• Proceedings of the Korean Operations and Management Science Society Conference
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• 1995.04a
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• pp.171-171
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• 1995

• Journal of Korean Institute of Industrial Engineers
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• v.23 no.4
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• pp.793-802
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• 1997

A sampling plan is presented for situations where sampling inspection is based on the quality characteristic of interest and items in rejected lots are screened based on a correlated variable. A cost model is constructed which involves the costs of misclassification errors, sampling and screening inspections. A method of finding optimal values of sample size, acceptance number and cutoff value on the correlated variable is presented, and numerical studies are given.

• Journal of Korean Society for Quality Management
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• v.27 no.1
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• pp.35-45
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• 1999

A process monitoring procedure using a correlated variable is presented when a lower specification limit is given on the performance variable. Every item is inspected with a variable correlated with the performance variable. When an item is rejected in the screening inspection, the process is checked for change using the mean and variance of measurements of the correlated variable for n preceding items including the rejected one. The performance variable is assumed to be normally distributed. A linear relationship between the performance and surrogate variables is assumed with normally distributed error term. The monitoring procedure is designed so that the prespecified outgoing quality can be attained.

• Child Health Nursing Research
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• v.12 no.3
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• pp.398-404
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• 2006

Purpose: To investigate the rate of questionable development in infants born prematurely and explore factors affecting developmental delays. Method: The participants were 46 infants born prematurely being seen in one of two urban health centers. A questionnaire and the HOME checklist were used to collect data, and the Korean Denver II developmental screening test was administered. Results: Of the participants 21.7% were classified as having questionable development. The only variable with a significant difference between the two groups was acceptance　in the HOME checklist. Psychosocial factors such as mothers' burden, depression, family functioning, and social support were not significantly different between the two groups. Conclusion: An early developmental screening test for prematurely born infants is needed. Also, the childrearing environment was identified as a significant factor in infants' development. These findings suggest that HOME score might be useful for identifying infants at risk for developmental delays and interventions for these infants will probably be more effective if their mothers can provide a more appropriate social environment. Further studies are suggested with larger samples.

• Journal of Korean Institute of Industrial Engineers
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• v.33 no.3
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• pp.349-354
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• 2007

A mixture experiment is a special type of the response surface experiment in which the factors are the components of a mixture, and the response variable is a function of the proportions of each component. When a new mixture product is developed, there are a large number of components, and the first objective of the experiment is to identify the ones that are most important by doing a screening experiment. We propose a method of screening mixture components using the correlation coefficients when t-tests cannot identify significant components.

• Journal of the Ergonomics Society of Korea
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• v.20 no.1
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• pp.45-62
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• 2001

This study suggests a genetic algorithm-based partial least squares (GA-based PLS) method to select the design variables for building a usability model. The GA-based PLS uses a genetic algorithm to minimize the root-mean-squared error of a partial least square regression model. A multiple linear regression method is applied to build a usability model that contains the variables seleded by the GA-based PLS. The performance of the usability model turned out to be generally better than that of the previous usability models using other variable selection methods such as expert rating, principal component analysis, cluster analysis, and partial least squares. Furthermore, the model performance was drastically improved by supplementing the category type variables selected by the GA-based PLS in the usability model. It is recommended that the GA-based PLS be applied to the variable selection for developing a usability model.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1991.10a
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• pp.441-441
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• 1991

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.3
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• pp.687-692
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• 2012

Colorectal cancer screening in adults aged 40 and over our country and understand the relationship between health behaviors and those affecting the implementation of a colorectal cancer screening was conducted to determine the parameters. National Health and Nutrition Examination Survey tool 4th secondary data were used. The main variable levels of public health, health-related awareness and behavior, food and nutritional status were surveyed about 12,528. Colorectal Cancer Screening adults aged 40 and over who target male and female study subjects were 4703. Compliance findings that are relevant to colorectal cancer screening variables include gender, age, residence, or taking supplements, Health Screening, whether history, such as cancer, respectively. Marital status, education level, household monthly gross income, private insurance, whether regular exercise was not associated with the. In order to increase colorectal cancer screening among the expanding free cancer screening and cancer screening performed a systematic test of the simple and effective education and publicity will be carried out.

• Health Policy and Management
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• v.16 no.1
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• pp.54-72
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• 2006

This study was conducted as the primary work to develop a customer relationship management (CRM) system to improve the performance of health screening programs. The specific aims of the study was to identify and classify the characteristics of the people who did not receive their health screening using decision trees and to propose management strategies according to their characteristics identified. The data on a total of 5,102,761 subjects of health screening provided by the National Health Insurance Program in the year of 2002 were used. The target variable was whether they underwent their health screening. The input variables included a total of 27. The SAS 9.1 version was used for data preprocessing and statistical analyses. SAS Enterprise Miner was used to develop the decision trees model. The decision trees identified the factors greatly affecting the health screening. In the non-disease group, the highest rate of non-examinees was characterized by: no experience of receiving a health screen, household's age, non-insured episode for the last one year, and patients' age. In the disease group, the one showing the highest rate of non-examinees was characterized by: no experience of receiving a health screening, no experience of going to public health center or midwife clinic for the last one year, and examinees' age. Developing CRM systems for health screening management taking into account the individual characteristics would be considerably helpful to increase the rate of receiving health screening.

• Journal of Korean Academy of Nursing
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• v.30 no.1
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• pp.160-170
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• 2000

The purpose of this study was to develop an explanatory model to predict factors related to continuous participation in the Pap smear screening among Korean women. A hypothetical model was constructed on the basis of Health Belief Model and extensive review of literature on the Pap smear screening. Exogeneous variables included in this model were knowledge, perceived sensitivity, perceived severity, negative and positive emotional responses and professional support from physicians and nurses. Endogeneous variables were threat to cervical cancer, perceived benefit of the Pap smear screening, perceived barrier, and the final outcome variable was continuous participation in the Pap smear screening. The hypothetical model was tested with an empirical study. The data was collected from 623 married women whose age range was 24 - 83 using a self-reported survey questionnaire which was developed by the researcher. It's Cronbach's alpha score ranged from .6478 to .9118. Data was collected at different locations in Seoul; a university hospital, a local health center, and apartment complexes. Data analysis was done using SPSS 7.5 WIN Program for descriptive statistics and LISREL 8.12a WIN Program for covariance structural analysis. In conclusion, threat, perceived benefit, perceived barrier, positive emotion and professional support had a significant direct effect on continuous participation in the Pap smear screening among Korean women. The results of this study also showed that perceived barrier had the most significant direct effect on continuous participation in the Pap smear screening while negative emotional response had the most significant direct effect on perceived barrier. It can be suggested that decreasing perceived barrier by reducing negative emotional responses may be the most effective strategies for increasing continuous participation in the Pap smear screening among married Korean women.