• Journal of Astronomy and Space Sciences
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• v.9 no.1
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• pp.1-10
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• 1992

Isophote map and luminosity profile of the barred spiral galaxy NGC 7755 are obtained from PDS scanning of PAL 0-471 plate. From the isophote map, NGC 7755 can be classified SBbc(r) with asymmetric bar ring. We get several physical parameters $({M_T}^\circ,U(R)_{CB},U(R)_{CD},D/B,C_{jj},M/L)$ of NGC 7755 from the analysis of the luminosity distribution.

• Journal of Astronomy and Space Sciences
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• v.7 no.1
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• pp.47-55
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• 1990

From the study of a spectroscopic plate of $\varepsilon$ Auriage, we can measure the radial velocity and the relative abundance for this eclipsing binary. Calculated radial velocity is -37Km/s and the abundance of [Fe] is estimated as -1.5.

• Bulletin of the Korean Space Science Society
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• 2007.10a
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• pp.45.1-45.1
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• 2007

• The Bulletin of The Korean Astronomical Society
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• v.30 no.1
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• pp.66.1-66.1
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• 2005

• The Bulletin of The Korean Astronomical Society
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• v.34 no.1
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• pp.44.2-44.2
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• 2009

• 한국정보디스플레이학회:학술대회논문집
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• 2009.10a
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• pp.826-829
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• 2009

The authors report on the fabrication of p-type depletion mode inverter that composed of two pentacene based thin-film transistors (TFTs) on several dielectric surfaces. We use shift of threshold voltage depends on pentacene-thickness.

• The Magazine of the IEIE
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• v.44 no.1
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• pp.49-60
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• 2017

• 월간산업보건
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• no.7 s.243
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• pp.74-75
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• 2008

• Proceedings of the KIEE Conference
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• summer
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• pp.860-862
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• 2004

본 논문에서는 유전알고리즘과 유한요소법을 이용하여 BLDC 전동기의 코깅 토크를 최소화하기 위한 최적화 설계 방법을 제안하였다. 먼저 유전알고리즘을 이용하여 BLDC 전동기의 설계 변수를 추론하고, 유한요소법으로 코깅 토크를 구하였다. 유전알고리즘과 유한요소법을 사용함으로써 BLDC 전동기의 코깅 토크가 최소화 되는 영구자석의 형상을 전 영역에서 빠른 시간내에 구할 수 있었다.

• Bulletin of the Korean Space Science Society
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• 1993.10a
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• pp.19-19
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• 1993

We have developed a new method to simulate the observed color magnitudediagrams for Galactic globular clusters. The model calculations include all evolutionary phases- from zero age main sequence to asymptotic giant branch. Using these models, we can simulate directly the observational errors and sampling effect and also can examine the stellar evolution theory in more$.$ realistic way. Implications of these model calculations on the recent space observations of globular clusters and other systems will be discussed.