A5100730239- Magnetic Properties and Synthesis of Ferrites
- Additive Manufacturing and 3D Printing Technologies
- Semiconductor Quantum Structures and Devices
- Terahertz technology and applications
- Magnetic properties of thin films
- GaN-based semiconductor devices and materials
- Electrospun Nanofibers in Biomedical Applications
- Manufacturing Process and Optimization
- Magnetic Properties of Alloys
- Bone Tissue Engineering Materials
- ZnO doping and properties
- 3D Printing in Biomedical Research
- Electromagnetic wave absorption materials
- Advanced Sensor and Energy Harvesting Materials
- Ferroelectric and Piezoelectric Materials
- Robotic Mechanisms and Dynamics
- Advancements in Battery Materials
- Photonic and Optical Devices
- Characterization and Applications of Magnetic Nanoparticles
- Quantum and electron transport phenomena
- Planetary Science and Exploration
- Welding Techniques and Residual Stresses
- Photopolymerization techniques and applications
- Nanoparticle-Based Drug Delivery
- Engineering Technology and Methodologies
Shanghai University
2025
Lanzhou University of Technology
2011-2022
China Academy of Space Technology
2019
Shanghai Institute of Microsystem and Information Technology
2008-2009
Chinese Academy of Sciences
2008-2009
Chang Gung University
2007
National University of Singapore
2004-2005
Purpose This paper aims to present a novel rapid prototyping (RP) fabrication methods and preliminary characterization for chitosan scaffolds. Design A desktop robot dispensing (RPBOD) system has been developed fabricate scaffolds tissue engineering (TE) applications. The is computer‐controlled four‐axis machine with multiple‐dispenser head. Neutralization of the acetic acid by sodium hydroxide results in precipitate form gel‐like strand. scaffold properties were characterized scanning...
The morphology of magnetic materials has a great influence on the properties, which is attributed to anisotropy materials. Therefore, it worth studying fabrication aligned fiber and change its domain distribution. Nanoparticles nanofibers were prepared by hydrothermal electrospinning methods, respectively. At same time, arranged collected drum collecting device. After annealing at 700 °C, was found that diameter fibers different drums similar. By hysteresis loops nanoarrays, they had strong...
We have theoretically investigated current self-oscillation in doped n+nn+ GaAs1−xNx diodes driven by direct (dc) electric field. The is associated with negative differential velocity effect the highly nonparabolic conduction band of this unique material system. By solving a time-dependent drift-diffusion model that takes into account effect, we provide detailed analysis oscillations. frequencies oscillations are gigahertz to terahertz region, depending on doping concentration and applied dc...
We carry out a theoretical study of nonlinear dynamics in terahertz-driven n+nn+ GaAs1−xNx diodes. A cooperative oscillatory mode shows up due to the negative differential velocity (NDV) effect highly nonparabolic conduction band have made detailed investigations complicated chaotic by changing dc bias, ac amplitude, and frequency terahertz fields with chaos-detecting methods, such as Poincaré bifurcation diagram, power spectrum, first return map. The influence NDV curves on is also studied....
Abstract Exchange bias effect(H EB ) systems offer various technological application, which has been playing a key role in spintronics. CoFe 2 O 4 @NiO with core–shell nanostructure synthesized through coaxial electronspinning. The exchange of is different the molar ratio core to shell, when shell 1:3, its maximum value 763 Oe at 5 K. Also, values Mr, Ms, Mr/Ms and Hc 300 K are first increases then decreases due NiO, pinning effect play vital role. Its anisotropy magnetic domain structure...
The various buffer layer structures have been investigated to decrease the dislocation density of GaN/Si(111) epilayer for light emitting diodes using TEM, SEM and double crystal X-ray diffraction. Low temperature AIN/AIGaN with 10 period AlGaN/GaN superlattice has shown be effective in reducing can improve quality. full width at half maximum (FWHM) is 611 arcsec. surface pit greatly reduced free crack. In addition, bending pairing equivalent neighboring responsible density.
We carry out a theoretical study of nonlinear dynamics in terahertz-driven n+nn+ wurtzite InN diodes by using time-dependent drift diffusion equations. A cooperative oscillatory mode appears due to the negative differential mobility effect, which is unique feature aroused its strong nonparabolicity Γ1 valley. The appearance different modes, including periodic and chaotic states, attributed competition between self-sustained oscillation external driving oscillation. transitions states are...
Current self-oscillation in doped n+nn+ wurtzite InN diodes driven by a dc electric field is theoretically investigated solving the time-dependent drift-diffusion model. associated with negative differential mobility effect highly non-parabolic conduction band of InN. A detailed analysis dependence current oscillations on doping concentration and applied presented. The oscillation frequencies can reach up to terahertz (THz) region. self-oscillating diode may be promising candidate for THz...
Abstract The topographical data of movement environment and the real-time position orientation lunar rover must be accurately measured to test rover’s ability localization, path planning mobile control. These will used track in simulated terrain real time. Lunar tracking measurement technology with laser radar iGPS is discussed this paper, a system designed measure environment. This can provide some reference for research large-scale, high-precision high-frequency other rigid objects...