• 공학교육연구
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• 제8권3호
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• pp.36-48
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• 2005

공학분야의 빠른 발전에 따라 교육이 뒤쳐지는 현상이 심화되고 있다. 이러한 시기에 시의 적절한 공학교육을 위해서는 교수들의 임의적인 교과과정의 개정이 아닌 적절한 시스템에 의한 교과과정의 개편이 요구되어진다. 본 논문에서는 기능직 교과에서 사용하던 직무분석법을 일반 교과과정 설계에 사용한 예를 보여준다. 직능원에서 제시한 교과과정 설계는 지나치게 세부적으로 작업에 필요한 competence(지식, 기능력, 태도 도구 등)를 제시하였다. 일반 교과과정에서는 이렇게 자세한 직무분석은 피하고 시대에 따라 달라지는 목표학습 성과를 설정하고 이것을 이루기 위한 교과과정을 개발하기 위해서 졸업생의 사회진출 추이를 조사하여 대표 직무를 선정하고 직무를 분석하여 필요한 competence를 도출하고 거기에 따라 교육목표도 수정하였다. 전문가 회의도 주체하여 졸업생 및 산업체의 의견도 수렴하여 실제 현장에서 필요한 교육을 실시하고자 한다. 이러한 교과과정의 개편은 명지대학교에서 수행하고 있는 순환적 자율 개선형 교육제도의 일환으로 실시되고 있다.

• 반도체디스플레이기술학회지
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• 제15권4호
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• pp.67-72
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• 2016

In this study, the texturing and the emitter formation processes were carried out with the wafer adhesion method to increase the productivity and reduce the production cost of the multi-crystalline silicon solar cell. After fabricating $156{\times}156mm$ solar cell according to the wafer adhesion method, the operation characteristics were analyzed and compared with those of the solar cell fabricated by the standard process method. In the case of a solar cell formed by the wafer adhesion method, it showed Jsc of $32.87mA/cm^2$, Voc of 0.612V, FF of 78.04% and efficiency of 15.71% respectively. The efficiency of the solar cell formed by the wafer adhesion method was 0.1% higher than that of the solar cell formed by the standard method. In addition, the productivity of the texturing and the emitter formation processes is expected to be approximately doubled. Therefore, it is expected that the manufacturing cost of the multi-crystalline solar cell can be reduced due to the improved productivity compared with the standard process.

• 제어로봇시스템학회논문지
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• 제21권7호
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• pp.621-626
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• 2015

This paper presents a camera calibration method in order to estimate the lane detection and inter-vehicle distance estimation system for an automotive safety driving system. In order to implement the lane detection and vision-based inter-vehicle distance estimation to the embedded navigations or black box systems, it is necessary to consider the computation time and algorithm complexity. The process of camera calibration estimates the horizon, the position of the car's hood and the lane width for extraction of region of interest (ROI) from input image sequences. The precision of the calibration method is very important to the lane detection and inter-vehicle distance estimation. The proposed calibration method consists of three main steps: 1) horizon area determination; 2) estimation of the car's hood area; and 3) estimation of initial lane width. Various experimental results show the effectiveness of the proposed method.

• 공학교육연구
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• 제14권5호
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• pp.14-25
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• 2011

This study had a purpose to investigate elements of teamwork skill for engineering students. For this, literature review and delphi method were used. The delphi survey was conducted with 20 experts consisting of experts in engineering, education, and industry field. 22 elements of teamwork skill for engineering students were finally developed. Teamwork skill included knowledge, skill, and attitude for engineering students. Further, the results of this study present a guideline to develop teamwork skill in engineering education.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 추계학술대회 논문집
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• pp.504-505
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• 2007

In 2004, a department of engineering education was established at Virginia Tech and Purdue university in the United States. Innovation of engineering education for improving the quality of engineering college education has been progressing. Content of subject of engineering exploration was developed newly for engineering college freshmen. And, effect of a sustainable energy design project on academic achievement for engineering freshmen at Virginia Tech in 2006 was researched. The project was performed throughout a 6 weeks period with one by 50 minutes lecture by professor and one 90 minutes workshop by TAs (Teaching Assistants) every week. To analyze the data, statistical package SPSS (ver. 15.0) was used. In responses to an open-ended question about freshmen students' perceptions of their improvement in design skills, the 3 most identified skills were teamwork, design process, knowledge. In, Korea, an innovation relating to engineering curriculum, facility, instructional strategy and so on will be required.

• 공학교육연구
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• 제24권2호
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• pp.20-28
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• 2021

In 2020, the COVID-19 pandemic has brought dramatic changes in the field of engineering education. Contrary to the traditional engineering education emphasis on content-oriented, design-based, hands-on, experimental, and field experience, most of engineering classes in 2020 had to be undertaken remotely online. However, it has not been explored how professors and students perceive about such a shift in engineering education. The aim of the current study was to investigate the perceptions of professors and students on online classes in engineering colleges during spring Semester 2020. Questionnaire data were collected from 100 professors and 4,152 students in the college of engineering. The results of this study were as following: Students were less satisfied with the online classes than professors. The online lecture method that students were most satisfied with was the recorded lecture. This is likely due to the fact that the recorded lectures can be repeated multiple times anytime, anywhere. Moreover, the experimental classes, which conventionally has more of an emphasis on the hands-on experience, also had to be conducted remotely, showing even lower satisfaction among students. Most of professors reported that the average hours they spent on preparing for online lecture increased compared to face-to-face class. Both professors and students preferred in-person exam as a desirable method of end-of-semester assessment for grading. The results of the current study have important implications for the improvement of online course environments. It is important for professors to design a structured class suitable for online education and understand the challenges students encounter during online classes. Also, professors should communicate more openly about their expectations and rubrics for class goals and assignments. Schools also needs to make effort to provide the support for the internet environment of students.

• 공학교육연구
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• 제17권5호
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• pp.51-58
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• 2014

This study proposes an effective data management method for easing the burden on self-study report by analyzing operational data on accredited engineering programs. Four analysis criteria are developed: variability, difficulty level of collecting, urgency of analysis, timeliness. After the operational data are analyzed in terms of the analysis criteria, the data which should be managed in time are extracted according to the analysis results. This study proposes a data management method in which tasks of managing the timely-managed data are performed based on the regular academic schedule, so that the result of this study may be used as a working-level reference material.

• Nuclear Engineering and Technology
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• 제55권8호
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• pp.2773-2784
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• 2023

It is essential to evaluate the blasting-enhanced permeability (BEP) feasibility of a low-permeability sandstone-type uranium deposit. In this work, the mineral composition, reservoir physical properties and rock mechanical properties of samples from sandstone-type uranium deposits were first measured. Then, the reformability evaluation method was established by the analytic hierarchy process-entropy weight method (AHP-EWM) and the fuzzy mathematics method. Finally, evaluation results were verified by the split Hopkinson Pressure Bar (SHPB) experiment and permeability test. Results show that medium sandstone, argillaceous sandstone and siltstone exhibit excellent reformability, followed by coarse sandstone and fine sandstone, while the reformability of sandy mudstone is poor and is not able to accept BEP reservoir stimulation. The permeability improvement and the distribution of damage fractures before and after the SHPB experiment confirm the correctness of evaluation results. This research provides a reformability evaluation method for the BEP of the low-permeability sandstone-type uranium deposit, which contributes to the selection of the appropriate regional and stratigraphic horizon of the BEP and the enhanced ISL of the low-permeability sandstone-type uranium deposit.

• Geomechanics and Engineering
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• 제13권5호
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• pp.845-860
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• 2017

It is very important to study displacement prediction in geotechnical engineering. Nowadays, the grey system method, time series analysis method and artificial neural network method are three main methods. Based on the brief introduction, the three methods are analyzed comprehensively. Their merits and demerits, applied ranges are revealed. To solve the shortcomings of the artificial neural network method, a new prediction method based on new evolutionary neural network is proposed. Finally, through two real engineering applications, the analysis of three main methods and the new evolutionary neural network method all have been verified. The results show that, the grey system method is a kind of exponential approximation to displacement sequence, and time series analysis is linear autoregression approximation, while artificial neural network is nonlinear autoregression approximation. Thus, the grey system method can suitably analyze the sequence, which has the exponential law, the time series method can suitably analyze the random sequence and the neural network method almostly can be applied in any sequences. Moreover, the prediction results of new evolutionary neural network method is the best, and its approximation sequence and the generalization prediction sequence are all coincided with the real displacement sequence well. Thus, the new evolutionary neural network method is an acceptable method to predict the measurement displacements of geotechnical engineering.

• 실천공학교육논문지
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• 제6권2호
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• pp.77-84
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• 2014

최근 플립드 러닝에 대한 교육분야에서의 관심이 고조됨에 따라 플립드 러닝을 적용해 보고자 하는 공과대학 소속 교수들은 점차 증가 추세에 있다. 그러나 플립드 러닝을 운영하기 위한 수업설계 관련 선행연구는 많지 않다. 이에 본 연구는 공과대학 전공수업에서 플립드 러닝 운영 사례를 기반으로 플립드 러닝 설계 모형을 제안하고자 한다. 이를 위해 메카트로닉스공학과의 기계진동학 교과목을 플립드 러닝으로 운영하였다. 본 연구의 결과는 공과대학 이론중심 교과목의 플립드 러닝 교수법 적용 및 수업설계에 있어 실천적 가이드라인을 제시해 주는데 연구의 의의가 있겠다.