Volume 10
Published on August 2024Digital technologies and data analytics are transforming the manufacturing industry by enabling smart manufacturing, which integrates these technologies with industrial processes to achieve efficiency, quality, and adaptability. This report explores the fields of digital twins and data analytics in smart manufacturing, and introduces the technologies, strategies, and case studies that are promising in the future of the industry. It also presents a unique fusion of digital twin and additive manufacturing, also known as 3D printing, by using NVIDI Omniverse platform, and its extension with Fusion 360 from Autodesk. The report also demonstrates the simulation and visualization of the movements and actions of UPrint SE 3D printer in a virtual environment, which can enhance the design, testing, and optimization of printing processes. Lastly, the report discusses the implications and limitations of this approach and provides promising recommendations for future work and research in this field.
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In the field of materials science, Electron Backscatter Diffraction (EBSD) technology has become a powerful tool for microstructure analysis, demonstrating unique advantages in the study of material texture, grain size, and orientation distribution. Recognizing that the quality of EBSD sample preparation directly impacts the accuracy and reliability of data, this paper delves into the principles of EBSD technology and explores optimized methodologies for sample preparation. By examining the influence of different preparation techniques on EBSD data quality, this study systematically summarizes best practices for critical steps such as surface treatment, polishing, and electrolytic polishing. The research reveals that meticulous sample preparation significantly enhances the quality of EBSD images, thereby improving the resolution and precision of diffraction data. Additionally, addressing the challenges and limitations encountered in practical applications of EBSD technology, a series of improvement measures are proposed to facilitate the widespread application of EBSD in materials science. In summary, this paper aims to provide researchers with a comprehensive EBSD sample preparation guideline, fostering advanced research and practical applications in the field of material analysis.
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Artificial Narrow Intelligences (ANI) are rapidly becoming an integral part of everyday consumer technology. With products like ChatGPT, Midjourney, and Stable Diffusion gaining widespread popularity, the demand for local hosting of neural networks has significantly increased. However, the typical 'always-online' nature of these services presents several limitations, including dependence on reliable internet connections, privacy concerns, and ongoing operational costs. This essay will explore potential hardware solutions to popularize on-device inferencing of ANI on consumer hardware and speculate on the future of the industry.
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With the rapid development of information technology, data has become the cornerstone of digitalization, networking, and intelligence, profoundly impacting various sectors including production, distribution, circulation, consumption, and social service management. As the core resource of the digital economy and information society, the economic and social value of big data is increasingly prominent, yet it has also become a prime target for cyberattacks. In the face of a complex and ever-changing data environment and advanced cyber threats, traditional big data security technologies such as Hadoop and other mainstream technologies are proving inadequate in ensuring data security and compliance. Consequently, cryptography-based technologies such as fully encrypted execution environments and efficient data encryption and decryption have emerged as new directions for security protection in the field of big data. This paper delves into the latest advancements and challenges in this area by exploring the current state of big data security, the principles of endogenous security technologies, practical applications, and future prospects.
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This paper constructs a model of the internal cross-sectional temperature field of power cables based on the multiphysics coupling simulation software, Comsol, to conduct an in-depth analysis of internal defects in power cables. First, a temperature field coupling model for power cables was built, and the accuracy of the simulation model was verified through mesh and boundary condition analysis. Subsequently, the distribution patterns of the internal temperature field of power cables were investigated under normal operating conditions and typical fault conditions (eccentric defects, internal water tree defects). The simulation results reveal that the presence of faults affects the insulation capability of the cable’s insulation layer, causing an imbalance in internal heat conduction and thus impacting the temperature distribution within the power cable. Additionally, this paper compares the internal temperature field distribution of power cables under different conditions (changing coil current and heat transfer coefficient) during normal operation. The results indicate that the temperature rise of power cables is closely related to the current carrying capacity and the heat transfer coefficient. Through an in-depth study of the temperature field distribution in power cables, this research provides a more precise, efficient, and economical reference solution for fault detection and repair in power systems, thereby enhancing the stability and safety of power cables and promoting the sustainable development of power cable technology.
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This paper investigates the potential of AI tools, particularly AI pens such as the Caterpillar pen, to enhance children's intrinsic motivation for English language learning in China. Compared to traditional exam-oriented English education in China, the AI pens offer a more engaging and natural language environment through features like audio readings with native pronunciation, graded difficulty levels for various reading abilities, and repetitive exposure to vocabulary and sentence structures. These features can significantly increase children's intrinsic motivation by making learning enjoyable and effective. However, challenges such as limited research on AI's impact on intrinsic motivation and the ongoing need for parental supervision exist. To maximize the benefits of AI tools, they should be integrated into daily learning activities and used in conjunction with traditional teaching methods as opposed to replacing these methods. In this way, AI technology can become a valuable asset in fostering a love of language learning and in turn improving children's overall language proficiency.
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This paper provides an overview of AI and ChatGPT, covering their definitions, the evolution of AI, ethical concerns surrounding their interaction with humans, and their extensive applications in everyday life. The advantages and disadvantages of AI and ChatGPT are examined. Furthermore, the essay delves into the technical aspects by explaining the algorithm and presenting a graph illustrating the functioning of ChatGPT. A historical background of ChatGPT is also included. The paper specifically focuses on the impact of AI in four industries: education, finance, healthcare, and computing. It explores their applications within these sectors and makes predictions regarding the future implications of AI on human life and work. In medical industry, AI can help human a lot in new drug research, medical imaging, medical services innovation and patient health management. In education realm, the application of AI can help people on intelligence process support, intelligence teacher assistant intelligence education and management, and intelligence environment building. Also, the application of AI in finance realm has many benefits in bank, insurance, capital markets business and financial support industry. What is more, the application of it in computer industry helps human on network security, systematic reviews and data analysis.
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The paper aims to investigate whether electric cars are environmentally friendly. With the growing global awareness of environmental issues, the impact of automobile emissions on the environment has become a major concern. Many countries are implementing measures to replace fuel cars with new energy-efficient electric vehicles, which will have a significant impact on both the environment and the international economy. This paper discusses the environmental impact of the shift towards electric vehicles, focusing on two aspects: the energy materials used and the evaluation standards for automobiles.
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Deep learning-based object detection algorithm is becoming more and more important in autonomous driving area with an increasing amount and trending these days. This article first provides definitions and introduces an autonomous driving and object detection. Subsequently, a detailed discussion is conducted on object detection, comparing traditional object detection methods with deep learning object detection algorithms. The shortcomings of traditional methods highlighted the advantages of deep learning-based object detection algorithms, laying the groundwork for the use of deep learning object detection algorithms in the following text. Finally, several detection objects and detection scenarios are introduced. The detection objects are divided into different parts, including moving targets, stationary targets, and infrared targets. Moving targets such as pedestrians and vehicles, while stationary targets include traffic signs and lanes. The detection scenarios are classified into ordinary scene detection and complex scene detection. In the discussion section, the commonly used datasets for autonomous driving target detection training are listed first, such as the KITTI dataset, the COCO dataset, and so on. Subsequently, a discussion was conducted on algorithms, mainly focusing on the models and features in one stage and two stages. For different types of algorithms, this article discusses the advantages and disadvantages of the algorithms. When judging the superiority or inferiority of algorithms, there are usually two aspects: detection accuracy and detection speed. FPS is a commonly used indicator for detection speed, and detection accuracy mainly covers five aspects, namely accuracy, precision, recall, AP (average precision), and MAP (mean average precision). Finally, how the improved algorithms are applied and solve the existing problems is discussed.
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The most direct effect on the efficiency is the temperature of solar modules. I discussed the reasons why the temperature of modules can affect the efficiency of solar cells and the explanation of how can we improve the solar system to decrease the influence of high cell temperature. The scarcity of traditional energy increases, so the scale of use of renewable energy increases. The efficiency of the energy-generating system is the most important factor that users consider. The extent of change in the temperature of solar modules is the highest, so the temperature of solar modules can cause an influential decrease in the efficiency of energy generation. I have used the data based on experiments set by other authors to illustrate the extent of influences of four main variables on the efficiency of the solar cells. I used of the properties of air and water to design two schemes to minimize the effects of high temperatures of solar cells. I compared the change in efficiency under one unit increase in variables. All of the data used in calculating or referring are from different experiments done by different authors. I connected the results with real conditions to determine the most influential variables-temperature of modules. Based on the theoretical result, the shading effect has the largest value of decrease in efficiency, so the effects of shading are considered by manufacturers a lot. Based on real-life situations, the scale of change in the temperature of modules and the actual temperature of modules are always higher than the standard operating temperature, 25℃, so the temperature of modules is the most influential variable. Monocrystalline silicon solar cells have different extents of influence of variables to polycrystalline silicon solar cells, these two types of solar cells are suitable to be installed in regions with low humidity. However polycrystalline solar cells are more sensitive to increases in the temperature of modules, so they need to pay more attention and avoid the effects of high temperature of modules.
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