• 공학교육연구
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• 제23권5호
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• pp.16-25
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• 2020

This article aims to analyze the experience of designing and operating a class model linking undergraduate and graduate students in engineering education and suggest its development direction. To achieve these objectives, the undergraduate-graduate linked class model was applied to community problem-solving education and a case was analyzed. It also specifically presented the process of how we design the class model and what the actual operational performances and improvements are. This study found that undergraduate and graduate students could build integrated and horizontal cooperative relationships in their classes through undergraduate-graduate linked education and, particularly, graduate students could gain meaningful educational experiences. However, it was difficult to obtain tangible performances through the team activities of these students within a semester. In order for engineering colleges to operate undergraduate-graduate linked education, it would be necessary to provide a longer and more systematic educational environment and better curriculum. The study tried to seek specific tasks and ways to improve them.

• Nuclear Engineering and Technology
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• 제45권3호
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• pp.277-294
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• 2013

In the early 1980s, attention focused on the possibility that pressurized thermal shock (PTS) events could challenge the integrity of a nuclear reactor pressure vessel (RPV) because operational experience suggested that overcooling events, while not common, did occur, and because the results of in-reactor materials surveillance programs showed that RPV steels and welds, particularly those having high copper content, experience a loss of toughness with time due to neutron irradiation embrittlement. These recognitions motivated analysis of PTS and the development of toughness limits for safe operation. It is now widely recognized that state of knowledge and data limitations from this time necessitated conservative treatment of several key parameters and models used in the probabilistic calculations that provided the technical of the PTS Rule, 10 CFR 50.61. To remove the unnecessary burden imposed by these conservatisms, and to improve the NRC's efficiency in processing exemption and license exemption requests, the NRC undertook the PTS re-evaluation project. This paper provides a synopsis of the results of that project, and the resulting Alternate PTS rule, 10 CFR 50.61a.

• ETRI Journal
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• 제38권5호
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• pp.885-895
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• 2016

The lowest power mode (passive-standby mode) was proposed for reducing the power consumption of set-top boxes in a standby state when not receiving content. However, low-power set-top boxes equipped with the lowest power mode have been rarely commercialized because of their low-quality user experience. In the lowest power mode, they deactivates almost all of operational modules and processes, and thus require dozens of seconds for activation latency (that is, the latency for activating all modules of the set-top boxes in a standby state). They are not even updated in a standby state because they deactivate their network interfaces in a standby state. This paper proposes an adaptive standby mode scheduling method for improving the user experience of such boxes. Set-top boxes using the proposed method can analyze the activation pattern and find the frequently used time period (that is, when the set-top boxes are frequently activated). They prepare for their activation during this frequently used time period, thereby reducing the activation latency and enabling their update in a standby state.

• 임상간호연구
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• 제19권2호
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• pp.169-180
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• 2013

Purpose: This study was performed to investigate nurses' experience of bullying in clinical fields. Methods: Participants were 309 nurses working in general hospitals. Data were collected using self- report questionnaires which were evaluated in terms of workplace bullying, burnout, organizational commitment, turnover intention and nursing productivity. Results: Of the participants 17.2% reported being victims of workplace bullying of nurses in general hospital, based on the operational definition of bullying. Coping response to workplace bullying was mainly passive such as enduring, ignoring, and evading. Experience of workplace bullying was positively correlated with burnout and turnover intention and negatively correlated with organizational commitment and productivity. Conclusion: The findings suggest that there is a need for assessment of the reality of workplace bullying of nurses in clinical areas as well carefully reviewing the problem and impact. A supportive system, education programs and improved workplace climate are recommended to reduce workplace bullying in clinical fields.

• 한국수학교육학회지시리즈A:수학교육
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• 제34권1호
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• pp.17-63
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• 1995

The exploration of Mathematics-learningmodel on the basis of Cognitive development The purpose of this paper is to sequenctialize Mathematics-learning contents, and to explore teaching-learning model for mathematics, with on the basis of the theory of cognitive development and the period of condservation formation for children. The Specific topics are as follows: (1) Systemizing those theories of cognitive development which are related to Mathematics - learning for children. (2) Organizing a sequence of Mathematics - learning, on the basis of experimental research for the period of conservation formation for children. (3) Comparing the effects of 4 types of teaching - learning model, on the basis of inference activity and operational learning principle. $\circled1$ Induction-operation(IO) $\circled2$ Induction-explanation(IE) $\circled3$ Deduction-operation(DO) $\circled4$ Deduction-explanation(DE) The results of the subjects are as follows: (1) Cognitive development theory and Mathe-matics education. $\circled1$ Congnitive development can be achieved by constant space and Mathematics know-ledge is obtained by the interaction of experience and reason. $\circled2$ The stages of congnitive development for children form a hierarchical system, its function has a continuity and acts orderly. Therefore we need to apply cognitive development for children to teach mathematics systematically and orderly. (2) Sequence of mathematical concepts. $\circled1$ The learning effect of mathematical concepts occurs when this coincides with the period of conservation formation for children. $\circled2$ Mathematics Curriculum of Elementary Schools in Korea matches with the experimental research about the period of Piaget's conservation formation. (3) Exploration of a teaching-learning model for mathematics. $\circled1$ Mathematics learning is to be centered on learning by experience such as observation, operation, experiment and actual measurement. $\circled2$ Mathematical learning has better results in from inductional inference rather than deductional inference, and from operational inference rather than explanatory inference.

• Journal of Biosystems Engineering
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• 제12권2호
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• pp.28-37
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• 1987

Operation of rice whiteners has been depending on operator's experience only and very limitted data are available for operational criteria of rice whiteners in Korea. With developments of new rice varieties and with a tendency of automation of machine operations for precision control, operational criteria depending on physical characteristics of rice grains arc required for an improvement of milled rice recovery and the performance of rice whitening systems. An experimental study was conducted to identify operational criteria of a rice whitening system consisted with an abrasive-aerated whitener developed newly and a frictional-aerated whitener being used commercially. Further, comparisons were made between the performance of the rice whitening system adopted for this study and a commercial system used in small scale milling plants. Results of this study are summarized as follows: 1. Total number of passes necessary for the final white rice in the combined whitening system depended exclusively on the counter pressure level of the frictional whitener successive to the abrasive whitener. 2. The counter pressure required for whitening Japonica type rice variety (Akibare) was higher by about 1.6 times than that for Japonica type (Pung-san), when other conditions were kept at the same. 3. Radial pressure in the whitening chamber of the frictional whitener should be maintained between 1.5 to $2.1kg/cm^2$ for the completion of whitening within 5 to 3 passes regardless of rice varieties. Hence, it was found that the radial pressure in the whitening chamber could be used as an operational criteria to control the counter pressure level. 4. The following regression equation was found between radial pressure($R_p$) in whitening chamber and electric power consumption of the whitening system: $$EPC=-0.545\;R^2_p+1.277\;R_p+0.874[KWH/100kg]$$ 5. The following multiple regression equation was found among radial pressure ($R_p$), counter pressure ($C_p$), and bioyield point ($B_i$), length (L) and width (W) of brown rice. $$R_p/(B_i/W^2)=0.547\{C_p/(B_i/W^2)\}^{0.365}(L/W)^{0.120}(R^2=0.9897)$$ 6. The milled rice recovery and machine efficiency (kg/KWH) from the combined whitening system were higher by about 2.0% point and by 15 to 27% point than those from the conventional system, respectively.

• 문화기술의 융합
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• 제9권5호
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• pp.801-807
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• 2023

본 연구는 국내 중학교 학생을 중심으로 진행한 해외 체험 프로그램 사례를 조사하여 향후 해외 체험 프로그램 운영에 대한 시사점을 도출하는 데 목적이 있다. 이를 위하여 검색 엔진을 통하여 키워드 중심으로 자료를 체계적으로 수집 및 비교·분석한 후 SPSS 23을 활용하여 빈도 분석, 독립표본 t 검정과 교차 분석을 실시하였다. 연구 결과 첫째, 지역의 작은 학교 중심으로 해외 체험 프로그램을 운영하고 있었으며, 특히 전라남북도에서 활발하게 운영하고 있었다. 또한 교육청, 지자체 등 다양한 공적 자금이 투입되어 전액 부담 등 다양한 방법으로 우리나라와 가까운 동남아시아 국가 중심으로 실시되고 있었다. 둘째, 중학교 해외 체험 프로그램의 목적은 크게 진로 체험, 문화 체험, 관광, 자매 학교 방문으로 나타났다. 해외 체험 프로그램은 학생들에게 글로벌 역량과 세계 시민성을 함양하고, 진로 탐색의 기회를 제공하는 중요한 활동이다. 본 연구는 이러한 해외 체험 프로그램 운영을 위한 기초 연구로서 역할을 하며, 향후 공교육에서의 해외 체험 활동이 적극적으로 추진되기를 기대한다.

• 패션비즈니스
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• 제28권1호
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• pp.98-112
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• 2024

The purpose of this study was to provide basic information on the development of local governments and upcycling industries that want to establish centers in the future. The study investigated the current situation and programs of domestic upcycling centers for regional sustainable growth. As a result of comparing and analyzing the programs operated by the upcycling centers by region, they could be classified into culture and arts experience programs, resource circulation experience programs, and environmental culture education programs according to the nature of the operation programs that are more focused on in addition to the experience and education programs reflected by each center. Among the upcycling materials and items used in the operation program, fashion-related education was being operated in a more diverse manner in the area of culture and arts experience programs. As a result of the analysis, it was found that it was necessary to establish a smooth material supply network, develop an in-depth step-by-step upcycling fashion education program, and strengthen the upcycling center program using regional characteristics. The results of this study are significant in that they provide the local governments with basic information for the establishment of upcycling centers in areas where the upcycling centers have not been established. In addition, this study presents the types and directions of programs necessary for establishing upcycling centers in the future.

• 한국융합학회논문지
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• 제5권4호
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• pp.15-20
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• 2014

본 논문은 공주대학교에서 실시된 창의적 캡스톤 디자인 교육에 대해 알아보고 새로운 방법을 개발한다. 결과물은 수행 프로젝트의 진행 방법과 과정과 과정을 기반으로 자체평가와 수행평가로 평가하였다. 구성된 팀들은 각 전공 분야의 지식을 갖고 있는 2~3명 이내로 하였다. 프로젝트에 참여한 모든 팀은 자체 평가 기준을 만족시켰으며 전반적인 만족도는 항목별로 5점 만점에 3.88~4.44로 긍정적으로 평가되었다. 기존의 비 산업체 참여와는 다르게 캡스톤 디자인 및 개발 진행에 산업체의 참여가 있었다. 향후에는 캡스톤 디자인 프로젝트를 진행하면서 디자인, 제작 및 시제품 테스트 등에 기업체 지원을 받아 진행하여야 한다.

• 한국문헌정보학회지
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• 제47권2호
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• pp.293-314
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• 2013

본 연구에서는 전문성 부족으로 운영에 어려움을 겪고 있는 작은도서관의 해결방안을 제시함으로써 효율적인 도서관 운영을 지원하고자 하였다. 이 목적을 이루기 위하여 전국 작은도서관 중 등급별, 유형별, 이용대상별 22개관의 작은도서관을 선정하였으며 직접 작은도서관을 방문하여 운영실태를 조사하고 도서관 운영담당자와 면담을 실시하였다. 연구결과, 작은도서관 활성화방안으로 사서자격증 소지자 인센티브 부여, 도서관리 프로그램 무상 보급 및 교육, 지자체의 정기적인 도서 지원 정책, 운영 평가를 위한 차등 지원, 이용자서비스 가이드라인 설정, 공공도서관과의 협력 등을 제시하였다.