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Zhang Mengjie,Yang Xiuyao,Zhu Ling,Xi Dengxian,Cai Hanbing,Yin Tuo,Zhang Hanyao 한국식물생명공학회 2023 Plant biotechnology reports Vol.17 No.5
Syzygium, a vital genus under Myrtaceae, is aesthetically pleasing and resistant and is used for urban greenery. However, with intensive research in recent years, an increasing number of Syzygium plants have been explored for their medicinal value. Analysing the Syzygium chloroplast (cp) genome can help assess its phylogenetic relationships and provide a theoretical basis for the development and application of Syzygium plants. In this study, we first sequenced the complete cp genomes of Syzygium grijsii and Syzygium rehderianum to investigate their phylogenetic relationships in Myrtaceae. In the copy region and reverse repeat region, 129 genes were detected, including 84 protein-coding genes, 37 tRNA genes, and eight rRNA genes. Preference analysis showed that the eight Syzygium species preferred codons ending in A/U and contained abundant repetitive sequences and SSR sites. The ycf1, rpoC2, matK and ndhB genes had the most RNA editable sites and more genes with Ka/Ks < 1, indicating that species evolution was mainly subject to purifying selection. Comparative analysis of the cp genome showed that the eight species boundaries of Syzygium were similar, but the variability of the LSC and SSC regions was higher than that of the IR region, with 280 sites with Pi > 0.015, showing a high level of nucleotide diversity. Phylogenetic analysis showed that Syzygium grijsii was closely related to Syzygium jambos, and S. rehderianum was close to Plinia aureana. The cp genome and phylogeny of S. grijsii and S. rehderianum provide a theoretical basis for Syzygium species identification and exploitation.
Zhengguo Zhang,Xiaoqin Feng,Xiao-Xia Yue,Fu-Qiang An,Wen-Xia Zhou,Jian-Feng Gao,Tuo-Ping Hu,Chin-Chuan Wei 한국화학공학회 2015 Korean Journal of Chemical Engineering Vol.32 No.8
Nitrogen-containing porous carbons, the 800SP-NH3, were synthesized using sunflower plates as the major carbon source carbonized at 800 oC and activated with concentrated aqueous ammonia at the same temperature. The porous carbons were characterized by nitrogen physical adsorption-desorption, surface area analyzer, FT-IR, and SEM. The adsorption properties of the porous carbons towards phenols were also investigated by batch methods. The test results show that the average pore diameter of porous carbon is smaller than 2 nm, and nitrogen-containing chemical groups are formed on its surface. The adsorption capacity for phenol, 4-chlorophenol, and p-nitrophenol is 316.5mg/g, 330.24mg/g and 387.62mg/g due to its developed pore structure and nitrogen-containing chemical groups. The adsorption isotherm data greatly obey the Langmuir model.
Wang, Tuo,Zhang Yi Zhou 한국문화산업학회 2022 문화산업연구 Vol.22 No.3
In order to enhance the economic benefits of cultural product design and enhance the publicity role of cultural products, this paper takes China as a case sample to analyze the relationship between cultural product design and economic development in the era of creative economy, and explore the design of cultural products. This paper uses the improved Cobb-Douglas production function model to simulate and calculate the relationship between cultural product design and economic development. At the same time, this paper classifies and refines the design elements related to product modeling, integrates them into the conceptual prototype system of cultural creative products, and combines shape grammar, genetic algorithm and case-based design technology to cross-recombine modern products and cultural artifacts products to obtain a new cultural product design scheme. The empirical results of the improved Cobb-Douglas production function model show that cultural and creative product design has a significant promoting effect on economic growth, and the overall economic input-output reflects the characteristics of integration. Through the analysis of the relationship between the design of cultural product innovation features and economy, it can be seen that the mining of cultural product innovation attributes can improve economic results. At the same time, the convergence of concept description set of cultural product-related design elements and the mapping relationship between product model-related design elements can directly affect the design results and economic benefits of products. Nevertheless, the limitations of this study are as follows. Firstly, when the Cobb-Douglas production function model is used to analyze the relationship between cultural content and economic development, some variable data may be omitted, which may affect the accuracy of the results. Secondly, the case database of the research object is not perfect, which may affect the accuracy of the search results.
Yining Mu,Tuo Zhang,Tianqi Chen,Fanqi Tang,Jikai Yang,Chunyang Liu,Zhangxiaoxiong Chen,Yiming Zhao,Peng Du,Haibo Fan,Yan Zhu,Guozhen Liu,Ping Li 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2020 NANO Vol.15 No.03
In recent years, all inorganic bismuth lead-halide perovskite nanocrystals [CsPbX3 (X=Cl, Br, I)] have received extensive attention due to their high performance in fluorescence quantum yield, narrow emission spectrum, and adjustable emission range. However, the disadvantages of high cost and poor stability have greatly limited the development prospects of the material. Here, in order to develop a perovskite quantum dot lasing cavity with high chemical stability, high quality factor and low fabrication cost, we have successfully fabricated a 3D random cavity device based on porous silicon/TiO2 nanowires. A TiO2 nanowire is grown on the porous silicon to form a 3D resonant cavity, and a perovskite quantum dot is spin-coated on the surface of the 3D resonant cavity to form a novel 3D complex film. The novel structure enhances the chemical stability and lasing quality factor of the resonant cavity while the fluorescence generated by the large quantum dots in the spatial interference structure constitutes the feedback loop, which will provide favorable support for the development of information optics.
miR-424-5p regulates apoptosis and cell proliferation via targeting Bcl2 in nucleus pulposus cells
Lu Hua-tuo,Xu Yong-qing,Wang Hai,Zhang Xu-lin 한국통합생물학회 2020 Animal cells and systems Vol.24 No.3
Background: miRNAs play an important role in the pathogenesis of intervertebral disc degeneration (IDD). The role and the underlying mechanism of miR-424-5p in human nucleus pulposus (NP) are still unknown. We aimed to explore the role of miR-424-5p in IDD. Methods: Real-time PCR was used to detect the expression of miR-424-5p and Bcl2 in IDD tissues and idiopathic scoliosis tissues. Human NP cells were used in our study. MTT and Hoechst apoptosis assays were used to detect the proliferation and apoptosis of NP cells, respectively. Western blotting assays were used to detect the expression levels of Bcl-2, cleaved caspase-3, cleaved caspase-9, caspase-3 and caspase-9 in degenerative NP cells. A luciferase reporter assay was applied to confirm the relationship between miR-424-5p and Bcl2. Results: Our results showed that the expression of miR-424-5p was increased and Bcl2 was decreased in degenerative NP cells. miR-425-5p expression was negatively correlated with Bcl2 expression in IDD tissues. Suppression of miR-424-5p using an inhibitor increased Bcl2 expression at both the mRNA and protein levels, and it promoted cell viability and inhibited apoptosis. Furthermore, the levels of cleaved caspase-3 and cleaved caspase-9 were downregulated in miR-424-5p-silenced NP cells. Interestingly, we found that silencing miR-424- 5p increased p62 expression at both the mRNA and protein levels. Finally, a luciferase reporter assay verified the binding of the miR-424-5p and the 3’UTR of Bcl2. Conclusion: These results suggested that silencing miR-424-5p suppressed NP cell apoptosis by upregulating Bcl2. Therefore, miR-424-5p might be a novel target for IDD therapies.
Research on the Correlation between Wavy Modeling of Garment and Fabric Properties
( Wen Bin Zhang ),( Wu Tuo ),( Jing Ru Liu ) 한국패션비즈니스학회 2004 패션 비즈니스 Vol.8 No.6
On the basis of garment spatial configuration technology, the correlation of fabric properties and garment modeling was studied in this paper. With abundant experimental data, practical modeling and the judgment of fabric properties and physical shape, we analyzed the change rules that restricting all kinds of parameters of fabric properties and garment modeling, and discussed the relation of wavy modeling and all correlated factors of fabric properties. The result showed the basis of choosing fabric for different style garment, which would help designers choosing fabric for modeling design or structure design.