• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.12 no.2
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• pp.31-40
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• 2017

This study validate effectiveness of Online Entrepreneurship Education based on PBL(Problem-based Learning) and flipped learning. This study reveals online education of entrepreneurship based on PBL and flipped learning method has positive effect on personal entrepreneurship, will to be an entrepreneur, and problem-solving skills. First, the results show that entrepreneurship education based on PBL and flipped learning can improve entrepreneurship more than a previous learning method. Second, PBL and flipped learning based online education affects will to be an entrepreneur in positive way. Experimental group who experienced problem solving activity and flipped learning has more will to be entrepreneur than control group who takes previous learning method. Lastly, PBL and flipped learning method based entrepreneurship education also has positive effect on personal problem-solving techniques. This results show that online entrepreneurship education based on PBL and flipped learning has positive impacts on entrepreneurship, will to be an entrepreneur, and improving problem-solving skills significantly.

• The Korean Journal of Malacology
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• v.31 no.1
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• pp.9-19
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• 2015

Germ cell development and cyclic changes in the epithelial cells of the seminal vesicle of the male rapa whelk, Rapana venosa, were investigated by cytological and histological observations. The process of germ cell development can be classified into five stages: (1) spermatogonial, (2) primary spermatocyte, (3) secodary spermatocyte, (4) spermatid, and (5) spermatozoon. In particular, four atypical cells (Type IA, IB, IIA and IIB cells) occur among normal germ cells in the acini during spermatogenesis. Presumably, the atypical cells, which have lysosome-like vacuoles or lysosome-like bodies in the cells, are involved in breakdown and absorption themselves in the acini. However, atypical cells were not found in the epithelial cells of the inner layer of the seminal vesicle. A considerable amount of spermatozoa are transported from the testis towards the the seminal vesicles until late July. The main coupulation period is between June and July. The process of the cyclical changes of the seminal vesicles can be classified into three phases: (1) resting, (2) accumulating, and (3) spent. Yellow granular bodies are involved in resorption or digestion of residual spermatozoa.

• Communications of Mathematical Education
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• v.20 no.2 s.26
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• pp.147-177
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• 2006

The 7th curriculum sets a basic direction based on learner centered teaching, with the aim of allowing students to develop their mathematical ability. Teachers' manuals are provided to help teachers fallow the basic direction and achieve the curriculum aims, but in practice they are not always helpful. Therefore, we reconstructed parts of a teachers' manual. This involved analyzing the contents of units 6, 7 and 8 of the elementary mathematics textbook 4 na to identify and outline the problems; introducing more detailed teaching methods and activities; and developing teaching learning materials. We tested the new version in several real classes and analysed the responses 6f teachers and students to examine the possibility of its practical use. The results suggest that the reconstructed version of the teachers' manual for units 6, 7 and 8 of textbook 4 na is of greater practical utility.

• 한우개량
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• no.7 s.22
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• pp.8-14
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• 2000

쇠고기 등급판정은 육량등급 A, B, C의 3단계와 육질등급 1+, 1, 2, 3의 4등급으로 매겨진다. 육질등급은 근내지방도에 의하여 대부분 결정되나 육색, 육의 조직감 및 지방색이 결정적인 영향을 주기도 한다. 그러나 여기에는 주로 육색에 관하여 다뤄보기로 한다. 육색은 육색기준을 7단계로 분류하여 놓고 있는데 3-5의 범위가 바람직하다. 하지만 육색이 나쁜 것은 다른 항목이 아무리 우수하다 하여도 육색에 의해 육질판정의 불이익을 받기 때문에 그냥 넘어갈 문제가 아니다. 따라서 여기에서는 등급판정에 불리한 암적 색육을 방지하고 육색을 좋게하는 각종 실험방법을 소개하여 보기로 한다.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1995.10a
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• pp.7-11
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• 1995

우리나라 농업경영구조의 변천과정을 살펴보면 '60년대 이전은 식량작물 위주의 자급자족 경영단계였고, '70년대 후반 특히, '80년대 이후는 경제작물을 중심으로 상업농 경영이 본격화되는 단계였다. 이 같은 변천은 경제발전과 더불어 국민소득수준이 향상되면서 식량작물의 소비는 크게 감소한데 반해 원예작물의 소비가 급증하게된 것에서 기인한 것이다. '94년말 현재 전국의 원예시설 면적은 '80년에 비해 7배정도 늘어나 약 4만2천ha에 달하고 있으며 품목별로는 채소시설이 약 38,000ha로서의 전체의 90%정도를 차지하고 있다. (중략)

• Photonics industry news
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• s.34
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• pp.8-11
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• 2006

한국광산업진흥회 제7회 정기총회에서 이기태 삼성전자(주) 정보통신총괄사장이 제3대 회장으로 연임되었다. 이회장은 2003년 3월 이후 3년 동안 2대 회장을 맡아오면서 광선업체들의 선두에서서 마케팅능력 향상을 통한 국제 경쟁력 강화와 신규시장 진출 및 업체간 공동 협력사업을 위해 노력해 왔다. 취임사에서 현재 지속적으로 추진되고 있는 2단계 사업의 성공적인 추진은 물론 광산업 육성 3단계 사업의 대정부 지원정책을 이끌어 내는데 전념할 것이라 말했다.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.41 no.1
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• pp.1-8
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• 2004

We developed a new PDP gray scale implementation method on the basis of the quantized memory addressing(QMA) principle. We defined three wall charge states; 'fully-on', 'off', and 'half-on', by controlling the width of address pulses. With these three wall charge state, we were able to express 255 level gray scale with only 7 sub-fields. Furthermore, in contrast to the conventional driving methods, the sub-field combinations for any two adjacent gray levels differ by only 1 sub-field, at worst, and therefore, eliminate the dynamic false contours. Since this method use 7 sub-field, the sustain discharge Period is increased by more than $70\%$ compared to the 12 sub-field method which reduces the dynamic false contours.

• Journal of Digital Convergence
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• v.10 no.8
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• pp.149-157
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• 2012

Recently, many corporations and public institutions are busy preparing and providing measures in dealing with new privacy information law. This study reviews privacy impact assessments in order to perform preventing and diagnosis against potential threats focus on the K-hospital case. The quality of protection in K-hospital shows that the corporations itself is 79.0, the system is 97.0, the life cycle of the privacy is 67.4 and CCTV is 90.0. The lowest levels are saving and keeping 50.0, usage and offer 64.1 and destruction 66.7 among the life cycle of the privacy. The result of risk analysis shows that the highest levels are controlling for privacy 11.0, saving and keeping 12.5 and destruction 13.0. From the result, dangerous duplications are saving and keeping and destructions.

• The Journal of the Korea Contents Association
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• v.7 no.2
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• pp.161-169
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• 2007

This study examines the effects of learner's metacognition and scaffolding types on problem solving processes by examined 49 undergraduates to identify effective scaffolding type in Web-based PBL. This study classifies problem solving processes as defining the problem, developing solutions, making selections and justifications for the Proposed solution(s), and monitoring the solution. Moreover, it classifies scaffolding types as subject-related scaffolding and process-related scaffolding. As a result, the upper metacognition group showed higher performance only in monitoring solutions than the lower metacognioon group. This study also showed that offered scaffolding effects are not statistically significant. However, the lower metacognition group showed higher performance when subject-related scaffolding was offered and the upper metacognition group showed higher performance when process-related scaffolding was offered in making selections and justifications for the proposed solution(s) and monitoring solution. This study, based on the result of research, can partially verify the effects of learner's metacognition on problem solving processes and interaction effects between scaffolding and metacogniton in Web-based PBL.

• Journal of The Korean Association For Science Education
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• v.32 no.7
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• pp.1139-1156
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• 2012

The purpose of this study was to investigate students' and mentors' perceptions of Research and Education (R&E) programs in science high schools and science academies. The sample included 1,466 science high school/science academy students and 310 mentors. They filled out the survey, which consisted of the perceptions of R&E performance procedures (Selecting a topic, Learning topic-related knowledge, Designing and performing the research study, and Evaluating and presenting results), and R&E environment (Research period, meeting opportunities with mentor/subject, learning/experimental environment). The results showed that differences existed in the perceptions of R&E performance procedures and R&E environment, especially on selecting topics and learning topic-related knowledge stages. At the end of the paper, suggestions were included for improving R&E.