A Simple Intermediate Approach of Sputter Deposition at Room Temperature for Improving the Stability of a-InGaZnO Thin Film Transistors

Chunlan Wang,Yebo Jin,Yuqing Li,Gangying Guo,Yongle Song,Hao Huang,Aolin Wang,Han He 대한금속·재료학회 2023 ELECTRONIC MATERIALS LETTERS Vol.19 No.4

Amorphous InGaZnO (a-InGaZnO) thin film transistors (TFTs) with stability and low-temperature deposition are importantchallenges for their application in flexible electronics. Herein, a-InGaZnO films were successfully obtained throughout thewhole process in the room-temperature sputtering system. An intermediate nitrogen treatment a-InGaZnO film link contributedto high performance a-InGaZnO TFTs. The current switching ratio of the optimal nitrogen treatment transistor is closeto 107,the field-effect mobility (μFE) is 11.7 cm2/Vs and threshold voltage (VTH) is − 0.12 V, respectively. And the 4-daythreshold voltage offset (ΔVTH) is reduced from 12.98 to 4.92 V. The improved electrical properties may be attributed to thereduction of defect concentration and average interfacial trap density due to nitrogen occupation of oxygen vacancies (VO).

Effect of Vitamin E Supplementation on Intestinal Barrier Function in Rats Exposed to High Altitude Hypoxia Environment

Chunlan Xu,Rui Sun,Xiangjin Qiao,Xiaoya Shang,Weining Niu,Yu Chao 대한약리학회 2014 The Korean Journal of Physiology & Pharmacology Vol.18 No.4

The study was conducted to investigate the role of vitamin E in the high altitude hypoxia-induceddamage to the intestinal barrier in rats. Sprague-Dawley rats were divided into control (Control), highaltitude hypoxia (HH), and high altitude hypoxia+ vitamin E (250 mg/kg BW*d) (HV) groups. Afterthe third day, the HH and HV groups were placed in a hypobaric chamber at a stimulated elevationof 7000 m for 5 days. The rats in the HV group were given vitamin E by gavage daily for 8 days. The other rats were given equal volume saline. The results showed that high altitude hypoxia causedthe enlargement of heart, liver, lung and kidney, and intestinal villi damage. Supplementation withvitamin E significantly alleviated hypoxia-caused damage to the main organs including intestine,increased the serum superoxide dismutase (SOD) (p< 0.05), diamino oxidase (DAO) (p< 0.01) levels,and decreased the serum levels of interleukin-2 (IL-2) (p< 0.01), interleukin-4 (IL-4) (p<0.001),interferon-gamma (IFN-γ) (p<0.01) and malondialdehyde (MDA) (p<0.001), and decreased the serumerythropoietin (EPO) activity (p<0.05). Administration of vitamin E significantly increased the S-IgA(p<0.001) in ileum and significantly improved the expression levels of occludin and IκBα, anddecreased the expression levels of hypoxia-inducible factor 1 alpha and 2 alpha (HIF-1α and HIF-2α),Toll-like receptors (TLR4), P-IκBα and nuclear factor-κB p65(NF-κB P65) in ileum compared to theHH group. This study suggested that vitamin E protectis from intestinal injury caused by high altitudehypoxia environment. These effects may be related to the HIF and TLR4/NF-κB signaling pathway.

Gender and migration : Employment of rural migrants in South China’s factories

Chunlan GUO,Jianfa SHEN 이화여자대학교 아시아여성학센터 2016 Asian Journal of Women's Studies(AJWS) Vol.22 No.3

Drawing on rural migrants’ experiences and narratives collected through indepth fieldwork in the Pearl River Delta in 2008–2009, we discovered that rural women are more successful than men in securing factory employment. We looked at the ways in which the employment of rural migrants in South China’s factories was an outcome of the interweaving of gender, migrant status, the segmented labor market, and the hukou (household registration) system. The factories have tended to recruit women as it is believed that femininity can contribute to increasing production efficiency, creating a “safe” space for production and minimizing labor costs. At the same time, masculinity is associated with “carelessness,” “laziness,” “naughtiness,” “conflict,” “violence,” and “trouble-makers.” In addition, the identity of “migrant” has helped women break free from the traditional gender regime and strengthen their labor market participation. 透過2008及2009年全球金融海嘯對在珠江三角洲工廠就業的農民工的深入田野調查, 我們發現在女性比男性在工廠就業上更有優勢。我們研究農民工在南中國工廠的就業是如何受性別、遷移、分割勞動市場和戶口制度影響及共同建構。工廠傾向雇用女工, 因為它們相信女性特質能夠提升生產效率、創造安全的工作空間和節省生產成本。同時, 工廠內男性特質被歸類為粗心、懶惰、調皮、衝突、暴力和麻煩製造者。再者, 遷移和移民的身份幫助女性農民工從農村傳統性別角色解放, 加強她們在勞動市場的參與程度。

Effect of Vitamin E Supplementation on Intestinal Barrier Function in Rats Exposed to High Altitude Hypoxia Environment

Xu, Chunlan,Sun, Rui,Qiao, Xiangjin,Xu, Cuicui,Shang, Xiaoya,Niu, Weining,Chao, Yu The Korean Society of Pharmacology 2014 The Korean Journal of Physiology & Pharmacology Vol.18 No.4

The study was conducted to investigate the role of vitamin E in the high altitude hypoxia-induced damage to the intestinal barrier in rats. Sprague-Dawley rats were divided into control (Control), high altitude hypoxia (HH), and high altitude hypoxia + vitamin E (250 mg/kg $BW^*d$) (HV) groups. After the third day, the HH and HV groups were placed in a hypobaric chamber at a stimulated elevation of 7000 m for 5 days. The rats in the HV group were given vitamin E by gavage daily for 8 days. The other rats were given equal volume saline. The results showed that high altitude hypoxia caused the enlargement of heart, liver, lung and kidney, and intestinal villi damage. Supplementation with vitamin E significantly alleviated hypoxia-caused damage to the main organs including intestine, increased the serum superoxide dismutase (SOD) (p< 0.05), diamino oxidase (DAO) (p< 0.01) levels, and decreased the serum levels of interleukin-2 (IL-2) (p< 0.01), interleukin-4 (IL-4) (p<0.001), interferon-gamma ($IFN-{\gamma}$) (p<0.01) and malondialdehyde (MDA) (p<0.001), and decreased the serum erythropoietin (EPO) activity (p<0.05). Administration of vitamin E significantly increased the S-IgA (p<0.001) in ileum and significantly improved the expression levels of occludin and $I{\kappa}B{\alpha}$, and decreased the expression levels of hypoxia-inducible factor 1 alpha and 2 alpha ($HIF-1{\alpha}$ and $HIF-2{\alpha}$), Toll-like receptors (TLR4), P-$I{\kappa}B{\alpha}$ and nuclear factor-${\kappa}B$ p65(NF-${\kappa}B$ P65) in ileum compared to the HH group. This study suggested that vitamin E protectis from intestinal injury caused by high altitude hypoxia environment. These effects may be related to the HIF and TLR4/NF-${\kappa}B$ signaling pathway.

Measure-preservation criteria for a certain class of 1-Lipschitz functions on $Z_p$ in Mahler's expansion

Li, Chunlan,Jeong, Sangtae Discrete and Continuous Dynamical Systems 2017 Discrete and continuous dynamical systems Vol.37 No.7

초등학교 담임교사 상담활동 경험의 특징과 의미에 관한 연구

JIN CHUNLAN,김정효 한국교원교육학회 2023 한국교원교육연구 Vol.40 No.3

본 연구는 초등학교 담임교사의 상담활동 경험에서 드러나는 고유한 특징을 살펴보고 그 의미를 밝히는 데 목적을 두었다. 이를 위해 초등학교 담임 경력 5년 이상인 교사들과 직·간접적으로 저학년, 중학년, 고학년의 상담활동 경험이 있는 담임교사 9명을 선정하여 심층면담을 진행하였다. Seidman(2016)이 제시한 3단계 면담구조에 근거하여 심층 면담질문지를 구성하였으며 1:1 면담을 통해 자료를 수집하였다. 수집된 자료는 김영천(2013)의 현상학적 연구 분석 과정 절차를 따라 처리하였다. 연구주제와 관련된 의미 단위들을 선별하여 부호화하고, 주제추출의 반복적 성찰 과정을 통해 230개의 의미 단위에서 17개 소주제와 7개 대주제를 도출하였다. 초등학교 담임교사의 상담활동 양상에서 드러난 특징은 상담활동 시작: 학급 열차 태우기, 상담활동의 사례개념화: 학생의 학급 생활을 위한 퍼즐 맞추기, 상담활동의 주제: 성장과 예방, 상담활동의 개입: 개인상담과 학급 교육활동, 상담활동의 종결: 1년 동안 지속되어 온 상담활동의 여정 등이 분석되었다. 담임교사로서 연구참여자들의 상담활동 경험은 학생들의 사회화에 긍정적 영향을 미치었으며, 담임교사로서 자신의 인격적 자질을 증진하는 기회가 되었다. 본 연구의 결과를 통하여 초등학교 담임교사상담활동 양상의 특징을 학문적으로 밝히고, 담임교사의 상담자 역할이 갖는 의미를 경험과 반성을 통해 실증적으로 확인하는 것에 의의가 있다. The purpose of this study is to examine the unique characteristics revealed in the counseling experiences of elementary school homeroom teachers and determine their significance. To achieve this, in-depth interviews were counducted with nine elementary school teachers who have more than five years of experience in counseling and who have directly or indirectly experienced couseling activities in lower, middle, and upper grade students. Based on the three-stage interview structure proposed by Seidman(2022), an in-depth interview questionnaire was constructed, and data was collected through one-on-one interviews. The collected data was proposed by Kim Young-Cheon(2013). Meaning units related to the research topic were selected and encoded, and through repetitive refelction on theme extraction, 17 sub-themes and seven main themes were derived from the final 230 meaing units. The characteristics of elementary school homeroom teachers’ counseling activities were analyzed in terms of initiating counseling activities: boarding the class train; conceptualization of counseling activities: solving puzzles for students’ classroom life; topics of counseling activities: growth and prevention; interventions of counseling activities: individual couseling and classroom educational activities; and conclusion of counseling activities: the journey of counseling activities over a year. As the homeroom teachers, the counseling experiences of the research participants bear the following meanings. Counseling activities related to students have a positive impact on their socialization. Counseling activities also served as opportunities for the homeroom teacher to enhance their personal qualities and traits as a professional. Through the results of this study, it is significant to identify the characteristics of counseling activities of elementary school homeroom teachers academically and to empirically confirm the meaning of homeroom teachers’ role as counselors through their experiences and reflections.

중국 초등 『도덕과 법치』 교육과정 및 교과서 분석

( Jin Chunlan ),김정효 ( Kim Junghyo ),남미주 ( Nam Mijoo ),황은경 ( Hwang Eunkyoung ) 한국초등도덕교육학회 2020 초등도덕교육 Vol.0 No.69

본 연구는 중국이 2016년에 개정한 도덕교육의 변화와 특징을 연구하기 위해 중국의 도덕과 각론에 해당하는 교육과정 문서와 법치교육을 위해 제정한 청소년 법치교육 대강, 그리고 새롭게 집필한 초등 도덕 교과서를 분석하였다. 그 결과는 다음과 같다. 첫째, 교과서의 ‘자아성장’과 ‘가정영역’의 단원과 차시는 증가하였으나 그 내용에 있어서 초등학생 수준에서도 개인윤리보다는 국가의 사회주의 핵심가치가 반영된 사회윤리를 지속적으로 강조하고 있다. 둘째, 정체성 형성의 결정적 시기에 ‘법치’교육 전문교과를 지정한 것은 국가중심의 공민으로서의 역할을 강화한 것으로 보여진다. 셋째, 개정된 중국의 도덕교육은 법치 교육을 강조하면서, 교수 전략의 측면에서 학습자 친화적인 내용과 방법의 향상됨을 보였다. In 2016 Chinese MOE has changed elementary moral education textbook title into 'Morality and Constitutional Government' from 'Virtue a study aims to review how the chinese moral education curriculum and life' emphasizing nationalism. In this context, and textbook have been changed at the elementary education level. For this purpose related national documents such as 'National Framework of Constitutional Government Education for Youth' and 'Guidebook of National Textbook Publication' are reviewed. And 12 books of 1st-6th graders moral education textbook are analyzed according to the content areas of 'constitutional government' such as 'nation and citizen', 'safety and rules' and 'world'. Also the instructional strategies of the 3rd grader's textbooks are closed examined. It results that recently revised chinese moral education constantly emphasizes nation and socialism rather than individual ethics even at elementary level although its instructional strategies are improved increasing student-friendly contents and method.

조선어문법교수에서의 문화정서함양

김춘란(Kim Chunlan) 길림성민족사무위원회 2012 중국조선어문 Vol.178 No.-

중·고급 한국어 정독 수업 모델 연구 -SNS의 활용과 PAD Class의 적용을 중심으로-

朴春兰 ( Piao Chunlan ) 중국한국(조선)어교육연구학회 2022 한국(조선)어교육연구 Vol.20 No.0

This study reviewed the design of a class model aimed at improving self directed learning ability(a key competency required in the era of the Fourth Industrial Revolution), problem solving ability, creativity, communication, and collaboration ability in middle and advanced Korean intensive reading class, and the operation cases as well as the class effects. Class design was divided into three stages: before class, during class, and after class. In all the mediating stages, QQ was actively used, and the PAD Class model was applied during and after class. This study showed specific examples of class operation to strengthen learners' core competencies, and the effect of the class could be confirmed through the learners' class evaluation results.

문화소질제고를 위한 중국고전문학교수

김춘란(Kim Chunlan) 길림성민족사무위원회 2014 중국조선어문 Vol.195 No.-