Weiting Liu

Pulse signal-based sleep classification using multiple signal processing methods

Yu Zhan, Hongliang Lv, Bingpeng Zhan, Renpeng Dong et autres

Sleep plays a crucial role in physiological recovery, with different sleep stages exhibiting varying physiological characteristics. However, the complexity and diversity of physiological signals during sleep pose challenges to sleep scoring. Current methods for sleep stage classification are often costly and cumbersome. …

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Ice-resistant performance evaluation of a downward-pressure-induced pile foundation for cold-region wind turbines

Chenyan Zhou, Ling Chen, Weiting Liu, Qun Yin et autres

Sea-ice hazards in cold-region sea areas pose significant challenges to the structural safety of offshore wind turbines. Although traditional ice-resistant cone pile foundations can effectively reduce ice loads, their application to large-diameter piles involves a pronounced load trade-off: reductions in peak ice …

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Identification of ice loads on ship structure using a hybrid regularization strategy

Chenyan Zhou, Ling Chen, XiaoQuan Li, Weiting Liu et autres

Accurately identifying ice loads acting on a ship is crucial for ensuring the structural safety of polar vessels. To mitigate the severe ill-posedness caused by limited measurement data and high sensitivity to noise, regularization techniques are widely used in ice load identification. …

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A NEW METHOD AND A COMPOSITE SENSING CUFF AIMS AT ESTIMATE PERSONALIZED PARAMETER AND IMPROVE THE ACCURACY FOR OSCILLOGRAPHY BLOOD PRESSURE

Mei‐Yan Xu, Yuan Jiang, D W Wu, Binpeng Zhan et autres

Objective: This work focuses on development a composite sensing cuff by introducing PVDF sensing module to improve the quality of oscillating signals, which aims at establishing personalized parameter estimation and blood pressure measurement methods.Design and method: Oscillography is widely used in general …

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Pulse Sigal-Based Sleep Classification Using Multiple Signal Processing Methods

Yu Zhan, Hongliang Lv, Bingpeng Zhan, Renpeng Dong et autres

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RedOne: Revealing Domain-specific LLM Post-Training in Social Networking Services

Fei Zhao, Yue Wang, Ziyan Liu, Jian Huang et autres

As a primary medium for modern information dissemination, social networking services (SNS) have experienced rapid growth, which has proposed significant challenges for platform content management and interaction quality improvement. Recently, the development of large language models (LLMs) has offered potential solutions but …

Investigation on the oscillatory dynamics of liquid slugs under pressure fluctuations in a capillary tube

Weiting Liu, J. Q. Li, Yingnan Shen, Rui Bo Su et autres

Liquid slug maldistribution can deteriorate mass and heat transfer efficiency of microfluidic slug flow. Among the dominant factors, pressure fluctuations have significant influence on uniformity of slug length and stability of the meniscus morphology. This paper experimentally investigated the hydrodynamic characteristics of …

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Closed-loop control for harmonic current suppression in DTP-PMSM based on QRESO

Tingting Sun, Weiting Liu, Haifeng Wei, Jia Cui

In recent years, great progress has been made in MPC of DTP-PMSM. In order to solve the computational burden caused by a large number of voltage vectors, virtual voltage vector control is introduced. However, this method eliminates the voltage vector used to …

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Ultra-High Frequency and Small Aperture Size Circular Array Based on Piezoelectric Polymer for Intravascular Ultrasound Imaging

Zhiqing Zhang, Guoxiang Zhang, Weiting Liu, Kanjie Du et autres

This work presents a novel approach for fabricating circular arrays for intravascular ultrasound (IVUS) imaging, successfully achieving a 32-element, 55 MHz transducer with a compact 1.5 mm aperture size, based on piezoelectric polymer. The innovative use of PVDF-TrFE (polyvinylidene fluoride-trifluoroethylene) as the …

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Synchronous Gesture Recognition and Arm Joint Angle Monitoring for Human‐Machine Interaction Using Multiple Flexible Ultrasonic Patches

Yejia Wu, Mengjiao Qu, Jiaquan Xu, Weiting Liu et autres

Abstract Wearable ultrasonic devices can non‐invasively monitor muscle activities for prosthetic hand control and human‐machine interaction (HMI). However, most existing ultrasonic probes for deep muscle tissue monitoring are designed with bulky structures, limiting their wearability for long‐term continuous monitoring. Additionally, current research …

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Digital twin-based optimization of AGV scheduling under energy constraints in plant factories

Dai Min, Yutian Shen, Weiting Liu, Mingyang Lu

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Synergy of structural contact and energy-level improvement on CuSCN/Au interface with cobalt(II) thiocyanate for achieving efficient and stable CuSCN-based perovskite solar cells

Junzhe Han, Weiting Liu, Wenwen Zheng, Xueqi Zhang et autres

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