• 한국태양에너지학회 논문집
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• 제34권4호
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• pp.23-29
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• 2014

Recently, in power system studies, Multiple Energy Carriers (MECs) such as Energy Hub has been broadly utilized in power system planners and operators. Particularly, Energy Hub performs one of the most important role as the intermediate in implementing the MECs. However, it still needs to be put under examination in both modeling and operating concerns. For instance, a probabilistic optimization model is treated by a robust global optimization technique such as multi-agent genetic algorithm (MAGA) which can support the online economic dispatch of MECs. MAGA also reduces the inevitable uncertainty caused by the integration of selected input energy carriers. However, MAGA only considers current state of the integration of selected input energy carriers in conjunctive with the condition of smart grid environments for decision making in Energy Hub. Thus, in this paper, we propose an immune algorithm based Multiple Energy Carriers System which can adopt the learning process in order to make a self decision making in Energy Hub. In particular, the proposed immune algorithm considers the previous state, the current state, and the future state of the selected input energy carriers in order to predict the next decision making of Energy Hub based on the probabilistic optimization model. The below figure shows the proposed immune algorithm based Multiple Energy Carriers System. Finally, we will compare the online economic dispatch of MECs of two algorithms such as MAGA and immune algorithm based MECs by using Real Time Digital Simulator (RTDS).

• 디지털융복합연구
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• 제12권2호
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• pp.531-537
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• 2014

본 논문은 공주대학교 공과대학 학생들에게 다학제간 캡스톤 디자인을 운영하기 위한 모델을 제시한다. 여름방학 계절학기 기간 중에 공주대학교 공과대학에서 다학제간 캡스톤 디자인을 운영하였다. 다학제간 캡스톤 디자인에 참여한 학생들은 이전에 캡스톤 디자인 교과목을 수강하지 않은 서로 연관이 없는 5개 전공 학생들이다. 다양한 전공의 학생들에게 캡스톤 디자인작품을 완성하기 위해 센서 및 액츄에이터 등을 이용하는 아두이노 우노 마이크로 컨트롤러 제어보드를 사용하는 캡스톤 디자인 모델을 도입하였다. 만족도 평가를 통해 더 창의적이면서 현장감 있는 의미 있는 교육이 진행되었음을 알게 되었다. 이를 통해 다학제간 캡스톤 디자인 부분에서 앞으로의 가능성 있는 방향을 제시하였다.

• 한국환경교육학회지:환경교육
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• 제7권1호
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• pp.30-45
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• 1994

This study was conducted to investigate the concern of the primary school teachers and the teaching situation about the environmental education through questionnaire survey on the effective environmental education. The results of questionnaire were analysed and discussed to provide the effective teaching method for the environmental education. The result of this study is as follows. 1. It was found that teachers want to teach environmental lessons as a special subject, and the content of the environmental lessons in textbook was not enough in quantity, the living waste was the most serious ploblem. Owing to the lacking in materials for the lectures on environmental education, most teachers collect the material depending on the mass communication. Also they were more interested in the environmental lessons rather than the other lessons in textbook. But because of the lacking in administrative assistance, they have difficulty in conducting the effective environmental education. 2. The teaching method of the environmental education in most primary schools was a all together-type lecture in classroom. Owing to conducting the environmental education for the knowledge than the action through the extra activity, it was difficult to expect the effect of the environmental education. Also the rate of using the reflection materials which can be improved the studying effect was very low. 3. For the effective environmental education most teachers wanted the spot learnings and the case studies and teacher education and training to get an special knowledge for environmental education. The effective evaluation method for children's environmental education is to present the results by environmental experiences and practices and to formulate a system education is organized for the effective management and activation of environmental education. 4. By practising the seasonal spot learnings, students need to change of learning method and to realize the importance of environment through own self-experiences. 5. In the future, it is desirable that researching of an environmental education is offered the effective practising teaching method which is improving the development of customs and functions, cultivation of the sense of value, ability to solve the problem, to determine the intention as well as the survey on the real situation and the consciousness about environmental education.

• 한국치위생학회지
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• 제15권3호
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• pp.531-538
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• 2015

Objectives: The purpose of this study is to investigate third and forth year dental students' perception towards dental hygienists as professionals. Methods: A self-reported questionnaire was completed by 602 dental college students in Korea after receiving the informed consent. Except incomplete answers, 217 data were analyzed. The questionnaire consisted of three questions of the general perception towards dental hygienists, four questions of the cooperation relationship to the dental hygienists, four questions of oral health education, five questions of preventive dental health care, five questions of dental treatment cooperation, and five questions of dental health care management. The data were analyzed using PASW Statistics 18.0(SPSS Inc., Chicago, IL, USA). Results: Most of the dental college students viewed the dental hygienists as professionals. However, they did not exactly know the professional job of dental hygienists within the current national medical services system and they often viewed the dental hygienists as a medical assistant. The dental college students thought that the key role of the dental hygienists is the dental assisting. Only a small fraction of the participants recognized oral health promotion, preventive cares, and hospital management as professional roles of dental hygienists. Conclusions : Dental college students' perception towards dental hygienists as professionals needs to be improved. Understanding the job description of dental hygienists clearly is a crucial part of dental students' learning process and future practice.

• 한국치위생학회지
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• 제15권5호
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• pp.907-915
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• 2015

Objective: The purpose of the study is to investigate the curriculum development and operation based on national competency standard (NCS). Methods: The duty of the dental hygienist was analyzed based on DACUM by ten experts in January, 2011. The duty model of the dental hygienist was inspected after duty analysis. The subjects of choice were preventive dentistry and practice. The satisfaction with the subjects were carried out from March to June, 2015. Results: The duty analysis of dental hygienist by DACUM produced preventive dental treatment(11 tasks), oral health education(3 tasks), comprehensive dental hygiene treatment(6 tasks) and 12 categories(156 tasks). Preventive dental treatment was divided into preventive dentistry and practice, oral health education was changed into oral health education and practice, and comprehensive dental hygiene treatment was replace by comprehensive dental hygiene and practice. The contents of preventive dentistry and practice included outline, learning objective, related knowledge and self evaluation. Professional evaluation required mutual experience and evaluation of the students. The mutual evaluation of the students was $4.61{\pm}0.506$(dental plaque control) and $1.80{\pm}0.316$(tooth brushing). The professional evaluation was $1.73{\pm}0.274$(dental plaque control) and $1.60{\pm}0.322$(tooth brushing)(p<0.01). The satisfaction with preventive dentistry and practice was $4.61{\pm}0.506$(improvement in practical work ability), $4.58{\pm}0.511$(knowledge improvement) and $4.55{\pm}0.572$(NCS educational environment) in order. Conclusions: The operation of NCS curriculum is considered to improve practical work ability and to solve skill mismatch between dental industries and educational training institutions.

• 한국비블리아학회지
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• 제27권4호
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• pp.175-204
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• 2016

본 연구는 국제성인역량조사(PIAAC)에서 측정하는 스킬을 토대로 성인의 일상적인 삶에 필수적인 기본 리터러시를 도출하고, 국내 공공도서관의 성인 리터러시 프로그램 실태를 조사한 결과를 바탕으로 기본 리터러시의 습득을 지원하는 공공도서관의 리터러시 프로그램 모델을 구안하여 계획서와 함께 예시하였다. 본 연구에서 제안한 모델은 하나의 프로그램을 통해 네 가지 기본 리터러시를 습득할 수 있는 통합된 프로그램으로 이용자의 자기주도적인 학습을 통해 이루어지는 것을 특징으로 하며 대상과 주제에 따라 자유롭게 적용할 수 있다는 장점이 있다. 모델은 대상, 주제, 실행전략, 도구, 자료, 평가의 여섯 가지 요소와 대상의 선정, 대상의 분석, 주제 선정, 실행전략 수립, 계획의 성문화, 실행, 평가하기라는 일곱 단계로 이루어져 $6{\times}7$모델로 명명하였다.

• 컴퓨터교육학회논문지
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• 제18권5호
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• pp.15-24
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• 2015

본 연구는 초등학생을 대상으로 하는 창의적 정보과학교육 이후, 학부모와 학생의 정보과학교육에 대한 가치에 영향을 미치는 변인을 분석하기 위해 다중회귀분석(multiple regression)을 실시하였다. 정보교과에서는 많은 연구들은 학생의 교과 내용에 대한 효과에 집중하고 있으며, 학부모에 대한 인식 연구는 거의 진행되지 않았다. 이에 본 연구는 학부모들이 인식하는 정보과학교육에 대한 가치에 집중하였으며, 실질적으로 학부모들이 정보교과 학습 지지에 관련 있는 정보과학교육에 대한 가치변인에 영향을 미치는 변인을 분석하였다. 따라서 학부모와 학생의 인식 차이 검증을 실시하지 않았고, 각 집단이 인식하는 가치에 영향을 미치는 변인을 다중회귀분석으로 진행하여 보다 구체적인 영향력을 산출하였다는 점에서 의의를 찾을 수 있다. 분석결과, 학부모가 인식하는 학생의 정보과학교육에 대한 가치 인식에 가장 큰 영향을 미치는 변인은 흥미 및 만족도 변인이며, 학생들은 자기효능감의 변인이 정보과학교육에 대한 가치 인식에 가장 큰 영향을 미치고 있었다.

• 한국지구과학회지
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• 제30권1호
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• pp.81-95
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• 2009

본 연구의 목적은 야외지질학습 환경에서 과학 영재학생들이 학습의 성취를 가능하게 하는 요인들을 분석하는 데 있으며, 이를 위해 2007년도 한국지구과학올림피아드 겨울학교에 참가한 19명의 참가 학생들을 대상으로 야외지질학습에 관한 인식과 태도의 유형을 분석하였다. 야외지질학습에 관한 인식과 태도의 유형을 분석한 결과 인식의 유형은 탐구적 관점에서 경험적 탐구로 이해하고 있으며, 과학철학의 관점에서 인간 중심적 견해와 실증주의적 관점, 그리고 도구주의적 관점으로 이해하고 있었다. 태도의 유형으로 학생들의 겨울학교 참여 목적은 주로 지구과학에 관한 지식 습득에 있었으며, 과학자를 희망 진로로 선택하는 경향은 부모들 보다 학생들에게서 더 높은 경향이 나타났다. 야외지질학습에 관한 학업적 자아개념은 대체로 긍정적으로 나타나며, 긍정적 정서와 부정적 정서를 모두 경험하는 것으로 나타났다.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2006년도 학술대회 2부
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• pp.633-638
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• 2006

We investigated the importance and efficiency of active and passive exploration on the recognition of objects in a variety of virtual environments (VEs). In this study, 54 participants (19 males and 35 females) were randomly allocated into one of two navigation conditions (active and passive navigation). The 3D visual display was presented through HMD and participants used joysticks to navigate VEs. The VEs consisted of exploring four rooms (library, office, lounge, and conference room), each of which had 15 objects. 'Active navigation' was performed by allowing participants to self-pace and control their own navigation within a predetermined time limitation for each room. 'Passive navigation' was conducted by forced navigation of the four rooms in random order. Total navigation duration and objects for both navigations were identical. After navigating VEs, participants were asked to recognize the objects that had been in the four rooms. Recognition for objects was measured by response time and the percentage of correct, false, hit, and miss responses. Those in the active navigation condition had a significantly higher percentage of hit responses (t (52) = 4.000 p < 0.01), and a significantly lower percentage of miss responses (t (52) = -3.763, p < 0.01) in object recognition than those in the passive condition. These results suggest that active navigation plays an important role in spatial cognition as well as providing a better explanation about the efficiency of learning in a 3D-based program.

• 한국주거학회논문집
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• 제22권4호
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• pp.133-142
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• 2011

The purpose of this study was to gather baseline data to be used for improving housing environments and developing welfare policies for low-income groups by identifying the similarities and differences in housing environmental conditions and in the usages of community welfare services between the dwellers of Da-Ka-Gu rental housing and those of permanent rental apartment. This multifaceted diagnosis currently being undertaken can be utilized through the lowincome housing planning and welfare policies as the basis for future policy formulation. Self-administered questionnaires and interviews were carried out by 212 dwellers in Da-Ka-Gu rental housing (104) and permanent rental apartments (108) in the city of Gwangju from July to October of 2010. The main findings are as follows: 1. The dwellers living in both Da-Ka-Gu rental housing and permanent rental apartments are satisfied with their housing environment. Specifically, a higher satisfaction with transportation and a lower satisfaction with neighbor's inter-relationships were evident. The dwellers of Da-Ka-Gu rental housing appear to be more satisfied with community spaces and housing management than those of the permanent rental apartments, whereas the latter appear to be less satisfied with the noise of the housing complex than the former. 2. Of the community welfare service programs, a higher usage is shown for meals service, free health screenings, home repair, and after-school learning programs among all residents in the two housing types. In particular, for the residents of Da-Ka-Gu rental housing, the children's education and parent education programs are more popular, whereas for those of the permanent rental apartments, the housekeeping services and health services utilization are highest.