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      • KCI등재

        에틸렌옥사이드(Ethylene oxide)에 노출된 병원 근로자들의 소핵 빈도와 유전적 감수성 지표와의 연관성

        이선영,김양지,최영주,이중원,이영현,신미연,김원,윤충식,김성균,정해원,Lee, Sun-Yeong,Kim, Yang-Jee,Choi, Young-Joo,Lee, Joong-Won,Lee, Young-Hyun,Shin, Mi-Yeon,Kim, Won,Yoon, Chung-Sik,Kim, Sung-Kyoon,Chung, Hai-Won 한국환경보건학회 2011 한국환경보건학회지 Vol.37 No.6

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        Objectives: Ethylene oxide (EtO) is classified as a human carcinogen, but EtO is still widely used to sterilize heat-sensitive materials in hospitals. Employees working around sterilizers are exposed to EtO after sterilization. The aim of the present study was to assess the exposure of EtO level, coupled with occupationally induced micronuclei from hospital workers. The influence of genetic polymorphisms of detoxifying genes (GSTT1 and GSTM1) and DNA repair genes (XRCC1 and XRCC3) on the frequencies of micronuclei in relation to exposure of EtO was also investigated. Methods: The study population was composed of 35 occupationally exposed workers to EtO, 18 student controls and 44 unexposed hospital controls in Korea. Exposure to EtO is measured by passive personal samplers. We analyzed the frequencies of micronuclei by performing cytokinesis-block micronucleus assay (CBMN assay) and GSTM1, GSTT1, XRCC1, and XRCC3 were also genotyped by performing polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Results: The frequencies of micronuclei in EtO exposure group, student controls and hospital controls were $18.00{\pm}7.73$, $10.47{\pm}7.96$ and $13.86{\pm}6.35$ respectively and their differences were statistically significant, but no significant differences according to the level of EtO were observed. There was a dose-response relationship between the frequencies of micronuclei and cumulative dose of EtO, but no significantly differences were observed. We also investigated the influence of genetic polymorphisms (GSTM1, GSTT1, XRCC1, and XRCC3) on the frequencies of micronuclei, but there were no differences in the frequencies of micronuclei by genetic polymorphisms. Conclusions: The frequencies of micronuclei in EtO exposure group was significantly higher than control groups. A dose-response relationship was found between the level of EtO exposure and the frequencies of micronuclei, but no statistically differences were observed. We also found that the frequencies of micronuclei were increased according to cumulative EtO level. There was no association of the genetic GSTM1, GSTT1, XRCC1, and XRCC3 state with the frequency of micronuclei induced by EtO exposure.

      • KCI등재

        스펀본드 부직포의 흡음성에 대한 구조적 요인 효과 연구

        이선영,이지은,변태웅,이승구,Lee, Sun Young,Lee, Ji Eun,Byun, Tae Woong,Lee, Seung Goo 한국섬유공학회 2015 한국섬유공학회지 Vol.52 No.6

        Nonwovens have been proposed as a sound absorber in applications of home interior textile industry for effective noise control. Honeycomb cell blind textiles have been increasingly used in window covering for noise reduction. In this study, the effect of structural parameters of honeycomb cell-structured spunbond nonwoven on the sound absorption property was investigated. Spunbond nonwovens with various thicknesses, areal densities, and porosities were used, and they were joined in the form of a honeycomb cell structure with various cell widths and cell layering. The sound absorption property of the nonwoven improved with increasing thickness. The porosity of the nonwoven was shown to be proportional to the noise reduction coefficient (NRC). An increased air gap between two layers of the nonwoven shifted the maximum sound absorption coefficient toward a lower frequency range. The honeycomb cell structure was confirmed to contribute to an improvement of the sound absorption property. Layering of the honeycomb cell structure was also shown to be a critical factor in controlling the sound absorption property of the nonwoven.

      • 어두워진 실상과 밝혀진 허상

        이선영(Lee, Sun Young) 한국예술종합학교 미술원 조형연구소 2013 Visual Vol.10 No.-

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        이예린의 작품은 군더더기 없이 단순명료한 인터페이스를 가지고 있지만, 내포적 다양성이 풍부하다. 대표적인 사진 작품들은 그림자이긴 하지만, 물에 비친 그림자이기에 거울 같은 반영상이다. 거기에는 재현의 기원이 되는 그림자와 거울의 모델이 동시에 작동한다. 배수가 잘 안되어 하수구로 빠져나가지 못한 물이 고여 생긴 이 순간의 연못은 다른 세상을 담는 틀이 되었다. 현실과의 최소한의 접점을 가지는 상상세계는 회화에서 극대화되고, 드로잉에서는 추상적 요소들로 분해되어 있지만, 사진 작업에서는 절묘한 균형을 이룬다. 현실과 상상은 이원론으로 완전히 분리되어 있기 보다는, 뫼비우스 띠처럼 연결된다. 모태 예술이었던 음악은 무의식과 몸속에 깊숙이 자리하며, 음악뿐 아니라 미술에서도 여러 장르를 두루 섭렵해온 작품은 공共감각적이다. 이예린의 작품 속 허상simulacre은 현실과 닮은 그림자eikônes와 닮지 않은 그림자phantasma가 모두 존재한다. 작가는 미술이라는 우회로를 통해서 순수한 생성의 세계에 가 닿으려고 한다. The works of Ye leen Lee feature simple and clear interfaces, while they imply abundant diversity. Her representative photo works show mirror-like shadows reflected on the surface of the water, embodying the origin of representation with shadows and mirrors. The pond or puddle made of stagnating water that failed to drain becomes a frame for another world. In the works of Lee, the imaginary world having minimal contact points with the reality becomes maximized in paintings, gets disassembled into abstract elements in drawings, and creates a subtle balance in photographs. However, the reality and the imagination are not separated by dualism but connected like a Möbius strip. Since the artist learned music from inside her mother’s womb, music is deeply rooted in her unconsciousness as well as in her body. The works of Lee are synesthetic, for she has experimented with diverse genres of art besides music. The simulacrum in her works contains both eikônes that is close to the reality and phantasm that is far from the reality. Using art as a detour, the artist attempts to reach a pure world of creation.

      • KCI등재

        저융점 폴리에스터와 텐셀을 이용한 싸이로필사의 제조와 물성 분석

        이선영,유재정,홍윤광,이시우,이승구,Lee, Sun-Young,Yoo, Jae-Jung,Hong, Yun-Kwang,Lee, Si-Woo,Lee, Seung-Goo 한국섬유공학회 2012 한국섬유공학회지 Vol.49 No.2

        The purposes of this study were to manufacture sirofil yarn using tencel roving and low melting polyester filaments and to analyze the physical properties of sirofil yarns with yarn count, in order to develop composite yarn for high glossy and luxury textile fabrics. The surface morphology of sirofil yarn was observed with the SEM. Tensile and bending properties of sirofil yarn were examined with the yarn count. The tensile fracture of sirofil yarn was shown with a two-step process. Firstly, tencel yarn having low elongation was broken and then the low melting polyester filaments were fractured with very high elongation. Bending properties of sirofil yarn were measured with the KES-FB. The bending rigidity of sirofil yarn was between that of tencel spun yarn and that of low melting polyester. Also, the surface property of sirofil yarn was evaluated in terms of the hairiness coefficient. It was shown that stress, strain, bending rigidity, bending hysteresis and surface hairiness coefficient of sirofil yarn decreased as yarn count increased.

      • KCI등재

        조류제거를 위한 구리이온 발생 반응기의 특성 연구

        이선영,김혜연,주재백,Lee, Sun-Young,Kim, Hae-Yon,Ju, Jeh-Beck 한국전기화학회 2012 한국전기화학회지 Vol.15 No.1

        조류제거를 위한 구리이온을 생성하기 위한 환형 흐름 구리 전기분해 반응기 시스템을 구성하고 그 가동특성에 대하여 고찰하였다. 또한 구리이온이 조류에 미치는 영향도 살펴보았다. 인가전류를 증가하면 균등조로부터 배출되는 구리 이온 농도가 비례적으로 증가함을 알 수 있었다. 전류 밀도를 조절하여 원하는 구리농도를 얻을 수 있음을 알았으며 패러데이 효율은 90% 이상임을 알 수 있었다. 유량을 증가시키면 구리이온농도는 감소하였으며 이는 전극에서의 반응속도와는 상관없이 물의 증가량에 따른 희석 때문임을 알 수 있었으며 농도 과전위 영향은 미미하였다. pH가 증가할수록 생성되는 구리이온 농도는 이에 반비례하여 감소하였고 전기전도도의 변화는 배출되는 구리이온 농도에 별 영향을 미치지 않았다. 구리이온 농도가 증가시킬 경우 Chlorophyll-a 농도가 크게 감소함을 볼 수 있으며, 구리 이온 농도가 0.2 ppm 이상일 때 조류가 효과적으로 제거됨을 알 수 있다. 황산구리를 용해시킨 구리이온이나 전기분해를 통해 얻은 구리이온을 투여한 경우 별차이가 없었으며 5일 후 조류 제거효율은 0.4 ppm이상의 농도에서는 90%이상이었다. An annular flow type of copper electrolysis reactor was setup in order to generate the copper ions to remove algae in water. The operating characteristics of the reactor and the effect of copper ion on algae have been considered. By controling the applied current, the copper ion concentration could be obtained as desired level and the faradaic efficiency was above 90%. When the flow rate was increased, the copper ion concentration was linearly decreased due to the dilution effect and the effect of concentration overpotential was insignificant. With the increase of pH in water, the copper ion concentration was linearly decreased and not affected by the conductivity of the water. The concentration of chlorophyll-a was sharply decreased with the increase of copper ion concentration. The algae was effectively removed as the copper ion concentration was above 0.2 ppm. There was no difference between the copper ions obtained by dissolving copper sulfate and those produced by copper electrolysis. The algae removal efficiency was above 90% after 5 days as the copper ion concentration was above 0.4 ppm.

      • KCI등재

        Ta<sub>2</sub>O<sub>5</sub> 감지막의 광지시 전위차형 페니실린 센서

        이선영,장수원,김재호,권대혁,김응수,강신원,Lee, Sun-Young,Jang, Su-Won,Kim, Jae-Ho,Kwon, Dae-Hyuk,Kim, Eung-Soo,Kang, Shin-Won 한국센서학회 2006 센서학회지 Vol.15 No.3

        In this study, the light addressable potentiometric sensors (LAPS) with $Si_{3}N_{4}/SiO_{2}/Si$, and $Ta_{2}O_{5}/SiO_{2}/Si$ structures were fabricated. The penicillinsae was immobilized on the devices to hydrolyze the penicillin using self-assembled monolayer (SAM) method. Then response characteristics according to the penicillin concentrations were measured and compared. The measuring system was simplified by using LabVIEW. The pH response characteristics of fabricated devices are 56 mV/pH ($Si_{3}N_{4}$ sensing membrane) and 61 mV/pH ($Ta_{2}O_{5}$ sensing membrane). The sensitivity of sensor by enzyme reaction result of the enzyme reaction were 60 mV/decade and 74 mV/decade for $Si_{3}N_{4}/SiO_{2}/Si$ and $Ta_{2}O_{5}/SiO_{2}/Si$ structure, respectively, in the range of $0.1\;mM{\sim}10\;mM $of the penicillin concentration.

      • KCI등재

        주택에서의 각 생활행위에 대응하는 조명환경에 관한 실험연구

        이선영,Lee Sun-Young 한국주거학회 2005 한국주거학회 논문집 Vol.16 No.4

        The present study performed subjective evaluation experiments using slides and scale down models in order to propose guidelines for lighting environment desirable for each behavior in the house. The evaluation measure was composed of 20 mood items and 15 behavior items. As for experiment methods, the slide experiment used SD method, and the scale down model experiment used Scheffe's paired comparison. The results of this study are as follows. 1) Desirable lighting environment for working and talking is active atmosphere. 2) Lighting environment desirable far relaxation is to heighten lighting contrast using candescent lamps and local lights. In other words, active atmosphere, which is desirable for working and talking, is not desirable for relaxation. 3) Lighting for working requires bright illuminance and high color temperature(6000k). 4) Lighting for relaxation requires somewhat low brightness regardless of color temperature. If the light is bright it is better to use lamps of low color temperature. 5) for conversation, bright illuminance is more desirable than dark one, and the most adequate color temperature is 4000K.

      • KCI등재

        일반인의 교정치료에 대한 지식수준, 태도에 대한 연구

        이선영,Lee, Sun-Young 한국치위생학회 2012 한국치위생학회지 Vol.12 No.2

        Objectives : The purpose of this study was to examine the knowledge of people in general about orthodontic treatment and their attitude to that by conducting a survey in a bid to provide information on the improvement of their incorrect awareness of orthodontics and on the development of clinical orthodontic treatment. Methods and Results : The subjects in this study were 389 people in general who resided in Seoul and Gyeonggi Province. A self-administered survey was conducted, and the findings of the study were as follows: 1. As for awareness of orthodontic treatment among the people in general by gender, the women knew better about orthodontic treatment than the men, and the gender gap was significant(p<0.05). 2. Concerning satisfaction with the shape and arrangement of the teeth by age, those who were in their 20s were most satisfied, and the teens were satisfied the least. There were significant gaps according to age (p<0.05). 3. As a result of checking the degree of their inconvenience about the use of chewing teeth by age, the people who were in their 30s felt the most inconvenience, and the gap between them and the others was significant(p<0.01). 4. As a result of asking them whether they had an intention to receive orthodontic treatment, the women had a more intention to do that than the men(p<0.001). By age, the younger respondents had a more intention, and the gaps between them and the others were significant(p<0.001). 5. As a result of analyzing their perception of the positives of orthodontics by gender, the women took a more positive view of it than the men, and their gap was significant(p<0.01). Conclusions : When orthodontic treatment or orthodontic treatment counseling is provided to orthodontic treatment patients or people in general in the field of clinical dentistry, it should be noted that the way patients and people in general look at orthodontic treatment is different according to their age and gender, and they should be informed of the positives of orthodontic treatment to step up the development of orthodontic treatment.

      • KCI등재

        초등학교시설의 유니버설 디자인에 관한 연구 - 설계지침 분석을 중심으로 -

        이선영,이민우,Rieh, Sun-Young,Lee, Min-Woo 한국교육시설학회 2016 敎育施設 Vol.23 No.2

        In the context of lifelong education program for an aging society and information age, elementary school facilities are expected to accommodate various people in diverse age group and diverse physical abilities. Introduction of the 'Universal Design' concept seems inevitable in school environment in terms of public infra structure for community. However, in architectural point of view, unlike foreign examples, simply applied barrier-free and safety standards of domestic guidelines based on dimensional data does not function enough to achieve universal design in authentic manner. This study is focused on this issue and suggests the direction of improvement for architectural design guidelines. Through the comparative analysis of foreign and domestic design guidelines, two principles of universal design-'Flexibility in Use', 'Perceptile Information'- are found to be lacking in the domestic design guidelines for elementary school facilities. It is expected for government authority to develop more concrete guidelines to achieve universal design for school as a basic public space in the community.

      • KCI등재

        메밀 속성 장 프리믹스 제조 및 품질특성

        이선영,안유진,김지연,송진,최혜선,Lee, Sun Young,Ahn, Yu Jin,Kim, Ji Yeon,Song, Jin,Choi, Hye-Sun 한국식품영양학회 2013 韓國食品營養學會誌 Vol.26 No.4

        메밀 속성 장 프리믹스의 최적 조건을 확립하고자 품질특성을 조사하였다. 소금량(8, 10, 12%)에 따른 품질특성 결과, 대장균 군수는 소금량 10, 12%(21일), 8%(28일) 이후로 검출되지 않았으며, B. subtilis HJ18-4를 starter로 첨가한 군은 발효 7일부터 검출되지 않았다. 아미노태 질소 함량은 21일까지 급격히 증가하였으며, 그 후로 완만히 증가하였다. 그 결과, 소금 함량 10%, starter 첨가 시 보다 안전한 발효가 이루어졌다. 가수량(1:1, 1:1.5. 1:1.8)의 따른 품질특성 결과, 총균수와 아미노태 질소 함량은 가수량이 적을수록 높았으며, 1:1 혼합(35일)일 때 아미노태 질소 함량은 169.5mg%로 가장 높았고, 발효 28일 이후 대장균 군이 검출되지 않았다. 용기별(항아리, 유리, 플라스틱)의 품질특성 결과, 총균수와 아미노태 질소 함량은 유리 용기 대비 플라스틱과 항아리 용기가 높았으며, 대장균군도 보다 빨리 감소하였다. Batch size(1.25 kg, 2.5 kg)를 달리하여 제조된 메밀 속성 장의 품질특성 결과, 총균수와 아미노태 질소 함량은 batch size에 따른 큰 차이가 없었으며, 대장균 군 측정 결과, 14일째 2.5 kg($3.00{\times}10^2$ CFU/g), 1.25g ($1.25{\times}10^3$ CFU/g)으로 나타났다. 메밀 속성 장 프리믹스의 최적 조건은 가수량 1:1, 소금의 양 10%, B. subtilis HJ-18-4를 starter로 첨가, 항아리 및 플라스틱 용기는 3주, 유리 용기는 4주 발효시키는 것이 바람직하였다. This study evaluated the quality characteristics for optimization of premix-type Buckwheat (Fagopyrum esculentum) Soksungjang (BS). First, according to the amount of salt (8, 10, 12%), coliform counts were not detected in BS with 10 or, 12% salt at 21 days and Bacillus subtilis HJ 18-4 as a starter at 7 days. Therefore, 10% salt with starter culture might be considered as suitable conditions for safety. Second, according to the ratio of water (1:1, 1:1.5, 1:1.8), BS prepared with the same weights of meju powder and water showed the highest aminotype nitrogen content (688.76mg%) at 35 days; thus, an adequate fermentation state was established at this condition compared to others. Third, according to the type of container (pot, plastic, glass), the aminotype nitrogen contents were higher in the plastic container and pot than in the glass bottle. Lastly, according to the batch size (1.25, 2.5 kg), the coliform of the 2.5 kg sample decreased faster than that of 1.25 kg samples at 14 days. These results suggest that BS prepared with the same ratio of water and meju powder fermented with HJ 18-4 as a starter and 10% salt in a pot, plastic container (3 weeks) and glass container (4 weeks) showed desirable fermentation qualities.

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