• The Transactions of The Korean Institute of Electrical Engineers
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• v.60 no.6
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• pp.1097-1102
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• 2011

This paper proposes the registration information, the participation information for classifying demand resources participate in demand response program. Modeling demand resources from them, it evaluates values of demand resources. Specially assuming that ignore the loss in power system, they take a role as generation. This paper proposes how to evaluate demand resources' values. Case study shows that demand response operators schedule efficiently demand response program by using index of such as the registration information the participation information of demand resource.

• Korean Management Science Review
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• v.30 no.1
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• pp.167-181
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• 2013

We investigate the dynamic asset allocation problem under inflation risk when the wealth of an investor is constrained with minimum requirements. To capture the investor's risk preference, the CRRA utility function is considered and he maximizes his expected utility at predetermined date of the refund by participation in the financial market. The financial market is supposed to consist of three kinds of financial instruments which are a risk free asset, a risky asset, and an index bond. The role of an index bond is managing inflation risk represented by price process. The optimal wealth and the optimal asset allocation are derived explicitly by using the method to get the European call option pricing formula. From the numerical results, it is confirmed that the investments on index bond is high when the investor's wealth level is low. However, as his wealth increases, the investments on index bond decreases and he invests on risky asset more. Furthermore, the minimum wealth constraint induces lower investment on risky asset but the effect of the constraints is reduced as the wealth level increases.

• Korean Journal of Social Welfare Studies
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• v.42 no.2
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• pp.323-350
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• 2011

Work ability is a fundamental factor to determine who are the recipients of disability benefits or employment services. Disability Grade based on medical impairments is used as a work ability assessment in Korea, but it has been heavily criticized that it does not assess disabled person's work ability adequately. This study tried to find out an index which explains employment status of disabled persons the best among four work ability assessment indexes of disability grade, level of ICF activity limitations and participation restriction, level of help needed with daily activities, and self-assessed health status. As a result, the level of ICF activity limitations and participation restriction explained the employment status the best, and help needed for daily activities is the second, disability grade is the third, and self-assessed health status is the last. In conclusion, level of ICF activity limitations and participation restriction is the best work ability assessment in Disabled People Pension and Employment Policy for Disabled People. Therefore, it is the basic premise to develop a new work ability assessment index which consists of items in ICF activity limitations and participation restriction.

• Journal of Environmental Impact Assessment
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• v.1 no.1
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• pp.31-40
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• 1992

As the environmental concerns in Korea have shifted gradually from the environmental pollutions to the quality of life (QOL) enhancement, it has become increasingly important to implement comprehensive assessment of environmental quality as possible. This is the major reason to develop Environmental Assessment Index. This study focuses on indices development of factors in Environmental Impact Statement Preparation Regulation. Environment in this regulation is composed of natural environment, life environment and socio-economic environment, and it is composed of 22 factors. EAI(Environmental Assessment Index)studied in this research is integrated by 16 factors. It will contribute to public participation in Environmental Impact Assessment process and environmental policy.

• Physical Therapy Korea
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• v.25 no.1
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• pp.31-38
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• 2018

Background: Patient-centered care has recently become highly recommended, because it can improve health outcomes more effectively than problem-oriented care. The goal attainment scale (GAS) is one of the methods used for patient-centered care. It was originally developed as an outcome measurement tool, but it can also be used as a therapeutic intervention when setting quantifiable patient-centered goals. Objects: We sought to identify the effect of setting patient-centered goals on rehabilitation outcomes in patients with subacute stoke using GAS. Methods: Overall, 46 subjects with subacute stroke were divided into experimental ($n_1=23$) and control ($n_2=23$) groups. Subjects in both groups attended physical therapy sessions five times a week for four weeks. Those in the experimental group set goals using goal-attainment scaling. The mobility of each subject was evaluated using the Rivermead mobility index (RMI); daily-living activities, using the K-modified Barthel index (K-MBI); participation, using the Hopkins rehabilitation-engagement rating scale (HRERS); satisfaction, using the patient-satisfaction scale (PSS). Results: Subjects in the experimental group experienced more significant increases in RMI, HRERS, and PSS than those in the control group (p<.05, p<.05 and p<.01, respectively). After four weeks, GAS scores of the experimental group had increased more significantly than those of baseline (p<.01). Conclusion: Setting patient-centered goals is effective in improving the mobility and satisfaction of patients with subacute stoke. Setting patient-centered goals needs to be performed more frequently in clinical settings.

• Journal of Digital Convergence
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• v.14 no.12
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• pp.667-675
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• 2016

This study aims to investigate the effects of regular participation in physical activity on personal happiness by analyzing the "2014 National Leisure Sports Participation Survey". By using cross-tabulation and the binary logit model, it is found that there is a positive correlation between those two variables. The effect of positive affect on happiness index was found to be influenced by age, education level, occupation, income, marital status, appear. The results of the analysis of the relationship between the presence of sports facilities and the participation of regular physical activity using crosstab analysis and the analysis of physical activity showed positive relationship between two variables. Hence, it is expected that providing more opportunities to participate in sports programs can lead the public to more regular participation in physical activity.

• Korean Journal of Social Welfare
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• v.65 no.1
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• pp.5-31
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• 2013

The principle objective of this study is to determine factors affecting social participation for physically disabled people with musculoskeletal conditions (spinal cord injury, muscular dystrophy, osteogenesis imperfecta, rheumatoid arthritis) in South Korea using ICF relevant categories of the international classification index by WHO. The subjects of this study 352 people with physical disabilities, the data were collected using ICF component(body functions, body structures, activities and participation and environmental factors) and the relevant categories deprived from ICF core sets. The collected data were evaluated with descriptive analysis, ANOVA, correlation analysis, and multiple regression analysis. The results of this study can be summarized as follow. The mental function, Neuromusculoskeletal and movement-related functions, Genitourinary and reproductive functions, Skin and related structures, Learning and applying knowledge, General tasks and demands, and Mobility positively influenced social participation in people with musculoskeletal conditions. However individual factors and environmental factors didn't statistically significant affect on social participation. The implications of the study is to examine by ICF components of universal approach on disability study and utilized the relevant ICF categories as measurement tools.

• Korean Journal of Occupational Health Nursing
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• v.22 no.4
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• pp.324-333
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• 2013

Purpose: This study was conducted to compare the changes in the levels of liver enzymes after providing health education to workers. Methods: Among 909 electronics-manufacturing workers, 96 (10.6%) workers had abnormal liver functions. Of these, male workers were randomly assigned into either the health education experimental group (48 [52.2%]) or the control group (44 [47.8%]). Depending on the level of participation in the health education, workers in the experimental group were classified into the participation (32 [34.8%]) and non-participation groups (16 [17.4%]). Changes in the levels of liver enzymes were compared among three groups. Results: The changes in the levels of gamma-glutamyltransferase (r-GTP) in the participation, non-participation, and control groups were $-25.3{\pm}54.5$ IU/L, $-4.4{\pm}24.1$ IU/L, and $-5.3{\pm}38.8$ IU/L, respectively (p=.036). Aspartate transaminase, alanine transaminase, waist circumference, body mass index, daily alcohol consumption, weekly exercise, and changes in smoking habits in the 3 groups did not differ significantly. In the multiple linear regression analysis, the variable of education participation revealed a significant regression coefficient of -25.10 when the change in r-GTP levels was the dependent variable. Conclusion: A brief health education targeted towards the management of liver disease among workers improved r-GTP levels.

• Journal of the Korean Home Economics Association
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• v.20 no.4
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• pp.143-153
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• 1982

The objectives of this study were as follows: 1) To describe the group of selected disabled homemakers in terms of demographic and medical variables related to organizational activities in the home and family participation in household activities. 2) To identify those demograhpic and medical variables that were related to organizational activities in the home and family participation in household activities. 3) To identify relationship between organizational activities in the home and family participation in household activities. Questionnaires were given to the selected disabled homemakers living in Seoul. The sample was small(N=35) and it was not random; therefore generalizations could not be made to the population as a whole. Data were analyzed by mean, Kruskal-Wallis one-way analysis of variance by ranks, and Spearman rank correlation coefficients. Homemaker's organizational activities were measured by 16 items about physical and mental activities from Mumaw's Organizational Activities Index. Family participation in household activities was measured by 8 items about how often family members participated in two areas of household activities: house chores and extra-activities. The results were as follows: 1) The homemaker's higher organizational activities scores were associated with younger homemaker, higher the level of education, small households, and higher the economic status. The homemaker without children performed better organizational household activities. The homemaker with shorter the duration of disability performed better organizational activities. The homemaker who needed crutches for mobility performed better organizational household activities. 2) The homemaker who was younger, higher the level of education, with smaller households, and lower the economic level was helped by husband. Husband helped better the homemaker with shorter the duration of disability in household activities. 3) Factors affecting children's participation in disabled homemaker's house chores and extra-activities were the age of homemaker and the marital status. The homemaker was single and older, the children were more helpful. 4) Task standardization score was the highest among the factors of homemaker's organizational activities and families with a disabled homemaker participated more extensively than families with abled homemaker. 5) Significant intercorrelation was found between the dependent variables.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.37 no.3
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• pp.325-331
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• 2013

In this study, a complex eigenvalue analysis is implemented to verify the unstable mode of a brake system using ABAQUS software. The component participation factors and component modal participation factors are used to analyze the total contributions from each component and each component mode to a particular unstable system mode. This study shows that the 1.4-kHz unstable system mode comes from mode coupling between the 2nd nodal diametric mode and 3rd lateral axial mode (LAM) in the baseline model. A sensitivity analysis with a linking index is performed to prevent the mode coupling of the component modes. This linking index analysis shows the optimum mass loading position to move away the natural frequency of the 3rd LAM, which contributes to the unstable mode. Finally, a complex eigenvalue analysis is implemented with mass loading in the tie bar position, and no unstable system mode is generated in the low-frequency range (below 2 kHz).