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임규건(Gyoo Gun Lim),박인섭(In Sub Park),이대철(Dae Chul Lee) 한국IT서비스학회 2007 한국IT서비스학회지 Vol.6 No.2
Nowadays, IT becomes one of the core competencies in a business. So defining appropriate responsibilities & roles of IT human resources as well as setting the professionalism of them is getting more important. However, there are lots of problems between the supply and the demand of IT human resource. The efforts to arrange workers who have expert knowledge and skill in right place are needed to strengthen national competitiveness. Recently, several leading countries are setting IT skill standards to solve such problems. Therefore, this paper aims at analyzing IT skill standards of developed countries such as ITSS of Japan, SFIA of United Kingdom, and SSIT of USA. By doing comparative analysis of current status of Korea with them, we derive some meaningful insights to develop a national IT skill standard.
폴리프로필렌 중공사와 버퍼의 유로제어를 이용한 용존기체 분리특성
허필우(Pil Woo Heo),박인섭(In Sub Park) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.4
A fish can live under water by exchanging dissolved oxygens from water using gill. These ones can be separated from water by using membranes and controlling pressure. A human is able to breathe under water if the amount of separated ones is abundant. In this thesis, we investigate separation characteristics of dissolved gases including dissolved oxygens by using flow control of buffers and a hollow fibber membrane with polypropylene. Buffers are located between a hollow fiber membrane and a vacuum pump for pressure controlling. Valves are installed in flow channel. The amount of separated gases is measured with pressure by controlling valves for flow changing.
부식 방지를 위해 중공사막형 폴리프로필렌의 병렬연결에 의한 용존산소 분리특성
허필우(Pil Woo Heo),박인섭(In Sub Park) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
Dissolved oxygen in water is one of the important causes of corrosion of a device during productive process. The hollow fiber membrane made from polypropylene which has large surface area for volume is used to reduce the amount of dissolved oxygen. To increase the amounts of dissolved oxygen separated from water, two polypropylenes are connected in parallel. In this thesis, we investigated separation characteristics of dissolved oxygen with pressure using DO meter placed at exit position of membranes. If dissolved oxygens are separated and stored into a storage tank underwater, they can be used for breathing of a human. The amounts of oxygen separated from water needs to be increased through the efficient devices.
폴리프로필렌 중공사막을 이용한 분리된 용존기체의 포집 및 산소량 측정실험
허필우(Pil Woo Heo),박인섭(In Sub Park) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
The amount of separation of dissolved gas including oxygen underwater increases as pressure decreases, given by Henry's law. When a vacuum pump is used, only dissolved gas should be collected in the sampling bag to exclude the influence of external air when attempting to investigate the characteristics of dissolved gas accurately. In this thesis, we measure the amount of oxygen contained in the collected dissolved gas using a chemical sensor. We hope that the results will be applied to artificial gill technology.
주냉각재 펌프의 성능시험 및 유량계 설치위치에 따른 영향 고찰
박상진(Sang-Jin Park),박인섭(In Sub Park),오형우(Hyung Woo Oh) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Main coolant pump (MCP) of SMART Pilot is a canned-motor-type axial pump to circulate the primary coolant between nuclear fuel and steam generator in the primary system. The reactor is designed to operate under condition of 310℃ and 14.7 ㎫. Thus the MCP has to be tested under same operating condition as reactor design condition to verify its performance and safety. In this work, the performance test of a prototype MCP was carried out under the same operating condition and hydro dynamic performance curves were obtained as a result. At the same time, installation effect of an M-Pitot type flowmeter was also investigated by CFD and experiment. Two flowmeters were installed at different locations and the measured values were compared to each other. The averaged deviation of the flowrate at the design point is about 5%.