• 실천공학교육논문지
• /
• 제12권2호
• /
• pp.255-264
• /
• 2020

데이터베이스 설계 교과목에서 팀 프로젝트는 학생들의 데이터베이스 설계 역량을 계발하기 위해 매우 중요한 과정이며, 팀 프로젝트를 원활히 수행하기 위해서는 팀원들 간의 협업과 팀워크 못지 않게 학생-교수 간의 활발한 상호작용이 매우 중요하다. 하지만 2020학년도 1학기에 갑자기 전면 비대면 수업을 하게 되면서, 데이터베이스를 구축하는 팀 프로젝트가 큰 비중을 차지하는 이 수업을 효과적으로 운영할 수 있을 지 의문이었다. 하지만 줌과 같은 실시간 화상 매체를 이용한 상호작용과 온라인 교육지원시스템(LMS)에서 지원하는 토론, 퀴즈, 질의응답 등의 기능을 적극적으로 활용하고, 온라인 발표와 상호 평가 등을 통해서 팀 프로젝트를 원활히 진행할 수 있었다. 본 논문에서는 비대면으로 공학 팀 프로젝트를 운영한 경험을 공유하고, 세 차례 실시한 설문을 기초로 이 수업의 개선 방향과 비대면 수업을 전반적으로 개선할 수 있는 여러 가지 방안을 제안하였다.

• 천문학회보
• /
• 제42권1호
• /
• pp.57.3-58
• /
• 2017

Single Point Diamond Turning (SPDT) is a cost-effective technique to fabricate metallic mirrors. In particular, the servo-assisted diamond turning option is highly useful for the fabrication of freeform surfaces. However, the SPDT process leaves periodic tool marks on machined mirror surfaces, leading to undesirable diffraction effect, as well as the deviation of input beam. In order to solve this problem, we propose new SPDT machining conditions to minimize tool marks. We will also show the results from optical measurement and Power Spectral Density (PSD) analysis to evaluate the expectable performance for applications in wide field infrared telescopes.

• 벤처창업연구
• /
• 제17권2호
• /
• pp.99-114
• /
• 2022

크라우드펀딩은 자금조달이 어려운 스타트업과 중소기업을 위한 대안적 자금조달 방법으로 혁신적이고 창의적인 특징을 가진다. 크라우드펀딩을 진행하기 위해서는 화면 구성을 위한 디자인, 대중을 대상으로 하는 마케팅 및 홍보, 모집된 자금을 관리하는 회계, 리워드 구성을 위한 제품 제작 및 구매 등 다양한 기능이 필요하다. 또한, 단기간에 완성해야 하는 프로젝트로 팀원들 간의 협력이 중요하다. 이에 본 연구는 이러한 크라우드펀딩의 특성에 주목하여 크라우드펀딩을 진행하는 팀 특성이 팀성과에 어떤 영향을 미치는지를 연구하였다. 본 연구에서는 팀 특성 변수로 기능적 배경 다양성과 공유리더십을 측정하였고, 팀성과로 객관적인 성과인 크라우드펀딩 달성 금액과 주관적인 성과인 업무완성도, 팀혁신을 측정하였다. 총 79개 크라우드펀딩팀에 소속된 220명을 대상으로 회귀분석을 통해 연구가설을 검정한 결과, 기능적 배경 다양성과 공유리더십은 업무완성도와 팀혁신에 긍정적인 영향을 미치는 것으로 나타났지만, 펀딩 금액에는 유의미한 영향을 미치지 않는 것으로 나타났다. 본 연구는 크라우드펀딩을 진행할 때 필요한 요소인 팀원의 기능적 배경 다양성과 공유리더십 등 제안자의 특성이 크라우드펀딩에 미치는 영향을 밝혀냄으로써 크라우드펀딩의 연구를 확장하고, 크라우드펀딩팀 구성뿐만 아니라 혁신적인 아이템을 기반으로 조직을 운영하는 스타트업과 중소기업의 팀 구성에 시사점을 줄 것이다.

• 물리치료
• /
• 통권34호
• /
• pp.2-8
• /
• 1985

STATISTCAL ANALYSIS OF SPORTS INJURY Seong-Ryul Hong R.P.T. Seoul School Health Center Hospital Upon comings of 1986 Asian Games and 1988 Olympiad in Seoul , Korean people have more enthusiasm for sports than any other time .It's very desirable that student athletes are doing thier best to train skills and to improve records for the coming 2 international sports events .I concluded as followings from the statistical analysis of 159 student athletes about sports injury who had been received Physiotherapy in School Health Center Hospital in Seoul from Jan.8 1982 to Dec,4 1984Track & field is the most common team among school sports team in Seoul.47 Students(30%) were injuried during football game, Career of sports injury: 88 students(55.3 %) were injured for the first time .Location of injury: More than 30% in both sexs were injuried in the Lumbar Frequency in injury in lower limb is higher than that of upper . Frequency of injury in upper right limb and lower left limb are higher than of counterparts6. Diagnosis: 32% of students were diagnosed as lumbago. Treatment period: 42.7% of students were healed within a week and 76.8% within 2 weeks

• Journal of Nutrition and Health
• /
• 제52권6호
• /
• pp.593-603
• /
• 2019

Purpose: Previous studies have highlighted that the nutritional behaviors among South Korean workers are far from ideal. This study examined the organizational influences affecting the eating practices of office workers in South Korea. Methods: We conducted in-depth interviews with 22 office workers at 12 companies in South Korea. The interviewer inquired about the employees' daily routines on food and beverage intake. The various factors that influence their food choices in their work environments were also explored. The interviews were transcribed and then analyzed using a content analysis. Results: A framework analysis revealed 7 key recurring themes, and these were grouped under three levels: team-, company-, and corporate group-levels. First, team dinners are core social events for all the workers and they tend to include high-caloric food and alcoholic beverages. The frequency of team meals and the food associated with them depend on various team characteristics such as gender composition, the nature of a team's work and the team leaders' emphasis on group meals. Second, the company's policies and practices regarding budget allocation for team meals and subsidies for cafeteria meals affect the workers' food intake practices. In addition, the physical environment of the worksite cafeterias can influence the choices of foods. Third, various corporate group policies that were not designed to target food intake had additional positive effects on the workers' eating behaviors. Conclusion: This study provides important insights into the broader organizational influences on the food consumption of employees in their workplace. These insights can be used to design and implement more effective intervention strategies for improving the nutritional behaviors of office workers.

• Food Science and Biotechnology
• /
• 제18권1호
• /
• pp.162-166
• /
• 2009

This study evaluated glucose effect on Listeria monocytogenes survival under gamma irradiation and NaCl stress. L. monocytogenes in phosphate buffered saline (PBS) plus glucose (0-4%) was treated with gamma irradiation (0-0.5 kGy), and the samples were then exposed to NaCl (0-9%) in tryptic soy agar plus 0.6% yeast extract. $D_{10}$ and $t_{3D}$ values were determined, and a model for prediction of $D_{10}$ values was developed. Cell counts of L. monocytogenes reduced as irradiation dose increased, and L. monocytogenes in PBS (no glucose) was more sensitive to irradiation and NaCl compared to those in PBS (2 or 4% glucose). $D_{10}$ values were 0.07-0.1, 0.12-0.16, and 0.13-0.15 kGy for 0, 2, and 4% glucose, respectively. The $t_{3D}$ values were 0.22-0.3 (0% glucose), 0.35-0.48 (2% glucose), and 0.40-0.44 (4% glucose). A model performance was acceptable. These results indicate that glucose in foods would increase the resistance of L. monocytogenes to gamma irradiation and NaCl stress.

• 건축역사연구
• /
• 제30권3호
• /
• pp.45-54
• /
• 2021

In 2020, Yi Hunwoo was discovered as one of the earliest modern architects in Korea. However, his personal life was yet mostly unknown, including the time of his death. The research team ('the team' hereafter) searched for the records of his personal life and professional career. First, his family genealogical chart revealed that he died in 1937. Having located and contacted Yi's direct descendents, the team was able to clarify his family background with the descendants' testimonies. They possess the photographs of him and his family members, including Yi's picture when he was a freshman at the Nagoya Higher Technical School in Japan. The team also identifies his birthplace and the location of his grave as Hadong, Gyeongsangnamdo, Korea. The team visited his project site in Jinju, Gyeonsangnamdo, Korea and obtained more detailed information about the Ilshin Girls' High School, which he designed in 1928. Gyohoan, the congregation records of Cheondogyo, one of the leading religions in Korea during Yi's times, confirmed that he was one of the congregation members. The field research also discovered the house he designed and built in his hometown of Hadong, probably the only surviving architectural project by him. This paper is to report the result of the research on Yi's life and career with the aim of providing materials for further studies in identifying and positioning him more properly in the early 20th century Korean architectural scene.

• International journal of advanced smart convergence
• /
• 제9권3호
• /
• pp.153-160
• /
• 2020

This research aims to provide empirical basic data for the development of local communities through the establishment of efficient strategies for the formation of positive relations between the club and the region through the Creation of Shared Value (CSV) activities. We come up with the results of this study to show that CSV, social problem orientation, and core competency utilization affect the team trust of local community, and that CSV, long-term orientation, social problem orientation and core competency utilization affect community identification. The research should enhance the value of professional sports teams that promote their own path to self-sustaining as a single independent business area, and identify their trust through CSV activities for co-prosperity with their local communities, and thus their relationship with the community. Therefore, various strategies and efforts will ultimately increase the team trust and community identity of local residents in professional volleyball teams, while at the same time gaining positive effects on professional volleyball teams.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
• /
• pp.229-241
• /
• 2008

In order to investigate stabilization effect on As-contaminated soils treated by zero-valent iron(ZVI) and industrial by-products, batch tests and column tests were carried out with As-contaminated soils collected from farmland around the abandoned mine site. In batch tests, ZVI and industrial by-products(blast furnace slag, steel refining slag and oyster shell powder) were used as treatment materials to reduce As. Industrial by-products were mixed with As-contaminated soils, in the ratio of 1%, 3%, 5% and 7% on the weight base of dried soil. After incubation, all samples showed the reduction of As concentration and it was expected that ZVI and steel refining slag were effective treatment materials to remove As among treatment materials used in batch test. In column tests, columns were made by acrylic with the dimension of diameter=10cm, height=100cm, thickness=1cm and these columns were filled with untreated soils and treated soils mixed with ZVI and steel refining slag(mixing ratio=3%). Distilled water was discharged into the columns with the velocity of 1 pore-volume/day. During test, pH, EC, Eh and As concentration were measured in the regular term(1 pore-volume). As a result, ZVI and steel refining slag were shown 93%, 62% reduction of As concentration respectively by comparison with untreated soils. Therefore, if ZVI and steel refining slag are used as treatment materials in As-contaminated soils, it is expected that the As concentration in soils is reduced effectively.

• 공학교육연구
• /
• 제25권6호
• /
• pp.69-80
• /
• 2022

In this study, the application of flipped learning methodology to thermodynamics in mechanical engineering was examined, and how university students view flipped learning and the effects of flipped learning were analyzed. To analyze the effects of flipped learning, pre-class survey, assessment on learning in pre-class, team activities during class, and post-class survey were conducted. The analysis was also conducted on 33 students who took the thermodynamics course in mechanical engineering, and the PARTNER flipped learning model was applied to the class. The results of this study are as follows; In the preliminary survey, the students expected that the flip-learning class with team activities and teaching between team members would be helpful in improving their learning. In addition, students recognized that cooperative learning through a team was helpful for learning. The case reflecting the result of pre-learning evaluation to the subject grades showed higher pre-learning evaluation results than the case not reflecting the result of the pre-learning evaluation to the subject grades, and it was found that the pre-learning evaluation was acting as a factor to promote learning in pre-class. In post-class survey, the satisfaction with the flipped learning class was high, indicating that the effectiveness of the flipped learning class applied to the thermodynamics class was excellent.