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Na₂S 하부층을 이용한 Cu(In,Ga)Se₂ 광흡수층의 저온증착 및 Cu(In,Ga)Se₂ 박막태양전지에의 응용
신해나라(Hae Na Ra Shin),신영민(Young Min Shin),김지혜(Ji Hye Kim),윤재호(Jae Ho Yun),박병국(Byung Kook Park),안병태(Byung Tae Ahn) 한국태양광발전학회 2014 Current Photovoltaic Research Vol.2 No.1
High-efficiency in Cu(In,Ga)Se₂ (CIGS) solar cells were usually achieved on soda-lime glass substrates due to Na incorporation that reduces deep-level defects. However, this supply of sodium from sodalime glass to CIGS through Mo back electrode could be limited at low deposition temperature. Na content could be more precisely controlled by supplying Na from known amount of an outside source. For the purpose, an Na₂S layer was deposited on Mo electrode prior to CIGS film deposition and supplied to CIGS during CIGS film. With the Na₂S underlayer a more uniform component distribution was possible at 350°C and efficiency was improved compared to the cell without Na₂S layer. With more precise control of bulk and surface component profile, CIGS film can be deposited at low temperature and could be useful for flexible CIGS solar cells.
Na<sub>2</sub>S 하부층을 이용한 Cu(In,Ga)Se<sub>2</sub> 광흡수층의 저온증착 및 Cu(In,Ga)Se<sub>2</sub> 박막태양전지에의 응용
신해나라,신영민,김지혜,윤재호,박병국,안병태,Shin, Hae Na Ra,Shin, Young Min,Kim, Ji Hye,Yun, Jae Ho,Park, Byung Kook,Ahn, Byung Tae 한국태양광발전학회 2014 Current Photovoltaic Research Vol.2 No.1
High-efficiency in $Cu(In,Ga)Se_2$ (CIGS) solar cells were usually achieved on soda-lime glass substrates due to Na incorporation that reduces deep-level defects. However, this supply of sodium from sodalime glass to CIGS through Mo back electrode could be limited at low deposition temperature. Na content could be more precisely controlled by supplying Na from known amount of an outside source. For the purpose, an $Na_2S$ layer was deposited on Mo electrode prior to CIGS film deposition and supplied to CIGS during CIGS film. With the $Na_2S$ underlayer a more uniform component distribution was possible at $350^{\circ}C$ and efficiency was improved compared to the cell without $Na_2S$ layer. With more precise control of bulk and surface component profile, CIGS film can be deposited at low temperature and could be useful for flexible CIGS solar cells.
Na, Hye Young,Sohn, Moah,Ryu, Seul Hye,Choi, Wanho,In, Hyunju,Shin, Hyun Soo,Park, Chae Gyu 한국조명·전기설비학회 2018 한국조명·전기설비학회 학술대회논문집 Vol. No.
<P>Bone marrow-derived dendritic cells (BM-DCs) are generated from bone marrow (BM) cells cultured with granulocyte macrophage-colony stimulating factor (GM-CSF) for a week. In this study we investigated the effect of duration on the BM culture with GM-CSF. Within several months, the cells in the BM culture gradually expressed homogeneous levels of CD11c and major histocompatibility complex II on surface, and they became unable to stimulate allogeneic naïve T cells in mixed lymphocyte reaction (MLR). In addition, when the BM culture were sustained for 32 wk or longer, the BM cells acquired ability to suppress the proliferation of allogeneic T cells in MLR as well as the response of ovalbumin-specific OT-I transgenic T cells in antigen-dependent manner. We found that, except for programmed death-ligand 1, most cell surface molecules were expressed lower in the BM cells cultured with GM-CSF for the extended duration. These results indicate that BM cells in the extended culture with GM-CSF undergo 2 distinct steps of functional change; first, they lose the immunostimulatory capacity; and next, they gain the immunosuppressive ability.</P>
( Jae-hyuk Han ),( Na-hyun Shin ),( Je-hoon Moon ),( Changhwan Yi ),( Soo-cheul Yoo ),( Joong Hyoun Chin ) 한국육종학회 2020 Plant Breeding and Biotechnology Vol.8 No.1
Saltol is one of the most well-known quantitative loci (QTLs) for salinity tolerance in rice. It has been used to develop highly tolerant rice varieties in saline and coastal areas in Southeast Asia, South Asia, and Africa. However, the functional activity of Saltol is not well known, and the molecular marker application of readily developed linked markers in Saltol has not always been successful in the rice breeding programs for salinity tolerance improvement. Interestingly, two BC<sub>2</sub>F<sub>9</sub> sister backcrossed inbred lines (BILs), which have been developed by marker-assisted backcrossing utilized the linked markers of Saltol to improve the salinity tolerance of MS11 (a temperate japonica growing in tropical condition). The BILs showed very different phenotypic and stress tolerance, although both contained the Saltol QTL. The genomic similarity of the two BILs was 73%, and we have identified the genomic sites of different genic constitutions between the lines utilizing background genotyping. The stress response of the two BILs showed difference in survival rate, grain yield under highly saline field condition, and SPAD, SES in hydroponic conditions. MS11-SaltolA showed salinity tolerance through Na<sup>+</sup>/K<sup>+</sup> homeostasis with relatively high K<sup>+</sup> ion uptake and low Na<sup>+</sup> ion uptake in the seedling stage. Further genomic analyses with whole genome resequencing is ongoing to study on gene interactions. The developed highly tolerant MS11-SaltolA can be used as an improved donor in rice molecular breeding for high salinity tolerance.
An, Young Jun,Na, Jung-Hyun,Kim, Myung-Il,Cha, Sun-Shin Microbiological Society of Korea 2015 The journal of microbiology Vol.53 No.10
<P>Lon proteases degrade defective or denature proteins as well as some folded proteins for the control of cellular protein quality. There are two types of Lon proteases, LonA and LonB. Each consists of two functional components: a protease component and an ATPase associated with various cellular activities (AAA+ module). Here, we report the 2.03 -resolution crystal structure of the isolated AAA+ module (iAAA+ module) of LonB from Thermococcus onnurineus NA1 (TonLonB). The iAAA+ module, having no bound nucleotide, adopts a conformation virtually identical to the ADP-bound conformation of AAA+ modules in the hexameric structure of TonLonB; this provides insights into the ATP-independent proteolytic activity observed in a LonB protease. Structural comparison of AAA+ modules between LonA and LonB revealed that the AAA+ modules of Lon proteases are separated into two distinct clades depending on their structural features. The AAA+ module of LonB belongs to the -H2 & Ins1 insert clade (HINS clade)- defined for the first time in this study, while the AAA+ module of LonA is a member of the HCLR clade.</P>
하이퍼 파라미터 최적화 기법을 적용한 이상 거래 탐지 시스템
이원준(Won-Joon Lee),서민혜(Min-Hye Seo),신나라(Na-Ra Shin) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
This paper proposes new Fraud Detection System with Hyper-parameter Optimization to develop for the limitations of existing FDS. We use Hyper-parmeter Optimization Algorithm that Naïve Evolution Algorithm(based Genetic Algorithm) and Tree-structured Parzen Estimator Algorithm(based Bayesian Optimization Algorithm). The main result of this study is TPE Algorithm shows better AUPRC values in less time than the Naïve Evolution Algorithm on two FDS Data Sets. The contribution of this paper is the improvement of FDS with HPO algorithm.
이명경,최준열,김인경,조영아,김영신,정혜진,김리나,이영규,조영태,Lee, Myung-Kyung,Choi, Jun-Yeol,Kim, In-Kyoung,Cho, Yeong-Ah,Kim, Young-Shin,Jung, Hye-Jin,Kim, Li-Na,Lee, Young-Kyu,Cho, Young-Tae 대한예방의학회 2006 예방의학회지 Vol.39 No.4
Objectives: This study aims to examine if a garbage dumping site has real and negative influence on the quality of life (QOL) for the nearby residents. The net effects of the residential distance from the garbage dumping site and from the garbage truck route were investigated for five domains of the QOL. Methods: Two hundred fifty seven Shin-dong Myeon residents, Chun-cheon Si, participated in a self-administrated survey. The Shin-dong Myeon garbage dumping site began operating in 1996. ANCOV A with generalized linear models and multiple regression analysis were performed. Results: Descriptive analyses show that a residence nearby a garbage dumping site is negatively associated with the physical and environmental domains of the QOL. The residential distance from the garbage truck route does not exert any significant effect on various domains of QOL, except for the environmental domain. On the multivariate analysis, the residents living near the garbage dumping site tended to have a significantly negative QOL in the physical and environmental domains. However, the distance from the garbage truck route did not show a significant nor substantial effect on the QOL. The demographic and socioeconomic control variables are associated with a number of the QOL domains, and their patterns are consistent with the general expectations. Conclusions: The results indicated that a garbage dumping site is considered to be an environmental hazard among the nearby residents according to the lower scores on the physical and environmental domains of the QOL. The findings from this study provide comprehensive understanding on the residents' QOL, and they may help politicians and policy makers make decisions for appropriate interventions.
볼리비아 로즈목에 의한 다형홍반 양상을 보인 직업성 알레르기 접촉피부염 증례
신주연,홍윤철,임종한,박신구,이지나,김환철 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.2
배경 : 로즈목(rosewoods) 중 볼리비아 로즈목(Machaerium Scleroxyon)은 강력한 감작물질을 함유하고 있어서 외국에서는 이로 인한 자극 또는 알레르기 접촉피부염의 발생이 증가하고 있음에도 불구하고 지금까지 우리나라에서는 볼리비아 로즈목을 비롯한 수입목재에 의한 직업성 피부질환의 보고가 부족하였고, 이에 저자들이 볼리비아 로즈목에 의한 다형홍반 양상을 보인 직업성 알레르기 접촉피부염의 증례를 경험하였기에 보고하고자 한다. 증례 : 49세 남자로서 여러 가지 수입목재를 절단하고, 다듬는 작업을 하다가 소양감을 동반한 홍반성의 피부 증상이 발현되었고, 전신으로 증상부위가 확대되어 2주 동안 병원 입원 치료를 하게 되었으며, 이후 본원 산업의학과에서 피부첩포 검사 후 최종적으로 볼리비아 로즈목에 의한 알레르기 접촉피부염으로 확진되었다. 결론 : 수입목재들로 인한 직업성 피부질환 발생에 대한 광범위한 실테 조사가 필요하며, 이를 토대로 작업장에서의 직업성 피부질환의 발생을 감소시키기 위한 다각적인 예방, 관리 대책의 수립이 필요하다. Background: Woods are capable of causing allergic or irritant contact dermatitis which typically occurs on exposed areas. Because Bolivian rosewood exclusively contains the strong sensitizer R-3,4-dimethoxdalbergione, an increasing number of cases of initant and allergic contact dermatitis has been reported. Case report: A 49-year-old, male, wood worker, who handled a variety of woods, developed allergic contact dermatitis. A patch test confirmed a positive reaction to one of the exotic woods, Bolivian rosewood. Allergens found in Bolivian rosewood caused this patient's dermatitis, which cleared when he avoided &is wood. Conclusion: Exotic woods such as Bolivian rosewood can induce occupaiional contact dermatitis. Measures to lower the incidence of work-related dermatitis are needed in the workplace. Especially, when cutting or sanding woods, workers should wear proper personal protection.
에피소드 구성력과 수험자의 스토리텔링 과업수행능력 분석
신동일,김금선,김나희 새한영어영문학회 2007 새한영어영문학 Vol.49 No.4
The purpose of this study is to investigate how Korean learners of English construct their linear story grammar (Stein & Glenn 1979) in oral proficiency testing situations. A total number of 31 storytelling samples from two oral proficiency tests were analyzed: MATE (Multimedia-Assisted Test of English) and OPIc(Oral Proficiency Interview computer). The 15 excerpts came from MATE and 16 from OPIc. This study explored which components of story grammar(setting, initiating events, internal responses, attempts, direct consequences, reactions) appeared in each of three categorized proficiency levels (advanced, intermediate high and low, intermediate low). It was found that the performance difference of episode completeness was explicit between each level of oral proficiency. The higher their speaking proficiency was, the more complete episodes were found in their storytelling samples. It was also found that the test-takers of English speaking lacked the competence in describing characters' feeling and emotion in their narratives regardless of their proficiency levels. Issues for further research are discussed.