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.
RISS 인기검색어
- 검색키워드
- 저자 : 송창근 (검색결과 570 건)
- 무료
- 기관 내 무료
- 유료
-
-
송창근,서일원,김태원,안정규,Song, Chang Geun,Seo, Il Won,Kim, Tae Won,Ahn, Jungkyu 대한토목학회 2013 대한토목학회논문집 Vol.33 No.5
Most of the previous models for analysis of shallow water flow assumed the uniform velocity distributions over the flow depth so that they produced incorrect velocity prediction at meandering part due to the ignorance of secondary current. In this study, the vertical velocity profiles in longitudinal and transverse direction were decomposed as the mean and variation components, which resulted in additional dispersion stresses terms in momentum equations. The proposed model were applied at the channels with $30^{\circ}$, $90^{\circ}$, $270^{\circ}$ bends, and shallow water flow in curved channel was analyzed using dispersion stresses. The dispersion stresses acted as a sink or source in the momentum equations, which caused the transverse convection of momentum to shift from the inner bank to the outer bank.
-
-
-
송창근,윤지수,윤영빈,김영진,이민철 한국항공우주학회 2016 International Journal of Aeronautical and Space Sc Vol.17 No.4
This paper presents the characteristics of non-fundamental multi-mode combustion instability and the effects of highharmonic components on the Rayleigh criterion. Phenomenological observations of multi-harmonic-mode dynamic pressure waves regarding the intensity of harmonic components and the source of wave distortion have been explained by introducing examples of second- and third-order harmonics at various amplitudes. The amplitude and order of the harmonic components distorted the wave shapes, including the peak and the amplitude, of the dynamic pressure and heat release, and consequently the temporal Rayleigh index and its integrals. A cause-and-effect analysis was used to identify the root causes of the phase delay and the amplification of the Rayleigh index. From this analysis, the skewness of the dynamic pressure turned out to be a major source in determining whether multi-mode instability is driving or damping, as well as in optimizing the combustor design, such as the mixing length and the combustor length, to avoid unstable regions. The results can be used to minimize errors in predicting combustion instability in cases of high multi-mode combustion instability. In the future, the amount of research and the number of applications will increase because new fuels, such as fast-burning syngases, are prone to generating multi-mode instabilities.
-
발달장애인 진로지도를 위한 부모교육 프로그램 도출을 위한 연구
송창근 한국장애인재활협회 부설 재활연구소 2023 재활복지 Vol.27 No.3
이 연구의 목적은 발달장애 학생이 학교를 졸업한 이후 진로 및 직업지도의 사각지대에 놓여지는상황을 보완하기 위해 발달장애인 진로지도를 위한 부모교육 프로그램을 도출을 위한 뱡향성을 제시하는 데 있다. 이 같은 연구 목적을 달성하기 위해서 발달장애인 진로 및 직업지도와 관련 있는 전문가 및 발달장애인 자녀를 둔 부모를 포함한 9인을 대상으로 포커스그룹인터뷰(FGI)를 실시하였다. 연구결과를 살펴보면 먼저 발달장애인 진로지도 실태와 관련하여 인터뷰에 참여한 전문가 및 발달장애인 부모 모두 발달장애인에 대한 진로지도 프로그램이 부족하다고 인식하였고, 필요성에 대해서는 긍정적으로 응답하였다. 다음으로 발달장애인 진로지도를 위한 부모교육 프로그램 도출을 위해실시한 인터뷰 결과 발달장애에 대한 이해 프로그램, 발달장애 자녀를 위한 상담기초에 대한 프로그램, 진로와 직업의 이해 및 진로선택을 위한 동기부여 상담 프로그램, 발달장애인 직업배치 및 적응지원 프로그램이 도출되었다. The purpose of this study is to derive a parent education program for career guidance for students with developmental disabilities to compensate for the blind spot of career and vocational guidance after graduating from school. To achieve the purpose of this study, a focus group interview(FGI) was conducted with 9 people, including experts in career and career guidance for people with developmental disabilities and parents with children with developmental disabilities. According to the findings of the study, both experts who participated in interviews and parents with developmental disabilities recognized the lack of career guidance programs for people with developmental disabilities and responded positively to the need. Next, as a result of the interview conducted to develop a parent education program based on the desire for career and career guidance for people with developmental disabilities, programs for understanding developmental disabilities, programs for counseling basics for children with developmental disabilities, and motivation for understanding jobs and choosing careers It was investigated that grant counseling programs, job placement for people with developmental disabilities, and adaptation support programs were needed.
-
Three Tensions in Designing Tasks on Statistical Inference
송창근,이경화,박미미,전혜진,이은정,서민주 대한수학교육학회 2019 수학교육학연구 Vol.29 No.4
This study investigated tensions in designing tasks on statistical inference. In previous studies, tensions in teaching practices have been mainly described in terms of multiple and sometimes contradicting goals or responsibilities of individual teachers. However, the institutional conditions which govern tensions were less discussed in the literature. In this study, we broaden the concept of tensions based on Anthropological Theory of Didactics to interpret tensions as institutional phenomenon. Also, we induce a model of tensions in designing tasks by the expanded concept of tensions. Tensions in task design of co-learning inquiry community of teachers and researchers were analyzed based on the model. Results show that designing tasks on statistical inference was influenced by three main tensions among mathematics in academics, mathematics in educational systems, and mathematics in classrooms.
-
송창근,장현주,이금진 한국재난정보학회 2015 한국재난정보학회 논문집 Vol.11 No.4
해마다 반복적으로 인적・물적 피해를 유발하여 사회 안전에 큰 영향을 미치는 산업재해, 교통사고, 화재, 범죄 등의 항목을 4대 사회안전지표로 선정하여 2003년 이후 시계열에 따른 변화 추이를 분석하였다. 2003년을 기준으로 산업재해가 27.8% 감소하여 가장 두드러지게 개선된 것으로 확인되었으며, 교통사고와 범죄자표는 12% 정도 저감된 것으로 나타났다. 그러나 화재의 경우 2006년 이후 국가화재분류체계가 바뀌면서 경미한 생활 화재도 발생건수에 포함되도록 변경되어 기준년도 대비 40% 화재안전지수가 증가한 것으로 나타났다. Four major social safety indexes including industrial accident, traffic accident, fire, and violent crime were selected, and transition of those values by time series data analysis since 2003 was presented. Comparing with the 2003 figure, the index of industrial accident was reduced by 27.8%, which was the most improved safety index. The indicators describing the traffic accident and violent crime rate were reduced by approximately 12%. However, the fire safety index showed an increase of 40% compared with the base year because national fire classification system was changed so that minor fire is also included in the counting since 2006.
-
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
