• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.217-224
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• 2003

ISO 14649 is a new interface (or language) standard for the CAD-CAM -CNC chain, currently under establishment by ISO TC184 SCI and SC4 . Upon completion, it will replace ISO 6983, so called M amp; G codes used for CNC since 1950' s. As the new language is being established, a new CNC controller called STEP-CNC (STEP­compliant CNC), capable of carrying out various intelligent tasks using the new language as an input, receives worldwide attention. In this paper, we present a distributed architecture for STEP-NC system based on the generic paradigm of STEP-NC. The STEP-NC system is consisted of 3 sub-systems: 1) CGS (Code Generation System), 2) CES (Code Edit System), and 3) ACS (Autonomous Control System). Also presented in this paper is algorithm for delta volume decomposition, a crucial algorithm for developing CGS. First method is based on the cutting tool and the second method is based on the turning features commonly used in the shop floor. An illustrative example is given to compare the two methods, and to illustrate usage scenario of the delta volume in the turning STEP- NC system under development.

• The Journal of Korean Physical Therapy
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• v.26 no.2
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• pp.104-109
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• 2014

Purpose: The purpose of this study was to understand the effect of aquatic exercise on balance and depression of stroke patients. Methods: For 12 participants with stroke, six members of the experimental group and six members of the control group were randomly selected and arranged. Proprioceptive Neuromuscular Facilitation (PNF) lower extremity aquatic pattern exercise was applied to the experimental group. On the other hand, participants in the control group performed PNF lower extremity pattern exercise on the ground. Both exercises were performed 30 minutes per day, five times per week, for a period of six weeks. Balance was assessed using the Berg Balance Scale (BBS) and Timed Up to Go test (TUG). Depression was measured using the Center for Epidemiologic Studies depression scale (CES-D). Results: As a result of comparison within groups, the experimental group showed significant difference for balance and depression after the experiment (p<0.05). In comparison between the two groups, the experimental group in which aquatic exercise was applied showed more significant change in balance and depression than the control group (p<0.05). Conclusion: According to the results of this study, aquatic exercise was proven to enhance the balance and decrease the depression of stroke patients.

• Korean Journal of Adult Nursing
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• v.13 no.4
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• pp.509-516
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• 2001

Purpose: The purpose of the study was to investigate the effects of anxiety, depression and self-esteem on the amount of smoking and nicotine dependency among woman smokers. Method: The convenience sample consisted of 121 unmarried woman smokers. The STAI, the CES-D Scale, the Self-Esteem scale and the FTQ were utilized to measure the level of anxiety, depression, self-esteem, and nicotine dependency. The amount of smoking was calculated based on the number of cigarette used. Results: Results indicated that woman smokers were depressed. Nicotine dependency was relatively low. Subjects had smoked a mean of 9.58 cigarettes per day. The level of depression influenced on smoking and nicotine dependency. Self-esteem influenced on the amount of smoking and anxiety influenced on nicotine dependency. Conclusion: The results of this study revealed that the amount of smoking of unmarried woman smokers was very high. Both the amount of smoking and nicotine dependency were affected by levels of depression. Education programs and campaigns are needed to prevent smoking of young adult women.

• Korean Journal of Adult Nursing
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• v.17 no.4
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• pp.573-582
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• 2005

Purpose: This study was to examine the effect of morning stretching on depression and motivation of rehabilitation for stroke patients. Method: Design of this study was noneqivalent control pre-test post-test design. Subjects were total 62 patients (Experimental: 30 subjects, Control: 32 subjects) being hospitalized for stroke in a national medical center. Measures were CES-D for depression and PAREMO for motivation of rehabilitation. Data were collected from 1st March to 30th July, 2004. Data have been processed using SPSS/WIN 11.0. Results: The results of this study were as followings: 1) Experimental group was showed lower level of depression than that of control group (t=8.934, P=.000). 2) Experimental group was showed higher motivation of rehabilitation than control group (t=-12.43, P=.000). Conclusion: As a result, it was confirmed that morning stretching which was intervened in this study was one of the nursing intervention that lowers the level of depression and promotes motivation of rehabilitation for stroke patients, that helps to improve their psychological and mental problems.

• Korean Journal of Adult Nursing
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• v.16 no.2
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• pp.297-305
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• 2004

Purpose: The purpose of this study was to investigate whether subjective health and social support influence depression directly or indirectly through self-control of the physically disabled. Method: A five-item General Health Short Form (SF-36) Health Survey Questionnaire was used to measure subjective health. Social support and self-control were measured by Social Support Questionnaire 6 and Mastery Scale. The level of depression was measured by CES-D (Center for Epidemiologic Studies Depression). Result: The level of depression was high (M=22.23). Seventy percent of the subjects were depressed. Subjective health and satisfaction with social support influenced self-control. Subjective health influenced the level of depression directly and indirectly, but self-control influenced the level of depression only directly. Conclusion: Subjective health and satisfaction with social support influenced depression through self-control in physically disabled persons. Therefore, when we manage these subjects' depression, it is seemed that program which lowers the level of depression by assessing and correcting these factors should be prepared.

• Korean Journal of Social Welfare
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• v.46
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• pp.210-235
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• 2001

This study purposed to standardize the Korean versions of the General Health Questionnaire, especially KGHQ-20 and KGHQ-30, through the evaluation of their reliability and validity. The two KGHQs, along with several other scales that measure psychological symptoms, were administered to 916 students and 102 chronically mentally ill patients at mental health hospitals in Korea. Both of the KGHQs were found to have high reliability based on test-retest correlation coefficients, internal consistency (Chronbach's ${\alpha}$) as scales, and item-total correlations for most of the items. The two KGHQ scores were shown to have high validity based on three methods of analysis; first, both KGHQ scores had highly significant correlations with most of other measures for psychopathology, such as SCL-90, CES-D, SDS, BAI, STAI; second, there were significant differences of the two KGHQ scores between the group of mentally healthy students and the group of chronically mentally ill patients; the validity of the KGHQ-30 was also derived from high sensitivity and specificity, which helped identify the best cut-off points: 15/16 for the KGHQ-30. The cut-off point for the KGHQ-20 was determined at 12/13 based on the mean scores and standard deviations of other scales as well as of the KGHQ-20.

• Korean Journal of Child Studies
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• v.32 no.6
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• pp.33-48
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• 2011

This study examined the relationships between place attachment to home, acculturative stress, and psychological adjustment among Korean youth in the United States. In particular, this study sought to better understand how place attachment to home and acculturation stress impacts upon youth's psychological adjustment, as measured by depression and self-esteem. The subjects consisted of 225 Korean youths (113 males and 111 females) residing in Michigan in the USA, of whom 47.6% attended middle school while 52.4% of whom attended high school. The instruments utilized were the acculturative stress scale (Sandhu and Asrabadi, 1994), the place attachment scale (Choi, Lee, & Han, 2009), Radloff's depression scale (CES-D), and Rosenberg's self-esteem scale. Hierarchical multiple regression analyses were used to assess the predictive effects of place attachment to home and acculturative stress on youth's psychological adjustment, alongside controlling demographic variables. The findings indicated that place attachment to home and acculturative stress impacted upon depression and self-esteem, as experienced by the youths examined. These results have implications for our understanding of the importance of both youths' place attachment to home and acculturative stress in the acculturation process.

• Korean Journal of Child Studies
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• v.37 no.6
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• pp.69-82
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• 2016

Objective: The main purpose of this study was to investigate the effects of preschooler temperament and maternal postnatal depression, depression, and parenting stress on preschooler externalizing problem behavior. Methods: The participants consisted of 98 preschoolers (ages 4-5 years) and their mothers. The subjects completed the following questionnaires: Emotionality, Activity, and Sociability (EAS), Edinburgh Postnatal Depression Scale (EPDS), Center of Epidemiological Studies Depression Scale (CES-D), Parenting Stress Scale, Korean Child Behavior Checklist for Ages 1.5-5 (K-CBCL 1.5-5), and Social Competence and Behavior Evaluation Inventory Short Form (SCBE-30). The data were analyzed by t/F tests, Pearson's correlation analysis, and multiple regression analysis. Results and Conclusion: First, preschooler emotionality temperament had positive correlations with attention problems and aggression. Second, maternal depression and parenting stress had a positive correlation with preschooler externalizing problem behaviors. Third, maternal parenting stress had an effect on preschooler attention problems. Forth, preschooler emotional temperament and maternal parenting stress had an effect on preschooler aggression.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.8 no.2
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• pp.189-198
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• 2001

The purpose of this study was done to identify the relationship between the level of pain and depression in patients with rheumatoid arthritis. The subjects for this study were 222 patients registered in H University Hospital Rheumatoid Arthritis Center, and the period of data collection was from July 20, 2000 to August 30, 2000. The research instruments used in this study were the Graphic Rating Scale of Pain and the CES-D for depression. The cronbach's ${\alpha}$ of the CBS-D scale was .89. Data analysis, was done by the SPSSWIN 10.0 program using descriptive statistics. The results are as follows. 1) The total pain score ranged from 0 to 147 with a mean score for pain in patients with rheumatoid arthritis of 72.64. 2) The total depression score ranged from 20 to 72 with a mean score of 39.86. 3) There was a significant difference in pain according to sex(F=5.26, p<.05) and education level (F = 3.59, p<.05). 4) There was a significant difference in depression scores according to sex (F=7 76, p<.05) and education level (F=3.02, p<.05). 5) The level of pain had a significant correlation with the level of education level(r=-.174, p<.01). The level of depression was significant correlation with the level of pain (r=.237. p<.01).

• Korean Journal of Occupational Health Nursing
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• v.18 no.2
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• pp.232-241
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• 2009

Purpose: This study was conducted to estimate the job stress and depression of female and male service workers and to determine the predictors influencing depression. Method: In this cross-sectional study, the data were collected from hotel, wholesale, and insurance companies. A total of 244 workers were recruited. Among them, 118 were female workers. A self-administered questionnaire was consisted of personal characteristics, job stress, daily life stress, social support, and depression. Depression was measured using a CES-D Korean version. Result: The average job stress of female workers was higher than that of male workers (P<.05). The average depression scores of female workers were higher than those of male workers, but the difference was not statistically significant. Multiple regression analysis showed that role conflict and low social support were significant predictors of depression in female workers. In male workers, role conflict, low social support, and under-utilization of abilities were significant predictors of depression. Conclusion: The results of this study suggest that depression of service workers may be prevented by creating a workplace environment that focuses on role conflict and social support. Also, health providers should consider the vulnerability of working women to job stress.