A5100352502- Machine Fault Diagnosis Techniques
- Digital Economy and Work Transformation
- Labor Movements and Unions
- Evacuation and Crowd Dynamics
- Underground infrastructure and sustainability
- Magneto-Optical Properties and Applications
- Welding Techniques and Residual Stresses
- Engineering Diagnostics and Reliability
- Luminescence Properties of Advanced Materials
- Photonic and Optical Devices
- Glass properties and applications
- Advanced Welding Techniques Analysis
- Gear and Bearing Dynamics Analysis
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Labor market dynamics and wage inequality
- Geotechnical Engineering and Underground Structures
- Additive Manufacturing Materials and Processes
- Structural Response to Dynamic Loads
- Solid State Laser Technologies
- Geotechnical Engineering and Soil Stabilization
- Geotechnical Engineering and Analysis
- Advanced Materials and Mechanics
- High-Velocity Impact and Material Behavior
- Aluminum Alloy Microstructure Properties
Nanjing Institute of Technology
2024
Guangzhou University
2023-2024
Princeton University
2024
Nanjing Medical University
2022-2023
Second Affiliated Hospital of Nanjing Medical University
2022-2023
Shanghai Micro Satellite Engineering Center
2022-2023
Jiangsu University
2023
First Affiliated Hospital of Dalian Medical University
2022
Pennsylvania State University
2019-2022
China Academy of Engineering Physics
2019-2022
Abstract Friction stir welded joints often contain voids that are detrimental to their mechanical properties. Here we investigate the conditions for void formation using a decision tree and Bayesian neural network. Three types of input data sets including unprocessed welding parameters computed variables an analytical numerical model friction were examined. One hundred eight independent experimental on three aluminum alloys, AA2024, AA2219, AA6061, analyzed. The network-based analysis with...
Once China's Tianwen-1 Mars probe arrived in a orbit after seven-month flight the deep cold space environment, it would be urgently necessary to monitor its state and surrounding environment. To address this issue, we developed flexible deployable subsystem based on shape memory polymer composites (SMPC-FDS) with large folding ratio, which incorporates camera two temperature telemetry points for monitoring local of orbiter Here, report development, testing, successful application SMPC-FDS....
Over the past decades, utilization of Li-ion batteries has provided benefits high energy and power density can be used in a variety applications, including electric vehicles, large-scale storage, grid.
In this work, the asymmetric weld fusion geometry in oscillating laser beam welding (OLBW) of aluminium alloy was reported and investigated using a numerical approach. A multi-physics heat transfer fluid flow model OLBW developed validated with corresponding experimental results. The geometry, temperature fields, behaviours for four commonly used oscillation modes, line, circle, eight, infinity, were calculated to analyse origin geometry. results show asymmetry local input along travelling...
Abstract Spin‐orbit torque (SOT), which relies on the generation of spin currents from charge in materials with strong spin‐orbit coupling, provides a fast and energy‐efficient approach for magnetization manipulation magnetic memory devices. A critical challenge SOT‐based devices lies generating out‐of‐plane polarization to eliminate need an external field, enabling all‐electric switching perpendicular magnetization. In this review, recent advances achieving field‐free by utilizing that...
Vibration monitoring and analysis are important methods in wind turbine gearbox fault diagnosis, determining how to extract characteristics from the vibration signal is of primary importance. This paper presents a diagnosis approach based on modified hierarchical fluctuation dispersion entropy tan-sigmoid mapping (MHFDE_TANSIG) northern goshawk optimization–support vector machine (NGO–SVM) for gearboxes. The (TANSIG) function replaces normal cumulative distribution (NCDF) (HFDE) method....
Ultra-high sensitivity can be obtained near the dispersion turning point (DTP), which is intrinsically determined by characteristics of two arms in a Mach-Zehnder interferometer (MZI) and usually far from observation window. The shift DTP towards window was previously realized physically adjusting waveguide structure MZI's arms, complex hard to control. In this paper, it proposed that an MZI conveniently shifted any specified wavelength just simply down-converting spatial frequency its...
A three-dimensional inverse opal (3DIO) WO3 architecture has been synthesized via a simple sacrificial template method. Morphology features of the 3DIO were characterized by scanning electron microscope (SEM) and its structure was X-ray diffraction (XRD). The shrinking ratio PMMA spheres ~28.2% through measuring distribution center-to-center distance between macropores, respectively. Beyond that, gas sensing properties investigated systematically mechanism proposed. results indicated that...
Development of effective antibacterial visible light-activated photocatalytic materials in industries including wastewater treatment and food industry has attracted increasing attention. In this work, Fe-doped TiO 2 thin films with different doping levels on a glass substrate were prepared by the sol-gel dip-coating method. The as-prepared characterized Raman spectroscopy, X-ray diffraction (XRD), photoelectron spectroscopy (XPS), atomic force microscope (AFM). XRD results show crystalline...
Metro-led underground space (MUS) plays a crucial role in modern utilisation. Recent studies have shown its great potential for high-quality urban development. However, limited evidence about MUS was available on national scale, resulting incomplete and unsystematic knowledge of The interaction relationship between the surrounding built environment also remains unclear. To fill research gap, an automatic method identification development features extraction proposed based point interest...
An extraordinary enhancement of magneto-optical Kerr effect was demonstrated in HfO2/Co/HfO2/Al/substrate composite structure by experimental measurements as well theoretical calculations. Giant polar rotation observed within a broad spectral region, and especially peak −7.92° found at wavelength 496 nm, which is nearly forty times large that single Co film. In addition, reversal also short region the longitudinal geometry. We proposed multiple reflections optical interference cavities lead...
We propose that the sensitivity can be effectively improved by spatial-frequency doubling of sensing signal before processing assisted Vernier-effect demodulation via a single fiber interferometer, which has been proven to have same effect as physically increasing optical path difference (OPD) in an interferometer but keeps sensor small size and does not introduce any additional crosstalk cost. In proposed scheme, only one is used for sensing. The spectra are squared double their spatial...
Artemisinin derivatives have been found to anti-obesity effects recently, but the mechanism is still controversial. Herein, long-term DHA treatment in obese mice significantly reduced body weight and improved glucose metabolism. However, short-term did not affect metabolism mice, suggesting that with could be secondary reduction. Consistent previous reports, we observed inhibited differentiation of adipocytes. Mechanistically, expression NADPH oxidase 4 (NOX4) white adipose tissue (WAT)...
To solve the problem of "bridgehead bumping" in transition section between road and bridge an expressway a collapsible loess area, lime-soil compaction pile composite foundation is used for first time China; subgrade improved by adding lime, arranged multilayer geogrid joint treatment various engineering measures. At same time, new type precision differential pressure settlement meter to monitor long-term bridge-subgrade with small magnitude after treatment, distribution characteristics...
Polar Kerr rotation spectra of Fe-SiO2 granular films were measured at room temperature in the wavelength region between 400 nm and 850 nm. A maximum angle (θk) 18 min was obtained when a magnetic field 10 kOe applied perpendicular to film plane. We have θk as function Fe volume fraction (fv) films. It found that increases with increasing fv peaks fv≊0.4. also decreases particle size increases. Our results indicate density particles interfaces SiO2 matrix may play an important role