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김진표,이성원,이진욱 龍仁大學校 武道硏究所 2003 武道硏究所誌 Vol.14 No.1
The purpose of this study was to examine the relationship between boxing coaches' type of coaching behavior and player's satisfaction and to provide basic information for efficient training of boxer. From the analysis and discussion of the results, the following conclusions were drawn. 1) Boxing coaches' type of coaching behavior preferred by boxers varied significant according to basic background variables (institution, experience in competitions, playing career). Players lacking experiences in competitions favored all types of coaching behavior. Those with a short playing career preferred disciplinary and instructive behaviors, positive rewarding behaviors and authoritative behaviors while those with a long player career preferred social supportive behaviors, positive rewarding behaviors, and democratic behaviors. 2) Boxer's satisfaction varied partially according to basic background variables (institution, experience in competitions, playing career). Boxers in middle schools showed high satisfaction with athletic performance, and those in high schools showed high psychological satisfaction. Boxers with much experience in competitions showed high satisfaction with athletic performance as well as high psychological satisfaction, and with regard to playing career those with a short playing career showed high satisfaction with athletic performance. 3) Boxers' satisfaction varied according to coaches' type of coaching behaviors. Boxers preferred coaches of disciplinary and instructive behaviors and authoritative behaviors, and when they were trained under such types of coaches they showed high satisfaction with athletic performance. In addition, boxers favored coaches of democratic behaviors but they actually perceived their current coaches as authoritative and showed high psychological satisfaction with their coaches.
포러스콘크리트의 기초물성에 미치는 시멘트페이스트의 유동성 및 진동다짐시간의 영향에 관한 실험적 연구
김무한,백용관,최영욱,강석표,김재환,이성일 忠南大學校 産業技術硏究所 2001 산업기술연구논문집 Vol.16 No.2
This study analyzed the influence of paste fluidity and vibration time for fundamental properties of porous concrete. Results of this study were shown as follows: 1) Even if target void ratio is same, void ratio and compressive strength of porous concrete is different according to w/c, paste flow and vibration time. So, In case of target void ratio, we must consider the influence of w/c, past flow and vibration time. 2) Though w/c and vibration time is same, as paste flow increase, all void ratio, continuous void ratio, and compressive strength decrease and difference between upper and lower void ratio increase. 3) Though w/c and paste flow is same, as vibration time increase, all void ratio and continuous void ratio decrease and difference between upper and lower void ratio increase. Also, compressive strength increase by 10 seconds and decease after 10 seconds. 4) As types of superplasticizer is different, all void ratio, continuous void ratio, and compressive strength is different. So, we must give consideration to paste fluidity and vibration time in order that increase of strength of porous concrete and distribution of uniform void.
Case Reports : Methemglobinemia from Antifreeze Containing Sodium Nitrite
( Gang Wook Lee ),( Yong Jin Park ),( Sun Pyo Kim ),( Seong Jung Kim ),( Soo Hyung Cho ),( Nam Soo Cho ) 대한응급의학회 2013 대한응급의학회지 Vol.24 No.2
Sodium nitrite is commercially used as a coloring agent, food preservative, and corrosion inhibitor. Accidental poisoning with sodium nitrite from contaminated food and water causes gastrointestinal irritation, vasodilatation, and methemoglobinemia with subsequent tissue hypoxia. We describe an outbreak case of sodium nitrite-induced methemoglobinemia following the ingestion of noodles contaminated with industrial antifreeze. The eEight patients involved initially complained that their noodles tasted ``unpleasant`` and soon afterwards experienced nausea, vomiting, dizziness, and fatigue. Some of them noted cyanosis on their lips and fingers. Subsequent investigations demonstrated a high methemoglobin concentration which was corrected by the intravenous administration of methylene blue three hours after the onset of symptoms. The patients made a prompt, uncomplicated recovery and were discharged home 4 four days later. Industrial antifreeze contains sodium nitrite and calcium nitrite. Because an accidental poisoning of industrial antifreeze causes fatal methemoglobinemia, emergency physicians should promptly identify its symptoms and institute treatment with methylene blue promptly. In addition, industrial agencies must caution construction businesses against such contamination events.
소아 다발성 외상 환자의 중증도에 영향을 미치는 위험인자에 관한 분석
이강욱 ( Gang Wook Lee ),김선표 ( Sun Pyo Kim ),김성중 ( Seong Jung Kim ),조수형 ( Soo Hyung Cho ),조남수 ( Nam Soo Cho ) 대한외상학회 2010 大韓外傷學會誌 Vol.23 No.2
Purpose: The purpose of this study is, first, to analyze the risk factors that influence the severity of injury in pediatric multiple trauma patients and, second, to present solutions for the problems related to the treatment of such patients. Our living situations are so complicated that the danger of accidents is truly open to children who are not prepared. We need to draw attention to the increased numbers of various accidents involving children. Methods: We studied patients who visited the Emergency Medical Center at Chosun University Hospital from January 1, 2006, to December 31, 2008. Using medical records, we evaluated the general characteristics: the mechanism of injury, the vital signs, the revised trauma score (RTS), the injury severity score (ISS), and the hemoglibin value, which was checked at the time of visit, and the presence or the absence of emergent on regular surgery. We divided the level of injury as follows: light level (1-8 points), mid level (9-15 points), and serious level (above 16 points). We analyzed the medical data by using SPSS 17.0 for windows. Results: The average age of the patients examined was 8.6 years. The number of 6- to 11-year-old patients was 96, which was the largest, but the degree of injury severity was the highest among infant (0-2 years), according to ISS 7.95(±6.85). The frequency of accidents was highest on sunny days, and most accidents occurred from 16:00 to 20:00. The cause of multiple trauma for children was the greatest in the traffic accident, (95 patients, 49.0%). In addition, the trauma caused by traffic accidents showed the highest ISS value (9.02± 6.42) and the most serious degree (P=0.004). The ISS level of injury (8.40±6.64) for patients moved from a secondary hospital was higher than that (6.49±5.57) for patients who visited the medical center directly. The severity of injury was highest for patients who used a 119 ambulance (8.84±5.80). According to the injured parts of body, Injuries to the arms and the feet most frequent (79 patients, 40.7%), but the level of injury was the highest for internal organs and chest, 16.42± 8.56 and 11.23± 6.97, respectively. Conclusion: We used Abbreviated Injury Scale (AIS) in order to examine the characteristics by injured body part for pediatric multiple trauma patients. Because the degree of injury was the highest for internal organs or the chest, we need to more seriously examine and provide for patients who are suspected of having injuries to the internal organs or the chest. We need to quickly determine the need for surgery in patients with serious injuries to the arms and the feet, which is the greatest in frequency. In particular, we need to consider the surgical care of patients who are not very high in the severity of injury to their brains. (J Korean Soc Traumatol 2010;23:68-74)