• Proceedings of the Korea Water Resources Association Conference
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• 2005.05b
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• pp.1430-1434
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• 2005

금강 유역과 같이 복잡한 하천유역 시스템의 관리를 위해서는 시스템 요소들을 통합적으로 분석할 수 있는 효과적인 의사결정지원 도구가 필요하다. K-MODSIM 모형은 단기 물관리, 장기 운영계획, 가뭄 대비계획 및 물관련 분쟁 해결을 위해 보다 개선된 유역관리 전략을 수립하기 위한 컴퓨터 기반 도구로 개발되었으며, 본 연구에서는 K-MODSIM 모형에 저수지 운영률을 반영하여 유역의 용수배분을 평가하였다. 유역 저수지군 운영 환경 및 제약조건을 반영한 네트워크를 구성한 후, 두 단계의 모형 검정을 수행하였다. 먼저 물리적 검정을 통해서 전체 대상 수계의 상하류 물수지를 검토하고, 다음 단계인 운영 측면의 검정에서 물리적으로 나타나는 상황이 댐 운영이나 제약 조건 등에 부합하는지의 여부를 검토하였다. 대청댐과 용담댐의 통합 운영을 위한 최적 운영률의 개발은 동적계획법 소프트웨어인 CSUDP를 이용하여 수행하였으며, 여기서 사유한 접근법은 음해 추계학적 동적계획법이다. 이 접근방법은 유입량 시계열을 추계학적으로 모의발생시키고, CSUDP 모형은 모의발생시킨 유입량 시계열에 대한 최적운영률을 찾기 위해 사용하며, CSUDP의 최적화 결과에 대한 통계적인 분석을 통해 월단위 운영률을 도출하였다. K-MODSIM 모형에 저수지 운영률을 반영하여 유역의 용수배분을 평가하였다. 유역 저수지군 운영 환경 및 제약조건을 반영한 네트워크를 구성하고, 대청댐과 용담댐의 통합 운영을 위한 최적연계 운영를을 개발하여 다음과 같은 운영 시나리오들을 개발하고 평가하였다. $\cdot$ 금강수계에 대한 용당댐의 영향 평가 $\cdot$ 댐 연계운영시 수요량 변화에 따른 영향 평가 $\cdot$ 하도추적을 고려한 일별모형의 검증 개발된 운영률과 하도추적방법을 K-MODSIM 모형에서 검증하기 위해서 vb.net 스크립트 파일을 개발하여 적용하였다.L이하로 이를 유등천 상류부에 공급할 경우 유등천의 수질은 BOD 6.7mg/L, TN 9.80mg/L, TP 0.90mg/L를 나타낼 것으로 예측된다. 고도처리시설의 도입 후 금강 합류점에서 갑천의 예측 BOD는 7.4mg/L로 현재 9.0mg/L에 비하여 개선되지만 이는 금강수계 오염총량 관리계획의 시$\cdot$도 경계지점 목표수질인 5.9mg/L를 만족시키지 못하므로, 이를 만족시키기 위해서는 방류수 BOD 7.2mg/L이하로 처리해야 할 것으로 판단된다.which support only concepts or image features.방하는 것이 선계기준에 적합한 것으로 나타났다. 밸브 개폐에 따른 수압 변화를 모의한 결과 밸브 개폐도를 적절히 유지하여 필요수량의 확보 및 누수방지대책에 활용할 수 있을 것으로 판단된다.8R(mm)(r^2=0.84)$로 지수적으로 증가하는 경향을 나타내었다. 유거수량은 토성별로 양토를 1.0으로 기준할 때 사양토가 0.86으로 가장 작았고, 식양토 1.09, 식토 1.15로 평가되어 침투수에 비해 토성별 차이가 크게 나타났다. 이는 토성이 세립질일 수록 유거수의 저항이 작기 때문으로 생각된다. 경사에 따라서는 경사도가 증가할수록 증가하였으며 $10\% 경사일 때를 기준으로 $Ro(mm)=Ro_{10}{\times}0.797{\times}e^{-0.021s(\%)}$로 나타났다.천성 승모판 폐쇄 부전등을 초래하는 심각한 선천성 심질환이다. 그러나 진단 즉시 직접 좌관상동맥-대동맥 이식술로 수술적 교정을 해줌으로써 좋은 성적을 기대할 수 있음을 보여주었다.특히 교사들이 중요하게 인식하는 해방적 행동에 대한 목표를 강조하여 적용할 필요가 있음을 시사하고 있다.교하여 유의한 차이가 관찰되지 않았다. 또한 HSP 환자군에서도 $IL1RN^{*}2$ allele 빈도와

• The Journal of the Korea Contents Association
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• v.13 no.5
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• pp.517-526
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• 2013

Lifelong education promotion business to be the first to promote lifelong education promotion accountable to the governor of the city, the Lifelong Education Act Amendment (2007.12) emphasis on the research area 6 Lifelong Education and Lifelong Education Institute is established if analyzes what Gyeongsangnam-do lifetime policy implications for the promotion of education and implications are derived(through AHP). The results were as follows: occupational skill enhancement education (0.335) as the priority section. The development of life education policy (0.238) is the primary work process that must be initiated for the Gyeongnam life education promotion policy appropriate for the region's situation. This was followed by the development and distribution of life education program (0.148), construction of a connective system between life education organizations within the province (0.139) Raised the need to promote lifelong Education strategies, five core strategic industry linkages through regional industrial policy to keep pace with the flow of business for the Advancement of Education for the development and activation of Gyeongsangnam-do in a lifetime.

• Journal of Digital Convergence
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• v.13 no.8
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• pp.253-260
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• 2015

Because mass of activity records of individuals and organizations are accumulated in the digital space and amount of information is also increasing exponentially, the most urgent requirements of users is the tool for 'efficient' acquisition of 'useful' information. This paper try digital convergence to combine a domain specific technology with real time issue detection and grouping based on Web media. To derive core functionalities, we collect and analyze user requirements of national defense issue detection services. By utilizing linguistic resources specialized on national defence area and discovering features for measuring issue importance, we try to seek differentiation domain specific issue detection method. Finally we compare our detection results based on the development outputs of prototype.

• Korean Journal of Construction Engineering and Management
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• v.4 no.4 s.16
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• pp.212-219
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• 2003

In construction project planning and control, a cost model performs a critical role such as cost determination on a contract stage and cost tracing. The model can maximize owner's profit and value within the project budget and optimize cost management works on overall construction implementation stages. A BoQ(Bill of Quantities) generally adopted in a unit price contract has been applied as an important tool for cost control and forecast. However a previous cost model based on the BoQ has shown limitations in that it requires too detailed information and heavy manpower on cost management and difficulty in keeping relationship with construction planning, scheduling and progress management. The each cost items and unit prices which constitute of construction works are individually very important management factors but the relative weight for each items and prices have a difference on the contents and conditions of each conditions of each construction works. In consideration of this structural mechanism of cost determination, this research is aimed at examining the critical factors affecting the construction cost determination and propose and verify a new cost forecasting model which is more simple and efficient and also keeps the accuracy of cost management.

• Journal of the Korea Convergence Society
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• v.8 no.6
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• pp.109-119
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• 2017

The purpose of this study was to examine the factors influencing on the oral management ability of Vietnam marriage migrant women. The subjects of the study were extracted at randomly selected with the cooperation of the Vietnamese people 's association in D metropolitan city and the public health center in C city. The data were gathered using structured questionnaires translated into Vietnamese and oral examination, collected 85. The data was collected from June, 2016 to February, 2017. Vietnam marriage migrant women's oral management ability were found to have statistically significant difference according to staying in korea, tooth brushing frequency and experiences of oral health education. Also, as a result of path analysis, self-esteem was affected on oral management ability.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.1
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• pp.622-628
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• 2016

The aim of this study was to clarify how the role stress of administrative workers in medical institutions affects burnout, job satisfaction, and organizational commitment. The study conducted surveys on administrative workers at ten general hospitals with more than 200 beds for one month between July 13 and August 18, 2015. The surveys then underwent factor analysis, average variation extraction, a suitability index of the research model, and a path-coefficient estimation analysis of the research model using AMOS 18.0. The main results revealed a positive (+) effect according to the role conflict and role excess on burnout, and a negative (-) effect of burnout on job satisfaction, while they displayed no significant relationship with organizational commitment. These results suggest that clear guidelines and unity in instructions are needed to reduce the role of stress in cooperative tasks between departments and that optimizing the roles of organization members by accurately measuring and weighing tasks can increase the attachment to the organization and ultimately improve the individual job performance.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.379-379
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• 2019

환경부 홍수통제소에서는 효율적인 수재해 관리 및 안정적 용수공급을 위해 댐 보 연계운영협의회를 운영 중에 있으며, 이를 위해 다목적댐, 용수댐, 농업용저수지 및 다기능보 등 다양한 시설물 운영현황을 관리하고 있다. 그 중, 강수량은 각 시설물들의 운영에 근간이 되고 수재해에 직접적인 영향을 미침에 따라 가장 우선시 관리되는 항목이다. 그러나 시설물별 강수량 활용 기준이 상이하여 가뭄 상황 시 많은 혼란이 야기되고 있다. 예를 들어 섬진강유역에 가뭄이 발생하였고 그 원인으로 A댐 운영자가 해당일로부터 과거 30일 평년대비 강수량, B저수지 운영자가 당년 1월부터 현재까지 누적강수량의 평년대비 강수량을 제시하는데 가용자료 기간이 달라 가뭄에 기여한 강수상황을 구체적으로 인지하기가 어렵다. 한편, 기상청에서는 수문기상가뭄정보시스템 개발을 통해 우리나라 전역에 기상학적 가뭄정보를 제공하고 있다. 다만 다양한 가용자료 기간 구분에 따라 많은 지수들이 제공되고 있어(예: SPI3, 6, 9 등) 가뭄판단 및 예측에 있어 많은 혼돈이 야기되고 있다. 결국, 수자원관리자는 다양한 기상학적 가뭄정보들 중에서 관할 유역 및 시설물에 적합한 자료를 활용할 수 있는 기술개발이 필요하다. 본 연구에서는 댐과 농업용저수지 가뭄판단을 위한 강수량 활용 적정 지속기간을 도출하고자 한다. 이를 위해 각 시설물 상류에 위치한 강수량자료를 수집하고, 유역평균강수량을 계산하였다. 강수량을 30일 단위로 720일까지 매일 누적기간 강수량자료를 예년대비 값으로 변환하였고, 댐과 농업용저수지는 일 단위 예년대비 저수량 값을 활용하였다. 적정 지속기간 분석을 위해 상관성 분석 및 ROC 분석을 수행하였으며, 그 결과 여름철에는 지속기간 1~3개월 강수량, 나머지 기간에서는 지속기간 9개월 강수량 활용이 적절한 것으로 확인되었다. 본 연구결과는 시설물 가뭄관리(운영 및 예측)에 유용하게 활용될 것으로 기대된다.

• Geophysics and Geophysical Exploration
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• v.25 no.1
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• pp.1-13
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• 2022

For surveying shallow gas reservoirs in the Pohang basin, we proposed a seismic exploration method applicable to the transition zone in which land and marine areas are connected. We designed the seismic acquisition geometry considering both environments. We installed land nodal receivers on the ground and employed vibroseis and airgun sources in both land and marine areas. For seismic exploration in the transition zone, specific acquisition and processing techniques are required to ensure precise matching of reflectors at the boundary between the onshore and offshore regions. To enhance the continuity of reflection events on the seismic section, we performed amplitude and phase corrections with respect to the source types and applied a static correction. Following these processing steps, we obtained a seismic section showing connected reflectors around the boundary in the transition zone. We anticipate that our proposed seismic exploration method can also be used for fault detection in the transition zone.

• Journal of Korean Society of Environmental Engineers
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• v.39 no.7
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• pp.403-411
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• 2017

In this study, the occurrence and temporal variation of eight pharmaceuticals comprising antibiotics (clarithromycin, sulfathiazole, sulfamethazine, sulfamethoxazole, trimethoprim), scabicide (carbamazepine) and nonsteroidal anti-inflammatory drugs (acetylsalicylic acid, naproxen) in main stream and its tributary of the Nakdong River basin, were investigated. Concentrations of the target compounds ranged from $1.076{\mu}g/L$. The highest average concentration was observed for clarithromycin ($0.0316{\mu}g/L$), followed by sulfamethazine ($0.0170{\mu}g/L$), sulfamethoxazole ($0.0161{\mu}g/L$), naproxen ($0.0129{\mu}g/L$), carbamazepine ($0.0093{\mu}g/L$), acetylsalicylic acid ($0.0047{\mu}g/L$), sulfathiazole ($0.0024{\mu}g/L$) and trimethoprim ($0.0022{\mu}g/L$). The decreasing pattern of pharmaceutical concentrations was observed along with Nakdong River and the higher concentrations in downstream were observed than those in upstream. There was no temporal variation of the target compounds although the highest level was found in February. The calculated hazard quotients (HQs) for eight pharmaceuticals were below 1, indicating no environmental hazard in Nakdong River. However, further monitoring is still needed due to the other pharmaceuticals widely used in Korea.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.36 no.5
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• pp.891-901
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• 2016

By comparing test blasting data experimented in three layered-structure polymorphic grounds to a geological profile, influence of blast vibration with respect to uncontrollable ground characteristics was analyzed. Inefficient blast have been performed without sufficient verifications or confirmations because insufficiencies with regard to experiments and data of blasting engineering on the layered structures to be irregularly repeated clinker layer consisted of volcanic clastic zones. It is difficult to quantify N values of clinkers within test blasting region because they have diverse ranges, or coverages. An absolute value of attenuation coefficient N in a field, estimated by blasting vibration predictive equation (SRSD), are lesser than criteria of a design instruction, meaning that vibrations caused by blast can spread far away, and the vibrational characteristics of blasting test No.1, indicating relatively small values, inferred by the geological profile, pressures of gas by the explosion may be lost into a widely distributed clinker layers by penetrating holes resulted from blast into vicinity of clinker layers located in bottom of soft rock layers at the moment of blast. As a result, amounts of spalling rocks are decreased by almost half. Also, ranges of primary frequencies in the fields are identified as similar to those of natural frequency of typical structures.