A5001124396- Guidance and Control Systems
- Distributed Control Multi-Agent Systems
- Advanced ceramic materials synthesis
- Military Defense Systems Analysis
- Nuclear Materials and Properties
- Titanium Alloys Microstructure and Properties
- Microstructure and Mechanical Properties of Steels
- Reinforcement Learning in Robotics
- Additive Manufacturing and 3D Printing Technologies
- Metallurgy and Material Forming
- Aluminum Alloys Composites Properties
- High Temperature Alloys and Creep
- Aluminum Alloy Microstructure Properties
Northwestern Polytechnical University
2013-2025
Chongqing University
2011-2015
This paper considers a target-defense game in an open area with one or two defenders as well intruder. The intruder endeavors to reach the boundary of island, while strive prevent that by capturing through contact. Islands, closed areas, restrict free movement defenders, since defenders—represented USVs—cannot traverse target directly. First, we are concerned barrier, which is winning zones, taking into account impact target. For initial states lying defenders’ zone, there exists strategy...
A cylindrical ingot was produced by means of centrifugal casting using 20 vol.% SiC p /Al composite melt. The melt which fabricated double stir-casting method, consisting three different sizes particles. composites were characterized optical microscope (OM), scanning electron (SEM), transmission (TEM), and X-ray diffraction (XRD) techniques. results showed that particles in the migrated towards outer periphery under force. High reinforcement content obtained a zone near ingot, volume...
Abstract This paper considers the problem of a defender agent to guard target area being attacked by hostile agent. There are two different agents‐intruder and here. The purpose is prevent intruder from approaching if possible, catch intruder. As guardian object defender, also obstructs its free movement. Therefore, new geometric method proposed solve problem. Firstly, winning zones constructed for agents using methods. When defender's initial position in zone, can capture zone intruder,...
The δ phase evolution and its effect on the austenite grain growth in solution treatment of superalloy GH4169 were investigated at temperatures 1233, 1253, 1273 1293 K holding time 30, 45 60 min. is dissolved transformed from short bars to fine or particles gradually with increasing temperature. affects morphology amount slightly. grows temperature time. It slowly ranging 1233 1373 K, but sharply K. phenomenon suggests that generates a pinning growth. kinetic analysis about was carried out...
Abstract In this study, we consider a two‐player pursuit‐evasion game in which an evader attempts to evade into circular region while pursuer along the boundary of aims at intercepting evader. The is considered possess higher speed than that pursuer, makes study different from existing ones. Both players are assumed have constant speeds and simple motions; is, they can change their moving directions instantaneously. sufficient conditions for win against with zero capture radius or positive...
The TC8 titanium alloy was isothermally compressed at 1133 K and 1213 in the (α+β) two phase region. microstructural evolution restoration mechanism α β phases were characterized by optical microscopy transmission electron microscopy. results show a significant effect of content on mechanism. grain refinement occurs both temperatures, but only higher temperature K. This difference is attributed to different dependence mechanisms phases. A increase volume fraction makes change from dynamic...