무선 근거리 통신망에 적용 가능한 정보보호 규격

염흥열,윤호선,김상필,이강석 순천향대학교 부설 산업기술연구소 1997 순천향 산업기술연구소논문집 Vol.3 No.2

본 논문에서는 무선 근거리 통신망에서의 프로토콜 구조를 분석한 후, 이를 바탕으로 무선 근거리 통신망에 적용 가능한 정보보호 규격을 제시하고, 기존의 보안 알고리듬의 문제점을 제시하며 그에 대한 해결 방안을 제시하여 정보보호 서비스를 실현하기 위한 정보보호 메카니듬을 도출한다.

人工海水에 의한 複合組織鋼의 表面腐蝕이 疲勞破壞强度에 미치는 影響

吳世旭,姜鎬珉,李悅宰 東亞大學校 大學院 1986 大學院論文集 Vol.11 No.-

The influence of seawater corrosion on fatigue life at low stress level appears to be larger than that at high stress level about M.E.F. dual phase steel. Especially, the variation-range between high stress level and low stress level is large in the sea bottom corrosion of 250 hours and 1000 hours about S-N curves. According to corrosion time and corrosion conditon the amount of reduction of fatigue limit and fatigue life is varied. Fatigue limit and fatigue life for sea surface corrosion condition is lower than those for sea bottom corrosion condition and the influence of sea surface corrosion of fatigue life is large. It is appeared the relation between fatigue length and the number of cycle is depended on stress level, corrosion time and corrosion condition and corrosion pits occurred by seawater corrosion are become the cause of micro-crack. The variation-range of the crack propagation rate for low stress level is larger than that for high stress level. Portions of these fracture surface don't occur plastic deformation by S.E.M observation. However, these are found quasi-cleavage fracture that occur seperate fracture.

공황장애에서 Paroxetine 단기약물치교가 심리적 상태에 미치는 영향

이소영,김지혜,김율리,강은호,이동수,유범희 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.3

공황장애에서 Paroxetine 단기약물치료가 심리적 상태에 미치는 영향

이소영,김지혜,김율리,강은호,이동수,유범희 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.3

Objectives : This study was designed to evaluate clinical effect of paroxetine treatment and to explore psychological Pre-dictors of treatment response. Methods : Patients (n=26) who met DSM-IV criteria for panic disorder with or without agoraphobia were treated by Pa-roxetine for 12 weeks. We assessed symptom improvement using Clinical Global Impression (CGI), and clinical characteristics using Anxiety Sen&itivity Index (ASI), Anxious Thoughts and Tendencies (AT & T), Agoraphobic Cognition Questionnaire (ACQ), Body Sensation Questionnaire (BSQ), Beck Anxiety Inventory (BAI), and Beck Depression Inventory (BDI). T-test, correlation analysis, and stepwise multiple regression analysis were performed. Results : Panic patients showed significant improvement in seventy of illness and each clinical characteristic after 12 weeks of paroxetine treatment. There were significant correlations among severity of illness, anxiety, and depression, and subjective seventy was related with catastrophic thoughts. The more catastrophic thoughts and the higher sensitivity of body sensation, Patients had the worse symptom improvement they shorved. Multiple regression analysis showed that catastrophic thought related to agoraphobia was the best predictor of symptom improvement (22%). Conclusion : This study suggests that short-term treatment of paroxetine is effective in panic disorder with or without ago-raphobia, and that catastrophic thought could be a predictor of poor treatment response. Thus cognitive intervention on Catastro-phic thoughts may play an important role in symptom improvement in panic disorder.

Endogenous Anabolic Hormonal and Growth Factor Responses to Resistance Exercise in Ginseng and / or Carbohydrate Ingestion

(Ho Youl Kang) 한국운동생리학회 1999 운동과학 Vol.8 No.3

Endogenous Anabolic Hormonal and Growth Factor Responses to Resistance Exercise in Ginseng and/or Carbohydrate Ingestion. Exercise Science, 8(3): 393-404, 1999. Ginseng, a heGrbal plant, has been ingested by many sport players in China, Japan, and Korea in order to improve their stamina and rapid recovery from injuries. However, due investigation has not been given to the ergogenic effects of ginseng. To examine the effects of ginseng and/or carbohydrate supplements on the hormonal stale, eight male college students were randomly given water (CON), 20g of ginseng root extract (GIN), carbohydrate (CHO; 1.5g/㎏ body wt), or ginseng-carbohydrate (GIN/CHO; 20g ginseng and carbohydrate 1.5g/㎏ body wt) treatment immediately after a standardized weight-training workout. Venous blood samples were drawn before and immediately after exercise and during 2h recovery. The exercise induced elevation in lactate and growth hormone immediately after exercise and at a 15 min postexercise, respectively. During the 2h recovery period, CHO and GIN/CHO treatments increased the level of plasma insulin and decreased that of plasma cortisol much more than CON and GIN treatments did. Experimental supplements had no effects on IGF-I and testosterone. No significant difference exists either between GIN and CON or between CHO and GIN/CHO on anabolic hormonal and growth factor responses. Therefore, these results suggest that the ingestion of ginseng root extract does not affect the hormonal status, but the carbohydrate consumption does affect the plasma insulin and cortisol concentrations during the recovery period and at the 60 min postexercise, respectively.

Effects of Pyruvate Supplementation and Exercise Training on Body Composition of Obese Zucker Rats

( Kang Ho-youl ) 한국체육학회 1998 한국체육학회지 Vol.37 No.1

The effects of exercise training, pyruvate supplementation, and the combination of these two treatments were examined on body composition of obese (fa/fa) Zucker rats. Obese rats were randomly assigned to one of the following groups: control diet (Con), control diet/training (Con-Tr), pyruvate diet (Pyr), or pyruvate diet/training (Pyr-Tr). The control diet consisted of 22.0% protein, 12.2% fat, and 65.8% carbohydrate. The pyruvate diet was the same as the control diet except Ca^(++)-pyruvate was substituted for 6.3% of the carbohydrate (dextrose). Training consisted of treadmill running 5 intervals of 18 min duration at a speed of 22 m/min 5 days per week for 8 weeks. Daily food consumption and weight change were recorded for the entire experimental period to determine calorie-conversion efficiency. After 5 weeks of treatment, plasma lipids were measured, followed a week later by expired gas analysis from which resting VO₂, respiratory exchange ratio (RER), and caloric expenditure were determined. In the last week of experimentation, liver glycogen and triglyceride concentrations were measured and body composition was analyzed by both carcass analysis and EM SCAN (electromagnetic impedance). Pyr and Pyr-Tr rats exhibited less weight gain and lower calorie-conversion efficiency relative to Con rats. Liver triglyceride concentrations in Pyr and Pyr-Tr rats were almost 2-fold greater than Con and Con-Tr rats. Pyr and Pyr-Tr rats had significantly lower plasma triglyceride levels than Con and Con-Tr rats, but significantly greater plasma total and HDL cholesterol concentrations. Resting VO₂ (㎖/min/㎏ and ㎖/min/㎏FFM) was significantly greater in Con-Tr rats than Con, Pyr, or Pyr-Tr rats. Basal caloric expenditure (㎉/min/㎏) was significantly greater in Con-Tr (0.064 0.008 ㎉/min/㎏), Pyr (0.060±0.007 ㎉/min/㎏), and Pyr-Tr (0.061±0.008 ㎉/min/㎏) rats than Con rats (0.057±0.012 ㎉/min/㎏). Pyr rats had significantly lowered RER values than Con rats. Relative body fat in Pyr rats (44.3±0.8 %) was slightly greater than that in Con rats (42.5±1.0 %), whereas Con-Tr rats (38.6±0.9 %) had significantly lower percent of body fat than Con rats (42.5±1.0 %). In addition, Pyr rats had significantly greater percent body fat that Pyr-Tr rats (41.1±0.4 %) which was not significantly different from those of Con and Con-Tr. These results suggest that pyruvate supplementation causes some metabolic alterations associated with fat reduction, but does not alter the body composition unlike high intensive exercise training.

The implication of foods and supplements for exercise Performance : Influence of starch , starch - protein , glucose and glucose - protein ingestion before exercise on glycemic , insulinemic , and substrate oxidation responses

(Ho Youl Kang) 한국운동영양학회 2000 2000 International Congress on Exercise Nutrition Vol.- No.-

N/A

Disciplinary Sport Physiology - : The Effects of Exercise Training on Body Composition of Obese Zucker Rats

Ho Youl Kang,Soo Chun Lee,Duk Il Park,Bong Ann Kwan,J . L . Ivy 한국체육학회 1995 국제스포츠과학 학술대회 Vol.1995 No.-

(The)effects of 3-carbon diets on appetite and metabolic responces of rat

Kang, Ho-Youl 경북대학교 체육과학연구소 1996 체육과학연구지 Vol.12 No.-

Age group analysis of patients with dog bite injuries who visited a single regional emergency medical center and factors affecting wound infections

( Dong Ho Kang ),( Jea Yeon Choi ),( Woo Sung Choi ),( Jae Ho Jang ),( Jin-seong Cho ),( Sung Youl Hyun ) 대한외상학회 2022 대한외상학회지 Vol.35 No.2

Purpose: The aim of this study was to analyze by age group the characteristics of patients with dog bite injuries, as well as determine which factors were associated with wound infections in those patients. Methods: We reviewed patients with dog bite injuries who presented to Gachon University Gil Medical Center in Incheon, Korea from January 1, 2014 to December 31, 2018. They were classified by age group: children (0-18 years), adults (19-59 years), or elderly (≥60 years). Event profiles, wound characteristics, and infections were compared across these age groups. Multivariable logistic regression was used to identify factors associated with wound infections. Results: Of the total 972 dog bite injuries, 272 (28.0%) were in children, 606 (62.3%) were in adults, and 94 (9.7%) were in the elderly. The median age was 30 years (interquartile range, 16-48 years) and the majority of patients (60.5%) were female. The most common place of injury was at home (73.8%) and indoors (77.0%). In children, the head and neck were the most frequent sites of injury (43%), while the most frequent site in adults and the elderly (50.8% and 59.6%, respectively) was the upper extremity. The odds ratio (OR) for wound infection was 3.997 (95% confidence interval [CI], 1.279-12.491; P=0.017) for head and neck injuries and 3.881 (95% CI, 1.488-10.122; P=0.006) for lower extremity injuries. The OR for wound infection was 4.769 (95% CI, 2.167-10.494; P<0.001) for significant injuries. Elderly patients had a higher risk for wound infection than other age groups (OR, 2.586; 95% CI, 1.221-5.475; P=0.013). Conclusions: When analyzing patients with dog bite injuries, differences across age groups were found, with the elderly at the highest risk for significant injury and wound infection. It is recommended that age-specific approaches and strategies be used to prevent dog bite wound infections.