• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2016년도 추계 학술논문 발표대회
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• pp.91-92
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• 2016

Red mud is an inorganic by-product produced from the mineral processing of alumina from Bauxite ores. the development of alkali-activated slag-red mud cement can be a representative study aimed at recycling the strong alkali of the red mud as a construction material. This study is to investigate the pore characteristics of alkali-activated slag-red mud soil pavement according to the red mud content. The results showed that the porosity of alkali-activated slag-red mud soil pavement increased but the compressive strength of that decreased as the red mud content increased.

• 미생물학회지
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• 제29권6호
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• pp.361-370
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• 1991

Physical and chemical environmental factors influencing on the outbreak of freshwater red tide by Peridinium bipes (dinoflagellate) in Soyang Reservoir were studied. Red tide occured in the site of inflowing of tributary streams annually, but the extent and severity of red tide varied from year to year. Several environmental factors such as water level, nutrient releasing from sediment, cyst resuspension, and concentrations of $Ca^{2+}$ and $Mg^{2+}$were studiedin relation to development, extent, and duration of red tide. In June of 1989 and 1991, the red tides of Peridinium bipes were very severe, and these red tides coincided with notable and rapid drawdown of lake water in late spring. Nutrient releasing and cyst resuspension by turbulence during drawdown were suggested as main causes of red tide. The quanity of nutrient releasing from sediment and hydrometeorological factors such as run-off and wind may determine the extent and duration of red tide.

• 한국식품영양학회지
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• 제8권2호
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• pp.105-109
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• 1995

This study was devised to observe the inhibitory effects of 3 kinds of petroleum ether extracts (percolation by petroleum ether) from Korean red ginseng, Chinese red ginseng and American white ginseng on a lipolytic action of Toxohormone-L which has been known as lipolytic and anorexigenic factors. Toxohormone-L was obtained by partial purification of the ascites fluid from mice which had been Inoculated with sarcoma-180. The yields of petroleum ether extract from Korean red ginseng, Chinese red ginseng and American white ginseng were 0.64, 0.47 and 0.58 and respectively, indicating that the yield of Korean red ginseng was the highest. In vitro, at the concentration of 2 mg /ml, the inhibition rate of lipolysis by the petroleum ether extract of Korean red ginseng, Chinese red ginseng and American white ginseng were 55.1, 50.0 and 44.9% respectively, and the total inhibitory activity per gram of ginseng material were 18, 12 and 13 unit respectively, indicating that the Korean red ginseng was the most effective in the inhibition of the lipolysis.

• Journal of Ginseng Research
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• 제18권3호
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• pp.151-159
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• 1994

To evaluate the anticarcinogenic effect and its mechanism of red ginseng, the mice were treated with red ginseng and received subcutaneous Bl6 melanoma cell line injection on the back. Tumor incidence was same (100%) both in water and red ginseng-treated groups, but tumor production was delayed in red ginseng-treated group. Survival time was somewhat longer in red ginseng-treated group. The histopathological findings were similar in both groups, but lymphocytic infiltration around the tumor and melanin production in the tumor cells were prominent in the red ginseng-treated group. Flow cytometric analysis on T lymphocytes and natural killer cells revealed increased $T_H$/$T_S$ ratio and increased NK cells in red ginseng-treated group. These results suggest that the anticarcinogenic effect of red ginseng may be exerted by the increased cell-mediated immunity and natural killer cell activity.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.873-875
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• 2003

It was studied the relationship between the red tide occurrence and the meteorological factors, and the satellite monitoring for red tide. From 1990 through 2001, the red tide continuously appeared and the number of red tide occurrence increased every year. A common condition for the red tide occurrence was heavy precipitation 2${\sim}$4 days earlier, and the favorable conditions for the red tide formation were high air temperature, proper sunshine and light winds for the day in red tide occurrence. From satellite images, it was possible to monitor the spatial distributions and concentrations of red tide.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 봄 학술논문 발표대회
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• pp.27-28
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• 2020

In this study, as a measure to recycle red mud, which is a byproduct of the Bayer Process, red mud was manufactured as liquid and recycled without drying and grinding. Previous studies have shown that mechanical performance decreases when liquid red mud is applied to cement concrete. Therefore, in this study, liquid red mud was neutralized with nitric acid and applied to cement paste to examine the properties of cement paste according to the addition of red mud. As a result, the compressive strength of 10% liquid red mud decreased by 37.7% compared to Plain, and 10% liquid red mud indicates similar strength to Plain and restores the strength.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 가을 학술논문 발표대회
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• pp.123-124
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• 2022

In this paper, the characteristics of slag cement mortar added with neutralized liquid red mud with sulfuric acid and reduced pH were reviewed to improve the strength degradation of cement concrete added with liquid red mud. As a result, in the case of compressive strength up to 7 days, the strength of the cement mortar added with liquid red mud tends to increase compared to Plain. This shows that adding liquid red mud to cement mortar tends to increase the initial age strength, and the compressive strength on the 28th shows 74% of Plain when adding non-neutralized liquid red mud and 89% when adding sulfate neutralized red mud. Therefore, it is judged that the compression strength is improved by neutralizing the liquid red mud with sulfuric acid.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 가을 학술논문 발표대회
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• pp.165-166
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• 2022

In this paper, the characteristics of slag cement mortar added with neutralized liquid red mud with nitric acid to reduce pH by neutralizing liquid red mud with nitric acid were reviewed to improve strength degradation of cement concrete added with liquid red mud. As a result, the compressive strength of cement mortar added with liquid red mud was higher than that of Plain on 1 and 3 days, and the strength of red mud neutralized with nitric acid was lower than that of cement mortar added with liquid red mud on 7 days, but the strength was recovered on 28th. It was found that the addition of red mud has the effect of improving the strength in the early age.

• 대한원격탐사학회지
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• 제33권2호
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• pp.213-230
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• 2017

위성기반 적조 탐지 알고리즘들은 특정 해역, 적조 종을 중심으로 개발되어 왔다. 하지만 한반도 주변해역의 빠르고 정확한 적조 감시를 위해서는 한반도 주변의 전 발생 해역과 다양한 적조 종을 대상으로 한 연구가 필수적이다. 본 연구에서는 한반도 주변해역을 대상으로 GOCI 영상을 활용하여 적조 영역의 스펙트럼 특성과 위성기반 적조 탐지 알고리즘의 적합성을 분석하였다. 그 결과, 적조 종들의 클로로필 함량과 적조가 출현하는 해역의 탁도에 따라서 스펙트럼 특성이 달라졌다. 또한 기존 적조 탐지 알고리즘을 GOCI 영상에 적용하였으며, 이를 통해 기존 임계값으로는 적조 영역 추출에 한계가 있음을 알 수 있었다. 이를 개선하기 위해 적조 종들을 클로로필 함량의 차이에 따라 두 그룹으로 나누어 적조 감시 체계를 제시하였다. 총 5 단계를 거쳐 적조 영역과 비적조 영역을 구분하였으며, 적조 속보를 기준으로 했을 경우 최종 추출된 적조영역이 기존 알고리즘으로 추출된 영역에 비해 적절한 결과를 나타냈다. 이러한 적조 감시 체계를 활용한다면 한반도 주변의 모든 해역과 다양한 적조 종에 대한 빠르고 정확한 감시로 인해 효율적인 적조 감시가 가능할 것이다.

• 한국식품조리과학회지
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• 제28권5호
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• pp.623-628
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• 2012

본 연구에서는 가정용 전자레인지를 이용하여 간편하고 신속하게 홍삼을 제조하고 제조된 홍삼의 이화학적 특성을 조사하고자 하였다. 홍삼 제조 방법은 가정용 전자레인지의 '해동기능' 13분(A), 가정용 전자레인지의 '조리기능' 6분(B), 가정용 전자레인지의 '해동기능' 44분(C)로 하였다. 전자레인지로 제조된 홍삼의 외관, 분말의 색, 사포닌 조성, 홍삼 제조 시 용출된 사포닌의 양 등을 기존의 일반 홍삼과 비교하였다. 가정용 전자레인지의 '조리기능' 6분(B)과 '해동기능' 44분(C)으로 만든 홍삼은 일반 홍삼과 유사한 색을 가졌다. 전자레인지에 의한 홍삼 제조 시에는 기존 일반 홍삼 제조에 비해 사포닌 손실이 거의 없었다. 전자레인지 홍삼의 총페놀 함량은 일반 홍삼과 유사하였으며, 전자레인지 홍삼의 진세노사이드 함량은 일반 홍삼보다 높았다. 전자레인지 홍삼(A, B)의 진세노사이드 $Rg_1$, Re, Rf, $Rg_2+Rh_1$, $Rb_1$, Rc, $Rb_2$, $Rb_3$, Rd, $Rg_3$ 함량은 일반 홍삼보다 높았으며, 해동 기능 44분의 홍삼(C)은 진세노사이드 $Rg_1$, Re, $Rg_2+Rh_1$, Rc, $Rb_2$, $Rb_3$, Rd, $Rg_3$의 값이 일반 홍삼보다 높았다. 본 연구에서는 가정용 전자레인지를 이용하여 신속하고 간편하게 고기능성의 홍삼을 만드는 방법을 살펴보았고 이로써 인삼 소비 증진 등이 기대된다.