• Composites Research
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• v.29 no.4
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• pp.125-131
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• 2016

In case of CNT mixing with epoxy, epoxy matrix needs to be diluted. This work studied the effect of the dilution condition of epoxy on CNT dispersion. The optimum solvent condition using acetone and DMF was found via mechanical and solubility methods which affects, the epoxy performance. The dispersion using acetone was better than the DMF and thus higher mechanical properties. Four mixing types of CNT particle were performed. To verify the effects of each step between dilution and dispersion, the dispersion between epoxy and CNT was evaluated via the electrical resistance and optical methods. The optimum dispersion was obtained via mechanical test and thermal analysis by DSC. Among four types, the best was to disperse CNT after epoxy and hardeners were diluted respectively.

• Journal of Korean Society of Forest Science
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• v.106 no.2
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• pp.230-239
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• 2017

This study was performed to analyze the relationship between the participative motivation and satisfaction of adolescents participating in Green Camp which was the field centered forest experience camp as analyzing the factor of the participative motivation and its influence on the satisfaction. Also, this study identified the changes in creative personality before and after participation to Green Camp. In results, there were five motivation factors: 'Adventure and Interest', 'Forest Activity', 'Improve Physical Health', 'Rest', 'Suggestion'. When respective factors were analyzed, the mean of 'Interest and adventure' was the highest at 4.303, and then 'Forest activity' at 4.287, 'Rest' at 3.970 followed. In the case of participant satisfaction, 'the teaching materials and tools of the camp' was the highest at 4.530, and then 'contents of the camp' at 4.410, 'lecture performer of the camp' at 4.229, 'the way of progress of the camp' at 4.036, 'the place of the camp' at 3.952, 'the passage time of the camp' at 3.843 followed. It showed that 'Forest activity' factor and satisfaction had a positive relationship (p<0.05). In addition, the means of creative personality before-and after-program participation increased from 3.687 to 3.773 (t=-2.218, p=0.029). Based on the analysis of satisfaction, this study suggested improvements of Green camp. Also, it proved that the participation Green camp had influence on the creative personality. The finding of this study is meaningful in that it proposed the necessity of activation forest education focusing on experience.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.171-179
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• 2019

This study was to identify the influence of knowledge acquisition on creativity in an organization. We selected the learning orientation among variables related to the acquisition of knowledge and analyzed the moderating effects of motivation in the mediating process of learning orientation, professional knowledge, creative thinking ability, and the relationship between them. To this end, a research model and hypothesis were established through literature studies, and 296 questionnaires were distributed and collected from Daegu and Gyeongbuk to test hypotheses. As a result of the verification through hierarchical regression analysis, it was confirmed that learning orientation has a positive effect on creative thinking skill, and expertise has a mediating effect. And in this mediation relationship, the moderating effect of motivation was confirmed. These findings are suggestive by checking the relationship between the elements in the expression of creativity in detail and identifying the influence of learning orientation. It will be able to provide guidelines for organizational management by explaining the process of creativity through the development of knowledge.

• Korean Association of Arts Management
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• no.58
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• pp.49-88
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• 2021

Contemporary literary writers engage in multiple jobs and activities in the changing industrial and institutional environments to manage careers and produce literary value. The notion of art entrepreneurship envisages writers as the actors pursuing optimal rewards at both literary and economic levels by applying creative knowledge and skills to the management of career. In contrast, the notion of creative labor argues that writers go through career insecurity as they pursue self-fulfillment through work. This paper critically reviews two notions and suggests the notion of cultural intermediaries to better understand their production of literary value within the variety of relational contexts where they are situated. This paper analyzes the structures and characteristics of a wide range of intermediary practices by literary writers. Based on the analysis, I argue that the autonomy of literary value the writers construct and their status of entrepreneur-labourer are contingent upon the relational contexts within which they practice the intermediary work. I also suggest that literary writers by utilizing a variety of tactics cope with the changes that shape the autonomy of literature and invent new roles and identities as cultural intermediaries. Furthermore, literary writers develop not only self-management skills to adapt to the changing environments but also the collective capacity to cope with the constraints derived from the structural change of literary production and circulation. Finally, I argue that the art management discipline can reflect upon and support the creative endeavors of literary writers by embracing the critical understanding of structural changes suggested by the disciplines of humanities and social sciences.

• Journal of Ginseng Research
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• v.46 no.3
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• pp.396-407
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• 2022

Background: Colorectal cancer (CRC) has a high morbidity and mortality worldwide. 20 (S)-ginsenoside Rh2 (G-Rh2) is a natural compound extracted from ginseng, which exhibits anticancer effects in many cancer types. In this study, we demonstrated the effect and underlying molecular mechanism of G-Rh2 in CRC cells in vitro and in vivo. Methods: Cell proliferation, migration, invasion, apoptosis, cell cycle, and western blot assays were performed to evaluate the effect of G-Rh2 on CRC cells. In vitro pull-down assay was used to verify the interaction between G-Rh2 and Axl. Transfection and infection experiments were used to explore the function of Axl in CRC cells. CRC xenograft models were used to further investigate the effect of Axl knockdown and G-Rh2 on tumor growth in vivo. Results: G-Rh2 significantly inhibited proliferation, migration, and invasion, and induced apoptosis and G₀/G₁ phase cell cycle arrest in CRC cell lines. G-Rh2 directly binds to Axl and inhibits the Axl signaling pathway in CRC cells. Knockdown of Axl suppressed the growth, migration and invasion ability of CRC cells in vitro and xenograft tumor growth in vivo, whereas overexpression of Axl promoted the growth, migration, and invasion ability of CRC cells. Moreover, G-Rh2 significantly suppressed CRC xenograft tumor growth by inhibiting Axl signaling with no obvious toxicity to nude mice. Conclusion: Our results indicate that G-Rh2 exerts anticancer activity in vitro and in vivo by suppressing the Axl signaling pathway. G-Rh2 is a promising candidate for CRC prevention and treatment.

• Journal of Korean Elementary Science Education
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• v.42 no.3
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• pp.409-420
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• 2023

This study aims to investigate the impact of science classes employing creative science drama on elementary school students' academic achievement and attitudes toward science during the final step of elementary science classes. The creative science drama used in this study is a class-closing activity wherein the teacher provides a basic script for the learning topic and then allows students to complete the rest of the story using their assignment. It devised a creative science drama class based on the research of Yoon (2016), and the contents of this study were centered on the use of magnets and the appearance of the Earth in the first semester of third grade. Students in their third year at H Elementary School in Gyeonggi-do were the subject of this study. The results showed that scientific achievement through science drama in the experimental class was improved, with a statistically significant difference. However, ANCOVA analysis revealed no statistically significant differences in attitudes toward science. Moreover, there was no statistically significant difference in scientific drama perception. Interviews with students in the experimental class applying science drama revealed that students found difficulty in writing science drama scripts and that coordinating and reaching a mutually acceptable opinion in group activities required the most discussion and cooperation. However, many of them stated that the experience of scientific drama was enjoyable and informative, and since what they learned was transformed into a scientific drama, they remembered the lessons longer.

• The Journal of the Acoustical Society of Korea
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• v.42 no.4
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• pp.285-297
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• 2023

The present study aims to investigate the acoustic performance of the creative convergence classrooms in Korea used by elementary school students under the age of 9 introduced through the school space innovation project. In order to do this, acoustic performances of three creative convergence classrooms were measured. The measured acoustic parameters were background noise levels, Reverberation Time (RT), D₅₀, Speech Transmission Index (STI), and Inter-Aural Cross Correlation (IACC). Also, acoustic parameters including Transmission Loss (TL) and standardized level difference (D_nT) have been measured for the analysis of sound insulation performance of walls. In addition, the noise level was measured according to the opening conditions of doors and windows in the classroom. As a result, background noise level was measured at an average of 28.0 dB(A) to 32.8 dB(A) when the air conditioner was not operated, and the RT did not exceed 0.6 s. There were differences in IACC according to various desk layouts, and IACC values were high in the center line and the seats near the sound source. In particular, higher IACC was measured at the seats on the center line facing the source squarely. Regarding noise level in the classroom according to the opening conditions of doors and windows, the standards were exceeded when all windows, or windows and doors front onto the corridor were opened.

• Journal of the Korean Professional Engineers Association
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• v.39 no.4 s.187
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• pp.38-41
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• 2006

Value Engineering(VE) is the systematic activity to make a Alternatives for user's needs with an access by function analysis, creative thoughts, and the lowest life cycle cost. However, the current activity called VE is to make a Alternatives by experience and to make a report in similar to VE format. The right understanding of the concept and the process of VE is required for more effective Alternatives and VE activity with reliability.

• Proceedings of the Korea Society of Costume Conference
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• 2003.10a
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• pp.69-69
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• 2003

In the late 1970s, Punk style that appeared according to the social reaction among labor class youngsters has reappeared till now, and also the emotion and mode are working on fashion greatly. In addition to that, as it pervades to young generation more freely, it's becoming a kind of origin in creative fashion. Especially, Punk style leather jacket has spread to high fashion and settled down as an essential item through popularization of leather jacket.

• Proceedings of the Korea Contents Association Conference
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• 2014.11a
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• pp.63-64
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• 2014

문화융성은 문화의 여러 층위와 지향들이 상호작용을 함으로써 개인을 비롯한 사회 각 주체들의 창의와 지성의 정신 활동을 생산성 있게 지속시키는 데로 나아가는 것, 그리하여 이들 활동들을 역동적으로 융합(networking)하고 선순환 함으로써 우리의 정신과 의식이 산출해 내는 것들의 가치가 높아지고, 이 시대를 살아가는 우리들의 정신적 삶이 더욱 높은 수준으로 고양되는 상태를 말한다. 본 논문은 2014년 문화체육관광부가 제정, 공포한 <지역문화진흥법>에 담긴 문화융성을 담론분석 하였다.