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LRFD 설계법에 의한 강박스거더 합성형교 설계 프로그램
김천용,권태형,이창열,신동구 明知大學校 産業技術硏究所 2006 産業技術硏究所論文集 Vol.25 No.-
A C++ based computer program for the design of composite steel-concrete box girder by the LRFD method is developed. The program consists of a main program, a header program, and 16 function programs. The load analysis for live and dead loads is performed by using the influence line based on the 3-moment method. For the design of box girder, strength limit states, fatigue limit state, and service limit state are considered. In addition, the constructibility of the girder is also checked. The validity of the program is demonstrated by comparing the design result for 3-span continuous box girder by the present program with the one by hand-calculation.
김천용,이희경 현대영어교육학회 2015 현대영어교육 Vol.16 No.1
Motivation is a learner construct that is positively correlated with foreign languagelearning (Dornyei, 2009). In this light, the present study investigates the nature ofKorean middle school students’ motivation to learn English by analyzing motivatedbehavior and two L2 motivation measurements (i.e., L2 Motivational Self System(L2MSS) and international posture (IP)) through a comprehensive questionnaire. Inaddition, the effects of gender, school type, and L2 achievement on the L2 motivationconstructs are also examined. The questionnaire was administered to 95 participantsand results were analyzed using Pearson correlation and an independent-samples t-test. Results show that motivated behavior correlated with L2MSS and partially with IP andthat L2MSS positively correlated with IP. In terms of gender and school type, nosignificant differences were found with motivated behavior and L2MSS but differenceswere partially found for IP. Additionally, the most significant differences were found inL2 achievement. This study suggests that Korean middle school learners of Englishwhose motivated behavior is influenced by L2MSS and IP which in turn showdifferences according to learner variables.
김천용 대한설비공학회 2000 설비저널 Vol.29 No.9
펌프 및 송풍기의 성능시험방법은 한국산업규격 등에 상세히 나타나 있으나 실제 현장에 설치된 기기는 규격에서 정한 시험조건과 차이가 많아 성능을 평가하는데 애로가 있다. 여기에서는 현장에서 수행 가능한 성능평가방법을 소개하고자 한다.