국내 섬유 패션 업체의 본사와 해외 생산기지간 정보화 운영 실태 조사

유지선,이원자 한국의류학회 2004 한국의류학회 학술대회논문집 Vol.2004 No.-

The association between the neutrophil-to-lymphocyte ratio and bacteremia in elderly patients admitted to the emergency department

유지선,송환,윤준성,오상훈,임지용,김수현,방효진,김효준 대한응급의학회 2022 대한응급의학회지 Vol.33 No.6

Objective: Bacteremia is a common cause of increased morbidity and mortality in elderly patients, but early diagnosis and identification are complex. The neutrophil-to-lymphocyte count ratio (NLR) is suggested as a useful indicator for diagnosing bloodstream infections. This study evaluated whether the NLR at admission is associated with bloodstream infections in older patients admitted to the emergency department. Methods: A retrospective, multicenter analysis was performed on patients admitted to the emergency department from November 2016 to February 2017. We included patients aged 65 years and older who visited the emergency department with medical problems. Baseline NLR values were measured upon admission to the emergency department. The primary outcome was a positive blood culture. Results: A total of 1,815 patients were included in this study. The median age was 77.25±7.38 years, and bacteremia was identified in 290 older patients (15.9%). The NLR was significantly higher in the bacteremia group (15.95±22.03) than in the non-bacteremia group (8.76±8.74, P<0.001). In the multivariate logistic regression analysis, the NLR was associated with bacteremia after adjusting for confounding factors as continuous variables (odds ratio [OR], 1.033; 95% confidence interval [CI], 1.009-1.057) and categorical variables (NLR ≥10; OR, 2.018; 95% CI, 1.246-3.268). The area under the curve of the NLR was determined to be 0.667 (95% CI, 0.639-0.694). Conclusion: These results indicate that the NLR at admission to the emergency department is associated with bloodstream infections. Early suspicion of bacteremia, by determining the initial NLR value, will help treat bacteremia in elderly patients.

폭발의 위험성에 의한 선박화재의 사고사례 분석

유지선,정영진 한국화재소방학회 2015 한국화재소방학회논문지 Vol.29 No.1

This study analyzed recent cases of ship fires · explosions and investigated their problems and coping plans. Throughanalysis on the statistical figures, it was found that our nation’s situations of maritime accidents by kind during the periodof 2009~2013 showed the ratios of ship accidents caused by fires · explosions was the highest in 2012 with 7.58% (55cases) followed by year 2009 with 3.39% (34 cases), year 2010 with 3.39% (25 cases), year 2011 with 6.03% (57 cases)and year 2013 with 6.74% (43 cases), which indicates a steady increase in the number of ship accidents. Majority of reasonsfor ship fires · explosions were lack of safety awareness. Since those accidents happen on the sea, fires, once theyhappen, tend to get serious due to absence of on board & nearby fire extinguishing facilities, public fire service’s uneasyaccess to them and great influences of natural factors such as wind and etc. Ship fires · explosions are special cases unlikewhat happens to general edifices. So, their coping plans should focus on preventive measures since the damages thosecases bring about can be detrimental. For this reason, it's necessary to research precise evacuation plans, develop shipstructure & materials reinforcing fire resistance to secure more time for evacuation and enhance people's safety awarenessby implementing thorough safety training. 본 연구에서는 최근에 발생한 선박 화재 ·폭발 사고사례의 분석을 통해 문제점 및 대처방안에 대하여 조사하였다. 통계치 분석을 통해 우리나라의 2009~2013년간 사고 종류별 해양사고 발생현황 중 화재 ·폭발로 인한 선박 사고는 2012년 7.58% (55건)으로 가장 높았고, 2009년 4.70% (34건), 2010년 3.39% (25건), 2011년 6.03% (57건), 2013년6.74% (43건)로 지속적으로 증가하는 양상이 나타나는 것을 알 수 있었다. 선박 화재 ·폭발 사고의 대부분의 원인은 안전의식 결여로 인해 발생하였다. 사고발생 장소가 바다이므로 자체의 소화설비와 인근의 소화설비의 부재와 공공소방대의 접근이 용이하지 않고 바람 등 자연적인 요인에 의한 영향이 크게 작용해 화재의 확대가 용이하다. 이는 특수한 화재 ·폭발사고로써 일반 건축물 화재 ·폭발사고와 비교되며 위험성 또한 높기 때문에 예방차원의 대처방안이 매우 중요하다. 이에 신속하고 정확한 인명피난계획을 연구하고 피난할 시간을 더 확보하기 위해 내화성능을 강화할 수 있는 선박구조 및 자재를 개발하고, 철저한 안전교육을 시행해 국민들의 안전의식을 향상시켜야 한다.

스테아릴기를 함유하는 비불소계 아크릴 공중합체의 발수특성

유지선,이성규,곽영제 한국섬유공학회 2019 한국섬유공학회지 Vol.56 No.3

Non-fluorinated acrylic polymers composed of a hydrophobic monomer with a stearyl group, polar monomer with a hydroxyl group, and curable monomer with an epoxy group were synthesized. The hydrophobicity of the synthesized polymers was confirmed by measuring the water contact angle of the polymer films spin coated on a silicon wafer. The contact angle of water was in the range 99−111 °, which indicates a high level of hydrophobicity of the polymer. The poly(ethylene terephthalate) (PET) and cotton fabrics were coated with non-fluorinated acrylic polymer using a simple immersion method. The coated fabric showed a high contact angle of ≥123 °. The water repellency of the fabric treated with the polymer was maintained after washing, with the contact angle greater than 117 °. The maintenance of water repellency after washing was higher in cotton than in PET, as the hydroxyl groups of cotton cross-linked with the non-fluorinated acrylate polymers to improve its durability.

전문대학 여대생의 직업의식과 진로지도방안 연구

유지선 한국농업교육학회 2002 농업교육과 인적자원개발 Vol.33 No.4

전문대학 여대생의 직업의식과 진로지도방안 연구

유지선 한국농·산업교육학회 2001 농업교육과 인적자원개발 Vol.33 No.4

The objectives of this study were 1) to identify the vocational consciousness of female college students, 2) to investigate career preparation, problem awareness, and job search behavior of the female college students, and 3) to suggest the career guidance for them. This study was conducted by review of literature and mailed questionnaire. The results of this study were as follows:1) female college students have rather strong economic-oriented value and strongly want to have lifetime job regardless of their marriage. 2) they tend to decide their career early, but prepare for it very late, due to the insufficient information for the future job. 3) there are some discrimination between male and female students in career guidance and placement. Most of them regard this as result of “social custom and prejudice".4) they usually don't know and have little chance to use the service of their College Career Center, and think special guidance program for female is needed.According to the result of study, recommendations and career guidance for the female college students were suggested.

Synthesis of P3HTs containing amide bonds

유지선,이병용,김선달,김상율 한국고분자학회 2014 한국고분자학회 학술대회 연구논문 초록집 Vol.2014 No.4

메탄산화균을 이용한 Cd(2)과 Pb(2)의 제거

유지선,이희자,김광수,안광호 대한환경공학회 2006 대한환경공학회 학술발표논문집 Vol.2006 No.12

Synthesis of Hydroxyl-terminated P3HT

유지선,이병용,김선달,김상율 한국고분자학회 2013 한국고분자학회 학술대회 연구논문 초록집 Vol.2013 No.10

플라스틱의 연소 시 발생하는 연기 위험성에 관한 연구

유지선,정영진 한국화재소방학회 2019 한국화재소방학회논문지 Vol.33 No.1

본 연구에서는 5종의 섬유강화플라스틱(Fiber Reinforced Plastic, FRP), 폴리스티렌(Polystylene, PS), 폴리카보네이트(Polycarbonate, PC), 폴리프로필렌(Polypropylene, PP), 폴리염화비닐(Polyvinyl chloride, PVC) 판을 콘칼로리미터(Conecalorimeter, ISO 5660)를 이용하여 연소성을 시험하였다. 그 결과 PVC판은 최대열방출률(HRRpeak)이 44.65 kW/m2, 최대평균열방사율(MARHE)이 30.97 kW/m2로 가장 낮게 나타났고, PS판은 HRRpeak은 773.44 kW/m2, MARHE는 399.14kW/m2으로 가장 높게 나타났다. 일산화탄소의 평균(COmean) 발생량은 PC판과 PS판이 최대 3.88배로 가장 많이 발생하였고, 반대로 이산화탄소(CO2mean)의 평균 발생량은 PS판과 PP판이 최대 4.88배로 가장 많이 발생하였다. 또 PS판은다른 플라스틱보다 연기성능지수(SPI)가 74.81%~95.99% 감소하였고, 연기성장지수(SGI)는 76%~300%, 연기강도(SI)는 917.73%~9607.57% 증가하여 연기위험성이 높다는 것을 알 수 있었다. 따라서 PS판은 열적 측면에서나 연기 측면모두 연기로 인한 인명피해의 위험성이 가장 높았음을 알았다. In this study, the combustibility of five types of plastic plates, fiber reinforced plastic (FRP), polystyrene (PS),polycarbonate (PC), polypropylene (PP), and polyvinyl chloride (PVC), were tested using a cone calorimeter (ISO 5660). The PVC plate showed a 44.65 kW/m2 lower peak heat release rate (HRR) and a 30.97 kW/m2 lower maximum averagerate of heat emission than the other four types of plastics, whereas the PS plate showed a 773.44 kW/m2 higher peak HRRand 399.14 kW/m2 higher maximum average rate of heat emission. The PC plate and PS plate showed the highest HRRby a maximum of 3.88 times in COmean yields, while the PS pate and PP plate showed the highest HRR by a maximum4.88 times in CO2mean yields. In addition, the smoke performance index (SPI) of the PS plate decreased by 74.81%∼95.99%; the smoke growth index (SGI) increased to 76%∼300%; the smoke intensity (SI) also increased to 917.73% ∼9607.57%, and the danger of smoke increased. The PS plate was found to have the highest risk of life damage due tosmoke on the thermal and smoke sides.