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대학생들의 여행 동기 유형별 관광제약의 차이 연구 -대전지역 대학을 중심으로-
이일행 ( Il Haeng Lee ) 관광경영학회 2013 관광경영연구 Vol.56 No.-
This study aimed to examine the difference of tourism constraints by tourism motivation type of university students and took practical analysis based on the hypothesis. As a result of analysis on tourism motivation, it was classified as interrelation pursuing type, knowledge pursuing type and entertainment pursuing type. When the cluster analysis was carried out by inputting the extracted factor, it was categorized into three clusters: interrelation pursuing group, knowledge pursuing group and entertainment pursuing group. As a result of factor analysis on tourism constraints, it was categorized as interpersonal constraint, facility constraint and structural constrains. Then, different verification on tourism constraints was carried out to students in 3 clusters. The analysis result has the following academic significances. As a result of cluster analysis to specify tourism motivation groups of university students, it showed statistically significance differences on the tourism constraints in three clusters, which were corresponding with the hypothesis suggested through the theoretical basis of the previous studies. And, the tourism constraints were different by tourism motivation of university students, which demonstrates what students considered according to their pursuing motivation. Accordingly, this study might be useful resources in setting marketing plans for university students and in setting target markets by types of motivation group. In addition, it is expected that this study can contribute to the economic activation of tourism industry by expanding tourism of students in Daejeon.
초고층 건물용 고강도 내충격 PVC 오 · 배수관 (DH Pipe System)의 성능 평가
이세윤(Se-Yoon Lee),김중구(Joong-Gu Kim),이일행(Il-Haeng Lee) 대한설비공학회 2010 대한설비공학회 학술발표대회논문집 Vol.2010 No.11
International trend of 50 stories or more tall buildings individual just by the concept have been growing, future-oriented land mark means also increasing emphasis on high-rise buildings in the city urban concept of modern urban facilities and institutions are highlighted large is a project. This cutting-edge engineering technology and its accompanying high-tech could pull factors such as design, construction, new materials, more cost-effective construction techniques is the time required. Currently the cast iron pipe in the basement of tall buildings has been used primarily domestic in the country comes from the construction site is being used around 1940 pipes are faced with the following issues. 1. Due to corrosion caused by the scale of the maintenance problems 2. Rust in pipes due to water pollution problems 3. Construction, and handling problems caused by heavy weights Therefore, the cause of these buildings is the quality degradation occurs. Therefore, the “quality, workability, economy” to replace the cast iron possessing the requirements for the development of products to solve the ‘DH pipe systems' was developed.
이창석(Chang Suck Lee),이일행(Il Haeng Lee),홍성완(Sung Wan Hong) 대한설비공학회 2017 대한설비공학회 학술발표대회논문집 Vol.2017 No.6
“장수명 급수관 및 이음관”의 “장기내수압 평가시험”은 ISO 1167-1에서 제시한 100년 기준압력(24.32MPa)에 대하여 24.76MPa로 내수압에 대한 100년 수명을 검증하였다. 또한, ASTM D1785 및 AWWA C900 기준에 따라 낙추충격실험을 진행하여 195ft/lbs(46kg)에서 “급격한 외부 충격에 대한 안전성”을 확인하였다. “파괴압력강도”는 ASTM D1785, AWWA C900의 기준에 따라 시험을 한 결과 1,065psi로 미국 기준인 710, 755psi에 비해 40% 이상 강한 압력에도 파괴되지 않는 것으로 확인하였다.