A5082027496- Force Microscopy Techniques and Applications
- Mechanical and Optical Resonators
- Piezoelectric Actuators and Control
- Integrated Circuits and Semiconductor Failure Analysis
- Rock Mechanics and Modeling
- Hydraulic Fracturing and Reservoir Analysis
- 2D Materials and Applications
- Photoacoustic and Ultrasonic Imaging
- Near-Field Optical Microscopy
- Iterative Learning Control Systems
- Advanced MEMS and NEMS Technologies
- Surface and Thin Film Phenomena
- Electric Motor Design and Analysis
- Nanofabrication and Lithography Techniques
- Advanced Surface Polishing Techniques
- Advanced Condensed Matter Physics
- Image Processing Techniques and Applications
- Geoscience and Mining Technology
- Advanced Materials Characterization Techniques
- Sparse and Compressive Sensing Techniques
- Magnetic Properties and Applications
- Perovskite Materials and Applications
- Advanced Measurement and Metrology Techniques
- MXene and MAX Phase Materials
- Soft Robotics and Applications
Shandong University
2023-2024
Beihang University
2015-2021
Ministry of Education of the People's Republic of China
2016
Recent interest in high-precision positioning stages with large travel ranges has sparked renewed attention to the development of voice coil motors (VCMs). Due their output force, VCMs can actuate more complicated flexure structures, eliminate rail friction, and improve speed. The VCM structure is both compact flexible; hence, it convenient design for a variety stage structures. Furthermore, combined other actuators are able achieve high precision. In this paper, we summarize principles...
Two-dimensional semiconductors, such as MoS2, have demonstrated great potential applications in post-Moore electronic and optoelectronic devices, organic cations intercalation has been widely utilized to modulate their physical properties. However, the correlation between conductivity, carrier mobility, density, structure of intercalated MoS2 is still unclear. In this Letter, we systematically investigated structural electrical transport properties pristine with various...
A quartz tuning fork (QTF) has been widely used as a force sensor of the frequency modulation atomic microscope due to its ultrahigh stiffness, high quality factor and self-sensing nature. However, bulky structure exposed surface electrode arrangement, application is limited, especially in liquid imaging situ biological samples, ionic liquids, electrochemical reaction, etc. Although complication can be resolved by coating insulating materials on QTF then immersing whole into liquid, it would...
The tip motion of the dynamic atomic force microscope in liquids shows complex transient behaviors when using a low stiffness cantilever. second flexural mode cantilever is momentarily excited. Multiple impacts between and sample might occur one oscillation cycle. However, commonly used Fourier transform method cannot provide time-related information about these features. To overcome this limitation, we apply wavelet to perform time-frequency analysis liquids. momentary excitation phenomenon...
A novel method based on Bayesian compressed sensing is proposed to remove impulse noise from atomic force microscopy (AFM) images. The image denoising problem transformed into a imaging of the AFM. First, two different ways, including interval approach and self-comparison approach, are applied identify noisy pixels. An undersampled AFM generated by removing pixels image. Second, series measurement matrices, all which identity matrices with some rows removed, constructed recording position...
Brittleness index (BI) is a key parameter used for reservoir fracability evaluation and "sweet spot" search in shale gas exploration. The existing assessment methods cannot guide the fracturing design field treatment due to their insufficient theoretical foundation neglect on influences of engineering factors. This study aims solve this problem by using thermodynamics criterion nonlinear fracture mechanics. First, quantitative relationship between energy loss rock brittleness was...
Abstract Atomic force microscope (AFM) is an idealized tool to measure the physical and chemical properties of sample surfaces by reconstructing curve, which great significance materials science, biology, medicine science. Frequency modulation atomic (FM-AFM) collects frequency shift as feedback thus having high sensitivity it accomplishes a true noncontact mode, means potential in biological detection field. However, challenge establish relationship between cantilever observed practice...