함산소불소화법을 통한 다공성 폴리에틸렌막의 파울링현상 감소연구

강수연,임지원,정성일,Kang, Su Yeon,Rhim, Ji Won,Cheong, Seong Ihl 한국막학회 2014 멤브레인 Vol.24 No.6

소수성의 폴리에틸렌 다공성막 표면에 오염물질이 흡착됨으로써 발생되는 파울링 현상으로 인한 투과도 감소 문제를 해결하고자 함산소불소화법을 이용하여 막 표면을 친수화 하였다. 함산소불소화 처리 후 접촉각은 $93^{\circ}$에서 $50^{\circ}$까지 감소하였고, 수투과량은 60% 이상 증가하였다. 또한, 모델오염물질 Albumin (form bovine serum, BSA), Humic acid sodium salt (HA), Alginic acid sodium salt (SA) 100 ppm의 수용액을 이용하여 투과도 평가 실험을 수행한 결과 막이 친수화 됨에 따라 오염물질이 흡착되는 정도가 감소하여 투과도가 향상된 것을 확인할 수 있었으며, 특히 SA에 대해서는 파울링 개선효과가 크게 나타나 처리하지 않은 PE막에 비해 투과도가 두 배 이상 향상된 값을 나타내었다. To overcome the flux reduction due to the fouling by adsorption of foulants onto the porous hydrophobic polyethylene membrane surface, the oxyflorination was introduced to hydrophilize the hydrophobic membranes. After the hydrophilization through oxyfluorination, the contact angle decreased from $93^{\circ}$ to $50^{\circ}$ while the water flux increased to 60%. It was considered that for the model foulants dissolved in water, such as albumin (form bovine serum, BSA), humic acid sodium salt (HA), and alginic acid sodium salt (SA), the flux was enhanced since the adsorbed foulants decreased by the oxyfluorination. Particularly, it was obtained that the water flux was over twice more than the untreated polyethylene membrane in case of SA foulant.

눈물샘에서 발생한 근상피종 1예

강수연,김명진,최혜선,김성주,Su-Yeon Kang,Myung-Jin Kim,Hyu-Sun Choi,Sung-Joo Kim 대한안과학회 2005 대한안과학회지 Vol.46 No.7

Purpose: Myoepithelioma of the lacrimal gland is an extremely rare monomorphic adenoma. We report a case of myoepithelioma of the lacrimal gland. Methods: A 34-year-old woman visited with an asymptomatic palpable mass on the left upper lid for a year. On ophthalmic examination, the visual acuity was 20/20 in both eyes and other ophthalmic examinations were unremarkable. Computed tomographic scan revealed a well-circumscribed, low-attenuated mass lesion in the lacrimal gland. The mass was excised and histopathologic examination and immunohistochemical staining were performed. Results: The lesion consisted of a brown mass, up to 1.5×1.0×1.0 cm. Histopathologically, there were round, ovoid nuclei associated with an interstitial hyaline deposition. Immunohistochemical staining was strongly positive for S-100 protein and vimentin, intermediately positive for cytokeratin and smooth muscle actin, and negative for glial fibrillary acid protein. Recurrence of the neoplasm was not observed during 5 months of follow-up after surgery. Conclusions: The case was diagnosed with myoepithelioma of the lacrimal gland on the basis of clinical and histopathological findings. Myoepithelioma of the lacrimal gland is very rare and only a few cases have been reported.

미세먼지 노출이 안구조직과 경부림프절에서 NLRP3 인플라마좀 발현에 미치는 효과

강수연(Su-Yeon Kang),강보람(Boram Kang),김효명(Hyo Myung Kim),송종석(Jong-Suk Song) 대한안과학회 2018 대한안과학회지 Vol.59 No.2

Purpose: To evaluate changes of the NLRP3 inflammasome complex and proinflammatory cytokine interleukin (IL)-1β in ocular tissues and cervical lymph nodes when the ocular surface was exposed to particulate matter. Methods: Five-week-old Sprague Dawley male rats, each weighing 250–300 g, were used in this study. The rats were randomly divided into two groups involving the TiO2-exposed group (n = 12) and control group (n = 12). Rats in the TiO2-exposed group were exposed to airborne TiO2 microparticles in the exposure chamber twice daily for 2 hours for 5 days. The mean particulate matter (PM) 10 concentration in the exposure chamber was 331 ± 83 μg/m3. The score of corneal fluorescein staining for evaluating ocular surface damage and the size of cervical lymph nodes for evaluating the immune response in the lymphatic drainage pathway were measured. The expression of the nucleotide-binding domain leucine-rich repeats, pyrin domain-containing 3 (NLRP3) inflammasome complex (NLRP3, apoptosis-associated speck-like protein containing a caspase activation and recruitment domain (CARD) domain [ASC], and caspase-1) and IL-1β was quantitatively evaluated. Results: In the TiO2-exposed group, the mean corneal stain score was significantly increased compared to that of the control group (p = 0.002), and the size of the cervical lymph nodes in the TiO2-exposed group was greater than that of the control group(p = 0.004). The expression of NLRP3 and ASC was significantly increased in the corneo-conjunctival tissue and cervical lymph nodes after TiO2 exposure (both, p = 0.037). Inactive precursor forms of caspase-1 and IL-1β were decreased, but active forms of caspase-1 and IL-1β were increased after TiO2 exposure (both, p = 0.037). Conclusions: When the ocular surface was exposed to ambient particulate matter, the signal pathway of the NLRP3 inflammasome complex was activated, resulting in increased expression of the proinflammatory cytokine, IL-1β. The results suggested that the NLRP3 inflammasome complex was involved in the pathogenesis of ocular surface inflammation caused by exposure to particulate matter.

음악 특성 분석을 위한 모바일 응용 구현

강수연 ( Su-yeon Kang ),박영호 ( Young-ho Park ) 한국정보처리학회 2014 한국정보처리학회 학술대회논문집 Vol.21 No.2

최근 한국에서는 대부분의 사람들이 안드로이드 기반의 스마트폰을 사용하고 있고, 뮤직플레이어는 어느 스마트폰에서나 찾아볼 수 있다. 이에 본 논문에서는 음악을 분석하고 사용자의 감정에 따라 노래를 추천해주는 뮤직플레이어의 알고리즘을 개발하였다. 사람들은 모두 음악에 대한 취향이 다르므로 사용자의 선호도 또한 반영할 수 있도록 하였다.

Zero Emission Building의 요소기술에 관한 연구

강수연(Kang Su-Yeon),이언구(Rhee Eon-Ku) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1

As buildings have a significant impact on Global Warming and Climate Change, we need to reduce the carbon footprint of commercial and residential buildings. This can be done by creating 'Zero Emission Building'. Zero Emission Building means that, the net carbon emissions from energy use in the building would be zero. This cannot be achieved by good low-energy design alone. Building energy demand has also to be met renewable energy supply. Therefore, this study aims to provide the foundational data for design process for 'Zero Emission Building'. For this propose, Technical Factors of Zero Emission Buildings were analyzed through the case study.

간호대학생을 위한 리더십 교육 프로그램에 대한 체계적 문헌고찰

강수연(Kang, Su Yeon),추상희(Chu, Sang Hui),김경아(Kim, Kyoung A) 학습자중심교과교육학회 2020 학습자중심교과교육연구 Vol.20 No.24

본 연구는 간호대학생을 대상으로 시행한 리더십 교육 프로그램의 특성과 Kirkpatrick 평가 모델에 근거한 리더십 교육 프로그램 성과 수준을 분석하기 위한 체계적 문헌고찰 연구이다. 문헌 검색은 2019년 12월 31일까지 출판된 논문을 대상으로 국외 데이터베이스 Cochrane Central, PubMed, EMBASE, CINAHL을 이용하였고 국내 데이터베이스에서는 Research Information Service System (RISS)를 이용하여 2020년 1월 9일부터 12일까지 실시하였다. 문헌 검색의 핵심어는 ‘nursing student*’, ‘leadership program’, ‘leadership curriculum’, ‘leadership course’, ‘leadership education’을 조합하여 검색하였다. 총 2076편의 논문 중 선정 기준에 따라 10편의 논문을 최종 분석하였다. 연구 결과, 간호대학생 리더십 교육은 주로 4학년 학생을 대상으로 시행되었으며 주로 사용된 교육 방법은 토의였고, 9편의 연구에서 Kirkpatrick 평가 모델 중 1단계인 반응평가(Reaction)를 포함하여 2단계 학습평가(Learning)의 수준에서 평가하였다. 리더십 교육 프로그램은 간호대학생의 리더십 기술, 의사소통 능력, 임상지식에 효과가 있는 것으로 나타나, 정규 교과과정과 비정규 교과과정 중 더 효과적인 리더십 교육 방법에 대한 효과비교 연구가 필요함을 확인하였다. Purpose: The purpose of this study is to provide basic data for the design of a structured leadership education program in the future by analyzing the overall characteristics of the program through systematic literature review of leadership education programs conducted on nursing students. Methods: The researchers searched using the PubMed, EMBASE, CINAHL, Cochrane central, and RISS. Ten studies were selected for analysis. Results: 4 of the 10 literature studies were pre-post, no control group and quasi-experimental. Leadership education was mainly conducted on fourth grade nursing students. The main training methods used were discussion, and leadership skills and communication skills were measured as major learning outcomes. Conclusion: Leadership training programs have been identified as a way to effectively improve leadership skills, communication skills, management skill, and clinical knowledge, and to educate key capabilities that future nursing leaders should have.

사회복지종사자의 감성지능 수준에 따라 감정노동이 소진에 미치는 영향

강수연 ( Su Yeon Kang ),이창환 ( Chang H. Lee ) 慶熙大學校 社會科學硏究院 2011 社會科學硏究 Vol.37 No.2

사회복지종사자의 감성수준이 감정노동과 소진에 미치는 영향을 알아보기 위하여 감정노동은 독립변수로, 소진은 종속변수로, 감성지능은 조절변수로 보고, 상관분석, 중다회귀분석, 3단계 위계적 회귀분석을 사용한 조절적 회귀분석을 실시하였다. 검증결과 감정노동과 소진 관계에 정적 상관이 나타났으며, 감정노동은 소진과 부분적으로 유의미한 정(+)의 영향을 미치는 것으로 나타났다. 그리고 감정노동과 감성지능의 상호작용 효과도 통계적으로 유의미하여 감정노동이 소진에 미치는 영향을 감성지능이 조절하는 것으로 나타났다. 이에 근거하여 사회복지종사자의 감성노동에 따른 소진을 감소하기 위한 감성지능을 강화하기 위한 훈련이 필요할 것이다. This study explored relationship between the emotional labor and Burn-Out of employees in social welfare organization and institution according to their emotional intelligence. Survey data were collected from 179 employees in social welfare organization and institution and analyzed by correlation analysis, and multiple regression analysis and multiple modrating regression analysis The results of this study were as follows; First, there were significantly positive correlations between emotional labor and burn-out. Also, emotional labor had partly positive effect on burn-out. Second, emotional intelligence of social welfare organization and institution plays a morderating role in relation between emotional labor and burn-out.

반려동물의 체중 측정과 자동 배변 처리가 가능한 패드 시스템 개발

강수연(Su-Yeon Kang),조인선(In-Sun Jo),이영찬(Yeong-Chan Lee),정예빈(Ye-Bin Jeong),김헌(Huhn Kim) 한국HCI학회 2018 한국HCI학회 학술대회 Vol.2018 No.1

1 인가구가 증가함에 따라 반려동물의 사육 비율도 매년 증가하고 있다. 반려동물 양육 시에 견주들은 주로 반려견의 배변처리와 체중관리에 어려움을 느끼는데, 이를 해결해주고자 본 연구에서는 체중측정이 가능한 자동 배변 패드 제품과 서비스를 제안하였다. 그리고 제안한 제품 컨셉을 바탕으로 실제기능이 가능한 워킹 프로토타입을 제작했으며, 이와 연동하여 제품 상태 및 반려견의 체중 정보를 제공하여 헬스 케어에 도움을 줄 수 있는 어플리케이션도 함께 구현하였다.

Fe-Cr합금의 공식저항성 평가를 위하여 다양한 규격(KS D 0238, ASTM G 61, ISO 17475)에 따라 실시한 동전위 분극 시험과 임계공식온도 측정시험

강수연 ( Su Yeon Kang ),이재봉 ( Jae Bong Lee ),김영호 ( Yeong Ho Kim ) 대한금속·재료학회 2009 대한금속·재료학회지 Vol.47 No.10

The resistance to pitting corrosion of Fe-Cr alloys was evaluated by performing potentiodynamic polarization and critical pitting temperature (CPT) tests. For the potentiodynamic polarization tests, various standards were applied, i.e., KS D 0238 (wet, dry), ASTM G 61, and ISO 17475, showing different potentiodynamic polarization results including pitting potentials. ASTM G 61 and ISO 17475 standards presented relatively higher pitting potential while KS D 0238 (dry) indicated lower values than the others. Effects of surface roughness, scan rates, and exposure time to air before tests were also investigated. CPT tests were performed under two different applied potentials, 300 mV(SCE) and 200 mV(SCE) in deaerated 1 M NaCl aqueous solution. CPT values and the polarization test results showed a linear relationship.

도시 창조성에 영향을 미치는 지역특성요인에 관한 연구

강수연(Kang, Su-Yeon),이희정(Lee, Hee-Chung) 대한국토·도시계획학회 2011 國土計劃 Vol.46 No.5