LiCl-KCl 용융염 내에서 10 g 규모의 Zircaloy-4 폐 피복관 처리를 위한 전기화학적 용해 연구

이유리,이창화,전민구,강권호,Lee, You Lee,Lee, Chang Hwa,Jeon, Min Ku,Kang, Kweon Ho 한국방사성폐기물학회 2012 방사성폐기물학회지 Vol.10 No.4

전해정련을 이용한 폐 피복관 처리의 타당성을 살펴보기 위하여, $500^{\circ}C$의 LiCl-KCl 용융염 내에서 표면이 산화된 10 g 규모의 Zircaloy-4 피복관 및 순수한 Zircaloy-4 피복관의 전기화학적 거동을 살펴보았다. 산화된 Zircaloy-4 피복관이 담긴 basket을 작업전극으로하여 전압-전류 관계를 측정한 결과, 산화되지 않은 Zircaloy-4 피복관과 비교해 Zr의 산화 peak는 Ag/AgCl 기준 전극 대비, 약 -0.7 V ~ -0.8 V로 유사한 반면, 산화 전류의 크기는 확연하게 감소하는 것으로 나타난다. 이러한 결과는 -0.78 V의 일정전위를 가한 전기화학적 용해 실험에서 살펴본 전류-시간 곡선에서도 유사하게 나타나며, 피복관 조각들의 평균 두께 및 무게 변화로부터 확인할 수 있다. Zircaloy-4 피복관이 산화되었을 경우, 표면의 산화막이 피복관의 전도성에 영향을 주어 basket 내 위치에 따라 전기화학적 용해의 균일성 및 속도를 떨어뜨리는 것으로 나타나지만, 표면의 미세한 결함과 Zr 산화물의 상 특성으로 인해 전기화학적 용해가 진행되는 것으로 판단된다. The electrochemical behaviors of 10 g-scale fresh and oxidized Zircaloy-4 cladding hulls were examined in $500^{\circ}C$ LiCl-KCl molten salts to confirm the feasibility of the electrorefining process for the treatment of hull wastes. In the results of measuring the potential-current response using a stainless steel basket filled with oxidized Zircaloy-4 hull specimens, the oxidation peak of Zr appears to be at -0.7 to -0.8 V vs. Ag/AgCl, which is similar to that of fresh Zircaloy-4 hulls, while the oxidation current is found to be much smaller than that of fresh Zircaloy-4 hulls. These results are congruent with the outcome of current-time curves at -0.78 V and of measuring the change in the average weight and thickness after the electrochemical dissolution process. Although the oxide layer on the surface affects the uniformity and rate of dissolution by decreasing the conductivity of Zircaloy-4 hulls, electrochemical dissolution is considered to occur owing to the defect of the surface and phase properties of the Zr oxide layer.

안검경련을 호소하는 여환 한방 치험 1례

이유리,현상호,김영석,조기호,문상관,정우상,Lee, Yu-Ri,Hyun, Sang-ho,Kim, Young-seok,Cho, Ki-ho,Moon, Sang-Kwan,Jung, Woo-sang 대한중풍순환신경학회 2014 대한중풍.순환신경학회지 Vol.15 No.1

■ Objectives The purpose of this clinical study is to evaluate the effect of Traditional Korean Medicine(TKM) on a patient with forcible closure of the eyelids due to blepharospasm. ■ Methods A patient with forcible closure of the eyelids diagnosed as blepharospasm was treated with herbal medication, acupuncture, electro-acupuncture, cupping and moxibustion. Then we evaluated the improvement with length of eye opening and Blepharospasm Disability Index. ■ Results Increase of length of eye opening and Blepharospasm Disability Index were observed after the TKM treatment. ■ Conclusion This study proved the effect of TKM treatment on forcible closure of the eyelids due to blepharospasm.

How Extracellular Reactive Oxygen Species Reach Their Intracellular Targets in Plants

이유리,Jinsu Lee,Minsoo Han,Yesol Shin,Jung-Min Lee,Geon Heo 한국분자세포생물학회 2023 Molecules and cells Vol.46 No.6

Reactive oxygen species (ROS) serve as secondary messengers that regulate various developmental and signal transduction processes, with ROS primarily generated by NADPH OXIDASEs (referred to as RESPIRATORY BURST OXIDASE HOMOLOGs [RBOHs] in plants). However, the types and locations of ROS produced by RBOHs are different from those expected to mediate intracellular signaling. RBOHs produce O2•− rather than H2O2 which is relatively long-lived and able to diffuse through membranes, and this production occurs outside the cell instead of in the cytoplasm, where signaling cascades occur. A widely accepted model explaining this discrepancy proposes that RBOH-produced extracellular O2•− is converted to H2O2 by superoxide dismutase and then imported by aquaporins to reach its cytoplasmic targets. However, this model does not explain how the specificity of ROS targeting is ensured while minimizing unnecessary damage during the bulk translocation of extracellular ROS (eROS). An increasing number of studies have provided clues about eROS action mechanisms, revealing various mechanisms for eROS perception in the apoplast, crosstalk between eROS and reactive nitrogen species, and the contribution of intracellular organelles to cytoplasmic ROS bursts. In this review, we summarize these recent advances, highlight the mechanisms underlying eROS action, and provide an overview of the routes by which eROS-induced changes reach the intracellular space.

인터뷰 - "협업은 필수, 그러나 이 산업의 중심은 건축사⋯ 누구도 주인만큼 노력해주지 않아"

이유리,Lee, Yu-Ri 대한건축사협회 2020 建築士 Vol.613 No.-

지지부진한 인허가 과정, 부족한 업무대가와 그로 인한 저하되는 건축 퀄리티⋯⋯. 많은 건축사들이 현장과는 다른 건축 법제도와 행정서비스에 어려움을 겪고 있다. 강부성 교수는 실제 현장과 학계를 오가며 건축 법제도 및 행정서비스 개선의 필요성을 꾸준히 제기해왔다. 올해 실시한 제39대 대한건축학회장선거에서도 이를 공약으로 내걸었다. 제39대 대한건축학회장에 당선된 강부성 서울과학기술대학교 건축학과 교수('20. 4. 24 학회장 취임)를 만나 현재 건축계가 당면한 법제도의 해법에 대해 들어보았다.

일조방해가 절화 장미의 생육 및 수량에 미치는 영향

이유리,박상근,Yuri, Lee,Sang Kun, Park 국립한국농수산대학교 교육개발센터 2022 현장농업연구지 = Journal of practical agricultural resear Vol.24 No.4

This study was carried out to analyze the effect of changes in the light environment caused by the daylight disturbance on the productivity and quality of the standard cut flower rose cultivar 'Monet'. It was artificially shaded to obstruct the sunlight and the productivity and growing characteristics of roses according to the time of daylight disturbance were investigated. The number of cut flowers per unit area (3.3m²) of the cut flower rose 'Monet' was 40 stems in the control, while in the 4-hour, 8-hour, and 12-hour treatments, it was 32, 29, and 25, respectively. As the daylight disturbance time was increased, the number of cut flowers showed a tendency to decrease. In the case of cut flower characteristics related to the quality of cut roses, all characteristics such as flower width, flower height, petal length, and petal width, decreased by 10 to 20% in the 12-hour treatment compared to the control. In addition, growth characteristics such as peduncle length, peduncle thickness, and cut flower height, which determine the marketability of cut roses, also tended to decrease as the daylight disturbance time increased. On the other hand, the number of days to flowering increased by 14.0% from 24.3 to 27.7. The overall growth characteristics were contracted and flowering was delayed as the time of daylight disturbance increased. In the results of this study, as the daylight disturbance time increased, flower size, cut flower length, and fresh weight was decreased. This is due to the decrease in the total photosynthetic amount as the daily average photosynthetic photon flux density (PPFD) was decreased, resulting in a decrease in the quality of roses. It is judged that it is because they do not receive enough carbohydrates necessary for growth and development.

한국산 검은큰집박쥐(Pipistrellus savii velox)의 정자미세구조

이유리,이정훈,Lee, Yu-Ri,Lee, Jung-Hun 한국현미경학회 2011 Applied microscopy Vol.41 No.2

한국산 검은큰집박쥐(Pipistrellus savii velox)의 정자의 형태를 알아보기 위해서 투과전자현미경으로 관찰하였다. 검은 큰집박쥐 정자두부의 모양은 탄환형의 형태를 취하고 있었다. 정자두부의 전체길이는 3.1 ${\mu}m$이었으며, 핵의 길이는 3.0 ${\mu}m$, 폭은 1.8 ${\mu}m$으로서 정자두부의 대부분을 차지하고 있었다. 정자경부의 분절와(segmented column)는 약 14~15개로 구성되어져 있었으며, 중편부의 미토콘드리아 회전수는 57개 정도이었다. 또한 중편부의 외측섬유는 1, 5, 6번이 다른 것 보다 크다. 주편부에서는 섬유초(fibrous sheath)와 종 지주(longitudinal column)가 뚜렷하게 관찰되었지만 미부에서는 섬유초가 관찰되지 않았다. 이 연구에서 검은큰집박쥐는 정자두부의 길이가 다른 박쥐류 종보다도 매우 짧은 특징을 갖고 있었다. Sperm morphology of Pipistrellus savii velox was examined by transmission electron microscope. The sperm head of P. savii velox was bullet in shape. The sperm head was 3.1 ${\mu}m$ in length, whose posterior 3.0 ${\mu}m$ was occupied by a nucleus with 1.8 ${\mu}m$ in width. The segmented columns were about 14~15 in number. The total number of mitochondrial gyres was 57. Number of 1, 5, and 6 of the outer dense fibers were larger than the others. A fibrous sheath and longitudinal column of the principal piece were evidence, but the fibrous sheath was not seen at the end piece. In the present study, the length of the sperm head of P. savii velox were very shorter than those of other bats.

우측 반맹을 호소하는 환자 치험 1례

이유리,손정화,박민정,조기호,문상관,정우상,Ey, Yoo-lee,Son, Jeong-hwa,Park, Min-jeong,Cho, Ki-ho,Moon, Sang-kwan,Jung, Woo-sang 대한한방내과학회 2016 大韓韓方內科學會誌 Vol.37 No.2

Objective: This study presents a case of a 56-year-old Korean male with right-side hemianopia due to stroke. Homonymous hemianopia represents a visual field defect related to loss of vision in all or part of the left or right visual field in both eyes; treatment options for this condition are limited.Method: The patient was treated with acupuncture, moxibustion, herbal medicine (Yangguksanhwa-tang), and electroacupuncture around the eyes. We executed a confrontation visual field exam (the Donders test) to evaluate any visual field defectsResults: The visual field area showed improvement after the management of traditional Korean medical treatments.Conclusion: Based on this case, traditional Korean medical treatments may be effective in treating hemianopia due to stroke.

피로감과 저림을 주소로 하는 길랑바레 증후군 환자의 한방치료 증례보고 1례

이유리,김경순,최홍식,김승모,Lee, Yu-ri,Kim, Kyung-soon,Choi, Hong-sik,Kim, Seung-mo 대한한방내과학회 2017 大韓韓方內科學會誌 Vol.38 No.5

Objectives: This case report presents improvement of fatigue and tingling symptoms in a patient with Guillain-Barre syndrome (GBS) after receiving Korean medical treatment. Methods: The patient was treated for 35days with the herbal medicine Hyangsayangwi-tang-gamibang and acupuncture. The effects of treatments were measured with fatigue severity scale (FSS) and numeric rating scale (NRS). Results: The clinical symptoms of the GBS patient were improved considerably after Korean medicine treatment. Conclusions: The herbal medicine Hyangsayangyi-tang-gaimibang and acupuncture could be effective for treatment of symptoms of fatigue and tingling in patients with GBS, but more studies are needed to confirm the present results.

기혼남녀근로자의 일-생활 만족유형화 연구: 직장내 휴가관련 가족친화제도를 중심으로

이유리,이성훈,박은정,Lee, Yu Ri,Lee, Sung Hoon,Park, Eun Jung 한국가족자원경영학회 2020 가족자원경영과 정책 Vol.24 No.2

The purpose of this research was, first, to classify work-life satisfaction among married wage workers aged 20-59 years into several distinct types based on two dimensions of work and life, using data from the 20th(2017) wave of the Korean Labor & Income Panel Study. Second, the study aimed to assess the differences in socio-demographic characteristics (sex, age, educational level, average monthly income), and workplace-related variables (weekly working hours, full-time employment, job stability, business type, family-friendly leave policies) by work-life satisfaction type. Accordingly, four types of work-life satisfaction were identified: work-life satisfaction, work-life dissatisfaction, work satisfaction, and life satisfaction. There was a significant difference in the type of work-life satisfaction among married waged workers based on sex, age, educational level, and average monthly income. Additionally, there was a significant difference in the type of work-life satisfaction for all workplace-related variables, namely, weekly working hours, full-time employment, job stability, business type, and family-friendly leave policies. In particular, proportionally higher values of work-life satisfaction were evident among the workers in companies with family-friendly leave policies such as paid leave, menstrual leave, maternity leave, childcare leave, and family events leave, whereas there was a high rate of work-life dissatisfaction among the workers in companies without family-friendly leave policies.

유리제품 및 시멘트분야 표준화사업

이유리,Lee, Yu-Ri 기술표준원 2002 기술표준 Vol.1 No.-