• 전기의세계
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• v.39 no.8
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• pp.14-24
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• 1990

전문가 시스템 개발과정에서 완전한 경험적 규칙들을 얻는 것은 극히 어려운 작업이다. 전문가들이 확고한 경험적 규칙들을 얻기위해서는 오랜 시간이 걸리며, 그 얻어진 지식조차 확신할 수 없다. 또한 같은 분야 지식도 전문가들 사이에서 큰 차이를 보일 수 있다. 이러한 상황에서 전문가 시스템이 보다 완전한 지식베이스를 얻어, 주어진 영역에서 기존의 고도 전문가 수준의 전문성을 갖는 완전한 전문가로 활약하기 위해서는 지식 배제, 둘째 기존의 경험적 탐색 공간은 물론 보다 다양한 문제 해결 전략이 가능한 심층적 탐색공간을 제공하여 그로부터 새로운 문제 해결 지식을 학습하는 자기 학습기능이 필요하다. 본지에서는 이러한 자기학습 기능을 갖는 전문가 시스템의 알고리즘을 검토하였다. 그리고 끝으로 전력계통에 대한 적용예로서 전압제어 전문가 시스템을 설명하였다. 아직 전문가 시스템의 자기학습 기능의 구현은 초보적 연구에 머물고 있으며, 그들의 학습 능력조차 낮은 수준에 불과하다. 그러나 전문가 시스템 연구자들은 기존 전문가 시스템의 문제점과 그 적응능력의 중요성을 인식하고 있기 때문에 보다 진보된 개념(데이타들로부터 이론과 원리를 학습하는)이 도입된 자기학습 전문가 시스템의 적용연구는 앞으로 여러분야에서 폭넓게 이루어 질 것으로 기대된다.

• Journal of Convergence for Information Technology
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• v.11 no.5
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• pp.242-250
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• 2021

The subjects of this study were 514 people aged 65 and older who voluntarily participated in the senior welfare center in Seoul and Gyeonggi. The purpose of this study is to analyze the relationship between muscular strength, cognitive function, activities of daily living, depression variables of elderly people in a comprehensive evaluation. As for the data collection methods, were measured the upper and lower body strength, grip strength(left, right), cognitive function(mini-mental state examination, trail marking test, digit span test, stroop test), activities of daily living and depression was measured using a questionnaire. The results are as follows First, there was a statistically significant correlation between the elderly's muscular strength, cognitive function, daily living ability, and depression. Second, the statistical significance was found among all the variables as a result of the analysis of the elderly's integrated muscular strength, cognitive function, activities of daily living and depression. This study can provide basic data for successful aging and independent retirement life of the elderly by confirming the relationship between the elderly's muscular strength, cognitive function, Activities of daily living, and depression.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.11
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• pp.463-473
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• 2016

The purpose of this study was to investigate the relations between the cognitive functions, health conditions, activities of daily living, depression and sleep states among the elderly at care facilities. The subjects include 204 elderly people aged 65. The data collected were analyzed using descriptive statistics, the t-test, ANOVA, Pearson correlation, and hierarchical multiple regression. The findings show that the cognitive functions of the elderly at care facilities are related to their engagement in regular exercise, duration of residency, grade of care, lack of physical freedom, listening ability, state of teeth, urinary incontinence, activities of daily living, and state of sleep. Their cognitive functions had positive correlations with activities of daily living and negative correlations with state of sleep. Their cognitive impairment was significantly influenced by their engagement in regular exercise, duration of residency, grade of care, listening ability, ADL, IAD dependency, and sleep disorder. In short, the cognitive functions of the elderly at care facilities are highly related to their health conditions as perceived and felt by them. It is thus required to develop, apply, and consistently assess and manage cognitive rehabilitation training programs to provide interventions for the factors that influence their cognitive impairment.

• 대한공업교육학회지
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• v.31 no.1
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• pp.63-85
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• 2006

This study was performed to deduce the constituents of competence for the practical duty in technical high school's heat treatment and tensile test practice. In order to accomplish this purpose 1) the constituents of competence for the practical duty were deduced through the job analysis and the skill hierarchy analysis of heat treatment and tensile test, 2) the deduced constituents of competence for the practical skill performance were correspond to the Mager's five performance type, that is, discrimination (knowing when to do it, knowing when it's done), problem solving (how to decide what to do it), recall (knowing what to do, knowing why to do it), manipulation (how to do it) and speech (how to say it). The results of this study will be helped to the selection of learning objective, learning content, instruction and evaluation method.

• Archives of design research
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• v.17 no.2
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• pp.269-278
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• 2004

This research categorizes various icons that used in PDAs according to symbolization patterns, operating systems and support for color display. Since different icons vary in communication capacity I executed this research to verify it positively. In result, PDA loons were found to have different intuitive communication capacity according to its functions, symbolization pattern, operating system and use of color. \circled1 Icons which have similar object as ones that are used on desktop computer and icons with accurate, simple expression seems to have higher intuitive communication capacity among the icons categorized by functions. \circled2 Among the icons categorized by symbolization pattern, ones that express the action related to their functions have the highest recognition accuracy and longer delay before recognition. \circled3 Among the icons categorized by operating systems, ones that have concrete expression of object and a number of representation elements have higher recognition accuracy and longer delay before recognition. \circled4 Among the icons categorized by color and grayscale, ones with color have superior communication capacity due to additional stimulation although LCDs in most PDAs have limited color depth.

• The Journal of the Korea Contents Association
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• v.9 no.9
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• pp.151-162
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• 2009

As the aging population has increased, the silver generation is getting to account for the considerable percent of economic activities and becomes the main body of production and consumption. Although the economic activity of silver generation is increased, the development of silver contents for the leisure activities is still not revitalized. The serious silver contents and the easy-to-use interface are very important because the silver generation is relatively weaker than young people in perception, studying, and exercise, and is fragile in mobility and vitality. This paper suggests methods to develop sensory bicycle, gate ball, and mole game contents haying lower body exercise effects for the silver generation to utilize leisure and maintain health. Along with fun as games, functional design factors suitable to the cognitive ability and bodily activity ability of the silver generation were considered and through sensory intefaces that are easy for the silver generation to use and customized progressing methods complying with individual characteristics, it was attempted to induce continued interests and lower body exercise effects.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.378-381
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• 2012

본 논문은 실버세대의 치매예방을 위한 제스처 인식 기반 3D기능성 게임을 제안한다. 제안된 기능성 게임은 전신 제스처 인식을 이용함으로써 사용자의 두뇌 사용능력과 신체활동성을 증가시켜 치매예방 효과를 향상시킬 수 있도록 구성하였다. 기존에 개발된 제스처 인식 기술에 사용된 카메라들은 인식률과 가동영역이 한계적이다. 보다 안정적인 전신 제스처 인식을 위해 3D depth 카메라로부터 사용자를 인식하고 사용자의 관절 정보를 획득하였으며 관절의 움직임을 분석하여 전신 제스처를 인식하였다. 게임 콘텐츠로는 치매의 대표적인 원인인 뇌세포의 퇴화에 초점을 맞춰 기억력, 논리력, 산술능력, 공간인지능력 등을 훈련할 수 있도록 구성하였다.

• Journal of The Korean Association For Science Education
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• v.34 no.2
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• pp.55-62
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• 2014

This study is to reclassify the classifications or definitions of scientific literacy in scientific literacy researches since 1960s and grasp the classification trends of scientific literacy definitions. Sixteen articles have been selected among the articles that have been introduced in the two articles. Classification criteria are as follows: 1) "be learned," "competence," or "be able to function in society" as meanings of "literate," 2) "terms" or "description" as the ways of representing scientific literacy, 3) "singular structure," "hierarchical structure," or "parallel structure" as the inner structure of scientific literacy definitions. The results of this study are as follows: First, hierarchical structures in scientific literacy have almost always accompanied "terms" representing scientific literacy and also accepted the hierarchy between "be learned" and "competence," but not the definition of scientific literacy as functioning in society. All parallel structures in scientific literacy have accompanied the definition as functioning in society. And singular structure almost always appears in researches based on the views of scientific literacy in relatively recent times. Second, researches who have used "terms" as ways of representing scientific literacy have increased. Based on the results in this study, the meanings of scientific literacy have been emphasized in view of the ability of playing a role in a social context as well as learning and competence these days. To meet this movement in scientific literacy actively, science education community should get out of traditional teaching and learning scientific concepts and give emphasis on application in various context and social role of science learners.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.44-51
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• 2005

항만에 위치한 컨테이너 터미널은 수송, 하역, 저장의 기능을 고루 갖춘 대표적인 물류 시스템이다. 터미널이 충분히 제 기능을 수행하여 터미널 생산성을 향상시키기 위해서는 효율적인 레이아웃 설계가 필요하다. 터미널 레이아웃은 초기 터미널 설계단계에서 우선적으로 고려되는 의사결정 부분이며 터미널 운영 및 컨테이너 취급 비용에 중요한 영향을 미치는 요소가 된다. 본 연구에서는 개념 설계에서 구분되어지는 장치장의 배치형태 에서 수평 장치장을 모델로 하였다. 터미널 생산성에 영향을 미치는 이송능력과 적재능력의 효율적인 조정을 위하여, 블록의 배치와 사양에 따른 적재능력과 블록에 설치한 이적지점 개수에 따른 이송능력 대해 시뮬레이션을 통해 분석하고자 한다.

• Journal of the Korean Applied Science and Technology
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• v.38 no.3
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• pp.786-800
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• 2021

The subjects of this study were 463 people aged 65 and older in the senior welfare center in Seoul and Gyeonggi. The purpose of the study is to analyze the differences between physical fitness factors and cognitive functions, activities of daily living, instrumental activities of daily living, and psychological variables in the participation of the elderly in physical activities. Data ware analyzed by frequency analysis, reliability analysis, independent sample t-test and one-way ANOVA, and Pearson's correlation analysis, with SPSS 25.0 statistics program. The results of this study are as follows. First, there are statistically significant differences in physical fitness, cognitive function, activities of daily living, instrumental activities of daily living, and psychological factors such as depression and quality of life, depending on whether the elderly participate in physical activity. There were statistically significant differences in physical fitness, cognitive function, ADL, IADL, depression and quality of life, depending on the frequency of participation of older people in physical activity. A statistically significant difference in physical fitness appeared depending on the participation time of the elderly who participated in physical activity. Second, a study of the correlation between physical fitness and cognitive function, ADL, IADL, depression, and quality of life revealed a correlation for most factors. Based on these research results, it is necessary to develop a systematic arbitration strategy including physical activity for the successful aging of the elderly and the independent life of old age.