Xuewen Liu

Sep 12, 2024 | mdpi.com | Ping Yao |Xuewen Liu

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

Oct 10, 2023 | mdpi.com | Yuanlong Li |Shang Gao |Xuewen Liu |Peiliang Zuo

3.1. Selection of Supplementary Inspection Points We have noticed that the density of patrol points can greatly affect the quality of drone inspections on highways, as (1) the highway management department does not recommend drones to fly directly over highways, but rather over both sides of the road to prevent drones from falling to the ground and posing risks to the operation of highways; (2) if the drone’s patrol points are too sparse, the drone’s straight-line flight between points will...

Jul 12, 2023 | mdpi.com | Yuanlong Li |Yiyang Wang |Xuewen Liu |Peiliang Zuo

Abstract:Internet of Things (IoT) technology has permeated into all aspects of today’s society and is playing an increasingly important role. Identity authentication is crucial for IoT devices to access the network, because the open wireless transmission environment of the IoT may suffer from various forms of network attacks. The asymmetry in the comprehensive capabilities of gateways and terminals in the IoT poses significant challenges to reliability and security.

Jun 9, 2023 | link.aps.org | Yu Xin Liu |Xuewen Liu |Bin Zhu

Abstract The early kinetic decoupling (eKD) effect is an inevitable ingredient in calculating the relic density of dark matter (DM) for various well-motivated scenarios. It appears naturally in forbidden dark matter annihilation, the main focus of this work, which contains fermionic DM and a light singlet scalar that connects the DM and standard model (SM) leptons.