In this work, we design and analyse a Slotted ALOHA (SA) solution for Optical Wireless Communication (OWC)-based Internet of Underwater Things (IoUT). In the proposed system, user devices exchange data with an access ...
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This research provides a thorough description of the original research on developing, evaluating, and putting into practice an energy harvesting system that operates under ambient settings using a Charging bank combin...
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Large buildings like museum generally have multiple rooms, necessitating efficient directional information services to ensure visitors receive accurate location details. However, traditional information services often...
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ISBN:
(数字)9798350389654
ISBN:
(纸本)9798350389661
Large buildings like museum generally have multiple rooms, necessitating efficient directional information services to ensure visitors receive accurate location details. However, traditional information services often fail to convey the necessary information effectively. Indoor navigation addresses this issue by providing real-time navigation within rooms or spaces, identifying the position of objects or people. This study aims to enhance indoor navigation by implementing smart technology, enabling users to locate rooms within large buildings quickly. The application developed utilizes Augmented Reality (AR) technology, interfaced with Bluetooth Low Energy (BLE) signals emitted from an ESP32 Microcontroller, serving as location points. The methodology adopted in this study follows the Multimedia Development Life Cycle, encompassing six stages: Concept, Design, Material Collecting, Assembly, Testing, and Distribution. The results demonstrate the successful integration of AR technology in indoor navigation, using microcontrollers as location markers and BLE for seamless communication between the AR interface and microcontroller. This smart technology application significantly improves user experience by providing intuitive and accurate indoor navigation.
This paper presents a safe learning-based ecodriving framework tailored for mixed traffic flows, which aims to optimize energy efficiency while guaranteeing safety during real-system operations. Even though reinforcem...
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The Internet of Things(IoT)has become an expansion of connected smart devices from small sensors to complex fog and cloud nodes and various network technologies and communication protocols. Devices, including Intellig...
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Microorganisms may cause illness when they enter the body, multiply, and spread to other parts. The rapid spread of COVID-19 to neighboring countries is examined in this research. Anticipating a positive COVID-19 occu...
Microorganisms may cause illness when they enter the body, multiply, and spread to other parts. The rapid spread of COVID-19 to neighboring countries is examined in this research. Anticipating a positive COVID-19 occurrence helps in determining risks and creating countermeasures. As a result, developing robust mathematical models with small error margins for predictions is crucial. Based on these findings, a combined method of evaluating confirmed cases of COVID-19 with universal immunization is recommended. First, the best hyperparameter values of the RBF kernel-based LSSVM (least square support vector machine) were determined using the most recent Evolutionary Mating Algorithm (EMA). After that, LSSVM will complete the task of prediction. This hybrid method has been utilized for time series forecasting in Malaysia since the country's immunization program against COVID-19 got underway. We evaluate our results next to those of well-known methodologies in nature-inspired metaheuristics.
Mobile Edge Computing (MEC) broadens the scope of computation and storage beyond the central network, incorporating edge nodes close to end devices. This expansion facilitates the implementation of large-scale "c...
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This paper addresses the challenges posed by faults in the complex systems of autonomous vehicles within vehicle platoons. It presents a state-space model tailored for vehicle platoons, incorporating an Unknown Input ...
This paper addresses the challenges posed by faults in the complex systems of autonomous vehicles within vehicle platoons. It presents a state-space model tailored for vehicle platoons, incorporating an Unknown Input Observer (UIO) to estimate internal states for each vehicle. By monitoring discrepancies between measured and estimated states, the framework effectively detects faults affecting a vehicle's position, velocity, and acceleration, often stemming from malfunctions in its control and navigation components. The paper also introduces fault detection and identification UIOs to pinpoint faulty parameters and estimate associated fault inputs. To validate its effectiveness, the proposed method undergoes MATLAB simulations across diverse scenarios, confirming its capability to mitigate faults within the vehicle platoon.
Rapid advancement in 3D point cloud object recognition is crucial for robotics, autonomous driving, and augmented reality applications. The traditional methods, including PointNet and its successors, though effective ...
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ISBN:
(数字)9798350322996
ISBN:
(纸本)9798350323009
Rapid advancement in 3D point cloud object recognition is crucial for robotics, autonomous driving, and augmented reality applications. The traditional methods, including PointNet and its successors, though effective in handling unordered point cloud data, need help capturing local structures accurately and efficiently. This paper introduces a novel architecture, the Depthwise Dynamic Graph Overparameterized Neural Network (DGONN), which enhances point cloud object recognition by integrating graph-based features with overparameterized networks. Our method leverages local geometric formations through a neighborhood graph. It performs operations similar to convolutions, utilizing edge convolution (EdgeConv) and depthwise overparameterized convolution (DO-Conv) for dynamic graph updates and efficient feature representation. The proposed DGONN architecture dynamically updates the graph structure with each layer, allowing for adaptive learning and improved performance in 3D object recognition tasks. Through extensive experiments, DGONN demonstrated superior performance over state-of-the-art methods across various metrics on the ModelNet40 and ScanObjectNN datasets with accuracy scores of 92.9% and 78.3%, respectively. This performance highlights its effectiveness in preserving dense spatial relationships and patterns within point cloud data. Future work focuses on making the system faster and more efficient by improving the model’s ability to work well with different types of point cloud data, even in challenging conditions like outdoor scenes, and incorporating new features like texture.
Semiconductor microcavities with a high quality‐factor are an important component for photonics research and technology, especially in the strong coupling regime. While van der Waals semiconductors have emerged as an...
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Semiconductor microcavities with a high quality‐factor are an important component for photonics research and technology, especially in the strong coupling regime. While van der Waals semiconductors have emerged as an interesting platform for photonics due to their strong exciton–photon interaction strength and engineering flexibility, incorporating them in photonic devices requires heterogeneous integration and remains a challenge. This study demonstrates a method to assemble high quality factor microcavities for van der Waals materials, using high reflectance top mirrors which, similar to van der Waals materials themselves, can be nondestructively and reliably peeled off the substrate and transferred onto the rest of the device. Microcavities are created with quality factors consistently above 2000 and up to 11000 ± 800; and the strong coupling regime is demonstrated. The method can be generalized to other types of heterogeneously integrated photonic structures and will facilitate research on cavity quantum electrodynamic and photonic systems using van der Waals materials.
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