A5100434200- High voltage insulation and dielectric phenomena
- Power Transformer Diagnostics and Insulation
- Composite Structure Analysis and Optimization
- Thermal properties of materials
- Rock Mechanics and Modeling
- Diamond and Carbon-based Materials Research
- Graphene research and applications
- Hydraulic Fracturing and Reservoir Analysis
- Advanced Sensor and Energy Harvesting Materials
- Surface Modification and Superhydrophobicity
- Advanced Fiber Laser Technologies
- Structural Load-Bearing Analysis
- Lightning and Electromagnetic Phenomena
- Coal Properties and Utilization
- Electrospun Nanofibers in Biomedical Applications
- Phase Change Materials Research
- Thermal Radiation and Cooling Technologies
- Polymer Nanocomposite Synthesis and Irradiation
- MXene and MAX Phase Materials
- Cellular and Composite Structures
- Geotechnical Engineering and Underground Structures
- Photonic and Optical Devices
- Structural Analysis and Optimization
- Photonic Crystal and Fiber Optics
- 2D Materials and Applications
North University of China
2023-2024
Hefei University
2024
Nanchang University
2024
Shenzhen Technology University
2023
Wuhan University
2022
Chongqing University
2018-2022
University of Cambridge
2022
Jilin University
2021
Zhejiang University
2020
Rutgers Sexual and Reproductive Health and Rights
2018
Extraordinary superhydrophobic polycaprolactone (PCL) composite membranes with an alternated hierarchical micro–nano structure were designed by addition of SiO2 aerogel. The highest water contact angle (WCA) 166.8 ± 1.5° was obtained when aerogel content 0.5% (PCL/SiO2-a0.5) in the PCL membrane, which higher than other reported polymer-based membranes. lowered membrane's surface energy. triple curvature composed microspheres, nanospheres, and nanofibers produced on PCL/SiO2-a0.5 endowed...
Abstract Polymer‐based thermal interface materials (TIMs) with excellent conductivity and heat dissipation capabilities play a crucial role in addressing the issue of accumulation advanced integrated electronics. However, establishing improved surface interactions complete networks to enhance efficient phonon transfer remains significant challenge. To tackle this problem, modification ice‐templating techniques are commonly employed create robust crosslinks continuously conductive pathways....
Despite being discovered more than 20 years ago, nanofluids still cannot be used in the power industry. The fundamental reason is that nano-insulating oil has poor stability, and its electrical performance decreases under negative impulse voltage. We found C60 nanoparticles can maintain long-term stability insulating without surface modification. strong electronegativity photon absorption ability, which comprehensively improve of oil. This finding great significance for industrial...
The electronic band structures of ultra-wide gap CaF2 are investigated with both the hybrid functional and efficient generalized gradient approximation (GGA) + U scheme. scheme is in excellent agreement experiments, while introducing an on-site Coulomb interaction to F-2p orbitals also accurately reproduces experimental bandgap greatly improves previous theoretical results using advanced structure schemes. We apply GGA method study CaF2/Si metal/CaF2 interfaces. insulating interfaces a clear...
We prepared nano-C60 based insulating oil, which has the potential to overcome application barriers of nanomodified oil. find that oil an excellent stability. Its electrical performance increases by 17.9%, 9.3%, and 8.3% for AC positive/negative lightning impulse voltage, respectively. believe C60 molecules have a strong capacity absorb electrons can capture photons in streamer, may weaken photoionization streamer thereby improve
Statistical results have shown that the waveforms of impulses invading power transformers differ from those standard impulse voltage recommended by IEC Standard. However, effect such differences on modification nano-modified transformer oil has rarely been studied. The present work therefore experimentally investigated effects waveform parameters breakdown characteristics nano-TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> modified...
The rational design of metal contacts on transition dichalcogenides can significantly improve the performance 2D devices. We have previously shown that a Moire interface between n-type monolayer MoS2 and enhances stability physisorptive sites, thereby enabling weaker Fermi level pinning allowing easier variation Schottky barrier height at these interfaces. extend calculations to p-type ambipolar WSe2 in this work. analysis shows interfaces again pinning, while most metals chemisorptive sites...
Carbon nanodots (C-dots) with a uniform size of about 2 nm are synthesized via in situ pyrolysis n-propylamine that is confined the nanochannels zeolite Linde Type A (LTA). The as-synthesized C-dots@LTA composite shows nonlinear optical saturable absorption properties broad wavelength band and can be used as absorber (SA) to generate ultrafast pulsed fiber lasers. By inserting LTA single crystal hosting C-dots into laser cavity, mode-locked lasers long-term operation stability at...
The impulse voltage wave invading a transformer is not the double exponential (DEIW) specified by IEC but non‐standard waveform with oscillation attenuation characteristics, and this fact leads to doubts about scientificity optimality of insulation coordination. A key solution for issue establishment an equivalent relationship between measured DEIW. In study, test platform multiparameter was set up. Then, authors obtained 50% breakdown ( U ) oil‐impregnated paper (OIP) under bipolar...
Breakdown in dielectrics, the mechanism of which is still not yet fully revealed, exhibits very complicated test phenomena and characteristics. The breakdown voltage a dielectric believed to be related only properties but also waveform applied voltage. For most impulse decreases with increasing wavefront time. However, we found for oil-impregnated paper (OIP) used power transformers, time lightning impulses (at microsecond timescales) may lead significant increase In contrast, variation...
As one of the 1D nanomaterials, Se nanochains have been widely used in photoelectric devices, such as photodetectors, battery and optical sensors due to their excellent properties. Among them, ultrafast photonics has attracted much attention its wide applications; for instance, environmental monitoring, material processing, biomedical imaging, nonlinear generation, free‐space communication. Herein, are fabricated by trapping species circular channel AlPO 4 ‐5 (AFI) crystal, characteristics...
This investigation explores the erosion dynamics in sandy soils triggered by underground pipeline fractures, applying transparent soil technology for visualization. Through this approach, process within model was meticulously recorded using photography, enabling quantitative analysis of collapse pit dimensions over time. Results reveal that primarily manifests directly above fracture, varying significantly with hydraulic conditions. In scenarios devoid water flow pipeline, an increase depth...
Abstract With the rapid development of modern transportation systems, optimizing relationship between structure and performance to obtain natural rubber‐based nanocomposites with excellent comprehensive is still worth investigation. Herein, regulation flocculation potential through different flocculants selection on thermomechanical properties for carbon black/graphene oxide reinforced rubber (CB/GO/NR) were investigated based compression electric double layer theory. The results showed that...
Exploring high-κ gate dielectrics is crucial for the achievement of high-performance field-effect transistors (FETs). Here, we report synthesis a few-layer wide bandgap semiconductor gallium thiophosphate (GaPS4), which can be easily mechanically exfoliated from bulk material. The few-layered GaPS4 flakes exhibit relative dielectric constant approximately 5.3. Two-dimensional (2D) van der Waals heterostructure FETs utilizing atomically smooth as top-gate layer and MoS2 channel material were...