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Ronghui Wu(무용혜),Younghwan Pan(반영환) 대한산업공학회 2024 대한산업공학회 춘계학술대회논문집 Vol.2024 No.5
In recent years, the Edu-Metaverse has attracted considerable attention. This study aims to conduct data mining and visualization analysis of the Edu-Metaverse field through scientific metric analysis, focusing on cross-disciplinary integration, frontier developments, and hot topics. Firstly, utilizing the Java application CiteSpace, we constructed a visualization map of 366 articles from the Web of Science Core Collection database. This map includes analyses of national cooperation, keyword clustering, burst detection, and time zone mapping. Secondly, we reviewed and summarized the status and hot topics of the generated Edu-Metaverse visualization map. Finally, the study conducted an exploratory analysis of future trends and challenges in Edu-Metaverse research, aiming to fill theoretical gaps in the literature analysis of Edu-Metaverse while providing references and insights for academia and practitioners. This paper aims to promote academic exchange and research collaboration in the Edu-Metaverse field, fostering its continuous development and innovation.
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Ronghui Wu(무용혜),Younghwan Pan(반영환) 한국경영과학회 2024 한국경영과학회 학술대회논문집 Vol.2024 No.5
In recent years, the Edu-Metaverse has attracted considerable attention. This study aims to conduct data mining and visualization analysis of the Edu-Metaverse field through scientific metric analysis, focusing on cross-disciplinary integration, frontier developments, and hot topics. Firstly, utilizing the Java application CiteSpace, we constructed a visualization map of 366 articles from the Web of Science Core Collection database. This map includes analyses of national cooperation, keyword clustering, burst detection, and time zone mapping. Secondly, we reviewed and summarized the status and hot topics of the generated Edu-Metaverse visualization map. Finally, the study conducted an exploratory analysis of future trends and challenges in Edu-Metaverse research, aiming to fill theoretical gaps in the literature analysis of Edu-Metaverse while providing references and insights for academia and practitioners. This paper aims to promote academic exchange and research collaboration in the Edu-Metaverse field, fostering its continuous development and innovation.
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Weighted $L^p$-boundedness of singular integrals with rough kernel associated to surfaces
Ronghui Liu,Huoxiong Wu 대한수학회 2021 대한수학회지 Vol.58 No.1
In this paper, we prove weighted norm inequalities for rough singular integrals along surfaces with radial kernels $h$ and sphere kernels $\Omega$ by assuming $h\in{\triangle}_{\gamma}(\mathbb{R}_+)$ and $\Omega\in\mathcal{WG}_\beta({\rm S}^{n-1})$ for some $\gamma>1$ and $\beta>1$. Here $\Omega\in\mathcal{WG}_\beta({\rm S}^{n-1})$ denotes the variant of Grafakos-Stefanov type size conditions on the unit sphere. Our results essentially improve and extend the previous weighted results for the rough singular integrals and the corresponding maximal truncated operators.
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Wu, Jinhua,Liu, Ronghui,Li, Hua,Yu, Hui,Yang, Yalan Asian Australasian Association of Animal Productio 2021 Animal Bioscience Vol.34 No.11
Objective: The swine leukocyte antigen (SLA) gene group, which is closely linked and highly polymorphic, has important biomedical significance in the protection and utilization of germplasm resources. However, genetic polymorphism analyses of SLA microsatellite markers in Chinese miniature pigs are limited. Methods: Eighteen pairs of microsatellite primers were used to amplify the SLA regions of seven miniature pig breeds and three wild boar breeds (n = 346) from different regions of China. The indexes of genetic polymorphism, including expected heterozygosity (He), polymorphic information content (PIC), and haplotype, were analyzed. The genetic differentiation coefficient (Fst) and neighbor-joining methods were used for cluster analysis of the breeds. Results: In miniature pigs, the SLA I region had the highest numbers of polymorphisms, followed by the SLA II and SLA III regions; the region near the centromere had the lowest number of polymorphisms. Among the seven miniature pig breeds, Diannan small-ear pigs had the highest genetic diversity (PIC value = 0.6396), whereas the genetic diversity of the Hebao pig was the lowest (PIC value = 0.4330). The Fst values in the Mingguang small-ear, Diannan small-ear, and Yunnan wild boars were less than 0.05. According to phylogenetic cluster analysis, the South-China-type miniature pigs clustered into one group, among which Mingguang small-ear pigs clustered with Diannan small-ear pigs. Haplotype analysis revealed that the SLA I, II, and III regions could be constructed into 13, 7, and 11 common haplotypes, respectively. Conclusion: This study validates the high genetic diversity of the Chinese miniature pig. Mingguang small-ear pigs have close kinship with Diannan small-ear pigs, implying that they may have similar genetic backgrounds and originate from the same population. This study also provides a foundation for genetic breeding, genetic resource protection, and classification of Chinese miniature pigs.
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Qiang Liu,Zhaohui Meng,Ronghui Wu,Liyun Ma,Wu Qiu,Honghao Zhang,Shuihong Zhu,Lingqing Kong,Zijjie Xu,Aniruddha Patil,Xiangyang Liu 한국섬유공학회 2019 Fibers and polymers Vol.20 No.10
In this work, regenerated silk fibroin (RSF) and silicon dioxide (SiO2) composite fiber was successfully extrudedby wet spinning method. The effect of SiO2 addition on structure of the composite fiber at microscopic level is studied, whichsubsequently correlated to the mechanical performance. The best concentration ratio for composite fiber is identified byscreening SiO2 concentration from 0.025 w/w% to 0.5 w/w%. The experimental results revealed that the SiO2 at a lowconcentration of 0.1 w/w% was well distributed. The breaking stress, breaking strain and Young’s modulus at 0.1 w/w% SiO2addition of the RSF fibers increased considerably compared to the neat RSF fibers from 243±3 to 458±21 MPa, 51±4 % to54±7 % and 6.34±0.55 to 11.69±1.12 GPa, respectively. To the best of our knowledge, this is the first report for RSF/SiO2composite fiber. We believed the insight provided in this report which looks into the structural evolution should be beneficialto the future design and building of other advanced functional fibers.
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