Jie Liu

Access selection and service placement in mobile edge computing networks

Linbo Zhai, XU Xiao-ming, Zhiquan Liu, Linfeng Wei et autres

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A High‐Efficiency Shared‐Aperture Dual‐Polarized Microstrip Antenna for L‐Band Remote Sensing UAVs

Jie Liu, Jiaxin Liu, Shaojie Zhao, Jie Li et autres

ABSTRACT Current unmanned aerial vehicle (UAV)‐based remote sensing systems for soil moisture detection face several challenges, including large antenna size, low efficiency, and measurement errors caused by non‐overlapping dual‐polarization coverage. To address these issues, this study proposes an efficient and compact L‐band …

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STAR-RIS-Assisted Computation offloading and resource allocation optimization for mobile IoV with NOMA-MEC

Linbo Zhai, Zhiquan Liu, Linfeng Wei, Xiaochuan Li et autres

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Exploring life skills, research adaptation, and team building among basic medical postgraduates

Qiqi Zhang, Xiaoqing Q Yuan, Ziyu Liu, Jie Liu et autres

Introduction: Under the background of "basic top-notch 2.0" plan, taking the graduate students of Xiangya School of Basic Medical Sciences, Central South University as an example, to explore their current situations in life, academics, scientific research, and team collaboration, thereby offering insights …

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Cryogenic low-noise amplifiers of low power dissipation for space terahertz astronomy

Jie Liu, Dong Liu, Kun Zhang, Ming Yao et autres

Abstract Cryogenic low-noise amplifiers (CLNAs) are of particular interest for applications such as radio astronomy and quantum information science. Here we report on the design and characterization of low-power-dissipation wideband CLNAs for a terahertz spectrometer onboard China’s Space Station Telescope (CSST). A …

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Computation bits maximization in multi-UAV-assisted-multi-vehicle edge computing system

Linbo Zhai, Meiyu Jin, Ping Zhao, Jiande Sun et autres

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High-Efficiency Dual-Polarized Microstrip Antenna for UAVs in the L-Band

Jianing Liu, Jie Liu, Qiang Wu

Current airborne microwave systems used for soil moisture detection are limited by their inability to achieve comprehensive real-time calibration, which consequently results in significant temperature-induced variations that affect detection accuracy. To address this challenge, the present study introduces the design of a …

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Design of a Novel Ceramic Dielectric Filter Based on Cross Coupling Technology

Yang Gao, Weichao Yang, Yunxiu Wang, Xiaotao Yao et autres

Given the dual requirements of miniaturization and high-frequency selectivity for filters in 5G communication systems, an innovative four-cavity ceramic dielectric waveguide filter with a dumbbell-shaped electrical coupling structure is introduced. A modular design method for the four-cavity ceramic filter is proposed, where …

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An Ultra-Wide Beam Circularly Polarized UHF Antenna for Search and Rescue Drones

Jie Liu, Qiang Wu, Jiawei Xu

An ultra-wide beam angle right-hand circularly polarized array antenna for UHF band is designed to improve the search and rescue coverage of emergency rescue UAVs effectively. The antenna is mainly composed of a radiating spiral arm board, a feed connection board and …

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A Soft Body Actuator Position Measurement Method Based on OpenCV Library

Qiang Cheng, Jie Liu, Ting Sun, Jingjing Xu et autres

The inherent deformability of soft body robots renders the conventional rigid measurement techniques inapplicable to the assessment of their structural integrity. Consequently, the investigation of appropriate measurement methodologies for soft body structures has emerged as a prominent area of research. This paper …

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YOLO_MIC3: Facial Keypoints Detection Algorithm for Aggregating Reduced-Dimensional MRI Images

Ting Guang Sun, Jingjing Xu, Jie Liu, Qiang Cheng et autres

Clinical diagnosis and treatment are highly dependent on medical images. However, the MRI reconstruction model of the human head is limited by insufficient resolution, blurred tissue contours, and spatial impurities, which makes it difficult to accurately locate the key points of the …

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Development and assessment of the health-related quality of life scale for children with hearing loss in China

Jie Liu, Yuxiao Wang, Jing Li, Daichao Wu et autres

BACKGROUND: Hearing loss significantly affects children's lives; however, the health-related quality of life (QoL) of children with this disability is not well measured. We sought to develop a reliable and valid measure of health-related QoL in children with hearing loss. METHODS: We …

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