Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Kiejin Lee"'
Publikováno v:
IEEE Access, Vol 12, Pp 139711-139723 (2024)
This study presents a new in-vivo microwave imaging method to determine the blood glucose levels of mice directly from their tail using a thermo-elastic optical indicator microscope (TEOIM). By measuring the microwave near-field distribution intensit
Externí odkaz:
https://doaj.org/article/da573c4cd0104ff7bf5e49bacefa5098
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract A new practical imaging technique was presented for metamaterial characterization and investigation by visualizations of the magnetic microwave near-field (H-MWNF) distributions on a metamaterial's surface using the method of thermo-elastic
Externí odkaz:
https://doaj.org/article/ec4789287a8747d5a1739e8861765b84
Autor:
David Hambaryan, Tigran Abrahamyan, Henrik Parsamyan, Artyom Movsisyan, Bill Minasyan, Hovhannes Haroyan, Arsen Babajanyan, Kiejin Lee, Barry Friedman, Khachatur Nerkararyan
Publikováno v:
Heliyon, Vol 10, Iss 2, Pp e24477- (2024)
The resonant interaction of a dielectric-coated conductive rod with the X-band microwave field is investigated. The magnetic field distribution of the Goubau standing radial surface waves was experimentally visualized by using a thermo-elastic optica
Externí odkaz:
https://doaj.org/article/0681a20ea84f477e9a9d766e443fc50e
Autor:
Zhirayr Baghdasaryan, Arsen Babajanyan, Henrik Parsamyan, Barry Friedman, Seungwan Kim, Jung-Ha Lee, Kiejin Lee
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Visualizations of the microwave electric and magnetic near-field distributions of radio-frequency (RF) filters were performed using the technique of thermoelastic optical indicator microscopy (TEOIM). New optical indicators based on periodic
Externí odkaz:
https://doaj.org/article/d862ed0b0d4346688dd33dc01acff901
Autor:
Zhirayr Baghdasaryan, Arsen Babajanyan, Levon Odabashyan, Jung-Ha Lee, Barry Friedman, Kiejin Lee
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract In this study, a new optical method is presented to determine the concentrations of NaCl and glucose aqueous solutions by using a thermo-elastic optical indicator microscope. By measuring the microwave near-field distribution intensity, conc
Externí odkaz:
https://doaj.org/article/0ddf001f1e6a4c06a301a53873677fd0
Publikováno v:
IEEE Access, Vol 7, Pp 46084-46091 (2019)
We present a new method for the subsurface imaging of a conductive object embedded in a dielectric medium based on microwave imaging by thermo-elastic optical indicator microscopy. The present method is based on the imaging of the microwave near fiel
Externí odkaz:
https://doaj.org/article/865a239ec40d4060a0e0408c33897523
Publikováno v:
IEEE Access, Vol 7, Pp 42201-42209 (2019)
We present a new optical method for the electrical defect inspection for indium tin oxide (ITO) thin film on a glass substrate. The present method is based on the visualization of the microwave heating distribution around an electrical defect from th
Externí odkaz:
https://doaj.org/article/2ca6cea525a947d6bc75141ccff2c85c
Publikováno v:
Case Studies in Thermal Engineering, Vol 10, Iss C, Pp 407-412 (2017)
The visualization of mass storage controllers and flash memory chips in the USB2.0, USB3.0 and solid state device (SSD) devices was performed using a thermo-elastic optical indicator microscopy system. Heat distributions corresponding to the various
Externí odkaz:
https://doaj.org/article/794f0a698b5b4e2984f9a1818c4e9539
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-13 (2016)
Dissipative systems may provide another platform towards adaptive electronics beyond adaptive biological systems. Here, Leeet al. report a non-volatile memristive microwave device based on adaptive tuning of the dissipative magnetic domains of a driv
Externí odkaz:
https://doaj.org/article/b0245b884dc342c2ad8c7e958d06373d
Autor:
Hyung Keun Yoo, Hanju Lee, Kiejin Lee, Chul Kang, Chul-Sik Kee, In-Wook Hwang, Joong Wook Lee
Publikováno v:
AIP Advances, Vol 7, Iss 10, Pp 105008-105008-6 (2017)
We demonstrate the conditions for optimal modulation efficiency of active terahertz modulators based on phenyl-C61-butyric acid methyl ester (PCBM)-silicon hybrid structures. Highly efficient active control of the terahertz wave modulation was realiz
Externí odkaz:
https://doaj.org/article/c25b0373e4b5433a8bb34a33f222d796