• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.1141-1144
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• 2017

사물인터넷의 발전과 보급에 따라 스마트 농장 산업이 활발히 이루어지고 있다. 하지만 스마트 농장에 사용하는 기존 토양 습도 센서를 스마트 농장이나 화분에 사용하는 것이 부적절 하다는 것을 실험을 통해 입증한다. 이를 해결하기 위해 반영구적 사용이 가능한 토양습도 센서를 개발한다.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.4 no.2
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• pp.12-17
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• 1995

The operation of heavy tracked vehicle has the problems in the steering that made by misoperations. The protection device is applied to the vehicles. But that device is applied to the vehicles. But that device has the engine stop and over load condition problems. the steering safety system is developed on the basis of clutch slip that proved the durability in the dynamo test and field test. The steering safety system caused the performance improvement of vehicles when steering.

• Proceedings of the Korea Concrete Institute Conference
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• 1995.10a
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• pp.89-92
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• 1995

For the development of lilght weight cement concrete with high durability, this study used perlite and paper sludge ash by the light weight material, and polypropylene fiber by the reinforcment, and poly-acrylic ester emulsion by the matrix improvement. According to the increasing mixture ratio of fiber and use of polymer, the light weight polypropylene fiber reinforced polymer cement ratio of fiber and use of polymer, the light weight polypropylene fiber reinforced polymer cement concrete were showed high resistance for frost damage.

• Journal of the Korean Chemical Society
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• v.56 no.2
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• pp.303-308
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• 2012

• Proceedings of the Korea Concrete Institute Conference
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• 2005.05b
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• pp.445-448
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• 2005

In this paper, waterproofing improvement of cement mortar is researched by comparing cement mixed with natural inorganic minerals with OPC under the same condition. The result shows that cement mixed with natural inorganic minerals has less permeability and absorption compared to OPC, which can be used as important data for improvements of durability and waterproofing of concrete structures.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2006.10a
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• pp.58-58
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• 2006

• Proceedings of the KSR Conference
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• 2011.05a
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• pp.574-579
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• 2011

In this study, we suggested a design modification method to reduce the vibration of an air conditioner for railway vehicles and increase the durability of its pipe lines. Through experimental vibrational mode analyses and structural modifications on the air conditioning system, vibration reduction scheme was suggested and evaluated its effectiveness by empirical modal analysis. The derived design idea was applied to a real air conditioning system and the expected improvement was obtained.

• Proceedings of the Korea Concrete Institute Conference
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• 2010.05a
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• pp.225-226
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• 2010

On this study, Aggregate union by various admixtures which is one of the methods to improve concrete performance has contributed to improvement of concrete strength and durability.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2018.06a
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• pp.3-3
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• 2018

산업 발전과 더불어 각종 장비들은 기존에 비해 현저히 가혹한 조건에서 운전되고 있다. 그러한 이유로 고유속, 고회전 등에 기인한 침식 및 캐비테이션 손상이 정적 환경과 비교할 수 없을 정도로 내구성이 저하되어 큰 손상 사고로 이어지는 사례가 다발하고 있다. 아울러 해양환경은 가혹한 부식 조건이므로 동적 손상과 복합적으로 작용하여 그 장비수명은 현저히 단축되고 있는 실정이다. 이를 극복하기 위한 다양한 표면처리 기술이 필요하다고 할 수 있다.

• Proceedings of the Korean Fiber Society Conference
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• 2003.04a
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• pp.432-433
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• 2003

미생물의 침해로부터 인체와 섬유제품을 보호하기 위하여 사용되는 항균 가공제로는 아민 또는 제4급 암모늄계, biguanide계, 알코올계, 페놀계, 알데하이드계 등의 유기계, 금속 이온 무기계, 산화물 및 광 촉매계, 유기 무기계, 천연 화합물 둥이 사용되고 있다[1-2]. 이러한 항미생물 가공제는 우수한 살균력, 섬유제품의 고유한 성질을 변화시키지 않는 특성, 탁월한 세탁 내구성, 인체에 대한 무독성 등의 조건을 가져야 한다[2-3]. (중략)