• 대한후두음성언어의학회지
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• 제33권2호
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• pp.77-82
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• 2022

Hunminjeongeum was made by the Great King Sejong, and composed of 17 consonant and 11 vowel letters. All the 28 letters were made according to the shape of vocal organ or space at the point of articulation for each letters. This review article focused on phonetic and phoniatric consideration for explanation of the designs of the middle vowel letters, especially three main vowel letters [ • (天, heaven), ㅡ (地, earth), ㅣ (人, human)] using video-fluoroscopic evaluation as well as computed tomography scanning, etc. During articulating / • / sound, a ball-like space at frontal portion of the oral cavity was found, tongue was contracted, and sound was deep (舌縮而聲深). During /ㅡ/ sound, a flat air space between oral tongue and hard palate was created. Tongue was slightly contacted neither deep nor shallow (舌小縮而聲不深不淺). During /ㅣ/ sound, tongue was not contacted and Sound is light (舌不縮而聲淺). Tongue was moved forward making longitudinal oro-pharyngeal air space. So, I'd like to suggest that we had better change the explanation drawing from a philosophical modeling to a more scientific modeling from real vocal tract space modeling during articulating middle vowels of Hunminjeongeum.

• 한국토양비료학회지
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• 제44권5호
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• pp.709-716
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• 2011

남극의 토양환경에 대한 기초자료 확보를 위해서 킹조지섬 바튼반도의 세종곶 (세종기지)을 기점으로 하여 3개의 그룹으로 나누어서 총 13개 지점에서 토양을 채취하여 물리화학적 특성을 조사하였다. 남극 세종기지 주변 토양의 물리적 특성은 전 지점에서 sand가 약 90%이상으로서 silt와 clay에 비하여 매우 높았고, 토성은 모두 사토 (10개 지점)와 양질사토 (3개 지점)로 분류되었으며, 전반적인 토양의 입자별 분포특성은 $2,000-500{\mu}m$ 범위의 굵은 입자는 Group 1 > Group 2 > Group 3 순으로 함량이 높았고, $499-355{\mu}m$ 에서는 지역에 따른 큰 차이가 나타나지 않았고, $355{\mu}m$ 이하의 미세입자는 Group 3 > Group 2 > Group 1 순으로 함량이 높았다. 토양의 화학적 특성은 각각의 지점별로 큰 차이를 나타내었다. pH는 4.5-6.7 범위로 약산성 토양이었고, EC는 $0.06-0.16dS\;m^{-1}$ 범위로 낮았다. T-N, OM 및 T-C의 함량은 #6, #8, #12 및 #13 지점이 높은 농도를 나타내었고, T-P 와 $P_2O_5$의 함량은 #9 와 #12의 지점이 높은 농도를 나타내었다. 따라서 남극 킹조지섬에 위치한 세종기지 주변 토양의 물리화학적 특성을 연구한 결과 각각의 지점별로 다양한 특성을 나타내었다. 본 연구는 단편적인 조사에 의해서 이루어졌으나, 남극반도 및 그 주변 섬들의 토양환경을 이해하는데 도움이 될 것이라고 판단된다.

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 1998년도 한국우주과학회보 제7권1호
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• pp.44.1-44
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• 1998

No Abstract.See Full-text

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2006년도 한국우주과학회보 제15권2호
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• pp.50-50
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• 2006

• 지구물리
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• 제8권3호
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• pp.159-167
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• 2005

Turbulent fluxes of sensible heat and latent heat were analyzed at King Sejong station in the austral summer of 2002 (December) and 2003 (January and February). Monthly mean air temperatures of January and February (2.2oC) were similar to those averaged over 1988 to 2001. Precipitation was less in January and greater in February than those averaged over last 14 years. In December of 2002 and January, there was precipitation primarily when easterly wind blew usually. The frequency of snowfall was equal to or larger than that of rainfall. In the mean while, precipitation primarily in forms of rainfall occurred with westerly wind in February. In addition, while for easterly wind, temperature and humidity was low, temperature and humidity were high in case of westerly wind. Based on flux footprint, measured flux mainly came from within 300 m with maximum of 40 m upwind, indicating the insignificant role of the sea around the study site. Half-hourly downward short wave radiation amounted up to ∼ 1000 Wm-2 and net radiation ranged from -50 to 600 Wm-2. Half-hourly sensible heat flux was positive at daytime with maximum of ∼ 400 Wm-2, except the 27th and 28th in February of 2003 when it was negative all day despite of positive net radiation at short daytime. Latent heat flux was positive with maximum of ∼ 130 Wm-2. Depending on wind direction, the partitioning of net radiation into the sum of sensible heat flux and latent heat flux was larger than 0.8, indicating the strong source of the land surface for the atmospheric heating. The daytime averaged Bowen ratio (=sensible heat flux /latent heat flux) was significantly greater than 1, indicating that sensible heat flux was the main source to heat the atmosphere over the site.

• 분석과학
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• 제21권5호
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• pp.364-374
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• 2008

2000년도에 COMNAP/SCAR에 의해 극지지역의 환경모니터링에 관한 표준기술지침서인 'Antarctic Environmental Monitoring Handbook'이 발간되었다. 이 지침서에 따라 남극세종기지주변지역의 토양시료중의 중금속을 분석하였다. 시료분해방법은 고압산분해 방법을 사용하였고, 분석방법으로는 동위원소희석 유도결합플라스마질량분석법을 사용하여 토양중의 Pb, Cu, Zn 성분을 분석하였다. 분석방법의 정확성을 확인하기 위해 표준시료인 NIST 2702를 분석한 결과 인증값의 99.5~100.8% 범위내에서 일치하였다. Chelex 100 이온교환수지를 사용하여 간섭이온을 제거하기 위해 매질을 분리하였다. 측정결과 인위적오염이 예상되는 기지주변지역의 중금속의 평균농도는 각각 Pb 332.9 mg/kg, Cu 95.6 mg/kg, Zn 115.3 mg/kg로 나타났으며, 기지에서 멀리 떨어진 지역의 평균농도는 각각 Pb 28.1 mg/kg, Cu 101.8 mg/kg, Zn 115.6 mg/kg로 나타났다. Pb 농도는 기지주변지역과 멀리 떨어진 지점에서 현저한 차이를 보였다.

• 한국미생물학회:학술대회논문집
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• 한국미생물학회 2006년도 International Meeting of the Microbiological Society of Korea
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• pp.97-99
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• 2006

A chitinase-producing bacterium strain KCTC10714 was isolated from sea sand around the King Sejong Station, King George Island in Antarctica. It was identified as Sanguibacter sp., based on the biochemical properties and 16S rRNA gene sequence. KCTC10714 chitinase showed enzyme activity in broad range of temperature from 0 to $70^{\circ}C$. At $0^{\circ}C$, it showed 70.9% of relative activity in comparison with 100%. The chitinase gene of KCTC10714 was cloned using inverse PCR cloning method. KCTC10714 chitinase gene was designated as chi21702. The ORF of chi21702 consisted of 1,449 bp (482 amino acid), and contained ChtBD3 (a chitin/cellulose binding domain) and an active site for chitinase family 18.

• 천문학회보
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• 제32권2호
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• pp.70.2-70.2
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• 2007

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2009년도 한국우주과학회보 제18권1호
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• pp.44.2-45
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• 2009

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 2009년도 한국우주과학회보 제18권1호
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• pp.43.2-43.2
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• 2009