물시멘트비 및 단위수량에 따른 순환콘크리트의 강도 특성과 내구성능에 관한 실험적 연구

김영선,김정진,석원균,이주호,김규용,Kim, Young-Sun,Kim, Jung-Jin,Seok, Won-Kyun,Lee, Joo-Ho,Kim, Gyu-Yong 한국건설순환자원학회 2011 한국건설순환자원학회지 Vol.6 No.3

천연골재의 고갈 및 환경규제에 의한 건설용 잔골재의 수급불균형 문제를 해결하기 위해 폐기콘크리트로부터 생산된 순환잔골재의 적용성을 위한 연구들이 수행되어 왔다. 본 연구의 목적은 W/C 및 단위수량의 변화에 따른 순환잔골재를 사용한 콘크리트의 역학적 특성 및 내구성능에 관한 이해를 높이는 것이다. 또한, 순환콘크리트의 구조적 적용을 위한 기초자료를 제시하는데 의미가 있다. 특히, 순환잔골재를 100% 대체한 순환콘크리트에 대하여 W/C 및 단위수량의 변화에 따른 영향은 공기량, 슬럼프, 응결시간, 압축강도, 인장강도, 탄산화 및 염화물 침투와 같은 항목에 대한 시험결과에 의해 분석 제시되었다.

여성노동운동가 김지선의 젠더경험과 생애사적 과제 - 이야기된 생애사를 중심으로

김영선 ( Kim Young-sun ) 한국사회사학회 2020 사회와 역사 Vol.0 No.125

이 연구의 목적은 김지선의 이야기된 생애사를 채록하여, 근대 한국의 중요 정치사회적 국면을 관통하며 구성된 한 여성노동운동가의 젠더 경험을 역사적·사회적 시공간적 맥락 안에 위치시켜 살펴보는 것이다. 2018년도 국사편찬위원회 구술자료 수집사업의 일환으로 수행된 본 구술의 채록과정에서 김지선은 국가폭력의 트라우마와 가족해체의 과정에서 느낀 고통과 회한, 유년시절의 친족 성폭력 경험에 대해서 말했고, 생산된 동영상과 녹취록을 삭제 없이 아카이브 자료로 남기는 것에 대해서 동의하였다. 본 연구는 자기 생애 경험을 이 세계를 만들어 온 여성/노동자들의 역사의 한 부분으로, 동시에 노동운동의 역사를 자신의 기억을 매개해 재현하고자 했던 구술자의 적극적 행위자성을 김지선의 생애사적 과제로 접근했다. 특히 당시 전방위적으로 확산되고 있었던 ‘미투’ 국면에서 친족 성폭력 피해자로서의 자신의 경험에 대해 ‘말하기’를 결심하고 실천하는 과정을 통해, 여성운동가로서 김지선의 정체성 재구성의 궤적과 더불어 피해자 연대로서의 ‘미투’의 확장성을 둘러싼 젠더정치의 의미를 재해석해 보았다. 마지막으로, 연구과정 전체를 관통한 방법론의 질문이었던, 실명 구술자가 아직[은] 말할 수 없는 것들과 이야기된 것들에 대해서, 구조화된 위계와 해석의 권력을 가진 면담자이자 동시에 연구자는 이를 어떻게 듣고 또 해석해야 하는가의 문제와 함께, 말하기를 가능케 하는 상대적이면서도 절대적으로 필요한 ‘구술자의 시간’은 언제 어떻게 도래, 혹은 유예되는가를 둘러싼 이슈를 성찰적으로 제기했다. 그동안 구술사 방법론에서 상대적으로 간과되었던 ‘구술자는 언제 말할 수 있는가’를 둘러싼 시간성의 물음에 대한 논의를 요청하고자 한다. The study records the life history of Jisun Kim, a female labor activist from Incheon, South Korea. It examines the political and social construction of female labor activist’s gendered experiences through socio-temporal contexts. The study charts her political consciousness as it shifted from that of a labor activist to a women’s activist. As her role as a woman activist expanded, these two consciousness(es) intersected at core events of her life: her career, her networks, her family relations and marriage, and the dynamics shaped in testimonial processes. More specifically, the study attempts to more accurately convey. It details the multi-layered contexts and gender politics of the speaking subject, surrounding multi-layered traumas tied to her painful life, such as family dissolution, sexual abuse of an uncle, and instances of state violence ―aspects of Kim’s personal life long kept secret in the process of preserving oral history for the National History Editorial Committee (Guksapyeonchanwiweonhoe). This study investigates the reproduction of oral history through the mediating memory of women’s narration. It reinterprets the meaning of gender politics surrounding Jisun Kim’s identity reconstruction, along with the recent expansion of the #MeToo movement in South Korea as part of victim solidarity. The findings show that methodology in interview processes play roles in historical results. As a blind-speaker negotiates with ‘what has yet to be said’ and ‘what is said,’ the interviewer constructs a hierarchical power dynamic and has the conclusive power of interpretation. The challenge also includes what the interviewer has heard, whether to reinterpret what was heard and to what extent the ‘interviewee’s time’ makes it possible to speak at all. In this regard, this research highlights a central problem in oral historical fails to address the question of when and whether the interviewee can really speak?

노년기 주관적 연령과 건강노화와의 관계: 연령집단별 분석

최은영 ( Choi Eun Young ),조성은 ( Cho Sung Eun ),오영삼 ( Oh Young Sam ),장희수 ( Chang Hee Su ),김영선 ( Kim Young Sun ) 한국보건사회연구원 2017 保健社會硏究 Vol.37 No.1

The purpose of this study is to examine the relationship between subjective age (whether one subjectively perceives himself as `the elderly` or `not the elderly`) and healthy aging. Using data from the 2014 National Elderly Survey (KIHASA), this study selected a total of 9,653 participants consisting of young-olds (aged 65-74) and old-olds (aged 75-84) For both the young-old and the old-old, multiple regression analyses were conducted to examine the research model. In the young-old population, one`s considering oneself as “non-elderly” was significantly associated with higher cognitive functioning, fewer chronic diseases, lower depressive symptoms, and higher level of social engagement. On the other hand, in the old-old population, one`s considering oneself as “non-elderly” was associated only with higher cognitive functioning, and not with the other domains of healthy aging. The findings suggest that subjective age can be considered as an important predictors of older adults` healthy aging. These findings indicate that the association between subjective age and healthy aging has a different pattern depending on the age group.

연령집단에 따른 노인의 허약(Frailty) 예측요인 분석

조성은 ( Cho Sung Eun ),최은영 ( Choi Eun Young ),오영삼 ( Oh Young Sam ),김영선 ( Kim Young Sun ),김성복 ( Kim Seong Bok ) 한국보건사회연구원 2017 保健社會硏究 Vol.37 No.3

This study aims to investigate the predictors of frailty in different age groups. To address this purpose, this study used the 2014 Survey of the Living Conditions of the Elderly (SLCE). In the research model, 4,123 older adults aged 75 and older were included from the SLCE. All participants were subdivided into two age groups based on their age; the young old group (75-85) and the old-old group (85+). The young old group consisted of 1,453 (43%) pre-frail older adults and 1,268 (37%) frail older adults; the old-old group consisted of 304 (40%) pre-frail older adults and 396 (52%) frail older adults. Our regression analysis showed that in the young-old, being female, lower levels of education, having more chronic diseases, having fall experience, higher depression, lower cognitive functioning significantly predicted transition to pre-frailty from non-frail status. In the old-old, being female, higher depression, lower level of social activity were significant predictors. On the other hand, predictors of transition to frailty from pre-frail status in the young-old were being female, higher age, being unemployed, having more chronic diseases, having fall experience, higher depression, lower cognitive functioning. In the old-old, predictors of transition to frailty from pre-frail status were only higher age, having more chronic disease, higher depression, and lower cognitive functioning. The research findings can be used as a reference point in the making of strategies for preventing frailty.

골프코스에서의 월동 전 크리핑 벤트그래스, 켄터키 블루그래스 및 한국잔디의 부위별 양분 함량

김영선,김택수,함선규,코스관리부,Kim, Young-Sun,Kim, Tack-Soo,Ham, Suon-Kyu,Course Service Team of Bear Creel G.C, Course Service Team of Bear Creel G.C 한국잔디학회 2008 한국잔디학회지 Vol.22 No.2

This study was conducted to investigate nutrient content at shoot and root(contained runner in zoysiagrass) in creeping bentgrass, kentucky bluegrass and zoysiagrass before turfgrass dormancy. The shoot ratio of dry weight in creeping bentgrass, kentucky bluegrass and zoysiagrass was 12%, 27% and 25% and root ratio was 88%, 73% and 75%, respectively. The orders of nutrients contained in turf-grass were N>K>Ca>P>Mg>Na in plant tissues. The proportion of nutrients in tissue of creeping bentgrass, kentucky bluegrass and zoysiagrass was 17%, 28% and 34% in shoot and 83%, 72% and 66% in root, respectively. These results showed that nutrients in turf-grass tissue was contained more than 70% in root before grasses dormancy. In turf grass management, all grasses were required to fertilize sufficiently N, $K_2O$, CaO and $P_2O_5$ before winter.

토양개량제 '프로파일'의 혼합에 따른 토양의 물리화학성 및 한지형 잔디의 생육 개선

김영선,임혜정,함선규,이긍주,Kim, Young-Sun,Lim, Hye-Jung,Ham, Soun-Kyu,Lee, Geung-Joo 한국잡초학회 한국잔디학회 2017 Weed & Turfgrass Science Vol.6 No.3

본 연구는 토양개량제 '프로파일'의 처리에 의한 토양의 물리화학성 및 잔디의 생육에 미치는 영향에 대해 조사 하였다. 토양개량제 비율별 처리구는 토양개량제 '프로파일'을 처리하지 않은 대조구(0%), 3% 처리구(3%), 5% 처리구(5%), 7% 처리구(7%), 그리고 10% 처리구(10%)로 설정하였다. 토양개량제 '프로파일'의 혼합비율 증가에 따라 전기전도도, 양이온치환용량, 모세관공극 및 공극은 증가하였고, 용적밀도와 수리전도도는 감소하였다. 잔디의 엽색 지수와 잔디 예지물이 7% 처리구에서 가장 높았고, '프로파일'의 처리량과 엽색 지수는 정의 상관성을 보였다. 토양의 이화학적 특성과 잔디 생육 지수별 상관관계 조사에서 양이온치환용량은 엽색 지수, 엽록소 지수 및 잔디 예지물에 대해 정의 상관성, 토양공극은 엽색 지수에 대해 정의 상관성을 나타내었다. 이들 결과를 종합할 때, 토양개량제 '프로파일'은 토양의 양이온치환용량과 토양공극을 개선하여 잔디의 품질과 생육이 개선되는 것을 확인할 수 있었다. This study was conducted to evaluate incorporation ratio of soil amendment 'Profile' to improve soil physicochemical properties and turfgrass growth. The soil amendment was added 0 (sand only), 3, 5, 7, and 10% to USGA Green-spec green sand soil. As incorporated with more 'Profile' amendment, soil electrical conductivity (EC), cation exchangeable capacity (CEC), capillary porosity and total porosity of root zone were increased than those of control, while bulk density and hydraulic conductivity decreased. Turfgrass index and clipping yield of creeping bentgrass grown in sand soil incorporated with 7% 'Profile' were improved than those of control. Correlation coefficient of turf color index and incorporation ratio of the soil amendment 'Profile' was found to show significantly positive correlation. These results indicated that application of the soil amendment 'Profile' to sand soil in golf course green improved turfgrass growth and quality by increasing CEC and porosity of root zone.

멀티미디어를 이용한 웹 기반의 전기자기학 교재 개발

김영선,최경,이기식,Kim Young-Sun,Choi Kyung,Lee Ki-Sik 한국공학교육학회 2002 공학교육연구 Vol.5 No.2

Recently, the use of the internet and the web becomes universal. So, many internet applications are made by educators. In this paper, contents about the electromagnetics course which is one of the basic subjects for electrical and electronic fields are dealt. Most textbooks concerned this topic describes the phenomena in mathematical formulas. Naturally, for the students, the understanding of the phenomena is not so easy. For the improvement the educational efficiency, the multimedia techniques such as HTML, pictures, animations and sound are utilized. And also the software developed by authors is available for the analysis or the exercise of various electromagnetic problems. The contents are composed 4 parts : electrostatic fields, magnetostatic fields, time varying fields propagation of waves.

Staphylococcus aureus에서 분리된 유발성 ${\beta}$-Lactamase 유전자의 유전적 구성

김영선,민경일,변우현,Kim, Young-Sun,Min, Kyung-Il,Byeon, Woo-Hyeon 한국미생물학회 1994 미생물학회지 Vol.32 No.1

An inducible ${\beta}$-lactamase gene (bla) was identified and isolated from the chromosomal DNA of multiple drug resistant strains of Staphylococcus aureus. Determined base sequence of bla and of its flanking region was compared with those of bla genes identified on the staphylococcal plasmids pPC1, pI258, pI1071, and pUB101. Base sequence of 843 base-long structural gene of our bla was same as that of pPCl-, pI258-, and pS1-bla. However, HindIII recognition site Which is found in most of the bla genes at 140 base upstream from the structural gene was moved to the site of 370 base upstream from the structural gene. And one of the two direct repeat sequence found in downstream flanking region of pI1071-bla was deleted in our bla. Amino acid sequence homology analysis of the ORF located around HindIII recognition site reveals that this 80 amino acids-long polypeptide is C-terminus of transposase of Tn4001.

대계(大薊)가 LPS로 유도된 Mouse BV2 Microglial cells의 염증반응에 미치는 영향

김영선,이성근,이기상,Kim, Young-Sun,Lee, Seoung-Geun,Lee, Key-Sang 대한한방내과학회 2008 대한한방내과학회지 Vol.29 No.4

Cirsii Japonici Herba(CJ) is a wild perennial herb found in many areas of Korea as well as China and Japan, which has been used to treat bleeding and inflammation. Silibinin is the main flavonoid extracted from milk thistle (Cirsii Japonici Herba). It exhibits potent antioxidant activity and anti-inflammatory effect. In this study, the effect of CJ and silibinin extract on lipopolysaccharide-induced inflammation was investigated using MTS assay, RT-PCR, western blot, and nitric oxide detection on mouse BV2 microglial cell lines. In the present results, CJ and silibinin extract suppressed nitric oxide production by inhibiting the lipopolysaccharide-stimulated enhancement of COX-2 and iNOS gene expression in BV2 cells. Moreover, CJ and silibinin also repressed some lipopolysaccharide-induced signaling molecules. Importantly, catalase-induced COX-2 and iNOS expression needed activations of $NF-{\kappa}B$, PI3K/Akt, and MAPK, which were important for the transcriptional up-regulation of COX-2 and iNOS. CJ and silibinin interaction on BV2 cells down-regulated $NF-{\kappa}B$-dependent proinflammatory cytokine (IL-2,IL-6) expression. They are involved in the regulation of inflammatory responses. These data shows that CJ and silibinin exerts anti-inflammatory and analgesic effects, probably by suppression of COX-2 and iNOS synthase expression in BV2 microglial cells.

사포닌과 아미노산 함유비료의 살포가 크리핑벤트그래스의 생육에 미치는 효과

김영선,함선규,이재필,황영수,Kim, Young-Sun,Ham, Suon-Kyu,Lee, Jae-Pil,Hwang, Young-Soo 한국잔디학회 2012 한국잔디학회지 Vol.26 No.1

This study was conducted to evaluate to the effect of liquid fertilizer with saponin (SLF) and liquid fertilizer with amino acid (ALF)on the growth of creeping bentgrass. In creeping bentgrass, turf color index, chlorophyll index, dry weight and shoot number were measured. It was hardly affected by SLF and ALF applications in investigation of chemical properties of the soil. By applying SLF and ALF, turf color index and chlorophyll index in 2SLF and 2ALF were increased more than CF, and shoot number and root length in 2SLF, ALF and 2ALF were higher than CF. In correlation coefficient among growth factors of creeping bentgrass, turf quality was significantly different in root length, shoot number, dry weight, and content of N and K in turf tissue (P<0.05), N content of tissue was significantly in root length, shoot number and dry weight (P<0.05), and K content was significantly in shoot number and dry weight (P<0.05). These results suggested that application of functional liquid fertilizers such as SLF and ALF was expected to replace compound fertilizer in turf management and that applied SLF and ALF was stimulated the uptake of N and K into turf so that turf qualities were improved by enhancing growth shoot and root of turf. 본 연구는 사포닌과 아미노산 함유비료를 크리핑벤트그래스에 관주시비하여 잔디생육에 미치는 영향을 조사하여 복합비료를 대신하여 잔디관리에 이용할 수 있는지 평가하기 위해 수행되었다. 엽색지수, 엽록소지수, 건물중, 잔디밀도, 뿌리길이 및 잔디의 양분함유량을 조사하여 생육을 평가하였다. 시험 전후 토양분석결과, 처리구에 따른 토양화학성의 변화는 나타나지 않아 SLF와 ALF의 시비가 골프코스의 토양화학성의 변화에 영향을 미치지 않음을 확인하였다. 벤트그라스의 엽색지수와, 엽록소지수는 2SLF와 2ALF에서는 엽색지수와 엽록소지수가 CF와 비슷하거나 약간 높았고, 잔디밀도와 뿌리길이는 2SLF, ALF 및 2ALF에서 CF보다 높았다. 건물중과 잔디 중 질소와 칼리함량은 2ALF 처리구에서 가장 높게 조사되었다. 잔디품질은 뿌리길이, 잔디밀도, 건물중 및 질소와 칼륨함량에 대해 고도의 상관성을 보였고(P<0.05), 잔디에 함유된 질소는 잔디밀도, 뿌리길이 및 건물중과 같은 잔디생육과 높은 상관성을 보였으며(P<0.05), 잔디에 함유된 칼륨은 잔디밀도와 건물중에서 높은 상관성을 보였다(P<0.05). 이러한 결과를 통해 기능성물질이 함유된 비료는 복합비료를 대신하여 잔디관리에 이용할 수 있을 것으로 기대되었고, 기능성액상비료의 관주시비 시 질소와 칼륨이 잔디에 흡수되어 잔디 지상부 및 지하부생장과 밀도를 증가시킴으로써 잔디품질을 향상시키는 것을 알 수 있었다.