A5064207582- Innovative Energy Harvesting Technologies
- Energy Harvesting in Wireless Networks
- Advanced Sensor and Energy Harvesting Materials
- Optical Coherence Tomography Applications
- Photoacoustic and Ultrasonic Imaging
- Wireless Power Transfer Systems
- Advanced Fluorescence Microscopy Techniques
- Neuroinflammation and Neurodegeneration Mechanisms
- Advanced X-ray and CT Imaging
- Advanced MEMS and NEMS Technologies
- Thermography and Photoacoustic Techniques
- Vibration and Dynamic Analysis
- Vibration Control and Rheological Fluids
- Advanced Biosensing Techniques and Applications
- Thermal Regulation in Medicine
- Inflammasome and immune disorders
- Radiomics and Machine Learning in Medical Imaging
- 3D Printing in Biomedical Research
- Cell Image Analysis Techniques
- Medical Imaging Techniques and Applications
Chinese University of Hong Kong
2016-2023
Southern University of Science and Technology
2023
Dongguan People’s Hospital
2019
Vibrational interference has been found to incur inefficient system responses and suboptimal energy harvesting performance as the rotational frequency increases in conventional plucking harvester. As a result, this letter proposes music-box-like structure of harvester overcome problem by extending rotary cylinder out plane. A model is proposed experimentally validated characterizing its dynamic energetic characteristics. Numerical analyses show that can reduce vibrational be capable more at...
Nonharmonic excitations are widely distributed in the environment. They can work as energy sources of vibration harvesters for powering wireless electronics. To overcome narrow bandwidth linear harvesters, plucking piezoelectric have been designed. Plucking convert sporadic motions into force to excite and achieve broadband performances. Though different kinds designed, mechanism is not well understood. The simplified models harvesting neglect dynamic interaction between plectrum beam. This...
Harvesting energy from the human body has attracted substantial attention industries and academics as it is a promising solution to address battery life issue. In this article, we developed bimorph piezoelectric bending beam-based harvester scavenge knee motion for powering body-worn electronics such smartwatches health monitors. During walking, will flex extend periodically deform macro fiber composites (MFC) bounded beam, thus generating electricity. The mathematical models of whole system...
This Letter proposes a rotational energy harvester with hybrid piezoelectric and electromagnetic mechanisms dynamic bistability. It consists of stack force magnification frame two connected springs, coils inner impact stoppers. On the one hand, transduction is applied in gravity-based to enhance output. other bistability by utilizing centrifugal proposed improve low-frequency performances. Simulation experiments demonstrate that starts exhibit as frequency increased from zero subsequent...
Optical coherence microscopy (OCM) has shown the importance of imaging ex vivo brain slices at microscopic level for a better understanding disease pathology and mechanism. However, current OCM-based techniques are mainly limited to providing tissue’s optical properties, such as attenuation coefficient, scattering cell architecture. Imaging mechanical including elasticity viscosity, in addition provide comprehensive multi-parametric assessment sample remained challenge. Here, we present an...
Abstract The study of aging and neurodegenerative processes in the human brain requires a comprehensive understanding cytoarchitectonic, myeloarchitectonic, vascular structures. Recent computational advances have enabled volumetric reconstruction using thousands stained slices, however, tissue distortions loss resulting from standard histological processing hindered deformation‐free reconstruction. Here, authors describe an integrated serial sectioning polarization‐sensitive optical...
Abstract Purpose The Metis TM PET/CT is a self‐developed, silicon photomultiplier (SiPM) detector‐based, rodent system. objective of this study was to evaluate the performance system using National Electrical Manufacturers Association (NEMA) NU 4–2008 standard protocol. Methods Energy resolution, spatial sensitivity, scatter fraction (SF), noise‐equivalent count rate (NECR), and image quality (IQ) characteristics were measured. A micro Derenzo phantom experiment performed resolution...
Previous studies identified that microRNAs (miRNAs) have promising diagnostic and prognostic value against sepsis. MiR-486 was demonstrated to be upregulated in However, the detailed role underlying mechanism of miR-486 inflammatory response sepsis are still unclear. In this research, macrophages were stimulated with lipopolysaccharide (LPS) establish a model vitro. qRT-PCR used detect expression mRNA levels sirtuin (SIRT1), tumor necrosis factor (TNF)-α, interleukin (IL)-6 IL-1β. ELISA...
Impact excitation is common in the environment. piezoelectric energy harvesting could realize frequency up-conversion. However, dissipation mechanism impact has not been investigated so far. There no comprehensive model to be able analyze thoroughly. This paper aimed develop a generalized that considers of harvesting. In this electromechanical model, Hertzian contact theory and are identified as constitutive mechanisms. The force compared distribution analyzed input corresponds dissipated...
Non-harmonic excitations are widely available in the environment of our daily life. We could make use these to pluck piezoelectric energy harvesters. Plucking harvesting overcome frequency gap and achieve frequency-up effect. However, there has not been a thorough analysis on plucking harvesting, especially with good understanding mechanism. This paper is aimed develop model investigate mechanism predict responses harvesters under different kinds excitations. In electromechanical model,...
The study of neurodegenerative processes in the human brain requires a comprehensive understanding cytoarchitectonic, myeloarchitectonic, and vascular structures. Recent computational advances have enabled volumetric reconstruction using thousands stained slices, however, tissue distortions loss resulting from standard histological processing hindered deformation-free brain. development multi-scale imaging technique that can measure intact structure would be major technical advance. Here, we...
Recent researchers have focused on scavenging energy from ambient vibrations or movements by using piezoelectric harvesters. Rotary are regarded as potential resources they can be utilized in windmills turnstile gates stations. This study aims to the vibrational interference that could occur typical rotational plucking harvester with circularly distributed plectra outer ring circular array of multiple cantilevers inner hub. In this structure, frequency will increased times input since...
Fast and accurate drug screening can significantly improve the survival rate of cancer patients. Here, we present a new platform for treatment based on an integrated precision microtome LiMo microscope. Through this platform, tumor specimens from patients are first sectioned into 100-micron thick tissue slices cultured few days; next, live array is tested with different anti-cancer drugs weeks regularly 3D imaged at subcellular resolution, realizing personalized medicine. Our preliminary...