A5045732721- Advanced materials and composites
- Advanced ceramic materials synthesis
- Advanced machining processes and optimization
- Drilling and Well Engineering
- Advanced Surface Polishing Techniques
- Powder Metallurgy Techniques and Materials
- Advanced Machining and Optimization Techniques
- Opportunistic and Delay-Tolerant Networks
- Tunneling and Rock Mechanics
- Energy Harvesting in Wireless Networks
- Microstructure and mechanical properties
- Electrical Fault Detection and Protection
- Power Systems and Technologies
- Indoor and Outdoor Localization Technologies
- Injection Molding Process and Properties
- Magnetic Properties and Applications
- Metallurgy and Material Forming
- Vacuum and Plasma Arcs
- Power Line Inspection Robots
- Magnetic Properties of Alloys
- Advanced Measurement and Metrology Techniques
- Advanced Wireless Network Optimization
- Chinese history and philosophy
- High-Voltage Power Transmission Systems
- Electrical Contact Performance and Analysis
China University of Geosciences (Beijing)
2024
Ministry of Natural Resources
2024
Huazhong University of Science and Technology
2009-2022
Southwest Wisconsin Technical College
2020
East China Normal University
2018
Huaihua University
2011-2014
Huangshi Central Hospital
2011
North Carolina State University
2001
The lightweight protocols and low-power radio technologies open up many opportunities to facilitate Internet-of-Things (IoT) into our daily life, while their minimalist design also makes IoT devices vulnerable active attacks due the lack of sophisticated security protocols. Recent advances advocate use an antenna array extract fine-grained physical-layer signatures mitigate these attacks. However, it adds burdens in terms energy consumption hardware cost that cannot afford. To overcome this...
Summary Exploiting geothermal resources such as hot dry rocks (HDRs) requires directional drilling technology. Measurement-while-drilling (MWD) technology plays a crucial role in measurement. However, its high temperature and environment limit downhole measurement instruments application. For this research, we designed an MWD system with mechanical gravity tool face, the fully structure was used to overcome high-temperature constraints. The bias stabilization platform, face coding method,...
The through-flow experiment in the simulated state of earth fault various alloy materials were done, variable parameters resistivity obtained. In paper,the characteristics and its variational causes analyzed. At same time, choice principle resistance material, which can be used Low grounding resistor, is presented. research results are useful for design resistor.
During the operation of drill string, it displays a degree flexibility. Simultaneously, its dynamic properties, influenced by complex stress conditions, manifest nonlinearity and uncertainty. A comprehensive investigation into dynamics flexible strings is imperative for deep well drilling. This paper presents model that simulates random interactions between string borehole wall, simplifying actual using analogous principles. Dynamic simulation software utilized analysis, an indoor...
Handover optimization is an important task for the load balancing and mobility robustness in cellular networks. However, cells a network often overlap present strong interactions with nearby neighborhood. This renders handover challenging problem. In this paper, we propose novel graph convolutional neural to capture complex interaction between overlapping cells. With model, further develop contextual bandit solution optimize efficiency of Practical challenges derived from real-world...
Abstract Results of applying the wire Electrical Discharge Machining (EDM) process to generate precise cylindrical forms on hard, difficult-to-machine materials are presented. The design an underwater rotary spindle is first introduced. added a conventional two-axis EDM machine enable generation free-form geometry. Mathematical models for material removal rate and surface finish in workpiece derived. Experiments conducted 2D brass carbide work-materials. Comparing same work-material, higher...
In this study, we have a experimental research on properties of materials grounding resistor. Experiment test the resistor in state analog ground fault been done, performance parameters mechanics, thermal and electrical alloy with different kinds specification got. The its character grasped by analysis processing. results an important significance material selection structure design low resistance
According to the structure of grounding resistor, flow-current experiments alloy materials which have different performance and specification been done in condition simulation fault. Based on experiments, models temperature field constructed; distribution characteristics transient optimization Grounding Resistor studied discussed by models. The research results a great engineering application value performance, choice materials, cost saving improvement design efficiency resistor.
"Between Locality and Nation: Literati in Wenzhou Prefecture the Late Qing Local Transformation of Knowledge." Journal Modern Chinese History, 12(2), pp. 299–300
The bulk Cu billets with ultrafine-grained microstructure were successfully processed from full-annealed coarse grained oxygen-free high conductivity (OFHC) by the cyclic extrusion and closed compression (CECC), subsequently annealed at different temperatures. evolution of mechanical properties was systematically studied. results show that effective strain per CECC process is ε=2.77, further annealing treatment, a high-efficiency grain refinement realized. After two cycles 350 °C for 1 h,...