• Applied Microscopy
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• 제47권4호
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• pp.215-217
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• 2017

Dr. Jacques Dubochet, Dr. Joachim Frank, and Dr. Richard Henderson received the 2017 Nobel Prize for Chemistry for their efforts to develop effective ways to obtain high-resolution three-dimensional images of biomolecules using cryo-electron microscopy. Congratulations to the Nobel Prize in the field of electron microscopy, I will explain the scientific contributions of the three winners and introduce the role of cryo-electron microscopy (including cryo technology) in biology.

• Journal of Korea Trade
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• 제23권5호
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• pp.118-128
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• 2019

Purpose - This paper examines the international R&D contest in which the extent of intellectual property right (IPR) affects both the size of prize for the winning firm and the extent of positive spillover through cost of firms. Recognizing the possibility of incomplete protection of IPR, the present paper analyzes the effect of changes in the extent of IPR on payoffs to firms and social welfare. Design/methodology - This paper examines coordination of IPRs by countries in economic integration. The paper then develops a general model of international R&D contest with incomplete protection of IPR. An increase in the extent of IPR augments the share of the prize the winning firm can appropriate, while decreasing the positive cost externality. To derive sharper results, the paper considers the cases of linear and fixed spillovers. Findings - Under plausible assumptions, an increase in the IPR augments the payoff to each firm and the aggregate payoffs as well. The paper also shows that the number of firms participating in the R&D contest can be endogenously determined in the two-stage R&D contest. The higher the extent of cost spillover, and the larger the effective prize, the more firms participate in the international R&D contest. Originality/value - Existing studies assume that firms winning the R&D contest enjoy perfect IPR to the output of their R&D activities. This is a very restrictive assumption in that other firms can copy the new products or processes. By allowing for the incompleteness of the IPR, the present paper develops a more realistic model of R&D contest. The novelty of the present paper is to allow for the possibility that the higher extent of IPR increases the prize and decreases positive cost externality at the same time. The findings of the present paper can serve as a basis for government policy toward R&D activities of firms and protection of IPRs.

• 대한지역사회영양학회지
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• 제5권1호
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• pp.92-99
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• 2000

A large amount of food waste in known to bring about many problems including environmental pollution. This study was carried out to investigate effective methods for reducing leftovers in the food service business & industry. The reasons for producing leftovers in food service restaurants, customers perferences of foods, cooking methods the degree of saltiness, and serving size were surveyed using questionnaire and the menu was improved based on the customers perferences. Excessively large serving sizes and the unfavorable cooking methods is food service were the main reason for the leftovers of side dish and one=dish foods. Because the largest amount of leftover came from soups & stews, an effective way of reducing leftovers in food service would be to reduce the serving size of soups & stews. Total leftovers was reduced to about 60% after improving menu (p<0.01) and the each leftover or rice, soup&stew, and side dishes was also reduced significantly after improving the menu(p<0.001) The environmental campaign to reduced food waste by bulletin intra-net using personal computers slogans& posters, and new letters was conducted for one week each and then leftovers were measured 9 times for following three weeks regularly. The total amount of leftovers decreased slightly due to the environmental campaign, but the difference was not significant . When we adopted penalty or prize system leftovers were decreased by about 35%(p<0.001) and the penalty system was more effective than the prize system in reducing leftover (p<0.001) When we compared the leftovers under the three services, a tray service was more effective in reducing leftover than complete self-service of partial self-service(p<0.001).

• 실천공학교육논문지
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• 제10권1호
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• pp.9-15
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• 2018

음성 인식 기반 API를 이용하여 디지털 사이니지(Digital Signage)를 구성하고, 상용화된 다른 제품들과 차별되도록 사용자의 음성 명령으로 날씨, 지도, 운동 정보, 일정, 영상 등의 정보를 얻는 VRSM(Voice Recognition Smart Mirror)을 제안하여, 독자적인 졸업인증제의 결과물로 평가받는 과정을 통해, 공학교육의 효과적인 실천 방안을 제시한다. 전공에서 2인 1조로 3학기동안 진행되는 작품 설계 및 제작 기회를 경험하였다. 종합설계를 통해 공학적 접근 방법과 창의적 사고 기회를 경험하였으며, 그 중간 결과에 대해 본 학회의 학술대회에 참가하여 우수 학술상을 수상하였고, 기타 학회의 논문 경진대회에서도 입상의 결과를 얻었다. 이 과정을 통해 얻어진 실무 능력의 향상이 자신감과 취업 기회 획득에 유리함을 실제 취업들을 통해 입증하였다.

• 전력전자학회논문지
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• 제4권5호
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• pp.413-422
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• 1999

Auto-connected multipulse(12/24pulse) rectifier schemes are cost effective methods for reducing line current hamonics in PWM drive systems. Employing these schemes to enhance utility power quality requires careful attention to several design considerations In particular, excursion of dc-link voltage at no load, effect of pre-existing voltage distortion, impedance mismatches, unequal diode drops on rectifier current sharing and performance, are fully analyzed, Several corrective measures to improve the performance of 12/24­pulse rectifier systems are also discussed. Finally, experimental results on a 460V, 60Hz 400kVA commercial ASD, retrofitted with 12/24pulse rectifier systems are discussed in detail.

• 수산해양교육연구
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• 제21권4호
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• pp.499-507
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• 2009

The purpose of this study was to improve teachers' instruction and to identify the characteristics of interaction between teachers and children. Field excellent class instructions, which were known as the best lectures from the competition of an instruction contest in Busan, were video recorded and openly released on the internet. A teacher who won a prize for his excellent teaching at the contest demonstrated a Korean subject class on sixth grade elementary school curriculum. His instruction was analyzed by two coders based on the frame of Flanders' language interaction system. Inter-coder reliability was .967 from Scott's coefficient. From the results of the Flanders index, the major and minor instruction sequences were 4-8-2-5 and 6-0-5-4, and the teacher tended to interact with students by accepting feeling and ideas. These results could provide effective cues and information on how to to improve instruction.

• 한국영재학회:학술대회논문집
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• 한국영재학회 2001년도 춘계 학술세미나
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• pp.43-72
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• 2001

Identification and discrimination the mathematical giftedness must be based on it's definition and factors. So, there must be considered not only IQ or high ability in mathematical problem solving, but also mathematical creativity and mathematical task commitment. Furthermore, we must relate our ideas with the programs to develop each student's hidden potential not to settle only. This study is focused on the discrimination of the recipients who would like to enter the elementary school level mathematical gifted education program. To fulfill this purpose, I considered the criteria, principles, methods, tools and their application. In this study, I considered three kinds of testing tools. The first was KEDI - WISC personal IQ test, the second is mathematical problem solving ability written test(1st type), and the third was mathematical creativity test(2nd type) which were giving out divergent products. The number of the participant of these tests were 95(5-6 grade). According to the test, students who had ever a prize in the level of national mathematical contest got more statistically significant higher scores on 1st and 2nd type than who had ever not, but they were not prominent on the phases of attitude, creative ability or interest and willing to study from the information of the behavior characteristics test. Using creativity test together with the behavior characteristics test will be more effective and lessen the possibility of exclusion the superior.

• 한국융합학회논문지
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• 제8권8호
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• pp.239-246
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• 2017

표준은 다양한 기회를 제공하며 내부적으로 사업 목표를 달성할 수 있는 효율적이며 효과적인 수단을 제공할 뿐 아니라 외부적으로 경쟁력을 강화시켜 주기도 한다. 그러나 중소중견기업은 자원과 인식의 부족으로 표준경영이 제공하는 혜택을 충분히 누리지 못하고 있다. 본 연구의 목표는 국내 중소중견기업의 사례연구를 통해 기업 조직 구조의 차원에서 표준경영의 역할을 조사하고 이를 통해 표준경영에 대한 인식을 높이고 전략적 활용을 위한 지침을 제공하고자 하는 것이다. 세계표준의 날 행사에서 수상을 한 중소중견기업 4개를 대상으로 자료 및 심층 인터뷰를 통해 해당 기업의 표준경영 활용 사례를 조사하였다. 결과에 따르면 표준은 기업의 경영목표 달성을 위해 전략적으로 활용될 수 있으며 특히 국제무대에서의 인지도 제고를 위한 유용한 수단으로 활용될 수 있음을 확인하였다. 글로벌 경영환경에서 표준경영이 경쟁력 확보를 위한 전략적 수단으로 활용될 수 있다는 인식 제고와 지침을 마련한 실무적 가치가 있는 연구이다.

• 한국콘텐츠학회논문지
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• 제17권10호
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• pp.624-635
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• 2017

공익포스터는 설득 커뮤니케이션을 목적으로 효과적인 메시지를 전달하기 위해 여러 가지 방법을 사용하고 있는데, 그 방법 중 하나로 감성의 표현수단인 공감각적 표현을 통해 보다 적극적인 설득 커뮤니케이션을 하고 있다. 본 연구는 한국방송광고공사 주최 공익 포스터 수상작을 중심으로, 작품 사례분석을 통하여 공익 포스터의 목적인 설득을 위한 커뮤니케이션 수단으로 공감각이 어떻게 적용되었는지 알아보았다. 그 결과에 따르면 첫째, 공감각적 표현이 공익포스터의 효과적인 정보 전달을 극대화 시키는 데에 긍정적인 효과를 나타내고 있다. 둘째, 공익포스터에서 공감각 요소의 비중은 시각, 촉각, 청각, 후각, 미각의 순서로 나타났다. 셋째, 자연 환경 주제인 공익포스터에서 공감각을 효과적으로 표현하기 위하여 시각화된 촉각을 가장 많이 사용하였고, 사회공동체 주제인 공익포스터에서는 시각화된 청각이 가장 많이 사용되었다. 넷째, 공익포스터에서 세 가지 이상의 감각을 활용시킬 때는 가장 강력한 감각자극에 의해 공감각이 효과적으로 전달되었다. 따라서 본 연구의 결과는 향후 이러한 공감각적 표현요소가 주제에 따른 공익포스터에 많이 활용되어 대중에게 효과적인 메시지를 전달시킬 수 있는 학술적 근거가 되기를 기대한다.

• 한국운동역학회지
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• 제26권3호
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• pp.285-292
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• 2016

Objective: This study collected data on muscle fatigue and ground reaction force during walking to provide a basis for development of custom-fitted outdoor walking shoes. The study analyzed an upright body exercise program using spine stabilization technique to determine the effect on foot plantar pressure in archers, demonstrate the effectiveness of upright body exercise, and develop a new, effective, and efficient training program. Method: A 12-week upright body exercise program was evaluated for the effect on plantar pressure in archers. Ten prize-winning archers (3 men, 7 women) in B metropolitan city, each with ${\geq}10years$ of experience, were given an explanation of the content and purpose of the program, and provided informed consent. Upright body exercise was performed 3 times a week for 12 weeks. A resistive pressure sensor was used to measure foot plantar pressure distribution and analyze quantitative information on variation in postural stability and weight shifting in dynamic balance during shooting, as well as plantar pressure in static balance with the eyes open and closed. Results: There were no significant differences in foot plantar pressure before and after participation in the exercise program. There was no statistically significant difference in foot plantar pressure in static balance with the eyes open or closed, or in foot plantar pressure in dynamic balance during shooting. Conclusion: An upright body exercise program had positive effects on foot plantar pressure in static and dynamic balance in archers by reducing body sway and physical imbalance during shooting and with eyes closed. This program is expected to help archers improve their posture and psychological state, and thereby improve performance.