• Clinical and Experimental Pediatrics
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• 제64권5호
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• pp.247-250
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• 2021

• Nuclear Engineering and Technology
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• 제44권7호
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• pp.825-830
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• 2012

Radiation and its various industrial applications have been growing at approximately 10 percent per year for the past decade in Korea. As a result, the importance of the Education and Training (E&T) in radiation protection is of upmost importance. This paper is intended to investigate the present status of the E&T on radiation protection and safety in Korea and to draw up the improvements of the E&T courses required for building the national radiation safety infrastructure. For these purposes, the E&T data from the six major domestic organizations providing radiation protection training courses were investigated and analyzed. Each of the organizations is offering several kinds of E&T courses based on their own specific functions. These organizations have administrative facilities equipped with the latest technology for E&T in radiation protection. The E&T courses mainly cover the training courses for radiation workers, radiological emergency staff, license applicants, license holders, and regulatory staff. In 2010, a total of 58 E&T courses were carried out across six organizations. The conclusions make a number of observations highlighting challenges such as: establishing a formal feedback mechanism, introducing more practical training sessions, developing training courses tailored to the job categories and target audiences, and designing education and training courses in radiation protection that comply with current obligations as well as future requirements.

• Fisheries and Aquatic Sciences
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• 제18권2호
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• pp.143-149
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• 2015

This experiment was conducted to evaluate the synergistic effects of vitamin C and E on methylmercury (MeHg) toxicity in juvenile olive flounder Paralichthys olivaceus. In a $3{\times}3$ factorial design, 9 experimental diets containing three different vitamin C (0, 200 or 400 mg/kg diet in the form of l-ascorbyl-2-monophosphate) and vitamin E (0, 100 or 200 mg/kg diet in the form of dl-${\alpha}$-tocopheryl acetate) levels with the Hg toxicity level (20 mg/kg diet in the form of MeHg) were formulated. Triplicate groups of fish averaging $2.3{\pm}0.05g(mean{\pm}SD)$ were fed one of the 9 diets in a flow through system for 8 weeks. Fish fed 400 mg vitamin C/kg diet with 100 or 200 mg vitamin E/kg diet showed significantly (P < 0.05) higher weight gain (WG) than did fish fed the other diets. Fish fed 400 mg vitamin C/kg diet at all vitamin E levels and those which fed vitamin C and E equally at a rate of 200 mg/kg diet showed significantly (P < 0.05) higher feed efficiency (FE), specific growth rate (SGR) and protein efficiency ratio (PER) than did fish fed the other diets. Fish fed 200 and 400 mg vitamin C/kg diet exhibited significantly (P < 0.05) lower Hg concentration in their muscle as well as kidney than did fish fed the other diets. Therefore, these results clearly indicated that the synergistic effects of these two vitamins on MeHg toxicity by supplementing dietary vitamin C (200 and 400 mg/kg diet) with vitamin E (100 and 200 mg/kg diet) in juvenile olive flounder.

• The Korean Journal of Physiology and Pharmacology
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• 제20권5호
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• pp.533-538
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• 2016

Angiogenesis plays an essential role in embryo development, tissue repair, inflammatory diseases, and tumor growth. In the present study, we showed that endothelial nitric oxide synthase (eNOS) regulates retinal angiogenesis. Mice that lack eNOS showed growth retardation, and retinal vessel development was significantly delayed. In addition, the number of tip cells and filopodia length were significantly reduced in mice lacking eNOS. Retinal endothelial cell proliferation was significantly blocked in mice lacking eNOS, and EMG-2-induced endothelial cell sprouting was significantly reduced in aortic vessels isolated from eNOS-deficient mice. Finally, pericyte recruitment to endothelial cells and vascular smooth muscle cell coverage to blood vessels were attenuated in mice lacking eNOS. Taken together, we suggest that the endothelial cell function and blood vessel maturation are regulated by eNOS during retinal angiogenesis.

• 한국컴퓨터정보학회논문지
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• 제15권9호
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• pp.145-153
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• 2010

인터넷과 첨단 정보통신 매체를 통해 다양한 콘텐츠를 제공함으로써 모든 사람에게 열린 교육의 장을 열어주는 사이버 교육, 즉 이러닝이 최근 들어 절실히 요구되고 있으며, 매우 빠르게 확산되고 있다. 본 논문에서는 A 대학의 사례를 중심으로 사이버 강의와 관련된 여러 가지 단점들을 최대한 극복하고, 효율적이면서 체계적인 온라인 실시간 사이버 교육을 정착시키기 위해 이러닝 센터를 구축하기 위한 효과적인 모형 설계 방안에 대해 기술한다. 본 논문에서는 먼저 이러닝 센터의 모형 설계 전에 이러닝과 관련된 여러 가지 현재 상황을 분석한다. 그런 다음, 이러닝 센터 콘텐츠의 주 사용자이자 핵심 주체가 되는 교수자와 학습자를 대상으로 한 수요조사를 통해 현 시스템에서의 문제점을 분석하고, 도출된 문제점의 개선 방안을 마련하였다. 그리고 운영조직, 콘텐츠 제작 스튜디오, 학습관리시스템 등을 기반으로 이러닝 센터의 모형을 설계하였으며, 3가지 모형 방안 중 A 대학의 현 상황에 가장 적합하다고 판단한 모형 2안을 상세 설계하였다. 본 논문에서 설계한 모형은 이러닝 센터를 새롭게 구축하고자 하는 많은 기관에서 좋은 참조모델로 활용될 수 있을 것이라 기대된다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 ITC-CSCC -1
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• pp.458-461
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• 2002

The consumer in the 21$\^$st/ century e-business era is developing a taste fur greater professionalism diversity, internationalism and large-scale integration of his or her demands. With these changes in the consumers preferences in mind, e-businesses need to develop a real time track and trace system to accommodate their logistical and consumer service operations. This research paper discusses the development of a object-oriented logistics tracking database system and a web service tracking component necessary to efficiently store and manage the movements of postal goods and provide real time information on logistics trading.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2012년도 춘계 종합학술대회 논문집
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• pp.207-208
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• 2012

본 연구의 목적은 e-포트폴리오인 K-folio의 개발 배경, 목적과 전략 그리고 애플리케이션 구성 등을 소개하고 추후 발전 방향을 제시하는 것이다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.434-437
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• 2009

To realize the advantages of e-Paper, driving systems should be separated from panels to keep its superiority in thin, light, and flexible. For this purpose, this paper develops a panel hot-plugging driving system for R2R cholesteric LCD. Its performance is verified by implementing an e-Badge application. Satisfactory results are obtained.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.1544-1545
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• 2006

• 대한생식의학회:학술대회논문집
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• 대한불임학회 2002년도 제42차 춘계학술대회
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• pp.82-83
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• 2002