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최은영,김양,Choi, Eun Young,Kim, Yang Korean Chemical Society 1999 대한화학회지 Vol.43 No.4
$Ca^{2+}$ 이온과 $Tl^+$ 이온으로 치환되고 완전히 진공 탈수된 제올라이트 X결정 $Ca_{18}Tl_{56}Si_{100}Al_{92}O_{384}$ ($Ca_{18}Tl_{56}$-X;${\alpha}=24.883(4){\AA}$)와 $Ca_{32}Tl_{28}Si_{100}Al_{92}O_{384}$ ($Ca_{32}Tl_{28}$-X;${\alpha}=24.973(4){\AA}A$)의 구조를 21(1)$^{\circ}C$에서 입방공간군 Fd3을 사용하여 단결정 X-선 회절법으로 해석하고 그 구조를 정밀화 하였다 $Ca_{18}Tl_{56}$-X 결정은 0.045 M $Ca(NO_3)_2$와 0.005 M $TINO_3$ 혼합용액으로 흐름법을 이용하여 이온 교환하였다. $Ca_{32}Tl_{28}$-X는 이와 유사하게 0.0495 M $Ca(NO_3)_2$ 와 0.0005 M $TINO_3$ 혼합용액을 사용하였다. 각 결정은 360$^{\circ}C$, $2{\times}10^{-6}$ Torr에서 탈수시켰다. $Ca_{18}Tl_{56}$-X 및 $Ca_{32}Tl_{28}$-X 결정 구조는 각각 I > 3${\sigma}$ (I)인 382 및 472개의 회절 반사점을 사용하여 각각 $R_1=0.039,\;R_2=0.036$ 및 $R_1=0.046,\;R_2=0.045$의 최종 오차 지수 값을 얻었다. 탈수된 $Ca_{18}Tl_{56}$-X 및 $Ca_{32}Tl_{28}$-X 결정 구조에서, $Ca^{2+}$ 이온과 $Tl^+$ 이온은 서로 틀리는 6개의 결정학적 자리에 위치한다. 16개의 $Ca^{2+}$ 이온은 D6R의 중심인 팔면체 자리 I을 채운다 ($Ca_{18}Tl_{56}$-X : Ca-O=2.42(1) ${\AA}$ 및 O-Ca-O=93.06(4)$^{\circ}$; $Ca_{32}Tl_{28}$-X Ca-O=2.40(1) ${\AA}$ 및 O-Ca-O=93.08(3)$^{\circ}$). $Ca_{18}Tl_{56}$-X 구조에서는 2개의 $Ca^{2+}$ 이온은 자리 II (Ca-O=2.35(2) ${\AA}$ 및 O-Ca-O=111.69(2)$^{\circ}$)를 점유하고 26개의 $Tl^+$ 이온은 큰 동공 내 마주보는 S6R의 자리 II에 점유한다. 각기 3개의 산소로 만들어지는 평면으로부터 1.493 ${\AA}$ 떨어져 있다(Tl-O=2.70(8)${\AA}$ 및 O-Tl-O=92.33(4)$^{\circ}$). 약 4개의 $Tl^+$ 이온은 세 개의 산소로 만들어지는 평면으로부터 소다라이트 동공쪽으로 1.695${\AA}$ 떨어진 자리 II에 위치해 있다(Tl-O=2.81 (1) ${\AA}$ 및 O-Tl-O=87.48(3)$^{\circ}$). 나머지 26개의 $Tl^+$ 이온들은 자리 III'에 분포된다(Tl-O=2.82 (1) ${\AA}$ 및 Tl-O=2.88(3) ${\AA}$). Ca_{32}Tl_{28}$-X 결정 구조에서는 16개의 $Ca^{2+}$ 이온과 15개의 $Tl^+$ 이온들이 자리 II를 점유하고 있다(Ca-O=2.26(1) ${\AA}$ 및 O-Ca-O=119.14(4)$^{\circ}$; Tl-O=2.70(1) ${\AA}$ 및 O-Tl-O=92.38$^{\circ}$). 한 개의 $Tl^+$ 이온들은 자리 II'를 점유한다. 나머지 12개의 $Tl^+$ 이온들은 자리IlI'에 분포된다. Two anhydrous crystal structures of fully dehydrated, $Ca^{2+}$- and $Tl^+$-exchanged zeolite X, $Ca_{18}Tl_{56}Si_{100}Al_{92}O_{384}($Ca_{18}Tl_{56}$-X;\alpha=24.883(4)\AA)$ and $Ca_{32}Tl_{28}Si_{100}Al_{92}O_{384}($Ca_{32}Tl_{28}$-X;\alpha=24.973(4)\AA)$ per unit cell, have been determined by single-crystal X-ray diffraction techniques in the cubic space group Fd3 at $21(1)^{\circ}C.$ $Ca_{18}Tl_{56}-X$ was prepared by ion exchange in a flowing stream of 0.045 M aqueous $Ca(NO_3)_2$ and 0.005 M $TlNO_3$. $Ca_{32}Tl_{28}-X$ was prepared similarly using a mixed solution of 0.0495 M $Ca(NO_3)_2$ and 0.0005M $TlNO_3$. Each crystal was then dehydrated at 360 $^{\circ}C$ and $2{\times}10^{-6}$ Torr for 2 days. Their structures were refined to the final error indices, $R_1=0.039\;and\;R_2=0.036$ with 382 reflections for $Ca_{18}Tl_{56}-X$ , and $R_1=0.046\;and\;R_2=0.045$ with 472 reflections for $Ca_{32}Tl_{28}$-X for which $/>3\sigma(I).$ In the structures of dehydrated $Ca_{18}Tl_{56^-}X\;and\;Ca_{32}Tl_{28}$-X, $Ca^{2+}\;and\;Tl^+$ ions are located at six crystallographic sites. Sixteen $Ca^{2+}$ ions fill the octahedral sites I at the centers of double six rings ($Ca_{18}Tl_{56}$-X:Ca-O=2.42(1) and O-Ca-O=93.06(4)$^{\circ}$; $Ca_{32}Tl_{28}$-X Ca-O=2.40(1) $\AA$ and O-Ca-O=93.08(3)$^{\circ}$). In the structure of $Ca_{18}Tl_{56}$-X, another two $Ca^{2+}$ ions occupy site II (Ca-O=2.35(2) $\AA$ and O-Ca-O=111.69(2)$^{\circ}$) and twenty six $Tl^+$ ions occupy site II opposite single six-rings in the supercage; each is 1.493 $\AA$ from the plane of three oxygens $(Tl-O=2.70(8)\AA$ and O-Tl-O=92.33(4)$^{\circ}$). About four $Tl^+$ ions are found at site II',1.695 $\AA$ into sodalite cavity from their three oxygen plane (Tl-O=2.81 (1) and O-Tl-O=87.48(3)). The remaining twenty six $Tl^+$ ions are distributed over site III'(Tl-O=2.82 (1) $\AA$ and Tl-O=2.88(3)$^{\circ}$). In the structure of $Ca_{32}Tl_{28}$-X, sixteen $Ca^{2+}$ ions and fifteen $Tl^+$ ions occupy site III' (Ca-O=2.26(1) $\AA$ and O-Ca-O=119.14(4)$^{\circ}$; Tl-O=2.70(1) $\AA$ and O-Tl-O=92.38$^{\circ}$) and one $Tl^+$ ion occupies site II'. The remaining twelve $Tl^+$ ions are distributed over site III'. It appears that $Ca^{2+}$ ions prefer sites I and II in that order and $Tl^+$ ions occupy the remaining sites.
최은영,이지현,최순영,Choi, Eunyoung,Lee, Ji-Hyoun,Choi, Sunyoung 대한치과보철학회 2017 대한치과보철학회지 Vol.55 No.4
벨마비는 원인이 명확하지 않은 급성 말초성 안면 신경마비로 주로 편측으로 나타난다. 일부에서는 완전히 회복되지 못하여 안면 근육의 불완전 마비, 구축 등의 후유증으로 인해 하악의 편측 변위 또는 편측 저작 습관 및 부조화가 나타나며, 따라서 만약 무치악 환자에서 총의치로 수복한다면 더욱 세심한 주의가 필요하다. 본 증례에서는 벨마비의 후유증과 불안정한 하악 운동으로 인해 술자에 의한 중심위 채득이 어려운 무치악 환자에서 고딕아치 묘기법으로 재현성 있는 중심위를 채득하고, 중심위와 환자의 습관적인 하악 기능 운동 범위 간의 자유도 부여를 위해 설측 교합을 이용하여 총의치를 제작함으로써 기능 및 심미적으로 양호한 결과를 얻었기에 보고하는 바이다. Bell's palsy is an acute-onset unilateral peripheral facial neuropathy. For patients with sequelae of facial paresis, the successful rehabilitation of fully edentulous arches is challenging. This case report described the treatment procedures and clinical considerations to fabricate complete dentures of a patient who showed unilateral displacement of mandible, unilateral chewing pattern and parafunctional jaw movement due to sequelae of Bell's palsy. Gothic arch tracing was used to record reproducible centric relation and lingualized occlusion was performed to provide freedom to move between centric relation and the patient's habitual functional area in fabricating satisfactory dentures in terms of function and esthetics.
최은영,이임순,Choi, Eun Young,Lee, Im-Soon 대한면역학회 2001 Immune Network Vol.1 No.1
Background: The human mic2 gene is a pseudoautosomal gene that encodes a cell surface antigen, CD99. High levels of CD99 constitute a tumor marker in Ewing s sarcoma (ES). We have recently demonstrated that CD99-induced apoptosis occurs only in undifferentiated ES cells, not in differentiated ES cells, raising the possibility of the involvement of CD99 in neural ontogeny. Methods: To elucidate the relations between the expression of CD99 and the differentiation of neural cells and the mechanism by which the expression of CD99 is regulated, we analyzed the differential patterns of CD99 expression in SH-SY5Y by treatment of 12-O-tetradecanoyl-13-phorbol acetate (TPA) and retinoic acid. In addition, to explore the transcriptional activity of CD 99 during neural cell differentiation, SH-SY5Y cells were transiently transfected with a CD99 promoter-driven luciferase construct, and treated with the inducers. Results: In immunoblotting and flow cytometry, the expression level of CD99 was increased on differentiated SH-SY5Y cells induced by TPA and retinoic acid. The luciferase activity was elevated by the treatment with TPA, known to mature SH-SY5Y cells toward a sympathetic neuronal lineage, whereas retinoic acid inducing a sympathetic chromaffin lineage displayed little effect. Conclusion: The result indicates that CD99 might be expressed only on cells maturing toward a neuronal lineage among differentiating primitive neuronal cells. In addition, the expression of CD99 seems to be regulated at the transcriptional level during the differentiation.
최은영,장병수,Choi, Eun-Young,Chang, Byung-Soo 대한예방한의학회 2008 대한예방한의학회지 Vol.12 No.3
This study was founded to identify the differences of the stress responses according to Sasang Constitutions(the Taeyangin, Taeumin, Soyangin and Soumin) of female college students. The subject were 226 the regular female students who majored in nursing in Kyungbuk, Kimcheon. Tools used in this study were the Questionnare for the Sasang Constitution Discrimination and the Scale for the Stress Response which were revised in some parts. The values of Cronbach's alpha for the Questionnare for the Sasang Constitution Discrimination and the Scale for the Stress Response were $0.45{\sim}0.73$ and $0.66{\sim}0.85$ respectively. The collected data was anaylyzed with the SPSS 10.0 windows statistical program. The results of this study were as follows; 1. The constitutions were shown in the order of Taeumin(45%), Soyangin(28%), Soumin(18%) and Taeyangin(9%). 2. There were significant difference in the stress response for Depression(p<.05), Anxiety(p<.05), Emotional irritability(p<.01) and the Total stress response(p<.05) according to the Sasang Constitutions (the Taeyangin, Taeumin, Soyangin and Soumin). In conclusion, it is needed to find out an effective ways of treating stress individually to apply Sasang Constitutions to a new esthetic treatment.
여성의 피부건강행위에 대한 인식도와 실천도의 상관관계분석
최은영,오현주,백승화,Choi Eun-Young,Oh Hyun-Ju,Baek Seung-Hwa 대한예방한의학회 2000 대한예방한의학회지 Vol.4 No.2
The objective of this study consists on clarifying what factors are influenced upon skin care behavior using fender's Health Promotion Model, widely used to anticipate practices of health care behavior for women with keen interest in skin care and then manifesting their correlations from July 1 to August 22, 1998, on 159 women interested in skin care. A subvariable included practice of skin care behavior and independent variables include general characteristics, health fitness, the level of agreement with the advantages of the perceived skin care behavior, the level of cognition of the necessity for skin care behavior The data collected processed with ANOVA and multiple regression analysis to clarify what factors among other independent variables have the most powerful effects upon skin care. The resultant findings were revealed, as follows : 1. In health care behavior among skin care behavior,'full ingestion of water' represented the highest value by 3.45 points, 2. The testees of this study had for the most part a higher level of cognition for the necessity for skin care behavior than for practice of skin care behavior. The more points they have for cognition of the necessity for skin care behavior, the more points they present for practice of skin care behavior. 3. From the perspective of the relationship between sociometic factors on the testees and their skin care behavior, the higher level married women were on (p<0.05) and the more points they have for economic status, the higher points were reflected . 4. The correlations between the testees' recognition or perception factors and points for practice of skin health state showed the higher points than the group who thought that they did not know their own skin health state (p<0.05). The higher the points of skin care fitness (p<0.0001), the higher the points of self-awareness (p<0.0001) 5. The factors that had the most powerful influence upon cognition and practice of women's skin care behavior were found, with statistical significance, to be adjustable factors such as age, smoking, drinking habit, economic status, etc. and points of cognition of the necessity for skin care behavior.
환자안전사건 분석을 위한 한글 근본원인분석 소프트웨어 개발
최은영,이현정,옥민수,이상일,Choi, Eun-Young,Lee, Hyeon-Jeong,Ock, Min-Su,Lee, Sang-Il 한국의료질향상학회 2018 한국의료질향상학회지 Vol.24 No.1
Purpose: The purpose of this study is to develop the Korean root cause analysis (RCA) software that can be used to systematically investigate underlying causes for preventing or reducing recurrence of patient safety incidents. Methods: We reviewed the existing guidelines and literatures on the RCA in order to figure out the RCA process. Also we examined the existing RCA softwares for investigating patient safety incidents to design the contents and interface of the RCA software. Based on the results of reviewing literatures and softwares, we developed a draft version of the Korean RCA software that can be easily used in Korean hospital settings by RCA teams. Results: The Korean RCA software consisted of several modules, which are modules for identifying patient safety incidents, organizing RCA team, collecting and analysing data, determining contributory factors and root causes, developing the action plans, and guiding evaluation. Conclusion: The Korean RCA software included optimized RCA process and structured logic for cause analysis. Thus even beginners in RCA are expected to easily use this software for investigating patient safety incidents. As software has been developed with the public financial support, it will be distributed free of charge. We hope that it will contribute to facilitating patient safety improvement activities in Korea.
비수용성 매질로부터 Ni(OH)<sub>2</sub> 반응슬러리의 환원반응에 의한 니켈 분말의 제조
최은영,이윤복,윤석영,김광호,김진천,임영목,김형국,김양도,Choi Eun Young,Lee Yoon Bok,Yoon Suk Young,Kim Kwang Ho,Kim Jin Chun,Rhyim Young Mok,Kim Hyong Kuk,Kim Yang Do 한국재료학회 2005 한국재료학회지 Vol.15 No.5
Nickel Powders were synthesized by the reduction of $Ni(OH)_2$ reactant slurries from nonaqueous media, and the morphological characteristics of nickel powders with the addition of NaOH, the composition of mixed solvents, reaction temperature and reaction time were investigated. The NaOH addition changed the structure of agglomeration in the submicron range. As the volume ratio of TEA to DEA increased, the powders slightly suppressed the agglomeration between particles and their size increased. The reaction temperature on size and shape of nickel powders was significant. As reaction time was shortened from 40 min to 0.3 min at $220^{\circ}C$, size distribution of nickel powders was transferred to a narrow size distribution owing to the presence of smaller particles with below $1.0\;{\mu}m$.
DEA 용액에서 암모니아를 함유한 염화니켈 수용액으로부터 니켈 분말의 입경 제어
최은영,이윤복,윤석영,김광호,김진천,임영목,김형국,김양도,Choi Eun Young,Lee Yoon Bok,Yoon Suk Young,Kim Kwang Ho,Kim Jin Chun,Rhyim Young Mok,Kim Hyong Kuk,Kim Yang Do 한국분말야금학회 2005 한국분말재료학회지 (KPMI) Vol.12 No.3
Nickel powders were synthesized by the hydrazine reduction of nickel chloride solution containing ammonia in DEA solutions. The size distribution of nickel powders were investigated as a function of ammonia concentration, hydrazine concentration and the mixed composition ratio of diethanolammine (DEA) and triethanolammine (TEA). Nickel powders with the size in submicron range were obtained at $185^{\circ}C$ for 45 minutes by hydrazine reduction of nickel chloride solution in DEA solutions. The hydrazine concentrations showed significant effects on the particle size and shape distribution of nickel powders under $NH_3/Ni^{2+}$ molar ratio of 2.0 condition. As the mixed volume ratio of TEA and DEA increased, nickel powders with relatively larger particle size and low agglomeration were obtained. Nickel powders with particle size in the ranged from 0.4 to $0.9\;{\mu}m$ were obtained at the 50 $vol.%$ of TEA.
차량 내 방치된 유아의 열손상 사망사고 방지를 위한 승객감지기술 및 최적 대응방안에 대한 연구
최은영,유민상,Choi, Eunyoung,Yu, Minsang 한국자동차안전학회 2020 자동차안전학회지 Vol.12 No.3
Many children have died (Heat stroke deaths) in the U.S. after being left alone in cars during hot weather, especially summer season. According to related report, more than 800 children have died of heat stroke from being trapped in a hot car since 1998. The regulation party, government has started to make not only technical regulation to prevent tragedy but also legislate to punish. However the 75% of accident has occurred unintended by their parents. So punishment is not the best solution for this case. So in this study, we analyze the trend of regulation and technology to save occupant who remained back seat. And finally we propose a countermeasure to prevent heat stroke deaths.
사용자 가치 기반에 의한 교육용 모바일 앱의 UX디자인 설계전략
최은영,Choi, Eun-Young 한국정보통신학회 2017 한국정보통신학회논문지 Vol.21 No.7
디지털 미디어의 활용이 활발하게 진행됨에 따라 UI/UX에 대한 관심 및 중요성이 증가하고 있다. 이에 교육용 모바일 앱 개발 시 가치분석 모형을 바탕으로 디자인 평가 모형을 설계하고 이를 바탕으로 한 개발방향을 제시하고자 한다. 소비자 가치 분석을 바탕으로 한 디자인 평가모형의 주요 요인들은 소비자의 지속적 사용에 영향을 미친다. 이에 앱 개발 시 기존 애자일 방식의 개발 단계에 사용자 가치 분석을 바탕으로 한 디자인 평가 주요 요인들을 반영하게 되면 최적의 UX환경을 제공할 수 있다. 이렇게 개발된 앱은 소비자에게 만족감을 높여주게 되어 지속적인 사용에 긍정적인 영향을 미칠 것으로 기대한다. With the active usage of digital media, the importance of and the interest in User Interface (UI)/User Experience (UX) have been increasing. This study proposes the development of design evaluation model to utilize the quality analysis model as a basis if there were to be a development of mobile education application. Main factors of the design evaluation model, which is based on User Value analysis, influence users' attitudes and intentions in continuing their uses of a mobile education application. The employment of the design evaluation factors onto the existing agile method's development stage, therefore, would provide an optimal UX environment for the application. This application not only will increase the satisfactions of consumers, but also will have positive impacts on their intentions in continuing their uses of a mobile education application.