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구요법(灸療法)이 중년여성(中年女性)의 긴장성(緊張性) 요실금(尿失禁)에 미치는 효과(效果)
김필환,이채우,김원일,윤현민,Kim, Phil-whan,Lee, Chae-woo,Kim, Won-ill,Youn, Hyoun-min 대한침구의학회 2004 대한침구의학회지 Vol.21 No.4
Objective: The purpose of this study is to investigate the effects of moxibustion on the stress urinary incontinence for middle-aged women. The study was performed with the nonequivalent control group non-synchronized design from April 14 thru June 16, 2003. Methods: The subjects are 60 middle-aged women with stress urinary incontinence which are composed of 30 in the experimental group and another 30 in the control group. The moxibustion procedure was applied to the experimental group in a week, and then the level of stress urinary incontinence was measured by using the revised Hendrickson's scale. Results: The results of this study are as follows: 1. Average period of stress urinary incontinence is 4.12 years, and the level of stress urinary incontinence is predominant in the mild state(63.3%), and the frequency of stress urinary incontinence is mostly 2-6 times per week(70%). 2. Hypothesis: Stress urinary incontinence will decrease for the experimental group as compared with for the control group: accepted(t=-5.113, p=0.000). Conclusion: Based on the results described above, it is considered that the moxibustion might be very effective oriental nursing intervention for improving the stress urinary incontinence for the middle-aged women.
일개 간호대학생의 플립드 러닝을 적용한 수업이 학습동기, 학습태도, 문제해결능력에 미치는 차이
김필환,김경남,Kim, Pil-Hwan,Kim, Kyoung-Nam 한국임상보건과학회 2020 한국임상보건과학회지 Vol.8 No.1
Purpose: This research was conducted to the comparison of flipped learning on nursing students' learning motivation, learning attitude and problem solving ability. Method: Flipped learning was a learner-centered learning method. This study was conducted on 93 nursing students and 4th grade students taking community nursing. This study was a comparative experimental study of single group. The collected data were analyzed using SPSS Win 20.0 program. Results: The results of this study showed that the instruction of the flip learning application was statistically different from that before the test in the learning motivation (t=-2.149, p=.034) and problem solving ability (t=2.210, p=.030). However, there was no statistically significant difference in learning attitude. It is thought that the flipped-learning classes was progressed with the learner-centered, and the learner was given a lot of tasks and the preparation time was required. The classes with the flip learning was effective for the motivation and problem solving ability improvement. Conclusion: Therefore, in the next study, it is necessary to design a classes that complements this part in order to positively increase the students' attitude of learning. I would like to apply flipped-learning classes in various subjects.
김필환(P. H. Kim),이장욱(J. W. Lee),김진태(J. T. Kim),김창수(C. S. Kim) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
Recently, as the railway vehicles become speedy and massive, the collision is being regarded as an important factor for the assessment of safety for passenger. And the study of collision is being in progress more actively in advanced nations. In this study, the collision analysis is performed by using non-linear dynamic finite element program PAM-CRASH. The carbody used in analysis is made of Aluminum AL6005A to realize lightweight, and designed and manufactured by DHI (Daewoo Heavy Industry) lately. For the accuracy of the result in the practical collision, the experiment of material properties has been performed. The result of the analysis shows the underframe of rolling stock is the most important part as a collision energy absorbing structure. Further study is needed for optimal design which enables the carbody shell structure to disperse absorbing energy adequately.
초저온 액화가스 기화기의 열 교환성능 비교에 관한 연구
김필환(Pil-Hwan Kim),김철표(Chul-Pyo Kim),정효민(hyo-Min Jeong),정한식(Han-Shik Chung),이용훈(Yong-Hun Lee) 대한설비공학회 2008 설비공학 논문집 Vol.20 No.10
Air-heating vaporizer usually is used to regasify LNG at satellite areas because of the small demand of natural gas there. The co㎜on type of air heating vaporizer which exists in the market is the longitudinally finned type with 8 fins, 55 ㎜ fin length and 2 ㎜ fin thickness. To contribute in developing an efficient air-heating vaporizer, experiment on finned type air-heating vaporizer using 8 fins, 50 ㎜(fin length) with 2 ㎜(fin thickness) which exist in the market and 4 fins, 75 ㎜(fin length) with 2 ㎜(fin thickness), which is proposed, were conducted. Then, both types of vaporizers are compared. The experiments were conducted in one hour by varying the ambient condition and the length of the vaporizer. The ambient air was controlled so that it has the same temperature, humidity and air velocity with air condition in every season available and the length was varied 4000 ㎜, 6000 ㎜ and 8000 ㎜ for each type of vaporizer. Additional experiment with longer duration, i.e. In this experiment, the main aspects in analyzing the characteristics of the air heating vaporizer the inlet-outlet enthalpy difference and the outlet temperature of the working fluid. LN₂ is used to substitute LNG because of safety reason. The results show that the characteristics of the finned type 4fin75le vaporizer are comparable to finned type 8fin50le vaporizer.