• 정보교육학회논문지
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• 제21권3호
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• pp.351-360
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• 2017

본 연구는 디자인 사고를 적용한 SW교육이 초등학교 예비교사의 창의성에 미치는 효과를 분석하였다. 제주 소재 한 대학교 초등컴퓨터교육 강좌를 신청한 학부 1학년 22명의 초등학교 예비교사들을 대상으로 연구를 실시하였다. 연구대상인 예비교사들은 SW교육에 대한 기본적인 이해를 하지 못하고 있을 뿐만 아니라 연구에 사용할 EPL 도구인 스크래치 프로그램에 대한 기초적인 지식을 갖추지 못하였다. 따라서 창의성 사전검사 이전에 18차시에 걸쳐 SW교육에 대한 기본 교육과 스크래치 프로그램의 기본 기능을 학습하는 시간을 가졌다. 창의성 사전검사를 실시하고 21시간에 걸쳐 디자인 사고를 적용한 SW교육을 진행한 후 창의성 사후검사를 실시하였다. 창의성 검사도구로는 Torrance의 TTCT 도형 검사지 A, B형을 사용하여 분석하였다. 검증 결과, 디자인 사고를 적용한 SW교육이 초등학교 예비교사들의 창의성 향상에 효과적인 것으로 나타났다.

• 문화기술의 융합
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• 제9권5호
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• pp.957-969
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• 2023

본 연구는 예비유아교사의 교직선택동기, 교직인성, 그릿이 행복플로리시에 미치는 영향을 살펴보기 위하여 경기도 H시에 소재한 한 전문대학 유아교육과에 재학중인 112명의 예비유아교사를 대상으로 실시되었다. 중다회귀분석을 통해 각 변인이 행복플로리시에 미치는 영향을 살펴본 결과, 예비유아교사의 교직선택동기, 교직인성, 그릿은 행복플로리시에 모두 유의한 영향을 미쳤으며, 그 영향력의 크기는 교직인성이 나머지 두 변인에 비해 큰 것으로 나타났다. 다음으로, 교직선택동기, 교직인성, 그릿의 하위요인이 행복플로리시에 미치는 영향을 살펴본 결과, 능동적 동기 및 수동적 동기, 보편인성, 노력의 꾸준함 요인이 예비유아교사의 행복플로리시에 영향을 미치는 것으로 나타났다. 본 연구는 예비유아교사의 행복플로리시 향상을 위한 프로그램 마련의 기초적 자료를 제공하였으며, 교직선택동기 및 인성, 그릿의 향상을 통한 행복플로리시 증진 프로그램 설계 및 이의 검증에 대한 후속 연구를 제안하였다.

• International Journal of Automotive Technology
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• 제5권3호
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• pp.145-153
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• 2004

Potential fuel economy improvements and environmental legislation have renewed interest in Gasoline Direct Injection (GDI) engines. Computational models of fuel injection and mixing processes pre-ignition are being developed for engine optimisation. These highly transient thermofluid models require verification against temporally and spatially resolved data-sets. The authors have previously established the capability of PDA to provide suitable temporally and spatially resolved spray characteristics such as mean droplet size, velocity components and qualitative mass distribution. This paper utilises this data-set to assess the predictive capability of a numerical model for GDI spray prediction. After a brief description of the two-phase model and discretisation sensitivity, the influence of initial spray conditions is discussed. A minimum of 5 initial global spray characteristics are required to model the downstream spray characteristics adequately under isothermal, atmospheric conditions. Verification of predicted transient spray characteristics such as the hollow-cone, cone collapse, head vortex, stratification and penetration are discussed, and further improvements to modelling GDI sprays proposed.

• The Journal of the Acoustical Society of Korea
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• 제18권3E호
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• pp.30-36
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• 1999

In this paper, we develop a hybrid speaker recognition system [1] enhanced by pre-recognizer and post-recognizer. The pre-recognizer consists of general speech recognition systems and the post-recognizer is a pitch detection system using adapted continuous wavelet transform (ACWT) to improve the performance of the hybrid speaker recognition system. Two schemes to design ACWT is considered. One is the scheme to search basis library covering the whole band of speech fundamental frequency (speech pitch). The other is the scheme to determine which one is the best basis. Information cost functional is used for the criterion for the latter. ACWT is robust enough to classify the pitch of speech very well, even though the speech signal is badly damaged by environmental noises.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(3)
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• pp.141-144
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• 2001

In this paper, a new algorithm for extracting and recognizing characters from video, without pre-knowledge such as font, color, size of character, is proposed. To improve the recognition rate for videos with complex background at low resolution, continuous frames with identical text region are automatically detected to compose an average frame. Using boundary pixels of a text region as seeds, we apply region filling to remove background from the character Then color clustering is applied to remove remaining backgrounds according to the verification of region filling process. Features such as white run and zero-one transition from the center, are extracted from unknown characters. These feature are compared with a pre-composed character feature set to recognize the characters.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 추계 학술논문 발표대회
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• pp.31-34
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• 2012

The construction industry is hard to apply to the statistical methodology of 6-sigma. For example, it is hard to verification of fraction defective through quantity production. So, in this research the proposed approach for effective process of technology development through establish of innovative methodology reflecting constructional characteristics. Few studies have progressed in construction industry, but there are so many examples using 6-sigma for applying to customer needs at the product development or process improvement in manufacturing business. So this research proposed the design methodology using QFD of 6-sigma and TRIZ.

• 영어어문교육
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• 제10권3호
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• pp.21-40
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• 2004

This study Questioned what happens in L2 reading comprehension of the expository text, as measured by recall and inference-making abilities, when a L2 reader was induced to develop a content schema about the topic of a target text, but the structure of that schema departs from the structure of the target text Seventy-four. Korean university students read either the same version text twice (consistent condition) or two different version texts (inconsistent condition) with a three-day interval between the two readings. The results of a verification test indicate that, for those subjects with higher L2 reading proficiency, the inconsistent condition was more beneficial than the consistent condition for the inference-making task. On the other hand, for lower-level L2 readers, the consistent condition was more favorable for the recall task. It was concluded that inducing a structurally inconsistent schema through an L2 pre-reading would be beneficial only when the reader's L2 linguistic ability is proficient enough to produce necessary propositions from the pre-reading.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2002년도 금형가공 심포지엄
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• pp.3-10
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• 2002

In this study on machine measuring system based on solid feature was developed. This system was applied with injection mold using 3 dimensional solid modeler for verification. Developed program include pre-processor, main processor, and post processor. In pre-processor there are functions which check intersection, simulate motion of probe and calculate measuring time. Main processor generates measuring path and output NC code in Unigraphics. In post-processor functions that include evaluation of undercut or overcut and display of measuring procedure are offered. In addition analysis module for quality control of measured data on manufactured product was developed with geometric and dimensional tolerance concept. As the result developed program could get stability of system, precision of product, rapidity and cost down of manufacturing process compared with before measuring process.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2003년도 춘계학술대회논문집
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• pp.120-124
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• 2003

NVH issue at idle condition is one of the major concerns of Passenger and Commercial Vehicle including Sports Utility Vehicle Especially steering wheel vibration at idle condition is a very complex problem and affected by firing frequency of the engine, stiffness of a steering wheel system and the body to which the steering wheel system is attached. To avoid vibration mode coupling between each system of a vehicle, experimental and analytical method has been used at the pre-prototype stage. The resonance frequency of the body and the frame has been decoupled by CAE and the resonance frequency of steering wheel system has been set in between the 1st bending frequency of body and frame. These Results has been used as design guidelines tot the prototype drawing stage. The experimental verification of tile modified pre-prototype vehicle shows good results of the vibration mode decouple. Modal test of prototype vehicle also confirms the vibration mode decouple between each system.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2008년도 춘계 종합학술대회 논문집
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• pp.126-130
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• 2008

에듀테인먼트를 대학교육과정에 적용하기 위해서는 에듀테인먼트콘텐츠의 개발 프로세스 및 에듀테인먼트콘텐츠의 설계 방법론, 효율적인 정보전달 방법, 교육효과를 검증하기 위한 방법 등을 구체적으로 제시하여 학문적인 체계를 갖출 필요성이 있다. 본 논문은 이를 위한 선행연구로서 온라인 에듀테인먼트콘텐츠의 구성요소를 교육적 요소, 재미요소, 인터랙션 요소, 시각화 요소의 네 가지 방향으로 도출하였다. 그 결과 에듀테인먼트콘텐츠의 설계 시 고려해야할 기준 및 분석의 틀을 제시할 수 있을 것으로 기대한다.