A5101733137- High voltage insulation and dielectric phenomena
- Advanced machining processes and optimization
- Lightning and Electromagnetic Phenomena
- Plasma Applications and Diagnostics
- Advanced Measurement and Metrology Techniques
- Power Systems Fault Detection
- Plasma Diagnostics and Applications
- Graphene research and applications
- Conducting polymers and applications
- Electrical Fault Detection and Protection
- Aerosol Filtration and Electrostatic Precipitation
- Luminescence and Fluorescent Materials
- Carbon Nanotubes in Composites
- Crystallization and Solubility Studies
- Advanced Numerical Analysis Techniques
- X-ray Diffraction in Crystallography
- Organic Electronics and Photovoltaics
- Magnetic properties of thin films
- Semiconductor materials and devices
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Pulsed Power Technology Applications
- Power Systems and Technologies
- Physics of Superconductivity and Magnetism
- Supramolecular Self-Assembly in Materials
Harbin University of Science and Technology
2013-2025
Gannan Normal University
2024
Northeast Normal University
2024
Tsinghua University
2013-2023
Hebei University of Technology
2021
Guangdong Ocean University
2021
Kyushu University
2020
Harbin Electric Corporation (China)
2009-2016
Shanghai Institute of Microsystem and Information Technology
1991-2014
Chinese Academy of Sciences
2000-2014
We analyzed the protective ability of chemical vapor deposition (CVD) graphene domains against corrosion Cu surfaces. Fresh various shapes were ideal corrosion-inhibiting layers. However, obvious was found within exposed to air for over a week. Our work demonstrates that opportunities CVD provided by wrinkles but not others, such as grain boundaries and domain boundaries, which are always believed primary factor inferior quality at present.
A set of water-soluble dendronized polyfluorenes bearing peripheral charged amino groups were synthesized by two steps: (1) Suzuki polycondensation dendritic macromonomers carrying Boc-protected with 1,4-benzenediboronic acid propanediol ester; (2) the deprotection resulting polymers aqueous HCl. All protected displayed good solubility in common organic solvents such as THF, chloroform, and methylene chloride. After deprotection, zero generation only partially soluble water, but first second...
There are cross-linked metal sheath and voltage drop in the long distance power cable which make difference between short cables on on-line insulation monitoring technology. In order to solve problem, two terminal synchronous tanδ measurement as a new method of had been put forward paper. The working principle theoretical basis calculation were given. feasibility was demonstrated when there synchronization error system. Matlab software used simulate circuit three-phase calculate insulation....
High-speed motorized spindle heating will produce thermal error, which is an important factor affecting the machining accuracy of machine tools. The error model high-speed spindles can compensate for and improve effectively. In order to confirm high precision model, Beetle antennae search algorithm (BAS) proposed optimize prediction based on BP neural network. Through characteristic experiment, A02 used as research object obtain temperature axial drift data at different speeds. Using fuzzy...
High-end CNC machine tools' primary transmission mechanism is a high-speed electric spindle. Thermal displacement of the spindle occurs as result heat created inside during transmission, which has an impact on machining precision high-end tools. Establishing high-precision motorized simulation model crucial because it serves foundation for optimizing and testing spindle's construction material, adjusting thermal errors, estimating its life. The thermal-solid coupling by Ansys based...
Evidence for interaction between the N-N pair and interstitial O in N-doped Czochralski silicon has been presented by studying annealing behavior of corresponding IR absorption bands.
The single‐phase α‐sialon ceramics with high optical transmittance have been prepared by hot pressing. maximum reached 65.2% and 52.2% in the infrared wavelength region, 58.5% 40% visible region for samples 1.0 1.5 mm thickness, respectively. material also exhibited good mechanical properties of hardness (20 GPa) better fracture toughness (5.1 MPa·m 1/2 ). Both improved were attributed to less‐grain‐boundary glassy phase homogeneous microstructure, which was obtained a proper process...
To reduce the induction voltage in metal sheath, cross-bonded grounding is a widely adopted method long-distance high power cables, but this introduces challenges to online monitoring and diagnosis of cable insulation. An for insulation based on analysis resistive current proposed paper. A theoretical formula separation between leakage sheath was derived, obtained. equivalent circuit three-phase long distance established using MATLAB/Simulink platform. The simulation used model three typical...
Traditional thermal sterilization technology is easy to implement and safe, but it will destroy food nutrition change taste. Therefore, people began turn their attention non-thermal sterilization. High-voltage pulsed electric field one of them; has attracted much because its high efficiency little damage food. Different types loads cause serious trailing the pulse falling edge. In view this situation, paper proposes a new topology circuit that combines solid-state switch with half-bridge...
To meet the special requirements of high-voltage pulsed electric field liquid sterilization for pulse power supply, traditional Marx circuit is improved. A bipolar square wave supply designed by combining solid state switch with circuit, which simplifies control strategy and reduces number semiconductor switches. discharge residual charge diverse load designed, makes waveform have steep rising edge fast falling edge, has good clamping function adaptability. An experimental prototype...
The controlled preparation of organic nanotubesviaself-assembly polycyclic aromatics is a contemporary challenge for supramolecular science. Here, we show that the self-assembly pyrene-containing cationic amphiphiles, 3-(4-(pyren-6-yl)phenoxy)propan-1-ammonium salts (PyPA-Cl, PyPA-Br, and PyPA-SO44), can form high aspect ratio nanotubes with uniform diameter distribution. We have also demonstrated counter anions play an important role in self-assembling results. amphiphilic molecules...
The magnetization and electrical transport in the superlattices consisting of ferromagnetic La0.67Sr0.33MnO3 nonmagnetic insulating SrTiO3 layers have been investigated. A significant displacement hysteresis loop along field axis is observed when sample field-cooled through blocking temperature TB. strength displacement, termed as exchange HE, found to exponentially decay with temperature. magnetoresistance field-cooling process obviously enhanced compared that zero-field-cooling process....
Hybrid energy devices combining multiple components based on different mechanisms can provide a more comprehensive output performance than individual ones. However, past attempts of connecting separate parts through additional wire connections have limitations low efficiency and bulky system formation. Herein, we develop hybrid device that integrates rechargeable zinc-air battery an asymmetric supercapacitor single carbon-cloth-based platform. Nanostructured Co3O4 is asymmetrically deposited...