• 대한의용생체공학회:의공학회지
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• 제38권4호
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• pp.205-210
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• 2017

The convergence healthcare industry in Korea has been stalled due to conflicts between stakeholders as well as a supplier-centered industry structure. This situation is caused by the structural contradiction in which the Korean industry has a prolonged conflict structure among stakeholders due to a strong regulation and an institutional inertia from the viewpoint of the sociotechnical system. Therefore, it is necessary to identify new system management plan that enhances social acceptability such as laws, customs and ideas while reducing conflicts between stakeholders. In this study, mainly adapting the stakeholder-oriented autopoiesis and focusing on publicness of healthcare, we propose the rationale and direction for policy making to harmonize various systems within the convergence healthcare industry.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2007년도 춘계종합학술대회
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• pp.657-660
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• 2007

정보화의 진전에 따라 교육은 동일한 지식의 일방적 전달인 전통적인 교육에서 시 공간을 초월하여 학습자-내용간, 학습자-교수자간, 학습자-학습자간 다차원적으로 학습자 스스로가 자기 주도적으로 학습을 하는 양방향 교육 및 수요자 중심의 평생교육으로 전환되고 있다. 이러한 시대적 조류에 맞추어 학습자의 요구에 부응하는 교육방법론이 필요하다. 따라서 본 논문에서는 학습자 주도의 상호 작용을 극대화할 수 있는 학습자 중심의 WBI를 활용한 실시간 원격교육 시스템을 제안한다. 학습자가 스스로 학습을 설계하고 계획하여 다양한 상호작용을 통하여 자기주도적으로 학습에 참여할 수 있는 개별학습과 학습자들의 건전한 토론과 대화의 장을 마련하여 모둠원들 간의 집단별 프로젝트 학습을 할 수 있도록 하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제10권2호
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• pp.103-128
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• 2001

At present, the EDI systems are indispensable software in port logistics industry. Currently, a monopolistic VAN/EDI service provider operates the EDI services. The current EDI client software has the 2-tier fat client/server architecture. However, the current EDI software is lack of Web interface and causes lots of cost for maintenance. Therefore, a variety of implementation architecture has been being tried by using script, XML and distributed object-oriented technology. Web/EDI and XML/EDI are the new EDI systems, However, the EDI systems have some limitations such as speed. This study intends to compare the variety implementation architecture for the EDI systems in the users' perspective and explore the strong and weak points of each architecture. We compared the EDI systems based on our experience of more than 2-years of implementation project for the EDI systems of port logistics. We categorized the EDI systems as client application EDI, Web EDI using script, XML/EDI, and 3-tier distributed object-oriented EDI system. We compared them with criteria such as speed, program maintenance, easiness of implementation and usage, security, and load balancing and fail-over. Finally we discuss the direction of optimal EDI system architecture for the future.

• 한국환경교육학회지:환경교육
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• 제16권2호
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• pp.1-14
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• 2003

This study aims to review the present condition of human resources development in environment technology area and to explore the direction of human resources development plans, based on the results of a survey targeting experts in this area. Related papers & literatures are referred and a survey for experts' opinions are carried out. The survey was oriented to the importance and effectiveness of policies designed by Korea Ministry of environment. The main findings of this study are as follows; firstly, an emphasis should be put on generating professionals in charge of creating domestic demand for environmental purposes for promotion to make excellent environmental techniques being of practical use and help them go into businesses was turned out crucial; secondly, it is advised to upgrade the level of qualifications of environmental technicians by reforming into a graduate schoolcentered educational system on a human resource-rearing phase; thirdly, retraining should be provided by law to ensure the enhancement of re-educating the existing environmental technicians; fourth, efforts should be made to promptly develope new techniques and unify declining traditional items, deterring national technical qualification system oriented toward cultivating superintendents in the environment field.

• 공학교육연구
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• 제23권4호
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• pp.3-13
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• 2020

The purpose of this study is to analyze the differences in the perception and education requirements between industry and engineering students on engineering convergence competency, and to suggest implications for fostering engineers suitable to industry demand and direction of focus improvement in the current engineering education field. To this end, 73 industrial representatives and 104 engineering students are surveyed the engineering convergence competency and educational needs. The results of this analysis are as follows: first, the difference in engineering convergence competency by background variable was significantly different in gender of engineering students. Second, it is found that there is a significant difference between the current level and the required level of engineering convergence competency from an industry perspective. In the IPA results, it shows that new knowledge generation and future-oriented vision skills are urgently needed to be improved. And it is showed that the creative thinking, knowledge utilization, communication, and cooperation capabilities skills need to be maintained continuously. Third, as a result of the analysis of the differences in recognition of the current competency levels between industry and engineering students, there is statistically significant differences in systemic thinking, communication and cooperation, understanding of other academic fields, humanities, and future-oriented perspectives. Therefore, it is necessary to specific plans and efforts to reduce this perception gap should be prepared at the university.

• 한국결정성장학회지
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• 제1권2호
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• pp.94-103
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• 1991

ZnO함량이 45~60mol%인 ZnO-$P_2O_5$계 유리를 $1200^{\circ}C$에서 용융한 후 열처리하여 결정화시켰다. 기초유리와 결정화시킨 시료의 기계적 성질, 전기적 성질 등을 X선 회절, FTIR, 밀도, 열팽창, 전기전도도, 미세경도 등을 측정하여 검토하였다. X선 회절분석 결과 ZnO의 함량이 45~55mol%인 결정화 유리에서는 주결정상이 메타인산아연[$Zn(PO_3)_2$]이었으며ZnO가 60mol%인 시료는 피로인산아연($Zn_2P_2O_7$)으로 나타났다. 열팽창계수와 직류전기전도도는 ZnO가 50~60mol%인 시료에서 결정상 방향에 따라 각기 다른 값을 나타났으며 이는 배향성 결정상이 존재함을 시사한다.

• 한국세라믹학회지
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• 제25권3호
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• pp.268-276
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• 1988

KCI을 사용한 용융염합성법에 의해 침상형$(Pb_{1-x}Ba_x)_{1-y}La_{2y/3}Nb_2O_6$ (PBLN)분말을 합성하고 합성분말의 형상에 미치는 Ba 및 La 치환의 영향을 조사하였다. 또 이 침상형 분말을 사용하여 doctor-blade법 및 hot-press 법에 의해 입자배향 세라믹스를 제작하고 유전적, 압전적, 광학적 성질을 조사하였다. 얻어진 PBLN 분말의 형상 및 입자배향 PBLN 세라믹스의 전기적 특성은 분말합성시의 열처리조건과 Ba 및 La 치환량에 따라 현저히 달랐다. 특히 PBLN 세라믹스의 유전율 및 전기기계결합계수는 입자배향 세라믹스 제작시의 가압방향에 따라 뚜렷한 이방성을 나타내었다.

• 한국세라믹학회지
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• 제51권3호
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• pp.218-223
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• 2014

The domain structures, dielectric properties, and phase transformation of (001)-oriented $Pb(Mg_{1/3}Nb_{2/3})O_3-x%PbTiO_3$ (PMN-x%PT) crystals for x=20, 30, 35, and 40 mole% have been investigated. PMN-20%PT consists of polar nano-domains (PND) which do not self-assemble into macro-domain plates. PMN-30%PT consists of PNDs which begin to self-assemble into colonies along preferred {110} planes. PMN-35PT consists of miniature polar domains on the nm scale. PMN-40%PT consists of {001} oriented lamella domains on the mm scale that have internal nano-scale heterogeneities. The dielectric properties of poled (001) PMN-x%PT single crystals have been measured for orientations both parallel and perpendicular to the [001] poling direction. The results of the temperature dependence of the dielectric constant and mesh scans for the 30%PT sample demonstrate that the initial monoclinic phase changes to single domain tetragonal phase and to cubic phase with increasing temperature.

• Asian Journal for Public Opinion Research
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• 제6권1호
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• pp.1-17
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• 2018

As societal interest in inequality increases in Korea, both public and academic discussion on inequality is also on the rise. In order to more effectively discuss the problems of rising inequality, however, it is essential to study the consequences and implications of inequality. This study examines one of the consequences of inequality, particularly on individuals - the relationship between an individual's perception of inequality and his/her evaluation of societal health, such as social trust and social mobility. According to a statistical analysis of the Korean Academic Multimode Open Survey for Social Sciences (KAMOS), those who perceive the level of income and wealth inequality in Korea as more unequal tend to have a lower level of trust toward Korean society and Korean people, as well as a lower expectation for both intra- and intergenerational social mobility. This study, which shows that rising inequality could have a negative impact at the individual level, not only extends the scope of the consequence-of-inequality studies from the society-oriented toward the individual-oriented, but it also has significant implications for the field, suggesting a new direction for future studies.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2002년도 전력전자학술대회 논문집
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• pp.723-726
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• 2002

In this paper, a high efficiency leakage transformer for neon tube is developed to improve its power factor, to reduce its core loss and weight by using a technique of shape optimization and direction of grain-oriented silicon steel sheet. A protection circuit is designed for all types of neon transformer loaded with one or more neon lamps. Whenever the neon tube fails to be started up or comes to the life end, or encounters faults with open-circuits at the output terminals of the neon transformer, the protection circuit will be initiated to avoid more critical hazards. These neon transformers need a protection circuit to prevent from current stresses on circuit components by neon tube fail. The input of the transformer is automatically cut off when the abnormal condition occurs, preventing waste of no-load power. As the results of the study, the core weight is reduced by $11\%$, the power factor improved by $5\%$ and the efficiency increased by $6\%$ compared with the conventional type due to the employment of the grain-oriented steel sl)eel and the optimized core shape.