• 재활간호학회지
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• 제7권1호
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• pp.68-77
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• 2004

The Purpose of this study is to explore the effects of Craniosacral therapy(CST) on the chronic headache patients, and the research was used the one-group pretest-posttest design. The subjects were 31 chronic headache patients, who received Craniosacral therapy by once per week for 6 weeks. The data were collected from July 1, 2003 to August 28, 2003. In order to evaluate the effects of craniosacral therapy, Visual Analogue Scale(VAS) for headach intensity, blood pressure, pulse rate, respiration rate, craniosacral rhythm rate, depression and stress perception were measured before and after treatment. The results are as follows : 1) The mean score of intensity of headache (VAS) significantly decreased after each session of Craniosacral therapy(F=86.14, p<.001). 2) The mean score of systolic blood pressure significantly decreased after each session of craniosacral therapy(F=6.99, p<.001), and the mean score of diastolic blood pressure significantly decreased after 3rd session of Craniosacral therapy(t=5.710, p<.001). The means of pulse(F=6.19, p<.001), respiration (F=7.93, p<.001) and craniosacral impulse rate(F=22.84, p<.001) significantly decreased after each session of Craniosacral therapy. 3) The means score of depression significantly decreased after Craniosacral therapy(t=6.627, p<.001) and stress also significantly decreased after Craniosacral therapy(t=5.987, p<.001). Therefore, these results of this study suggest that Craniosacral therapy could be an effective nursing intervention to reduce the intensity of headache.

• 대한물리의학회지
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• 제4권3호
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• pp.165-174
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• 2009

Purpose：This study was performed for effects of gait training on treadmill and stable surface which influenced on the lower limbs muscular activity needed in gait, plantar foot pressure with hemiplegic patients caused by cerebrovascular accident. Methods：Two groups of adult hemiplegia(n=20) were allocated randomly in this study: treadmill gait training group and control group. The gait training program was provided to experimental groups for 8 weeks (5 times a week). Measurements of pre and post experiment were plantar foot pressure. For measuring muscular activation rectus femoris, biceps femoris, tibialis anterior, gastrocnemius were detected. Results：The results of this study showed that in comparison of pre and post changes of gait training, the treadmill gait training group has noticeable changes than other groups in activity of rectus femoris and tibialis anterior, the control group revealed statistically significant differences in plantar foot pressure Toe2-5, M1, M3, M5, MF area, activity of gastrocnemius. Conclusion：These results mean gait training resulted by treadmill, stable surface provides effective muscle activation and plantar foot pressure with stroke.

• 한국공간구조학회논문집
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• 제13권1호
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• pp.97-104
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• 2013

Recent tall buildings tend to have unconventional shapes as a prevailing, which is effective for suppressing across-wind responses. Suppression of across-wind responses is a major factor in tall building projects, and the so called aerodynamic modification method is comprehensively used. The purpose of the present study is to investigate the pressure fluctuations on tapered and setback tall buildings, including peak pressures, power spectra and coherences through the synchronous multi-pressure sensing system techniques. And flow measurements around the models were conducted to investigate the condition of vortex shedding. The results show that by tapering and setback, different distributions of mean pressure coefficients at leeward surface were found, which is caused by the geometric characteristics of the models. And the power spectra of wind pressures at sideward surface become wideband and the peak frequencies are different depending on heights, which makes the correlation near the Strouhal component low or even negative. The differences in shedding frequencies were also confirmed by the flow fields around the models.

• 한국응급구조학회지
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• 제24권1호
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• pp.67-76
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• 2020

Purpose: Effective time management, as well as life-saving care, are important in maximizing the prognosis of patients who have sustained major traumas. This study evaluated the appropriateness of emergency medical system (EMS) provider's essential care and how this care impacted on-scene time in patients with major traumas. Methods: This retrospective observational study analyzed the EMS major trauma documents, classified according to the physiological criteria (Glasgow coma scale <14, systolic blood pressure <90mmHg, Respiration rate <10 or >29) in Daejeon, from January, 2015 to December, 2018. Results: Of the 707 major trauma cases, the mean on-scene time was 7.75±4.64 minutes. According to EMS guidelines, essential care accuracy was 67.5% for basic airway, 36.4% for advanced airway, 91.2% for cervical collar, 81.5% for supplemental oxygen, 47.0% for positive pressure ventilation, 19.9% for intravenous access and fluid administration, and 96.0% for external hemorrhage control. Factors affecting on-scene time were positive pressure ventilation (p<.004), and intravenous access and fluid administration (p<.002). Conclusion: Adherence to guidelines was low during advanced airway procedures, positive pressure ventilation, intravenous access, and fluid administration. In addition, the on-scene time was prolonged when the practitioner provided positive pressure ventilation, intravenous access, and fluid administration; however, these durations did not exceed the recommended 10 minutes.

• 한국자동차공학회논문집
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• 제5권4호
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• pp.70-83
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• 1997

We made a selection of engine operating conditions in the natural aspiration type diesel engine as load and speed. The effects on the power, smoke emission and cylinder pressure characteristics of these variations in operating conditions were observed experimentally. Also, the smoke emission was predicted by using the Arrhenius equation and empirical equation of the smoke emission was made. At the same time, the correlations, between the combustion and smoke emission characteristic were examined. From the above results, it is clear that to prevent power dropping and to decrease exhaust fume whin the conditions are changed, one should improve the intake system. To do this, the best way is to lower the air-fuel mixing ratio. We found that the parameters of the indicated mean effective pressure, maximum pressure and its location and combustion duration, etc. change the motion in accordance with the conditions described above. Also, we found that the variation of the pressure cycle comes from an amplified variation of the early part of process. From the analysis of comparing combustion and exhaust fume, the exhaust fume is produced at the latter time of combustion and decreased when the combustion ratio is higher. Also, we developed a special formula which can predict the exhaust fume value according to the engine load and speed.

• 오토저널
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• 제3권3호
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• pp.49-57
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• 1981

A cycle simulation of 4 cycle spark ignition engine using methanol-water blend as a fuel has been developed for study of prediction of power, specific fuel consumption, mean effective pressure and thermal efficiency. One-dimensional flow model for intake process and thermodynamic model for combustion process were selected. After, performance test was made with conventional engine which was modified in consideration of fuel properties. And computational results by simulation have been compared with experimental results. As the agreement between computational and experimental results was good, prediction of engine performance by was possible.

• Journal of Chest Surgery
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• 제31권1호
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• pp.1-6
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• 1998

체외순환을 이용한 개심술후 과도한 체내 수분 축적은 중요 장기의 기능 이상을 초래한다. 본 논문에서는 소아 개심술시 변형 초여과법을 적용하여 적절한 수분제거와 심폐기능에 미치는 효과를 관찰하기위하여 개심술을 받은 17례의 환자를 대상으로 변형 초여과를 시행한 초여과군 10례와 대조군 7례로 나누어 그 효과를 비교 분석하였다. 초여과군에서 초여과의 시행은 체외순환 완료직후부터 평균 9.8분 시행하여 매 환아당 평균 42ml/kg의 수액을 여과시켜 초여과 실시후 평균 헤마토크리트가 41.7%로 증가함을 관찰할 수 있었다. 초여과군에서는 변형 초여과를 시행하기전에 비해 수축기 및 이완기혈압의 증가가 대조군에 비해 유의하게 높았다. 또한, 대조군에 비해 초여과군에서 혈소판등의 혈액응고인자의 보존효과도 높았으며 변형 초여과법 시행에 따른 합병증은 없었다. 이상의 결과에서 소아 개심술시 변형 초여과법의 적용은 혈역학적 및 혈액학적 이득을 보여 심폐기능의 향상과 환자의 회복에 기여하는 방법이라 사료되어진다.

• Journal of Advanced Marine Engineering and Technology
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• 제31권1호
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• pp.26-33
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• 2007

The intake swirl motion, as one of dominant effects for an engine combustion. is very effective for turbulence enhancement during the compression process in the cylinder of 2-valve engine. Because the combustion flame speed is determined by the turbulence that is mainly generated from the mean flow of the charge air motion in intake port system. This paper describes the experimental results of swirl flow and combustion characteristics by using the oil spot method and back-scattering Laser Doppler velocimeter (LDV) in 2-valve single cylinder transparent LPG engine using the liquid phase LPG injection. For this. various intake port configurations were developed by using the flow box system and swirl ratios for different intake port configurations were determined by impulse swirl meter in a steady flow rig test. And the effects of intake swirl ratio on combustion characteristics in an LPG engine were analyzed with some analysis parameters that is swirl ratio. mean flow coefficient, swirl mean velocity fuel conversion efficiency. combustion duration and cyclic variations of indicated mean effective pressure(IMEP). As these research results, we found that the intake port configuration with swirl ratio of 2.0 that has a reasonable lean combustion stability is very suitable to an $11{\ell}$ heavy-duty LPG engine with liquid phase fuel injection system. It also has a better mean flow coefficient of 0.34 to develope a stable flame kernel and to produce high performance. This research expects to clarify major factor that effects on the design of intake port efficiently with the optimized swirl ratio for the heavy duty LPG engine.

• 기본간호학회지
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• 제22권1호
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• pp.25-34
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• 2015

Purpose: This study was conducted to exam the effect of listening to preferred music on patients' anxiety, blood pressure, heart rate, and glucose levels during spinal anesthesia. Methods: A quasi-experimental research design was used. The participants were divided into an experimental group (n=30) and a control group (n=30) undergoing lower leg operations using spinal anesthesia. The mean age was 35.1 years and the mean time of listening to the music was 71.33 minutes. The experimental group was provided with their preferred music selected by each of the participants; the control group was not provided with any music. Results: The state of anxiety was decreased significantly in the experimental group(F=4.14, p=.046). Anxiety (VAS) was also significantly lower in the experimental group (F=4.62, p=.036). Conclusion: The results of the study show that listening to preferred music is an effective method for reducing peri-operative anxiety for patients during spinal anesthesia.

• 여성건강간호학회지
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• 제15권3호
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• pp.177-185
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• 2009

Purpose: This study was done to examine the effects of an incontinence prevention program on postpartum women. Methods: The study design was a nonequivalent control pretest-posttest design. The subjects were 49 postpartum women with a normal vaginal delivery, 25 in the experimental group and 24 in the control group. Data was collected from lune 1. 2007 to April 30. 2008 at a postpartum women's care center located in Jeonju, Korea. For the experimental treatment, an incontinence prevention program was carried out for 24 weeks. Measures included maximum pressure of pelvic floor muscle contraction and duration of pelvic floor muscle contraction at pre-treatment, 5 weeks postpartum and 24 weeks postpartum. Data was analyzed by Repeated ANOVA using the SPSS/WIN 14.0 program. Results: The mean maximum pressure of pelvic floor muscle contraction (F = 8.95, p < .001) and mean duration of pelvic floor muscle contraction (F = 22.01, p < .001) were significantly different between the groups, and significantly increased as time passed. Conclusion: Practice of an incontinence prevention program is considered an effective intervention for the results of fewer urinary incontinence symptoms in postpartum women.