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진상문(Jin, Sang-Mun),양유창(Yang, Yoo-Chang),김세훈(Kim, Sae-Hoon) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06
Currently, the bipolar plates are fabricated mainly from graphite materials. However, metal bipolar plate are getting most attractive due to their good feasibility of mass production and low cost. In this study, metal bipolar plates for fuel cell Vehicles were developed with a concept based on the straight flow patterns to minimize the pressure drop and spring back. And molded gasket apply to the bipolar plate for improve sealing performance. Results show that the metal bipolar plate have a high potential to replace for graphite materials in fuel cell application.
진상문(Sang Mun Jin),양유창(Yoo Chang Yang),금영범(Young Bum Kum),이종현(Jong Hyun Lee),김세훈(Sae Hoon Kim) 한국자동차공학회 2007 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The next generation bipolar plates for 100㎾ fuel cell stacks were developed with a concept based on the straight flow patterns to minimize the pressure drop, decrease flooding in the bipolar plate and maximize the stack power simultaneously. Cell performance tests, pressure and temperature distribution measurements were performed for various flow pattern combinations on the air, H2 and coolant sides. Results show that the stack performance and the power are increased by 12% and 400/0, respectively.
동서 협진 비만클리닉을 이용한 비만환자 37례에 관한 임상 관찰
김미영 ( Mi Young Kim ),문성원 ( Seong Won Moon ),이정한 ( Jeong Han Lee ),박진상 ( Jin Sang Park ),김혜정 ( Hye Jeong Kim ),신병철 ( Byung Cheul Shin ),송용선 ( Yung Sun Song ) 한방비만학회 2003 한방비만학회지 Vol.3 No.1
Objectives: The purpose of this study is to evaluate the effect of treatment in obesity clinic in east-west collaboration center, furthermore to search for how to join and improve east medicine and west medicine more closely. Methods: 37 patients were classified into four groups by Body Mass Index(BMI); normal, overweight, 1st obesity and 2nd obesity groups. Weight, BMI, body fat rate and abdominal fat rate were compared in each group by paired t-test. Results & Conclusions: In distribution of sex, male were 10(27%), female were 27(73%). Mean age was 34±13 and the patients in twenties were the most. Among four groups, the number of 2nd obesity groups was the most. Most patients had a preferance for western medication and ear acupunture therapy. In general we could find the correlation between the effect of obesity treatment and the degree of obesity. The more the obesity degree was, the more weight loss was.
고분자전해질형 연료전지의 CO₂ 공급에 따른 성능변화 측정
최종록(Jong Rock Choi),이상훈(Sang Hoon Lee),진상문(Sang Mun Jin),조형희(Hyung Hee Cho) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
An experimental investigation has been conducted to obtain the effect of O₂ concentration on the performance of PEM fuel cell. The oxygen concentration is an important factor for performance in PEM fuel cell because the fuel cell vehicles use the road air as an oxygen supply. By adding CO₂ gas, which brings undesirable consequences on the performance. we controlled percentage of O₂ gas from the supply air, followed by measuring the voltage. Experimental results show that the output voltage decreased with reducing concentration of O₂ gas. We also conducted theoretical analysis for the effect of O₂ gas concentration, but the value is much lower than the experimental results.
인진 추출물이 마우스 대식세포주인 RAW264.7 세포주의 iNOS 발현 및 superoxide 형성에 미치는 영향
박진상,文錫哉,文九,元秦喜 한국전통의학연구소 1999 한국전통의학지 Vol.9 No.1
Nitric oxide(NO) is synthesized via the oxidation of L-arginine by a family of nitric oxide synthases(NOS), which are either constitutive(cNOS) or inducible(iNOS). The induction of iNOS in tissues can lead to the sustained production of high concentrations of NO which may exert pro-inflammatory effects including vasodilation, edema, cyototoxicity, and its activity can be mediated by various pro-inflammatory cytokine, including interferon γ(INF-γ), tumor necrosis factor, IL-1 and IL-6. The enzyme, iNOS, became a new target for pharmacologcal research with the aim to find new substances for the treatment of chronic inflammatory disorders. Murine macrophages produce large amounts of NO when activated with TEN-γ plus LPS. Murine macrophage-like cell line, RAW 264.7, is a suitable cell model to perform in vitro studies regarding the iNOS system. Artemisin feddei Lev. et Vnt.(Compositae) is a perennial herb growing in Korea. The aerial parts have been used in foik medicine as antiinflammatory, antipyretic, choleretic and diuretic agent. Sesquiterpenelactones were isolated from this plant. In the course of screening for NO inhibitory activity from medicnial plants, the aqueous extract of this plant was found to have a significant activity.
유기용제에 장기간 폭로된 근로자의 정신의학적 기능과 삶의 질
김석재,강순아,유지숙,국승희,윤진상,문재동,이형영 大韓神經精神醫學會 2000 신경정신의학 Vol.39 No.5
연구목적: 본 연구는 Y공단의 제조공정에서 저농도의 유기용제(solvent)에 장기간 노출된 근로자의 정신의학적 기능과 삶의 질을 평가하고자 하였다. 방법: 총 142명의 남성근로자 중 유기용제에 폭로된 군(이하 폭로군) 82명과 폭로되지 않는 군(이하 비폭로군) 60명에게 간이정신진단검사(Symptom Checklist-90-R, SCL-90-R), 인지 및 정신운동성검사 (Critical Flicker Fusion Threshold. CFFT; Choice Reaction Time, CRT;Compensatory Tracking Task, CTT;Digit-Symbol Substitution, DDS) 및 한국판 스미스클라인 비챰 삶의 질 척도(Korean version of the SmithKline Beecham 'Quality of Life' Scale, KvSBQOL) 등을 적용하였다. 두 군간의 비교는 평가치의 평균에 대해 t-검증을 하였고 또한 연령과 학력을 공변인으로한 공변량분석(ANCOVA)을 하였다. 결과: SCL-90-R의 9개 증상 차원과 3개 전체 지표 점수는 두 군이 각각 정상범위였다. 그러나 신체화 (Somatization, SOM), 우울(Depression, DEP), 적대감(Hostility, HOS), 공포불안(Phobic anx-iety, PHOB)의 증상차원과 전체심도지수(Global Severity Index, GSI), 표출증상합계(Positive Symptom Total, PST)의 전체 지표는 폭로군이 비폭로군보다 유의하게 높았다. 인지 및 정신운동성 검사와 삶의 질은 두 군간에 유의한 차이는 없었다. 결론: 이상의 결과는 유기용제가 허용치 이하일지라도 장기간 폭로되는 경우에는 정신의학적 문제를 다소 일으킬 수 있음을 시사하였다. 중심단어:유기용제·근로자·정신건강·정신운동성 기능·삶의 질. Objectives: The aim of this study was to evaluate the psychiatric function and quality of life of the chemical workers who had been exposed to long-term, low-level organic solvents in the Y industrial complex. Method: A total of 144 male workers, of whom 82 were in the exposed group and 60 in the unexposed-control group, were evaluated by using Symptom Checklist-90-R(SCL-90-R), series of neuropsychological tests(critical flicker fusion threshold, CFFT) ; choice reaction time, CRT ; compensatory tracking task, CTT) ; digit symbol substitution test, DSS), and the Korean version of the SmithKline Beecham Quality Of Life scale(KvSBQOL). For the statistical analyses, comparisons of the means of the two groups were performed for each variable with two-tailed t-test as well as ANCOVA including age and education as covariates. Results: For the SCL-90-R, the nine symptom scales and the three global indices were clinically within normal range in both groups. However, the scores on the symptom scales of 'somatization','depression','hostility' and 'phobic anxiety', and those on the global indices of 'global severity index' and 'positive symptom total', were significantly higher in the exposed group than in the unexposed group. In terms of the neuropsychological function and the quality of life, there wes no significant difference between the two groups. Conclusion: These findings suggested that the long-term eposure to mixed organic solvents, even at the low level below the permissible exposure limit, might induce some psychiatric problems. KEY WORDS: Organic solvent·Worker·Mental health·Psychomotor function·Quality of life.