• 한국항만경제학회지
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• 제35권2호
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• pp.21-36
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• 2019

한국은 지속적인 성장을 위해서는 러시아, 몽골, 유라시아 등의 북방 경제권에 진출하는 것이 역대정부의 일관된 정책이다. 북방경제는 에너지 수요가 많고 산업이 발달한 우리나라와 상호보완적 경제구조로 시너지 효과를 기대할 수 있다. 또한 러시아 신동방정책, 중국 일대일로, 몽골 초원의 길 이니셔티브 등 중국-러시아-몽골 경제회랑이 가속화되는 기회가 만들어지고 있다. 한국 정부는 역대 정부가 추진하였던 북방정책을 계승하고 그간 미진하였던 북한을 포함하여 경제협력과 평화구축이라는 목표를 달성시키기 위한 신북방정책을 추진하고 있다. 국제적인 경제협력을 위해서는 필연적인 운송이 수반되기에 육로보다 유리한 해상운송의 수요가 증가되기 때문에 이에 대한 대비가 무엇보다 필요하다. 해상운송의 결절점인 항만을 보유하고 있는 한국의 항만도시는 신북방정책에 대비한 준비가 필요하다. 본 연구에서는 서해안 시대의 서산 대산항을 장기적인 발전을 기획하면서 신북방정책에 맞추어 북한의 개방발전 방안을 고민하였다. 정부간 및 지방도시간의 국제협력이 요구되기 때문에 서산시의 전향적인 태도와 함께 항만운영체와 협력이 필요하다. 이러한 대응을 적극 이행한다면 현재 액체에너지화물 중심항만의 서산 대산항이 신북방정책의 거점이 될 수 있으며 한반도에서는 서산 대산항이 명실상부한 서해안평화경제 허브로서 입지를 다지는 기회가 될 것이다.

• 한국수산경영학회:학술대회논문집
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• 한국수산경영학회 2006년도 추계학술발표회
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• pp.1-22
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• 2006

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 추계학술발표논문집
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• pp.1054-1058
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• 2009

본 논문은 호수 바닥이 오염된 서산 부남호의 수문을 개방했을 때 예상되는 오염물질의 확산에 관한 것이다. 몇 가지 각본을 가지고 컴퓨터 시늉을 한 결과 적절한 시간 간격을 주고 방류할 경우 천수만에 위치한 가두리 양식장에 지장이 없음을 알았다.

• 대한수학회보
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• 제32권2호
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• pp.239-249
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• 1995

Let $V = (v_1, v_2, \cdots)$ be a sequence of positive integers arranged in nondecreasing order. We define V to be complete if every positive integer n is the sum of some subsequence of V, that is, $$ (1.1) n = \sum_{i=1}^{\infty} a_i v_i where a_i = 0 or 1.

• 물과 미래
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• 제11권1호
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• pp.59-68
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• 1978

According to the simplified Gringorten's method of extreme values from data samples, daily maximum precipitation and return period at several stations in the central part of Korea were estimated. And also, it was known that the distribution of daily maximum precipitation of Sogcho, Chuncheon, Kangreung, Seoul, Inchon, Suwon, Seosan, Cheongju and Daejeon area belong to an exponential type of distribution.

• 한국응용과학기술학회지
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• 제15권3호
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• pp.13-19
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• 1998

This study was carried out to investigate characteristics and Pb(II) removal effect of natural Muan, Seosan, Kangjin clays in the batch mode test to develope the low-priced treatment agent of wastewater which contain heavy metals in order structural, optical properties and chemical compositions of natural clays from domestic have been investigated to have high specific surface area and have minerals such as $SiO_2$ and $Al_2O_3$. As a result, removal effects of Pb(II) ions on clays were reached at equilibrium in aqueous solutions by stirring about 20minutes. The removal effect of Pb(II) ions was best for Seosan clay than Muan or Kangjin clays in terms of fixed time. The results show the possibility of continuous treatment system of wastewater which contain heavy metals by using natural clays from domestic.

• The Korean Journal of Ecology
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• 제20권1호
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• pp.9-14
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• 1997

Wintering behavior of mallards Anas platyrhynchos was studied from November 1995 to February 1996 at wintering habitats : Seosan reclaimed site, Oksan reservoir, and Kum river in Korea. The population of wintering mallards in maximum count was about 35, 000 at Sosan, 500 at Oksan and 1, 680 at Kum river, respectively. In Seosan area, mallards spent more time on water surface. In Kum river and Oksan reservoir, however, they spent more time in riversides. During the daylight hours, mallards spent more time in riversides and ground as the time passes by in the area. Behavioral patterns varied with habitat type, by days and months. Resting was a major time expenditure of mallards on water surface and riversides, and feeding occured occasionally on the ground. During the daytime, feeding and resting activities increased as time passed toward dusks However, time spendings for locmotion and comfort were decreased when it is close to the sun sets. Major disturbance factors within the habitats were identified the local traffics of humans, boats, aircrafts and motor vehicles. Among them, human was the most frequently affecting disturbance factor to the wintering mallards.

• 한국동물위생학회지
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• 제32권3호
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• pp.209-213
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• 2009

This survey was carried out to investigate the prevalence of bovine coronavirus (BCV) infection for the calves in Seosan-Taean Area. A total of 75 samples were collected from fecal swab to detect BCV by RT-PCR Results obtained through the survey were as follows; By RT-PCR(455bp) BCV was detected from 13 of the 75 sample of fecal swab from calves. The calves under 3 month showed the highest BCV detection rate.

• 한국환경과학회지
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• 제12권2호
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• pp.163-170
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• 2003

Seosan A, B area is located on 36°42' of north parallel and 126°27' of east longitude. It consisted of broad artificial lakes and reclaimed agricultural lands; there is Ganwalho lake in A area and Bunamho lake in B area. Total birds surveyed four times in 2001 at the A area are 105,580 of 11 orders, 28 families, 89 species. Among them, resident species were 21 species including Pica pica. Twenty species including Cuculus canorus were summer migrants, and 30 species including Platalea leucorodia were winter migrants. Seventeen species including Limosa limosa were occasionally species. And Rostratula benghalensis was an unconfirmed species. Species diversity index (H') was 0.72; species equally common index (e/sup H'/) was 2.06. In January, maximum observed 102,121 individuals. However in July 52 species were observed most variously. There were total 81,152 birds observed with 11 orders, 22 families, and 71 species at the B area. Fifteen species including Falco tinnumculus were resident species. Summer migrants were 18 species including Ixobychus sinensis. Winter migrants were 25 species including Ciconia boyciana. Thirteen species including Tringa glareola were occasionally species. Species diversity index (H') was 0.281; species equally common index (e/sup H'/) was 1.325. In January, maximum observed 78,433 individuals. However in Silly 42 species were observed most variously.

• 농촌계획
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• 제23권3호
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• pp.1-12
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• 2017

The purpose of this study is to reveal network potential among agricultural villages focused on landscape and amenity resources. For this study, we conducted Social Network Analysis (SNA) utilizing existing landscape resource database. As a result of the study, major landscape types shared among villages were found for each city. For example, agricultural and residential landscapes were identified as major types for Danjin city. Add to major landscape resources, in Dangjin city, Habduk village were recognized as a core. Seokmun, Daehoji, Woogang, and Sunseong villages were widely found as the sub core group. For Seosan city, Jigok, Palbong, and Kobuk villages were widely recognized as core group. Most of villages which indicated the highest degree centrality were superior in terms of the number of total landscape resources as well as landscape type diversity. These results can be useful for initial planning process when considering major theme for landscape-based network organization. Also, this information will be helpful for planning stage through the specification of the potential role of each village in overall network.