A5100395618- Energy Harvesting in Wireless Networks
- Advanced Sensor and Energy Harvesting Materials
- Innovative Energy Harvesting Technologies
- Wireless Power Transfer Systems
- Tactile and Sensory Interactions
- Electrowetting and Microfluidic Technologies
- Fibroblast Growth Factor Research
- Structural Health Monitoring Techniques
- RFID technology advancements
- CO2 Sequestration and Geologic Interactions
- Teleoperation and Haptic Systems
- Magnetic Bearings and Levitation Dynamics
- Solar-Powered Water Purification Methods
- Methane Hydrates and Related Phenomena
- Electric Motor Design and Analysis
- Nanomaterials and Printing Technologies
- CRISPR and Genetic Engineering
- Carbon Dioxide Capture Technologies
- Antioxidant Activity and Oxidative Stress
- Energy Load and Power Forecasting
- Polydiacetylene-based materials and applications
- Topology Optimization in Engineering
- Machine Fault Diagnosis Techniques
- Aeroelasticity and Vibration Control
- Insurance and Financial Risk Management
City University of Hong Kong
2020-2024
University of Hong Kong
2023-2024
Hong Kong University of Science and Technology
2023-2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2024
Zhengzhou University
2024
State Grid Corporation of China (China)
2023
Tianjin University of Science and Technology
2023
Chinese Academy of Sciences
2023
City University of Hong Kong, Shenzhen Research Institute
2022
Lanzhou University of Technology
2022
High-performance and fully transparent droplet energy harvesting panels for hybrid rain-solar self-powered forest monitoring.
Bubbles have been extensively explored as energy carriers ranging from boiling heat transfer and targeted cancer diagnosis. Yet, despite notable progress, the kinetic inherent in small bubbles remains difficult to harvest. Here, we develop a transistor-inspired bubble generator for directly efficiently harvesting bubbles. The key points lie designing dielectric surface with high-density electric charges tailored wettability well electrode configuration. synergy between these features...
Current railway track condition monitoring relies on inefficient human inspectors and expensive inspection vehicles, where high-frequency is unreachable since these methods occupy the tracks. This article proposes a batteryless system based radio-frequency (RF) energy harvesting to detect early defects rail The key part of wireless sensor tag (BLWST) installed BLWST can harvest RF from reader train, precisely measure wirelessly transmit vibration tracks back reader. proposed eliminates...
A novel hybrid control strategy combining vector and current continuous conduction is proposed in this paper to improve the performance of a hybrid-excitation switched reluctance motor (HESRM). Vector control, widely used ac machines, redefined HESRM based on static torque characteristic simplify an controller reduce ripple. However, at high-speed heavy-load operation, tracking accuracy deteriorates ripple reduction effect gets worse. Current combined with maintain smooth In HESRM, power...
A flexible wood-templated piezoelectric ultrasonic energy harvester exhibits a high output voltage and power, demonstrating potential applications in implantable devices.
We propose a nail-mounted foldable haptic device that provides tactile feedback to mixed reality (MR) environments by pressing against the user's fingerpad when user touches virtual object. What is novel in our it quickly tucks away interacts with real-world objects. Its design allows fold back on top of nail not use, keeping free to, for instance, manipulate handheld tools and other objects while MR. To achieve this, we engineered wireless self-contained device, which measures 24×24×41 mm...
Extensive work have been done to harvest untapped water energy in formats of raindrops, flows, waves, and others. However, attaining stable efficient electricity generation from these low-frequency kinetic energies at both individual device large-scale system level remains challenging, partially owing the difficulty designing a unit that possesses liquid charge transfer properties, also can be seamlessly integrated achieve preferential collective performances without introduction tortuous...
Electrical muscle stimulation (EMS) is an emergent technique that miniaturizes force feedback, especially popular for untethered haptic devices, such as mobile gaming, VR, or AR. However, the actuation displayed by interactive systems based on EMS coarse and imprecise. mostly focus inducing movements in large groups legs, arms, wrists; whereas individual finger poses, which would be required, example, to actuate a user's fingers fingerspell even simplest letters sign language, are not...
Abstract Most electronics such as sensors, actuators and energy harvesters need piezoceramic films to interconvert mechanical electrical energy. Transferring the ceramic from their growth substrates for assembling electronic devices commonly requires chemical or physical etching, which comes at sacrifice of substrate materials, film cracks, environmental contamination. Here, we introduce a van der Waals stripping method fabricate large-area freestanding thin in simple, green, cost-effective...
Sensor matrices are essential in various fields including robotics, aviation, health care, and industrial machinery. However, conventional sensor matrix systems often face challenges such as limited reconfigurability, complex wiring, poor robustness. To address these issues, we introduce a one-wire reconfigurable that is capable of conforming to three-dimensional curved surfaces resistant cross-talk fractures. Our frequency-located technology, inspired by the auditory tonotopy, reduces...
Abstract The rapid-developing soft robots and wearable devices require flexible conductive materials to maintain electric functions over a large range of deformations. Considerable efforts are made develop stretchable materials; little attention is paid the frequent failures integrated circuits caused by interface mismatch substrates rigid silicon-based microelectronics. Here, we present solder with good weldability that can strongly bond electronic components, benefiting from hierarchical...
The human forearm is one of the most densely distributed parts body, with irregular spatial distribution muscles. A number specific muscles control hand motions. Acquiring high-fidelity sEMG signals from vital for human-machine interface (HMI) applications based on gesture recognition. Currently, commonly used commercial electrodes detecting or other electrophysiological have a rigid nature without stretchability and cannot maintain conformal contact skin during deformation, adhesive...
Piezoelectric biomaterials hold a pivotal role in the progression of bioelectronics and biomedicine, owing to their remarkable electromechanical properties, biocompatibility, bioresorbability. However, technological potential is restrained by certain challenges, including precise manipulation nanobiomolecules, controlling growth across nano-to-macro hierarchy, tuning desirable mechanical properties. We report high-speed thermal-electric driven aerosol (TEA) printing method capable...
Wrist-worn smart wearable devices, such as smartwatches and wristbands, are showing a high growth trajectory for decades in the technology market. However, most wrist-worn generators confined into watch bodies, which undermines functionality of wearables. In this study, we first characterize dynamic properties wrist motions propose four rules design energy harvesters. Based on rules, then present bionic piezoelectric harvester, composed an inner band, outer band with array, body. The...
To merge the gap between low-power output of piezoelectric energy harvesters (PEHs) and high-power demand sensors Internet Things, researchers recently start to explore PEHs arrays. However, few circuits have been developed manage multiple ac inputs from This article presents a self-powered PEH array interface circuit based on synchronized switching discharging storage capacitor through an inductor (SSDCI) technique. The can maximum total power greater than sum each individual peak power,...
Piezoelectric energy harvester (PEH) arrays are promising in many application scenarios. However, few interface circuits have been developed to manage the multiple ac inputs from PEHs. This article proposes an extensible parallel synchronized switch harvesting on inductor array scheme realize a multiinput conversion PEH arrays. We develop split-inductor-capacitor topology that can extract electrical The proposed circuit effectively handles access conflict cases of PEHs with close, identical,...
Piezoelectric energy harvester (PEH) arrays are practical solutions to the low and unreliable power output of a single PEH. However, most PEH circuits developed for addressing one-channel ac input from In this article, an extensible rectifier-less synchronized switch harvesting on inductor (ReL-SSHI) array interface with maximal point tracking (MPPT) function manage multiple inputs is designed. The ac–dc conversion performed by ReL-SSHI topology passive peak switches featured self-powered...
Nonintrusive efficiency evaluation method based on the air gap torque and rotor slot frequency is generally used in industry application. However, this has following problems: 1) number of slots should be given advance; 2) with some special pole pairs slots, stator harmonics may aliasing, which lead to great errors identification results; 3) solution needs a complicated solving procedure for flux linkage, slows down processing time motor estimation; 4) sampling total duration can also affect...