• 수도
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• s.46
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• pp.65-70
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• 1988

1988. 9. 12-16 브라질 리오 데자네이로에서 열린 제17차 국제수도회의에서 발표된 논문중 내용이 우수한 논문을 번역 소개합니다. 업무에 많은 참고있기를 바랍니다.

• The Inventors News
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• no.21
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• pp.5-6
• /
• 2004

특허청, 위조상품 근절 위한 강력 단속에 나선다 - 한국, 국제특허출원 세계 제7위로 상승 - 발명의 산업상 이용가능성 - 다양한 모습의 캐릭터 상표가 뜨고 있다 - 특허청에 이공계 우수인력 몰려 - 영국, 항공우주연구원 최형돈 박사 `올해의 과학자`로 선정

• Proceedings of the Korean Institute of Communication Sciences Conference
• /
• 2006.07a
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• pp.642-642
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• 2006

• Proceedings of the Korean Ceranic Society Conference
• /
• 2003.04a
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• pp.144.1-144
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• 2003

• Journal of the KSME
• /
• v.51 no.12
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• pp.46-50
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• 2011

이 글에서는 제4세대 원자로 노형으로 수소생산 및 열공급을 목적으로 하는 초고온가스로의 특정과 우수한 안전성, 그리고 다양한 응용분야에 대해 소개하고자 한다.

• KOREAN POULTRY JOURNAL
• /
• v.12 no.2 s.124
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• pp.88-89
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• 1980

양계인들이 가장 흔하게 먹을 수 있는 달걀이 풍부한 영양가를 지닌 우수한 식품임은 누구나 잘 알고 있는 사실이나 너무 쉽게 먹을 수 있어 자칫 식상하기 쉽다. 조금만 신경을 쓰면 달걀을 이용하여 멋스럽고 건강에 좋은 음료를 만들수있다. 저녁식사후에 또는 손님접대에 간편한 음료를 만들어 보자.

• Proceedings of the Korean Society of Grassland Science Conference
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• 2001.06a
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• pp.108.1-108
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• 2001

• Proceedings of the Korea Water Resources Association Conference
• /
• 2001.05a
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• pp.309-314
• /
• 2001

• Magazine of the Korean Society of Agricultural Engineers
• /
• v.61 no.2
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• pp.62-68
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• 2019

• Journal of Korean Society of Disaster and Security
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• v.12 no.4
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• pp.1-13
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• 2019

Recently, as the occurrence frequency of sudden floods due to climate change increased, it is necessary to install the facilities that can cope with the initial stormwater. Most researches have been conducted on the design of facilities applying the Low Impact Development (LID) and the reduction effect on rainfall runoff to examine with 1D or 2D numerical models. However, the studies on the examination about flow characteristics and stability of pipe network systems were relatively insufficient in the literature. In this study, the stability of the pipe network system in rainwater storage tank was examined by using 3D numerical model, FLOW-3D. The changes of velocity and dynamic pressure were examined according to the number of rainwater storage tank and compared with the design criteria to derive the optimal design plan for a rainwater storage tank. As a results of numerical simulation with the design values in the previous study, it was confirmed that the velocity became increased as the number of rainwater storage tank increased. And magnitude of the velocity in pipes was formed within the design criteria. However, the velocity in the additional rainwater storage pipe was about 3.44 m/s exceeding the allowable range of the design criteria, when three or more additional rainwater storage tanks were installed. In the case of turbulence intensity and bottom shear stress, the bottom shear stress was larger than the critical shear stress as the additional rainwater storage was increased. So, the deposition of sediment was unlikely to occur, but it should be considered that the floc was formed by the reduction of the turbulence intensity. In addition, the dynamic pressure was also satisfied with the design criteria when the results were compared with the allowable internal pressure of the pipes generally used in the design of rainwater storage tank. Based on these results, it was suitable to install up to two additional rainwater storage tanks because the drainage becomes well when increasing of the number of storage tank and the velocity in the pipe becomes faster to be vulnerable to damage the pipe. However, this study has a assumption about the specifications of the rainwater storage tanks and the inflow of stormwater and has a limitation such that deriving the suitable rainwater storage tank design by simply adding the storage tank. Therefore, the various storage tank types and stormwater inflow scenarios will be asked to derive more efficient design plans in the future.