• 한국물환경학회지
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• 제28권2호
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• pp.320-331
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• 2012

A combination system of catch canal and constructed wetland was designed and suggested to improve water quality in gagricultural region of lower Dong-jin river basin. In order to evaluate an water quality improvement efficiency of the designed combination system, the NPS-WET model was applied in this study. Simulation result of the NPS-WET shown that the nutrient load removal rate of constructed wetland was BOD, T-N, T-P and SS was 30.7~39.0%, 46~60%, 40.7~57.0% and 68.2~74.7%, respectively. Nutrients reduction of constructed wetland was higher in growing season than winter season because vital activity of microorganism, macrophyte and algae was augmented with high air and water temperature. Effluents from constructed wetland can affect water-quality of catch canal drains, especially, water-quality on junction point to Dong-jin river. Water-quality improvement in low-flowed catch canal (Un-san) was more significant than in high-flowed catch canal (Won-pyeong). In conclusion, a feasible design of constructed wetland is necessary to treat large quantity of receiving water. The NPS-WET is useful tool for assessing water-quality improvement efficiency using constructed wetland.

• 대한지리학회:학술대회논문집
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• 대한지리학회 2004년도 추계학술대회
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• pp.44-44
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• 2004

• 한국지형학회지
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• 제18권1호
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• pp.1-13
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• 2011

김해시 대동면 일대에는 자연배수를 위한 승수로, 안정적인 용수 확보를 위한 터널 굴착, 야주하천의 인위적 직강화, 일반적인 형태의 양·배수장 등, 범람원에서 볼 수 있는 각종 양·배수시설이 다양하게 나타나고, 이들 시설의 개발, 유지, 운영에는 범람원 지역의 지형 조건이 크게 작용하고 있음을 확인했다. 특히 운하천 유역의 경우, 운하천 취수문만 열면 자연 경사에 의해 얼마든지 낙동강 본류의 물을 양수할 수 있고, 연구지역에서 가장 큰 양수장인 월당양수장에서 낙동강 본류의 물을 직접 양수할 수 있다. 감내천은 한때 운하천(이전 하동천)의 상류였으며, 현재는 덕산승수로를 통해 낙동강으로 배수된다. 따라서 이러한 배수체계는 운하천 저지대의 홍수 피해 및 배수 부담을 덜어주고 있다.

• Annals of Clinical Neurophysiology
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• 제8권1호
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• pp.1-5
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• 2006

The head thrust maneuver is a simple bedside test of the higher frequency vestibulo-ocular reflex, which is based on Ewald's second law. It is performed by grasping the patient's head and applying a brief, small-amplitude, high-acceleration head turn, first to one side and then to the other. The patient fixates on the examiner's nose and the examiner watches for corrective rapid eye movements (saccades), which are a sign of decreased vestibular response. The "catch-up" saccades after a head thrust in one direction indicate a peripheral vestibular lesion on that side (in the labyrinth or the $8^{th}$ nerve including the root's entry zone in the brain stem). An individual pair of vertical semicircular canals can also be stimulated by turning the head to the right or left by $45^{\circ}$ and then by rotating the head in the pitch plane relative to the body. Recent studies have suggested that assessment of individual semicircular canal function by head thrust test may provide useful information for anatomical and functional details of a variety of peripheral vestibulopathies and for predicting the prognosis of vestibular neuritis. In central vestibulopathy, the head thrust test may also be valuable sign to determine dysfunction of the central pathways from individual semicircular canals and its role for the development of diverse central nystagmus.

• 한국관개배수논문집
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• 제17권2호
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• pp.105-114
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• 2010

Tidal land reclamation provided water resources and land for agriculture and contributed stable crop production. However, climate change by global warming disrupts the hydrologic circulatory system of the earth resulting in sea level rise and more frequent flood for reclaimed arable land. Recently, Suyu reclaimed paddy field in Jindo-gun experienced prolonged inundation after heavy rainfall and there is a growing risk of flood damage. Onsite survey and flood analysis using GATE_Pro model of Korea Rural Corporation were conducted to investigate causes of flooding. To perform the analysis, input data such as inflow hydrograph, the lowest elevation of paddy field, neap tide level, management level of Gunnae estuary lake at the time of the flood were collected. Flood analysis confirmed that current drainage facilities are not enough to prevent 20year return period flood. The result of analysis showed flooding more than 24hours. Therefore, flood mitigation alternatives such as sluice gate expansion, installation drainage pumping station, refill paddy land, and catch canal were studied. Replacing drainage culvert of Suyu dike to sluice gate and installing drainage pumping station at the Gunne lake were identified as an effective flood control measures. Furthermore, TM/TC (SCADA) system and expert for gate management are required for the better management of drainage for estuary dam and flood mitigation.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2009년도 추계학술대회
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• pp.141-144
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• 2009

우리나라는 국토 면적에 비해 해안선이 길어 해양공간 및 연안지역의 개발 잠재력이 높으며 플로팅 건축물의 활용 가능성이 매우 크다. 또한 세계 최고 수준의 조선 및 건축기술을 가지고 있어 플로팅 건축물 관련 설계 및 시공기술을 체계적으로 확립한다면 국내 외시장에서 충분히 경쟁력을 갖출 수 있는 여건이 마련되어 있다. 본 연구는 플로팅 건축물의 본격적인 기술개발에 앞서 국내외 시장현황을 살펴보고 관련 산업동향을 파악하여 플로팅 건축물의 기술개발 및 산업화률 위한 기초자료를 확보하는데 그 목적이 있다.