- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Millimeter-Wave Propagation and Modeling
- Magnetic Bearings and Levitation Dynamics
- Internet of Things and Social Network Interactions
- Guidance and Control Systems
- Engineering Education and Curriculum Development
- Wireless Body Area Networks
- Aluminum Alloys Composites Properties
- Drilling and Well Engineering
- Experimental Learning in Engineering
- Control and Dynamics of Mobile Robots
- Coal Combustion and Slurry Processing
- Adaptive Control of Nonlinear Systems
- Tunneling and Rock Mechanics
- Tribology and Lubrication Engineering
- Grouting, Rheology, and Soil Mechanics
- Electromagnetic wave absorption materials
- Ultrasound and Cavitation Phenomena
- Gear and Bearing Dynamics Analysis
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Optimization
- Innovations in Concrete and Construction Materials
Tangshan College
2023-2024
Beijing Institute of Technology
2023-2024
Ningbo Institute of Industrial Technology
2023
Chinese Academy of Sciences
2023
China Coal Technology and Engineering Group Corp (China)
2019
Taiyuan University of Technology
2017
Central South University
2013
Beijing Union University
2011
To improve electromagnetic wave (EMW) absorption performance, a novel nano-laminated Dy3Si2C2 coating was successfully in situ coated on the surface of SiC whisker (SiCw/Dy3Si2C2) using molten salt approach. A labyrinthine three-dimensional (3D) net constructed by one-dimensional (1D) SiCw with two-dimensional (2D) layer thickness ~100 nm, which significantly improved EMW properties SiCw. Compared to pure minimum reflection loss (RLmin) value -10.64 dB and effective bandwidth (EAB) 1.04 GHz...
A single-layer dual-polarized end-fire phased array antenna is proposed for 5G millimeter-wave (mm-wave) mobile terminals. Unlike most current implementations based on multi-layer processes, only a single substrate layer with profile of 0.14 <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">λ</i> <sub xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> required in this work. Substrate integrated waveguides and tapered grounded coplanar are...
In view of the fact that theory fracture grouting in deeply buried rock strata seriously lags behind engineering practices, a circular fracturing diffusion model single was established by considering numerous influencing factors strata, such as crustal stress characteristics, mechanical properties, and time‐varying characteristics serous viscosity. By setting intensity factor K I equal to material toughness IC at tip criterion for fracturing, equation derived verified experimentally....
With the rapid advancement of 5G mobile communication, mm-wave band has become a focus technological innovation for terminal antennas. Our group is dedicated to overcoming technical problems in design antennas, particularly terms small ground clearance, wide bandwidth, single layer and integrated package. Through systemic research exploration on implementation end-fire dual polarization, series high-performance antenna solutions have been developed. These works are categorized into two...
The influence of nonlinear impact behavior partial failure collision rolling bearing is studied when the pitfall occurs in inner ring. piecewise non-smooth experiment model three-degree-of-freedom system with fault ring established, and method used to further reveal bifurcations chaos through establishing Poincaré mapping on plane. behaviors are vibration force increasing, frequency determined. signal spectrum characteristics analyzed changing quality mass <mml:math...
Abstract This paper presents an integrated guidance and control (IGC) design method for unmanned aerial vehicle with static stability which is described by a nonlinear six-degree-of-freedom (6-DOF) model. The model linearized using small disturbance linearization. dynamic characteristics of pitching mode, rolling mode Dutch are obtained analysing the Furthermore, IGC procedure also proposed in conjunction proportional–integral–derivative (PID) fuzzy method. A PID controller applied loop...