Zobrazeno 1 - 10
of 52
pro vyhledávání: '"J. G. Rhee"'
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:
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
Autor:
Hui-Kyung Kim, So-Myoung Park, Ensang Lee, Dan Keun Sung, J. G. Rhee, Junwook Lee, Jongho Seon, Kyoung-Wook Min, YH Jung
Publikováno v:
Journal of Spacecraft and Rockets. 40:875-881
Floating potentials for a microsatellite KITSAT-3 are measured with an electron temperature probe. The orbit of the satellite is 730-km altitude, sun-synchronous, with a fixed local time of descending node near 1200 hrs local time. The dimension of t
Autor:
J. G. Rhee, W. Han, J. Edelstein, Dong-Hun Lee, In-Soo Yuk, K. Min, Kwangsun Ryu, K. N. Kong, K. I. Seon, Uk-Won Nam, K. C. Jin, Y. S. Park, J. Park, E. Korpela, Ho Jin
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 19, Iss 4, Pp 273-282 (2002)
과학위성 1호의 주탑재체인 원자외선 분광기의 검출기 전자부에 대한 특성을 분석하였다. FIMS (Far-ultraviolet Imaging Spectrograph)는 교차 지연선 양극을 가진 MCP(micro-channel plate)를 사용하여 입사
Autor:
Jang-Hyun Park, Uk-Won Nam, H.S. Oh, Kwang-Il Seon, J. G. Rhee, Ho Jin, Wonyong Han, Jerry Edelstein, Kyoung-Wook Min, Eric J. Korpela, Kwangsun Ryu, K.K. Kong, In-Soo Yuk, Dong-Hun Lee
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