Autonomous maneuvering decisions of Deck Spindles unmanned aerial vehicle (UAV) in short-range air combat remain a challenging research topic, and a decision method based on an improved deep deterministic policy gradient (DDPG) is proposed.First, the problem model is improved from the perspective of energy–air combat, and a decision model wi
In the construction and operation stage of shield tunnel, mastering and clarifying the mechanical characteristics of the overall structure is essential for ensuring shield tunnel safety.In this paper, the shell-spring model is established by ABAQUS finite element software for the ultra-high water pressure submarine shield tunnel.The mechanical beha
compared with alcohol (p < 0.05) but was not significantly different from normal saline solution (p = 0.26).Conclusion: Extraoral application of LLLT demonstrated Endcap penetration efficacy through the buccal tissue with both contact and non-contact skin (
Since last decades, nanocellulose has gained much attention in nanocomposite foams owing to high stiffness and strength, renewability, sustainability and biodegradability.Nanocellulose is hydrophilic, and could be easily dispersed in hydrophilic polymer Collectors matrices; however, there are challenges to introduce nanocellulose in less hydrophili
Knowledge regarding the honey bee pathogens borne by invasive Avena Sativa bee pests remains scarce.This investigation aimed to assess the presence in Aethina tumida (small hive beetle, SHB) adults of honey bee pathogens belonging to the following groups: (i) bacteria (Paenibacillus larvae and Melissococcus plutonius), (ii) trypanosomatids (Lotmari