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오태동(Tae Dong Oh),이준수(Jun-Soo Lee),오재인(Jay In Oh) 한국IT서비스학회 2010 한국IT서비스학회지 Vol.9 No.4
The purpose of this study is to investigate the relationship among users perception on the characteristics of U-Services, attitude factors as mediating variables, and behavioral intention toward U-Services as the dependent variable. Based on the literature review on the related theories, the research model which analyzes the behavioral intention toward U-Services was developed. The result from the analysis of the data collected validated the U-Services Acceptance Model (USAM) proposed in this study as a sound construct framework. Futhermore, significant insights on the USAM were provided for the stakeholders and future researchers in the field of U-Services Acceptance.
김성수(Sung-Su Kim),오태인(Tae-In Oh),최기영(Kee-Young Choi),박춘배(Choon-Bae Park),하철근(Cheol-Keun Ha) 한국항공우주학회 2007 韓國航空宇宙學會誌 Vol.35 No.6
무인기의 운용이 점차 보편화되면서 무인기의 기본 요구도에 많은 변화가 생기고 있다. 기존의 시스템은 기능 구현을 주목적으로 하였으나 현재의 무인기는 이를 넘어서 가용성에도 큰 무게를 둔다. 따라서 무인기 분야 선진 각국에서는 시스템의 신뢰도 분석 방법과 자료 수집에 많은 노력을 기울이고, 또 그 결과를 설계에 반영한다. 본 논문에서는 이러한 신뢰성 분석 기법을 소개하고 이를 기초로 현재 개발 중인 무인기 탑재시스템을 대상으로 신뢰성을 분석하여 그 결과를 제시함으로써 무인기 개발 및 운용 과정에서의 효율성 증대를 도모하였다. As usage of UAV becomes more common, a basic requirements on the system are changing. Existent system did function embodiment by major object, but current UAV puts bigger weight to availability. Therefore, all the advanced countries in UAV technologies put great efforts in reliability analysis techniques and source collection of system, and reflect the result in design. The authors are developing a flight control system for a UAV and using the reliability analysis techniques in the process. This paper introduces basic reliability analysis techniques and results of analysis for a small UAV flight control system that is developing present. The result plans efficiency enlargement UAV development and operation process.
고광호(Kwang-Ho Ko),인종수(Jong_Soo In),오태일(Tae_Il Oh) 한국산업융합학회 2004 한국산업융합학회 논문집 Vol.7 No.4
This paper is to develop the program for sizing of a counter-flow cooling tower. Air flow, air exit tmperature, fan power are calculated from design coditions of cooling tower by using this program. The basic equations and solutions of the heat transfer and pressure drop of cooling tower are descrived and the algorithm development for design of cooling tower is performed. The variation of fan power of cooling tower in acoording to variation of cell area and fill height is performed by using this program. This result shows that the optimal design for install and running cost of cooling tower can be performed by using this program.<br/> <br/>
CNC 머시닝 센터에서의 온머신 측정시 적용가능한 센서의 오차특성 분석
이상준 ( Sang-jun Lee ),인종수 ( Jong-soo In ),오태일 ( Tae-il Oh ) 한국고등직업교육학회 2004 한국고등직업교육학회논문집 Vol.5 No.2
On-Machine-Measurement(OMM) system is that the workpiece dimensions are measured using the machine scales and sensors instead of tool after cutting process on a CNC machine. The error states and correcting methods of the sensors have been studied to rise the OMM accuracy. The over-travel errors of the touch trigger probe are increased linearly in proportion to access speed. The method to compensate center alignment error between tool and scanning probe is developed using a position-known hole. The measurement error from a contact angle between scanning probe stylus and workpiece surface is analyzed geometrically. The method has been developed to compensate the alignment error of the laser displacement sensor using reference ball at a known position.