The PEMFC performance decay are closely linked to fuel cell maintenance and energy management. Existing PEMFC performance decay prediction algorithms generally have the problem of single feature selection, which canno...
The PEMFC performance decay are closely linked to fuel cell maintenance and energy management. Existing PEMFC performance decay prediction algorithms generally have the problem of single feature selection, which cannot adapt to multiple operating conditions. In order to better predict attenuation under multiple operating conditions, this paper proposes a degradation prediction method based on the combination of Relieff's feature selection algorithm and the LSTM network, where Relieff selects the parameters that have high correlation with the degradation of the performance according to the operating parameters of the different conditions as the inputs of the LSTM prediction model in order to make this model more effective. The method's prediction performance is validated using real PEMFC experimental data. The experimental results confirm that the model can effectively selects attenuation-related indicators as input for LSTM, thereby enhancing the accuracy of the PEMFC performance prediction method across various operating conditions.
Fetal heart monitoring is crucial for the early detection of potential risks to fetal health conditions. However, the non-invasive fetal heart monitoring technology using maternal abdominal electrocardiography (AECG) ...
Fetal heart monitoring is crucial for the early detection of potential risks to fetal health conditions. However, the non-invasive fetal heart monitoring technology using maternal abdominal electrocardiography (AECG) is susceptible to interference from maternal electrocardiography (MECG) and multi-source noise. To address the above challenge, we propose a novel Dual-path Encoder-Decoder Model to extract fetal electrocardiography (FECG) signals from maternal abdominal recordings. It can effectively separate and remove MECG interference to obtain FECG. Additionally, a Feature Augmentation Module based on attention-guided is introduced to optimize the quality of the remaining features after MECG removal. Finally, the optimized features are fed into a decoder with external skip connections to reconstruct the FECG signal. Experimental results show that the proposed method achieves outstanding performance on two public datasets, providing an effective solution for fetal health monitoring and assisting physicians in diagnosing fetal abnormalities.
Food is grown, produced, prepared, packaged, stored, distributed, and consumed. The food industries have lagged behind other industrial sectors in integrating robots;the cost of labour can account for up to half of th...
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Upper extremity exoskeletons can provide support to workers for carrying tasks while reducing workers’ muscle fatigue and the prevalence of work-related musculoskeletal disorders in workers’ elbows. Nevertheless, cu...
Upper extremity exoskeletons can provide support to workers for carrying tasks while reducing workers’ muscle fatigue and the prevalence of work-related musculoskeletal disorders in workers’ elbows. Nevertheless, current upper-limb exoskeletons suffer from issues like excessive weight, inconvenient wearability, high rigidity, poor human-machine interaction, and limited modularity. To address these issues, this study introduces a design for a lightweight, powered-assistive, and modular upper-limb exoskeleton. The research developed a prototype specifically tailored for the elbow joint. The experiment encompassed three control modes (Constant torque, Gravity compensation, and Impedance control) to assess the efficacy of the exoskeleton. Subjects engaged in “pick-hold-drop” tasks with varying loads (4kg, 3kg, 2kg), simulating real load-bearing scenarios, performed five times. The experimental results indicate that the proposed design provided effective assistance to the subjects. During the “hold” phase, the EMG Maximum Voluntary Contraction (MVC) values of the subjects’ biceps muscles notably decreased, averaging a reduction of 9.29%.
Intelligent surveillance robots dominate the entire world with its efficiency and accuracy helping in performing dangerous *** surveillance robot helps to survey the area. The violence keeps on growing day by *** pape...
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Smart home is one of the most important applications of ubiquitous computing. In this work, we propose an infrastructure of Vietnamese Smart homes as well as a training framework for activity recognition and forecast....
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An enhanced active reinforcement learning technique has been proposed to enable autonomous robots to operate and execute tasks in industrial automation. This approach combine hierarchical reinforcement learning and Ba...
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In response to the problem of difficulty in accurately predicting the intention of blue troops to attack targets on the land battlefield, this paper proposes a prediction method based on matching degree, aiming to pre...
In response to the problem of difficulty in accurately predicting the intention of blue troops to attack targets on the land battlefield, this paper proposes a prediction method based on matching degree, aiming to predict the intention of blue troops to attack. This article adopts a comprehensive analysis method based on multidimensional information to analyze the matching degree between the blue attacking force and the possible targets of the red side. Firstly, integrate the features of the blue attacking force obtained from the battlefield with the feature information of the red potential target to form a panel of data. Next, the position matching degree, marching angle matching degree, and force target matching degree between the troops and the target are calculated separately, in order to establish the matching degree relationship between the blue attacking troops and the possible attacked targets of the red side, and then use it to speculate on the probability of the blue army implementing the attack, thereby achieving the prediction of the target of the blue attacking action. Finally, an example analysis shows that this matching degree-based prediction method can more comprehensively consider the fusion of multi-dimensional intelligence information, which helps to improve the reliability and effectiveness of target attack prediction.
The rapid growth of data and the increasing complexity of analytical tasks have necessitated the development of efficient data engineering processes and accelerated learning techniques. Intelligent data engineering an...
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Aimed to mitigate the challenges associated with manual detection, such as elevated risks and limited accuracy, a machine vision-based automatic measurement method is proposed for determining the area of a ring cooler...
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