• Proceedings of the KIEE Conference
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• 2002.07a
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• pp.172-174
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• 2002

This paper proposes a new methodology for adequacy evaluation of composite power system considering an ambiguity of overload of transmission lines. Nodal arrival powers under considering an ambiguity of overload of transmission lines can be evaluated using the proposed method. Fuzzy set theory has been used in order to consider the permission level of overload of transmission lines. The problem of adequacy evaluation has been formulated using fuzzy linear programing. The effectiveness of the proposed method considering permissible overload of transmission lines has been demonstrated on the IEEE RTS.

• The Mathematical Education
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• v.55 no.3
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• pp.281-297
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• 2016

There has being developed elementary mathematics textbooks currently based on the 2015 revised mathematics curriculum. Vocabularies used in mathematics textbooks are mainly determined by the authors to develop textbooks. The purpose of this study was to investigate the adequacy of elementary school mathematics textbooks based on the unit structure and vocabulary, and to provide implications for elementary mathematics textbooks which is currently in development, in accordance with the 2015 revised curriculum. As a result, there were found some problems in the unit structure and vocabulary of elementary mathematics textbooks.

• Journal of the Korean Society of Food Culture
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• v.16 no.5
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• pp.492-503
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• 2001

The purpose of this study was to compare nutritional intakes of college students in Seoul and Yanbian by ethnic : Korean, Korean-Chinese, Chinese. The questionnaire were applied to individual interviewing method. Statisticai data analysis was completed by SAS 8.0 package program for t-test, ANOVA and multiple comparison. The results of this study were as follows. Average energy intake per day was high in Korean-Chinese. Nutrient Adequacy Ratio(NAR) was highest in iron and lowest in zinc. Mean Adequacy Ratio(MAR) score was $0.68{\sim}0.85$ for each group. The indexes of nutritional quality(INQ) were over 1.0 for most nutrients except 0.41 of zinc and 0.76 of calcium. Average energy intake ranked high in Korean-Chinese, Korean and Chinese.

• Journal of Families and Better Life
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• v.21 no.3
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• pp.157-169
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• 2003

The Purpose of this study was to explore the degree of caregiving stress in caring for dementia elderly according to objective resources, perceived adequacy resource and locus of control in homemakers. The subjects of this study were 141 married women who had cared for dementia elderly. A questionnaire was used as survey method. The data was analyzed by means of Cronbach $\alpha$, factor analysis, MANOVA, and Scheffe test. The main findings were as follows First, there was significant difference in the degree of caregiving stress in caring for dementia elderly according to objective resources. Second, the degree of caregiving stress in caring for dementia elderly was significantly different according to perceived adequacy resource. Third, the degree of caregiving stress in caring for dementia elderly differed significantly according locus of control.

• Journal of the Korean Home Economics Association
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• v.34 no.2
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• pp.71-84
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• 1996

The purpose of this study was to examine the factors that influenced level of housewives family leisure participation and their life satisfaction. So, this study analysed the effects of motivations, resources, and perceived adquacy of resources on family leisure activities and life satisfaction of housewives. Data for 389 housewives residing in Daegu were selected from using questionnaire. The major findings were : 1. Motivations for family leisure activities were classified in change-oriented, family-oriented, relaxational, and imitational types. 2. The participation level of family leisure activity showed significant differences by motivation for family leisure, resources for family leisure, and perceived adequacy of resources. 3. The level of life satisfaction showed significant differences by motivation for leisure, resources for leisure, and perceived adequacy of resources. And the variables which affected the level of life satisfaction independently were family-oriented motivation for leisure, space for leisure, perceived adequacy of burgets and space for leisure.

• Journal of Environmental Impact Assessment
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• v.29 no.2
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• pp.93-111
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• 2020

Health Impact Assessment (HIA) in Korea is conducted for specific development projects within Environmental Impact Assessment (EIA) system. However, as HIA is being carried out in the implementation stage of the development project, it sometimes has failed to take proper actions despite the significant adverse health impact. Considering an environment conflict regarding adverse health impact in developing industrial complex and the current application of HIA in EIA system, it is necessary to come up with an adequacy evaluation in the industrial complex development considering health impact. This study proposes an adequacy evaluation method considering health impact for the industrial complex development and embodies the method by applying it to actual cases. Referring to methodologies of US EPA's CalEnviroScreen 3.0 and US ATSDR's Public Health Assessment, this study proposed using indicators divided by community characteristic, background exposure and development burden as an adequacy evaluation method to consider health impact. Five indicators for community characteristic, three indicators for background exposure and seven indicators for development burden were selected through literature survey, and the weights for each indicator were calculated through Analytic Hierarchy Process's survey of experts related to HIA. Through a pilot application in the three government-led industrial complex development projects, the method was further elaborated by clarifying the evaluation data and subdividing the evaluation criteria for each indicator. Adequacy criteria of plan considering health impact could be presented in three ways to be linked to the government's policy stance on the industrial complex development criteria of total score, criteria of total score and community characteristic score, and criteria of total score and community characteristic allowed by development burden.

• Journal of Digital Convergence
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• v.14 no.3
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• pp.25-33
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• 2016

The author of this study conducted a survey with the expert groups who are currently handling hands-on works in convergence cities, ordering organizations, construction management companies, contractors, schools and research institutes, etc. The results of empirical analysis can be summarized as follows: First, there is no difference in distribution among the problems with position and the bidding system of private contracts. Second, there is relevance between position and the adequacy of current design VE ordering system, indicating different recognition. Third, there is no difference in distribution between organizations and the adequacy of current design VE ordering system. Fourth, there is difference in distribution between organizations and service price adequacy and there is difference in recognition by organization when organizations mutually recognize the service price adequacy. Fifth, there is difference in distribution between career and the necessity of the participating companies' qualification. Sixth, there is difference in distribution for the adequacy of career and the adequacy of participating companies' requirements. No problems have been found with the adequate service period according to private contract bidding system, but the necessity of participating companies' qualification and participating companies' requirements.

• Korean Journal of Radiology
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• v.22 no.12
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• pp.2082-2093
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• 2021

Objective: We conducted a systematic review and meta-analysis of the tissue adequacy and complication rates of percutaneous transthoracic needle biopsy (PTNB) for molecular analysis in patients with non-small cell lung cancer (NSCLC). Materials and Methods: We performed a literature search of the OVID-MEDLINE and Embase databases to identify original studies on the tissue adequacy and complication rates of PTNB for molecular analysis in patients with NSCLC published between January 2005 and January 2020. Inverse variance and random-effects models were used to evaluate and acquire meta-analytic estimates of the outcomes. To explore heterogeneity across the studies, univariable and multivariable metaregression analyses were performed. Results: A total of 21 studies with 2232 biopsies (initial biopsy, 8 studies; rebiopsy after therapy, 13 studies) were included. The pooled rates of tissue adequacy and complications were 89.3% (95% confidence interval [CI]: 85.6%-92.6%; I² = 0.81) and 17.3% (95% CI: 12.1%-23.1%; I² = 0.89), respectively. These rates were 93.5% and 22.2% for the initial biopsies and 86.2% and 16.8% for the rebiopsies, respectively. Severe complications, including pneumothorax requiring chest tube placement and massive hemoptysis, occurred in 0.7% of the cases (95% CI: 0%-2.2%; I² = 0.67). Multivariable meta-regression analysis showed that the tissue adequacy rate was not significantly lower in studies on rebiopsies (p = 0.058). The complication rate was significantly higher in studies that preferentially included older adults (p = 0.001). Conclusion: PTNB demonstrated an average tissue adequacy rate of 89.3% for molecular analysis in patients with NSCLC, with a complication rate of 17.3%. PTNB is a generally safe and effective diagnostic procedure for obtaining tissue samples for molecular analysis in NSCLC. Rebiopsy may be performed actively with an acceptable risk of complications if clinically required.

• IE interfaces
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• v.3 no.1
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• pp.13-20
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• 1990

The application of human-factor concept in developing a complex weapon system is important for system engineer to determine the system performance and reliability. This paper describes the evaluation procedure of human factors in the X-system wherein the evaluation result provides a better performance than the previous model in operatability and maintainability. The criteria used for the evaluation of a design adequacy of the X-system are based on the military human-factor standards.

• Proceedings of the KSR Conference
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• 2006.11a
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• pp.113-122
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• 2006

To investigate the adequacy of maglev train system to future urban transport environments, first we derived minimum necessity requirements of the new-transit system by analyzing the issues in the urban transit management and new needs of transportation customers. Then the conformity of Maglev train to the requirements was examined. With respect to this adequacy analysis, policy directions and agenda of the making practical use of urban transit Maglev system' is proposed.