the paper explores the design, implementation, and evaluation of an innovative approach to streamline attendance tracking in various domains. Leveraging advancements in computer vision and facial recognition technolog...
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Research on the design of autonomous vehicle controllers has always been the focus and difficulty in the field of autonomous driving. However, withthe rapid development of artificial intelligence technology and the c...
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For enhancing the deployment of Electric Vehicle (EV) withthe grid, the design and control of a novel off-board EV charger is presented in this paper. the proposed topology consists of an Active Front End Converter (...
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Kubernetes is a distributed system infrastructure developed by Apache Foundation, which has become the key platform to process big data and has gotten more and more supports. For recognizing the huge potential of Kube...
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Pitch estimation plays an important role in various music processing and music information retrieval applications. the traditional methods for pitch estimation contain rich prior knowledge but struggle to accurately e...
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the beam hopping (BH) technique in low earth orbit (LEO) satellite communication, which flexibly allocates system resources to enhance resource utilization, has garnered significant attention in recent years. However,...
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ISBN:
(纸本)9798350350227;9798350350210
the beam hopping (BH) technique in low earth orbit (LEO) satellite communication, which flexibly allocates system resources to enhance resource utilization, has garnered significant attention in recent years. However, due to the highly uneven distribution of user locations and demands within the LEO satellite coverage area, fixed multi-beam positions severely limit satellite service efficiency, leading to substantial communication delays and impacting the quality of user service. To reduce communication delays for users, this paper proposes a dynamic beam position(BP) arrangement and beam illumination strategy. Initially, the paper theoretically analyzes the LEO satellite BH communication system, concluding that reducing the number of BPs, optimizing their placement, and designing illumination strategies can effectively decrease packet queueing delays. Subsequently, we introduce a low-complexity, high-precision strategy for minimizing BPs, the distance-weighted p-center improvement (DWPCI) strategy. then, considering the relationship between antenna gain and user location, we develop an optimized BP plan, the user demand-driven beam relocation (UDBR) strategy, to increase beam communication capacity. Finally, we present an interference-free integrated priority queueing (IPQ) strategy, that comprehensively considers communication capacity, queue length, and BP hotspot areas. Simulation results demonstrate that the dynamic BP scheme proposed in this paper improves resource utilization and reduces queueing delays, while the beam illumination strategy further shortens these delays.
Implementation of a highly complicated spiking neuron model on the hardware often requires a large amount of hardware resources. To deal withthis problem, the mathematical accuracy of the neuron model needs to be com...
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A large volume of image data has been increasingly generated in every area, and it is necessary to keep confidential. Multiple image encryption is a promising solution for massive image data. Existing algorithms allow...
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Additive manufacturing (AM) allows to produce parts layer by layer from an STL file. It is then possible through this technology to obtain customized geometries and complex shapes at a lower cost. However, these shape...
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Additive manufacturing (AM) allows to produce parts layer by layer from an STL file. It is then possible through this technology to obtain customized geometries and complex shapes at a lower cost. However, these shapes pose problems of defect control, microstructure, residual stresses, and deformations in parts. this study aims to develop an efficient method allowing defect detection while printing pieces using Fused Deposition Modelling (FDM). the monitoring system contains a camera acquisition system for automatic image capture of filament layers deposited on the print bed. Various monitoring techniques have been simulated to achieve an optimal defect correction solution. Material excess and deficiency are detectable in the layer of actual printed parts. Defects are controlled and compared to original part obtained from computeraideddesign (CAD). An app-designer application was created in this regard. It displays the image reference generated from the G-code, the layer image captured by the camera, and returns the error percentage in the printed layers. the developed method of surface calculation has shown its efficiency in detecting the lack and excess of material, which has an accuracy of 1.07%. this method allows users to stop and monitor printing to save cost, material, and time.
Human emotions play a fundamental role in human-computer interaction, and accurately recognizing emotions is essential for enhancing user-friendly experiences in HCI applications. Emotions are complex and cannot be si...
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