A5030834608- Advanced Measurement and Metrology Techniques
- Optical measurement and interference techniques
- Advanced Surface Polishing Techniques
- Advanced machining processes and optimization
- Advanced Numerical Analysis Techniques
- Surface Roughness and Optical Measurements
- Gyrotron and Vacuum Electronics Research
- Industrial Vision Systems and Defect Detection
- Additive Manufacturing Materials and Processes
- Metamaterials and Metasurfaces Applications
- Image Processing Techniques and Applications
- Additive Manufacturing and 3D Printing Technologies
- Plasmonic and Surface Plasmon Research
- Particle accelerators and beam dynamics
- Advanced optical system design
- Laser Material Processing Techniques
- Advanced Optical Sensing Technologies
- Optical Coatings and Gratings
- Advanced Vision and Imaging
- Color Science and Applications
- Advanced Measurement and Detection Methods
- Terahertz technology and applications
- Pulsed Power Technology Applications
- Advanced Antenna and Metasurface Technologies
- Optical Coherence Tomography Applications
Fudan University
2016-2025
Changchun University of Science and Technology
2025
Beijing Technology and Business University
2016-2023
Yiwu Science and Technology Research Institute
2022
Henan University of Science and Technology
2020
PROTO Manufacturing (United States)
2020
Huainan Normal University
2018
Peking University
2014-2017
Hong Kong Polytechnic University
2006-2016
Guangdong University of Technology
2012-2016
Abstract Additive manufacturing (AM) technology is considered one of the most promising technologies in aerospace and defense industries. However, AM components are known to have various internal defects, such as powder agglomeration, balling, porosity, cracks thermal/internal stress, which can significantly affect quality, mechanical properties safety final parts. Therefore, defect inspection methods important for reducing manufactured defects improving surface quality components. This...
Abstract Polymers are widely used materials in aerospace, automotive, construction, medical devices and pharmaceuticals. being promoted rapidly due to their ease of manufacturing improved material properties. Research on polymer processing technology should be paid more attention the increasing demand for applications. Selective laser sintering (SLS) uses a sinter powdered (typical polyamide), it is one critical additive (AM) techniques polymer. It irradiates beam defined areas by...
Various materials have been examined to obtain permittivity and permeability values required for detailed investigations on functional like microwave-absorbing high-permittivity dielectrics. We call caution when samples exhibit negative imaginary permeability, whether containing a resonance peak or not. In the retrieval procedure, Fabry-Pérot (FPR) can produce which should be classified as an extrinsic rather than intrinsic physical attribute. particular, high-loss materials, implicit FPR...
A wavelet-transform-based highlight suppression method is presented, aiming at suppressing the highlights of single image with complex texture. The strategy involves rough extraction specular information, followed by extracting high-frequency information in based on multi-level wavelet transform to enhance texture original images fusion strategy, and fusing same-level achieve image. experimental results demonstrate that proposed effectively removed large-area while preserving details,...
Abstract Pure and Er‐doped BiFeO 3 nanoparticles were prepared using a sol–gel method. The remanent magnetization was found to increase with increasing Er concentration. Due the cocontribution of both ferromagnetic coupling between 3+ Fe ions suppression spatial spin structure , substitution is more effective approach enhanced than other rare‐earth (RE) element substitutions. observed dielectric loss behavior in doped sample indicated that leakage current decreased due Er. evidence improved...
One of the essential problems in measurement freeform surfaces on a coordinate measuring machine is to design appropriate sampling plans improve industrial practice terms tradeoff between accuracy and efficiency. This paper presents curve network strategy approximate measured surface within required while minimizing cost time for by adaptively deriving optimal locations. The method iteratively extracts two sets iso-planar curves along different directions parts form network, which used...
The force-controlled fast tool servo (FTS) is an innovative and demonstrated to be very promising for both the manufacturing metrology of complex-shaped surfaces. Facing challenges in developing a force sensing FTS (FS-FTS), novel piezo-actuated FS-FTS developed without using external sensors. Unlike disturbance observer based self-sensing, mechanical deliberately designed provide exact estimation actuation dynamics nonlinearity. Moreover, through arranging sensitive end different places...
For fringe projection profilometry (FPP), the gamma effect of camera and projector will cause non-sinusoidal distortion patterns, leading to periodic phase errors ultimately affecting reconstruction accuracy. This paper presents a correction method based on mask information. Since introduce higher-order harmonics into top projecting two sequences phase-shifting patterns having different frequencies, image is projected provide enough information determine coefficients using least-squares...
Three-dimensional shape measurement plays an important role in various fields. As a way of three-dimensional measurement, fringe projection profilometry (FPP) is widely used because its non-contact, simple structure, and high stability. One the key challenges affecting accuracy gamma effect. With development FPP technology, multi-color channels are gradually applied to response different colors projector-camera system (pro-cam system) not exactly same. Therefore, more accurate correction for...
Chromatic confocal measurement (CCM) is an extensive technique of microscopy, where the inherent relation between focused wavelength and axial position enables depth sensing. Most CCM works by single-point, resulting in inevitable lateral scans for 3D measurement. To facilitate process, a method was developed, characterized combining obtained chromatic information DMD. realize field extension, objective with hyper-chromatism wide custom-designed to form 16 × 5.2 mm 3 range. Chromatism...
As the medical information systems continue to develop, sharing of electronic records (EMRs) is becoming a vital tool for improving quality and efficiency services. However, during process EMRs, establishing mutual-trust relationships increasing users’ participation are urgent problems be solved. Current solutions mainly focus on incentive mechanisms honest active participation, but often ignore potential impact research institutions’ behavior trust participation. To address this, this paper...