Components of thermal protection mechanism of carbon/phenolic composites exposed to severe aerodynamic heat (2022)
Journal Article
Huang, J., Guo, J., Huang, H., Wang, Q., & Li, W. (2023). Components of thermal protection mechanism of carbon/phenolic composites exposed to severe aerodynamic heat. Polymer Composites, 44(1), 136-147. https://doi.org/10.1002/pc.27032

In order to improve the thermal protection efficiency of carbon/phenolic (C/Ph) composites used as the heatshield of hypersonic vehicles, it is essential to find out the components of its thermal protection mechanism. In this study, a pyrolysis layer... Read More about Components of thermal protection mechanism of carbon/phenolic composites exposed to severe aerodynamic heat.

Bayesian compressive sensing for recovering the time-frequency representation of undersampled lamb wave signals (2021)
Journal Article
Wang, Z., Wang, S., Wang, Q., Zhan, Z., Zhao, W., & Huang, S. (2022). Bayesian compressive sensing for recovering the time-frequency representation of undersampled lamb wave signals. Applied Acoustics, 187, Article 108480. https://doi.org/10.1016/j.apacoust.2021.108480

The characteristic extraction of ultrasonic Lamb wave is the prerequisite for its efficient utilization in the structural health monitoring. In the situation of intentional signal compression or unexpected data missing, the accurate recovery of conta... Read More about Bayesian compressive sensing for recovering the time-frequency representation of undersampled lamb wave signals.

Compatibility Issues With Irregular Current Injection Islanding Detection Methods in Multi-DG Units Equipped With Grid-Connected Transformers (2021)
Journal Article
Liu, M., Zhao, W., Wang, Q., Wang, Z., Jiang, C., Shu, J., …Bai, Y. (2022). Compatibility Issues With Irregular Current Injection Islanding Detection Methods in Multi-DG Units Equipped With Grid-Connected Transformers. IEEE Transactions on Power Electronics, 37(3), 3599-3616. https://doi.org/10.1109/tpel.2021.3117879

Compatibility issues with irregular current injection islanding detection methods are actually the problem that some irregular currents at the same frequency injected into the same line may cancel each other out and then the islanding detection may b... Read More about Compatibility Issues With Irregular Current Injection Islanding Detection Methods in Multi-DG Units Equipped With Grid-Connected Transformers.

Early Fault Diagnostic System for Rolling Bearing Faults in Wind Turbines (2021)
Journal Article
Xu, L., Wang, Q., Ivrissimtzis, I., & Li, S. (2022). Early Fault Diagnostic System for Rolling Bearing Faults in Wind Turbines. Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems, 5(1), Article 011004. https://doi.org/10.1115/1.4051222

The operation and maintenance costs of wind farms are always high due to high labor costs and the high replacement cost of parts. Thus, it is of great importance to have real-time monitoring and an early fault diagnostic system to prevent major event... Read More about Early Fault Diagnostic System for Rolling Bearing Faults in Wind Turbines.

Effective Focal Area Dimension Optimization of Shear Horizontal Point-Focusing EMAT Using Orthogonal Test Method (2021)
Journal Article
Sun, H., Peng, L., Wang, S., Wang, Q., Zhao, W., & Huang, S. (2021). Effective Focal Area Dimension Optimization of Shear Horizontal Point-Focusing EMAT Using Orthogonal Test Method. IEEE Transactions on Instrumentation and Measurement, 70, https://doi.org/10.1109/tim.2021.3073713

To overcome the shortcomings of low energy conversion efficiency of electromagnetic acoustic transducers (EMATs), point-focusing shear horizontal (PFSH) wave EMAT is used to focus the wave energy into a specific area. Many factors will affect the cap... Read More about Effective Focal Area Dimension Optimization of Shear Horizontal Point-Focusing EMAT Using Orthogonal Test Method.

Defect detection and identification of point-focusing shear-horizontal EMAT for plate inspection (2021)
Journal Article
Huang, S., Sun, H., Peng, L., Wang, S., Wang, Q., & Zhao, W. (2021). Defect detection and identification of point-focusing shear-horizontal EMAT for plate inspection. IEEE Transactions on Instrumentation and Measurement, 70, Article 9506409. https://doi.org/10.1109/tim.2021.3062421

As a kind of nondestructive testing (NDT) method, shear-horizontal (SH)-guided wave detection technology is widely used on an electromagnetic acoustic transducer (EMAT). Although ultrasonic-guided waves perform well in defect location, it is difficul... Read More about Defect detection and identification of point-focusing shear-horizontal EMAT for plate inspection.

Characteristic analysis of electromagnetic acoustic transducers for helical shear horizontal wave based on magnetostrictive effect (2021)
Journal Article
Huang, S., Wang, Z., Wang, S., Wang, Q., & Zhao, W. (2021). Characteristic analysis of electromagnetic acoustic transducers for helical shear horizontal wave based on magnetostrictive effect. Review of Scientific Instruments, 92(2), Article 025006. https://doi.org/10.1063/5.0023382

The electromagnetic ultrasound detection technology provides an efficient method to inspect the structural health status. For the pipeline structure, the guided ultrasonic wave propagating along the axial direction has been the focus of the current r... Read More about Characteristic analysis of electromagnetic acoustic transducers for helical shear horizontal wave based on magnetostrictive effect.

Resolution of the paradox of the diamagnetic effect on the Kibble Coil (2021)
Journal Article
Li, S., Schlamminger, S., Marangoni, R., Wang, Q., Haddad, D., Seifert, F., …Zhao, W. (2021). Resolution of the paradox of the diamagnetic effect on the Kibble Coil. Scientific Reports, 11, Article 1048. https://doi.org/10.1038/s41598-020-80173-9

Employing very simple electro-mechanical principles known from classical physics, the Kibble balance establishes a very precise and absolute link between quantum electrical standards and macroscopic mass or force measurements. The success of the Kibb... Read More about Resolution of the paradox of the diamagnetic effect on the Kibble Coil.

Multi-helical Lamb Wave Imaging for Pipe-like Structures Based on a Probabilistic Reconstruction Approach (2020)
Journal Article
Wang, Z., Huang, S., Wang, S., Wang, Q., & Zhao, W. (2020). Multi-helical Lamb Wave Imaging for Pipe-like Structures Based on a Probabilistic Reconstruction Approach. IEEE Transactions on Instrumentation and Measurement, 70, Article 6002510. https://doi.org/10.1109/tim.2020.3038474

The special form of pipe-like structure provides the helical route for ultrasonic guided wave. Considering the pipe as a flattened plate but with periodical replications, the helical wave becomes intuitional and a corresponding imaging algorithm can... Read More about Multi-helical Lamb Wave Imaging for Pipe-like Structures Based on a Probabilistic Reconstruction Approach.

Frequency response of an underwater acoustic focusing composite lens (2020)
Journal Article
Huang, S., Peng, L., Sun, H., Wang, Q., Zhao, W., & Wang, S. (2021). Frequency response of an underwater acoustic focusing composite lens. Applied Acoustics, 173, Article 107692. https://doi.org/10.1016/j.apacoust.2020.107692

Acoustic lenses composed of metamaterials are used as highly anisotropic subwavelength media and have broad applications in a wide range of industrial areas. As reported in recent research, an acoustic lens composed of a cross-shaped structure can ac... Read More about Frequency response of an underwater acoustic focusing composite lens.

Computationally Modelling the Use of Nanotechnology to Enhance the Performance of Thermoelectric Materials (2020)
Journal Article
Spriggs, P., & Wang, Q. (2020). Computationally Modelling the Use of Nanotechnology to Enhance the Performance of Thermoelectric Materials. Energies, 13(19), Article 5096. https://doi.org/10.3390/en13195096

The increased focus on global climate change has meant that the thermoelectric market has received considerably more attention. There are many processes producing large amounts of waste heat that can be utilised to generate electrical energy. Thermoe... Read More about Computationally Modelling the Use of Nanotechnology to Enhance the Performance of Thermoelectric Materials.

3D focusing acoustic lens optimization method using multi-factor and multi-level orthogonal test designing theory (2020)
Journal Article
Sun, H., Wang, S., Huang, S., Peng, L., Wang, Q., Zhao, W., & Zou, J. (2020). 3D focusing acoustic lens optimization method using multi-factor and multi-level orthogonal test designing theory. Applied Acoustics, 170, Article 107538. https://doi.org/10.1016/j.apacoust.2020.107538

Focusing systems that consist of acoustic lenses exhibit higher controllability and focusing intensity when manipulating sound waves. Different parameters have different effects on the performance of the acoustic lens, so analyzing a variety of param... Read More about 3D focusing acoustic lens optimization method using multi-factor and multi-level orthogonal test designing theory.

From μ0 to e: A Survey of Major Impacts for Electrical Measurements in Recent SI Revision (2020)
Journal Article
Li, S., Wang, Q., Zhao, W., & Huang, S. (2020). From μ0 to e: A Survey of Major Impacts for Electrical Measurements in Recent SI Revision. IEEE Transactions on Instrumentation and Measurement, 69(9), 5956-5965. https://doi.org/10.1109/tim.2020.3010351

A milestone revision of the International System of Units (SI) was made at the 26th General Conference on Weights and Measures that four of the seven SI base units, i.e., kilogram, ampere, kelvin, and mole, are redefined by fundamental physical const... Read More about From μ0 to e: A Survey of Major Impacts for Electrical Measurements in Recent SI Revision.

Orthogonal Optimal Design Method for Point-Focusing EMAT Considering Focal Area Dimensions (2020)
Journal Article
Sun, H., Huang, S., Wang, Q., Wang, S., & Zhao, W. (2020). Orthogonal Optimal Design Method for Point-Focusing EMAT Considering Focal Area Dimensions. Sensors and Actuators A: Physical, 312, Article 112109. https://doi.org/10.1016/j.sna.2020.112109

Although ultrasonic focusing methods have been widely used in electromagnetic acoustic transducers (EMATs) to solve the problem of their low energy conversion efficiency, the influence of focusing accuracy on defect identification also warrants consi... Read More about Orthogonal Optimal Design Method for Point-Focusing EMAT Considering Focal Area Dimensions.

Investigation on strengthening and toughening mechanisms of Nb-Ti-ZrB2 metal matrix ceramic composites reinforced with in situ niobium and titanium boride (2020)
Journal Article
Gao, Y., Liu, Z., Wang, Q., Liu, C., & Sun, Y. (2020). Investigation on strengthening and toughening mechanisms of Nb-Ti-ZrB2 metal matrix ceramic composites reinforced with in situ niobium and titanium boride. International Journal of Refractory Metals and Hard Materials, 92, Article 105282. https://doi.org/10.1016/j.ijrmhm.2020.105282

Nb-Ti-ZrB2 metal matrix ceramic composites with a fixed atomic ratio Nb/Ti = 2/1 and ZrB2 volume fraction changing from 0, 11 vol%, 23 vol% to 36 vol% were hot pressed at 1600 °C under 30 MPa. The influence of ZrB2 content and Ti addition on the phas... Read More about Investigation on strengthening and toughening mechanisms of Nb-Ti-ZrB2 metal matrix ceramic composites reinforced with in situ niobium and titanium boride.

A Damage Localization Method With Multimodal Lamb Wave Based on Adaptive Polynomial Chirplet Transform (2020)
Journal Article
Wang, Z., Huang, S., Wang, S., Wang, Q., & Zhao, W. (2020). A Damage Localization Method With Multimodal Lamb Wave Based on Adaptive Polynomial Chirplet Transform. IEEE Transactions on Instrumentation and Measurement, 69(10), 8076-8087. https://doi.org/10.1109/tim.2020.2993342

Ultrasonic Lamb wave testing allows health monitoring for plate structures and has been extensively applied in the modern industry. To obtain the location and further form the damage imaging, the time of flight (TOF) is a pivotal parameter. However,... Read More about A Damage Localization Method With Multimodal Lamb Wave Based on Adaptive Polynomial Chirplet Transform.

Development of a Helical Lamb Wave Electromagnetic Acoustic Transducer for Pipeline Inspection (2020)
Journal Article
Wang, Z., Wang, S., Wang, Q., Zhao, W., & Huang, S. (2020). Development of a Helical Lamb Wave Electromagnetic Acoustic Transducer for Pipeline Inspection. IEEE Sensors Journal, 20(17), 9715-9723. https://doi.org/10.1109/jsen.2020.2990795

The electromagnetic ultrasonic testing presents great potential in structural health monitoring due to its non-contact advantage. The electromagnetic acoustic transducers generating torsional and longitudinal guided wave have been extensively studied... Read More about Development of a Helical Lamb Wave Electromagnetic Acoustic Transducer for Pipeline Inspection.

Numerical modelling of unilateral point-focusing electromagnetic acoustic transducer with experimental validation (2020)
Journal Article
Sun, H., Wang, S., Huang, S., Wang, Q., & Zhao, W. (2020). Numerical modelling of unilateral point-focusing electromagnetic acoustic transducer with experimental validation. International Journal of Applied Electromagnetics and Mechanics, 62(4), 645-662. https://doi.org/10.3233/jae-190071

Electromagnetic ultrasonic testing, based on the propagation characteristics of the ultrasonic wave in the medium, is an effective technique for defect detection. The structural of the electromagnetic acoustic transducer (EMAT) determines the detecti... Read More about Numerical modelling of unilateral point-focusing electromagnetic acoustic transducer with experimental validation.

A Simple Improvement for Permanent Magnet Systems for Kibble Balances: More Flat Field at Almost No Cost (2020)
Journal Article
Li, S., Schlamminger, S., & Wang, Q. (2020). A Simple Improvement for Permanent Magnet Systems for Kibble Balances: More Flat Field at Almost No Cost. IEEE Transactions on Instrumentation and Measurement, 69(10), 7752-7760. https://doi.org/10.1109/tim.2020.2981983

Permanent magnets together with yokes to concentrate the magnetic flux into a cylindrical air gap are widely employed in Kibble balances. These experiments require a uniform magnetic flux density along a vertical path, typically a substantial fractio... Read More about A Simple Improvement for Permanent Magnet Systems for Kibble Balances: More Flat Field at Almost No Cost.

Oblique Point-Focusing Shear-Horizontal Guided-Wave Electromagnetic Acoustic Transducer With Variable PPM Spacing (2020)
Journal Article
Sun, H., Wang, S., Huang, S., Peng, L., Wang, Q., & Zhao, W. (2020). Oblique Point-Focusing Shear-Horizontal Guided-Wave Electromagnetic Acoustic Transducer With Variable PPM Spacing. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 67(8), 1691-1700. https://doi.org/10.1109/tuffc.2020.2980621

We realized a phase-coherent oblique point-focusing shear-horizontal (SH) guided-wave electro- magnetic acoustic transducer (EMAT) composed of variable-spacing periodic permanent magnets (PPMs) and racetrack coils. For traditional focusing transducer... Read More about Oblique Point-Focusing Shear-Horizontal Guided-Wave Electromagnetic Acoustic Transducer With Variable PPM Spacing.