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pro vyhledávání: '"Kyung-Mee Kim"'
Autor:
Kyung Mee Kim, Sook Hyun Kim
Publikováno v:
SAGE Open, Vol 14 (2024)
There is little research exploring the experiences of using artificial intelligence (AI) conversational agents among low-income older adults living alone. To address this gap, we conducted a qualitative research study, analyzing data from 18 older ad
Externí odkaz:
https://doaj.org/article/dcac42fa2be7494f84e784c351adfcce
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 16, Iss 2, Pp 255-264 (1999)
We calculate the theoretical line profiles in order to investigate the influence of various velocity parameters. Line profiles are calculated by using the exponential velocoty law with two acceleration regions for orbital phases 0.70 and 0.06. From t
Externí odkaz:
https://doaj.org/article/0ef0f5d1f81a48e28040de9f8591763a
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 15, Iss 1, Pp 101-110 (1998)
We calculated line profiles of 32 Cyg with an assumed stromgren sphere at orbital phases 0.06 and 0.78. The wind models with Alfven waves show diminished line profiles compared to those of the models using power velocity laws. The reduced density of
Externí odkaz:
https://doaj.org/article/6423425cd62844baaf62af985007c553
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 14, Iss 1, Pp 24-32 (1997)
We have calculated the velocity distribution of wind driven by Alfvin waves. The assumed initial number density of wind can affect the line profiles because it produces the change in the velocity distribution under the mass conservation. Initial dens
Externí odkaz:
https://doaj.org/article/32d8c4e9680c45e991c6a633833c92e7
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 13, Iss 1, Pp 79-89 (1996)
We calculate the theoretical line profiles for 32 Cyg in order to investigate the influence of various velocity fields. Line profiles are calculated with wind accelerations driven by Alfven waves and described by velocity parameters. The results for
Externí odkaz:
https://doaj.org/article/a77caec2ffec46cf85acb0537629755e
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 12, Iss 1, Pp 14-20 (1995)
We calculated the wind velocities for 32 Cyg in order to understand how influence a damping length on the wind of supergiant driven by Alfven waves. Four cases, ¥ë = 0.9, 1.0, 5.0, the ratio of the damping length to the supergiant's radius, and the
Externí odkaz:
https://doaj.org/article/4680f214ce1d4d6981fc121e21114561
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 10, Iss 2, Pp 146-151 (1993)
The binary system AZ Cas consists of a main sequence star of B type and a late type and a late type supergaint with extended atmospheric. In other to present the effect of mass flow from the supergaint which fills its Roche lobe, line profiles were c
Externí odkaz:
https://doaj.org/article/edb17e076a9741ecaf07534ab76cac90
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 9, Iss 2, Pp 165-170 (1992)
The line profiles of 32 Cyg have been calculated by integrating the equation of transfer numerically. In order to determine the source function the two level atom and complete redistribution were assumed and Sobolev approximation was used. The peaks
Externí odkaz:
https://doaj.org/article/d3750475258b4ea8a7cf5af864a47127
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 9, Iss 1, Pp 120-125 (1992)
The normalized line profiles of VV Cep have been calculated by integrating the equation of transfer. The Sobolev theory was adopted and the wind velocity distribution was assumed to be V(r)=V∞(1-Rc/r)^(1/2). The peaks of the line profiles for the p
Externí odkaz:
https://doaj.org/article/91f80e209bd9493397b47b3b71e46d79
Autor:
Kyung-Mee Kim, Kyu-Hong Choi
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 8, Iss 1, Pp 63-72 (1991)
31 Cyg is a ζ Aur-type eclipsing long-period binary composed a K supergiant and a hot main sequence star. Superginats have massive cool winds with low terminal velocities, and it is generally believed that supergiant's winds are driven by Alfven wav
Externí odkaz:
https://doaj.org/article/872e38f35b534306a2f7ad17f02d5393