• Child Health Nursing Research
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• v.23 no.1
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• pp.111-116
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• 2017

Purpose: This study was done to examine whether depression, self-esteem, and social support influence suicidal ideation among college students. Methods: Using a correlation study design, participants were recruited from two universities selected by convenience sampling. Data were collected from June 1, to August 31, 2014 from the 206 participants included in the study. The data were analyzed using SPSS / Win 18.0. Results: There was a significant correlation between depression, self esteem, social support, and suicidal ideation. Suicidal ideation was negatively correlated with self-esteem (r=-.64, p<.001) and social support (r=-.45, p<.001), while, suicidal ideation showed a positive correlation with depression (r=.69, p<.001). The significant predictors related to suicidal ideation were depression, self-esteem, and social support. Conclusion: Findings indicate that sensitively assessing depression in college students and efforts to reduce depression can reduce the risk of suicide. Self-esteem and social support of college students are also important resources for suicide prevention.

• Proceedings of the KIEE Conference
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• 2008.04c
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• pp.128-130
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• 2008

This paper presents an algorithm to design a self-tuning proportional-integral(PI) speed controller for servo systems. The control gains are calculated with estimated system parameters, i.e. inertia and viscous damping which are estimated by initial operation. The simulation and experimental results show the feasibility and performance of the proposed algorithm.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2004.11a
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• pp.175-178
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• 2004

Power supply technique for electrodeless lamps, especially self-oscillation method, is presented in this paper for Endura of Osram. The power supply uses different method for high efficiency at high frequency operation compared to the conventional method using saturable transformer. Exact parameter tuning using simulation is suggested for effective design for real applications.

• 제어로봇시스템학회:학술대회논문집
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• 1988.10a
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• pp.246-249
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• 1988

In this paper, a new design technique which uses weighted least-sqare approach for the solution of the pole assignment problem is represented. This technique maybe used to assign some closed loop poles to places which reduce the large system input and output variance due to near pole-zero condition. The least-square approach is also applied to the design of servo self-tuning controller with integrator.

• 제어로봇시스템학회:학술대회논문집
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• 1995.10a
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• pp.69-70
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• 1995

This paper considers the applications of cellular automata in order to design self-organizing artificial neural decision systems such as self-organizing neurocomputer circuit, machines, and artifical life VLSI circuits for controlling mechanical systems. We consider the L-system and show the results of growth of plants in artificial life.

• Journal of the Korean Society of Safety
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• v.12 no.1
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• pp.129-132
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• 1997

The effectiveness of an ensuring the facility safety depends on the ability to find abnormal part(s) and remove that part(s). This requires the knowledge of that machine and ability to recover that machine. In this paper, it is discribed how to design the fuzzy based self organizing neural network expert system in order to find syptom source(s).

• Journal of the Korean Institute of Telematics and Electronics
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• v.23 no.4
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• pp.439-444
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• 1986

In this paper the PID-B self-tuner[1] is extended to allow a less abrupt response to set point or plant parameter changes and to control a nonminimum phase plant. The proposed extended PID/ST derived from the direct pole-placement PID/ST is obtained with the Bezout identity as the underlying design method. And its control gains are normalized by the integral control gain. Although the integral control gain is normalized to 1 in our scheme, the so-called "set point and derivative kick" can be avoided sufficiently by normalizing the measurement vector and set point.

• Proceedings of the IEEK Conference
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• 2002.06a
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• pp.435-438
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• 2002

A design of Ku-band(11.7~12.20Hz) monolithic microwave integrated circuit(MMIC) low noise block(LNB) downconverter using self oscillating mixer (SOM) for direct broadcast satellite(DBS) application is presented The proposed LNB downconverter is composed of low noise amplifier(LNA), image reject filter(IRF), SOM , low pass filter(LPF). The conversion gain is 30dB , VSn is less than 1.7: 1 and overall noise figure is less than 1.2dB.

• Journal of the Korea Fashion and Costume Design Association
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• v.17 no.1
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• pp.13-24
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• 2015

The purpose of this study is to examine the influences of learners' self-efficacy on class satisfaction in learning practical basic sewing. Questionnaires were distributed to 181 college women students living in the areas of Deagu Metropolitan City and Gyeongbuk Province. The data obtained were analyzed by using various statistical tools: frequency, factor analysis, reliability analysis, correlation analysis, and multiple regression. The self efficacy of learners of practical basic sewing were made up of five factors: ability to manage interpersonal relationships, ability to deal with assigned tasks, anxiety, challenging spirit, and fear. Class satisfaction was composed of the following factors such as interest in class, professors' ability, achievement of class objectives, connectivity, preparation for class, preference for practices, and perfectibility. This study indicated the correlations between sub-variables of learners' self efficacy and class satisfaction. In other words, the higher were the levels of ability to manage interpersonal relationships, and ability to deal with assigned tasks in self efficacy, the higher were the levels of interest in class, professors' ability, achievement of class objectives, preference for practices, and perfectibility in class satisfaction. The factors of ability to deal with assigned tasks, anxiety, and challenging spirit, in learners' self efficacy were found to have statistically significant effects on the achievement of class objectives. The factor of ability to deal with assigned tasks in self efficacy had a statistically significant influence on professors' ability. The factors of ability to deal with assigned tasks, anxiety, challenging spirit and fear were found to have statistically significant effects on all the factors of class satisfaction.

• The Journal of Korean Academic Society of Nursing Education
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• v.6 no.1
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• pp.103-114
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• 2000

The purpose of this study was to determine the effect of nursing education in diabetes patient, and to define the strategy to promote their sick-roll behavior, self efficacy. The quasi-experimental design was designed non-equivalent control group, non-synchronized design. The study had been done by investigating the experimental group and control group through the questionnaire on 58 patients who had been hospitalized and visiting out-patient department in K hospital in Pusan from June 1, 1998 to September 30, 1998. Individual diabetes education was carried out experimental group for the average 45 minutes. Self-efficacy was measured by Diabetes Management Self-efficacy Instrument developed by Park(1984). Data was collected before and after the experimentation. Collected data was analyzed by means of frequency, percentage, chi-square test, mean, standard deviation, and t-test with SPSS/PC program. The results were summarized as follows : 1. 'The experimental group which received the individual diabetes education should be higher in self-efficacy than control group' was not supported. 2. 'The experimental group which received the individual diabetes education should be higher in sick-roll behavior than control group' was not supported(P=.043). In conclusion, the patient who received individual diabetes education showed the increase in degree of sick - roll behavior of diabetes patients. So individual diabetes education had been judged the nursing intervention to improve sick-roll behavior of diabetes patients. But there was no effect about self-efficacy so to have the program which can improve self-efficacy is needed.