• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.299-300
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• 2015

본 연구에서는 명지전문대학에서 시행되고 다양한 학습지원 프로그램을 프로그래밍 언어 수업에 적용하여 운영하였던 사례를 제시하고 학습자 의견 및 만족도를 조사하였다. 학습지원 프로그램의 참여는 자발적으로 이루졌으며, 분석 결과 전반적으로 학습자들은 학습지원 프로그램에 대해 만족하는 것으로 나타났고, 참여 학습자 그룹의 성적이 비참여 학습자 그룹보다 좋은 것으로 나타나 학습지원 프로그램이 학습에 도움이 됨을 알 수 있었다. 또한 참여 프로그램에 따라 학습자들의 참여 목적과 참여를 통해 얻은 좋은 점은 다른 것으로 나타났고 비참여 학습자들의 참여하지 않은 이유가 프로그램 운영 환경과 관련이 있는 것으로 나타나 학습지원 프로그램의 효과적인 활용을 위해서는 학습자의 학습 목적에 따라 참여 프로그램을 제안할 필요가 있음을 알 수 있었다.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2002.11a
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• pp.77-80
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• 2002

그룹에 속한 멤버들만이 통신하고자 하는 그룹웨어 응용프로그램이 보안상 중요한 문제로 인식되면서, 그룹키를 안전하게 생성하여 나누어 갖는 것이 필요하게 되었다. 본 논문은 어떤 그룹에 속한 모든 멤버들이 잘 알려진 두 멤버간의 Diffie-Hellman의 키 교환 프로토콜을 이용하여, 모든 메시지들을 안전하게 전달함으로써 그룹키를 나누어 갖는 새로운 그룹키 동의 프로토콜을 제안한다. 이 프로토콜은 완전 이진 트리를 이용하여 기존의 많은 양의 모듈러 멱승 연산을 일부 곱셈 연산으로 전환함으로써, 그룹키를 만드는데 있이 모듈러 멱승 계산량을 줄이는데 효과적이다.

• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.502-504
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• 2002

JavaSpace는 쉽고 단일화된 방식으로 분산 어플리케이션간의 객체공유, 중재 및 동적인 통신서비스를 제공한다. 현재 Javaspace글 이용한 응용 프로그램들이 계속적으로 등장하고 있다. 기존의 JavaSpace는 중앙 집중적인 클라이언트/서버 방식으로 구현되었기 때문에 성능이 제한적이다. 본 논문에서는 그룹 참여자들간의 상태를 일관성 있게 유지시켜주는 그룹통신 시스템을 이용하여 분할가능한 분산환경에 적합한 복제된 Javaspace 시스템을 설계하였다. 복제된 JavaSpace 시스템을 이용하는 웅용 프로그램들은 효율성과 확장성을 증대시킬 수 있다.

• Journal of the Korea Convergence Society
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• v.13 no.2
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• pp.55-65
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• 2022

The purpose of this paper was to investigate the relationship between cybersickness symptoms and visual function and to determine whether visual perception training is effective in reducing symptoms of cybersickness. The study subjects were healthy adult males who experienced the same virtual reality program for 15 minutes. Afterwards, the VR satisfaction score and cybersickness level were measured and classified into a comfortable virtual reality program viewer group (CVR group, 20 people) and an uncomfortable virtual reality program viewer group (UVR group, 20 people). Visual function test was performed on all subjects, and the vision therapy training program was applied to the UVR group once a week for 40 minutes 12 times, and then the visual function and SSQ questionnaire were re-evaluated. Subjects with diplopia were 55% in the UVR group and 5% in the CVR group, which was significantly higher in the UVR group, there were differences in stereopsis, exophoria, near point convergence(p<.01) and vergence function(p<.001) between the two groups. After vision therapy, changes in SSQ, stereopsis, near point convergence, and vergence function of UVR user group were positively changed(p<.01). Therefore, cybersickness symptoms are related to visual function, it seems that the vision therapy can be used as a way to alleviate the symptoms of cybersickness.

• Journal of the Korean Applied Science and Technology
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• v.35 no.1
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• pp.306-315
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• 2018

The purpose of this study was to investigate the effects of football talents program on body composition, fitness, self-control and self-efficacy in elementary school students The subjects were eighty males students volunteers, composed of the lower group (n=40; 1-3th grade) and senior group (n=40; 4-6th grade). The test data were analyzed by paired t-test, independent t-test and two-way repeated measures ANOVA. The alpha level of p<0.05 was set for all tests of significance. The results of the study in the both group were as follows; The muscle mass in the body composition had significantly increased, and there was a significant difference between groups. Body fat mass had significantly decreased. Fitness(cardiorespiratory endurance, muscular strength, flexibility, power and agility) had significantly increased, cardiorespiratory endurance, muscular strength, and power was a significant difference between groups. Self-control and self-efficacy had increased significantly in both groups. Therefore, the football talents program had a positive effects on body composition and physical fitness levels of elementary school students. And it seems to be effective in increasing self-control and self-efficacy.

• Journal of Agricultural Extension & Community Development
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• v.2 no.1
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• pp.55-60
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• 1995

본 연구의 목적은 지도교육자의 직무가 컴퓨터 경험, 지식, 태도, 사용에 미치는 영향을 구명한 후 지도 교육 시스템에서 컴퓨터 연수 프로그램을 직무에 따라서 그룹화하여 실시하는 것이 적절한 방법인지 그 타당성을 조사하는데 두고 있다. 연구방법은 중다변인변량분석(MANOVA)에 의해 이루어졌다. 연구 결과에 의하면 이들간에는 통계적으로 유의한 관계성이 있다고 나타나며, 따라서 컴퓨터 연수 프로그램을 설계시 직무는 고려해야 할 중요 변인으로 여겨진다. 한편 직무에 따른 참가자들의 그룹화는 쉽게 이루어 질 수 있으므로 실질적인 측면에서도 설계자들이 고려해야 할 요인으로 여겨진다.

• The Journal of the Convergence on Culture Technology
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• v.10 no.3
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• pp.533-539
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• 2024

This study investigated the effects of two exercise programs, which include exercise methods to increase muscle strength, balance, and endurance, on the balance ability and fall efficacy of elderly people, and the differences in effects according to preference. Twenty-one elderly people were divided into a group using assistive devices using elastic bands (Experimental Group 1) and a group using the body (Experimental Group 2) and an exercise program was conducted for 4 weeks. The single leg stand (SLS) and functional reach test (FRT) were used to evaluate the elderly's balance ability, and the fall efficacy scale (FES) was used to evaluate the degree of fear of falling. A pre-evaluation was conducted after a 2-week integrated exercise program, and a post-evaluation was conducted after applying the exercise program for 4 weeks. In the study results, within-group SLS, FRT, and FES analyzes all showed statistically significant improvement in the post-assessment compared to the pre-assessment. However, there were no significant differences in the comparison between groups regarding exercise program and between groups according to preference. In conclusion, in order to increase the balance ability and fall efficacy of the elderly, an exercise program must be applied, and it is necessary to use a program that is easy to apply and includes exercise methods that the elderly can easily perform.

• Therapeutic Science for Rehabilitation
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• v.4 no.1
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• pp.53-62
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• 2015

Objective : This study aimed to evaluate the effects of multisensory and Motor-Based group activity program on the problem behaviors and burden of care in persons with dementia. Methods : Five persons with moderate to severe dementia and significant problem behaviors, received 4 weeks of multisensory and Motor-based group activity program. The Neuropsychiatric Inventory was employed in the pretest and posttest. Analysis was performed using SPSS and including Wilcoxon signed rank test. Results : Participants' average problem behavior scores decreased from 70 in the pretest to 38 after program. Mean scores of burden of care decreased from 47 to 29. Conclusion : Multisensory and Motor-Based group activity program can be an effective method to decrease problem behaviors and burden of care for older people with dementia.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10c
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• pp.87-89
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• 1999

기존의 클라이언트/서버 응용 프로그램은 공유 자원을 서버에서만 관리하므로 자원의 가용성(availability)이 떨어지고, 클라이언트의 수가 많아질수록 서버의 과부하로 인해 시스템 전체의 성능이 저하되는 등의 단점을 내포하고 있다. 이는 응용 프로그램을 사용하는 대다수의 클라이언트가 소수의 서버에만 의존하는 시스템 구조에서 비롯되는 문제라고 할 수 있다. 이러한 문제점들을 해결하고자 고성능의 고가형 서버를 도입하거나, 서버의 작업을 클라이언트에 분배하는 등의 연구가 있었지만, 문제의 근본적인 해결책이 될 순 없었다. 본 논문에서는 이러한 문제점들을 해결하고자 그룹 통신을 이용한 서버리스 분산 응용 프로그램을 제안하고, 간단한 문서관리 분산 응용 프로그램을 실제로 구현함으로써 서버리스 응용 프로그램들의 특성들을 소개하고자 한다.

• Korean Journal of Environment and Ecology
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• v.35 no.4
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• pp.424-434
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• 2021

People who face retirement in aging society experience changes in resilience and psychological depression. As the baby boomer generation, which has played a central role in Korea's economic and social sectors, begins retiring, interest in their post-retirement lives has also increased. Thus, this study investigates the effects of a forest healing program using forest healing factors of ecological forests on the resilience and depression of baby-boomer retirees. This experiment divided 58 subjects in the baby boomer generation into three groups and examined differences among the groups. The result showed that the subjects in the forest healing program group (FHPG) had a very significant increase in resilience and a statistically significant decrease in depression compared to those in the forest healing program non-participation group (FHNG) and the daily life group (DLG). Therefore, it can be said participating in the forest healing program is more effective for retirees than voluntary forest activities. The results of this study can be used as basic data for research on the resilience and depression of retirees.