检索结果-内蒙古大学图书馆

Prediction for Surface Subsidence of Shield Construction in Water-Rich Sand Egg Stratum Based on Edge Intelligence 1

引用

3rd EAI International Conference on Edge Computing and IoT, EAI ICECI 2022

作者： Gao, Yanxia Liu, Yiwen Mi, Chunqiao Tang, Pengju Shi, Yuanquan 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

ISBN: (数字)9783031289903

ISBN: (纸本)9783031289897

The refinement and intelligent control of shield tunneling is the development trend of modern tunnel construction technology. In order to better predict and control the surface subsidence caused by shield excavation, this paper takes the shield construction of Luoyang Metro Line 2 from Longmen Station to Longmen Avenue Station as the background, and proposes a method based on edge intelligence for shield construction in water-rich sand egg strata. Methods for predicting land subsidence. First, low latency and faster data processing are achieved by collecting a large amount of data containing dynamic information about geological conditions and surrounding environments during the shield tunneling process;then using the iFogSim simulator to create different configurations;second, establishing support A surface subsidence model based on vector regression was established, and the model was deployed on the edge equipment;finally, the model was evaluated using the monitoring data of surface subsidence of the water-rich sand egg formation in Luoyang area. The research results show that the edge computing-based system has lower latency and higher processing speed than only deploying cloud data centers. After Pearson-related parameter tuning and model comparison training with Linear as the kernel function, the mean square error of the predicted value and the collected value of the surface subsidence is better than the other two kernel functions. The method proposed in this paper can provide real-time prediction service for large-scale surface subsidence prediction caused by shield construction, and is more practical. © 2023, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.

关键词： Soils

来源：评论

学校读者我要写书评

暂无评论

Synthesis of benzisothiazoles by a three-component reaction using elemental sulfur and ammonium as heteroatom components under transition metal-free conditions

引用

Green Synthesis and Catalysis 2022年第2期3卷 168-174页

作者： Min Wang Xia Meng Changqun Cai Lingyun Wang Hang Gong The Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationCollege of ChemistryXiangtan UniversityXiangtan 411105China School of Material and Chemical Engineering Hunan Institute of TechnologyHengyang 421002China

A strategy for the synthesis of benzisothiazoles by a three-component reaction was developed using elemental sulfur and ammonium as heteroatom components under transition metal-free *** reaction is preferably based on pyridine or quinoline ring substrate,and good to excellent yields can be ***,this reaction has been applied to the gram-scale synthesis of bioactive molecules.

关键词： Synthetic methodology Three-component reaction Transition-metal free Sulfur Benzisothiazole

来源：评论

学校读者我要写书评

暂无评论

Exploration and Practice of Course Homework Metaverse Based on Extended Reality Under Edge Computing 1

引用

3rd EAI International Conference on Edge Computing and IoT, EAI ICECI 2022

作者： Fu, Jinrong Liu, Yiwen Yan, Haobo Gao, Yanxia Xiao, Jianhua 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

ISBN: (数字)9783031289903

ISBN: (纸本)9783031289897

The metaverse originated from science fiction at first, but it gradually came into reality with the continuous power of technology. Aiming at the problems of course work in Chinese universities, such as its function is weakened or suppressed, its form is too abstract, and it lacks elaborate design, this paper proposes a design method of course work meta-universe based on extended reality under edge computing. XR technology is used to realize the interactive immersion of the coursework meta-universe, in order to improve students’ learning enthusiasm and ability to solve abstract problems. Based on the international perspective, this paper systematically combs and analyzes the integration architecture, application scenarios and future trends of the meta-universe education application based on Edge computing (MEC). Four key processes are described: teacher-student interaction, data collection, data feedback and comprehensive evaluation. In order to promote the application of the metaverse in the field of education to provide mirror. The validity of the method is illustrated by the data. © 2023, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.

关键词： Edge computing

来源：评论

学校读者我要写书评

暂无评论

Edge Intelligence Based Garbage Classification Detection Method 1

引用

3rd EAI International Conference on Edge Computing and IoT, EAI ICECI 2022

作者： Zhu, Ruijia Liu, Yiwen Gao, Yanxia Shi, Yuanquan Peng, Xiaoning 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

ISBN: (数字)9783031289903

ISBN: (纸本)9783031289897

To address the problem that the classification and cleaning of garbage in city streets is always ineffective nowadays, the paper proposes a garbage detection method based on edge intelligence. The edge intelligence not only reduces the computational load of the cloud and speeds up the data transmission, but also greatly reduces the data transmission cost. First, images of city streets are collected and uploaded to the edge device via mobile devices in various locations in the city. Then, the edge server is used to temporarily store the image information, and the PeleeNet model deployed on it is used to identify and classify various kinds of garbage, and then visualize the information of each street. Finally, the street garbage information is transmitted to the cloud, which provides a detailed picture of the city’s garbage situation and facilitates city management. In this paper, the PeleeNet model is compared with ResNet, DenseNet and MobileNet models. The results show that the edge devices equipped with PeleeNet model not only have the fastest computation speed and the highest accuracy, but also occupy the least memory. It is fully demonstrated that the method studied in the paper can be applied to the problem of litter detection in urban streets. © 2023, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.

关键词： Smart city

来源：评论

学校读者我要写书评

暂无评论

Highly Accurate Dynamic Gesture Recognition Method Based on Edge Intelligence 1

引用

3rd EAI International Conference on Edge Computing and IoT, EAI ICECI 2022

作者： Changkai, Lu Yiwen, Liu Yanxia, Gao Yuanquan, Shi Xiaoning, Peng 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

ISBN: (数字)9783031289903

ISBN: (纸本)9783031289897

In recent years, gestures have been widely used in many fields. For example, human-computer interaction, virtual reality, gesture translation, etc. The reason for its rapid development is due to the emergence of deep learning and artificial intelligence under today’s society. Due to dynamic gestural interactions, such large intelligent models are often characterized by many parameters, large sample size, frequent parameter updates, and high communication volume. Based on this feature, we propose a cloud-based edge design architecture approach for gesture recognition based on an improved YOLOv5 network model optimization by changing different gestures, background interference, which uses a 21-layer model for the neural network. With the use of edge intelligence, the computational accuracy can be improved by 10.6% over the traditional YOLOv5 with a MAP value of 93.3%. The final recall rate is also improved by 3.6%. The parameter model is only 43.6% of the original one. This shows the practicality and operability of using edge computing as a technique in gesture recognition, as well as the small improvement cost and obvious effect. © 2023, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.

关键词： Gesture recognition

来源：评论

学校读者我要写书评

暂无评论

An Effective and Real-time Time-Slot Power Detection Method 3

An Effective and Real-time Time-Slot Power Detection Method

引用

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

作者： Zhang, Xian Luo, Xinhui Qu, Taiguo Yin, Dong Huaihua University Hunan Huaihua418000 China Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province Huaihua University Huaihua418000 China Key Laboratory of Wuling-Mountain Health Big Data Intelligent Processing and Application in Hunan Province Universities Huaihua University Hunan Huaihua418000 China Department of Art Design Huaihua Tourism School Hunan Huaihua418000 China

ISBN: (纸本)9798400716775

To efficiently detect the time-slot power of the Time Division Multiple Access (TDMA) communication systems such as repeaters and base stations in real-time. This article designs a signal-sampling hardware circuit based on the Advanced RISC Machine (ARM) platform and proposes a comprehensive method to calculate the time-slot power values. The signal sampling circuit uses the ADC108S052 chip with an 8-channel linked to the ARM via the Serial Peripheral Interface (SPI), and the time-slot power detection approach consists of a signal timing sampling module, sampling data reading module, and sampling data processing module to compute the detected time-slot power comprehensively. We design experiments to evaluate the efficacy of the approach to detect the time-slot power with the system power-on and normality running condition, the detection of the system CPU resource consumption for the time-slot power, the detection of the error value for the time-slot power, etc. The experimental results demonstrate that the approach can be efficient, and real-time detection of the time-slot power of the TDMA system, the system of repeaters and base stations and other systems of signal coverage, optimization and so on is of great significance. © 2023 ACM.

关键词： Signal sampling

来源：评论

学校读者我要写书评

暂无评论

Data-driven risk assessment and early warning of learning situations 4

Data-driven risk assessment and early warning of learning si...

引用

4th International Conference on Computer Science and Educational Informatization, CSEI 2022

作者： Mi, Chunqiao Deng, Qingyou Zhao, Changhua Huaihua University Hunan Huaihua China Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province Hunan Huaihua China Key Laboratory of Wuling-Mountain Health Big Data Intelligent Processing and Application in Hunan Province Universities Hunan Huaihua China

ISBN: (数字)9781839537882

ISBN: (纸本)9781839537882

At present, quality governance has become the internal demand of education reform and high-quality education system construction. First, this study analyzed the current research status and existing problems of early warning education in universities and colleges from the aspects of basic data, evaluation index, assessment method, and tool system application. Second, driven by learning situation big data analysis, this study puts forward a complete method system of risk assessment and early warning of learning situations, which consists of basic data collection and processing, index system construction and quantification, model construction and calculation, result expression and visualization, and a prototype information system was also realized by using modern software engineering and visualization technology. Finally, a specific course was taken as an example, and the application practice of learning situation risk assessment and early warning was carried out. The obtained results are very helpful to solve the problems of lagging early warning time, single evaluation factor, outdated technology and so on in traditional early warning education. It has reference significance for improving students' learning quality, teachers' teaching effect and early warning education management efficiency. © 2022 IET Conference Proceedings. All rights reserved.

关键词： Risk assessment

来源：评论

学校读者我要写书评

暂无评论

基于可重构光开关多态荧光聚合物的信息加密工具箱

引用

Science China Materials 2023年第5期66卷 1949-1958页

作者：姜佳伟张培盛田勇林众张崇华崔家喜陈建陈旭东 Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine PolymersHunan Province College Key Laboratory of QSAR/QSPRSchool of Chemistry and Chemical EngineeringHunan University of Science and TechnologyXiangtan 411201China College of Chemistry and Key Laboratory of Polymeric Materials&Application Technology of Hunan Province and Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan ProvinceXiangtan UniversityXiangtan 411105China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education School of ChemistrySun Yat-sen UniversityGuangzhou 510006China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory Jieyang 515200China

具有坚固、智能、且易于编程等特性的信息加密材料对于防止信息泄露和打击造假具有重要意义.为此,我们开发了一种信息加密材料工具箱,该工具箱基于一系列新型的自修复光开关双态(P1和P2)和多态(P3)荧光聚合物.这类聚合物含有两种二芳基... 详细信息

具有坚固、智能、且易于编程等特性的信息加密材料对于防止信息泄露和打击造假具有重要意义.为此,我们开发了一种信息加密材料工具箱,该工具箱基于一系列新型的自修复光开关双态(P1和P2)和多态(P3)荧光聚合物.这类聚合物含有两种二芳基乙烯光致变色荧光基团(SDTE和BTBA)和四重氢键构筑单元(UPy).在不同波长的光照射下,P1/P2可以在绿-猝灭/红-猝灭两态之间交替,而P3可以在红-绿-猝灭三态之间变化.它们可以作为像素单元用来制备可重构的图案和代码;所得到的图案和代码均显示出良好的机械性能和优异的光学特性,包括快速的光响应性、突出的光可逆性、优异的荧光热稳定性和抗酸碱腐蚀的能力.本文展示了该工具箱在3D代码阵列和二维码信息加密中的应用潜能.

关键词： photoswitch diarylethene self-healing polymer thermal stability information encryption

来源：评论

学校读者我要写书评

暂无评论

Ultra-High Electron Affinity and Peripheral Electronegativity Co-Constructing All-Organic Dielectrics with Outstanding Capacitive Performance at High Temperature

SSRN

引用

SSRN 2024年

作者： Li, Xiaona Luo, Hang Wan, Yuting Peng, Bo Liu, Yuan Chen, Sheng Zhang, Dou State Key Laboratory of Powder Metallurgy Central South University Hunan Province Changsha410083 China Key Laboratory of Polymeric Materials and Application Technology of Hunan Province College of Chemistry Xiangtan University Hunan Province Xiangtan411105 China

High temperature resistance is required for electrostatic capacitors, for example, the operating temperature of the capacitors in inverters of hybrid electric vehicles is around 140−150 ℃. However, when the operating temperature of current commercial dielectrics biaxial stretching polypropylene (BOPP) is beyond 105℃, its reliability will be significantly deteriorated. In this work, an all-organic dielectric utilizing two mechanisms—high electron affinity and physical interaction is designed to improve the capacitive performance. Specifically, molecular semiconductor 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) with ultra-high electron affinity (5.24 eV) and peripheral electronegativity is incorporated with polyetherimide (PEI). On the one hand, deep electron traps are successfully constructed by the incorporation of high-electron-affinity F4-TCNQ to capture free electrons. Moreover, the captured electrons are difficult to escape because of the Coulomb force between electrons in low unoccupied molecular orbital (LUMO) of F4-TCNQ and holes in highest occupied molecular orbital (HOMO) of PEI. On the other hand, physical interaction is formed between peripherally electronegative groups of F4-TCNQ and positively charged phenyls of PEI and improve the packing density between chains and the Young’s modulus, thereby enhancing electromechanical breakdown strength. Two mechanisms work together, realizing significantly suppressed conductivity loss and increased breakdown electric field. Accompanied with improved dielectric constant, the discharged energy density of F4-TCNQ/PEI composites is significantly increased in a wide temperature range. Especially at 150 ℃, the discharged energy density (Ue) of 0.6 wt.% F4-TCNQ/PEI reaches 7.84 J/cm3 under 670 kV/mm, which is 123% higher than that of PEI (3.52 J/cm3), while the Ue is still as high as 5.12 J/cm3 even the discharged efficiency (η) is over 90%. This work exhibits a promising prospect of all-organic dielect

关键词： Dielectric materials

来源：评论

学校读者我要写书评

暂无评论

Microstructural and mechanical behavior of a CoCrFeNiCu_4 non-equiatomic high entropy alloy

引用

Journal of Materials Science & technology 2021年第1期60卷 35-43页

作者： Zijuan Xu Zhongtao Li Yang Tong Weidong Zhang Zhenggang Wu College of Materials Science and Engineering Hunan Province Key Laboratory for Spray Deposition Technology and ApplicationHunan UniversityChangsha 410082China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan UniversityChangsha 410082China Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTN 37831USA

High entropy alloy(HEA)-based alloy design is experiencing a conceptual broadening from equiatomic alloys to non-equiatomic *** provide experimental basis for designing Cu-rich non-equiatomic HEAs,in the current study,a dual phase(Cu-rich and CoCrFeNi-rich phases) face-centered cubic CoCrFeNiCu_(4) alloy was systematically *** provided initial and experiment-based understanding of the behavioral change of the alloy during a variety of thermal cycles and thermomechanical *** current results indicate that,during heating,preferred precipitation of Cu-rich particles occurs,leading to more pronounced compositional differences between the two constituent FCC phases and increased relative volume fraction of the Cu-rich *** Alloy exhibits a continuous melting and discontinuous solidification of the Cu-rich and CoCrFeNi-rich *** being cold-rolled to ~90 % thickness reduction,the alloy exhibits a recrystallization temperature higher than 800℃.Annealing at 300 and 500℃ led to strength reduction and/or ductility decrease;further increasing annealing temperature monotonically caused softening and ductilization due to decreased density of pre-existing *** yield-drop phenomena observed for the 900℃-and 1000℃-annealed specimens are associated with the locking of pre-existing dislocations by some "atmosphere",the nature of which warrants further elucidation.

关键词： High entropy alloy Non-equiatomic alloy Microstructure Melting and solidification Mechanical behavior

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：