연구논문(硏究論文) : Heterotopias의 문제 현대중국에서의 도시주택 현황에 대한 재고

( Zheng Xin ) 한국지역사회발전학회 ( 구- 한국지역사회개발학회 ) 2008 地域社會開發硏究 Vol.33 No.1

Active Compounds from Schisandra chinensis Exhibiting Tyrosinase Activity and Melanin Content Inhibition in B16 Melanoma Cells

Zheng-Fei Yan,Jian Guo,Feng-Hua Tian,Xin-Xin Mao,Yu Li,Chang-Tian Li 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.4

Schisandra chinensis has been used as traditional medicine. The structures of isolate active compounds (schisandrin B, deoxyschisandrin, schisandrin C) from S. chinensis were characterized by physical and spectroscopic analyses. Active compounds were tested for their potential to act as anti-melanogenesis or skin-whitening agents by their abilities to inhibit tyrosinase activity in the cell-free mushroom tyrosinase assay and cellular tyrosinase derived from B16 melanoma cells. The tyrosinase inhibitory activity was correlated to the inhibition of melanin productions in α-MSH-stimulated and unstimulated B16 cells. Cellular tyrosinase kinetics were analyzed and showed by Lineweaver- Burk plot. Schisandrin B was minimally cytotoxic (cell viability: 88.99% at 0.75 μM) and the IC50 value for suppression of mushroom tyrosinase activity was estimated as 0.6 μM. Zymography analysis demonstrated schisandrin B’s concentration-dependent effects and the kinetic analysis indicated schisandrin B’s noncompetitive-inhibitory action.

China`s Codification of Conflicts Law: Latest Efforts

( Zheng Xin Huo ) 서울대학교 법학연구소 2010 서울대학교 法學 Vol.51 No.3

This article provides a systematic introduction to and an in-depth analysis of the draft of the "Act on Application of Laws in Civil Matters involving Foreign Elements" (the Draft) which represents the latest efforts of Chinese scholars for codification of Chinese Conflicts Law and serves as a blueprint for the National People`s Congress to enact China`s first conflicts code. Part one of the article provides an overview of the status quo of Chinese private international law from the perspective of legislation, judicial practice and theory. Part two introduces the background and major features of the Draft. Part Three provides a comprehensive exegesis of the important issues of the Draft, and puts forward corresponding suggestions. In Part four, the article concludes that the Draft is, symbolically, a major achievement made by Chinese scholars, but still requires further improvement and modification.

Three Years' Summary Report of “Curriculum Building of Women’s Studies in Asia”(China)

Zheng Xin-rong 이화여자대학교 아시아여성학센터 2000 이화여자대학교 아시아여성학센터 학술대회자료집 Vol.2000 No.10

Manufacturing properties of γ-dicalcium silicate with synthetic method

Zheng-xin Chen,Han-seung Lee,Hyeong Kyu Cho 한양대학교 세라믹연구소 2019 Journal of Ceramic Processing Research Vol.20 No.S1

γ-dicalcium silicate(γ-C2S) is known as a polymorphism of belite. Due to its high CO2 fixed capacity and the low CO2 emissionproduction process, γ-C2S has attracted more and more attention of researchers. For the further development of applicationofγ-C2S in building construction industry. In this study, we aim to investigate the method for synthesizing high purity of γ-C2S. The influence of different raw materials and calcination temperatures on the purity of γ-C2S was also evaluated. Several Cabearing materials were selected as the calcium source, the materials which’ s main component is SiO2 were used as the siliconsource. Raw materials were mixed and were calcined under different temperatures. The results reveal that the highest puritycould be obtained using Ca(OH)2 and SiO2 powder as raw materials. And for the practical application, a relatively economicsynthesis method using natural mineral materials- limestone and silica sand as raw materials was developed, by this method,the purity of the synthetic γ-C2S was 77.6%.

Effects of leadership practices on professional learning communities: the mediating role of trust in colleagues

Xin Zheng,Hongbiao Yin,Yuan Liu,Zheng Ke 서울대학교 교육연구소 2016 Asia Pacific Education Review Vol.17 No.3

The building of professional learning communities has been widely recognized as an effective strategy for schools wanting to improve student performance and enhance teachers’ professional capacity. This study explored the relationship between leadership practices and professional learning communities, with a particular focus on the mediating role of trust in colleagues within the context of mainland China. A total of 215 primary school teachers in a province of southwestern China participated in the study. The results showed that leadership practices and trust in colleagues had positive effects on five factors of professional learning communities, namely a shared sense of purpose, collaborative activity, collective focus on student learning, deprivatized practice, and reflective dialog. Trust in colleagues also mediated the influence of leadership practices on professional learning communities. The implications for facilitating professional learning communities in mainland China are discussed here.

중멍훙(鐘孟宏)의 영화 서사에 관한 연구 -영화<아호, 나의 아들(阳光普照)>을 중심으로-

쩡씬 ( Zheng Xin ) 한국영화교육학회 2023 영화교육연구 Vol.17 No.1

대만 신세대 감독 중 생산적이지 않고 색다른 스타일의 감독인 청몽홍는 대만 현대 가정생활 등 미시적인 내용을 담아내는 경향이 있으며 가족애와 인간성에 대한 관심이 모든 작품에 걸쳐 있다. 영화<아호, 나의 아들>은 영화적 서사를 그려낸 청몽홍 감독이 직접 2019년에 주도하여 만들어진 작품이며, 감독 본인이 촬영과 편집 및 감독에 관여하였다. 서사적 주제의 측면이나 영상의 기법 등을 막론하고 작품은 모두 개인적 특색과 작가의 영화 특징이 매우 도드라지게 구현되었다. 냉철한 시각과 독특한 스타일로 성공을 거둔 청몽홍 감독의 영화는 뚜렷한 개인의 스타일을 포함한 영상 속에서 대만 사회와 일반인의 정신생활에 대한 깊은 사색을 하게끔 그 메시지를 선명하게 전달한다. 본 연구는 가족윤리 서사를 통해 잔혹하고 따뜻한 사회현실을, 영상조명 서사를 통해 개인과 가족의 구원을, 색채미학 서사를 통해 각기 다른 인물의 내면세계를 표현하는 영화 서사의 관점에서 분석하였다 .이 세 가지 서사적 측면에서 영화 서사의 미학을 분석하여 감독인 청몽홍은 영화의 깊은 의미를 관객이 이해할 수 있도록 일조한다. Among Taiwan's new generation directors, Zhong Meng-hong, who is not productive and has a different style, tends to capture microscopic content such as modern family life in Taiwan, and interest in family love and humanity spans all works. The movie < A Sun > was created in 2019 by director Zhong Meng-hong, who drew a cinematic narrative, and the director himself was involved in filming, editing, and directing. Regardless of the aspect of the narrative theme or the technique of the video, the personal characteristics and the author's film characteristics are all very prominent. Successful with a cool-headed perspective and unique style, director Zhong Meng-hong's film clearly conveys the message in a video that includes a clear individual's style to deeply contemplate Taiwanese society and the mental life of the general public. This study analyzed cruel and warm social reality through family ethics narratives, individual and family salvation through video lighting narratives, and film narratives that express the inner world of different characters through color aesthetics narratives.By analyzing the aesthetics of film narrative in these three narrative aspects, director Zhong Meng-hong helps the audience understand the deep meaning of the film.

A Study on the Influence of Chinese University Students' Psychological Capital on Academic Performance

정흠(Xin Zheng),허기(Qi Xu),고흥(Heung Kou) 학습자중심교과교육학회 2023 학습자중심교과교육연구 Vol.23 No.15

목적 본 연구의 목적은 중국 대학생들의 심리적 자본이 학업성취에 미치는 영향을 조사하는 것이다. 심리적 자본과 학업성취도의 관계를 살펴봄으로써 심리적 자본이 학생들의 학업성취도에 미치는 구체적인 영향을 이해할 것이다. 본 연구는 대학, 학생 및 관련 이해관계자들이 학생들의 심리적 자본을 향상시키고, 학업 성과를 향상시키며, 전반적인 발전을 촉진하는 데 도움이 되는 효과적인 개입과 정책을 개발할 수 있는 통찰력을 제공하는 것을 목표로 한다. 본 연구를 통해 중국 대학생들의 심리적 자본이 학업성취도에 미치는 영향을 이해하는 분야에 귀중한 경험적 연구 증거를 제공하고자 한다. 방법 본 연구는 SPSS 25.0 통계 소프트웨어를 이용하여 475명의 대학생을 대상으로 심리적 자본과 학업성취도의 관계를 기술분석, 독립표본 t-test, 일원분산분석, Pearson 상관분석 및 회귀분석을 통해 분석하였다. 결과 대학생들은 서로 다른 인구통계학적 변수에 대하여 심리적 자본과 학업성취도의 변동성이 있었으며, 둘 사이에는 유의한 양의 상관관계가 있었고, 대학생들의 심리적 자본은 학업성취도를 예측하였다. 결론 그 결과를 보면 대학생의 심리적 자본은 학업성취도와 밀접한 관련이 있음을 알 수 있다. 대학들은 학업 성취도를 높이기 위해 대학생들의 심리적 자본을 향상시키기 위한 적절한 조치를 취해야 한다. Objectives The purpose of this study was to investigate the impact of psychological capital on academic performance among Chinese university students. By examining the relationship between psychological capital and academic performance, we will understand the specific impact of psychological capital on students' academic performance. This study aims to provide insights for universities, students, and relevant stakeholders to develop effective interventions and policies to help students enhance their psychological capital, improve their academic performance, and promote overall development. Through this study, we try to contribute valuable empirical research evidence to the field of understanding the impact of psychological capital on academic performance among Chinese university students. Methods This study used SPSS 25.0 statistical software to analyze the relationship between psychological capital and academic performance in 475 university students using descriptive analysis, independent samples t-test, one-way ANOVA, Pearson correlation and regression analysis. Results There was variability in psychological capital and academic performance among university students on different demographic variables, and there was a significant positive correlation between the two, and university students' psychological capital was predictive of academic performance. Conclusions From the results, it is clear that university students' psychological capital is closely related to their academic performance. Universities should take appropriate measures to enhance the psychological capital of university students so as to promote academic performance.

Potential Therapeutic Efficacy of Curcumin in Liver Cancer

Dai, Xin-Zheng,Yin, Hai-Tao,Sun, Ling-Fei,Hu, Xiang,Zhou, Chong,Zhou, Yun,Zhang, Wei,Huang, Xin-En,Li, Xiang-Cheng Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.6

Purpose: Liver cancer, one of the most common cancers in China, is reported to feature relatively high morbidity and mortality. Curcumin (Cum) is considered as a drug possessing anti-angiogenic, anti-inflammation and anti-oxidation effect. Previous research has demonstrated antitumor effects in a series of cancers. Materials and Methods: In this study the in vitro cytotoxicity of Cum was measured by MTT assay and pro-apoptotic effects were assessed by DAPI staining and measurement of caspase-3 activity. In vivo anti-hepatoma efficacy of Cum was assessed with HepG2 xenografts. Results: It is found that Cum dose-dependently inhibited cell growth in HepG2 cells with activation of apoptosis. Moreover, Cum delayed the growth of liver cancer in a dose-dependent manner in nude mice. Conclusions: Cum might be a promising phytomedicine in cancer therapy and further efforts are needed to explore this therapeutic strategy.

A composite crack model for concrete based on meshless method

Lu, Xin-Zheng,Jiang, Jian-Jing,Ye, Lie-Ping Techno-Press 2006 Structural Engineering and Mechanics, An Int'l Jou Vol.23 No.3

A crack model for the fracture in concrete based on meshless method is proposed in this paper. The cracks in concrete are classified into micro-cracks or macro-cracks respectively according to their widths, and different numerical approaches are adopted for them. The micro-cracks are represented with smeared crack approach whilst the macro-cracks are represented with discrete cracks that are made up with additional nodes and boundaries. The widely used meshless method, Element-free Galerkin method, is adopted instead of finite element method to model the concrete, so that the discrete crack approach is easier to be implemented with the convenience of arranging node distribution in the meshless method. Rotating-Crack-Model is proved to be preferred over Fixed-Crack-Model for the smeared cracks of this composite crack model due to its better performance on mesh bias. Numerical examples show that this composite crack model can take advantage of the positive characteristics in the smeared and discrete approaches, and overcome some of their disadvantages.