A5015522756- Metal Extraction and Bioleaching
- Minerals Flotation and Separation Techniques
- Extraction and Separation Processes
- Advanced Sensor and Energy Harvesting Materials
- Acoustic Wave Resonator Technologies
- Conducting polymers and applications
- Ferroelectric and Piezoelectric Materials
- Electromagnetic Scattering and Analysis
- Electromagnetic Simulation and Numerical Methods
- Fire dynamics and safety research
- Gas Sensing Nanomaterials and Sensors
- Flame retardant materials and properties
- Supercapacitor Materials and Fabrication
- High voltage insulation and dielectric phenomena
- Higher Education and Teaching Methods
- Advanced Fiber Optic Sensors
- Microwave Engineering and Waveguides
- Ultrasonics and Acoustic Wave Propagation
- Perovskite Materials and Applications
- Lightning and Electromagnetic Phenomena
- Analytical Chemistry and Sensors
- Mineral Processing and Grinding
- Environmental and Industrial Safety
- Advanced Memory and Neural Computing
- Polymer Nanocomposites and Properties
Dunhuang Research Academy
2024
Anhui University
2021-2024
Henan University of Technology
2024
Jiangsu University of Technology
2020-2022
Zhejiang University
2018-2021
Zhejiang University of Science and Technology
2021
Hangzhou Xixi hospital
2019
Shandong Academy of Building Research
2009-2017
Iowa State University
2012-2015
Kunming University of Science and Technology
2010-2014
A flexible surface acoustic wave (SAW) strain sensor in the frequency range of 162–325 MHz was developed based on a single crystalline LiNbO3 thin film with dual resonance modes, namely, Rayleigh mode and thickness shear (TSM). This SAW could handle wide up to ±3500 με owing its excellent flexibility, which is nearly six times detecting bulk piezoelectric substrate sensors. The exhibited high sensitivity 193 Hz/με maximum hysteresis less than 1.5%. temperature coefficients frequency, for TSM...
Objective: Continuous measurement of key physiological parameters, such as heart rate (HR), pulse oxygen saturation (SpO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ), and sweat pH value, has very broad applications in healthcare, disease surveillance, fitness sports training. In this study, a stretchable optical sensing patch system was developed for real-time continuous noninvasive monitoring the HR, SpO , pH, data were transmitted...
This paper presents a novel flexible capacitive 3D tactile sensor using cross-bar polydimethylsiloxane (PDMS) walls and micropillar arrays as the composite structure dielectric layer. The unit consists of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$2\times 2$ </tex-math></inline-formula> capacitor array where electrode pairs are arranged in pattern to ensure fixed overlap area for these capacitors. A...
This paper reports a novel flexible film bulk acoustic resonator (FBAR) based on β -phase polyvinylidene fluoride (PVDF) piezoelectric polymer. The proposed device was simulated and evaluated; then, low-temperature photolithography process with double exposure method developed to pattern the electrodes for device, which enabled retain properties of PVDF film. Results showed that β-phase FBARs had resonant frequency round 9.212 MHz high electromechanical coupling coefficient ( k 2 ) 12.76% ±...
Abstract In this paper, new strategies are proposed to design high‐performance organic–inorganic hybrid perovskite (PVK)‐based triboelectric nanogenerators (TENGs) via both chemical composition modulation and electric field‐induced ion migration in the films. Both variation under field found change type of conductivity films, then modify their surface potentials electron affinities. These utilized fabricate PVK‐based TENGs pairs with poly‐tetrafluoroethylene (PTFE) or nylon respectively....
This work presents the development of flexible dual-mode surface acoustic wave (SAW) sensor based on single crystalline thin film lithium niobate (TF-LN). Numerical modeling is conducted to investigate SAW propagation and effects strain sensitivity. The dependence sensitivity angles between applied direction analyzed numerically experimentally, showing that maximum at 45° rather than longitudinal direction. 128° Y-cut TF-LN (~50 µm), obtained by micromachining technique, utilized as...
Cryopreservation is essential to effectively extend the shelf life of delicate biomaterials while maintaining proper levels cell functions. requires a cryoprotective agent (CPA) suppress intracellular ice formation during freezing, but it must be removed prior clinical use due its toxicity. Conventional multistep CPA loading and unloading approaches are time consuming, often creating osmotic shocks causing mechanical injuries for biological samples. An efficient surface-acoustic-wave- (SAW-)...
The increased public concerns on healthcare, the environment and sustainable development inspired of biodegradable biocompatible electronics that could be used as degradable in implants. In this work, a fully flexible resistance random access memory (RRAM) was developed with low-cost biomaterial gelatin dielectric layer polymer poly(lactide-coglycolide) acid (PLGA) substrate. PLGA can synthesized by simple solution process, substrate peeled off handling for operation once devices are...
The rheological behaviors of in situ microfibrillar blends, including a typical semicrystalline/semicrystalline (polyethylene terephthalate (PET)/high-density polyethylene (HDPE)) and amorphous/semicrystalline (polycarbonate (PC)/HDPE) polymer blend were investigated this study. PET PC microfibrils exhibit different influences on the blends. viscosity blends increases with increased concentrations. Surprisingly, length/diameter ratio as result hot stretch (HSR) has an opposite influence...
Langasite (LGS) surface acoustic wave (SAW) temperature sensors have a large second order coefficient of frequency, which leads to their non-linear and non-monotonic responses in wide range possibly makes the measured temperatures non-unique for specific sensor response. Here, we propose high-temperature Pt/LGS SAW with linear frequency–temperature behavior range, was fabricated on LGS (0°, 138.5°, 72°) substrate. The has single mode, but dual resonances similar second- third-order...