A5055152253- Terahertz technology and applications
- Ultrasonics and Acoustic Wave Propagation
- Non-Destructive Testing Techniques
- Thermography and Photoacoustic Techniques
- Advanced Fiber Optic Sensors
- Optical Coherence Tomography Applications
- Photonic Crystals and Applications
- Structural Health Monitoring Techniques
- Mechanical Behavior of Composites
- Geophysical Methods and Applications
- Spectroscopy and Laser Applications
- Solar Thermal and Photovoltaic Systems
- Innovative concrete reinforcement materials
- Hybrid Renewable Energy Systems
- Photoacoustic and Ultrasonic Imaging
- Force Microscopy Techniques and Applications
- Photonic and Optical Devices
- Energy and Environment Impacts
- Fire effects on concrete materials
- Structural Behavior of Reinforced Concrete
- Infrastructure Maintenance and Monitoring
- Microwave and Dielectric Measurement Techniques
- Acoustic Wave Resonator Technologies
- Quantum Dots Synthesis And Properties
- Light effects on plants
Fuzhou University
2019-2024
Fujian Agriculture and Forestry University
2017-2018
Terahertz (THz) technology has firmly established itself as an effective sensing and nondestructive testing technique for the detection of substances physico-chemical evaluation materials structural systems since its first emergence almost three decades ago. To date, both effectiveness accuracy this have been extensively demonstrated in a myriad applications across spectrum research development all way to process analytical technology, quality control, testing, health monitoring. These are...
Abstract The use of terahertz time-domain spectroscopy (THz-TDS) for the nondestructive testing and evaluation (NDT&E) materials structural systems has attracted significant attention over past two decades due to its superior spatial resolution capabilities detecting characterizing defects damage in non-conducting materials. In this study, THz-TDS system is used detect, localize evaluate hidden multi-delamination (i.e., a three-level system) multilayered GFRP composite laminates. To...
Terahertz time-domain spectroscopy is a contactless and nondestructive testing technique that often used to measure the thickness of layered materials. However, presents limited detection resolution, especially in thin thermally grown oxide (TGO) thermal barrier coatings whose below 30 µm. In this study, an SWT-BP algorithm combining stationary wavelet transform (SWT) backpropagation (BP) neural network was proposed, regression coefficient SWT-detailed results 0.92. The prediction were good...
In recent years, several factors such as environmental pollution, declining fossil fuel supplies, and product price volatility have led to most countries investing in renewable energy sources. particular, the development of photovoltaic (PV) microgrids, which can be standalone, off-grid connected or grid-connected, is seen one viable solutions that could help developing Rwanda minimize problems related shortage. The country’s current electrification rate estimated 59.7%, hydropower remains...
The elastic fibre prestressing (EFP) technique has been developed to balance the thermal residual stress generated during curing of a polymeric composite. continuous reinforcements are prestressed and then impregnated into matrix, where prestress load is only removed after resin fully cured in order produce an elastically matrix composite (EPPMC). Although EFP active improving static mechanical performance composite, its mechanics on dynamic viscoelasticity still limited. Here, we...
Abstract Glass fiber‐reinforced polymer‐matrix (GFRP) composites are used to manufacture devices such as radomes, electrical insulators, and radar‐absorbing structures, many of which in applications with strict mechanical dielectric property requirements. As such, designs properties GFRP composite materials should be regularly improved guarantee their safe operation meet constantly evolving application In this study, glass fiber (GF) particles epoxy resin 128 (EP‐128) were high‐performance...
The energy sector of today’s Rwanda has made a remarkable growth to some extent in recent years. Although natural resources (e.g., hydro, solar, and methane gas, etc.), the country currently an installed electricity generation capacity only 226.7 MW from its 45 power plants for population about 13 million 2021. current national rate electrification is estimated 54.5% (i.e.; 39.7% grid-connected 14.8% off-grid connected systems). This clearly demonstrates that having access still challenge...
As a promising nondestructive testing (NDT) technique with very adaptive physical modeling of wave transmission process, terahertz technology is used for the detection and characterization nonpolar materials evaluation layered and/or defective structures. THz-TDS can also be to perform spectroscopic analysis detect structural defects in thermal barrier coatings (TBCs) aero-engines. Although it generally difficult measure structure thin oxide layer whose thickness lower than 30 µm (the...
This study presents a novel and highly accurate method of measuring the geometric thickness self-lubricating fabric liner bearings by combining optical coherence tomography (OCT) technology Hanning-windowed energy centrobaric (HnWECM). The wear-resistant coating material is one important indicators for evaluating its wear, measurement great significance preventing failure. To address issue significant errors caused using refractive index sample instead group to calculate material’s...
Selection of ohmic contacts to Cu 2 ZnSnS 4 (CZTS) films is one the most crucial tasks involved in fabrication efficient CZTS devices. In present work, formation contact with p‐type was studied. The thin were fabricated by thermal evaporation, followed subsequent sulphurisation atmosphere N + H S (5%). Ag, In, Al and Ti chosen as metal electrodes CZTS‐based films. characteristics structure Mo/CZTS/ M ( = Ti) investigated using XRD, Raman, SEM, EDX, name but a few. property studied material...
Image Change Detection (ICD) methods are widely adopted to update large area land use/cover products. Uncertainty problems, however, well known in such techniques, and a transparent assessment is necessary. In this study, framework was proposed for evaluating binary change utilizing remote sensing images. First, two ICD were used establish maps. Second, decisions on (C) Non-Change (NC) classes reached through thresholding Then, results evaluated using sampling designs: random stratified...
An acoustic-excitation optical coherence vibrometer (AE-OCV) is proposed for noncontact microstructure vibration measurement and modal analysis. The dynamic parameters of the can be captured with a subnanometer displacement resolution by AE-OCV using spectral wavelength calibration algorithm center correction method. natural frequency could also obtained developed system swept-frequency acoustic excitation Furthermore, home-made spectrometer based on high-speed linear camera provide range...