Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Keunhee Lee"'
Publikováno v:
IEEE Access, Vol 7, Pp 117176-117187 (2019)
As the demand for mobile traffic is growing, radio frequency bandwidths often become insufficient for guaranteeing specific performance. Utilizing unlicensed 5 GHz broadband bandwidths, the LWA system enables the synergistic use of LTE and WiFi syste
Externí odkaz:
https://doaj.org/article/373b1142551a4cfe8011a1e7f5a54db2
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49c81880fb5dcffa0e1d6a5602d13fcc
https://doi.org/10.2139/ssrn.4126905
https://doi.org/10.2139/ssrn.4126905
Publikováno v:
International Journal of Heat and Mass Transfer. 196:123229
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2b9b48172a51de963ec322bb6c89f6c
https://doi.org/10.1016/j.ijheatmasstransfer.2022.123229
https://doi.org/10.1016/j.ijheatmasstransfer.2022.123229
Autor:
Keunhee Lee, Hyungson Ki
Publikováno v:
Applied Surface Science. 494:187-195
In this study, we present a femtosecond laser patterning method based on the control of surface reflectance. This laser patterning method is based on the laser-induced periodic surface structure (LIPSS), and we first studied how the LIPSS pattern evo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9566c8ad7942014b9c4cd2477561b19b
https://doi.org/10.1016/j.apsusc.2019.07.163
https://doi.org/10.1016/j.apsusc.2019.07.163
Publikováno v:
Journal of Korean Institute of Intelligent Systems. 29:258-267
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3ea23b1de9baaeab0c157678680803c
https://doi.org/10.5391/jkiis.2019.29.4.258
https://doi.org/10.5391/jkiis.2019.29.4.258
Publikováno v:
Pure and Applied Geophysics. 177:1125-1141
There have been many studies to improve visibility forecast skills using numerical models, but their performance still remains behind the forecast skills for other meteorological phenomena. This study attempted to improve visibility forecasts using a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf9d590a34c8474720dd20048e2366b4
https://doi.org/10.1007/s00024-019-02288-z
https://doi.org/10.1007/s00024-019-02288-z
Publikováno v:
IEEE Access. 7:117176-117187
As the demand for mobile traffic is growing, radio frequency bandwidths often become insufficient for guaranteeing specific performance. Utilizing unlicensed 5 GHz broadband bandwidths, the LWA system enables the synergistic use of LTE and WiFi syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b4d8bee1334a95ac9f0e4f6dc763aa0
https://doi.org/10.1109/access.2019.2936857
https://doi.org/10.1109/access.2019.2936857
To be well prepared for rapidly-developing meteorological hazards in advance, quick and qualified information on real-time and very-short range (within 6 hours) forecasts is required. KLAPS (Korea Local Analysis and Prediction System) was developed f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a21be6540857f0bc90b5fbba906c24b
https://doi.org/10.5194/egusphere-egu2020-6451
https://doi.org/10.5194/egusphere-egu2020-6451
Autor:
Keunhee Lee, Hyungson Ki
Publikováno v:
Optics & Laser Technology. 139:106943
To improve laser beam coupling to the copper surface for the formation of a keyhole, a method of changing the surface reflectance of copper using femtosecond laser patterning is proposed in this study. For 2 kW fiber laser welding of copper, a 2 mm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55204e9432ba6ecd6ea5a5ef9bb0b289
https://doi.org/10.1016/j.optlastec.2021.106943
https://doi.org/10.1016/j.optlastec.2021.106943