• 공학교육연구
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• 제27권1호
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• pp.63-70
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• 2024

The capstone design classes in the College of Engineering are often team project-oriented, and teamwork skills are reported to positively impact problem-solving abilities. While team project courses have various advantages, they also come with challenges such as social loafing and issues related to free riders, which consistently hinder the positive effects of team project courses. To prevent these issues, there is a need to provide a clear evaluation-reward system for team members' contributions. In this study, we examined the reliability of peer evaluation scores for team members' contributions and reviewed methods to incorporate them into team project grades. The review results indicated that peer evaluation scores are deemed to have considerable reliability from a qualitative perspective. However, due to the relatively small team size in team project courses (3 to 6 members per team), using the arithmetic mean of peer evaluation scores is statistically challenging. As a complementary approach, this study proposes limiting the reflection ratio of peer evaluation scores and applying a more macroscopic processing method, not the arithmetic mean, to incorporate peer evaluation scores for team contributions into grades.

• 디지털융복합연구
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• 제14권3호
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• pp.95-103
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• 2016

최근 팀 구성원들은 팀 프로젝트 수행 시 모바일 메신저 서비스(MMS: Mobile Messenger Service)를 자주 활용한다. 팀 구성원들은 MMS 활용을 통해 언제 어디서나 자유롭게 아이디어나 의사를 표현할 수 있다. 하지만, 팀 프로젝트에서 MMS 활용은 오프라인 회의보다 빨리 프로젝트를 수행하도록 압박을 받고, 능력 범위 밖의 역할을 할당 받기도 한다. 즉, 팀 구성원들은 MMS 활용으로 인해 업무에 대한 압박감이나 스트레스가 증가할 수 있으며, 이러한 과부하는 팀 간 갈등을 야기할 수 있다. 본 연구에서는 MMS 활용으로 인한 업무 과부하가 팀 성과에 미치는 영향을 살펴보고자 한다. 팀 성과에 영향을 미치는 요인으로 팀 몰입과 팀 신뢰를 고려하였으며, 팀 갈등은 팀 몰입과 팀 신뢰를 저해한다고 예상하였다. 팀 프로젝트가 많은 135명의 대학생을 바탕으로 연구 모형을 분석하였으며, PLS를 활용하였다. 연구 분석 결과 업무 과부하는 팀 갈등을 야기하는 주요 요인으로 밝혀졌다. 즉 MMS 활용으로 인한 업무 과부하가 발생하다보면 팀 간 갈등이 야기될 수 있고, 이는 팀 구성원 간 신뢰를 저하시켜 결국 팀 성과가 떨어지는 결과를 초래하게 된다. 마지막으로 본 연구 논문에서는 팀 프로젝트를 향상시킬 수 있는 MMS의 올바른 사용 방법에 대한 시사점을 제공해주었다.

• 농업과학연구
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• 제40권3호
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• pp.209-214
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• 2013

This study examined the work time, work posture, and work intensity for the actual measurement step in forest road the design work that was being carried out. The measurement of the forest road was being carried by a team of three workers and a team of four workers. The examination of work time found that the measurement of 1km took about 8 hours for the four-worker team and 12 hours for the three-worker team. The examination of work intensity found that the energy metabolic rates of the three-worker team were lower than four-worker team. Because their energy consumption per minute decreased as their work time and rest time increased. Furthermore, when appropriate rest time was applied according to work time, the energy metabolic rate decreased and the work intensity became lower. The four-worker team was more advantageous from the time and cost aspects of the forest road measurement work. Furthermore, as the rest time was very low compared to the work time, more efficient forest road measurement work would be possible if the work intensity was lowered by considering the rest time when calculating the standard work time.

• 대한본초학회지
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• 제29권6호
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• pp.125-132
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• 2014

Objectives : Suryeon-hwan (SRH) exhibits potent anti-inflammatory activity with an unknown mechanism. However, there has been a lack of studies regarding the effects of SRH on the inflammatory activities and effector inflammatory disease mechanism about macrophage before is not known. So, the investigation focused on whether SRH inhibited nitric oxide (NO) and prostaglandin $E_2$ ($PGE_2$) productions, as well as the expressions of inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-6 (IL-6), and mitogen-activated protein kinases (MAPKs) in LPS-stimulated RAW 264.7 cells. Methods : Cells were treated with 200 ng/mL of LPS 30 min prior to the addition of SRH. Cell viability was measured by MTS assay. The production of nitric oxide (NO) was determined by reacting cultured medium with Griess reagent. The content of level of cytokines (PGE, IL-6) in media from LPS-stimulated Raw 264.7 cells was analyed by ELISA kit. The expression of COX-2, iNOS and MAPKs was investigated by Western blot, RT-PCR. Results : We found that SRH inhibited LPS-induced NO, $PGE_2$ and IL-6 productions as well as the expressions of iNOS and COX-2. Furthermore, SRH suppressed the LPS-induced phosphorylation of MAPK and extracellular signal-regulated kinase 1/2 (ERK 1/2) activation. Conclusions : These results suggest that SRH has inhibitory effects on LPS-induced $PGE_2$, NO, and IL-6 production, as well as the expressions of iNOS and COX-2 in the murine macrophage. These inhibitory effects occur through blockades on the phosphorylation of MAPKs following activation.

• The Journal of Advanced Prosthodontics
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• 제14권1호
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• pp.12-21
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• 2022

PURPOSE. The purpose of this study was to investigate changes in retention and wear pattern of Locator^® and ADD-TOC attachments on a digital milled bar by performing chewing simulation and repeated insertion/removal of prostheses in fully edentulous models. MATERIALS AND METHODS. Locator (Locator^®; Zest Anchors Inc., Escondido, CA, USA) was selected as the control group and ADD-TOC (ADD-TOC; PNUAdd Co., Ltd., Busan, Republic of Korea) as the experimental group. A CAD-CAM milled bar was mounted on a master model and 3 threaded holes for connecting a bar attachment was formed using a tap. Locator and ADD-TOC attachments were then attached to the milled bar. Simulated mastication and repeated insertion/removal were performed over 400,000 cyclic loadings and 1,080 insertions/removals, respectively. Wear patterns on deformed attachment were investigated by field emission scanning electron microscopy. RESULTS. For the ADD-TOC attachments, chewing simulation and repeated insertion/removal resulted in a mean initial retentive force of 24.43 ± 4.89 N, which were significantly lower than that of the Locator attachment, 34.33 ± 8.25 N (P < .05). Amounts of retention loss relative to baseline for the Locator and ADD-TOC attachments were 21.74 ± 7.07 and 8.98 ± 5.76 N (P < .05). CONCLUSION. CAD-CAM milled bar with the ADD-TOC attachment had a lower initial retentive force than the Locator attachment. However, the ADD-TOC attachment might be suitable for long-term use as it showed less deformation and had a higher retentive force after simulated mastication and insertion/removal repetitions.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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• pp.1182-1184
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• 2004

We have studied contrast ratio of a homogeneously aligned nematic liquid crystal (LC) display as a function of the angle between the polarizer axis and LC director. The results show that a cell configuration in which a polarizer axis facing a light source coincides with a short LC axis has a better process margin in terms of high contrast ratio than that of the cell coinciding with a long LC axis.

• 공학교육연구
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• 제20권2호
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• pp.39-49
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• 2017

This research aims to explore the relationships between 'teamwork skills' (often called team activity competence) and 'thinking styles' of engineering students in Korea, and to provide an explanation for the application of team-based environment as well as for the increase of teamwork skills. Teams and team activity are pervasive in today's organization and there has been relatively much research on teamwork skills and its related factors. However, to date, little attention has been paid to the teamwork skills, essential factor in team-based environment and its relationships with thinking styles. This study was conducted with 383 engineering students at P University, and students' teamwork skills as well as thinking styles have been measured before and after team-based learning class (hereafter TBL). Our findings show that firstly, there was a significant increase of teamwork skills between before and after TBL class. Second, team activity competence was found to have a higher correlation with most of creativity generating styles (i.e. legislative, judicial, hierarchical and global styles). Third, hierarchical style was found to influence team activity more than other components, and also legislative, external, global and judicial styles contributed to team-based activity. These findings are expected to provide an explanation for the application of thinking styles in team-based environment and will be useful for the improvement of related courses in engineering school.

• International journal of advanced smart convergence
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• 제10권1호
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• pp.166-175
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• 2021

The purpose of this study is to analyze the structural relationship among fan experience, fan satisfaction, team attachment, psychological well-being, team loyalty and quality of life. Specifically, the structural equation model is analyzed for the team performance side leading to fan experience-fan satisfaction-team attachment-team loyalty and the an performance side leading to fan experience-fan satisfaction-psychological well-being-quality of life. The survey to achieve the goal of this study is a professional baseball fan. 150 pilot envestigation and 348 main envestigation were selected as the final effective samples. Data processing was done with SPSS 23 for frequency analysis, exploratory factor analysis and reliability analysis. Also, AMOS 21 was used for confirmatory factor analysis and structural equation model analysis. The results of the analysis are as follows: First, fan experience had a positive effect on the fan satisfaction. Second, fan satisfaction had a positive effect on the team attachment. Third, fan satisfaction had a positive effect on the psychological well-being. Fourth, team attachment had a positive effect on theteam loyalty. Fifth, psychological well-being had a positive effect on the quality of life.

• 한국콘텐츠학회논문지
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• 제16권12호
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• pp.310-326
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• 2016

새로운 대학생활과 학습 환경의 적응 및 교우 교수자와의 관계 형성에 부담을 가져야 하는 대학 신입생들을 돕기 위하여 많은 대학들이 노력하고 있다. 이에 본 연구는 대학 신입생들의 학교 적응 등을 돕기 위한 하나의 방안인 지역 대학 전략교양 교과('의사소통과 대인관계')의 팀티칭 운영(지도 교수 별 팀티칭 시행, 표준 교재 중심 지도 vs. 자율 멘토링 지도)의 효과성을 알아보고 고찰해 보고자 하였다. 연구 대상은 충북에 소재한 신입생 대상 수강인원 31명과 교수자 5명을 대상으로 하였으며, 연구 도구는 대학 전략교양 교과 개발팀이 제공한 '의사소통능력 평가지' 및 '교과 만족도, 대학 적응감, 친밀도' 그리고 관련 의견에 대한 간단한 설문을 제작 적용하였다. 이에 대한 자료 분석은 대응 및 독립 표본 T-검정과 평정척도 평가 결과를 중심으로 실시하였다. 연구 문제에 따른 주요 결과는 다음과 같다. 첫째, 두 가지 유형의 팀티칭 교육과정 운영이 전략교양 교과의 수업목표측면(의사소통능력 개선)에 어떠한 영향을 미쳤는지를 알아본 결과, 표준 교재 지도 중심 운영 팀이 유의한 효과를 나타내었으며, 둘째, 두 가지 유형의 팀티칭 운영에 따라 전략 교양 교과를 이수한 수강생들이 지각하고 있는 대학생활 적응 측면(대학 적응감, 친밀감)에의 변화가 어떠한지를 알아본 결과, '표준 교재 중심 운영 팀'이 각 각 유의한 차이의 변화를 나타내었음이 확인되었다. 셋째, 전략교양 교과의 이러한 팀티칭 교육과정 운영에 대해 학습자(수강생)들과 교수자들이 지각하고 있는 전반적인 교과의 만족도와 관련 의견이나 인식(강 약점, 개선 의견)그리고 기타 변화 상황 등을 알 수 있었다. 이러한 결과들을 중심으로 지도교수 중심 팀티칭의 교수 형태와 표준 콘텐츠 운영 방안의 교육적 함의점을 고찰하고 제안과 제한점을 제시하였다.

• 디지털융복합연구
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• 제18권10호
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• pp.107-117
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• 2020

조직성과를 창출하기 위해 리더십에 대해 끊임없이 많은 연구가 있어왔지만, 4차 산업혁명 시대의 변화에 적응하기 위해 팀 리더들의 역할에 주목한 연구는 많이 없었다. 이에, 본 연구에서는 현 시대의 필요한 리더의 기업가적 리더십이 팀 성과 사이에서 팀 효능감을 매개변수로 하여 어떠한 영향을 미치는지에 대해 연구하고자 한다. 이를 검증하기 위해 중국 소재 기업의 총 79개 팀, 530명의 팀원을 대상으로 데이터를 수집하고 SPSS와 AMOS을 사용하여 분석한 결과, 기업가적 리더십이 팀 성과에 정(+)의 영향이 있으며, 기업가적 리더십과 팀 성과 간의 관계에서 팀 효능감이 긍정적인 매개역할을 하는 것으로 나타났다. 따라서 본 연구에서는 사람과 성과를 동시에 추구하는 팀워크 관점에서 팀 리더들의 기업가적 리더십의 중요성과 팀 효능감을 향상시키는 중요성을 밝힌 것에 그 의의가 있다. 향후 팀 차원뿐만 아니라 개인 차원의 자기효능감과 창업의향을 포함한 폭 넓은 연구를 계속 진행할 계획이다.