A5021885614- Underwater Acoustics Research
- Underwater Vehicles and Communication Systems
- Advanced MEMS and NEMS Technologies
- Acoustic Wave Resonator Technologies
- Advanced Sensor and Energy Harvesting Materials
- Advanced Fiber Optic Sensors
- Marine animal studies overview
- Neuroscience and Neural Engineering
- Phonocardiography and Auscultation Techniques
- Ultrasonics and Acoustic Wave Propagation
- Mechanical and Optical Resonators
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Photonic and Optical Devices
- Advanced Battery Materials and Technologies
- Conducting polymers and applications
- Speech and Audio Processing
- Structural Health Monitoring Techniques
- Direction-of-Arrival Estimation Techniques
- Oceanographic and Atmospheric Processes
- Metal and Thin Film Mechanics
- Advanced Memory and Neural Computing
- Ocean Waves and Remote Sensing
- ECG Monitoring and Analysis
- EEG and Brain-Computer Interfaces
North University of China
2016-2025
Changchun Institute of Optics, Fine Mechanics and Physics
2023-2024
Chinese Academy of Sciences
2023-2024
University of Chinese Academy of Sciences
2023-2024
Shanghai University of Electric Power
2022-2023
Jimei University
2022
Beijing University of Chemical Technology
2021
Southwest University
2016-2017
Peking University
2009-2014
China XD Group (China)
2009
An attractive method to response the current energy crisis and produce sustainable nonpolluting power source is harvesting from our living environment. However, in environment always exists low-frequency form, which very difficult be utilized directly. Here, we demonstrated a novel sandwich-shape triboelectric nanogenerator convert mechanical electric with double frequency. aluminum film was placed between two polydimethylsiloxane (PDMS) membranes realize frequency multiplication by twice...
Abstract Detecting low-frequency underwater acoustic signals can be a challenge for marine applications. Inspired by the notably strong response of auditory organs pectis jellyfish to ultralow frequencies, kind otolith-inspired vector hydrophone (OVH) is developed, enabled hollow buoyant spheres atop cilia. Full parametric analysis performed optimize cilium structure in order balance resonance frequency and sensitivity. After structural parameters OVH are determined, stress distributions...
With advances in new materials and technologies, there has been increasing research focused on flexible sensors. However, most pressure sensors made using materials, it is challenging to achieve high detection sensitivity across a wide range. Although traditional silicon-based have good performance, they are not formable and, because of their rigidity brittleness, suitable for fitting with soft human skin, which limits application wearable devices collect various signals. Silicon...
The miniaturization of low-frequency marine underwater acoustic detection systems presents new requirements for 3-D vector hydrophones. Inspired by fish lateral lines, we have introduced a biomimetic hydrophone. It features microstructure with monolithically integrated four-beam central block and cilium, capable detecting signals from three dimensions. Simulations were conducted to determine the natural frequencies stress hydrophone, helping establish structural parameters. arrangement...
As a new material, graphene shows excellent properties in mechanics, electricity, optics, and so on, which makes it widely concerned by people. At present, is difficult for pressure sensor to meet both high sensitivity large detection range at the same time. Therefore, highly desirable produce flexible sensors with sufficient wide working simple process. Herein, relatively based on piezoresistivity presented combining conical microstructure polydimethylsiloxane (PDMS) bilayer together. The...
Binders play a crucial role in enhancing the cycling stability of silicon anodes next-generation Li-ion batteries. However, traditional linear polymer binders have difficulty withstanding volume expansion during cycling. Herein, inspired by fact that animals' claws can grasp objects firmly, claw-like taurine-grafted-poly(acrylic acid) binder (Tau-g-PAA) is designed to improve electrochemical performance anodes. The synergistic effects different polar groups (sulfo and carboxyl) Tau-g-PAA...
Purpose In recent years, the incidence of cardiovascular disease has continued to rise, and early screening prevention are especially critical. Phonocardiography (PCG) electrocardiography (ECG), as simple, cost-effective non-invasive tests, important tools for clinical analysis. However, it is difficult fully reflect complexity system using PCG or ECG tests alone. Combining multimodal signals can provide complementary information improve detection accuracy. Therefore, purpose this paper...
Purpose This paper aims to present the design of a micro-electro-mechanical system (MEMS)-based three-dimensional combined vector hydrophone tailored for unmanned underwater vehicles (UUVs). The proposed addresses left-right ambiguity inherent in conventional MEMS hydrophones and enhances acoustic sensing capabilities support improved UUV performance environments. Design/methodology/approach A novel MEMS-based (M3DH) is proposed, integrating highly sensitive chip with piezoelectric...
A novel Parylene-based shape-transferring technique was developed to fabricate 3-D microelectrodes, which fulfilled the requirements of high-density microelectrode array (MEA) used in retinal prosthesis. process combining anisotropic and isotropic etching utilized form silicon-tip whose shape transferred Parylene C film as a flexible biocompatible substrate. Platinum chosen electrode material owing its high charge delivery capacity chemical inertness physiological environment. An...
We propose a novel fabrication process to make flexible microneedle electrode array. The includes creation of silicon array using silicon-on-insulator substrate followed by its release parylene films as the support material. proposed structure provides flexibility thin film and rigidity structure. Using tissue-penetration tests impedance spectroscopy, we demonstrate that such is promising in invasive neural electrical stimulation recording.
This paper presents methods of promoting the sensitivity Microelectromechanical Systems (MEMS) vector hydrophone by increasing sensing area cilium and perfect insulative Parylene membrane. First, a low-density sphere is integrated with to compose “lollipop shape,” which can considerably increase area. A mathematic model on “lollipop-shaped” MEMS presented, influences different structural parameters are analyzed via simulation. Second, encapsulated through conformal deposition membrane,...
Zinc metal anodes have been widely used in aqueous Zn-ion batteries. However, side reactions and zinc dendrites were generated on the Zn anode during cycling. These problems lead to short circuits poor long-cycle stability of battery. This paper reports a multiple cross-linked PAM-CMC-GG (PCG) gel electrolyte. uniformly deposited (002) crystal surfaces under combined effect carboxylic acid amide groups PCG The behavior effectively reduces generation dendrites. In addition, abundant hydroxyl...
Since most of the contact conduction type heart sound sensors don’t take into account acoustic signal attenuation problem caused by transmitting to a sensor whose filling materials’ impedance is different human soft tissue, signal-to-noise ratio (SNR) not very well. Human immersed in blood. If sensor’s core sensitive element can be fluid, may decreased greatly. Inspired principle hydroacoustic signal’s detection, this paper proposes design based on bionic vector hydrophone. Then theoretical...
The thermal control system (TCS) is a key technology for ensuring good imaging quality of space optical remote sensor (SORS) in orbit, and its research practical significance. In this paper, multidisciplinary optimization method was proposed the TCS SORS. A particle-swarm-optimized back-propagation neural network used as surrogate model to reduce computational cost opto-mechanical-thermal integrated simulation model. Subsequently, mean variance modulation transfer function (MTF) 12 fields...
Similar to the vital performance factors, receiving sensitivity and bandwidth exist interactively in micro-electromechanical systems (MEMS)-based vector hydrophones. Some existing methods can improve of hydrophone, but these improvements are usually gained at a cost bandwidth. However, cup-shaped MEMS hydrophone that is presented this paper its while retaining sufficient The structure acts as new sensing unit replacing bionic columnar hair was previously used for sensing. relationships...