http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
- 검색키워드
- 저자 : 김태준 (검색결과 1,031 건)
- 무료
- 기관 내 무료
- 유료
-
김태준,오민아,이은경 한국교육사회학회 2016 한국교육사회학회 학술대회 발표 자료 Vol.2016 No.-
교육의 역할에 대한 국제사회의 주된 관심은 사회 진보를 위해 교육이 무엇을 가르쳐야 하는가로 발전하고 있다(OECD, 2015; OECD, 2010). 과거 교육의 경제적 효용성에 대한 논 의가 활발하였다면, 이제는 한 사회의 지속적인 발전에 기여하는 교육의 역할이 주목받고 있다(Kautz, Heckman, Diris, ter Weel, & Borghans, 2014; 김태준·홍영란·류성창·이광현·장 근영, 2012). 이러한 점에서는 비인지적 역량인 사회정서적 역량에 대한 관심이 높아지고 그 중요성에 대한 인식이 확대되고 있다(Schultz, Ainley, & Jrailon, 2011; 김태준·오민아·이 은경, 2015).
-
-
-
-
지하구조물 변위거동에 따른침목플로팅궤도의 고유진동수 분석
김태준,안대희,최정열 국제문화기술진흥원 2026 문화기술의 융합 Vol.12 No.1
This study analyzes the influence of displacement behavior (uplift and subsidence) of underground structures, induced by adjacent excavation and variations in ground conditions, on the natural frequencies of sleeper floating track systems (STEDEF) installed within those structures. Modal testing was conducted on an operating line to measure the Frequency Response Function (FRF) of a sound track section, and a track geometry measurement system was used to measure vertical track irregularities in sections where structural displacement had occurred. Based on these results, a three-dimensional finite element analysis (FEA) model was constructed using solid elements from the rail to the concrete track slab. The model was validated by comparing the calculated natural frequencies with field measurements, after which the displacement behavior of the underground structure was applied as a boundary condition. The natural frequency analysis showed that, for the first mode, the natural frequency under general conditions was 9.68Hz and slightly increased to 9.88Hz under uplift conditions, whereas it decreased significantly to 4.10Hz under subsidence conditions. This reduction indicates a loss of track support stiffness and an increase in the effective span length between rail supports due to the occurrence of hanging sleepers. Therefore, natural frequency evaluation based on modal testing can be effectively utilized as a diagnostic technique for identifying track subsidence and hanging sleeper occurrence caused by deformation of underground structures.
-
-
김태준,김성애,홍성은,정동민,최난영,김용균,박승아,김순영,박우정 한국심초음파학회 2014 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.22 No.2
A 51-year-old highly fit man presented for dyspnea with strenuous aerobic exercise. The patient was asymptomatic and all tests werenormal at rest. With increasing exercise intensity, he suddenly complained of dyspnea and showed a severe exercise-inducedhypoxemia with an excessive alveolar-arterial oxygen tension difference. In agitated saline contrast echocardiography at peak exercise,a large amount of left to right shunt was identified after > 5 cardiac cycles, which suggests the presence of exercise-inducedintrapulmonary arteriovenous shunt in this patient.
-
-
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
