• Smart Structures and Systems
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• v.29 no.3
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• pp.457-473
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• 2022

A high-frequency vibration control method is proposed in this paper for Pumped Storage Power Plants (PSPPs) using Eddy Current Tuned Mass Damper (EC-TMD), based on which a new type of EC-TMD device is designed. The eddy current damper parameters are optimized by numerical simulation. On this basis, physical simulation model tests are conducted to compare and study the effect of structural performance with and without damping, different control strategies, and different arrangement positions of TMD. The test results show that EC-TMD can effectively reduce the control effect under high-frequency vibration of the plant structure, and after the additional damping device forms EC-TMD, the energy dissipation is further realized due to the intervention of eddy current damping, and the control effect is subsequently improved. The Multi-Tuned Mass Damper (MTMD) control strategy broadens the tuning band to improve the robustness of the system, and the vibration advantage is more obvious. Also, some suggestions are made for the placement of the dampers to promote their application.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.18 no.1
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• pp.54-62
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• 2011

Purpose: The purpose of this study was to test the effects of aroma inhalation on subjective quality of sleep, state anxiety, and depression of mothers who underwent a Cesarean section delivery. Methods: This study was designed as a nonequivalent control group quasi-experimental study based upon data acquired through a pre-post test. The experimental group (n=33) was given general obstetric nursing care plus dry inhalation method using lavender essential oil, in which each mother put one drop on a tissue and breathe near it for 5 minutes before going to bed. Then they put 1~2 drops on their pillow for 6 nights. The control group (n=34) was only given general obstetric nursing care. Data were collected using a questionnaire for measures of subjective quality of sleep, state anxiety, and depression by self-report. ${\chi}^2$-test, Fisher's exact test, t-test, and ANCOVA with SPSS/Win12.0 were used to analyze the data. Results: There were significant differences in subjective quality of sleep (p<.001), state anxiety (p=.049) and depression (p=.029). Conclusion: The results suggest that aroma inhalation method can be an effective nursing intervention to improve quality of sleep and decrease anxiety and depression in postpartum mothers suffering from stress related to a Cesarean section delivery.

• Journal of the Korean Society of Physical Medicine
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• v.15 no.3
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• pp.51-59
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• 2020

PURPOSE: The purpose of this study was to provide clinical basic data to reduce pain and improve function by comparing neck muscle activity and neck alignment using self-stretching and passive stretching exercises for chronic neck pain caused by forward head posture. METHODS: The subjects were divided into 15 subjects assigned to perform self-stretching exercise and 15 subjects assigned to perform passive stretching exercise. The intervention was conducted for a total of 4 weeks. The muscle activity in the neck was measured by surface electromyography (EMG) before intervention, and craniovertebral and cranial rotation angles were measured by X-ray. The 4-week intervention was conducted and the above items re-measured in the same manner and analyzed. RESULTS: Muscle activity within both groups after intervention using self-stretching or passive stretching exercise was significantly different (p < .05)(p < .01). Neck alignment of both groups was significantly different (p < .001)(p < .01). Further, muscle activities of the upper trapezius and splenius capitis muscles showed significant differences (p<.05). Lastly, neck alignment showed statistically significant difference (p < .05). CONCLUSION: Self-stretching exercise activated motor nerves as a posture correction exercise, thereby improving inhibition of muscle activity, muscle contraction delay, and pathological conditions of the muscle. For future research, interventions of self-stretching exercise will be needed for patients with chronic back pain accompanied by forward head posture, and various clinical studies on postural improvement of forward head posture by maintaining a normal muscle tone state are needed.

• Korean Journal of Health Education and Promotion
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• v.23 no.1
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• pp.1-22
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• 2006

Objecive and Method: Smoking among health professionals has been shown to influence smoking related knowledge, attitude and educational practices in medical setting. And lack of health professionals' efficacy for smoking cessation intervention has been a major barrier to education on smoking too. In this regard, the present study was carried out to introduce and discuss the advanced cases of smoking cessation education for health professionals, and to develop theory-based educational models of smoking cessation for health professionals in order to improve the effectiveness and efficiency of intervention on smoking in a medical framework. Results: First, major issues of health professionals' smoking cessation intervention were discussed. Discussed issues were smoking prevalence among health professionals, importance of health professionals' roles both as health educators and examples, and health professionals' cognitive dissonance. As advanced cases of smoking cessation education for health professionals, ATOD(Alcohol, Tabacco, and Other Drug problem prevention) developed by US Department of Health & Human Services and the Rx for Change curriculum in California State were discussed. Finally, smoking cessation educational models for health professionals were developed on the basis of social cognitive model and TPB/TTM. Conclusions: For the effective and efficient smoking cessation intervention in medical setting, systematic efforts would be necessary to provide opportunities for ensuring the qualification of health professionals on smoking cessation through an analysis of major issues concerning smoking cessation education for health professional and the development of comprehensive curriculum for smoking cessation.

• Child Health Nursing Research
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• v.8 no.2
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• pp.229-243
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• 2002

This study aimed at compare analyzing the trend of research in Korea and Other Country on Pain in Children, suggesting direction future pain research, and contributing to the use of pain intervention in nursing practice. Research studies on pain in children were selected from Korean Nures' Academic Society Journal, Korean Pediatric Nursing Academic Society Journal, dissertations, and contected using the MEDLINE between 1980 to April, 2002. The number of the 16 studies in Korea with 36 studies in other country. So, The number of the total studies were 52. There studies were analyzed for 1) the present condition of research studies 2) Research subject 3) Types of condition (Situation) in pain 4) Measurement Tools 5) Types of nursing interventions and 6) Research design. The findings of the analysis can be summerized as follows : 1) The number of the studies insufficient in Korea(16 studies) compare to other country (36 studies). 2) Research subjetcs were mostly patients and preschool, schoolage children(12 studies, 26 studies). 3) Types of condition(situation) in pain were First, related to injection(IM, IV, Blood Sampling)(6 studies, 14 studies) second, related to operation (4 studies, 11 studies) third, related to heelstick in neonates (3 studies, 6 studies). 4) As measurement tools for pain were mostly FPRS(facial pain rating scale) used to studies (9 studies, 11 studies), and more than two tools used. Mostly used to heart rate at studies. 5) Types of nursing intervention, Teaching and information were most popular intervention for pain in Korea(4 studies), and distraction was most popular intervention for pain in the other country(14 studies). 6) Research design, The experimental research were most popular studies in Korea and the other country. The following suggestions made based on the above findings : Need to researches about pain of children's chronic disease.

• The Journal of Korean Academic Society of Nursing Education
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• v.18 no.2
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• pp.343-352
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• 2012

Purpose: The purpose of this study was to identify the factors influencing Health Promotion Lifestyle Profile of women college students. Methods: The sample consisted of 248 women college students in P city. Self report questionnaires were used to measure the variables. In data analysis, SPSSWIN 20.0 program was utilized for descriptive statistics, Pearson's correlation coefficients, and regression analysis. Results: The mean score for Health Promotion Lifestyle Profile was 2.27. In the the highest subcategories, the highest degree of performance was interpersonal relationships and the lowest degree was health responsibility. Health Promotion Lifestyle Profile was significantly different according to religion (F=3.48, p=.017), economic state(F=3.01,p=.031), perceived health state(F=8.07, p<.001), exercise frequency (F=16.02, p<.001), and self-rated knowledge about health (F=21.08, p<.001). In regression of analysis, perceived health state, exercise frequency, and self-rated knowledge about health were significant predictors explaining 30.5%. Conclusion: This study suggests that perceived health state, exercise frequency, and self-rated knowledge about health are significantly influencing factors in Health Promotion Lifestyle Profile in women college students. Therefore, the strategies of nursing intervention which improve these variables must be developed for women college students.

• Journal of Korean Critical Care Nursing
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• v.4 no.1
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• pp.37-50
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• 2011

Purpose: This study is to evaluate the effect of abdominal breathing on postoperative pain, state anxiety, blood pressure, and heart rate of cardiac surgery patients treated in intensive care unit. Methods: A non-synchronized design of nonequivalent control group pre-post test was used. Participants were divided into an experimental group(n=22) and a control group(n=21). Just usual postoperative treatments were provided to the control group, while abdominal breathing interventions were provided to the experimental group, in addition to usual treatments. The intervention was consisted of 4 stages-introductions, breathing perception, breathing training, and closing-and it lasted twelve minutes in total. Pain, state anxiety, blood pressure and heart rate were the dependent variables of the abdominal breathing. Results: Those who carried out abdominal breathing showed a significant reduction in pain, as well as decrease of systolic blood pressure. However, it turned out to have no effect on state anxiety, diastolic blood pressure and heart rate. Conclusion: Abdominal breathing is simple and harmless and is effective for reducing postoperative pain.

• Therapeutic Science for Rehabilitation
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• v.7 no.2
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• pp.9-16
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• 2018

Objective : The aim of this research was to provide EEG (electroencephalogram) basic data in clinical areas through identifying measurement tools, measurement methods, and evaluation and analysis method of the EEG which is a neurological change measurement of patients with brain injury. Methods : Previous studies were found in an electronic database (e.g., PubMed, Science Direct). The keyword search terms were 'Electroencephalography', 'stroke', 'intervention OR training'. Results : Utilitizing brain-computer interface, the EEG, which is a tool for measuring the effects of rehabilitation through changes of brain activation state. Also, it could identify functional brain reorganization mechanism. Whenever a research utilized the EEG, which is composed of various channels, different types of electrode, and varied electrode locations. Conclusions : Through this review, we found that Electroencephalography is possible to neurologically verify the effectiveness of intervention and formulate an intervention strategy for efficient occupational therapy.

• Korean Journal of Adult Nursing
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• v.21 no.3
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• pp.269-280
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• 2009

Purpose: To examine the effect of back massage on immune response, symptom distress, and mood state of patients undergoing allogeneic hematopoietic stem cell transplantation (allogeneic HSCT). Methods: Subjects were thirty-seven patients undergoing sibling allogeneic HSCT (including 16 in the experimental group and 21 in the control group). Experimental subjects participated in an intervention group of back massage for 10 minutes, once a day and 5 times a week, from one week prior to the HSCT to the third week after the HSCT or a control group. A non-equivalent pretest-posttest design was used. t-test and Repeated measures ANOVA were used to examine group differences by using SAS. Results: No significant group differences were found in Immune response (CD4+, CD8+,CD19+, CD56+) and symptom distress. The experimental group had significantly less mood state (anxiety, confusion) than the control group. Conclusion: The back massage for the patients undergoing allogeneic HSCT may be effective in altering the anxiety and confusion during hematopoietic stem cell transplantation. However, this study did not provide evidence in improving immune response and symptom distress.

• Korean Parent-Child Health Journal
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• v.7 no.2
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• pp.168-181
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• 2004

Purpose: The purpose of this study was to identified patterns of studies and to analyze the nursing research related to the massage intervention in Korea and to improve direction of nursing research in massage intervention in Korea. Methods: The research studies related to the massage were selected from the Korean Nurses Academic Society Journal and dissertation which were conducted experimental research design the last 7 years in Korea. The total numbers of the studies were 58. Result: The study subjects were post operational state in 34.5%, healthy adult in 17.2% studies. The others dealt with infant, cancer, dementia, hypertension, preterm neonates, elderly. Types of massage were whole body in 31.1%, foot in 22.6%, hand in 17.2%, back in 13.8% studies. And Meridian massage in 17.2%. Length of massage was below 5 minutes in 17.2%, 6~10 minutes in 29.4% and 11~20 minutes in 32.8% studies. Frequency of massage was only 1 time in 25.9%, 2~5 times in 31.1% studies. Massage produced psychological and physiological effects. Positive psychologic effects were anxiety relief, pain relief, mood enhancement and fatigue relief. Positive physiologic effects on body systems were blood pressure, heart rate, edema, skin temperature, immune system, blood glucose, excretion, PMS syndrome and growth and development. Conclusion: As a result, effects of massage were almost positive. Therefore massage is useful alternative nursing intervention. But more attention research is needed to identify the objectivity instrument to measure and repeat research.