지상라이다를 이용한 미기록 외래종 갯쥐꼬리풀(Spartina Alterniflora)의 분포특성과 관리방안 연구 -다도해 해상국립공원 진도 남동리 해안을 사례로-

박정원 ( Jung Won Park ),김하송 ( Ha Song Kim ),장성건 ( Seong Geon Jang ),천숙진 ( Sook Jin Chun ),육관수 ( Kwan Soo Yuk ) 한국도서학회 2015 韓國島嶼硏究 Vol.27 No.3

갯쥐꼬리풀(Spartina alterniflora)은 북미 대서양 연안 뉴펀들랜드, 캐나다 남쪽에서 아르헨티나 북부의 갯벌이 원산이며, 생장이 강한 특성으로 세계의 기수지역과 해안에서 생태공학적 용도로 도입된 바 있다. 그러나 매우 빠르게 갯벌을 피복하여 자생종의 생장을 방해하고, 염습지 종다양성을 감소 시켰고, 결과적으로 과다생육으로 갯벌 무척추동물의 서식지를 잠식해 사라지게 하여 무척추동물을 먹이로 하는 조류 또한 생태계 내에서 감소키는 등 많은 환경문제를 야기 시켰다. 우리나라에서는 2008년 전후에 다도해해상국립공원에 유입된 것으로 판단된다. 현재 다도해해상국립공원 남동리 해안에서 분포하고 있는 갯쥐꼬리풀(Spartina alterniflora)군락은 습지내 총 6개의 염생식물 군락면적(8,487.7㎡) 중 75.34%의 비율(6,394.86㎡)로 분포하고 있다. 또한 2008년에 11.54㎡ 이던 분포 면적이 2015년 현재 약 550배가 늘어난 6,394.22㎡로 조사되었고 생육지 고도 범위인 0.69m~1.1m를 요인 값으로 두고 GIS 분석한 하였다. 그 결과 앞으로 확산 될 예상 면적은 12,584㎡이며 현재보다 약 6,189.14㎡가 늘어날 것으로 예측되며 우리나라에서도 역시 확산이 빠르고 넓게 늘어날 것으로 판단된다. 향후 계속 분포역이 확대 될 것으로 예상하고 관리방안을 위하여 시범 연구를 실시하였다. 갯쥐꼬리풀군락 중 일부를 첫 번째는 뿌리째 뽑아내기와 두 번째 지상부 제거 후 포장덮기 방법 등 국외사례의 문헌을 바탕으로 방재를 실시하였으나 전체 면적을 방재하기에는 많은 인력과 시간 그리고 예산이 소요되므로 다각적인 방안을 강구하여야 한다. Spartina alterniflora is native to the Atlantic coast from Newfoundland, the south of Canada and northern Argentina. There it forms a dominant part of brackish coastal saltmarshes. Due to its strong growth, the Spartina alternifolra was introduced to the rider area and coast as a use for ecological engineering. The Spartina alterniflora community can crowd out native species, reduce the biodiversity of saltmarsh and alter the environment. As a result, the invertebrates living in mud flats disappeared due to the encroaching of Spartina alterniflora, and the birds which eat off invertebrates went along as well. The Spartina alterniflora was first introduced in South Korea in 2008 and is known to have flowed in the Dadohaehaesang National Park. Compared to 2008, in 2015 the distribution area of the Spartina alterniflora has increased 550 times. (11.54㎡ in 2008 to 6,394.22㎡ in 2015). The large increase of Spartina alterniflora calls for urgent management and additionary study on the subject. Thus, this study analyzed the geo-spatial information on the Spartina alterniflora such as its distribution area, the height of habitats and expected expansion area, and can act as the preliminary data for management.

Cunninghamella elegans에 의한 폐 mucormycosis

박경실,서광수,조무자,김춘식,심상인,김선무 대한임상병리사협회 2001 대한임상병리사회지 Vol.21 No.1

펌프 吸水槽內의 渦流現象에 관한 硏究

朴春根,徐利洙,朴仁東 동아대학교 공과대학 부설 한국자원개발연구소 1986 硏究報告 Vol.10 No.1

It is important to design a pump suction sump with proper dimensions and configuration which will greatly influence the pump performance. This study was carried out to examine pump performance caused by vortex phenomenon and to research relation between critical submergence and width of suction sump, bell to bottom clearance, bell to rear wall clearance and suction bell outer diameter. The results obtained by this experiment are as follows. Sc is decreased with the increase of suction sump width x, and though the variation of Sc with variation Y is not clearly observed, in general, Sc tends to decrease with the increase of Y. Sc is increased with increase of Z and velocity, but Sc is decreased with the increase of D.

유전자 알고리즘과 신경망이론의 결합에 의한 영산강의 DO, BOD 농도예측

박성천,하수정 東新大學校 工業技術硏究所 2002 工業技術硏究 Vol.8 No.-

As the industrialization and the urbanization has increased, the water has been increasingly used, discharged industrial wastewater and filthy water of our daily life have been seriously polluted the water quality, the increased load quantity of polluting materials has caused the eutrophication of rivers, and so the natural purification ability of a river system has reached its limit. Accordingly, measures to prevent the water pollution resulting from sewage and wastewater and to effectively control the water quality are required. In this study, in order to develop a model for presupposing the water quality of a river, I intended to presuppose the density of DO, BOD, T-N, and T-P of Youngsan river, by using a genetic algorithm which is one of conceptual models and a nerve-network theory. As a result, I could find out that the coefficient of correlation for the items of water quality which I intended to presuppose was 0.87 and more, which is highly reliable. It means that the model which was developed in this study and combined the genetic algorithm and the nerve network was excellent for being applied to presupposing the water quality of a nonlinear river as it could find out the fittest parameter needed for the presupposition. Accordingly, I think that, if the model developed in this study is applied to a river and the construction of its daily or hourly data is preceded, a better model will be developed and the water quality of a river will be controlled more actively.

강진만에서 미생물의 년 변화

박종천,오재영,정용욱,주현수,이원교,유춘만,이우범 國立 麗水大學校 환경문제硏究所 2001 環境硏究論文集 Vol.4 No.-

The biological surveys were performed at seven sites in the Gangjin bay from February, 1998 to November, 2001. In order to analysis of environmental variation, numbers of heterotrophic bacteria, general fungus and fecal coliforms were enumerated in each sample. The result showed that variation range of heterotrophic bacteria, general fungus, and fecal coliforms were 2.9 x 10^(3)~9.6 x 10^(3) CFU/ml, 17.2~80.1 CFU/ml, and 6.3~682.5 CFU/100ml for four tears(1988~2001), respectively. Density of heterotrophic bacteria and general fungus were gradually decreased for four tours, while fecal coliforms were suddenly increased. Specially, numbers of fecal colifoms were increased the more 100 times in 2001 than that 1998. We think that it was probably caused a little rainfall in February, 2001. There result suggests that ecosystem of Gangjin bay were mainly regulated by 2~3 factors, which were inflow of fresh water, salinity and variation of water temperature.

경부 관통상으로 인한 사지 마비 1례

박 진,이경운,김춘호,김성중,조남수,안태훈 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.3

A case of quadriplegia resulted from cervical penetrating wound was admitted to chosun university hospital intensive care unit, and undergone steroid therapy and antibiotics therapy. On the 6th hospital day, the septic complication was developed and it proved to be bacterial meningitis by CSF examination. Broad spectrum antibiotics was administered immediately after and the diagnosis and the patient was monitored carefully. The bacterial meningitis was improved and no other serious complication was developed. The patient was discharged with permanent neurologic deficit, quadriplegia.

시뮬레이션을 이용한 광주광역시 지하철 운영계획에 관한 연구

전태웅,박수희,이항진 조선대학교 환경공해연구소 1999 環境公害硏究 Vol.15 No.2

This study is concerned with the operation planning in Kwang-ju subway. The operation planning in subway that one is electronic car operating interval time, one other is the number of trailer car. The evaluation criteha of alternatives is average queue time of passenger and the degree of congestion in the trailer car. The alternatives of operating planning and the experiment of alternatives is presented in this paper by simulation with ARENA. The results of experiments, electronic car operating interval time is 3.5 minutes and the number of trailer car is four in 2004 year.

면역 부전 환자에서 병발한 급성 황색 포도상 구균에 의한 세균성 식도염 1예

박환양,김춘관,박영배,박재완,김성훈,강정원,문경협,양수현,변종훈 대한감염학회 2001 감염 Vol.33 No.5

Bacterial esophagitis is an uncommon disease and has not been well characterized. Bacterial infection of the esophagus is usually presented as a superimposed infection upon a preexisting viral or fungal esophagitis and most patients are immunocompromised hosts. A 67-year-old man was admitted for retrosternal pain and hematemesis, who had a past history of long-standing diabetes mellitus and end stage renal disease, also had a history of steroid medication. Extensive esophageal ulcerations of the mucosa were visualized by endoscopy. Staphylococcus aureus grew in blood culture. After the 2 weeks of antibiotics treatment, he was successfully recovered without any sequelae. Due to its rarity, this case is herein reported with a review of the corresponding literature. (Korean J Infect Dis 33:360∼363, 2001)

非定常流의 亂流領域에서 오리피스 形狀에 따른 損失 및 流量에 관한 實驗的 硏究

朴春根,徐利洙 東亞大學校 大學院 1984 大學院論文集 Vol.8 No.2

To loss and discharge coefficients of several types of orifices are studied experimentally for Reynolds numbers for 10⁴to 10?, and square-edged and sharp-edged orifices are varied thickness and angle of inclinations. experimental results, for thickness front direction of flow scarcely ever be varied loss and discharge coefficients, but back direction of flow are changed loss and discharge coefficients when angle of inclination are varied, for back direction of flow if angle of inclination be increased, loss coefficients be decreased and discharge coefficients be increased.

래크 생산시스템의 생산능력 결정에 관한 연구

전태웅,박수희,이항진 조선대학교 경영경제연구소 1999 經營經濟硏究 = Management and economics research Vol.22 No.2

This study is concern to determine production capacity for rack production system using simulation. In rack production system, generally, the production capacity is determine by the number of operatior and the time of operator, that is decision parameters. The fourth-four alternatives that is eleven alternatives to the number of operator and four alternatives to the quaranty of production is simulated in this study. The overhead cost is decision criteria in the selection to alternatives.