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Sung-Woo Yun(윤성우),Sun-Ho Go(고선호),Hong-Gun Kim(김홍건),Lee-Ku Kwac(곽이구) 한국기계가공학회 2019 한국기계가공학회지 Vol.18 No.1
The deck floor of a the cargo truck becomesis damaged and aged due to the continuous loading of the loading cargo and external environmental factors. Floor boards made of wood and metal are often used. In the case of wood, the cost is high due to the use of imported wood, and the strength is easily deterioratesd due to environmental factors. In the case of metal materials, the durability is higher than that of wood, but problems are raised due to the effect of major factors that hinder the weight reduction, and the effects of corrosion. In order to replace this stucturestructural design, this study proposed a wood fiber composite using natural raw materials. Woody composites are being used as environmentally and friendly exterior materials with the combined advantages of plastic, and wood,; low cost and low density. However, due to the nature of the woody composites, the properties are differentdiffer depending on the contents of the matrix, reinforcing agent, additives, compatibilizer, etc. In this study, we investigate these problems through analysis of the microstructure and mechanical properties according to proper content and injection molding conditions. As a result, it is considered that the wood deck composite can replaced the current Deck Floor Boardreplace current deck floor boards through continuous continued research and results of this study.
윤성우(Sung-Woo Yun),고선호(Sun-Ho Go),김홍건(Hong-Gun Kim),곽이구(Lee-Ku Kwac) 한국기계가공학회 2018 한국기계가공학회지 Vol.17 No.3
To reduce fuel consumption, research on the weight reduction of vehicles is being actively carried out. Researchers have typically tried to replace metal materials with composites materials, but these materials did not satisfy the required strength and rigidity of a vehicle. Composites are usually not used because of their high cost. There are incomplete studies on lightweight trucks that transport cargo. Therefore, in this paper, we enhance the lightness and mechanical strength through design optimization of the deck frame for a lightweight truck. For that purpose, the side member and cross member, which are mounted on the lower part of the truck to assure the safety of the vehicle and support the luggage load, were targeted. The result of numerical analysis on the safety of the frame was obtained by changing the shape of each cross-section. To verify the numerical analysis, we compared it with the theoretical value of a cantilever beam. As a result, the suitability of the cross-sectional shapes of each frame was confirmed through numerical analysis.
Sung-Soo Choi(최성수),Seung-Tae Han(한승태),Seong-Woo Yun(윤성우) 한국컴퓨터정보학회 2020 韓國컴퓨터情報學會論文誌 Vol.25 No.12
본 연구는 1인 구조자 성인 심폐소생술 방법에 따른 효율성을 알아보기 위한 연구이다. 급성심정지 환자에서 심폐소생술은 유일한 응급처치이며, 이중에서도 가슴압박이 가장 중요하다. 이 연구는 일반인을 대상으로 가슴압박의 선정 부위에 대하여 정확성과 용이성을 비교해보고자 시행하였다. 연구대상자는 심폐소생술을 배우지 않은 대학생 1학년 120명을 대상으로 시행하였고, 자료 분석은 SPSS 22.0 Version을 사용하였다. 가슴압박 부위 선정의 정확도는 명치 두 손가락 위쪽이 유의하게 높았으며(p<.001), 용이성 또한 높게 나타났다(p<.001). 연구 결과 가슴압박 부위를 쉽고 빠르게 선정하는데 있어 표지점을 명치 쪽을 지정하는 것이 더 용이한 것으로 나타났다. 향후 다양한 직군을 통하여 가슴압박 부위를 선정하기 위한 연구가 필요하며, 가슴압박을 진행하는 동안 유지 및 정확도를 확인 할 수 있는 추가적인 연구가 진행되어야 할 것이다. This study is to find out the effectiveness by adult CPR method of a single rescuer. For patients with acute cardiac arrest, CPR is the only first aid, and chest compression is the most important of these techniques. The subjects of this study were freshman, 120 subjects who did not learn CPR, and for data analysis, the SPSS 22.0 Version was used. The accuracy of chest compression site selection was significantly higher in the upper part of the two fingers in the pit of the stomach(p<.001), and the ease was also high(p<.001). In the case of the general public, they select the chest compression area easily and quickly, it turns out that it is easier to designate the landmark toward the pit of the stomach. In the future, through various job groups, research to select the chest compression site is needed, and additional studies should be conducted to confirm the maintenance and accuracy during chest compression.
한방처치를 통한 Methicillin내성 포도구균 감염의 음성화 및 약독화 2례
고창남,윤성우,박성욱,이형철,이상욱,Ko, Chang-Nam,Yun, Sung-Woo,Park, Sung-Wook,Lee, Hyung-Chel,Lee, Sang-Wook 대한한방내과학회 2002 大韓韓方內科學會誌 Vol.23 No.2
These cases were performed on the bases of clinical consideration about patients who had Methicillin-Resistant Staphylococcus aureus(MRSA) infection. One patient was a 67-years-old women who had sequela of inter cranial hemorrhage & inter ventricular hemorrhage, hypertention, urinary tract infection and pneumonia. Clinical symptoms were intermittent fever, sputum, Lt. side hemiparesis and dysphagia. She was chronic, repeated infection state. It could be regarded as "unpreparedness of the spirit which animates and controls the universe; 正氣虛", the oriental term which indicates a condition of chronic disease or general weakness. According to the oriental medicine principle, oriental medicine was taken such as Wunggunza-tang(六君子湯) and the patient had taken a turn for the better. After 3 months, MRSA infection diappeared. The other patient was a 43-years-old women who had Both brain stem infarction, Lt. cerebellar infarction, hypercholesterolemia, urinary tract infection and pneumonia, Clinical symptoms were quadriplegia, dysphagia(levin tube insert state), aphasia, respiration disorder(tracheostomy cannular keep state) and sputum. She was chronic, repeated infection state. It could be regarded as "unpreparedness of spleen energy, unpreparedness of both energy and blood; 脾氣虛, 氣血兩虛", the oriental term which indicates a condition of chronic disease or immunodeficiency. According to the oriental medicine principle, oriental medicine was taken such as Bojungyggi-tang(補中益氣湯), Palmul-tang(八物湯) and the patient had taken a turn for the better. After I month, MRSA was turned into Escherichia coli.
뇌졸중환자에서 한약과 양약의 병용투여가 간장 및 신장에 미치는 영향
박성욱,이형철,고창남,윤성우,한지영,이상욱,Park Sung-Wook,Lee Hyung-Chul,Ko Chang-Nam,Yun Sung-Woo,Han Ji-Young,Lee Sang-Wook 대한한방내과학회 2003 大韓韓方內科學會誌 Vol.24 No.1
Objectives : The purpose of this study was to evaluate whether herbal medication may injure the liver function and kidney function. We clinically studied the changes of biochemistry and complete blood cell count in patients who were hospitalized in Korean hospital. Methods : The subjects were 160 patients admitted in Kangnam Korean hospital, Kyung Hee, whose mean duration of medication was 70 days(min 30, max 252). All patients had been checked biochemistry and complete blood cell count for 30 days since their hospitalization. Results : Aspartate aminotransferase(AST), alanine aminotransferase(ALT), alkaline phosphatase(ALP), blood urea nitrogen(BUN) and Creatinine(Cr) decreased significantly on discharge, compared with the values of admissoin(P<0.05). Total protein significantly elevated on dischrge compared with the values of admisson(P<0.05). Conclusions : This study suggests that even though there are few toxic herbal medicines, in general, herbal medications which are prescribed by oriental medicine doctors should be carefully administered not to hurt liver and kidney function.
강력범죄 피해자의 외상 후 스트레스 증상 및예측요인에 대한 탐색적 연구
김태경(Kim, TaeKyoung),윤성우(Yun, SungWoo),이영은(Lee, YoungEun),이새롬(Lee, Saerom) 한국피해자학회 2018 被害者學硏究 Vol.26 No.1
The aim of this study was to investigate the posttraumatic stress symptoms of violent crime and predictors to the symptoms. For this, we analyzed data of 473 victims registered to the integrated supporting center for violent crime victims who agreed to participate in the study. The results showed that more than 90% of victims experience significant PTSD symptoms, 30% of them were in extreme mental confusion that required medication or hospitalization. There was a significant difference in the severity of sequela according to gender, time since visiting to the center, pre-event adaptation level, and event type. Although the victim experienced more avoidance and hypervigilance symptoms than the family, the psychological distress experienced by the family was not less than that of the victim. Psychological sequela of the events were found to be more severe with more experiences of childhood trauma, lack of ego resilience, low level of perceived social support, strong dissociation tendency, and avoiding coping styles. A result of the stepwise regression analysis, avoidant coping style explained 10.6% of the total variance. Limitations and implications of this study were discussed.