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혈우병 소견을 가진 뇌출혈 환자 치험(治驗) 1례(例)
정인태,서병관,이현종,하지영,강미경,홍장무,백용현,박동석,최도영,Jung, In-tae,Seo, Byung-kwan,Lee, Hyun-jong,Ha, Ji-young,Kang, Mi-kyeong,Hong, Jang-moo,Baek, Yong-hyeon,Park, Dong-suk,Choi, Do-young 대한침구의학회 2003 대한침구의학회지 Vol.20 No.4
Objective : Hemophilia, a genetically determined disorder, is characterized by abnormality of the coagulation mechanism due to functional deficiency of a specific factor, namely VIII or IX. In this study, the effect of Dong-Si acupuncture therapy on the cerebral hemorrhage patient with hemophilia was evaluated. Methods : We treated him with acupuncture by stimulating Dong-Si acupuncture point(Yuk Wan) and assessed the effect by using manual dynamic evaluation of MRC(Medical Research Council) and Modified Barthel Index. Results : After treatment, the bleeding tendency was grossly reduced and bleeding lesion was absorbed gradually. And manual dynamic evaluation of the upper extremity increased from 4 grade to 5 grade. Conclusions : This result suggest that Dong-Si acupuncture therapy on the cerebral hemorrhage patient with hemophilia was effective. And futher studies are required to concretely prove the effectiveness of Dong-Si acupuncture therapy for treating hemorrhagic diseases.
홍용,김현식,고유곤,홍동표,김성욱 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-
In this paper, gear system for Micro-press actuator parts is developed. The micro-press system consists of AC geared servo motor, gear system and high precision ball screw. Herein, the micro-press gear system not only forms the micro thin foil valve but also forms the hydro dynamic bearing for a high precision rotational equipment. we analyzed the transmitted power capacity of gear system and torque, angular velocity of ball screw, because we are to select the appropriate servo motor and then we apply result of analysis to the micro press system. For the next step, we plan to study for the development of forming speed for a productivity with high precision.
탄소섬유 프리프레그 외부 표면 적층방법에 따른 하이브리드 샤프트 진동특성
홍동표,김현식,홍용,고유곤,유청환 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-
Studies on carbon fiber epoxy composite is being conducted broadly in industries because of its specific stiffness, specific strength and good fatigue resistance. Because carbon fiber epoxy composite has high vibration characteristics, if existing metal material is alternated by carbon fiber epoxy composite, structure will be low weight, satisfy 1st bending natural frequency and have high fatigue resistance. In this study, research on to manufacture hybrid propeller-shaft using carbon fiber epoxy composite instead of current steel propeller shaft of rear wheel drive vehicle. For this, change of 1st bending natural frequency by the number of layers of carbon fiber epoxy composite on the outer surface of aluminum shaft was observed. Compared the change of 1st bending natural frequency by FEA with computer simulation and vibration test. Through this, the amount of increase in 1st bending natural frequency of hybrid shaft by the increase in number of layers of carbon fiber epoxy composite and high vibration characteristics of hybrid shaft was acknowledged.
홍동표,홍용,왕고평,김병진,김영문,이재정,김재열 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-
This paper presents a primary study for a new method of enhancing measurement using impedance analysis method, which is widely used for structure health monitoring. Many of skyscrapers, bridges, tunnels, which have been built up several years, and nearly reached their operating life due to aging crack, material deterioration, and so on. therefore, the health monitoring technique has obtained considerable attention. The goal of this research is to show basic information to evaluate structural health condition using piezoelectric sensors. The piezoelectric materials have various merits. It is easy to shape various forms and can be embedded on the materials more conveniently. Moreover, the excitation frequency can be changed and the piezoelectric sensors cost less. All these features make the piezoelectric-based system applicable to structural healthy monitoring. This work presents a study for the development of a practical and quantitative technique for assessment of the structural health condition by piezoelectric impedance-based technique associated with longitudinal wave propagation. To estimate the damage condition numerically, we suggest the evaluation method Cov (Covariance) and CC (Correlation Coefficient) in this paper.
홍성찬,함용기,김영빈,박병근,정동혁,이정윤,권성택 圓光大學校 附設 體力科學硏究所 2003 體力科學硏究 Vol.26 No.2
The purpose of this study is to elucidate the effects of regular swimming exercise on blood lipoprotein metabolism and leptin. In this study, swimming(HRmax 50-75%, 60min/day, 5day/week) was performed and 18 were participated for study during 16 weeks. They were divided into two groups, one group as experimental group(n=9) and the other as control group(n=9). A measured factors were TC, TG, HDL-C, LDL-C and leptin.. All data were expressed as mean± standard deviation by using spss package program(win 9.0), one way anova and independent t-test was used to analyze the difference of exercise duration(0week, 8week, 12week, 16week) between groups. For all statistics performed statistical significance was set at p<.05. After exercise intervention, TC, TG, HDL-C, LDL-C and leptin were found to have more significant effects in the experimental group than control group. This results indicated regular swimming exercise training is beneficial to prevent and treat cardiovascular disease and obesity.
홍용,김현식,고유곤,홍동표,김성욱 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
In this paper, gear system for Micro-press actuator parts is developed. The micro-press system consists of AC geared servo motor, gear system and high precision ball screw. Herein, the micro-press gear system not only forms the micro thin foil valve but also forms the hydro dynamic bearing for a high precision rotational equipment, we analyzed the transmitted power capacity of gear system and torque, angular velocity of ball screw, because we are to select the appropriate servo motor and then we apply result of analysis to the micro press system. For the next step, we plan to study for the development of forming speed for a productivity with high precision.
홍효석,김동훈,박용철 진주산업대학교 1999 산업과학기술연구소보 Vol.- No.6
This study is to analyze the relation factors of corporate contribution and entertainment expenses. We try to seek to find out the motives of corporate contributions and entertainment expense for describing factors. Previous study is reported different result for our study. Then this study reexamines about this more analytical approach. We select 2,062 sample firms during 1991-1996 and result using correlation analysis is as follows. Contribution and entertainment expense shows a significantly positive with firm size that is corporate sales except for 1991. The contribution and entertainment expense has a significant positive relation with cash flow, industry contribution level, pre-period contribution level, advertisement, research and development cost, effective tax rate, retained earnings. In the case of debt ratio, the result shows significantly negative relation. Therefore we assert that the contribution and entertainment expenses are made for earnings management.