Yuqing Chen

Residual-Based Fractional-Order Model Predictive Control for Automated Co-Administration of Anesthetic Drugs

Shiquan Zhao, Yuqing Chen, Huixuan Fu, Isabela Birs et autres

Closed-loop regulation of the bispectral index (BIS) during propofol–remifentanil co-administration is challenging because of nonlinear drug interactions, patient variability, model uncertainty, external disturbances, and infusion constraints. This paper proposes a residual-based fractional-order model predictive control (RB-FOMPC) method within the Extended Prediction Self-Adaptive …

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Toward Sustainable Education: Generative AI-Powered Argument Mining in Student Writing

Yupei Ren, Ning Zhang, Xiaoyu Li, Yadong Zhang et autres

As critical elements in argumentative writing, argument components and strategies significantly influence argument quality. However, the existing research lacks an in-depth exploration of how students construct and utilize these elements in argumentative writing. This study first evaluates the performance of leading large …

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A Conformation-Dependent AIE-TADF Fluorophor Based on a Phenothiazine-Diphenyl Sulfone Derivative for Tumor Cell Growth Monitoring

Yuqing Chen, Wentao Yang, Xiang Sun, Wenbing Yu et autres

An organic compound composed of a phenothiazine (PTZ) electron donor moiety and 4-fluoro diphenyl sulfone (FDPS) electron acceptor unit, PTZ-FDPS, which exhibited simultaneously polymorphism, aggregation-induced emission, thermally activated delayed fluorescence (TADF), and mechanochromic luminescence (MCL), was reported. PTZ-FDPS formed two different aggregates: …

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Numerical simulation of heat dissipation characteristics in PWR high-pressure coolant pipes during cold shutdown

Wei Wang, Yiming Luo, Yuqing Chen, Shanshan Liu

Under cold shutdown conditions, the heat dissipation performance of the high-pressure coolant pipeline critically impacts pressurized water reactor (PWR) safety by governing residual heat removal efficiency. To quantify key drivers of thermal behavior during stagnant coolant operation, a high-fidelity thermal-hydraulic model is …

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URSD: A uncertainty-resistant semi-supervised approach for object detection

Yuqing Chen, Fei Jiang, Dandan Zhu

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A Novel Student Engagement Analysis of Real Classroom Teaching Using Unified Body Orientation Estimation

Yuqing Chen, Jiawen Li, Yixin Liu, Fei Jiang

Student engagement analysis is closely linked with learning outcomes, and its precise identification paves the way for targeted instruction and personalized learning. Current student engagement methods, reliant on either head pose estimation with facial landmarks or eye-trackers, are hardly generalized to authentic …

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Recovery of industrial waste heat for district heating: A complementary heating method and stakeholder coordination

Jiayu Li, Peng Liu, Hao Zhou, Yuqing Chen et autres

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Educational Evaluation with MLLMs: Framework, Dataset, and Comprehensive Assessment

Yuqing Chen, Yixin Li, Yupei Ren, Yixin Liu et autres

With the rapid development of Multimodal Large Language Models (MLLMs) in education, their applications have mainly focused on content generation tasks such as text writing and courseware production. However, automated assessment of non-exam learning outcomes remains underexplored. This study shifts the application …

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Limited-View Compensation in Photoacoustic Computed Tomography Using a Generative Mode

Youwei Yang, Yuqing Chen, Hongshen Chen, Mian Chen et autres

Photoacoustic computed tomography (PACT) is a multimodal imaging technique that combines the advantages of optical resolution and ultrasonic imaging depth, offering unique strengths in functional and molecular imaging. However, the reconstruction quality is often compromised by restricted field-of-view (FOV) acquisition, which is …

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Research and Application of Integrated Oil Exchange Device for Natural Ester Retrofilled Transformer

Qingdan Huang, Haoyong Song, Yida Li, Yuqing Chen et autres

Natural ester insulating liquid has gradually become an alternative liquid for mineral oil and is widely used in power transformers due to its high fire point and environmental friendliness. Traditional retrofilling needs to complete the removal of old oil, flushing and retrofilling …

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Mining the Patterns of Teachers’ Nonverbal Behavior: Automated Recognition and Systematic Exploration

Yuqing Chen, Jiawen Li, Yixin Liu, Fei Jiang et autres

While the majority of scholarly investigations concerning pedagogical behavior predominantly underscore verbal communication, the significance of nonverbal behavior remains inadequately examined. This research endeavors to propose a theoretical framework pertaining to educators’ nonverbal communication and introduces two artificial intelligence-based recognition models: GestureNet, …

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Human-in-the-Loop Tracking Control for Nonlinear Agricultural Multi-Agent Systems: A Fully Distributed Fuzzy Adaptive Method

Yuqing Chen, Zhengcai Li

This paper proposes a novel human-in-the-loop tracking control framework for nonlinear agricultural multiagent systems (MASs) based on a fully distributed fuzzy adaptive strategy. Unlike conventional methods, the developed approach integrates an active leader mechanism to enable real-time human intervention, allowing operators to …

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