Zobrazeno 1 - 10
of 191
pro vyhledávání: '"Ho-Soon Yang"'
Autor:
Young-Soo Kim, Jihun Kim, Je Heon Song, Myung Cho, Ho-Soon Yang, Joohyung Lee, Ho-Sang Kim, Kyoung-Don Lee, Hyo-Sung Ahn, Won Hyun Park
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 31, Iss 4, Pp 341-346 (2014)
A prototype of the GMT FSM has been developed to acquire and to enhance the key technology – mirror fabrication and tiptilt actuation. The ellipsoidal off-axis mirror has been designed, analyzed, and fabricated from light-weighting to grinding, p
Externí odkaz:
https://doaj.org/article/540ecc0f1636425084d5b09e9593797f
Publikováno v:
Journal of the Korean Physical Society. 81:473-480
CAS500-1 (Compact Advanced Satellite 500-1) launched in Mar. 2021 is the first Korean ground observation satellite localizing the entire mirror development, especially the primary mirror M1. M1 is a lightweight concave mirror with a diameter of 0.6 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4263db48079abbd5bab2128305e4bc08
https://doi.org/10.1007/s40042-022-00406-0
https://doi.org/10.1007/s40042-022-00406-0
Dual-path Phase Unwrapping Algorithm Based on Geodesic Curvature for Interferometric Fringe Analysis
Publikováno v:
Journal of the Korean Physical Society. 76:202-209
We present a path-dependent phase unwrapping algorithm with the dual-path scheme. The proposed algorithm removes the inconsistency between the true phase and its wrapped phase by rolling up a 1D wrapped phase array around a cylindrical surface. The d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7da9c1a9ed770c0e005e17f6f5fddf76
https://doi.org/10.3938/jkps.76.202
https://doi.org/10.3938/jkps.76.202
Autor:
Sung-Yeol Yu, Hyun-Su Yi, Jae Hyeob Lee, Hong-Suh Yim, Young-Jun Choi, Ho Soon Yang, Yun Woo Lee, Hong-Kyu Moon, Yong-Ik Byun, Wonyong Han
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 27, Iss 2, Pp 153-160 (2010)
We modified the optical system of 500 mm wide-field telescope of which point spread function showed an irregularity. The telescope has been operated for Near Earth Space Survey (NESS) located at Siding Spring Observatory (SSO) in Australia, and the
Externí odkaz:
https://doaj.org/article/96bed727f85e443d9ace91591fadc2ff
Autor:
Won Hyun Park, Seonghui Kim, Hanshin Lee, Hyun-Su Yi, Jae-Min Lee, Sun-Jung Ham, Jeeyeon Yoon, Sug-Whan Kim, Ho Soon Yang, Ki-Hyuk Choi, Zeen Chul Kim, Mike Lockwood, Nigel Morris, Ian Tosh
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 24, Iss 1, Pp 79-90 (2007)
The AmonRa instrument, the primary payload of the international EARTHSHINE mission, is designed for measurement of deep space albedo from L1 halo orbit. We report the optical design, tolerance analysis and the optical performance of the breadborad Am
Externí odkaz:
https://doaj.org/article/4703006ddc364e8aa6c146aacd1afc90
Publikováno v:
Applied Optical Metrology IV.
We present a new displacement probe for a gantry-type profilometer to measure the ground surface form. The system is based on heterodyne interferometry with an acousto-optic modulator (AOM) and I/Q demodulation scheme. When the light from the single-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8812f0e2c54f53c1fcdb9626616327d
https://doi.org/10.1117/12.2594367
https://doi.org/10.1117/12.2594367
Autor:
Ho-Soon Yang, Kyong-Soo Hong
Publikováno v:
Journal of the Korean Physical Society. 74:236-240
Rare-earth-doped phosphors for near ultraviolet excitation are under an extensive research for applications to white-light-emitting diodes. In this study, we prepare red-orange emitting samarium-doped rhombohedral tricalcium phosphate particles by us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1baf71ebe1af09bce441bbf50e469017
https://doi.org/10.3938/jkps.74.236
https://doi.org/10.3938/jkps.74.236
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 20:193-199
A transformation algorithm compensating a radius of the probe tip and pre-travel errors is proposed to improve measurement uncertainty of a coordinate measuring machine (CMM). The transformation algorithm does not only compensate a radius of the prob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bc6341a88df26b877ce088b1f2b6e5c
https://doi.org/10.1007/s12541-019-00076-2
https://doi.org/10.1007/s12541-019-00076-2
Autor:
Jong Pil Kim, Miae Kim, Kyong-Soo Hong, Jong Hwa Kim, Myoung Gyu Ha, Ho-Soon Yang, Hyun-Gyu Kim, Jang-Hee Yoon
Publikováno v:
Journal of Non-Crystalline Solids. 505:400-405
Transparent glass of xEu2O3-(100-x)TeO2 binary system is obtained by using the melt-quenching method and especially studied for x = 5 in xEu2O3-(100-x)TeO2 composition. Optical properties such as transmission, excitation, and emission spectra of Eu2O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce9885f73ba7c365ec96724d6ca374d5
https://doi.org/10.1016/j.jnoncrysol.2018.10.030
https://doi.org/10.1016/j.jnoncrysol.2018.10.030
Publikováno v:
Optics and Lasers in Engineering. 152:106947
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20e98a731b45424becf4cd54b31a9533
https://doi.org/10.1016/j.optlaseng.2022.106947
https://doi.org/10.1016/j.optlaseng.2022.106947