A5101571564- Advanced Antenna and Metasurface Technologies
- Electromagnetic wave absorption materials
- Metamaterials and Metasurfaces Applications
- Antenna Design and Analysis
- Distributed and Parallel Computing Systems
- Cellular and Composite Structures
- Power Systems and Technologies
- Sirtuins and Resveratrol in Medicine
- Advanced Computational Techniques and Applications
- Advanced Materials and Mechanics
- Dielectric materials and actuators
- Adhesion, Friction, and Surface Interactions
- Semantic Web and Ontologies
- Parkinson's Disease Mechanisms and Treatments
- Cardiac Health and Mental Health
- Apelin-related biomedical research
- Biochemical and biochemical processes
- Composite Material Mechanics
- Fluid Dynamics and Heat Transfer
- Polymer composites and self-healing
- ZnO doping and properties
- Autophagy in Disease and Therapy
- Nanomaterials and Printing Technologies
- Concrete Corrosion and Durability
- Nerve injury and regeneration
Beijing Institute of Technology
2016-2024
Zunyi Medical University
2019-2021
National Center for Nanoscience and Technology
2015-2017
Beijing Advanced Sciences and Innovation Center
2017
Center for Excellence in Education
2017
Center for NanoScience
2017
Beihang University
2005-2008
Nanjing University
2000
Lightweight, flexible and anisotropic porous multiwalled carbon nanotube (MWCNT)/water‐borne polyurethane (WPU) composites are assembled by a facile freeze‐drying method. The contain extremely wide range of MWCNT mass ratios show giant electromagnetic interference (EMI) shielding effectiveness (SE) which exceeds 50 or 20 dB in the X‐band while density is merely 126 mg cm −3 , respectively. relevant specific SE up to 1148 3 g −1 greater than those other materials ever reported. ultrahigh EMI...
This paper reports an easy method to prepare a transparent superhydrophobic coating which shows robust resistance oil contamination, knife-scratch, sandpaper abrasion and strong acid/base attack.
Multiwalled carbon nanotube/polymer composites with aligned and isotropic micropores are constructed by a facile ice-templated freeze-drying method in wide density range, controllable types contents of the nanoscale building blocks, order to tune shielding performance together considerable mechanical electrical properties. Under mutual promotion frame porous structure, lightweight high-performance is achieved: 2.3 mm thick sample can reach 46.7 21.7 dB microwave X-band while merely 32.3 9.0...
Ultralight and highly elastic reduced graphene oxide (RGO)/lignin-derived carbon (LDC) composite aerogels with aligned micron-sized pores cell walls are prepared using a facile freeze-drying method. The presence of small fraction LDC in the enhances interfacial polarization effect while almost maintaining amount charge carriers conductivity walls, greatly boosting wave absorption capability walls. RGO/LDC also show greater number large better integrity than RGO aerogels, further improving...
Flexible waterborne polyurethane (WPU)/silver nanowire (AgNW) nanocomposites with unidirectionally aligned micrometer-sized pores are fabricated using a facile freeze-drying process, and their dimensions, densities, AgNW contents easily controllable. The high-aspect-ratio AgNWs well-dispersed in the nanocomposite cell walls, giving good compression strength excellent electrical conductivity even at very low densities. large mismatch between WPU also induces substantial interfacial...
Due to substantial development of electronics and telecommunication techniques, materials with electromagnetic interference (EMI) shielding performance are significant in alleviating the impacts induced from a remarkable variety devices. In work, we propose novel sandwich structures for manipulating EM wave transport, which holds unique EMI features frequency selectivity. By employing electrical magnetic loss spacers, resultant endowed tunable performance, showing improvements overall...
Ultra-broad-band electromagnetic absorption materials and structures are increasingly attractive for their critical role in competing with the advanced broad-band detection systems. Mechanically soft weak wax-based composites known to be insufficient serve practical applications. To break through such barriers, here we developed an innovative strategy enable robust repairable meta-structures by employing a three-dimensional (3D) printed polymeric patterned shell. Because of integrated merits...
Abstract Broadband microwave absorption is essential on the realms of electromagnetic compatibility and protection in civil application scenarios. However, coordination material structure difficult without proper iterative design between resulting insurmountable drawbacks traditional medium operating under high temperature erosion. Herein, SiC metastructure manufactured bulk by stereolithographic 3D printing. The dielectric loss tangent sintered body over 0.5 up to 1.5 at most showing good...
With the advent of 5G and future trends for communication systems moving to millimeter wave (MMW) higher frequencies, antennas will be required have high gain, wide bandwidth, low losses. 3D printing realizes structures by sequential stacking layer-by-layer, which enables manufacturing with arbitrary shapes in a cheaper, faster, flexible manner. This study provides review current state-of-the-art printed different frequencies. First, an overview technology is presented. A huge number...
Smart materials and structures with tunable electromagnetic (EM) properties are highly demanded for active environmental sensitive systems. As polar molecules in the environment, this work, water ice utilized as wetting freezing conditions to manipulate response behaviors a graphene-based composite material, aiming achieve smart weather-manipulated EM metamaterial. Owing introduced phase self-assembled porous attenuating networks, energy consumption of waves is significantly altered via...
A resistive metasurface featured by the Rossler chaos reaction-diffusion system patterns is proposed and realized in a wideband electromagnetic absorber. The surface consists of units with both random shapes dimensions. Simulation results show absorption phenomenon, correlation function analysis indicates new wave-absorbing mode can be generated when edges matches geometrical size units. Experimental indicate unconventional bandwidth ratio reflectivity lower than –10, –15, –19 dB reaches...
Over the past 200 years, Parkinson's disease (PD) has remained an insurmountable challenge. Despite existence of numerous therapeutic drugs, there are still not enough treatments in face complex pathogenesis PD. Therefore, search for more effective drugs PD extremely important practical significance. Procyanidin (PC), widely found plants such as grapes, is a bioflavonoid antioxidant with special molecular structure that can effectively remove free radicals human body. To explore its possible...
Since carbon-based structures of various dimensions, including one-dimensional (1D) carbon nanotubes, two-dimensional (2D) graphene and three-dimensional (3D) foams, have attracted significant attention as microwave absorption fillers, we present an exceptional hetero-junction filler with a 1D–2D–1D feature, achieved by manipulating 2D into 1D fibers in the fiber-extruding process under electric field. The as-fabricated structural fillers exhibited much-improved dielectric properties...
The realization of an ideal invisible cloak implementing transformation optics is still missing. An impedance matching concept implanted into to generate (IMC) shell. In this work, it proved that structure reduces the cloaking structure's disturbance a propagating electromagnetic field and improves its invisibility measured by scattering intensity. Such cylindrical IMC shell designed, fabricated with proposed rounded rectangular split-ring-resonators (RR-SRRs), experimental measurements show...
It was difficult to solve the conflict of integrating lightweight property, mechanical resistance, and broadband microwave absorption into one composite structure. Herein, glass fiber (GF)/carbon (CF) reinforced multifunctional metastructure with resistance designed optimized through genetic algorithms fabricated autoclave-vacuum bag technique. The proposed GF/CF (GF/CFRM) covered -10 dB effective bandwidth in full frequency band 2-18 GHz average reflectivity -16.7 dB. electromagnetic theory...