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16th EAI International Conference on Wireless Internet, WiCON 2023

作者： Fu, Jinrong Liu, Yiwen Yan, Haobo Yang, Yahui Peng, Ling Shi, Yuanquan Feng, Tao School of Computer and Artificial Intelligence Huaihua University Huaihua418000 China Key Laboratory of Wuling-Mountain Health Big Data Intelligent Processing and Application in Hunan Province Universities Huaihua418000 China Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province Huaihua418000 China School of Foreign Languages Huaihua University Huaihua418000 China

ISBN: (纸本)9783031580529

With the explosion of ChatGPT, the development of artificial intelligence technology ushered in another explosion. Similarly, with the rapid development of extended reality technology and Internet of Things technology, Metaverse will also usher in greater breakthroughs. However, in the development of the extended reality metaverse under edge computing, many security issues will arise. This paper focuses on data security, considering that data will be transmitted and processed between multiple devices and nodes instead of being concentrated in the cloud, which may bring To solve data security issues, relying on the integrated architecture of Metaverse educational applications based on edge computing (MEC), it provides an identity verification and access with higher security and scalability, better performance, and service requirements that meet the current environment Control mechanism solutions, while analyzing other problems that will arise during the development of the extended reality metaverse. Aiming at the security problem on the edge side, a signature authentication scheme is designed based on Elliptic Curve Cryptography (ECC) integrated blockchain encryption technology and the effectiveness of the method is proved. In order to promote the extended reality metaverse under edge computing, it provides a mirror for the application in the field of education under the condition of ensuring data security. © ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2024.

关键词： Edge computing

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3D visualization technique of human organs

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Journal of Information and Computational Science 2008年第2期5卷 481-488页

作者： Song, Limei Huang, Jinghuan Hu, Liqin Province Key Laboratory of Robot Technique and Application Information Engineering College Southwest University of Science and Technology Mianyang 621010 China

3D visualization of human organs is very important for human analysis. The 3D result is very useful for the surgery analysis, and it can also be used to produce human model by carve machine or 3D printer. There is a lot of method to got 3D data, such as 3D laser scan system, 3D phase measurement, shape from shading, shape from motion, shape from focus, shape from photometric, shape from stereo, etc. Laser scan system is the most commonly used method, but its measurement range relies much on the size of rotation or translation flat. Its measurement precision also relies much on the hardware precision. This paper will introduce a non-orbit, non-contact 3D measurement. The main idea is from shape from stereo technique. It will use two cameras to get the 3D data by the help of lighting system. The two cameras are placed in different view angle. After the high precision calibration system, the 3D absolute stereo coordinate can be got. The proposed 3D imaging method is proved that it is a high precision, low cost, and easy operation stereo matching method. It can be used to the visualization of human face, human head, human tooth, human body, etc. The visualization data can be used in the Face recognition or face surgery, tooth surgery, biologic Computer-aided instruction, human art etc. This method can help the doctor to analyze the surgery before the real surgery starts, thus to decrease the medical accident. The 3D data can also store more vivid information for human art and human memory. The 3D visualization method, the calibration system, the 3D data acquisition system, and the application of 3D visualization data will all be introduced in the paper.

关键词： Calibration

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Synergically improved energy storage performance and stability in sol–gel processed BaTiO_(3)/(Pb,La,Ca)TiO_(3)/BaTiO_(3) tri-layer films with a crystalline engineered sandwich structure

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Journal of Advanced Ceramics 2023年第12期12卷 2300-2314页

作者： Jinpeng Liu Ying Wang Hanfei Zhu Hongyu Luo Xiao Zhai Yu Huan Jing Yan Kun Wang Chao Liu Hongbo Cheng Jun Ouyang School of Chemistry and Chemical Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China School of Physics Shandong UniversityJinan 250100China School of Material Science and Engineering University of JinanJinan 250022China College of Physics and Electronic Engineering Qilu Normal UniversityJinan 250200China China Tobacco Shandong Industrial Co. Ltd.Jinan 250014China Key Laboratory of Key Film Materials&Application for Equipments(Hunan Province) Hunan Provincial Key Laboratory of Thin Film Materials and DevicesSchool of Material Sciences and EngineeringXiangtan UniversityXiangtan 411105China

Achieving an excellent energy storage performance,together with high cycling reliability,is desirable for expanding technological applications of ferroelectric ***,in well-crystallized ferroelectric materials,the concomitant high polarizability and low polarization saturation field have led to a square-shaped polarization–electric field loop,fatally impairing both recoverable energy density(W_(rec))and efficiency(η).Nanocrystalline ferroelectric films with a macroscopically amorphous structure have shown an improved W_(rec) andη,but their much lower polarizability demands an extremely high electric field to achieve such performances,which is undesirable from an economic ***,we propose a strategy to boost the energy storage performances and stability of ferroelectric capacitors simultaneously by constructing a tri-layer film in which a well-crystallized ferroelectric layer was sandwiched by two pseudo-linear dielectric layers with a dominant amorphous *** sol–gel-derived BaTiO_(3)/(Pb,La,Ca)TiO_(3)/BaTiO_(3)(BTO/PLCT/BTO)tri-layer films,we show that the above design is realized via rapid thermal annealing which fully crystallized the middle PLCT layer while left the top/bottom BTO cap layers in a poor crystallization *** sandwiched structure is endowed with an enhanced maximum polarization while a small remnant one and a much-delayed polarization saturation,which corresponds to large W_(rec)≈80 J/cm^(3) and highη≈86%.Furthermore,the film showed an outstanding cycling stability:its W_(rec) andηremain essentially unchanged after 10^(9) electric cycles(DW/W<4%,Dη/η<2%).These good energy storage characteristics have proved the effectiveness of our proposed strategy,paving a way for the utilization of sandwiched films in applications of electric power systems and advanced pulsed-discharge devices.

关键词： energy storage sandwich film amorphous structure nanocrystal cluster stability

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Effect of erbium on homogenization in an Al-Cu-Mg alloy

Effect of erbium on homogenization in an Al-Cu-Mg alloy

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第三届全国有色金属结构材料制备/加工及应用技术交流会

作者： Xu Chen Sudan Zhai Di Gao Jing Xu Key Laboratory of Materials Design and Preparation Technology of Hunan Province Xiangtan University Key Laboratory of Materials Design and Preparation Technology of Hunan Province Xiangtan University Guangdong Provincial Key Laboratory for Technology and Application of Metal Toughening Guangdong In

Effect of rare-earth erbium addition on homogenization in an Al-Cu-Mg alloy has been systematically evaluated by employing optical microscopy (OM), scanning electron microscopy (SEM), differential scanning calorimeter (DSC), electron probe microanalysis (EPMA) and X-ray diffraction (XRD).The microstructures of the as-cast Al-Cu-Mg-Er alloy are identified as Al2Cu phase (θ phase), Al2CuMg phase (S phase) and Al8Cu4Er *** is nearly no change for the ternary Al8Cu4Er phase during the homogenization treatment heated at 480℃.The phase transformation from primary lamellar eutectic structure (θ and S phases) to round shape S phase is detected, and the ripening and coalescence occur on the S *** addition, the overburnt temperature of the Al-Cu-Mg-Er alloy is 490℃ and the suitable homogenization treatment is 480℃ x 36h, which is good consistent with the results of homogenizing kinetic analysis.

关键词： Erbium Al8Cu4Er phase Al2CuMg phase Homogenization Kinetic equation

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Spatial Distribution and Contamination Evaluation of Heavy Metals in the Soil at the Downwind Direction of One Smelter beside Xiangjiang River

Spatial Distribution and Contamination Evaluation of Heavy M...

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The 12th International Symposium on East Asian Recycling technology(第十二届东亚资源回收技术国际研讨会)

作者： Benjie Wei Xiaoxi Zeng Shengcui Zhu Shaodi Yang Jianxin Tang Key Laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of TechnologyZhuzhou 412007China

Remediation of soil contaminated by heavy metals is a complex *** ways should be used in different contamination *** order to safely use cropland and provide a scientific basis for remediation the contaminated soil,the vertical contents of six heavy metals(Cd,Pb,Cr,Cu,Zn and Ni)were detected,which were collected in the depth of 0-100 cm soil at the downwind direction of smelter beside Xiangjiang River.

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Isolation, Identification and Study on Siderophore-producing Ability of Heavy Metal Mobilizing Microbial Pseudomonas sp.K1 from Contaminated Soils

Isolation, Identification and Study on Siderophore-producing...

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The 12th International Symposium on East Asian Recycling technology(第十二届东亚资源回收技术国际研讨会)

作者： Benjie Wei Xiaoxi Zeng Shengcui Zhu Jianxin Tang Key Laboratory of Green Packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of TechnologyZhuzhou 412007China

The cadmium(Cd)and lead(Pb)resistant strains have been isolated from heavy metal contaminated soil around one of the smelters beside Xiangjiang River in *** strains can grew well in the concentration of 2 mmol&#18... 详细信息

关键词： Siderophore-producing bacteria Mobilization Heavy metal-resistant bacteria Pseudomonas sp 16S rDNA

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Study on the potential of antifungal activity of essential oils against fungal pathogens of fruits and vegetables

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Journal of Chemical and Pharmaceutical Research 2013年第12期5卷 443-446页

作者： Deng, Jing Li, Wen Peng, Xi Lin Hao, Xi Hai College of Packaging and Material Engineering Hunan University of Technology Zhuzhou China Key laboratory of Green packaging and Application of Biological Nanotechnology of Hunan Province Hunan University of Technology Zhuzhou China

This research was undertaken to assess the in vitro antifungal potential of the essential oils of clove, cinnamon, aniseed, green prickleyash, Pricklyash peel, cumin and fennel against the five major fungal pathogens of fruits and vegetables using the method of inhibitory zone, the inhibition to the mycelial growth and the minimal inhibitory concentration.i.e, Penicillium italicum, penicillium expansum, Monilinia fructigena, Penicillium sp. and Fusarium spp. The results indicated that clove had significant antifungal activity to all strains, especially against Penicillium italicum. Cinnamon and aniseed had strong antifungal activity to all strains tested except Fusarium spp., especially against Monilinia fructigena. Moreover, Clove could inhibit mycelial growth of all pathogens completely and the minimal inhibitory concentration of clove was less than or equal to 0.5% (v/v). The present results demonstrated that clove oil could be potential sources of natural fungicides to control certain important fungal pathogens of fruits and vegetables.

关键词： Essential oils

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Synthesis of Electron-Rich Benzbisimidazole-Containing Amorphous Poly(Schiff-Base) Networks for Efficient Iodine Capture

SSRN

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SSRN 2023年

作者： Wen, Jikai Hu, Fangqi Liu, Bei Chen, Hongbiao Yang, Mei Liu, Yijiang Li, Huaming College of Chemistry Xiangtan University Hunan Province Xiangtan411105 China Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education Key Laboratory of Polymeric Materials & Application Technology of Hunan Province Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province Xiangtan University Hunan Province Xiangtan411105 China

In this work, two benzbisimidazole-containing amorphous poly(Schiff-base) networks (namely ATA-BA and ATA-BZ) are synthesized by reacting benzbisimidazole-containing aromatic tetra-aldehyde building block (ATA) with benzene-1,4-diamine and benzidine, respectively, under solvothermal conditions. The resultant ATA-BA and ATA-BZ networks possess the specific surface areas of 113 and 87 m2 g−1, respectively. Owing to the presence of abundant imine bonds, alkyl-substituted imidazole rings, and extended π-conjugated systems, ATA-BA network can effectively capture iodine in both vapor and solution phases with capture capacities up to 5.29 g g−1 and 2343 mg g−1, respectively, although its specific surface area is moderately high. In addition, the iodine capture by ATA-BA network in cyclohexane solution is systematically investigated. The experimental results indicate that the iodine adsorption kinetics and capture behavior obey the pseudo-second-order model and Freundlich isotherm model, respectively. © 2023, The Authors. All rights reserved.

关键词： Specific surface area

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A Study on application of Artificial Intelligence in College English Teaching Management and Evaluation 3

A Study on Application of Artificial Intelligence in College...

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3rd International Conference on Electronic Informationtechnology and Smart Agriculture, ICEITSA 2023

作者： Feng, Tao Deng, Jianjie Liu, Yiwen Gao, Yanxia Peng, Ling Fu, Jinrong School of Foreign Languages Huaihua University Hunan Huaihua418000 China School of Computer and Artificial Intelligence Huaihua University Hunan Huaihua418000 China Key Laboratory of Wuling-Mountain Health Big Data Intelligent Processing and Application in Hunan Province Universities Hunan Huaihua418000 China Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province Hunan Huaihua418000 China School of Computing Science University of Glasgow GlasgowG12 8QQ United Kingdom

ISBN: (纸本)9798400716775

With the rapid development of artificial intelligence, AI technology has been widely applied in various industries, including education. In English teaching, AI technology provides teachers with objective and instructive feedback, offers students a more personalized learning experience, helping them improve their English language skills, etc., and brings new development opportunities and challenges to English teaching as well. However, there are still some problems that need to be solved in college English teaching in our university. For this reason, based on the application of AI technology in college English teaching, this paper mainly explores the impact and application countermeasures of AI on college English teaching from the following four aspects: individuals with differences, teaching management, classroom teaching and teaching evaluation. In addition, the profound integration of college English education and AI will foster the advancement and transformation of college English instruction, ultimately serving as a catalyst for its reform. © 2023 ACM.

关键词： Artificial intelligence

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Surface group directed low-temperature synthesis and self-assembly of Al nanostructures for lithium storage

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Nano Research 2023年第1期16卷 1733-1739页

作者： Xianglong Kong Zhi Li Xudong Zhao Shunpeng Chen Zhuoyan Wu Fei He Piaoping Yang Xinghua Chang Xingguo Li Zhiliang Liu Jie Zheng College of Material Sciences and Chemical Engineering Harbin Engineering UniversityHarbin 150001China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Comprehensive Energy Research Center Institute of Science and TechnologyChina Three Gorges CorporationBeijing 100038China Key Laboratory for Mineral Materials and Application of Hunan Province School of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China

Nanostructured aluminum recently delivers a variety of new applications of the earth-abundant Al resource due to the unique properties,but its controllable synthesis remains very challenging with harsh conditions and spontaneously flammable ***,a surface group directed method is developed to efficiently achieve low-temperature synthesis and selfassembly of zero-dimensional(0D)Al nanocrystals over one-dimensional(1D)carbon fibers(Al@CFs)through non-flammable AlCl3 reduction at 70°*** calculations unveil surface‒OLi groups of carbon fibers exert efficient binding effect to AlCl3,which guides intimate adsorption and in-situ self-assembly of the generated Al *** distinctive 0D-over-1D Al@CFs provides long 1D conductive networks for electron transfer,ultrafine 0D Al nanocrystals for fast lithiation and excellent buffering effect for volume change,thus exhibiting high structure stability and superior lithium storage *** work paves the way for mild and controllable synthesis of Al-based nanomaterials for new high-value applications.

关键词： Al nanostructure low-temperature synthesis self-assembly surface group lithium storage

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