• 컴퓨터교육학회논문지
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• 제8권4호
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• pp.1-13
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• 2005

본 논문에서는 컴퓨터-소프트웨어 분야를 중심으로, 산업계에서 요구하는 기술 요소와 대학사이의 불균형을 완화시키기 위한 정책의 일환으로 정보통신부의 주도하에 개발된 산업체 수요지향적 교과과정 개발 과정과 그 결과를 다룬다. 컴퓨터-소프트웨어 분야를 소프트웨어 개발, 시스템 통합, 임베디드 시스템 소프트웨어, 멀티미디어 및 게임 소프트웨어, 비즈니스 정보 기술 등의 다섯 가지 세부 전공 트랙으로 세분하였다. 각 트랙에 대해 네 개의 수요지향적 교과목을 포함한 교과과정을 개발하였고, 수요지향적 교과목들의 상세강의개요와 과목교안을 개발하였다. 한편 이렇게 개발한 결과물을 활용하여 다수의 대학에서 2004년부터 실제 강의가 이루어져왔다.

• 공학교육연구
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• 제10권1호
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• pp.20-33
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• 2007

본 논문은 지방에 소재하고 있는 공과대학에서 교수, 재학생 및 졸업생 등 공학교육 당사자들의 실무형 공학교육에 대한 인식을 조사한 결과를 분석한 것이다. 여러 대학들을 조사하여 실무형 공학교육을 각각 기업 맞춤형, 전공 강화형, 기본소양 강화형 및 기타 등 4가지 형태로 분류하였고 이들에 대한 공학 교육 당사자들의 인식도를 조사한 것이다. 그리고 취업을 위해 어떤 교육 내용이 필요한가에 대해서도 조사하였다. 조사 결과 응답자들은 실무형 공학교육을 기업 맞춤형 교육으로 가장 많이 이해하고 있었고 실무 적응을 위한 기본소양 강화 교육으로 인식하는 응답자도 상당수가 있었다. 신입사원 채용 시험에 교수와 졸업생은 인성, 품성 등이 가장 중요하다고 답한 반면 재학생은 전공 실력과 영어에 큰 비중을 두고 있었다. 이공계 학생으로 가장 부족하다고 느끼는 점은 졸업생과 재학생 모두 영어 능력을 들었으나 교수는 전공 실력 부족이라고 응답했다. 본 연구는 실무형 공학교육에 대한 인식과 이를 위한 공학교육의 발전 방향을 유추할 수 있는 기초 자료를 추출했다고 판단되나 실무형 공학교육에 대해 좀 더 세밀하고 광범위한 연구가 계속되어야 할 것으로 보인다.

• 한국보육지원학회지
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• 제8권6호
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• pp.193-217
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• 2012

본 연구는 어린이집 교직원의 전문성 신장을 위한 장학프로그램을 산 학 관 협력으로 계획, 운영하는 프로그램을 개발하고 적용과정을 분석함으로써 어린이집 장학의 활성화 방안을 모색하는데 자료를 제공하고자 하였다. 이를 위해 전문성 평가기준에 따라 선정된 분야별 관련 전문가를 대상으로 한 델파이 조사와 어린이집의 보육교직원을 대상으로 한 적절성 인식조사를 실시하여 프로그램 시안을 개발한 후, 중소도시에 위치한 A어린이집 원장과 교사를 대상으로 장학을 실시하였다. 연구결과, 첫째, 산 학 관 협력 어린이집 장학프로그램 시안은 장학프로그램의 내용 영역 27개 항목과 운영 영역 36개 항목, 총 63개 항목으로 구성되었으며, 적절성 인식 조사결과 장학영역, 운영을 위한 주체별 역할, 운영을 위한 상호협력적 역할에 대해서 모든 항목의 적절성이 평균 3.0이상으로 나타났다. 둘째, 산 학 관 협력 어린이집 장학프로그램의 적용은 3가지 주제를 중심으로 실시하였으며, 실시과정을 통해 참여자들은 산 학 관 협력에 대해 '협력의 이중성', '아쉬움과 한계'를 경험한 것으로 나타났다.

• Journal of Power Electronics
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• 제4권1호
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• pp.28-38
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• 2004

In this paper, the position control of a detuned indirect field oriented control (IFOC) induction motor drive is studied. A proposed Simple-Neuro-Controllers (SNCs) are designed and analyzed to achieve high-dynamic performance both in the position command tracking and load regulation characteristics for robotic applications. The proposed SNCs are trained on-line based on the back propagation algorithm with a modified error function. Four SNCs are developed for position, speed and ｄ-ｑ axes stator currents respectively. Also, a synchronous proportional plus integral-derivative (PI-D) two-degree-of-freedom (2DOF) position controller and PI-D speed controller are designed for an ideal IFOC induction motor drive with the desired dynamic response. The performance of the proposed SNCs and synchronous PI-D 2DOF position controllers for detuned field oriented induction motor servo drive is investigated. Simulation results show that the proposed SNCs controllers provide high-performance dynamic characteristics which are robust with regard to motor parameter variations and external load disturbance. Furthermore, comparing the SNC position controller with the synchronous PI-D 2DOF position controller demonstrates the superiority of the proposed SNCs controllers due to attain a robust control performance for IFOC induction motor servo drive system.

• 가정과삶의질연구
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• 제33권1호
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• pp.41-59
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• 2015

The purpose of this study was to explore the patterns of investment on children, analyze the differences in academic performance and social relations by the patterns of investment on children, and variables that influence academic performance and the social relations of children. To achieve such research objectives, the raw data from the 2012 Korean Child and Youth Panel investigation were used for the research. The analytical subjects of this research were the parents and the third-grade students of a middle school and the analytical methods used were: frequency, percentage, average, standard deviation, Chi-squared test, ANOVA, Duncan's Multiple Range test, K-mean cluster, and multiple regression analysis depending on the research purpose. The results of the research are as follows. Firstly, as a result formalizing investment pattern on children, there were five patterns of: experience oriented investment, passive experience investment, private education oriented investment, aggressive investment, and passive investment patterns. Secondly, for the patterns of investment on children, the level of academic performance was found to be the highest within the aggressive investment and the experience oriented investment types. The social relation level was found to be the highest with the experience oriented investment, with it being low in private education oriented investment and passive investment patterns. Thirdly, for the factors influencing the academic performance of the children, it was found to be higher in aggressive investment, private education oriented investment, experience oriented investment and passive experience investment compared to passive investment. Some sociological factors were also found to be influential such as mother's age, father's education, sex of children, school area of children, type of house, and income. For the social relation level of the children, the factors of the aggressive investment, passive experience investment, and the experience oriented investment as well as the sociological factors by sex of children and income level are influential.

• 전력전자학회:학술대회논문집
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• 전력전자학회 1998년도 전력전자학술대회 논문집
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• pp.376-379
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• 1998

This paper be described the constant speed control of induction motor for high performance. Vector control system which is used the stator current, voltage of IM is modeled without the speed, flux sensor. The proposed control system be simulated using Matlab with Simulink. Results include the fast response of the constant speed and torque in proposed system. For high performance, this paper presents the robust characteristics of field oriented control system for IM.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2008년도 하계학술대회 논문집
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• pp.216-218
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• 2008

This paper presents a space vector pulse width modulation (SVPWM) technique for four-switch three-phase (4S3P) inverter topology. The method aims to apply Field Oriented Control (FOC) of Induction motor using 4S3P. The simulations are carried out and the experimental results are given to verify the feasibility of this method.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1993년도 하계학술대회 논문집 B
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• pp.677-679
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• 1993

The necessary parameter and states for the field-oriented control scheme of induction motor have been correctly estimated by EKF(Extended Kalman Filter). In this paper, Reduced-Order EKF(Extended Kalman Filter) is proposed tn estimate rotor speed and rotor flux. It is profitable in the implementation of field-oriented control scheme rather than Full-Order EKF because of saving operational quantity. The simulation results show that the proposed Reduced-Order EKF is excellent performance.

• 대한영양사협회학술지
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• 제21권1호
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• pp.72-82
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• 2015

The purpose of this study was to provide preliminary data for competitive dominance in an institutional foodservice environment. Data were collected from 85 experts and practitioners on customer-oriented service contact elements and contact fields in the foodservice industry. PASW Statistics ver.18 and MS Excel were used for data analysis. From the pilot study, 67 service contact-elements were derived. Contribution rate analysis and frequency analysis in each contact field were performed in order to categorize four factors, including environment-oriented contact, product-oriented contact, service-oriented contact, and image-oriented contact fields. Thirty three contact elements were derived, and environment-oriented contact consisted of eight contact-elements (cleanliness of restaurant/kitchen, etc.), product-oriented contact consisted of twelve contact-elements (food taste, etc.), service-oriented contact consisted of seven contact-elements (service quality, etc.), and image-oriented contact consisted of six contact-elements (image/reputation, etc.). The results of study will be useful to develop an effective marketing program for competitive dominance in an competitive foodservice industry environment.

• 가족자원경영과 정책
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• 제14권2호
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• pp.127-152
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• 2010

This study examined the satisfaction of the married women from aged 20s through 50s with well-being oriented foods, considering the importance of each subordinate field and verifying the differences between the groups according to socio-demographic factors, purchase behavior factors, and well-being oriented dietary life factors, followed by an analysis of the relative influence of those relevant factors. A preliminary survey was conducted from January 4th-11th, 2009 to check if there were any problems or misunderstood parts before the main survey. After the preliminary study was conducted, certain problems were adjusted and supplemented, and then the main survey was conducted for twenty-three days, from January 4th to February 5th, 2009. The summaries of this study are as follows: First, in the view of the purchase behavior, the mainly purchased well-being oriented foods were farm products, and the leading purpose of the purchase was for the parents and the children. It was shown that 30% or more of the information sources on well-being oriented foods were families, relatives and neighbors. More than 66% of the purchasing was done at wholesale marts and the topped purchasing frequency was from 5 to 6 per month. More than 71% of payments for well-being oriented foods were \50,000~100,000 per month. More than 51% of the respondents answered that the proper price of well-being oriented foods was 1.2 times to 1.5 times of that of other foods. Second, the satisfaction of the well-being oriented foods was ranked as 3.21 to 3.28 out of 5, and varied with the usages and the methods of weights. Investigating the satisfaction with each subordinate field, the satisfaction with price was shown to be low. The satisfaction with the assortments of foods and the satisfaction with the therapeutic degree by thorough investigation and management of foods were also relatively low. Third, well-being oriented dietary behavior was shown to be characterized by two factors, through factor analysis in this study. One was an eco-friendly oriented behavioral factor and the other was a health oriented selective factor. Fourth, the stepwise multiple regression analysis results investigating the relative influence of the factors effecting satisfaction with well-being oriented foods showed that the top ranked factor affecting total satisfaction was eco-friendly oriented behavioral factor, followed by education level and purchasing sites, especially of consumer groups.