Zobrazeno 1 - 10
of 30
pro vyhledávání: '"HyungDal Park"'
Publikováno v:
Micromachines, Vol 15, Iss 7, p 862 (2024)
In this study, the effects of electrode porosity on nerve regeneration and functional recovery after sciatic nerve transection in rats was investigated. A sieve-type neural electrode with 70% porosity was designed and compared with an electrode with
Externí odkaz:
https://doaj.org/article/86ecbfaef38c4794891b34f596361b9e
Publikováno v:
Micromachines, Vol 15, Iss 4, p 543 (2024)
This paper presents a direct 3D numerical simulation of biaxial surface wrinkling of thin metal film on a compliant substrate. The selected compliant substrate is a commercial Scotch tape on which a gold metal thin film has been transferred by using
Externí odkaz:
https://doaj.org/article/2fa3b0908642459ba5f9a024dbdedbf0
Publikováno v:
Micromachines, Vol 14, Iss 4, p 747 (2023)
This paper presents a direct numerical simulation for the extraction of material properties based on thin-film wrinkling on scotch tape. Conventional FEM-based buckling simulation sometimes requires complex modeling techniques concerning mesh element
Externí odkaz:
https://doaj.org/article/d00a9cb729ed4a91abcb03b487e078bf
Publikováno v:
Micromachines, Vol 13, Iss 8, p 1295 (2022)
This paper presents the mechanical behaviors of different types of polyimide feedthroughs that are frequently used for implantable polymer encapsulation. Implantable packages of electronic devices often comprise circuits mounted on printed circuit bo
Externí odkaz:
https://doaj.org/article/4b04b85992f34010b47abc82b11dc28a
Publikováno v:
Micromachines, Vol 13, Iss 4, p 516 (2022)
This paper proposed and verified the use of polymer-based packaging to implement the chronic implantation of neural interfaces using a combination of a commercial thermal epoxy and a thin parylene film. The packaging’s characteristics and the perfo
Externí odkaz:
https://doaj.org/article/a34a877929524bebb4f11f985c7561c9
Publikováno v:
Micromachines, Vol 11, Iss 6, p 605 (2020)
This paper presents measurement and FEM (Finite Element Method) analysis of metal adhesion force to a parylene substrate for implantable neural probe. A test device composed of 300 nm-thick gold and 30 nm-thick titanium metal electrodes on top of par
Externí odkaz:
https://doaj.org/article/a025dc1f652e405899bc1849eab6b645
Autor:
Woohyun Jung, Sunyoung Jung, Ockchul Kim, HyungDal Park, Wonsuk Choi, Donghee Son, Seok Chung, Jinseok Kim
Publikováno v:
Micromachines, Vol 10, Iss 3, p 184 (2019)
Massive efforts to develop neural interfaces have been made for controlling prosthetic limbs according to the will of the patient, with the ultimate goal being long-term implantation. One of the major struggles is that the electrode’s performance d
Externí odkaz:
https://doaj.org/article/abcfc0e39cda48149b1fea752ed53aaf
Autor:
Woohyun Jung, Wonsuk Choi, Ockchul Kim, Jinseok Kim, Jong Woong Park, Jun-Uk Chu, Sunyoung Jung, Jinwoo Jeong, HyungDal Park
Publikováno v:
Journal of Microelectromechanical Systems. 29:514-521
The peripheral neural interface (PNI) is a vital technology in robotic prosthesis due to its potential to provide bidirectional communication between the prosthesis and the brain. However, a more efficient trade-off between neural spatial selectivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7454b0926dd4a889ef605cfb09cffb90
https://doi.org/10.1109/jmems.2020.2996220
https://doi.org/10.1109/jmems.2020.2996220
Publikováno v:
Journal of Micromechanics and Microengineering.
This paper presents a new simple method to measure thin film material properties using scotch-tape surface wrinkling. Metal thin films have been deposited on polymer substrates by e-beam evaporation. After patterned by photolithography and wet etchin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::760e1ddb72c1d6952c28796f2c6a410d
https://doi.org/10.1088/1361-6439/ac537e
https://doi.org/10.1088/1361-6439/ac537e
Autor:
Hui Su Kim, SangChul Mun, JongChul Lee, Hyungdal Park, Byung Chul Lee, Seung-Hyun Lee, Byeong-No Lee, Seung-wook Shin, H. S. Song, Jong-Seo Chai, Ki-back Song, Donghyup Ha
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 852:40-45
We developed a design for a 6 MeV X-band linear accelerator for radiation therapy in a dual-head gantry layout. The dual-head gantry has two linacs that can be operated independently. Each X-band linac accelerates electron bunches using high-power RF
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7391938b5ccf1baed9e210653cf921b1
https://doi.org/10.1016/j.nima.2016.11.034
https://doi.org/10.1016/j.nima.2016.11.034