Numerical design of an efficient Ho3+-doped InF3 fiber laser at ∼3.2 μm
September 2024
In this work, we theoretically unlock the potential of Ho3+-doped InF3 fiber for efficient ∼3.2 μm laser generation (from the 5F4,5S2→5F5 transition), by employing a novel dual-wavelength pumping scheme...
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An approach to estimate tree height using PolInSAR data constructed by the Sentinel-1 dual-pol SAR data and RVoG model
September 2024
We estimate tree heights using polarimetric interferometric synthetic aperture radar (PolInSAR) data constructed by the dual-polarization (dual-pol) SAR data and random volume over the ground (RVoG)...
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Source localization based on field signatures: Laboratory ultrasonic validation
Available online 14 July 2024
Location awareness in wireless networks is essential for emergency services, navigation, gaming and many other applications. This article presents a method for source localization based on measuring...
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Electromagnetic scattering and imaging simulation of extremely large-scale sea-ship scene based on GPU parallel technology
June 2024
Aiming to solve the bottleneck problem of electromagnetic scattering simulation in the scenes of extremely large-scale seas and ships, a high-frequency method by using graphics processing unit (GPU)...
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Enhancing personalized exercise recommendation with student and exercise portraits
June 2024
The exercise recommendation system is emerging as a promising application in online learning scenarios, providing personalized recommendations to assist students with explicit learning directions. Existing...
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Data augmentation method for insulators based on Cycle GAN
June 2024
Data augmentation is an important task of using existing data to expand data sets. Using generative countermeasure network technology to realize data augmentation has the advantages of high-quality...
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Miniaturized power detection module operating in millimeter wave band
June 2024
The miniaturized broadband detection module can be embedded into the microwave application system such as the front end of the transmitter to detect the power or other parameters in real time. It is...
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CNN-LSTM based incremental attention mechanism enabled phase-space reconstruction for chaotic time series prediction
June 2024
To improve the prediction accuracy of chaotic time series and reconstruct a more reasonable phase space structure of the prediction network, we propose a convolutional neural network (CNN)-long short-term...
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Machine learning algorithm partially reconfigured on FPGA for an image edge detection system
June 2024
Unmanned aerial vehicles (UAVs) have been widely used in military, medical, wireless communications, aerial surveillance, etc. One key topic involving UAVs is pose estimation in autonomous navigation....
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Efficient ECG classification based on Chi-square distance for arrhythmia detection
June 2024
This study introduces a new classifier tailored to address the limitations inherent in conventional classifiers such as K-nearest neighbor (KNN), random forest (RF), decision tree (DT), and support...
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Low profile cavity-embedded ultra-wideband UHF array antenna with end-fire beams
June 2024
A low profile, vertically polarized, ultra-wideband array antenna with end-fire beams operating in an ultra-high frequency (UHF) band is developed in this paper. The array antenna consists of 1×16 log-periodic...
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Effective approach for conformal subarray design based on maximum entropy of planar mappings
Available online 22 June 2024
In this paper, an effective algorithm for optimizing the subarray of conformal arrays is proposed. The method first divides the conformal array into several first-level subarrays. It uses the X algorithm...
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Global-Local combined features to detect pain intensity from facial expression images with attention mechanism1
Available online 22 May 2024
The estimation of pain intensity is critical for medical diagnosis and treatment of patients. With the development of image monitoring technology and artificial intelligence, automatic pain assessment...
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Evaluation of a software positioning tool to support SMEs in adoption of big data analytics
March 2024
Big data analytics has been widely adopted by large companies to achieve measurable benefits including increased profitability, customer demand forecasting, cheaper development of products, and improved...
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Big data challenge for monitoring quality in higher education institutions using business intelligence dashboards
March 2024
As big data becomes an apparent challenge to handle when building a business intelligence (BI) system, there is a motivation to handle this challenging issue in higher education institutions (HEIs)....
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Iterative physical optics method based on efficient occlusion judgment with bounding volume hierarchy technology
March 2024
This paper builds a binary tree for the target based on the bounding volume hierarchy technology, thereby achieving strict acceleration of the shadow judgment process and reducing the computational...
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Benchmarking YOLOv5 models for improved human detection in search and rescue missions
March 2024
Drone or unmanned aerial vehicle (UAV) technology has undergone significant changes. The technology allows UAV to carry out a wide range of tasks with an increasing level of sophistication, since drones...
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Multi-scale persistent spatiotemporal transformer for long-term urban traffic flow prediction
March 2024
Long-term urban traffic flow prediction is an important task in the field of intelligent transportation, as it can help optimize traffic management and improve travel efficiency. To improve prediction...
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Fine-grained grid computing model for Wi-Fi indoor localization in complex environments
March 2024
The fingerprinting-based approach using the wireless local area network (WLAN) is widely used for indoor localization. However, the construction of the fingerprint database is quite time-consuming....
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Machine learning model based on non-convex penalized huberized-SVM
March 2024
The support vector machine (SVM) is a classical machine learning method. Both the hinge loss and least absolute shrinkage and selection operator (LASSO) penalty are usually used in traditional SVMs....
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High-sensitivity phase imaging eddy current magneto-optical system for carbon fiber reinforced polymers detection
December 2023
This paper proposed a high-sensitivity phase imaging eddy current magneto-optical (PI-ECMO) system for carbon fiber reinforced polymer (CFRP) defect detection. In contrast to other eddy current-based...
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Characteristics of sub-synchronous oscillation in grid-connected wind farm system
December 2023
With the rapid development of wind power, wind turbines are accompanied by a large quantity of power electronic converters connected to the grid, causing changes in the characteristics of the power...
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Low working loss Si/4H–SiC heterojunction MOSFET with analysis of the gate-controlled tunneling effect
December 2023
A silicon (Si)/silicon carbide (4H–SiC) heterojunction double-trench metal-oxide-semiconductor field effect transistor (MOSFET) (HDT-MOS) with the gate-controlled tunneling effect is proposed for the...
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Life-cycle assessment of batteries for peak demand reduction
December 2023
At present, a life-cycle assessment of energy storage systems (ESSs) is not widely available in the literature. Such an assessment is increasingly vital nowadays as ESS is recognized as one of the important...
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Boundedness and liveness enforcement for labeled Petri nets using transition priority
December 2023
This paper deals with the supervisory control problem of discrete event systems modeled by labeled Petri nets. The system is originally unbounded. First, the solvability of the problem is confirmed....
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