A Study on Electrochemical Behaviors of Samarium Ions in the Molten LiCl-KCl Eutectic Using Optically Transparent Electrode

이애리,박병기 한국방사성폐기물학회 2017 방사성폐기물학회지 Vol.15 No.4

A spectroelectrochemical method has been applied to investigate the electrochemical behaviors and identify the kinds of samarium ions dissolved in high temperature molten LiCl-KCl eutectic. An optically transparent electrode (OTE) fabricated with a tungsten gauze as a working electrode has been used to conduct cyclic voltammetry and potential step chronoabsorptometry. Based on the reversibility of the redox reaction of Sm3+/Sm2+ , which was determined from the cyclic voltammograms, the formal potential and the diffusion coefficient were calculated to be -1.99 V vs. Cl2/Cl- and 2.53 × 10-6 cm2·s-1, respectively. From the chronoabsorptometry results at the applied potential of -1.5 V vs. Ag/AgCl (1wt%), the characteristic peaks of absorption for samarium ions were determined to be 408.08 nm for Sm3+ and 545.62 nm for Sm2+. Potential step chronoabsorptometry was conducted using the anodic and the cathodic peak potentials from the voltammograms. Absorbance analysis at 545.63 nm shows that the diffusion coefficient of Sm3+ is 2.15 × 10-6 cm2·s-1, which is comparable to the value determined by cyclic voltammetry at the same temperature.

Poly(vinyl alcohol) nanoparticles prepared by High Pressure Homogenizer and freezing-thawing process for protein/peptide drug delivery

이애리,한성수,류원석,조준우 한국고분자학회 2007 한국고분자학회 학술대회 연구논문 초록집 Vol.2007 No.10

Synthesis of branched polymer with acid-degradative crosslinkers as ArF photoresist by reversible addition-fragmentation chain transfer(RAFT) poly-merization

이애리,손해성,김동균,이종찬 한국고분자학회 2010 한국고분자학회 학술대회 연구논문 초록집 Vol.2010 No.10

전자면허의 기능을 갖는 분할 가능한 전자화폐시스템에 관한 연구

이애리,이지영 한국정보기술전략혁신학회 2000 情報學硏究 Vol.3 No.1

통신상의 전자상거래를 위해서는 전자화폐 시스템이라 불리는 새로운 개념의 지불 시스템이 필요하다. 전자화폐는 기존의 화폐를 디지털화한 정보이다. 그러나 전자화폐의 안전성은 기존의 화폐와는 달리 어떤 물리적 조건에 의존하지 않기 때문에 위조와 변조가 쉽게 이루어질 수 있으며, 쉽게 추적 당할 수 있다. 전자화폐가 안심하고 새로운 지불 수단으로 사용되기 위해서는 안전성과 사용자의 프라이버시가 보장되어야 한다. 본 논문에서는 기존에 제안되어진 전자동전 시스템, 분할 가능한 전자화폐, 전자면허등의 전자화폐시스템을 분석하고 통신량과 계산량에서 효율적이며, 전자면허의 문제점을 해결할 수 있는 시스템을 제안한다. Electronic commerce on the network requires a new payment system, electronic cash that carries digitalized information of cash. The new system, however, demands the security and privacy because electronic cash is different from real cash in that it can be easily duplicated, forged, or traced. Therefore, electronic cash system should be guaranteed security and privacy to be used as a new payment mechanism with assurance. First, this paper analyzes the existing electronic cash system involving electronic coins, divisible electronic bills, and electronic license. Then the paper proposes a new electronic cash system which claims to be more efficient in the amount of communication and computation. Finally, this study attempts to solve the problem of electronic license.

Quad-CZT Array System 검교정 목적 핵물질 형태별 표준시료 제작 및 평가

이애리,박정석,양귀현,정희준 대한방사선방어학회 2017 대한방사선방어학회 학술발표회 논문요약집 Vol.2017 No.04

기관내삽관 전에 투여된 Remifentanil, Esmolol과 Lidocaine이 심박수 변이도에 미치는 영향

이애리,진희철 순천향대학교 순천향의학연구소 2011 Journal of Soonchunhyang Medical Science Vol.17 No.1

Objective: The purpose of this study was to evaluate effects of remifentanil, esmolol, and lidocaine administered before a tracheal intubation on the autonomic nervous system using heart rate variability. Methods: In a randomized, prospective trial, we enrolled 60 patients undergoing a tracheal intubation under general anesthesia. After an induction of anesthesia using propofol and rocuronium, patients received either remifentanil 1.0 μg/kg (group R), esmolol 1.0 mg/kg (group E), or lidocaine 1.5 mg/kg (group L). Standard deviation of the normal to normal interval (SDNN), low frequency power (LF), and high frequency power (HF) were measured before and after the administration of three drugs. Heart rate and mean arterial pressure were measured before and after the tracheal intubation. Results: SDNN was not different between three groups. After the administration of drugs, LF mainly indicating the sympathetic nervous system activity was lower in the group E than in group R and L. HF indicating the parasympathetic nervous system activity was higher in group R than in group E and L. After the tracheal intubation, heart rate was lower in group R and E than in group L. Mean arterial pressure was lower in group R than in group E and L. Conclusion: Hemodynamic changes according to the tracheal intubation were attenuated by remifentanil 1 μg/kg or esmolol 1mg/kg, not by lidocaine 1.5 mg/kg. Remifentanil stimulated parasympathetic nervous system and esmolol suppressed sympathetic nervous system.

초등학생의 기질, 내현적 자기애, 부모 애착, 사회적 지지와 완벽주의 성향의 구조적 관계

이애리,이신동 인하대학교 교육연구소 2020 교육문화연구 Vol.26 No.1

초등학생의 완벽주의 성향은 개인 요인, 부모 요인, 사회 요인 모두가 통합적으로 받는다는 관점으로 개인 요인으로서기질과 내현적 자기애, 부모 요인은 부모애착, 사회 요인으로 사회적 지지를 선정하여 초등학교 5, 6학년 학생 377명을대상으로 완벽주의 성향과의 구조적 관계를 검증하고 총효과, 직접효과, 간접효과를 분석하였다. 연구 결과 첫째, 기질, 내현적 자기애, 부모애착, 사회적지지, 완벽주의 성향의 구조적 관계에서 기질, 내현적 자기애와사회적 지지는 완벽주의 성향에 유의한 직접효과가 있었다. 둘째, 잠재변인 중 내현적 자기애가 완벽주의 성향에미치는 효과가 가장 컸다. 셋째, 부모애착은 완벽주의 성향에 직접 효과는 유의하지 않았으나, ‘내현적 자기애가완벽주의 성향에 영향을 미치는데 있어 매개변인으로서 간접효과가 있었으며, 총효과에서는 내현적 자기애 다음으로그 효과가 큰 것으로 나타났다. 마지막으로 사회적 지지는 완벽주의 성향에 정적 직접 효과를 미치는 것으로 나타났다. 따라서 교육자 및 부모들은 초등학생의 완벽주의 성향에는 다양한 변인들이 함께 영향을 미침을 이해하고 타고난기질을 파악하여 그에 맞는 안내를 통해 내현적 자기애를 낮추고 부모와의 안정적인 애착 형성을 할 수 있도록도와주어야 한다. 또한 사회적 지지를 완벽에 대한 압박으로 인식하지 않도록 하여 과도한 완벽주의 성향으로 어려움을겪지 않도록 도와주어야 한다. The purpose of this study was to investigate the structural relationship among the temperament, covert narcissism, parental attachment, social support and perfectionism of elementary school students. In order to accomplish this purpose, this study gathered the date of 377 elementary school students. The results of this study were as follows. First, in the structural relationships among temperament, covert narcissism, parental attachment, social support, and perfectionism, temperament, covert narcissism, and social support had significant direct effects on perfectionism. Second, the effect of covert narcissism was the greatest. Finally, the direct effect of parental attachment on perfectionism was not significant while in the path of the impact of covert narcissism on perfectionism, it had an indirect effect on it as a mediator variable, and as for the total effect, it had the second greatest effect to covert narcissism. Therefore educator and parents should perceive that the perfectionism of elementary school students are influenced by variables as well and identify their temperament in order to guide them to bring down covert narcissism and build stable parental attachment with their parents. It is also important to help them understand that the social support is not a pressure on perfection and not to suffer from their perfectionism.

Information and communication technology overload and social networking service fatigue: A stress perspective

이애리 PERGAMON-ELSEVIER SCIENCE LTD 2016 COMPUTERS IN HUMAN BEHAVIOR - Vol.55 No.-

NMR Study on the Preferential Binding of the Zα Domain of Human ADAR1 to CG-repeat DNA Duplex

이애리,최서리,서여진,이준화 한국자기공명학회 2017 Journal of the Korean Magnetic Resonance Society Vol.21 No.3

The Z-DNA domain of human ADAR1 (ZαADAR1) produces B-Z junction DNA through preferential binding to the CG-repeat segment and destabilizing the neighboring AT-rich region.9 However, this study could not answer the question of how many base-pairs in AT-rich region are destabilized by binding of ZαADAR1. Thus, we have performed NMR experiments of ZαADAR1 to the longer DNA duplex containing an 8-base-paired (8-bp) CG-repeat segment and a 12-bp AT-rich region. This study revealed that ZαADAR1 preferentially binds to the CG-repeat segment rather than AT-rich region in a long DNA and then destabilizes at least 6 base-pairs in the neighboring AT-rich region for efficient B-Z transition of the CG-repeat segment.

지역문화 축제의 선택속성의 중요도에 대한 지각차이 및 만족도가 행동의도에 미치는 영향 : 부여 서동연꽃 축제 방문객을 대상으로

이애리,박정하,송래헌 한국호텔관광학회 2010 호텔관광연구 Vol.12 No.4

This study aims at examining an effect of differences in perception and satisfaction about the weight of importance in the selection attributes of local cultural festival upon behavioral intension with reference to visitors of Buyeo Seodong Lotus festival. The research method used in the study was a self-report type interview; total 300 survey questionnaires were distributed to visitors of Bueyo Seodong Lotus festival from July 22~25, 2010 and 251 were collected for an empirical analysis. The weight of importance in selection attributes by types of festival attendants showed a meaningful difference, especially on educational aspect and food. Satisfaction factor of festival selection attribute proved to have a significant effect on behavioral intentions. In particular, locality and accessibility among satisfaction factors of selection attributes took an effect on behavioral intentions. This study, based on the result, suggested the differences in using types of the attendants and important satisfaction factors and also suggested a plan to improve the festival to be sustainable.