생체 인식 정보 검출을 위한 Watershed 기반 Texture 병합에 관한 연구

김진만,김성현,조상현,김태형,김두영 東亞大學校附設情報技術硏究所 2005 情報技術硏究所論文誌 Vol.12 No.2

this paper presents the method that extracts by using watershed algorithm the area which is available for the feature factor in the iris. The inputted image is preprocessed and transferred to the texture block pattern by Polar Coordinate System Transformation. In this paper, the iris feature area is extracted from the image of Texture Block Pattern using Watershed Algorithm. The extracted area is indexed by average value and size of the feature area. After the position information of the feature area is rearranged by Polar Coordinate System Inverse-Transformation. In result, the proposed method showed that is possible to extract the definite iris feature.

부산지역 수돗물과 지하수의 중금속 농도

김준연,손지언,김형수,김두희,원미숙,김인식,이혜령 동아대학교 산업의학연구소 2000 산업의학연구소 논총 Vol.- No.5

This study investigated mean airborne CO concention of 15 workplaces, suspected of CO exposure and conducted self-reported questionnaire completion and indirect COHb concentration measure using Micro II Smokerlyzer to healthy 702 adult subjects from 1999 May to 1999 September in order to find a relation of CO exposure and occupational factors, socioeconomic factors, and health related behaviors and confirm the related conditions in the screening test for CO exposure. The results of this study were summarized as follows : 1. In the CO exposed and non exposed group, COHb concentrations of the smokers were 2.55±0.96% and 2.21±0.97% and that got a statistically significant difference, There were not statistically significant differences in the age and total smoking index. Passed times after the last smoking, Working time/day, and working duration were statistically significant difference (p〈0.05). 2. In the CO exposed and non exposed group, COHb concentrations of non-smoking group were 0.94±0.35% and 0.68±0.47% and that got a statistically significant difference. There were not statistically significant differences in the age and working duration but Working time/day was a statistically significant difference(p〈0.05). 3. In the CO exposed group, r-square of multiple regression of the smokers was 38.5 % and passed time after the last smoking, working time/day, and job category were statistically significant differences (p〈0.05). And r-square in the CO non-exposed group was 38.3 % and age, passed time after the last smoking, and total smoking index were statistically significant difference. 4. In the CO exposed group, r-square of multiple repression of the non-smokers was 66.3% and job category and airborne CO concentration were statistically significant differences(p〈0.05). But r-square of non-smokers in the CO non-exposed group was 1.0% and there was not a statistically significant difference(p〈0.05). 5. In the smokers of CO exposed and non exposed groups, relation of COHb concentration and passed time after the last smoking was expressed as exponential function, Y = 2.9182e-0.0083x and r-square of this function was 37.4%. Therefore it was more than 150 minutes that passed time after the last smoking was when COHb concentrations were measured as less than 1%. In conclusion, variable, that was statistically significant to COHb concentraion in the both CO exposed and non-exposed smokers, was a passed time after the last smoking. We suggest that you have to restrict the smoking of smokers at least 150 minutes in the exposed and non exposed group before COHb concentration measure in order to exclude smoking effects

안근성 중증근무력증이 동반된 갑상선 기능항진증의 임상상 : Report of Six Cases

서지영,김두만,김현규,최철수,임성희,유재명,최문기,유형준,박성우,김형철,송홍기,김덕환 대한내분비학회 2000 Endocrinology and metabolism Vol.15 No.4·5

침 치료가 오십견(五十肩) 환자의 적외선 체열촬영에 미치는 영향

김건형,이로민,남동우,김종인,임사비나,이두익,최도영,이윤호,이재동 경희대학교 동서의학연구소 2006 東西醫學硏究所 論文集 Vol.2006 No.-

Objectives : To observe the effect of acupuncture treatment on Digital Infrared Thermographic Imaging(DITI) in frozen shoulder patients. Methods : 17 voluntary patients received acupuncture treatment on LI15, TE14, GB21 and Master Dong's acupuncture points, Shin-gwanand Gyun-joong, twice a week for 4 weeks. The patients were instructed to practice self exercise during their daily lives. Evaluations were made before treatment, after 1 week of treatment, after 2 weeks, 3 weeks and after 4 weeks of treatment. Constant Shoulder Assessment(CSA), Shoulder Pain and Disability Index(SPADI), Range of Motion(ROM) and the patient's satisfaction concerning the treatment was measured by Visual Analogue Scale(VAS). DITI was measured before treatment and after 4weeks of treatment. The obtained data was analyzed. Results : CSA, SPADI, VAS, adduction and extension showed significant(p<0.05) improvement. Abduction and flexion both improved after 4 weeks of treatment, but the improvement was statistically insignificant(p>0.05). DITI showed improvement but the improvement was insignificant(p>0.05). Conclusion : 4 weeks of acupuncture treatment significantly improved CSA, SPADI, VAS, adduction and extension in frozen shoulder patients(p<0.05). The improvement of abduction and flexion after 4 weeks of acupuncture treatment was insignificant(p>0.05). DITI results improved after 4 weeks of acupuncture treatment. But the change of thermal difference was insignificant(p>0.05).

표피 성장인자(Epidermal Growth Factor)가 창상 치유에 미치는 효과에 대한 실험적 연구

김성우,홍성표,이두형 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.1

Wound healing of the skin and soft tissue defect is accomplished by contraction, re-epithelization, collage synthesis, and generation of granulation tissue. In the full-thickness skin wound, contraction plays an important role and in the split-thickness skin wound, re-epithelization plays an important role. This study was conducted to clarify the effect of epidermal growth factor(EGF) in wound healing. We used the 30 Wistar rats which were divided into 2 groups, full-thickness wound group and split-thickness wound group. In the split-thickness wound group, 30 wounds were created in depth of 0.02mm by using the Padgett dermatome which were divided into 2 subgroups experimental and control. In the full-thickness wound group, 30 wounds were created by excision of full-thickness skin and panniculus carnosus which were divided into 2 subgroups experimental and control. In the experimental groups, the wounds were treated with EGF cream(10㎍/dl) and compared with control groups which were treated with Silvadene cream. The results were analyzed and summarized as follows; 1. EGF had a significant effect on re-epithelization of split-thickness wounds. 2. EGF had an effect on contraction of the full-thickness skin wounds. 3. Histologically, in the experimental subgroup, re-epithelized epithelium was thicker and keratinocytes were more increased, the collagen fibers were organized in a linear manner and connective tissue was matured faster than those of the control. In conclusion, ⅰ) EGF has a significant effect on the re-epithelization and contraction, and the wounds treated with EGF showed faster and better healing and ⅱ) the healed wounds treated with EGF were more colsely resembled the surrounding normal tissue.

四肢의 Scar Revision에 있어 Modified Millard's Trick의 利用

金勳男,崔性玔,李斗炯,李圭源,皇甫宗演 大韓成形外科學會 1976 Archives of Plastic Surgery Vol.3 No.1

No matter how various methods may be tried, for scar repair of extremities, the results were not so acceptable unfortunately. Of these procedures, Millard's trick (The Double-Breasted Vest Principle) is the one of most popular methods and which has been loved by many surgeons, esp, plastic surgeons, up to date. However, even this method couldn't satisfied us, because of undesirable disadvantages, and our new repair method, entitle "Modified Millard's Trick Method" was designed with supplement of disadvantages of Millard's Tric in mind and has been used in attempt to prevent recurrence of the usual spread. This approach is advocated for scars in area where stretch-ing is usual or where a careful regular repair has failed to prevent it. If there is any depression associated with the scar, this is corrected simultaneously by advancing both skin flaps in opposite direction. We have tired this new method for 1- cases of patients, esp. for relatively wide linear scar (over 5cm) on extremities.

치과치료시 미취학 아동의 행동반응에 영향을 주는 요인에 관한 연구

김형두,차문호 大韓小兒齒科學會 1984 大韓小兒齒科學會誌 Vol.11 No.1

Eighty children, aged from 2 years 8 months to 5 years 1 month old, were examined to study the relationship between the preschool children's response at dental visit and the influencing factors. The results were as follows: 1. There was no significant relationship between the sexes and the children's response. 2. Children who experienced the painful dental treatment demonstrated significantly more negative dental response. 3. Children who showed negative dental behavior at last dental visit demonstrated significantly more negative dental response. 4. Children of mothers with high anxiety scores demonstrated significantly more negative dental response. 5. Children who were unpleasant at hospitaization demonstrated significantly more negative dental response. 6. Children who thought they had dental problems demonstrated significantly the most negative dental response. 7. Children who abhorred the medical treatment demonstrated significantly more negative dental response.

파라핀에 포매한 형질세포종양 조직에서의 CD56의 발현 증가와 진단적 유용성

김석형,박찬식,최은영,강현욱,박성희,정두현 대한병리학회 2001 Journal of Pathology and Translational Medicine Vol.35 No.3

敎役者의 資質과 敎徒 例會 出席 增減의 關係硏究 Ⅰ

金炯斗 圓光大學校 圓佛敎學硏究會 1975 圓佛敎學硏究 Vol.7 No.-

租稅法原則으로서 納稅者主義

金斗炯 강남대학교 1998 (강남대학교)논문집 Vol.32 No.3