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  1. No Access

    Chapter

    Imperial Horse Policy and the Publication of Equine Veterinary Medicine Books in Ming China: A Case Study on Yuanheng Liaomaji

    As the successor of the Mongol Yuan Empire, the Ming Dynasty (1368–1644) continued to develop an extensive postal system in China in which horses played an important role. In order to support such a large-scal...

    Zhexin Xu in Medieval Animals on the Move (2021)

  2. No Access

    Article

    Understanding long-term variations in GPS differential code biases

    Precise estimation of satellite differential code biases (DCBs) plays a crucial role in precise ionospheric modeling, positioning, and timing. Due to the rank deficiency, a constraint or a datum is required in...

    Yan **ang, Zhexin Xu, Yang Gao, Wenxian Yu in GPS Solutions (2020)

  3. Article

    Open Access

    Improving aerial image transmission quality using trajectory-aided OLSR in flying ad hoc networks

    UAVs have been widely used in various applications. Auto coordination of multiple UAVs through AI or mission planning software can provide significant improvements in many applications, including battlefield r...

    Chen Hou, Zhexin Xu, Wen-Kang Jia in EURASIP Journal on Wireless Communications… (2020)

  4. No Access

    Chapter and Conference Paper

    A Cluster–on–Demand Algorithm with Load Balancing for VANET

    Cluster–on–Demand VANET clustering algorithm (CDVC) along with load balancing for urban is proposed. Urban vehicles are characterized by unpredictable moving direction. These challenges are solved by CDVC, wh...

    Yun Zheng, Yi Wu, Zhexin Xu, **ao Lin in Internet of Vehicles – Technologies and Services (2016)

  5. No Access

    Article

    Designing Delay Lines Based on the SD/DE Algorithm for Transmitted-Reference Ultra-Wideband Systems

    This paper studies the design problem of delay lines in Transmitted-Reference Ultra-Wideband (TR-UWB) systems based on a new evolutionary scheme named Step**-Dichotomy/Differential-Evolution (SD/DE) algorith...

    Zhexin Xu, Lin Wang, Guanrong Chen in Circuits, Systems, and Signal Processing (2011)