• 기독교교육논총
• /
• 제63권
• /
• pp.13-37
• /
• 2020

중국 우한에서 발생한 코로나바이러스(COVID-19)의 전파력과 치사율에 주목한 WHO는 글로벌 비상사태를 선언했으나, 효과적인 치료제를 확보하지 못한 채 상황이 악화되자 팬데믹으로 상향 조정했다. 사회적 거리두기와 자가 격리 및 여행 제한에 따른 경제위기 때문에 자유무역 중심 세계 경제체제 붕괴와 세계화의 퇴조가 거론되고 있다. 팬데믹에 제대로 대처하지 못한 정치리더십이 도전받고, 사회는 비접촉과 부동성 문화로 급속히 전환 중이다. 교육 분야에서는 탈학교화라는 개념이 디지털 매체를 통해 물리적 공간에서 현실화하고 있다. 교회교육 역시 심각한 위기에 처했다. COVID-19 팬데믹 상황에서 교회들은 팬데믹에 관한 신앙 및 신한적 성찰, 온라인 예배와 체계적인 신앙교육, 그리고 비대면 중심의 목회까지 포괄하는 이른바 뉴노멀을 기대하고 있다. 포스트 코로나 시대에 교회교육은 급변하는 주변 상황에 부응해서 적극적으로 대안을 모색하면서 의미 있는 기독교적 가치에 초점을 맞춘 교육신학을 새롭게 재구성해야 한다. 아울러서 오프라인과 온라인을 결합한 모바일(또는 온라인) 교회학교를 운영하는 한편, 비대면과 면대면 학습을 혼용하는 학습방식(Blended Learning)을 도입하고, 교회학교와 홈스쿨링을 결합해서 교회와 가정이 교육의 책임을 분담할 필요가 있다.

• 한국방사선학회논문지
• /
• 제15권4호
• /
• pp.519-524
• /
• 2021

코로나19 상황이 국내 유입으로 인한 확산과 함께 지역사회로까지 감염이 계속되어 대학들 마다 전면 온라인 수업 및 부분적으로 온라인 수업을 진행 해야 하는 상황이 발생했다. 코로나19 상황에서 수업환경 변화에 따른 온라인 비대면 수업에 주목하여 콘텐츠 및 수업내용에 대한 학습자들의 수업에 대한 만족도를 알아보고자 하였다. 2021년 6월 1일부터 6월 11일까지 대구시 소재 S대학교 방사선과 재학생 2, 3학년을 대상으로 설문지를 이용하여 온라인 비대면 수업 전공 교과목에 대한 만족도 조사를 분석하였다. 연구결과 콘텐츠 및 수업 내용 만족도는 평균 3.78 ± 0.75점으로 나타났으며, 학습 만족도는 평균 3.00 ± 1.14점으로 나타났다. 또한, 온라인 비대면 수업 수강 시 학생의 수업 태도와 콘텐츠 및 수업 내용 만족도 간 상관성이 가장 높게 나타났으며(r=0.555, p<0.01), 콘텐츠 및 수업 내용 만족도와 학습 만족도 간에도 상관성이 있음을 알 수 있었다(r=0.331, p<0.01). 비대면 온라인 전공 수업 시 콘텐츠의 질적 향상과 함께 학생들과 교수자의 상호작용이 좀 더 활발하게 이루어진다면 비대면 온라인 수업에 대한 만족도가 향상 될 수 있을 것으로 생각한다.

• 디지털융복합연구
• /
• 제20권4호
• /
• pp.215-224
• /
• 2022

본 연구는 외식기업을 대상으로 원가의 비대칭적 행태를 검증하고 최근 경기 침체 현상과 관련된 코로나 19 팬데믹 현상과 유동성에 영향을 미치는 영업순환주기가 원가의 행태에 영향을 미치는지 검증하고자 하였다. 2019년과 2020년 외식기업을 대상으로 분석을 실시하였으며 원가는 매출원가와 판매비와 관리비의 합으로 측정하였다. 분석 결과, 외식기업은 활동수준 감소에 따라 원가탄력적인 행태로 나타났다. 또한 코로나 이후 이전보다 원가의 하방탄력적인 행태는 강화되었으며 영업순환주기가 짧을수록 원가는 하방탄력적인 행태로 나타났다. 마지막으로 영업순환주기의 구성요소인 재고자산 보유기간과 매출채권 회수기간 모두 짧을수록 원가의 하방탄력적인 행태는 강화되었다. 이러한 결과는 외식기업을 대상으로 원가의 구조 및 그러한 구조에 팬데믹 현상과 영업순환주기가 영향을 미칠 수 있는 요인을 검증한 것에 의미가 있을 것으로 보인다. 코로나 19로 인하여 외식업체가 직면한 상황을 원가 측면에 접근하였으며 이러한 팬데믹 현상이 기업의 매출 감소에 원가절감으로 이어질 수 있다.

• Transactions on Electrical and Electronic Materials
• /
• 제17권5호
• /
• pp.297-301
• /
• 2016

The effects of ambient temperature and diameter on the insulation lifetime of winding coils prepared with polyamideimide (PAI), flexural PAI (nanosilica 5 wt%) and anti-corona PAI (nanosilica 15 wt%) wires were investigated. The winding coils were made of enameled wire with enamel thickness of 30~50 μm. The thickness and width of the rectangular copper wires were 0.77~0.83 mm and 1.17~1.23 mm, respectively. The insulation breakdown lifetime decreased with increasing ambient temperature regardless of wire type and winding coil diameter under an inverter surge of 1.5 kV/20 kHz. The insulation breakdown lifetimes of φ5 mm winding coils at 150, 200, and 250℃ were 11.38, 5.19, and 4.22 min respectively, and those of φ10 mm winding coils at 150, 200, and 250℃ were 11.32, 5.79, and 4.57min respectively. The winding coil diameter had little effect on the insulation lifetime.

• 대한전기학회논문지:전기물성ㆍ응용부문C
• /
• 제49권1호
• /
• pp.19-23
• /
• 2000

Partial discharges(PD)in air insulated electric power apparatus often lead to deterioration of solid insulation by electron bombardments and electrochemical reaction. The PD caused to reduce the life time of power apparatus and to increase power losses. Thus understanding and classification of PD patterns in air are very important to discern sources of PD. In this paper, PD in air by using statistical methods was investigated. We classified air discharges, corona, surface discharges and cavity discharges by Kohonen network. For classification of PD patterns, we used statistical operators and parameters such as skewness$(S^+,\; S^-),\; kurtosis(K^+, K^-),\; mean phase(AP^+, AP^-)$, cross-correlation factor(CC) and asymmetry derived from the mean pulse-height phase distribution$(H_{avg}(\phi))$, the max pulse-height phase distribution $(H_{qmax}(\phi))$, the pulse count phase distribution $(H_n(\phi))$ and the pulse height vs. Repetition rate $(H_q(n))$.

• 공업화학
• /
• 제32권2호
• /
• pp.219-223
• /
• 2021

Considering the current COVID 19 pandemic, herein, we developed a material that can be used to fabricate a device for checking the body temperature of a person who has been exposed to influenza or corona virus. This material was formed by mixing pluronic F127 (F127) with a polydiacetylene (PDA) vesicle, which was formed with 10,12-pentacosadiynoic acid. The color of the system started to change from blue to light purple at 37 ℃, finally turning reddish at 40 ℃. Thus, the developed material can be used to detect changes in body temperature, and thus, detect signs of fever. The mixing ratio of the PDA vesicle and F127 was an important factor for controlling the temperature at which the color change started. The results showed that the color change accompanied by the separation of the PDA vesicle with F127. We believe that this phenomenon plays an important role in reducing the conjugation length in the double and triple bond of PDA.

• 대한방사선기술학회지:방사선기술과학
• /
• 제44권2호
• /
• pp.123-131
• /
• 2021

In this study, safety education contents for medical radiation workers were produced based on Mixed Reality(MR). Currently, safety training for radiation workers is based on theory. This is insufficient in terms of worker satisfaction and efficiency. To address this, we created ICT(Information and Communication Technologies)-based MR radiation worker safety education content. The expected effect of Mixed Reality worker safety education content is that education is possible without space and time constraints, realistic education is possible without on-site training, and interaction between images is possible through reality-based 3D images, enabling self-directed learning Is that. In addition, learning in a virtual space expressed through HMD(Head Mounted Display) is expected to make education more enjoyable and increase concentration, thereby increasing the efficiency of education. A quantitative evaluation was conducted by an accredited institution and a qualitative evaluation was performed on users, which received excellent evaluation. The MR safety education conducted in this study is expected to be of great help to the education of medical radiation workers, and is expected to develop into a new educational paradigm as online education in accordance with Corona 19 progresses.

• Physical Therapy Rehabilitation Science
• /
• 제11권1호
• /
• pp.49-57
• /
• 2022

Objective: This study aims to conduct a comprehensive review of monitoring systems to monitor and manage physical function of community-dwelling elderly living alone and suggest future directions of unobtrusive monitoring. Design: Literature review Methods: The importance of health-related monitoring has been emphasized due to the aging population and novel corona virus (COVID-19) outbreak.As the population gets old and because of changes in culture, the number of single-person households among the elderly is expected to continue to increase. Elders are staying home longer and their physical function may decline rapidly,which can be a disturbing factorto successful aging.Therefore, systematic elderly management must be considered. Results: Frequently used technologies to monitor elders at home included red, green, blue (RGB) camera, accelerometer, passive infrared (PIR) sensor, wearable devices, and depth camera. Of them all, considering privacy concerns and easy-to-use features for elders, depth camera possibly can be a technology to be adapted at homes to unobtrusively monitor physical function of elderly living alone.The depth camera has been used to evaluate physical functions during rehabilitation and proven its efficiency. Conclusions: Therefore, physical monitoring system that is unobtrusive should be studied and developed in the future to monitor physical function of community-dwelling elderly living alone for the aging population.

• 한국항공운항학회지
• /
• 제30권3호
• /
• pp.65-75
• /
• 2022

This study tried to confirm whether the public's negative emotions such as fear and anxiety about corona virus infection caused by the spatial nature of the aircraft were alleviated due to factors of in-flight services focusing on hygiene and quarantine and further had a positive effect on the formation of Rapport between cabin crews and passengers. We also investigated the impact on passengers' perceptions such as Reliability and Safety which can be viewed as a new measure and standard of customer satisfaction in the Pandemic era through Rapport. A survey was conducted online in December 2021 for passengers with experience in boarding aircraft after the COVID-19 outbreak, and a total of 211 responses were used for analysis. As a result of the analysis of the data, it was confirmed that aircraft in-flight service had a positive (+) effect on Rapport, and Rapport between passengers and cabin crews had a positive (+) effect on passenger Reliability and Safety.

• 산업경영시스템학회지
• /
• 제45권4호
• /
• pp.79-85
• /
• 2022

Various non-face-to-face services are being activated due to the influence of the Corona 19 virus around the world. However, unlike the rapid development of delivery services, social awareness of delivery services is causing many problems. Therefore, in this study, we analyze the quality attributes of delivery services from the consumer's point of view, and based on the results, we try to derive a direction for service improvement. In this study, quality factors were established through interviews and surveys with actual consumers, and quality attributes were classified through the Kano model and Timko's customer satisfaction coefficient. "Attractive" is ('Ease of ordering, Accurate delivery to the designated place'), "One Dimensional" is ('Variety of payment methods, Accurate delivery on time, Accurate delivery of ordered food, Degree of non-deformation of packaging conditions, etc., Convenience of use time'), "Must be" is ('Kindness of the delivery person'), "Reverse" is ('provision of services, service response to order discrepancies'). This study has academic significance in that it compensated for the disadvantage of not being able to interpret the mathematical meaning of the Kano model with Teamco's customer satisfaction coefficient. It also has practical implications in that it provides an indirect clue to future improvement directions.