A5109120723- Advanced Fiber Optic Sensors
- Smart Grid Energy Management
- Ultrasound and Cavitation Phenomena
- Photonic and Optical Devices
- Optical Network Technologies
- Electric Vehicles and Infrastructure
- Photoacoustic and Ultrasonic Imaging
- Advanced oxidation water treatment
- Water Quality Monitoring and Analysis
- Analytical Chemistry and Sensors
- Advanced Battery Technologies Research
- Metal Forming Simulation Techniques
- Optical Systems and Laser Technology
- 3D Shape Modeling and Analysis
- Advanced Optical Sensing Technologies
- Photonic Crystal and Fiber Optics
- Hong Kong and Taiwan Politics
- Lattice Boltzmann Simulation Studies
- Optical Wireless Communication Technologies
- Aerosol Filtration and Electrostatic Precipitation
- Green IT and Sustainability
- Plasmonic and Surface Plasmon Research
- Advanced Vision and Imaging
- Advanced Photonic Communication Systems
- Metallurgy and Material Forming
Guilin University of Electronic Technology
2023-2025
Hohai University
2012-2024
Chinese Research Academy of Environmental Sciences
2023
Southeast University
2021
Guangdong University of Technology
2013
South China Normal University
2004
Beijing Seismological Bureau
1995
This paper presents a surface plasmon resonance (SPR) sensor based on dual-hole optical fiber, designed for the simultaneous measurement of refractive index (RI) and temperature. The is fabricated by side-polishing fiber coating gold silver films in left right holes, respectively. Additionally, hole filled with polydimethylsiloxane to enable dual-parameter detection. We analyzed sensor’s performance using finite element analysis software COMSOL, results indicate peak sensitivity reaching...
We propose a design method for few-mode erbium-doped fiber (FM-EDF) incorporating stratified doping. In the simulation design, FM-EDF effectively reduces differential mode gain (DMG) through utilization of Simulations indicate that at an input signal power -30 dBm, designed achieves DMG less than 0.5 dB across five spatial modes spanning entire C-band (1530-1570 nm) and exceeds 20 within range 1530-1560 nm. Additionally, experiments using unidirectional pumping demonstrate full-band greater...
An emission inventory, involving both air pollutants (APs) and greenhouse gases (GHGs), is needed so that the questions of pollution climate change can be co-addressed, coordinated, collaborated upon. In this study, an including APs CO2 (representing GHGs), was developed for China 2019 using two special measures. First, framework source classification used integrative inventory then emissions each sector/subsector/source in GHG were precisely arranged into by every possible means such as...
The motion characteristic of cavitation bubble is one the major factors affecting acoustic cavitation. In this paper, a model coupled with pressure established using lattice Boltzmann pseudopotential model. Aimed at demonstrating feasibility applying LB method in cavitation, simulations are compared predictions Keller equation. comparison theoretical prediction and numerical simulation shows that suitable for simulation.
A quasi-distributed fiber sensing technique with high spatial resolution is proposed and achieved by multiplexing Fabry-Perot (FP) cavities optical frequency-domain reflectometry (OFDR). Two types of FP are designed fabricated to realize temperature relative humidity (RH) sensing, respectively. digital signal processing (DSP) algorithm developed compensate for the nonlinear frequency tuning errors induced laser source. The sensors could be located in domain demodulated wavelength domain,...
Abstract We propose a stadium-shaped nested anti-resonant hollow-core fiber (SSAF), designed to enable high birefringence and low loss in the near-infrared bands. A numerical investigation simulation for variations parameters of structure were conducted, confinement (CL) was reduced by parameter optimization, while 10-4 maintained. With optimized SSAF structure, CL are improved 1.39 ×10−4 26.5 dB/km at 1.38 µm, 1.28 2.64 at
1.55 respectively. Meanwhile, it exhibits favorable...
Dual-frequency ultrasonic assisted ozonation was proposed to degrade pesticide wastewater. The frequencies of ultrasound were 28 kHz and low-MHz (208 kHz, 495 679 890 kHz). influence frequency investigated in this paper. electrical conductivity deionized water measured under different conditions, degradation rate acephate solution used verify effect the treatment. results implied that 208 system suitable for ozone dissolving degradation.
A solar-powered in-vehicle semiconductor refrigeration system by remote control is put forward. With the solar power as source of energy, uses safe and pollution-free method, adopts GSM technology to make via short message mobile phone, so achieve cooling effect without starting engine car. Through model experiment, working current consumption well temperature were analyzed, verified feasibility system. Being energy saving environmental friendly, this design has a high application potential.
Ultrasonic intensity has a great influence on the concentration of cavitation bubbles. Considering characteristic cavitation, in this paper, we propose method measuring amount bubbles to identify change indirectly. First, acquires images reaction liquid under action certain power ultrasonic through machine vision technology; then, obtains micro quantity generated by cavitation; finally, establish mathematical model between and indirectly detect intensity.
As a part of the global decarbonization agenda, electrification transport sector involving large-scale integration electric vehicles (EV) constitues one key initiatives. However, introduction EV loads results in more variable electrical demand profiles and higher peaks, challenging power system balancing, voltage network congestion management. In this paper, novel optimal load scheduling approach for coupled transportation is proposed. It employs an charging forecasting model to generate...
In order to meet the demand of video detection and fast repair cracks on large submerged structure in different depths, this paper designed an ultrasonic cleaning device with adjustable power. A hydraulic pressure sensor collects signal place be detected real time then sends it MCU deal with. This will adjust duty ratio synchronously according depth, while making head work under rated output power, so as avoid surface damage building material achieve balanced effect. By testing water depths...
This paper reports a design proposal of sonochemical setup for pesticide wastewater degradation. Multi-parameters obtained by multi-sensors the were utilized to control experimental variables and analyze degradation effect. Based on method designed, experiments deltamethrin set up. In work, treatments using ultrasonic, ozone, combination them carried out respectively, parameters including ultrasonic frequency, pH, electrical conductivity, temperature as well mass taken into consideration....
The application of ultrasonic cleaning for submerged structure is more common, but the resonant frequency piezoelectric transducer changed when it heat at work. traditional matching method cannot adapt serial resonance capacitance branch and dynamic tuning inefficient. We proposed a with signal inductor adjustment combined. technique identifying true max current value Phase Locked Loop tracking was used. automatic tracing realized by searching value, working exceeding threshold 0.9I ....
This paper presents a new method for battery degradation estimation using power-energy (PE) function in battery/ultracapacitor hybrid energy storage system (HESS), and the integrated optimization which concerns both parameters matching control HESS has been done as well. A semiactive topology of with double-layer capacitor (EDLC) coupled directly DC-link is adopted electric city bus (HECB). In purpose presenting quantitative relationship between serving life, data during 37-minute driving...
As a technique exploring the data inside geometric models, volume rendering is becoming hot topic in graphics. Obtaining well-designed transfer function challenging task general rendering. This paper constructs flexible model for of finite element data. In analysis, information critical region, where concerned properties have extreme value, generally most interesting. The region and embedded are displayed by adjusting opacity color parameters function, respectively. beneficial generation...
A quasi-distributed fiber optic relative humidity sensing system based on optical frequency modulated conti-nuous wave (FMCW) multiplexing Fabry-Perot interferometer (FPI) is proposed. In this paper, the fundamental structure and locating principle are introduced, layout signal demodulation process described in detail. Next, performance of evaluated through experiments. Finally, stability tested by repeatability The can be used for online monitoring environmental status has significant...
In this paper, a novel method for photoacoustic (PA) waves to imaging is proposed. A focused probe ultrasonic beam passes through specimen and tags the position of interested PA signal. Reconstruction original signal in situ accomplished by demodulating probe-beam. The provides new measurement system with improve signal-to-noise ratio take out more messages. Applied proper impulse detector filter-back-project algorithm, 2D tomograph was obtained.