• Journal of the KSME
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• v.28 no.2
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• pp.162-164
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• 1988

모든 산업 분야에서 제품의 정밀성과 생산성 향상을 위하여 자동화가 추진되고 있으며 이를 뒷 받침하기 위한 제어 공학의 필요성이 점증되고 있다. 생산 시스템을 자동화 하므로서 생산 원 가의 절감 및 제품의 품질 향상은 물론이고, 작업 조건이 좋지 못한 곳에서의 작업도 가능하게 해 주므로 제어 공학은 생산 공장뿐만 아니라 가정용 및 사무용 설비에도 적용되고 있다. 이와 같은 상황하에서 제어 공학의 필요성은 더욱 고조되고 있으며, 국내 대학의 전기 계열공학과는 물론이고, 대부분의 기계계열 학과에서도 제어공학을 교과과정에 반영하고 있다. 그러나, 국내 대학의 기계 계열 공학과에서 설강하고 있는 제어 공학의 교과 과정은 체계화되어 있지 못한 실정이므로 이를 분석해 보고 문제점을 파악하여 개선 방안을 강구해 보는 것은 중요한 의미가 있다고 생각된다.

• Journal of Engineering Education Research
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• v.14 no.2
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• pp.60-67
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• 2011

This study is to analyze employment stress and career decision efficacy of undergraduates from engineering and social science department. Research object is 310 undergraduates(engineering department: 164 and social science department: 146) from three colleges in Seoul and Cheju. As a result of testing employment stress and career decision efficacy undergraduates had significant difference according to major and grade. Employment stress of undergraduates from engineering department was more serious than undergraduates from social science department. As a result of analyzing on the basis of grade employment stress of sophomores was more serious than freshmen. Career decision efficacy of undergraduates from social science department was higher than other group. Career decision efficacy of freshmen was higher than sophomore. Employment stress and career decision efficacy showed negative corelation in corelation analysis. This study implies that course educating program should be specialized according to major and grade. This study suggests that we should develop course educating curriculum connecting with major education.

• Journal of Science Education
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• v.37 no.2
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• pp.405-415
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• 2013

The purpose of this study was to investigate high school students in natural science track and engineering major university students' perceptions about the writing and composition education. A total of 318 high school students in natural science track from two high schools in a metropolitan area and 447 university students majoring in engineering from three universities participated in the survey and asked to response their perceived status and needs of writing education for science-engineering track. The survey instrument, developed by Lee et al.(2009), was used for this study. The data was analyzed through the SPSS 18.0 program for Windows for Multiple Response Frequency Analysis, Descriptive Statistics, Independent Samples t-test, and One-way Analysis of Variance. The results indicated that high school students relatively perceived that writing education was less necessary compared to university students. In addition, high school students found writing less difficult than university students do. In related to studying their experience with writing and composition education, almost no high school students have taken writing classes and university students have taken an average of one class. Most university students who took writing classes took basic writing classes that were not programmed for students in Science and Engineering. In the basic survey to revitalize writing and composition education for Science and Engineering students in different majors, the level of writing and composition education required by students in each major was different. Writing was considered most necessary for students majoring in Chemical Engineering, followed by students majoring in Mechanical Engineering and Electronic Engineering. The study of writing and composition education for high school and college should extend to studies on teachers or professors who teach writing, studies on contents and methods of writing education, and studies on the development of writing programs for different majors in university.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.29-29
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• 2015

수자원의 지속적인 관리 및 효율적인 활용을 위하여 수문량의 예측과 분석은 필수적인 과정이라 할 수 있으며 이에 따라 다양한 수문 모형이 구축되고 강우, 유량 등 대표적인 수문량의 예측이 수행되어져 왔다. 그 중에서도 수문 시계열 모형은 시간의 흐름에 따라 일정하게 기록되어온 수문 자료를 확률적인 과정을 통하여 모형을 구축하고 이를 바탕으로 미래 수문량을 예측하는 데활용되는 모형으로, 과거에 기록된 수문 패턴이 미래에도 지속된다는 가정 하에 구축된다. 일반적으로 시계열 모형은 하나의 자료계열로 모형을 구축하는 단변량 모형과 원 자료계열 외에 다른 자료계열을 고려하여 모형을 구축하는 다변량 모형이 있으며, 다변량 모형은 원 자료계열에 영향을 미치는 외부변수를 고려함으로써 두 자료계열간의 상관성을 모형에 반영할 수 있는 장점을 가지고 있다. 또한 자료계열의 계절성을 고려하여 시계열 모형을 구축할 경우, 수문 시계열이 가지고 있는 계절적 영향을 잘 반영할 수 있다. 따라서 본 연구에서는 계절성을 고려한 다변량 시계열 모형인 SARIMAX(Seasonal AutoRegressive Integrated Moving Average with eXogenous) 모형을 이용하여 대표적인 수공구조물인 댐의 유입량 예측을 수행하였다. 일반적으로 댐 유입량 예측에는 댐의 유입량과 상관성이 높은 강우가 외부변수로 사용되어져 왔으나, 이 외에도 영향을 미칠 수 있는 지점특성치를 고려하여 모형을 구축한 후 비교하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.32-32
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• 2019

본 연구에서는 다양한 시계열 예측에서 우수한 성과를 보이고 있는 딥러닝 알고리즘 LSTM(Long & Short Term Memory) 모형의 수문시계열 분석에 있어서의 적용성을 검토하고, 모형의 활용가능성과 한계점을 제시하는 것을 목적으로 한다. 이를 위해 물리적 강우-유출 모형과의 비교 검토, 일반하천 및 감조하천에서의 수위 예측, 월강수량 및 댐방류량을 활용한 갈수량 예측 등에 LSTM 모형을 적용하고, 결과분석을 통해 모형의 장 단점을 요약하였다. 상기 목적을 위한 모형적용 결과, LSTM 모형은 수문시계열 예측에 있어 우수한 예측능력을 보이고 있으며, 이는 양적/질적 수문자료가 충분히 확보되었지만, 수문해석 모형구축에 제약이 있는 유역에 대해서 보완적 수단으로 사용이 가능할 것으로 판단된다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.325-327
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• 2004

제품계열공학(Product Line Engineering, PLE)은 효과적인 재사용 기법으로, 핵심자산(Core Asset) 개발 프로세스와 어플리케이션 공학 프로세스로 구성된다. 핵심자산 개발 프로세스는 제품계열의 여러 어플리케이션들의 공통 휘쳐(Feature)들을 모델링 한 핵심자산 개발에 사용된다. 어플리케이션 공학 프로세스에서 핵심자산을 인스턴스화(instantiation)하고, 핵심자산이 제공하지 않는 어플리케이션 종속적인 기능을 모델링 한 후, 이 두 모델을 통합하여 목표 어플리케이션을 생성 개발한다. 현재의 제품계열공학 연구는 핵심자산 개발과 인스턴스화 과정에 집중되어 있고, 어플리케이션 공학 프로세스의 연구는 개념적 수준에 머물고 있다. 특히, 인스턴스화된 핵심자산 모델과 어플리케이션 종속 모델의 통합의 실용적 기법이 미흡하다. 본 논문에서는 어플리케이션 공학 프로세스의 주요 활동들에 대한 작업 순서와 실용적 지침을 제공한다.

• Journal of Engineering Education Research
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• v.13 no.6
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• pp.80-86
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• 2010

The purpose of this study is to explore the factors that influence the choice of a major in a sample of 655 science students enrolled in 14 high schools. It was found that more than 80 percents of students had already chosen their desired majors by the second year of high school. Half intended to apply for medical colleges. The preference of medical colleges was more pronounced in high-ranking students. It was found that students who scored highly on career decision level assessments were more likely to major in science. The most important determinant for students in choosing majors was subject interests. Career concerns and students' grades also influenced the choice of majors. In this study, it is concluded that the career decision level of students and subject interests influenced their choice of major. These findings suggest the career development programs and efforts to expose students to various career paths will increase the ability to make informed educational decisions.

• Journal of the Korea Society of Computer and Information
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• v.19 no.8
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• pp.161-168
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• 2014

This study conducted a survey on the perception for legal education efficiency of engineering department. This study is to search for more efficient legal education method to engineering department's students, reflecting the reality that our universities have appointed the subjects - related with engineering accreditation such as engineering law - as compulsory subjects. The method of this study is that with questionnaire extracted the advanced researches, it selected the 180 undergraduates of engineering college in C university as original samples, chose 161 data as final efficient samples except for 19 untrustworthy respondent, analyzed and drew the result. The specific results are as follows. In case of legal education in engineering department, it was found that women rather than men, the students first taking the subject more than those retaking the subject, the students who have taken the basic law subjects such as law and society, an introduction to law, and the students who hope to get a job in their major field showed the higher class concentration degree and satisfaction degree.

• Fire Science and Engineering
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• v.28 no.4
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• pp.89-96
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• 2014

The purpose of this study is to examine the awareness survey on the life and laboratory safety of the college students. For the research, data was collected from 442 students of health, engineering, fire fighting and food & cook department. Research tools were used SPSS win 19.0, the mean and standard deviation, t-test, Pearson's correlation coefficient was used. Comparing the life safety consciousness with laboratory safety consciousness, showed life safety awareness and safety laboratory has recognized the similarities (Pearson's correlation coefficient ${\chi}^2=296.456$, p < 0.001). Results of awareness survey to safety management, the safety awareness are difference with the type of respondents major subjects. This order was Food & Cook > Fire fighting > Health > Engineering department.

• The KIPS Transactions:PartD
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• v.16D no.1
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• pp.93-104
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• 2009

Modular implementation of a feature is a first step toward feature-oriented product line engineering, which develops and then utilizes core assets to configure products in terms of features. Aspect-oriented programming provides effective mechanisms for improving the modularity of feature implementations. However, as features in general are not independent of each other, changes in the implementation of one feature may cause changes to or side effects in the implementation of other features. Moreover, since the time at which a feature is incorporated into products, called feature binding time, may be various from compile time through load time to run time, a feature may have to be implemented differently depending on when the feature is bound into a product. To make each feature implementation module as independent as possible, this paper proposes aspectual implementation patterns that can effectively separate feature dependencies as well as feature binding time from feature implementation modules. These patterns enable flexible composition of feature implementation modules without affecting other modules according to feature selection. The approaches are demonstrated and evaluated based on a product line of scientific calculator applications.