• 대한통합의학회지
• /
• 제12권1호
• /
• pp.49-62
• /
• 2024

Purpose : This study was conducted to compare two non-face-to-face exercise interventions depending on whether mobile applications and wearable exercise aids are used to find out which interventions are more effective in improving senile sarcopenia. Ultimately, it was conducted to provide basic data for developing non-face-to-face intervention methods to improve sarcopenia. Method : In this study, 18 elderly sarcopenia and possible sarcopenia aged 65 or older were randomly assigned to the digital and self-exercise intervention groups. The digital exercise intervention group performed eight exercise programs with mobile applications and wearable exercise aids to record and manage the elderly performing the programs in real time. And the self-exercise intervention group performed the same program on its own as implemented in the digital exercise group. The intervention was applied for 8 weeks, and before and after the intervention, sarcopenia evaluation and physical function evaluation were performed. Results : In the digital exercise intervention group, arm muscle mass, skeletal muscle index, SPPB, 5TSTS, and BBS were improved, and in the self-exercise intervention group, grip strength, SPPB, 5TSTS, and BBS were improved. Conclusion : It was confirmed that both groups are effective in improving physical performance and physical function, the digital exercise intervention is effective in improving muscle mass and self-exercise intervention is effective in improving muscle strength. Therefore, this study proposes to apply intervention methods separately according to the indicators to improve and prevent sarcopenia, and also simplify the instructions of applications used to improve sarcopenia and to create an environment where users can be trained regularly on how to use it. And, In the future, studies for the development of devices to be designed to help non-face-to-face exercise interventions or studies on the differences between face-to-face and non-face-to-face exercise interventions should be conducted in terms of the effect of improving sarcopenia.

• 실천공학교육논문지
• /
• 제13권2호
• /
• pp.305-320
• /
• 2021

코로나19는 직업능력개발 분야의 교육훈련 환경을 크게 변화시켰다. 상대적으로 집체훈련 비중이 큰 직업능력개발훈련은 일부 훈련과정을 온라인 방식으로 전환하여 온라인과 오프라인을 병행하는 학습 방식이 직업능력개발훈련 현장에 실현되고 있다. 본 연구는 이러한 상황에 주목하여 기존의 집체 방식의 직업능력개발훈련을 대체할 수 있는 비대면 원격훈련시스템을 구축하기 위한 방안을 모색하는 데 그 목적이 있다. 이를 위해 대학, 공공 고등직업훈련기관, 민간 직업훈련기관 등의 학습자들을 대상으로 비대면 교육 경험을 조사하여 교육환경과 교육목적이 상이한 학습자들의 비대면 학습경험을 분석하였다. 이를 토대로 비대면 교육을 위한 원격훈련시스템 구축 방안의 초안을 구성하여, 비대면 원격훈련시스템 초안에 대한 델파이 조사를 통해 비대면 교수학습 전략, 학습 및 운영 지원 방안 등 원격훈련시스템 구축안을 제안하였다.

• International Journal of Internet, Broadcasting and Communication
• /
• 제15권1호
• /
• pp.195-202
• /
• 2023

This study is a comparative survey study conducted to explore the differences in learners' learning flow and learning satisfaction according to the non-face-to-face class operation methods implemented at universities. After implementing different class management methods for the same subject taught by the same instructor non-face-to-face for 15 weeks, each learning flow and learning satisfaction were compared and analyzed, and the collected data were analyzed with IBM SPSS 21.0. As a result of the study, learning flow was high in the order of lectures using real-time ZOOM and recorded lectures using self-studio(3.41±0.91, 3.28±1.01), and learning satisfaction was high in the order of lectures using real-time ZOOM and lectures using the automatic recording system of classes(3.40±0.80, 3.30±0.74). The item with the lowest score was the PPT audio recording lecture in both areas of learning flow and learning satisfaction(2.72±1.04, 1.73±1.04). Considering that system errors such as sound in the smart lecture environment operated for the first time in this study affected the research results, it is suggested that future research should be conducted by supplementing the corresponding part.

• International Journal of Advanced Culture Technology
• /
• 제9권3호
• /
• pp.100-105
• /
• 2021

This study examines the effectiveness of the study through a case of PBL(problem-based-learning) class conducted in a balanced culture course called at 00- University in the second semester of 2020. The effects of learning are as follows: First, PBL(problem-based-learning) has sufficient active interaction between the teacher and the learner. In the face of prolonged non-face-to-face learning, the PBL teaching method has sufficient interaction between the professors-learner and the learner. Second, PBL learning can actively utilize various problems that fit the characteristics of the subject and actively utilize the process of role sharing and collaboration. By presenting various problem situations suitable for the subject, students will be able to share roles individually or as a team, and fully experience the process of collaboration and discussion in the process of investigating the data. Third, critical perceptions of problem situations can be extended. In modern times, a variety of problem situations arise and critical perceptions of them must be fully learned. In a mass production and mass consumption society, students should develop the ability to blindly recognize and distinguish between real and fake information in a flood of information. The limitations identified in this class case are, first, the nature of the subject, "Understanding Culture and Philosophy," which makes it possible to discuss the global cultural phenomenon, but it should be discussed in terms of philosophy. Second, it is not easy to work as a team on non-face-to-face online. Nevertheless, PBL is a very effective method of learning in which active interactions and learning activities take place between professors and students, whether face-to-face or face-to-face online learning.

• 융합정보논문지
• /
• 제12권4호
• /
• pp.95-102
• /
• 2022

본 연구의 목적은 코로나 19 상황에서 대면과 비대면에 수업에 따른 간호대학생의 심리적 상태를 비교 하고자 실시되었다. 대상자는 임의표출 하였으며, 분석방법은 두 집단의 동질성 검정은 χ2-test로 확인하였고, 두 그룹 간의 종속변수 점수의 차이는 independent t-test로 분석하였다. 연구결과 대면학생과 비대면학생의 우울정도는 대면학생이(8.16±9.48) 비대면학생(7.08±8.38)보다 높은 것으로 나타났으며, 불안정도도 대면학생이(8.20±9.93) 비대면학생(6.53±8.23)보다 높은 것으로 나타났으나 통계적으로 유의하지 않았다(t=1.143(.254), (t=1.728(.085)). 본 연구결과 대면과 비대면수업 참여학생을 위한 심리적 완화를 위한 프로그램 마련의 기초가 되었으며, 향후 사회적 거리두기가 장기화되는 상황에서 대학생의 심리적 우울과 불안에 대한 반복연구를 제언한다.

• 한국통신학회논문지
• /
• 제30권6C호
• /
• pp.570-576
• /
• 2005

얼굴 인식 분야에서 포즈의 변화는 인식률을 저하시키는 가장 심각한 문제로 알려져 있다. 본 논문에서는 이러한 포즈가 변화된 얼굴 영상에 대한 인식률을 높이기 위한 전처리 단계로 정면이 아닌 얼굴 영상을 정면 얼굴 영상으로 변환시키는 방법을 제안한다. 제안한 방법은 PCA 계수를 선형 변환 시키는 변환 행렬을 사용되는데 이 변환 행렬은 PCA 계수 사이의 선형적인 관계를 이용하여 구한다. 제안된 방법은 PCA/LDA를 이용한 얼굴 인식 알고리즘으로 검증하였으며, 실험 결과 제안된 방법이 얼굴 인식률을 $20\%$ 정도 향상시킴을 알 수 있었다.

• 대한통합의학회지
• /
• 제9권4호
• /
• pp.225-235
• /
• 2021

Purpose: Since coronavirus disease 2019 (COVID-19) spread around the world, non-face-to-face services have emerged as the new normal. The functioning of children with developmental disabilities and cerebral palsy improves when parents, therapists, and institutions cooperate. We aimed to investigate the difficult environment of pediatric physical therapy caused by COVID-19, and grasp parents' perceptions of home exercise programs. We intend to design home exercise programs for pediatric treatment in the future and create a non-face-to-face pediatric rehabilitation service system based on our findings. Methods: The first survey was conducted on 30 parents who had children with cerebral palsy and developmental disabilities. It was produced after consultation with relevant experts and discussion with the research team, based on a survey conducted in a previous study. The second survey was produced by revising and supplementing the opinions of parents who completed the first survey and consulting experts. Thereafter, an online survey was conducted on 118 parents who had children with cerebral palsy and developmental disabilities. Results: 61.01 % of the parents reported that they were anxious or afraid for their children to be treated for infectious diseases. 83.90 % of the parents reported that the role of parents had increased. 50.00 % of the parents complained of a lack of skill. 85.59 % of the parents reported that they needed a home exercise program provided by the organization. As a non-face-to-face exercise management method, 35.59 % of the parents wanted a real-time video recording electronically mailed to them, and 34.75 % wanted real-time education using video conferencing programs such as zoom. Conclusion: The threat of COVID-19 has further emphasized the importance of social cooperation and management, leading organizations to enter a new era of non-face-to-face rehabilitation services. It is necessary to collect and systematize related studies to reflect more diverse opinions and improve the perceptions of therapists and parents.

• 스마트미디어저널
• /
• 제11권8호
• /
• pp.65-72
• /
• 2022

COVID-19로 인해 대면으로 이루어지던 상담 방식이 비대면으로 진행되면서 비대면 상담의 중요성이 높아지고 있다. 비대면 상담은 온라인으로 언제 어디서든 상담할 수 있고, COVID-19에 안전하다는 장점이 있다. 그러나 비언어적 표현의 소통이 어려워 내담자의 마음을 이해하기 어렵다. 이에 비대면 상담 시 내담자의 마음을 잘 알기 위해서는 텍스트와 음성을 정확하게 분석하여 감정을 인식하는 것이 중요하다. 따라서 본 논문에서는 텍스트 데이터는 자음을 분리한 후 FastText를 사용하여 벡터화하고, 음성 데이터는 Log Mel Spectrogram과 MFCC를 사용하여 각각 특징을 추출하여 벡터화한다. 벡터화된 데이터를 LSTM 모델을 활용하여 5가지 감정을 인식하는 다중 감정인식 모델을 제안한다. 다중 감정인식은 RMSE을 활용하여 계산한다. 실험 결과 텍스트와 음성 데이터를 각각 사용한 모델보다 제안한 모델의 RMSE가 0.2174로 가장 낮은 오차를 확인하였다.

• 지식경영연구
• /
• 제21권2호
• /
• pp.119-135
• /
• 2020

Owing to pandemic (COVID-19), the traditional face-to-face education method has been changed to the non-face-to-face real-time online education methods. Using a real time-based video conference system, synchronous education can be adopted by face-to-face class easily. Specially, it is very important to minimize the difference in learning effects between face-to-face and non-face-to-face in Entrepreneurship education. In this study, in order to derive the factors that affect the satisfaction of learners in synchronous online education, authors collected data from learners taking a synchronous entrepreneurship course. Through previous research, learned the reality of education and the composition of lessons. Spatiotemporal effectiveness, mentor ability, and educational environment influence learning satisfaction. PLS-SEM results revealed that it was confirmed that only spatiotemporal effects affect learner satisfaction. However, the education environment (fluent operation and convenience of function use of real-time based online conference system) effect teaching presence, class structure, and spatiotemporal effects. Through this research, we hope to provide theoretical and practical support for developing effective teacher activities, proper lesson structure, convenient function of the conference system, and learner-centered online learning environment when developing synchronous online classes.

• 한국컴퓨터정보학회논문지
• /
• 제28권9호
• /
• pp.93-104
• /
• 2023

현대 사회의 서비스 방식은 대면 방식보다 비대면 방식을 선호하는 추세이다. 하지만 신발과 같이 상품을 추천하는 서비스는 대면 방식의 서비스가 불가피하다. 본 논문에서는 비대면 서비스를 목적으로 자동으로 발의 사이즈를 측정하고, 측정 결과를 기반으로 신발을 추천하는 시스템을 제안한다. 제안방법의 성능을 분석하기 위해 사이즈 측정 오차율과 추천성능을 분석하였다. 추천성능 실험에 사용한 방법은 총 10가지이고, 이의 방법 중 가장 좋은 성능을 보이는 추천 방법을 시스템에 적용하였다. 오차율에 대한 실험결과, 사이즈 관련 오차가 작음을 알 수 있었고, 추천성능에 대한 실험결과, 추천에 대한 유의한 결과를 도출할 수 있었다. 본 논문에서의 제안방법은 실험실 수준으로 향후 실제 환경으로 확대 적용할 필요가 있다.