• 한국문화재보존과학회:학술대회논문집
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• 2006.04a
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• pp.129-133
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• 2006

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2000.05a
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• pp.220-222
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• 2000

한반도 서해 중부역에 위치한 금강 수계는 국내 4대강의 하나로서 발원지인 전라북도 진안에서 군산하구까지 총 유로연장이 약400km에 달하며, 집수면적은 9880$\textrm{km}^2$으로 담수유출량은 6.4$\times$$10^{9}$ton/year에 이른다. 1988년에 농업용수와 공업용수의 안정적 확보를 목적으로 전라북도 옥구군 성산면 성덕리와 충청남도 서천군 마서면 도산리를 연결하는 총 1,841m길이의 금강하구둑이 건설되었고, 1994년 8월 하구언 갑문이 반 영구적으로 폐쇄됨에 따라 하구해역의 환경변화가 크게 나타날 것으로 예상되었다. (중략)

• KOREAN POULTRY JOURNAL
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• v.40 no.11
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• pp.116-119
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• 2008

최근 종계업계가 병아리 가격이 낮게 형성되면서 장기적인 불황을 벗어나지 못하고 있다. 원종계 쿼터제가 현실적인 난제에 부딪치면서 실효를 거두지 못하는데도 원인이 있지만, 종계장 등록이 되지않은 열악한 시설임에도 불구하고 무분별하게 사육, 병아리를 생산하다보니 과잉생산으로 인한 불황이 깊어지고 있는 것이 현실이다. 본고는 좋은 품질의 병아리 생산을 최우선 목표로 종계장과 부화장을 운영하고 있는 보령축산(대표 윤성희)을 찾아 사육현황과 향후 계획 등을 취재하였다. 현재 보령축산은 3곳의 종계장(보령 웅천, 천북, 청라)에서 23만수(건평 18,000평) 규모의 종계를 관리하고 있으며, 부화는 2곳(보령 청라, 남포)에서 주당 60만수를 생산할 정도로 큰 규모를 자랑하고 있다. 육성농장은 충남 서천에 8만수 규모, 보령 남포에 2만수 규모로 총 10만수 규모가 전체 농장의 물량을 대주고 있다.

• Proceedings of the KSR Conference
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• 2006.11b
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• pp.1340-1347
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• 2006

During excavation in seocheon tunnel, sudden groundwater inundation occurred in complex hydro-geological environments prevailing in underground tunnel. Large volumes of groundwater flowed into tunnel at STA 54km600. The authors have provided a comprehensive background to hydro-mechanics of groundwater with a geological analysis, ground investigation, hydro- mechanical modelling etc. To reinforce tunnel, we have applied the TAS grouting and the steel multi-layer grouting, and comfirmed the effects of reinforcement.

• Plant Journal
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• v.16 no.1
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• pp.38-43
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• 2020

In this study, Seochon Thermal Power Plant No.1 for anthracite coal was tested to find the proper operation range of limestone slurry pH in the absorber tower which can be operated continuously in compliance with the Air Quality Preservation Act and Seocheon Thermal Power Division's internal regulation, sulfur dioxide average emission regulation. When operating the sulfur dioxide concentration [ppm] in the combustion gas flowing into the desulfurization absorption tower at 370, 400, 460 and 550 ppm while the main operating elements such as the flow rate of the combustion gas were fixed, the proper slurry pH Were 4.4, 4.5, 4.8 and 5.1, respectively. Therefore, it is recommended to operate with the correlation equation, R_pH=0.004×C_in+2.93 derived using sulfur dioxide and the appropriate slurry pH.

• Korean Journal of Medicinal Crop Science
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• v.7 no.3
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• pp.213-217
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• 1999

Seed coating and pelleting techniques have been used in many crops to improve the germination vigor of tiny and light seeds. Cultivated Chinese-foxglove (Rehmannia glutlnosa) has been infected by various types of virus derived from vagetative propagation of rootstock. Seed characteristics and alginate-coated seed germination rate have been investigated to get basic information for healthy seedling production through seed propagation. Chinese-foxglove showed different numbers of seeds per pod from 61 in Seocheon local to 207 in Jiwhang 1 and 1,000grain weight also varied from 70mg of Seocheon local to 130mg of Jiwhang 1. Seeds of Chinese-foxglove has dormancy because that seed collected last year more stimulated than that of this year at germination test. Optimum alginate concentration for pellected seeds germination was 2%.

• Journal of Environmental Science International
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• v.7 no.3
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• pp.375-382
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• 1998

The characteristics of the basic statistics and steadiness of wind and the monthly normality test of surface wind distribution are investigated by using the observed wind data compiled from 10m meteorological observation tower at Seocheon district, where is located In the western coastal region of Korea. during the period from Feb. 7, 1996 to Feb. 7 1997 The northerly is appeared to be even in August and Sepember due to the influences of loccal circulation such as land and sea breeze. The correlation coefacients between two wind components are seemed to be positive during the in the period of from June to September and negative from October to April, respectively The constancy of wand Is high In shifts to lower values Increasing sampling time. It is found from monthly normality test based on the skewness and the excess of kurtosis coefficients that the distribution of zonal wind component is normal In spring and meridional one Is normal in late summer and early autumn.

• Journal of Life Science
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• v.30 no.2
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• pp.186-190
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• 2020

Halophytes are physiologically adapted to withstand the high salinity of water and saline soil. This study was conducted to elucidate the distribution of halophytes and hydrophytes in the Jungseonpo River (Sacheon-ci, Gyeongsangnam-do), Gwingok River (Hadong-gun, Gyeongsangnam-do), and Gwangyangseo River (Gwangyang-ci, Jeollanam-do) in Korea. A total of six species of halophytes and ten species of hydrophytes were collected in the Jungseonpo River. Halophytes in the Gwingok River and Gwangyangseo River numbered five species and 11 species, respectively. Hydrophytes in the Gwingok River and the Gwangyangseo River numbered 13 species in five families and 16 species in eight families, respectively. Of these, Phacelurus latifolius, endemic to the west and south coast of Korea, is an endangered species in the context of investigating the ecology and conservation of halophyte species. Many individual halophyte species have been diminished due to reduced habitable area caused by sand dune destruction. The rivers in the three areas on the south coast were also different in terms of distribution of salt plants due to regional differences, and they were all different from the well-developed west coast. Seven species, including Rosa wichuraiana, have been added to South coasts compared to past records.

• Geotechnical Engineering
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• v.8 no.3
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• pp.51-60
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• 1992

This paper represents the physical and engineering characteristics of admixed liners obtained from several laboratory tests. Fly ash and weathered granitic soil are selected as primary materials, and bentonite and cement are used as additives. The results show that the maximum dry density reaches peak values at 5% and 25% of bentonite for Seochon and Samchonpo fly ash respectively, and for the weathered granitic soil, the maximum dry density increases continuously as the amount of bentonite increases. The strength of the admixed materials is not sensitive to the bentonite content, although it increases when the additives is cement. The required amount of bentonite to reach the hydraulic conductivity less than 10-7cm/sec are 18, 30, 10% of the sample weights for Seochon and Samchonpo fly ashes and the weathered granitic soil. The amount of additives show significant differences and depend on the grain size and their distributions and the amount of fine content in the primary materials

• Journal of Conservation Science
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• v.34 no.1
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• pp.31-37
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• 2018

It was estimated that wooden warehouses excavated from Bongseon-ri site in Seocheon were built around the 5th century according to the soil layers and construction methods of earthen structures. In order to identify the exact date, three wooden materials (BSMG 01, 06, and 12) from wooden warehouses were analyzed through radiocarbon dating using wiggle match. The outermost ring of BSMG 01 produced a radiocarbon date (95.4% confidence interval) of AD 431~551, BSMG 06 produced a date of AD 460~570, and BSMG 12 produced dates of either AD 240~430 or AD 490~510. The common age of the three wooden materials was identified as AD 490-510 and coincided with the original estimated archaeological age. Therefore, this study proved the accuracy of radiocarbon dating using wiggle match.