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.

곡관의 손상압력에 미치는 내부 감육결함의 영향 평가

김진원,김태순,박치용 한국안전학회 2003 한국안전학회지 Vol.18 No.4

In the present study, three-dimensional finite element analysis was performed to investigate the effects of internal wall thinning defect on the failure pressure of elbow in the piping system and to develop the failure pressure evaluation model. From the results of finite element analysis, the failure pressure was derived by employing local stress criteria, and the effects of thinning location, bend radius, and defect geometry on the failure pressure of internally wall thinned elbow were investigated. Also, based on these investigations and previous model developed to estimate the failure pressure of elbow with an external pitting defect, the failure pressure evaluation model to be applicable to the elbow containing an internal thinning defect was proposed and compared with the results of finite element analysis. The failure pressure calculated by the model agreed well with the results of finite element analysis.

최대 암에르고미터 운동 시 경험 유·무에 따른 척수 장애인의 환기역치 비교

김태수,김성수,윤성진,황부근,이동희,이강우 한국특수체육학회 2004 한국특수체육학회지 Vol.12 No.3

The purpose of this study was to determine the effect of state for training at the VT using other relative physical factors as like a VT-Sec, VT-VO2peak, VT/VO2peak%, VO2peak, VT-HRpeak, VT/HRpeak%, HRpeak, with individuals with spinal cord injuries. The participants were composed of 7 spinal cord injured wheelchair basketball athletes who are involved with regular activity, 5 spinal cord injured sedentaries who are not involved any regular activity. The statistical procedures used to the analysis were unpaired T-test. The results were as follows; First, the significant differences in VT-Sec, VO2peak were observed between 2 groups. Second, the validity of 44-72VT/V O2peak% and 56.78VT/HRpeak% is suggested as an alternative exercise intensity by individuals with all spinal cord injuries.

기초노령연금제도와 노인장기요양보험제도의 발전방안에 관한 연구

김태진 大邱大學校 社會科學硏究所 2009 社會科學硏究 Vol.15 No.1

인구의 고령화는 전세계적인 추세이며, 우리나라의 노인인구 증가속도는 세계 어느 나라보다 빠르게 진행되어 고령사회에 접어들게 되었다. 인구의 고령화는 국가경제, 일상생활, 가족관계뿐만 아니라 사회보장제도 등 사회 전반에 걸쳐 변화가 일어나고 있다. 특히 사회안전망의 사각지대에 놓여있는 저소득노인에 대한 소득보장제도나 노인성 질병 등으로 일상생활이 불편한 노인들에 대한 요양보호는 노인들의 복지욕구의 핵심으로 등장하고 있다. 이러한 시대상황과 복지욕구에 대처하기 위한 노인복지정책으로서 기초노령연금제도와 노인장기요양보험제도가 2008년부터 도입 시행되고 있으므로 노인복지정책 차원에서 양 제도를 분석하여 제도적 정착 방안을 모색하는 것은 그 의의가 크다고 할 수 있다. 이와 같은 맥락에서 양 제도를 적용대상, 급여, 전달체계, 재정 측면에서 분석한 결과 기초노령연금제도와 노인장기요양보험제도는 시대상황과 노인의 복지욕구에 대응하기 위한 사회보장 프로그램으로 제도화되었으나 제도의 도입 필요성만을 강조한 나머지 준비 부족, 사회보장제도와 관련 제도 전체적 맥락에서의 유기적인 관계 및 조정의 미흡 등 제도의 미숙으로 시행 초기에 많은 문제점이 나타나고 있다. 따라서 이들 개별 제도 차원의 개선방안을 모색할 것이 아니라 사회보장제도 전체적 맥락에서 보완책이 마련되어야 할 과제를 안고 있다. 즉, 노인복지정책으로서의 기초노령연금제도는 소득보장제도인 국민연금제도, 국민기초생활보장제도와의 관계 설정이 필요하며, 노인장기요양보험제도는 국민건강보험제도, 의료급여제도, 보건사업과의 관계 설정을 통해 제도적 보완이 이루어져야 할 것이다.

혐기성 소화반응에서 Aeration 유무에 따른 수소가스 발생 변화

김태형,이명주,장현섭,황선진 경희대학교 2006 環境硏究 論文集 Vol.15 No.-

This study was proceeded to know affect of the aeration on the anaerobic digest reaction by operating the acid reactor and hydrogen reactor and take the aeration at the feeding period of sludge in hydrogen reactor. All experiments were conducted at 35℃ using mineral salts-gluco-se(20 g/L) medium. In the acid reactor, the methane gas production was lasted during the an-aerobic reaction period. In the hydrogen reactor, the hydrogen gas production was lasted during the 9 days, especially high production of hydrogen occurred in 6∼9 days. The initial production of methane gas in hydrogen reactor was limited by aeration which to deteriorate the activity of methanogen, but production of methane gas was increased after 12 days. At the time to produce the hydrogen gas in the anaerobic digestion, the aeration reduce the activity of metanogen which known as obligate anaerobes, the created hydrogen can't covert to methane gas and keep the high production of hydrogen. And we think that hydrogen reactor have to take the occasional aeration to keep production of hydrogen cause the long SRT induce the activation of metanogen.

한양대학교 (안산 캠퍼스) 주변 담수호의 수질분석

김용건,원호식,경진범,김동국,홍태기 漢陽大學校 環境科學硏究所 2000 環境科學論文集 Vol.21 No.-

본 연구의 목적은 한양대학교(안산캠퍼스) 주변 호수들의 수질과 물의 오염 상태를 조사하기 위해서이다. 수질은 물의 온도, pH 화학적 산소 요구량(CODMn), 총 질소(T-N), 총 인(T-P), 부유물질(SS), 그리고 중금속(Zn, Cd, Pb, Cu, As, Cr(VI), Hg)을 측정했다. 호수들의 수질등급은 환경처에 의해 평가된 등급V보다 더 낮았다. 한양대학교(안산캠퍼스) 주변의 모든 저수지들은 생활폐수, 그리고 산업폐수의 유입으로 이미 심각하게 오염되어 있다. 그러나 중금속의 오염은 관찰되지 않았다. 만약 폐수의 처리가 확립되지 않는다면 한양대학교 주변 저수지들의 수질은 더욱악화될것으로 사료된다. The objective of this study was to investigate the water quality and status of water pollution in the lakes around Hanyang University (Ansan campus). Water quality was determined by monitoring water temperature, pH, chemical oxygen demand(CODMn), total nitrogen (T-N), total Phosphorus (T-P), suspended solids (SS), heavy metals (Zn, Cd, Pb, Cu, As, Cr(VI) and Hg). The level of water quality of lakes was lower than the level V estimated by the Enviroment Ministry. All of the reserviors around Hanyang University (Ansan campus) had been already seriously polluted by inflow of wastewater from residents, animal husbandries and industries. However, heavy metal pollution was not observed. It is recommended to establish plans for water quality improvement for the reserviors around Hanyang University before it gets worse.

불안과 우울의 예언변인들에 대한 탐색 연구(Ⅱ) : 잠재적 불안과 우울집단을 중심으로

이진환,김태희 부산대학교 학생생활연구소 2000 硏究報 Vol.32 No.1

본 연구에서는 잠재적 불안과 우울집단을 예언하는 변인들을 탐색하였다. 전체 2286명의 응답자들(남자, 1074; 여자, 1212) 중에서 144명이 잠재적 불안집단으로 116명이 잠재적 우울집단으로 선별되었다. 잠재적 불안집단은 불안점수에서 SD 1.5 이상이고 우울점수에서 SD 1.5 이하인 응답자들로 구성되어 있으며, 잠재적 우울집단은 그 반대이다. 이렇게 함으로써, 본 연구에서는 (불안만을 가지거나 우울만을 가지는) 순수한 사례들만을 선별하였다. 불안과 우울을 포함하여 총 17개의 변인들이 측정되었다. 본 연구의 결과는 두 변인, 즉 주거형태와 불만/분노가 잠재적 불안집단을 예언하는 것으로 나타났고, 세 변인, 즉 주거형태, 불만/분노, 그리고 양육태도가 잠재적 우울집단을 예언하였다. 본 연구자들은 이와 같은 결과를 불안과 우울간의 관계에 초점을 두어 논의하였다. Focused on the groups of potential anxiety and derpession the present study explored the variables predicting anxiety and depression. By screening among total 2286 participants(Male, 1074; Female, 1212), we extracted potential anxiety group and potential depression group from total sample. The potential anxiety group consisted of 144 respondents of SD 1.5 or more scores on anxiety scale and SD 1.5 or less scores on depression scale and vise versa was true in 116 potential depression group members. Total 17 variables including anxiety and depression was measured in this study. The resualts found in this study are following: (1) In the potential anxiety group, the predicting variables of anxiety were two variables, dwelling type and anger. (2) In the potential depression group, the predicting variables of depression were three variables, dwelling type, anger, and parenting style. We discussed such results in terms of relationships between anxiety and depression especially focused implication of such results about 'common latent structures' of anxiety disorder and depession disorder.

갑상선기능저하증 이환견에 대한 치료 증례

김혜원,이선희,임수정,박형진,김태신,송은식,송근호 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2009 動物醫科學硏究誌 Vol.16 No.1

A 10-year-old, male, poodle dog was referred to the Veterinary Medical Teaching Hospital of Chungnam National University because of continuous cough and cardiomegaly. Weight gain, lethargy, unwillingness to exercise and decreased activity was revealed on history. Obesty and alopecia was also observed on physical examination. Hypercholesterolemia and increased ALP was revealed on blood exam. So, evaluation of thyroid gland function was performed and cTSH concentration was increased. tT4 and fT4 concentrations was decreased. Results of a history, physical examination, blood exam, and thyroid gland fuction test support a diagnosis of hypothyroidism. Initial therapy with sodium levothyroxine was indicated. On 32 days after treatment of hypothyroidism, clinical signs was relieved and cTSH concentration was decreased, tT4 and fT4 concenctrations was increased.

세라믹 캔들 필터 주위의 분진 속도분포 측정

고용서,김승태,정진도 공주대학교 자원재활용 신소재 연구센터 1999 1차년도 센터 성과집 Vol.1999 No.-

본 연구는 독일 Schumacher의 1m 크기의 세라믹 캔들 필터가 1개 설치된 실험장치를 구성하여 집진시 단일 필터 주위에서의 분진 속도분포를 PDPA를 이용하여 측정하고, 분진층의 유무와 분진 투입 위치에 따른 분진 속도분포의 변화를 관찰하였다. 측정 결과 집진이 계속되어 분진층이 발달함에 따라 접진 속도가 감소됨을 알 수 있었다. 특히, 투입구가 위치하는 필터표면에서 집중적으로 분진층이 발달하여 이곳에서의 분진 속도 감소가 크게 나타났다. 그리고 필터내부와 압력용기부사이의 압력 차에 의한 필터 표면에서의 분진 속도 평균값은 0.28m/sec 이었다. 또한 분진 투입을 암력용기부 하단에 위치한 투입구로 투입하였을 때 필터 주위의 분진의 고른 속도분포를 관찰할 수 있었다. The experimental set-up with a 1m long ceranic candle filter of Schumacher(Germany) was built in this work. The dust velocity field around the filter was measured using PDPA. The effects of dust cake laver and dust inlet position on the dust velocity field were also analyzed. It was found that the filtration velocity decreases as the dust cake builds up on the filter. The filtration velocity largely decreases around the filters near the dust inlet since the dust cake tlevelops fast there. The average dust velocity on the filter due to the pressure difference through the filter was measured to be 0.28m/s. More uniform dust velocity field around the filter was obtained when feeding dust in a lower position of the pressure vessel.

개에서 발생한 신우신염 증례

유건우,이선희,임수정,박형진,김태신,송은식,송근호 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2009 動物醫科學硏究誌 Vol.16 No.1

A 6 years old Schunauzer dog (7.2kg, intact female) with history of hematuria for two days was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Complete blood cell count showed no significant abnormalities and serum chemistry profile showed increased phosphate profile. On urinanalysis, there was evidence of bacterial infection. On ultrasonographic evaluation, irregular renal contour and increased echogenecity, pelvic and uretral dilation, and thickening of urinary bladder wall were observed. Based on these finding, the dog was diagnosed as pyelonephritis. The dog was treated with antibiotics based on antimicrobial susceptibility test results, then successfully resolved after 8 weeks of treatment.