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The Effect of Wearing a Soft Knee Brace and Balance Training on Paretic Side Foot Pressure and Knee Joint Muscle Strength in Stroke Patients
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KILKENNY HOUNDS
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The NIST Station Night Club Fire Investigation: Physical and Computational Simulation of the Fire. Part 1
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A Study on Methodology for Evaluating Accessibility of Home Appliances in Quantification way
Sulki Lee,Dujeong Kim,Sangmin Kim,Seongil Lee 대한인간공학회 2013 대한인간공학회 학술대회논문집 Vol.2013 No.5
Concerns on the quality of life for the people with disabilities have surfaced as a serious issue from early 2000 in Korea. Although related laws requiring the accessibility in facilities, products, services, and information in public domains have been established as a result, little efforts have been made on the accessibility in electronic appliances. Studies on methodology to provide and evaluate the accessibility of electronic appliances such as the washers and the refrigerators are needed for the manufacturers to design and produce more accessible electronic appliances for people with disabilities. This study focuses on developing methodologies to examine the level of accessibility of various electronic appliances and establishing countermeasures to enhance the accessibility. A modified HTA(Hierarchical Task Analysis) was used to compare the user experiences components with user activities between the nondisabled users and users with disabilities. The HTA provided an evaluation scheme for quantitatively measuring the level of accessibility of each electronic appliance by calculating the rate of inaccessible tasks for the people with disabilities based on the tasks listed on the user manuals provided by the manufacturers.
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Reliable Network Design for Ethernet Ring Mesh Networks
Kyusang Lee,Dujeong Lee,Hyang-Won Lee,No-Gil Myoung,Younghyun Kim,Rhee, J-K K. IEEE 2013 Journal of lightwave technology Vol.31 No.1
<P>A Novel Design Optimization For Reliable Networking Is Investigated In Ethernet Ring Mesh Networks With The Itu-T G.8032 Ethernet Ring Protection Recommendation. Designing An Ethernet Ring Mesh Consisting Of Multiple Rings To Achieve The Maximum Network Availability Is An Np-Complete Problem. We Show That A Graph With Vertex Connectivity Equal To Or Greater Than Two Is A Sufficient Condition For Designing An Ethernet Ring Mesh. A Novel Design Rule With An Efficient Heuristic Algorithm Is Proposed To Find A Design Close To An Optimal Ethernet Ring Mesh In Terms Of Maximum Network Availability. Compared With An Optimal Network Design Algorithm With An Exponential Enumeration Search Cost, The Heuristic Algorithm Achieves Network Availability Nearly As High As That Of An Optimal Design At A Polynomial Cost.</P>
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A Study on Developing Methodology of Evaluating an Accessibility of Home Appliances
Jeongwon Lee,Eunyoung Roh,Dujeong Kim,Seulki Lee,Seongil Lee 대한인간공학회 2013 대한인간공학회 학술대회논문집 Vol.2013 No.10
Concerns about the quality of life and accessibility for people with disability have surfaced as a serious issue from early 2000 in Korea. Although, the laws has been established as a result, they are biased to information technologies and architectures. It rarely concerns about house appliances for everyday use. Therefore, the countermeasure that evaluates the level of accessibility of house appliances is urgently required. Thus, the purpose of this paper is to offer accessibility checklist, which can be used as a specific guidelines to improve the accessibility of home appliances, and to derive the quantitative score for service providers and designers. The laws relevant to accessibility and guidelines for the disabled are used to the evaluation items in checklist. However, the checklist have limitation that can"t address the level of accessibility in quantitative way. The AHP (Analytic Hierarchy Process) and QFD(Quality Function Deployment) methods are used to give weight on each group in checklist. This method can show the actual level of accessibility of house appliances. Moreover, service providers and product designers can inspect the level of accessibility of their product by themselves.
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이정원(Jeongwon Lee),김두정(Dujeong Kim),이슬기(Seulki Lee),이성일(Seongil Lee) 한국HCI학회 2013 한국HCI학회 학술대회 Vol.2013 No.1
장애인의 수가 점차 늘어감에 따라 접근성과 장애인들의 삶의 질 향상에 대한 관심이 고조되고 있다. 허나 현재까지 가전제품에 대한 접근성 평가가 제대로 이루어 진 바 없고, 평가 방법론에 대한 연구도 미진한 실정이다. 이에 본 연구에서는 가전제품의 접근성 평가를 위한 방법으로 HTA(Hierarchical Task Analysis, 계층적 과업 분석)를 제시하며 작성법과 작성예시를 함께 기술하였다. 이를 바탕으로 5 개의 장애유형을 대상으로 실제 관찰과 인터뷰를 실시한 후 일반인 사용자 HTA 와 비교를 통해 접근성 평가를 실시하였다. 본 논문은 향후 장애인을 대상으로 하는 접근성 평가의 정량화에 활용될 수 있을 것이다. Nowadays, The people with disability are increasing, and the concept of accessibility is perceived more important than before. However, there are few studies and methodologies to evaluate the accessibility for house appliances and cases that are regarded as properly evaluated. In this paper, we suggest a methodology, HTA(Hierarchical Task Analysis), describe how to make it and the results from accessibility test, based on it. We expect this can be used to quantify accessibility evaluation for house appliances.
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Yong-Ku Kong,Hyunjoon Park,Dujeong Kim,Taemoon Lee,Eunyoung Roh,Seulki Lee,Wenbin Zhao,Dae-Min Kim,Hyun-Sung Kang 대한인간공학회 2013 大韓人間工學會誌 Vol.32 No.6
Objective: The purpose of this study is to analyze the individual finger force between dominant hand and non-dominant hand and to investigate an effect of the individual finger on the total grip strength depending on dominant hand and non-dominant hand. Background: Many studies on the ratio of the grip force between dominant hand and non-dominant hand has been researched. While a 10% rule which is a ratio of the grip force between dominant hand and non-dominant hand has been applied in most studies, studies on the rate of the individual finger force between dominant hand and non-dominant hand have been insufficiently researched. Method: The experiment was preceded with 17 subjects (male, mean 25.8 ages). The individual finger force and total grip strength were measured using pliers being able to change the grip span from 45 to 80mm. Results: The difference of total grip strength between dominant hand and non-dominant hand is following 10% rule. However, the difference of individual finger force between dominant hand and non-dominant hand are not same as the difference of total grip strength. Especially in the case of grip span with 50mm, the differences between total grip strength, index finger, middle finger, ring finger, and little finger were 9.87±14.80%, 8.95±37.17%, 13.71±28.27%, 6.77±24.35%, 39.29±42.46%, respectively, with p=0.018 of statistical significance. Additionally, the results of regression analysis in 50 and 60mm of grip span showed that the difference in ring finger affected the most to the total grip strength; and the effects followed in order of index finger, middle finger, and little finger. Conclusion: Our study suggests that an effect of individual finger and grip span of pliers have to be considered when explaining the difference of the total grip strength between dominant hand and non-dominant hand. Application: This result is expected to be used for designing ergonomic hand tool.
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