• KSBB Journal
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• v.6 no.3
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• pp.263-270
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• 1991

The optimal cell concentration and dilution rate for maximum ethanol productivity were obtained using dynamic simulation in cell recycled continuous bioreactor. The good control performance was observed using rule-based STR (self-tuning regulator) compared to conventional STR. Rule-base contained the scheme to implement the STR in an efficient on-off way and the scheme for the controlled variable to reach the optimal value in a short time. Since a mathematical model was used to analyze and estimate the changes of the state variables and the parameters, it was possible to understand the physical meaning of the system.

• Proceedings of the KIEE Conference
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• 1988.11a
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• pp.224-228
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• 1988

Extensive development work which was carried out by Gold Star Cable Co., Ltd. has led to the optimal design, manufacture and test of fully engineered cable system for 345 kV self- contained oil filled (OF) underground cable. Details of design criteria and of tests are given. development of 345kV OF cable results in sucessful operations for ultra-high voltage power transmission requirement.

• Journal of the Korean Data and Information Science Society
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• v.14 no.4
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• pp.1013-1021
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• 2003

Huffer and Park (2002) proposed a chi-squared test for multivariate structure. Their test detects the deviation of data from mutual independence or multivariate normality. We will compute the Rao-Robson chi-squared version of the test, which is easy to apply in practice since it has a limiting chi-squared distribution. We will provide a self-contained argument that it has a limiting chi-squared distribution. We study the accuracy in finite samples of the limiting distribution. We finally compare the power of our test with those of other popular normality tests in an application to a real data.

• 제어로봇시스템학회:학술대회논문집
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• 1989.10a
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• pp.711-714
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• 1989

Autonomous mobile robot Yamabico and his newly developed ultrasonic range finding module(URF) are described. Yamabico is a self-contained autonomous robot for in-door environment. It has a modularized architecture, which consists of master module, ultrasonic range finding module, locomotion module, voice synthesizer module and console. Newly developed ultrasonic range finding module has a 68000 processor and Dual-port memory for communication. It controls the ultrasonic transmitters and receivers and calculate the range distances for 12-direction, simultaneously within every 60 milliseconds.

• 제어로봇시스템학회:학술대회논문집
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• 1986.10a
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• pp.383-386
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• 1986

In this paper, ultrasonic range finding module for the self-contained robot, INHAE-1, is presented. This system is processed, using Z-80 microprocessor, a much of information on the surrounding condition in real time and is realted a sensor for many side data acqusition with a stepping motor. Also this system can obtain the more correct edge of the obstacle using the standard deviation of the least-square method. In this experiment, it gives more correct information to mobile robot of the blind guidance and improves the orientation of the robot path.

• Journal of the Korean Data and Information Science Society
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• v.15 no.2
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• pp.423-430
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• 2004

We provide the exact form of a Rao-Robson version of the chi-squared test of multivariate normality suggested by Park(2001). This test is easy to apply in practice since it is easily computed and has a limiting chi-squared distribution under multivariate normality. A self-contained formal argument is provided that it has the limiting chi-squared distribution. A simulation study is provided to study the accuracy, in finite samples, of the limiting distribution. Finally, a simulation study in a nonnormal distribution is conducted in order to compare the power of our test with those of other popular normality tests.

• Korean Journal of Childcare and Education
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• v.6 no.2
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• pp.117-133
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• 2010

The purpose of this research is to find out whether children's self-efficacy can be improved by sensory activities devised to encourage spirituality. The survey involved 36 children aged 4 to 5. To measure the subjects' self-efficacy, Jeon Inok(1996)'s tool was used. The 18 members of the experimental group attended a program which was dedicated to promoting spirituality by using sensory activities. The program was administered three times a week for four weeks, totaling 12 sessions, each of which contained a type of activity and lasted about fifty minutes. To the 18 members of the control group, the standard child care curriculum was applied. The levels of the subjects' self-efficacy were measured twice, both in the same way, before and after the children participated in the program. The finding reveals that the program which was designed to boost children's spirituality through sensory activities has positive effect on children's self-efficiency - cognitively, socially, emotionally, and physically. The self-efficiency level in the experimental group significantly increased by t=7.17(df=34, p<.001) compared to the control group. So, it can be said that the program dedicated to improving spirituality using sensory activities is more effective than the standard child care curriculum.

• Korean Journal of Adult Nursing
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• v.12 no.3
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• pp.452-462
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• 2000

The purpose of this study is to develop and evaluate the Self Efficacy Promotion and Exercise Program to prevent of obesity and cardiovascular diseases for the kidney transplant recipients. The subjects were selected randomly among the patients who underwent kidney transplantations at one major transplantation hospital in Seoul, Korea. This study ws carried out between November 23, 1999 and February 15, 2000. The subjects in this study consisted of 16 patients who had kidney transplantations between 1 month and 12 months ago prior to this study. They were all on steroids therapy and did not take any physical exercise regularly. The subjects received the self efficacy promotion and exercise program for 12 weeks which contained self efficacy promotion education and exercise program. The weight, body fat rate, exercise time and cardiopulmonary function were evaluated before the experiment and after the experiment. The results were as follows: 1. After the experiment, the weight was significantly decreased than that of before the experiment(p=.0001). 2. After the experiment, the body fat rate was significantly decreased than that of before the experiment(p=.0010). 3. After the experiment, the exercise time was significantly increased than that of before the experiment(p=.0002). 4. After the experiment, the absolute VO2 was significantly increased than that of before the experiment(p=.0008). 5. After the experiment, the relative VO2 was significantly increased than that of before the experiment(p=.0002). This study showed that the self efficacy promotion and exercise program was effective. So it would be expected that this self efficacy promotion and exercise program could be applied as an effective independent nursing intervention widely in prevention of obesity and cardiovascular diseases for kidney transplant recipients.

• Asian Oncology Nursing
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• v.2 no.1
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• pp.27-35
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• 2002

The Cancer Patients are rapidly growing and it became one of the main cause of death. Lately with the effect of Chemotherapy, drastically improved patients quality of life and also Prolonged Life of Cancer Patients. But the Chemotherapy not only Kill the Cancer cells but also harm to normal cells witch Cancer lots of side effect. This study was designed to identify the effectiveness of patient education to reduce side effect and help promote self care. The date was collected from October, 2001 to February, 2002 by questionary Survey Method. The subjects were 24 patients Who were and Anti Chemotherapy C University Hospital. Educated booklet contained what is Chemotherapy, what are the side effects, and to promote Self care, Pre test was given after 3-4 weeks re admission period. Analysis data was done by SPSS Program Paired t-test was used to differentiate Knowledge and difference of performing self care. Relationship in between Knowledge and promoting Self care was used Pearson Correlation. As the result of education, knowledge of self care and performance was drastically increased but the relationship in between knowledge of self care performed was not significant. Therefore it is proposed as follows: 1) Further research with experienced subjects to differentiate experience group and control group. 2) Education program need to be develop and standardize for anti cancer Chemotherapy patient. 3) During 6 cycle of Chemotherapy what is ideal number of in order to get the best result.

• Journal of Korean Academy of Nursing
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• v.48 no.2
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• pp.208-220
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• 2018

Purpose: The aim of this study was to analyze the effects of neurofeedback training for reducing stress and enhancing self-regulation in late adolescence to identify the possibility of use for nursing intervention. Methods: A nonequivalent control group pre-post quasi-experimental design was used. Participants were 78 late adolescents assigned to the experimental group (n=39) that received the neurofeedback training and the control group (n=39). Data were collected on heart rate variability (HRV) and skin conductance level (SCL) to assess stress-biomarker response. The questionnaire contained 164 items from: Positive and Negative Affect Schedule (PANAS), Symptom Checklist-90-Revised (SCL-90-R) and Self-regulatory Ability scale. The neurofeedback training was based on the general adaptation syndrome and body-mind medicine. The intervention was conducted in a total of 10 sessions for 30 minutes per session with high-beta, theta and sensory motor rhythm training on scalp at central zero. Results: There were significant difference in standard deviation of normal to normal interval (p=.036) in HRV and SCL (p=.029) of stress-biomarker response between the two groups. Negative affect (p=.036) in PANAS and obsessive compulsive (p=.023) and depression (p<.001) in SCL-90-R were statistically significant. Self-regulation mode (p=.004) in self-regulation ability scale showed a significant difference between the two groups. Conclusion: The results indicated that the neurofeedback training is effective in stress-biomarkers, psychoemotional stress response and self-regulation. Therefore, neurofeedback training using neuroscientific approach based on brain-mind-body model can be used as an effective nursing intervention for late adolescents in clinics and communities for effective stress responses.