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A multilevel analysis of the effects of disciplinary climate strength on student reading performance
Siwen Guo,Lingyan Li,Danhui Zhang 서울대학교 교육연구소 2018 Asia Pacific Education Review Vol.19 No.1
Climate strength was first conceptualised in the organisational psychology literature as the within-group agreement on the perceptions of climate. In contrast to the deep study of climate level, climate strength has not been clarified by school climate research. The purpose of this cross-cultural study is to identify the main effect of disciplinary climate strength on student reading performance, and its moderating effect on the relationship between disciplinary climate level and student reading performance. A multilevel analysis was conducted on 2009 data from the Programme for International Student Assessment (PISA) from Shanghai-China, Japan, and the United States (US). The result showed a significantly positive relationship between climate strength and student reading performance in Shanghai-China and the US. Moreover, a moderating effect of climate strength was found in Shanghai-China and the US. The effects of climate strength were further examined in strong and weak conditions. School-level predictors of climate strength were also examined. The differences in disciplinary climate strengths and their effects on student reading performance suggested some culture differences in these countries/areas.
<조씨고아(趙氏孤兒1615)>의 비극적 미학에 관한 연구
이시원 ( Li Siwen ) 한양대학교 공연예술연구소 2023 공연예술연구 Vol.10 No.-
This paper explores the presence and distinctive characteristics of traditional Chinese tragic aesthetics by comparing them with Western tragic aesthetics. Contrary to the belief that traditional Chinese tragedy is less developed, this study validates the existence of a mature form of Chinese tragic art. The analysis focuses on both the common and unique aspects of traditional Chinese tragic aesthetics, acknowledging their shared essence with Western tragic aesthetics while highlighting their distinct attributes. The study begins by discussing the universality of tragic awareness in human culture, emphasizing the human struggle against adversity and the transcendent effect that both Chinese and Western tragic aesthetics evoke. However, the study underscores that due to China's historical, cultural, and social differences with the West, traditional Chinese tragic aesthetics possess unique qualities. It notes that the sources of traditional Chinese tragic narratives are diverse and often depict characters from lower socioeconomic backgrounds, reflecting the influence of urbanization and economic development on the preferences of the audience. Furthermore, itobserves that many traditional Chinese tragedies conclude with a happy ending or resolution, a reflection of the Confucian principle of maintaining balance and harmony. The study also highlights the collective spirit in Chinese tragic aesthetics, closely linked to Confucian ethical values. The paper concludes by reiterating the confirmation of traditional Chinese tragic aesthetics' existence and distinctiveness, contrary to claims of its weakness. It emphasizes the need to consider both the shared and unique elements of tragic aesthetics in the study of traditional Chinese tragedy, correcting the misconception that Chinese tragedy is absent. Overall, this research underscores the significance of comprehensively exploring the universal and specific aspects of Chinese traditional tragic aesthetics within its historical and cultural context.
Academic Management and Analysis Method of MOOC
Fei Lang,Siwen Zhang,Shaobo Li,Guanglu Sun 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.11
MOOC (Massive Open Online Courses), is a new mode of distance education courses based on the Internet technology. To solve problems in MOOC, such as lacks of management, supervision and comprehensive evaluation etc., this paper aims to study MOOC academic management and analysis method in contexts of colleges and universities. To supervise and trace students’ learning process, an academic management system of MOOC was constructed. To assess and predict students’ learning trends and achievements, an academic analysis model was established based on learning and interaction data analysis. Experimental results prove the above method insures expected learning effects when applying MOOC in colleges and universities.
Review on oxidative desulfurization of fuel by supported heteropolyacid catalysts
Jiarong Li,Zhi Yang,Siwen Li,Qiping Jin,Jianshe Zhao 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-
Desulfurization of fuel has been an important issue in fuel refining process. Hydrodesulfurization, as atraditional and commercial desulfurization technique for removing sulfur compounds, has been widelyresearched for decades. But as the environmental policy implemented on fuel becoming stricter, it ismore difficult to remove organic sulfur compounds by hydrodesulfurization technology. Therefore, nonhydrodesulfurizationtechnologies developed rapidly in recent years. Among all novel desulfurizationtechnologies, oxidative desulfurization (ODS) functions best with its mild reaction condition and efficientdesulfurization capacity. Heteropolyacid (HPA) has been intensively investigated because the HPA hasdiscrete ionic structure and high proton mobility, which makes it extremely promising in catalysis. As aresult, HPA has been applied in a variety of synthetically selective transformations of organic substancesand the ODS is one of them. However, HPA have shortcomings such as their high solubility in polarsolvents and low specific surface area. To overcome these problems, many works have been done tocombine heteropolyacids with other materials. The main derivatives of HPA used in ODS are supportedheteropolyacid, phase transfer heteropolyacid catalyst and polyoxometalate based ionic liquid. Thecatalytic activity and reusability of HPA are substantially increased after modification. The works onheteropolyaicds for ODS from 2010 to 2019 will be summarized in this review.
Dong Ruyi,LIUYANAN,Wang Siwen,Heidari Ali Asghar,Wang Mingjing,Chen Yi,Wang Shuihua,Chen Huiling,Zhang Yudong 한국CDE학회 2024 Journal of computational design and engineering Vol.11 No.1
The kernel search optimizer (KSO) is a recent metaheuristic optimization algorithm that is based on kernel theory, eliminating the need for hyper-parameter adjustments, and demonstrating excellent global search capabilities. However, the original KSO exhibits insufficient accuracy in local search, and there is a high probability that it may fail to achieve local optimization in complex tasks. Therefore, this paper proposes a multi-strategy enhanced KSO (MSKSO) to enhance the local search ability of the KSO. The MSKSO combines several control strategies, including chaotic initialization, chaotic local search mechanisms, the high-altitude walk strategy (HWS), and the Levy flight (LF), to effectively balance exploration and exploitation. The MSKSO is compared with ten well-known algorithms on 50 benchmark test functions to validate its performance, including single-peak, multi-peak, separable variable, and non-separable variable functions. Additionally, the MSKSO is applied to two real engineering economic emission dispatch (EED) problems in power systems. Experimental results demonstrate that the performance of the MSKSO nearly optimizes that of other well-known algorithms and achieves favorable results on the EED problem. These case studies verify that the MSKSO outperforms other algorithms and can serve as an effective optimization tool.