Zobrazeno 1 - 10
of 401
pro vyhledávání: '"J. G. Rhee"'
Autor:
K.-I. Seon, I.-S. Yuk, U.-W. Nam, H. Jin, J.-H. Park, J.-G. Rhee, K.-S. Ryu, D.-H. Lee, H.-S. Oh, K.-K. Kong, W. Han, K.-W. Min, J. Edelstein, E. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 19, Iss 4, Pp 283-292 (2002)
Electronic boards of Far-ultraviolet IMaging Spectrograph (FIMS) should be designed to maintain their performances, and their temperatures should be remained within the allowed temperatures in operational environments. Thermal analysis at the electro
Externí odkaz:
https://doaj.org/article/ae34eed9223341f29b8c3735f0faae53
Autor:
U. W. Nam, J. G. Rhee, K. N. Kong, Y. S. Park, K. C. Jin, H. Jin, J. -H. Park, I. S. Yuk, K. I. Seon, W. Han, D. H. Lee, K. S. Ryu, K. W. Min, J. Edelstein, E. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 19, Iss 4, Pp 273-282 (2002)
We describe some performance of the detector electronics system for the FIMS (Far-ultraviolet Imaging Spectrograph) mission. The FIMS mission to map the far ultraviolet sky uses MCP (micro-channel plate) detectors with a crossed delay line anode to r
Externí odkaz:
https://doaj.org/article/f1a8c5ccf14f4433a03100b2c1c2ae2d
Autor:
J. G. Rhee, U. W. Nam, K. N. Kong, D. H. Lee, J. H. Shin, I. S. Yuk, H. Jin, K. S. Ryu, K. I. Seon, K. I. Kang, J. H. Park, K. W. Min, W. Y. Han, W. B. Lee, E. korpela, J. Edelstein
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 19, Iss 1, Pp 57-66 (2002)
We designed two-dimensional position sensitive MCP(microchannel plate) detector for FIMS, which is composed of MCP, delay line anode, and delay line readout electronics. And also, we fabricated and tested for the operation stability and resolution of
Externí odkaz:
https://doaj.org/article/f5e2666aac92438581ada9d02e49aeff
Autor:
K.-S. Ryu, I.-S. Yuk, K.-I. Seon, Y.-W. Lee, U.-W. Nam, J.-H. Shin, S.-J. Hong, D.-H. Lee, H. Jin, S.-H. Oh, J.-G. Rhee, K.-W, Min, W. Han, J.-H. Park, J. Edelstein, E. J. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 18, Iss 3, Pp 239-248 (2001)
Far-ultraviolet IMaging Spectrograph (FIMS) is the main payload of the first Korean scientific satellite, KAISTSAT-4, which will be launched in 2002. Among the optical parts, parabolic cylinder mirror does not have any heritage from previous astronom
Externí odkaz:
https://doaj.org/article/3b5092491bd44b72863674bf8e6d897f
Autor:
K.-I. Seon, I.-S. Yuk, K.-S. Ryu, J.-H. Park, H. Jin, J.-H. Seon, S.-H. Oh, J.-G. Rhee, D.-H. Lee, U.-W. Nam, W. Han, K.-W, Min, W.-B. Lee, J. Edelstein, E. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 18, Iss 3, Pp 219-230 (2001)
Far-ultraviolet IMaging Spectrograph (FIMS) is under development as the main payload of the first Korean science satellite, KAISTSAT-4. An extensive sensitivity and error budget analyses of FIMS optical system have been performed. As an way of estima
Externí odkaz:
https://doaj.org/article/341db3b858c944dc9af3ff96b89d654f
Autor:
Uk-Won Nam, Kwangsun Ryu, Dae-Hee Lee, Eric J. Korpela, Jerry Edelstein, Wonyong Han, Michael Lampton, J. G. Rhee, Kyoung-Wook Min, J. Hull, Oswald H. W. Siegmund, Ho Jin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 575:527-531
A compact far ultraviolet (FUV) spectrograph has been developed and applied to space observation on a micro-satellite. The dual channel imaging spectrograph utilized two micro-channel plate (MCP) detectors with a single crossed delay line (XDL) anode
Publikováno v:
Solar Energy. 80:1580-1587
In this paper, we propose a new configuration of solar concentration optics utilizing modularly faceted Fresnel lenses to achieve a uniform intensity on the absorber plane with a moderate concentration ratio. The uniform illumination is obtained by t
Autor:
Sharon R. Jelinsky, Jorg Fischer, Kwang-Il Seon, Jang-Hyun Park, Seung-Han Oh, Raymond T. Chung, Jeffrey S. Hull, Uk-Won Nam, J. G. Rhee, Wonyong Han, J. Adolfo, Dae-Hee Lee, Kwangsun Ryu, Jong-Ho Shinn, Michael Feuerstein, Ken McKee, K. Nishikida, In-Soo Yuk, Jerry Edelstein, Eric J. Korpela, Peter Berg, Mark Bowen, Kyoung-Wook Min, Ho Jin
Publikováno v:
The Astrophysical Journal. 644:L159-L162
The SPEAR (or 'FIMS') instrumentation has been used to conduct the first large-scale spectral mapping of diffuse cosmic far ultraviolet (FUV, 900-1750 AA) emission, including important diagnostics of interstellar hot (10^4 K - 10^6 K) and photoionize
Publikováno v:
Apoptosis. 10:219-231
Apoptosis is characterized by chromatin condensation, DNA cleavage, redistribution of phosphatidylserine, and apoptotic body formation via an actin-dependent process. We describe a novel form of the execution phase of apoptosis in human multiple myel
Autor:
W. Han, K. Min, Eric J. Korpela, J. G. Rhee, Kwangsun Ryu, S. H. Oh, K. I. Seon, Jerry Edelstein, Hana Jin, Uk-Won Nam, In-Soo Yuk, J. Park, Dahae Lee
Publikováno v:
Publications of The Korean Astronomical Society. 18:87-95
FIMS (Far-ultraviolet IMaging Spectrograph) is the main payload of STSAT-1 satellite which was successfully launched on September 27, 2003. The optical system of FIMS consists of two sets of parabolic cylinder mirror, slit, ellipsoidal reflection gra