• KOREAN JOURNAL OF CROP SCIENCE
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• v.32 no.3
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• pp.256-267
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• 1987

Changes of light intensity under and above shading materials were measured at different relative light intensity(R.L.I. 5% of common straw shading, 15% of polyester shading and 20% of polyester shading at 12 o'clock on clear day) and lines(lst, 3rd and 5th lines) on clear and cloudy days in 5-year -old ginseng plant populations. Rates of photosynthesis and respiration, microclimate and root yield were also measured in field. Air temperature of R.L.I. 5% were lower 2$^{\circ}C$ compared with R.L.I. 15% and lower 3$^{\circ}C$ compared with R. L. I. 20% from 12 to 14 o'clock on clear day, but there were not difference among R. L. I. on cloudy day. Relative humidity of R. L. I. 5% were higher 5% compared compared with R.L.I. 20% from 10 to 14 o'clock on clear day, R. L. I. on cloudy day. Light intensity were below 5,000 lux at R.L.I. 5%, about 15,000 lux at R.L.I. 15% and about 20,000 lux at R.L.I. 20% from 10 to 15 o'clock on clear day. But light intensity were below 3, 000 lux at R. L. I. 5% about 10, 000 lux at R. L. I. 15% and about 15, 000 lux at R. L. I. 20% from 10 to 15 o'clock on cloudy. Photosynthetic rate of R.L.I. 15% and R.L.I. 20% were higher compared with R.L.I. 5% on clear and cloudy days. Tatal photosynthesis in a day were increased by R.L.I. 5%, 20%, 15% in turn on clear and cloudy days. R. L. I. 15% and 20% were not notable difference of photosynthetic rates among lines but R. L. I. with R. L. I. 15%, and higher 8% but there were not different among 5% was notable difference of one. Root fresh weight were increased by R.L.I. 5%, 20% and 15% in turn and R.L.I. 15% and 20% were not notable difference of root yield among lines but R. L. I. 5% was notable difference of one.

• Proceedings of the Korea Water Resources Association Conference
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• 2008.05a
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• pp.1853-1857
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• 2008

본 연구는 국내하천을 대상으로 하천의 단면 형상 및 수위, 유량자료를 실측하여 유량 변화에 따른 조도 계수를 산정하고, 하상 재료와 하천 규모에 따른 조도계수를 비교 분석하였다. 실측 자료는 다양한 유량 변화 자료를 얻을 수 있는 2007년 6월에서 9월 사이에 이루어졌으며, 대상 하천의 조도계수는 미국 지질조사국의 NCALC 모형을 이용하여 산정하였다. 조사 지점은 하상재료가 거석으로 이루어진 섬진강(곡성), 호박돌로 이루어진 평창강(방림), 달천(괴산), 홍천강(서면), 금강(현도1, 현도2)과 자갈 모래로 구성된 금강(이원) 지점, 모래하천인 내성천(평은) 그리고 도시하천인 탄천(복정)으로 총 9개 지점에서 이루어졌다. 조사 결과 모든 하천의 조도계수는 유량 증가에 따라 감소하면서 일정한 값으로 수렴하는 경향을 보였으며, 하상 입경과 규모에 따라 서로 다른 범위의 조도계수를 나타냈다. 가장 큰 조도계수의 범위를 보이는 곳은 하상재료가 큰 섬진강(곡성)과 홍천강(서면), 달천(괴산) 지점이었으며, 모래하천인 내성천(평은)과 도시하천인 탄천(복정)은 가장 작은 조도계수의 범위를 보였다. 또한, 하상 재료 특정입도($d_{16}$, $d_{50}$, $d_{84}$, $d_w$)가 흐름저항에 미치는 영향을 분석하기 위하여 Limerinos에 의해 제안된 상대조도를 분석한 결과, 하상재료의 특성이 상이하게 다른 섬진강(곡성)과 내성천(평은), 탄천(복정)을 제외하고 하상재료와 상대조도 사이에서의 관계식을 산정할 수 있었다.

• 정보보호뉴스
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• s.138
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• pp.46-49
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• 2009

흑인으로서는 최초로 대중적 사랑을 받았던 유명한 권투선수 조 루이스는 빈정거리듯 상대 선수에게 말했다. "도망칠 수는 있지만 숨을 곳은 없으리라!" 일단 링에 올라서면 상대의 공격을 피할 수는 있지만 상대를 따돌리고 온전히 숨을 곳은 없다는 것이다. 어쩌면 오늘날 우리 모두는 '정보화 시대'라는 링 위에 이미 올라선 것인지도 모른다. 우리 모두의 개인정보는 백척간두에 놓였다. 달아나고 피해 볼 수는 있겠지만 안전하게 숨을 곳은 없는 것이다.

• Korean Journal of Medicinal Crop Science
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• v.5 no.1
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• pp.28-35
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• 1997

Biosystematic study on Euphorbia ebracteolata Hayata was carried out by comparing ecology and morphology between wild and cultivated ones. As the result of this study, cultivation method about this medicinal plant was established, and ecologically, the shape of leaf or root of this plant appeared to be dependent on ecological environment while the hair of ovary and the involucel were considered to be fixed characters. From the investigation of natural conditions of habitats, this plant was considered to be a facultive sciofytes and a day neutral plant.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2003.11b
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• pp.238-240
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• 2003

분포가 확대되어 가고 있는 미국자리공의 서식지 환경요인과 실생의 정착과정을 추적하였다. 그 결과 광 구배에 따라 기온의 차는 크지 않았으나 지온의 일교차는 4월을 제외하고 상대조도에 따라 크게 나타났다. 실생 출현은 100%에서는 61개체, 33%에서는 58개체였지만 8%에서는 5개제로 적었을 뿐만 아니라 출현한 실생도 모두 생존하지 못하였다. 생장은 상대조도 100%에서 가장 높았으며, 8%에서 출현한 개체들은 거의 생장하지 못하였고 줄기직경의 경우는 오히려 감소를 하였다. 따라서 미국자리공의 발아는 8%지역에서도 가능하였지만 광량의 부족으로 인하여 지속적인 물질생산을 할 수없어 생존할 수 없는 것으로 판단된다.

• Korean Architects
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• no.11 s.200
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• pp.67-68
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• 1985

• Korean Journal of Food Science and Technology
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• v.35 no.1
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• pp.52-56
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• 2003

Physicochemical properties of freeze-dried upper and middle parts of Korean raw anther were investigated and analyzed. Moisture contents of upper part and middles part were 51.7 and 63.6%, respectively. Contents of crude protein, crude fat, crude ash, and carbohydrates of upper part of antler were 66.91, 3.52, 22.70, and 6.87%, respectively. Whereas those of middle part were 52.64, 2.50, 34.54, and 6.07, respectively. Phosphorous content was the highest in both upper (2562.0 mg%) and middle (2536.0 mg%) parts. Glycine (7597.9 mg%) and glutamic acid (5769.4 mg%) were major amino acids in upper part, glycine (9612.0 mg%) and proline (5906.3 mg%) in middle part were the major amino acids. Free sugars including fructose, glucose, sucrose, and maltose were not detected. Palmitic acid (upper part 30.83%, middle part 32.23%) was the major fatty acid in crude fat of both upper and middle parts. Vitamin A (retinol) contents of upper and middle parts were 16.40 and 12.32 IU/100 g, respectively. Vitamin C was not detected. Upper part of antler showed the highest redness (8.18), whereas middle part showed the highest lightness (71.72) and yellowness (8.13). The color difference $({\Delta}E\;27.11)$ between upper part and middle part was distinguished remarkably.

• Economic and Environmental Geology
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• v.51 no.5
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• pp.463-471
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• 2018

In this paper, we review previous studies on the relative sea-level changes in the Yellow Sea during the Holocene to comprehensive understand the various research results. Currently, it is reported two theories : 1) the Holocene sea-level has never been higher than the present-day level; and 2) sea-level have reached highstand during mid-Holocene, followed by slow lowering to that of the present. The first theory yields a curve that is similar to a climate-change-related eustatic sea-level curve. However, in reality, most of the relative sea-level fluctuation resulted from land uplift or subsidence. The second theory yields a curve that is fairly coincident with a relative sea-level curve indicative of continental margins being located away from the ice sheets(i.e., far-field), and is considered as an effect of GIA(Glacio Isostatic Adjustment) and gravitational attraction. Based on detailed review of previous researches, we realized that they sourced the same papers, but obtained different results because they selectively chose and added the data. The data used to derive the second theory pertain to the northern Gunsan region, which is located within the western area of the Chugaryeong fault. Thus, we believe that the sea-level curve for the second theory is only representative of the area north of Gunsan, which is subject to GIA and tectonic deformation. Although the relative sea-level curve for the west coastal area is comparable to that for the far-field continental margin region, it is necessary to evaluate local tectonic activities as suggested by active seismicity in the west coastal area and the more than 400 faults currently existing in on the Korean Peninsula.

• Journal of the Korean Institute of Educational Facilities
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• v.10 no.1
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• pp.23-43
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• 2003

• Journal of Chest Surgery
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• v.34 no.4
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• pp.275-295
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• 2001