• Journal of Industrial Convergence
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• v.17 no.4
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• pp.103-115
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• 2019

Background: This study was conducted to identify the experiences of nursing students students who participated in jigsaw cooperative learning in medical terminology classes. Methods: Data were collected through in-depth individual interviews and analyzed using the Colaizzi phenomenological analysis methodology. Results: Six categories emerged through experiences of jigsaw cooperative learning of nursing students. The specific categories are 'two contrasting emotions that exist under consciousness', 'progression towards self-directed learning', 'resurrection of community spirit', 'facing the growing self', 'realistic limits', and 'co-operation that has risen above consciousness'. Conclusion: Jigsaw cooperative learning enhances nursing students' self-directed learning and community consciousness. It is a very useful teaching and learning method that encourages growth through community spirit and cooperation. In the future, we propose a study using jigsaw-cooperative learning in various classes.

• The Journal of the Korea Contents Association
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• v.18 no.6
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• pp.102-112
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• 2018

This study, energy saving technology development is desperately needed and the energy efficiency through improved environmental impact by minimizing economic raw materials and subsidiary materials can lead to reductions in local Small Business at the heart of the new technology in the background, product design and development. That's about technology, strengthen and broaden the design patent right infringement of its competitors by gaining a global corporate foundation of development research. In order for companies to develop diagnostic analysis and key technology analysis and evaluation of progress on the scope of rights through the development of new technologies to diagnose and design rights and the extent and design rights infringement and design development since the company's growth analysis. Integration of the design development and the core technologies of the company will be the core of national industrial competitiveness of small businesses and by securing and creating the knowledge-based rights, fusion link that can grow into compatibility business is much more need in a difficult economy.

• Proceedings of the Korean Vacuum Society Conference
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• 2010.02a
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• pp.75-75
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• 2010

단일벽 탄소나노튜브(SWNT)는 뛰어난 물리적 성질과 화학적 안정성을 가지고 있어서 다양한 분야의 응용이 기대되어 폭넓은 연구가 진행 되고 있다. 특히 SWNT의 전기적 및 기계적 특성들은 SWNT의 직경 및 뒤틀림도(chirality)에 의해 크게 좌우되기 때문에, 합성하는 단계에서 직경 또는 chirality를 제어에 관한 많은 이론적 연구가 진행되어 왔으며, 최근에는 초기 SWNT의 핵생성 단계에서의 촉매의 거동 및 상호 연관성 등에 관한 실험적인 연구결과들이 속속 보고되고 있는 실정이다. 하지만, 아직도 이에 관한 더욱 다양하고 활발한 연구 접근 및 결과들이 필요한 시점이다. 상기 배경을 바탕으로 본 연구에서는 균일한 직경을 갖는 SWNT의 합성을 위한 기초연구로서 SWNT의 직경과 촉매나노입자의 크기의 상호 연관성에 대해 체계적으로 조사하였다. 우선 SWNT합성을 위한 촉매나노입자를 얻기 위해 페리틴(ferritin)용액의 농도 및 스핀코팅 조건을 변화시킴으로써 기판 위에 분산농도를 제어한 후, 대기 열처리를 통하여 촉매나노입자의 농도를 제어하였다. 나노입자의 평균직경은 4 nm 정도로 비교적 균일하였으며, 고농도의 촉매입자는 SWNT의 다발화(bundling)를 유발하였다. 따라서, SWNT와 나노입자 직경의 상호연관성을 조사하기 위해서는 단분산(monodispersed) 된 나노입자를 이용하였으며, 아르곤 분위기에서 추가적으로 고온($900^{\circ}C$) 열처리를 실시함으로써 나노입자의 크기감소를 도모하였다. 실험결과, 열처리 시간의 증가에 따라 입자크기가 감소함을 확인하였으며, 이는 나노입자의 증발에 의한 것으로 예상된다. 다음으로는 열처리를 통하여 직경이 제어된 나노입자를 이용하여 SWNT를 합성한 후 SWNT와 촉매크기 사이의 크기 관계를 조사하였다. SWNT의 합성은 메탄을 원료가스로 열화학증기증착법을 이용하였고, 합성기판으로는 산화실리콘웨이퍼와 퀄츠기판을 이용하였다. 성장한 SWNT의 직경은 AFM을 이용하여 측정하였으며, 퀄츠기판에 수평배향 성장시킨 SWNT를 3차원 구조의 기판으로 전사(transfer)하여, 라만분석이 용이하도록 하였다.

• Journal of Korea Port Economic Association
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• v.31 no.2
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• pp.1-21
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• 2015

This study verifies the change in market conditions in the Korea-China and Korea-Japan car ferry routes. Variation in historical development has led to differences in the lifecycle stages of these two car ferry shipping markets. However, previous studies have focused on individual car ferry routes rather than offering a more general understanding of this market. Based on the foregoing, we investigate the international car ferry market conditions from/to Korean ports, assess the management performances of car ferry companies, analyze the lifecycle stages of each car ferry route, and offer insights into the future of these markets. We show that the competitive market conditions and demands of passengers and cargoes differ between these routes. As for the market stage, we conclude that the Korea-China route is entering a mature market, whereas the Korea-Japan route is entering a declining stage.

• Journal of Korean Classical Literature and Education
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• no.39
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• pp.5-39
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• 2018

This paper aims to identify the characteristics of literary therapy in relation to literature education. It also intends to clarify its distinctiveness. Literary therapy is not to teach literature. It does not deliver knowledge on agreed analyses, backgrounds and the nature of genres. Literary therapy encourages participants to fully appreciate one's thought and emotions and express them. The end goal is self-knowledge rather than the understanding of texts. Literary therapy focuses on self-knowledge through literatures as opposed to literature education which aims to encourage understandings of literature texts. In literary therapy, literature is media for personal growth facilitating self-expansion. Literature works enable participants to view oneself objectively by the means of one's responses to literature works. Literary therapy has more permissive viewpoints on recipients' response to literature texts than literature education. In addition, the subject of literary therapy is more unique and individualistic.

• Korean Journal of Forensic Psychology
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• v.12 no.3
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• pp.323-341
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• 2021

This study examined public perceptions of the reasons underlying sentence reduction for defendants convicted of sex crimes against persons with intellectual disability. An online survey was conducted among 522 adults in South Korea. Respondent endorsement of 20 reasons underlying sentence reduction, which were embedded within the respective rulings, and the perceived appropriateness of statutory sentence for the crimes committed were assessed. The results showed that most respondents endorsed the sentence; moreover, those who disagreed underscored the need for more severe punishment. Almost all the respondents perceived the following reasons and explanations unfavorably: impulsiveness caused by sexual arousal or alcohol consumption; an accidental occurrence; and personal characteristics such as defendant age, health condition, socioeconomic status, developmental history, and family background. However, there was a relative agreement in that the damage caused by the incident was relatively minor, or the defendant's reflection and attitude to recover the damage were used as reasons for the reduction. Differences in respondent perceptions of the reasons underlying sentence reduction as a function of gender and educational background were relatively small. However, younger respondents held harsher attitudes toward sentence reduction. The present findings underscore the need to be mindful of victims' statements and the characteristics of persons with intellectual disability while sentencing.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.33 no.2
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• pp.61-70
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• 2023

This paper examines the way of thinking and limitations of physicists regarding the phenomenon of superconductivity and outlines how room-temperature and ambient-pressure superconductors can be developed through the statistical thermodynamic background of the liquid state theory. In hypothesis, the number of electron states should be limited by confining them to a state close to one-Dimension. Simultaneously, the electron-electron interactions should be frequent enough for the electrons to have liquid-like properties. As an example of implementing the hypothesis, our team reports the development of room-temperature and ambient-pressure superconductivity of a material named LK-99 (superconducting compound name developed in the research), whose structure was revealed through numerous experiments with a clue found by chance. Moreover, we summarize the theoretical and experimental basis for the characteristics and discovery of the world's first superconducting material surpassing the critical temperature of 97℃ at atmospheric pressure.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.779-787
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• 2023

Previous research regarding budget analysis has been mostly limited to describing annual changes in defense budgets relative to total budgets without a theoretical background. More empirical defense budget research is needed with better data. This study conducts an empirical analysis of national defense expenditures using Punctuated Equilibrium Theory (PET). The purpose of this study is to examine trends in the Republic of Korea's (ROK) functional defense budgets (total defense budget, force operation budget, force improvement budget) and to identify and analyze radical points of change in the defense budget using punctuated equilibrium theory. This study also explores trends and punctuations in the national defense budgets using annual defense budget data from the ROK for every year from 1998 to 2017. This study finds that from 1998 to 2017 the spending pattern of the total defense budget in the ROK was characterized by 19 years of stable growth and a one-time punctuation (5.0%). The force operation budget exhibited stable growth in eighteen years and was punctuated twice (10%). The force improvement budget was punctuated five times.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.34 no.1
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• pp.22-29
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• 2024

Artworks inspired by birds have consistently enjoyed popularity, both in the past and present. Designs featuring birds from mythology have particularly garnered significant admiration. Therefore, this study aims to develop into the jewelry design with bird motifs from "Sanhaegyeong", a representative work of Chinese mythology. The research analyzes the characteristics of birds depicted in "Sanhaegyeong" and investigates design cases inspired by these birds. Birds in "Sanhaegyeong" are broadly categorized into divine birds and monstrous birds. Divine birds are predominantly represented with diverse color combinations and unified tones, while monstrous birds are primarily expressed in contrasting colors such as red, green, and white. The study further scrutinizes the forms, colors, and symbolism of jewelry inspired by birds in "Sanhaegyeong". These works predominantly utilize various colors, green, and red. By integrating shapes and patterns relevant to the era associated with the origin of "Sanhaegyeong", designers applied them in the designs, taking into consideration the contextual background and the relevance of design forms. It is anticipated that these research findings will be valuable to designers intrigued by mythical bird designs.

• Tuberculosis and Respiratory Diseases
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• v.42 no.4
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• pp.492-501
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• 1995

Background: Transforming growth factor- alpha(TGF-$\alpha$) may play important roles in carcinogenesis, tumor growth, and angiogenesis. Transforming growth factor-beta(TGF-$\beta$) are known to be involved in cell-cycle control and regeneration. TGF-$\alpha$ positively acts on growth control of many epithelial cells in contrast to the negative role of TGF-$\beta$. Method: To evaluate the possible role of TGF-$\alpha$ and TGF-$\beta$ in human primary lung cancers, the expression of TGF-$\alpha$ and TGF-$\beta$ were immmunohistochemically investigated in tissue sections from forty seven cases with lung cancers and ten cases with non-cancerous lung tissues. Recombinant cloned monoclonal antibody of TGF-$\alpha$ and neutralizing antibody of TGF-$\beta$ were employed as primary antibodies after dewaxing the formalin-fixed, paraffinized tissue sections. Results: TGF-$\alpha$ was expressed in the cytoplasms of tumor cells in thirty five cases of forty seven(74.5%) primary lung cancers, whereas the control expressed in two of ten brochial epithelial cells. The expression of TGF-$\alpha$ was disclosed in four cases of eleven(36.4 %) small cell carcinomas and thirty one cases of thirty six(86.1%) non-small cell carcinomas of the lung. Expressions of TGF-$\beta$ was discernible in bronchial epithelium in eight of ten non-cancerous lung tissues. The expression of TGF-$\beta$ was noted in the cytoplasms of tumor cells in eight cases of forty seven(17.0%) primary lung cancers. The expression of TGF-$\beta$ disclosed in two cases of eleven(18.2%) small cell carcinomas and six cases of thirty six(16.7%) non- small cell carcinomas of the lung. Conclusion: These findings suggest that up-regulation of TGF-$\alpha$ and down-regulation of TGF-$\beta$ are involved during development and growth of primary lung cancers.