with finite phase velocity has not been explored. Here, the authors show that this extreme case, realized by elaborately-tuned paired resonators, can effecti
Externí odkaz:
https://doaj.org/article/c7179f9919e6460b95ca71301137d2c7
Autor:
Hyunggwi Song, Eunjeong Park, Hong Jae Kim, Chung-Il Park, Taek-Soo Kim, Yoon Young Kim, Seunghwa Ryu
Publikováno v:
Materials & Design, Vol 230, Iss , Pp 111974- (2023)
Medical concentric tubes have recently been designed using auxetic structures with negative Poisson's ratios to reduce undesirable snapping instability and improve mechanical performance. Despite the vast range of stiffness levels, prior auxetic desi
Externí odkaz:
https://doaj.org/article/3833e020481947f6bbb254d7d0847664
Publikováno v:
Journal of Sport and Leisure Studies. 87:101-113
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de00e4b8f4f102de394621cd5c7b206d
https://doi.org/10.51979/kssls.2022.01.87.101
https://doi.org/10.51979/kssls.2022.01.87.101
Publikováno v:
International Journal of Mechanical Sciences. 251:108354
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c3b862422537d8a4d94dda7337a7907
https://doi.org/10.1016/j.ijmecsci.2023.108354
https://doi.org/10.1016/j.ijmecsci.2023.108354
Autor:
Chung-Il Park
Publikováno v:
Korean Journal of Sports Science. 30:547-558
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd92d72908d23ab854a4508cc4b77b83
https://doi.org/10.35159/kjss.2021.8.30.4.547
https://doi.org/10.35159/kjss.2021.8.30.4.547
Publikováno v:
Physical Review Applied. 13
This paper presents an elastic metasurface that can entrap the elastic wave energy of both longitudinal and shear wave modes in a lossy region, resulting in almost no reflection environment, which we call a reflectionless metasurface. Unlike previous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb442654ea525e4e2b42aed6eb9635c5
https://doi.org/10.1103/physrevapplied.13.054036
https://doi.org/10.1103/physrevapplied.13.054036
Publikováno v:
Extreme Mechanics Letters. 51:101606
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a0fa841c7b1d3c57155f4f870346cb8
https://doi.org/10.1016/j.eml.2022.101606
https://doi.org/10.1016/j.eml.2022.101606
Publikováno v:
Ultrasonics. 88:72-83
Guided-wave based damage detection for plates has been widely studied for structural health monitoring. Because most of the earlier studies used dispersive Lamb waves, substantial efforts had to be made to alleviate the dispersive and multi-modal nat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc29432e1d705912ec1280dd0fda04fb
https://doi.org/10.1016/j.ultras.2018.03.009
https://doi.org/10.1016/j.ultras.2018.03.009
Publikováno v:
Journal of Sound and Vibration. 414:245-258
Real-time uninterrupted measurement for torsional vibrations of rotating shafts is crucial for permanent health monitoring. So far, strain gauge systems with telemetry units have been used for real-time monitoring. However, they have a critical disad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5889cba98c9a12d051e73c50777c6a7
https://doi.org/10.1016/j.jsv.2017.11.023
https://doi.org/10.1016/j.jsv.2017.11.023