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12. Research on the Development of the Deep Integration of Digital Media Technology and Modern Art Education

Author

Gao Beibei

Subjects
jeff-mbsf model, image retrieval, semantic segmentation network, modern art education, 97m50, Mathematics, QA1-939
Abstract

Zero Sample Image Retrieval Technology This paper proposes a digital media technology for zero sample image retrieval based on the teaching methodology of modern art education classrooms. Then, it studies the zero-sample semantic segmentation network based on spatial embedding and researches the hidden space selection and construction, as well as related loss functions and parameter balance. As a demonstration, an empirical study is conducted in a modern art education classroom at a school. According to the experimental results, 45.3% and 49.6% of students and teachers acknowledge the use of zero-sample image retrieval technology in modern art education. In the quantitative study of the impact on students’ aesthetic ability, there is no significant difference between the scores of students’ aesthetic ability pre-test dimensions in the experimental and control groups in all five dimensions (p>0.05) and the dimension of aesthetic perception ability, the difference between the scores of the experimental and control groups in the pre-test is only 0.01±0.12.

Published
2024
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42. Efficient In/SSZ-39 catalysts for the selective catalytic reduction of NO with CH4.

Author

An, Sufeng, Wang, Peng, Wang, Kuanling, Wang, Xuehai, Li, Baozhong, Guo, Xinwen, Gao, Beibei, Tankov, Ivaylo, and Li, Junjie

Subjects
CATALYTIC reduction, CATALYTIC dehydrogenation, CATALYSTS, COPPER catalysts, CATALYTIC activity, COPPER, TRANSMISSION electron microscopy
Abstract

The M/SSZ-39 catalysts (M = In, Co, Cu, Fe) with different metal species and metal loadings were synthesized using the wet impregnation method on a small-pore SSZ-39 molecular sieve. X-ray diffraction (XRD), transmission electron microscopy (TEM), nitrogen adsorption-dehydrogenation and hydrogen temperature program reduction (H2-TPR) were employed to characterize the effects of various metal components and metal loadings on the performance of CH4 selective catalytic reduction of NO reaction (CH4-SCR). The characterization results showed that the In/SSZ-39 catalyst exhibited significantly higher catalytic activity compared to the Cu-, Co-, and Fe/SSZ-39 catalysts, suggesting that indium (In) is a more suitable active ingredient for the CH4-SCR reaction. The xIn/ SSZ-39 (x = 1, 2, 3, x represents the In loadings of 1.0 wt%, 2.0 wt% and 3.0 wt%) catalysts, with different In loadings, all present excellent CH4-SCR performance. By varying the In loadings, the type of In species present in the catalyst can be regulated, thus enhancing DeNOx activity and CH4 selectivity in the CH4-SCR reaction. At a low temperature of 400 °C and a low CH4/NO feed ratio (CH4/NO = 1), the 3In/SSZ-39 catalyst, featuring highly active InOx clusters, achieves the best low-temperature CH4-SCR performance, with a high NO conversion rate of up to 90% and a CH4 selectivity of up to 74.2%. [ABSTRACT FROM AUTHOR]

Published
2024
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43. Micro/Nanoplastic Exposure on Placental Health and Adverse Pregnancy Risks: Novel Assessment System Based upon Targeted Risk Assessment Environmental Chemicals Strategy.

Author

Wan, Danyang, Liu, Yujie, Chang, Qianjing, Liu, Zhaofeng, Wang, Qing, Niu, Rui, Gao, Beibei, Guan, Quanquan, and Xia, Yankai

Subjects
ENVIRONMENTAL risk assessment, EMERGING contaminants, CELL cycle, PREGNANT women, RISK assessment, PLASTIC marine debris
Abstract

Micro/nanoplastics (MNPs), as emerging pollutants, have been detected in both the maternal and fetal sides of the placenta in pregnant women, and their reproductive toxicity has been demonstrated in in vivo and in vitro experimental models. The Targeted Risk Assessment of Environmental Chemicals (TRAEC) strategy has been innovatively devised to facilitate valid risk assessment, encompassing a comprehensive evaluation of reliability, correlation, outcome fitness, and integrity across four dimensions based on the included published evidence and our own findings. This study serves as an application case of TRAEC, with 40 items of research evidence on the toxicity of MNPs to the placenta, which were rigorously screened and incorporated into the final scoring system. The final score for this TRAEC case study is 5.63, suggesting a moderate-to-low risk of reproductive toxicity associated with MNPs in the placenta, which may potentially increase with decreasing particle size. It is essential to emphasize that the findings also report original data from assays indicating that exposure to high-dose groups (100 μg/mL, 200 μg/mL) of 50 nm and 200 nm polystyrene nanoplastics (PS-NPs) induces HTR8/SVneo cell cycle arrest and cell apoptosis, which lead to reproductive toxicity in the placenta by disrupting mitochondrial function. Overall, this study employed the TRAEC strategy to provide comprehensive insight into the potential reproductive health effects of ubiquitous MNPs. [ABSTRACT FROM AUTHOR]

Published
2024
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