• 수산해양교육연구
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• 제13권2호
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• pp.132-145
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• 2001

The cold discharge from LNG(liquefied natural gas) terminal makes the water temperature around the terminal fall down. This temperature reduction may result in serious changes on marine ecosystem of the coastal area. The numerical model experiments of material transport and tidal circulation in the inner bay, Chinhae Bay are investigated in the dispersion of cold discharge from LNG terminal. The condition of ambient water is exposed to tide, tidal current and cold discharge temperature. Simple numerical model experiments highlight the importance of tidal circulation and cold discharge at each case and some results are discussed. The results of this study can be used as the guideline for the site selection of LNG terminals and long-term marine environmental impact assessment.

• 성인간호학회지
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• 제22권2호
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• pp.190-199
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• 2010

Purpose: The purpose of this study was to determine the differences in the level of disease related knowledge, compliance of health behavior, and educational needs in relation to time (at discharge and 6 months after discharge) among patients underwent percutaneous coronary intervention (PCI). Methods: Data were collected from January 1, 2006 to September 30, 2006 and a total of 60 patients participated in the study. The survey was conducted in patients underwent PCI at the time of discharge right after discharge education was provided and at a follow up visit which was 6 months after discharge. Results: The level of disease related knowledge (p<.001), the compliance of health behavior (p<.001), educational need (p=.496), the sub-item of sexual life (p<.001), follow up (p<.001), diet (p=.021), stress (p<.001) in compliance of health behavior, and the sub-item of specific character of disease in educational needs (p=.015) were significantly different between discharge and 6 months after discharge. Conclusion: The results of this study suggested that further education should be provided to the patients underwent PCI regarding medication, smoking cessation, daily life and exercise at a time of 6 months after discharge in order to increase patient compliance of health behavior.

• Child Health Nursing Research
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• 제13권1호
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• pp.58-65
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• 2007

Purpose: The purpose of this study was to examine the effect of a discharge education program on maternal role confidence and parenting stress of mothers who delivered premature infants. The program provided them with information on childrearing and supportive educational nursing care. Method: This study was based on pretest-posttest nonequivalent nonsynchronized quasi-experimental design. The participants in this study were 30 mothers who delivered premature infants at a general hospital in G city. The instruments used in this study were Maternity Confidence Inventory, Parenting Stress Index(PSI). Results: The first hypothesis that the mothers in the experimental group would undergo changes in maternal role confidence after the intervention was accepted, as there was a statistically significant gap between the two groups(F=9.386, P=.000). The second hypothesis that mothers in the experimental group would undergo change in parenting stress after the intervention was accepted, as there was a statistically significant gap between the two groups(F=4.425, P=.380). Conclusion: The findings suggest that the Discharge Education Program was an efficient intervention method to boost the maternal confidence of mothers with premature infants and to decrease their parenting stress.

• 보건교육건강증진학회지
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• 제20권3호
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• pp.269-280
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• 2003

This study was conducted to identify the effects of telephone consulting follow- up on self care behaviors and self efficacy in diabetic patients after discharge. The subjects for this study were consisted of 39 patients and twenty subjects assigned to the experimental group received the telephone consulting follow-up after discharge once a week during 4 weeks with diabetic education before discharge and nineteen subjects assigned to the control group received diabetic education before discharge without telephone consulting follow-up. The results of this study are as follows： 1. The experimental group which received the telephone consulting had higher self care behaviors scores than the control group (t＝4.92, p＝.00). 2. The experimental group which received the telephone consulting had higher self efficacy scores than the control group (t＝4.71, p＝.00). 3. The relationship between self efficacy and self care behaviors showed a significant correlation in the subjects. In conclusion, the telephone consulting follow-up improved self care behaviors and self efficacy, therefore this intervention can be effective in promoting the care of diabetic patients

• Advances in materials Research
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• 제6권2호
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• pp.169-184
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• 2017

Electro-Discharge machining (EDM) is a thermal process comprising a complex metal removal mechanism. This method works by forming of a plasma channel between the tool and the workpiece electrodes leading to the melting and evaporation of the material to be removed. EDM is considered especially suitable for machining complex contours with high accuracy, as well as for materials that are not amenable to conventional removal methods. However, several phenomena can arise and adversely affect the surface integrity of EDMed workpieces. These have to be taken into account and studied in order to optimize the process. Recently, artificial neural networks (ANN) have emerged as a novel modeling technique that can provide reliable results and readily, be integrated into several technological areas. In this paper, we use an ANN, namely, the multi-layer perceptron and the back propagation network (BPNN) to predict the mean surface roughness of electro-discharge machined surfaces. The comparison of the derived results with experimental findings demonstrates the promising potential of using back propagation neural networks (BPNNs) for getting a reliable and robust approximation of the Surface Roughness of Electro-discharge Machined Components.

• Ocean and Polar Research
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• 제38권4호
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• pp.331-338
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• 2016

Many studies using tracers have been conducted to understand a physical process in a system. Rain-on-snow could accelerate snowmelt processes, which influences the hydrological process in both temperate and polar regions. Hydrological and ecological conditions will be affected by the amount and timing of discharge reaching the bottom of a snowpack. The discharge consists of the rain-on-snow, pore water penetrating into the snowpack and natural meltwater. In this study, after a rain-on-snow experiment, we conducted an isotopic hydrograph separation to distinguish rainwater and pore water from meltwater. Using the isotopic data of snow and meltwater from Lee et al. (2010), two components were separated based on the assumption that rainwater and pore water are new water and natural meltwater is old water. After the second rain-on-snow experiment, the maximum contributions of rainwater and pore water reached up to 69% of the discharge and then decreased. During the study period, the measured total discharge was 4153 L and 40% (based on hydrogen isotope) of rainwater and pore water was calculated in the discharge, which is not consistent with what Lee et al. (2016) calculated using chemical separation (63%). This inconsistency can be explained by how an end-member was defined in both approaches. The contributions of artificial rainonsnow and pore water to melwater discharge range between the two methods. This study will suggest a mixing calculation from isotopic compositions of the Southern Ocean.

• 성인간호학회지
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• 제22권3호
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• pp.322-328
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• 2010

Purpose: The purpose of this study was to investigate the effects of an individualized cardiac health education on self-care behavior and serum cholesterol levels patients with coronary artery disease. Methods: Twenty-two patients in the intervention group and 22 in the control group were assigned randomly in this study. The intervention group received an individualized cardiac health education program which consisted of four different sessions for a total of four sessions. Specifically, two sessions occurred during the patients' hospitalization with a third session at the time of discharge with a fourth session scheduled via telephone one week post discharge. Data were collected through a questionnaire for self-care behavior and a blood test for total cholesterol at the time of admission and the two weeks after discharge. The questionnaire for self-care behavior was a standardized instrument and serum cholesterol was measured by Accutrend GC (Roche, Germany). Results: Self-care behavior scores included diet, medication, exercise, risk factor, blood pressure measurement, and visits to hospital were significantly more in the experimental group compared to the control group. Conclusion: The above findings indicate that the individualized cardiac health education was effective in increasing of self-care behavior.

• Journal of Korean Biological Nursing Science
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• 제17권4호
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• pp.331-340
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• 2015

Purpose: This study was to develop and evaluate an individualized education program based on self-efficacy for patients with kidney transplantation in Korea. Methods: A nonequivalent control group pretest-posttest design was used. The participants consisted of 43 patients who underwent kidney transplants at one hospital in Seoul, from July 2012 to April 2013. The experimental group received an individualized education based on self-efficacy in the hospital and follow-up telephone consultation in the 2nd and 3rd week after discharge. The control group received a routine discharge education. Knowledge, self-efficacy, and compliance related to kidney transplant were measured and analyzed by frequency, average, Mann-Whitney U test, Fisher's exact test, independent t-test, and ${\chi}^2$-test using SPSS WIN 20.0. Results: Significant differences were found in self-efficacy between the experimental group and the control group. But no significant differences were found in knowledge and compliance between two groups. The scores of several items on monitoring health status in compliance were higher in the experimental group than those of the control group. Conclusion: The results of this study demonstrate the fact that an education program based in self-efficacy for patients with kidney transplant would be effective in improving self-efficacy and the ability to monitor their health status.

• 부모자녀건강학회지
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• 제3권1호
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• pp.73-94
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• 2000

This study was designed to compare the education needs in LBW infant's mother at discharge and after one month at home for development of the educational program. The subjects of this study consisted of 61 mothers of LBW infant's at discharge and 51 mothers of LBW infant's after one month at home. They were selected by convenience from 3 general hospitals and 1 pediatric hospital in Seoul, Kangreung and Inchon. The data were collected during the period from January, 5 to March, 15, 2000. The Education Needs for LBW infant Care was measured by Questionnaire that has developed by researchers. The data were analized by descriptive statistics, non-paired t-test & ANOVA using SAS. The results of this study were as follows: 1) The educational need, of the mothers of LBW infant at discharge were higher than the mothers of LBW infant after one month at home(t=8.72, p=.00). 2) There were significant associations between the educational needs of the mothers of LBW infant after one month at home and numbers of children(F=3.61, p=0.03). 3) There were significant associations of the educational needs between the mothers of LBW infant at discharge and the mothers of LBW infant after one month at home in categories and items. (1) There were significant associations by categories such as Infant care(t=8.34, p=.00), feeding(t=6.71, p=.00), unusual behavior (t=6.54, p=.00). Management disorder (t=8.67, p=.00), attachment between parents and infant(t=5.19, p=.00) and environment (t=6.14, p=.00). (2) There were two items that represented the highest educational needs in all items. That were "How about we can do when infant has a breathing disorder" and "How about we can do when infant has a seizure". These two items included Management of disorder category. In Conclusion, when the nurse teaching the method of infant care to mother, educational contents must be included about Management of disorder emphatically.

• 한국간호교육학회지
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• 제16권1호
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• pp.140-149
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• 2010

Purpose: This follow up study was performed to survey the problem in performing ADLs at home after surgery. Method: Twenty elderly patients were assessed 3 times; from the time of hospitalization for surgery until 3 weeks after discharge. Measuring tools are numeric rating scales (NRS) for pain and 3 questionnaires developed by the authors to measure difficulties in ambulation, performing indoor ADLs, and emotional status. Pearson correlation, variance analysis and descriptive statistics were used to analyze the data. Result: The level of pain significantly decreased after surgery, but the difference between pain at the time of discharge and that of 3 weeks after discharge were not significant. Pain showed a positive relationship with emotional difficulties. Elderly with a higher education, family caregiver, and regular exercise showed a lower level of emotional difficulties. Conclusion: Comprehensive approaches for chronic pain including physical, psychological, and social aspects should be considered when caring for the elderly with spinal surgery. In addition, home care nursing interventions should include an exercise program to promote adaptation and rehabilitation after discharge.