A5101557192- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Metamaterials and Metasurfaces Applications
- Wireless Power Transfer Systems
- Energy Harvesting in Wireless Networks
- Electromagnetic Scattering and Analysis
- Antenna Design and Optimization
- Metallurgy and Material Forming
- Microstructure and Mechanical Properties of Steels
- Microwave Engineering and Waveguides
- Electromagnetic wave absorption materials
- Advanced DC-DC Converters
- Microwave Imaging and Scattering Analysis
- IoT-based Smart Home Systems
- Wireless Networks and Protocols
- Opportunistic and Delay-Tolerant Networks
- Optical Coatings and Gratings
- High Temperature Alloys and Creep
- Context-Aware Activity Recognition Systems
- Hybrid Renewable Energy Systems
- Laser-induced spectroscopy and plasma
- Electromagnetic Simulation and Numerical Methods
- Wireless Communication Networks Research
- Advanced Materials and Mechanics
- Cognitive Radio Networks and Spectrum Sensing
Northwestern Polytechnical University
2016-2025
University of Electronic Science and Technology of China
2021-2024
Shenyang University of Technology
2024
University of Science and Technology Beijing
2024
University of Massachusetts Lowell
2024
Chang'an University
2024
Ministry of Water Resources of the People's Republic of China
2024
Nanjing Tech University
2023-2024
Hebei Normal University
2024
Huazhong University of Science and Technology
2023
The effect of scanning strategy on the microstructure and properties GH3536 Ni-based superalloy prepared by Laser Powder Bed Fusion was investigated, for purpose building high quality hydrocyclone part. results show that strength Z67° (a zone with 67° hatch angle strategy) specimen is highest among four strategies (0°, 67°, 90°and Z67°), yield tensile 681 MPa 837 MPa, respectively. Selective orientation crystals occurs during forming process because longitudinal section exhibits a texture in...
Evacuation of occupants in high-rise buildings is one the most important tasks when building subjected to a significant level fire threat. Since mechanism spread too complicated for trapped people determine evacuation route, real-time route planning method needed rescue and safety management. In this paper, an integrated fires proposed. This composed data acquisition, risk distribution calculation, formulation. The acquisition process achieved by using sensor system wireless transmission...
Pneumatic soft robots are of great interest in varieties potential applications due to their unique capabilities compared with rigid structures. As a part the robotic system, pneumatic system plays very important role as all motion performance is ultimately related pressure control air chambers. With increasing flexibility and complexity tasks, diverse driven by positive, negative, or even hybrid developed, this comes higher requirements precision. In study, we aim propose simplified design...
The design of metamaterial absorbers (MMAs) using deep learning (DL) models typically involves the construction a large dataset through time-consuming full-wave simulations (FSs). In this letter, an efficient shrinking method is proposed that employs both electromagnetic (EM) theory and DL to enhance efficiency. impact each MMA on training model estimated equivalent circuit (ECM) by analyzing gradients parameters with respect training. Impact sampling then used construct smaller while still...
This study investigates the hot deformation behavior of GH99 alloy for hypersonic missile airfoils at 1020 °C-1170 °C and 0.001 s-1-1 s-1 by single-pass compression experiments. Based on establishment constitutive equation, thermal processing map, dynamic recrystallization kinetic model, it elucidates influence second phase strengthening (DRX). It determines optimal parameters alloy. Moreover, through designing different multi-pass experiments, we investigated relaxation characteristics...
In this letter, a shifted double-sided frequency selective surface (FSS) with miniaturized unit cells is proposed to achieve superior performance in angular insensitivity. Two identical FSS screens mounted on both sides of thin substrate have lateral displacement relative each other. We shed light into effect shifting by investigating current and field distributions, present the operating principles along equivalent circuit model. The whole structure has lower profile (a thickness 0.001λ,...
In this paper, we introduce and study parallel-plate waveguides formed by two penetrable metasurfaces having arbitrary isotropic sheet impedances. We investigate guided modes of structure derive the corresponding dispersion relations. The conditions under which transverse magnetic electric can exist are discussed, different scenarios including lossless (reactive) metasurfaces, gain-and-loss sheets extreme cases general consideration. Resonant non-resonant dispersive investigated. Our...
In order to continuously power movable sensors, we present an autotracking continuous-wave time reversal (TR) wireless transfer (ACTR-WPT) system of a novel low-profile planar transmitter. The new transmitter is designed with radio-frequency (RF)–channel cascaded structure, which couples only little energy the amplified feeding signal each radiating element following one. Such RF-channel makes decrease or increase number elements quite flexible. transmitting circuits are highly integrated...
Abstract With the rapid development of high‐power electronic instruments and communication technology, efficient electromagnetic shielding materials with strong absorption waves low reflection characteristics have become focus world's attention. This study designs synthesizes N‐doped carbon‐coated hollow Fe 3 O 4 nanospheres (Fe @NC) by spraying Ag nanowires (AgNWs) on textiles as conductive networks. Because high permeability structure @NC, wave goes through a unique process “absorption,...
Abstract In this article, we present a method for reducing radar cross‐section (RCS) of patch antenna in two frequency bands. This is based on the absorbing metamaterial loaded around exciting source. The composed double‐square‐loop structure inserted with resistors, which can absorb incident wave at RCS characteristic proposed investigated by numerical simulation and measurement. Simulated result shows that obviously reduced about 8 dBsm 5.8 GHz within operating 9 out working band, compared...
Abstract A novel low‐radar cross section (RCS) microstrip antenna with radiation performance and volume maintained is proposed in this paper. Different from other RCS reduction methods, the applies shaping method on frequency selective surface (FSS) ground plate to achieve further reduction. In order obtain effect of subtracting square slots, an normal FSS designed as reference antenna. The modified slotted shows more significant compared range 4 7.5 GHz, maximum 14.62 dBsm at 4.22 GHz. And...
To break through the limitation of harmonic loss on transmission bandwidth, a novel frequency-selective rasorber (FSR) for wideband is present in this article. The FSR composed two subsets: an absorption-transmission (A-T) and transmission-absorption (T-A) rasorber. A-T generates lower absorption band with suppression, resulting multioctave low insertion (IL) window. suppression principle resistive sheet described analyzed detail, corresponding equivalent circuit model developed to further...
In large-scale industrial and commercial energy storage systems, as well ground power station the trend is to adopt large-capacity battery cells reduce system construction costs. It essential screen consistency of during initial design phase. conventional clusters utilize multiple batteries connected in series, which can lead differential attenuation over time inconsistent state charge (SOC) among batteries. The “barrel effect” diminishes effective capacity system. To mitigate this issue, a...
We propose and analyse metasurface-bound invisible (non-scattering) partially open cavities where the inside field distribution can be engineered. It is demonstrated both theoretically experimentally that exhibit unidirectional invisibility at operating frequency with enhanced or suppressed different positions cavity volume. Several examples of applications designed are proposed analyzed, in particular, cloaking sensors obstacles, enhancement emission, "invisible waveguides". The...