A5100347408- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Seismic Imaging and Inversion Techniques
- Advanced Fiber Optic Sensors
- Hydraulic Fracturing and Reservoir Analysis
- Seismic Waves and Analysis
- Solid State Laser Technologies
- Optical Network Technologies
- Laser-Matter Interactions and Applications
- Smart Grid and Power Systems
- Soil Mechanics and Vehicle Dynamics
- solar cell performance optimization
- Microwave Engineering and Waveguides
- Power Systems and Renewable Energy
- Video Analysis and Summarization
- Advanced Wireless Communication Techniques
- Advanced Image Processing Techniques
- Hydraulic and Pneumatic Systems
- Gyrotron and Vacuum Electronics Research
- Sensorless Control of Electric Motors
- Advanced Antenna and Metasurface Technologies
- PAPR reduction in OFDM
- Advanced Technologies in Various Fields
- Optical Wireless Communication Technologies
- Reservoir Engineering and Simulation Methods
Harbin Engineering University
2025
National Engineering Research Center of Electromagnetic Radiation Control Materials
2021-2022
Ningbo University
2021-2022
China Academy of Launch Vehicle Technology
2022
Shell (Netherlands)
2022
Shenzhen University
2020
Changchun University of Science and Technology
2020
Wuhan Technical College of Communications
2020
Technical Institute of Physics and Chemistry
2019
State Grid Corporation of China (China)
2014
Abstract This paper introduced a novel constitutive relation for designing anisotropic material-based electrostatic invisibility cloaks, independent of both the medium parameters and geometric shape cloaked target. The results demonstrated that employing positive negative refractive index materials generated cancellation illusion respectively. To realize required dielectric properties, we employed equivalent theory, which revealed these specialized can be synthesized using doping techniques....
Over the past decade, majority of deep water blocks in Gulf Mexico have been covered multiple times with seismic data from narrow‐azimuth, towed‐streamer acquisition (NAZ). In complex subsalt areas, each NAZ dataset provides unique subsurface illumination benefits. Multiple‐azimuth are now frequently integrated to provide extended coverage and for better imaging structures. data, shot receiver locations covering a large portion two dimensional surface, presents new challenge deriving single...
We demonstrate a watt-level mid-infrared supercontinuum source, with the spectrum covering infrared region from 2 to 6.5 µm, in an all-fiber structured laser transmission system. To further improve SC spectral bandwidth, power and system compactness follow-up As S 3 fiber, we theoretically experimentally explored some knotty problems that would potentially result fiber end-facet failure low output during high-power butt-coupling process proposed optimal coupling distance on premise of safety...
We demonstrate the tunable Raman femtosecond solitons generation with a record-breaking power of 1.2 W at 2.3 µm and an ever-reported highest soliton energy conversion efficiency 99% via precise seed-pulse management in thulium-doped single-mode fiber amplifier. find that central wavelength chirp incident pulses could dramatically affect red-shifted energy, locations, efficiency, threshold fundamental generation. For first time, we experimentally illustrated how seed pulse Kelly sidebands...
In this Letter, we report continuous-wave (CW) lasers with wavelengths beyond 3 µm in homemade Ho 3+ /Pr co-doped AlF -based glass fibers. The laser cavity was established through the integration of a dichroic mirror (DM, HR@3–3.1 µm) positioned at pump end and partial reflectivity (PR) fiber Bragg grating (FBG) situated emission end. FBGs fibers were fabricated by fs direct-writing method, resonant 3.009, 3.036, 3.064 µm, respectively. Under 1.15 laser, maximum unsaturated output power...
We experimentally demonstrate the 2-8 μm high-power supercontinuum generation and theoretically propose a statistical method for precise estimation of multi-pulse spectral evolution in ZBLAN As2S3 fiber cascaded all-fiber structured nonlinear system. In experiment, with aid ultra-low loss fusion splice technology, high-efficiency butt-coupling technology thermal management we obtained record-breaking source spectrum spanning from 2 to 8 at power 730 mW. Considering strong pulse splitting...
We demonstrate a thulium-doped mode-locked fiber laser with ultra-broadband wavelength tunability for micro-strain sensing based on the multimode interference (MMI) effect in single-mode-multimode-single-mode (SMS) configuration. The homemade SMS device high performance is fusion spliced cavity, and developed dispersion precisely managed all-fiber structured picosecond record-breaking tuning range from 1976 to 1916 nm while exerting axial strain this device. experimentally explored...
The promotion and application of PLC technology has been restricted by the power line's bad channel characteristics noise distribution. In order to overcome these disadvantages achieve more stable, secure high speed level communication, writer designed a narrow-band communication platform based on G3-PLC. A FPGA was used procedure signal processing for transmitter receiver. During which OFDM technology, convolutional coding Viterbi decoding were used. At last, system is verified simulation...
For the power generation prediction of traditional hydropower stations, most them only use time series and neglect to study spatial topological relationship stations in river basin, so that it is difficult fully explore characteristic space stations. In this paper, a research method for basin based on multi-head attention map convolutional neural network proposed. This establishes first-level node neighborhood feature geographic distribution information uses graph convolution carry out...
In order to effectively reduce the failure rate of vibrating screens, a vibration monitoring system design was proposed based on structure and working principle. The should be able monitor operating state screen in real time, including amplitude, frequency, axial displacement, etc., detect abnormal conditions time give warning prompts. key hardware designed, acceleration sensor, power module, signal filtering circuit, etc. sensitivity sensor measured using comparative method accurately...
Spacial coaxial resonator plays an important role in spacial system. However, its multipactor efiect has not been reported so far. This paper presents a novel type of structure with low risk. Compared conventional structures, the proposed improves threshold fllters nearly 3dB. Experimental results and 3D full-wave analysis show good accordance predicted characteristics.
For the English classroom teaching video denoising algorithm, it is not only necessary to consider whether noise removal of output thorough, but also actual operating efficiency and robustness algorithm. In process thesis research, after reading a large number internal external documents on algorithms analyzing pros cons various algorithms, this paper proposes new which uses recently proposed grid flow motion model based camera compensation generate denoised video. Compared with current...
Concentric perfect optical vortex beam(CPOV) is a significant light field which pay much attention. Here, we demonstrate the CPOV beam be used in Free-space communications, can increase capacity at finite aperture. The result shows could decoded simply via conjugate interference method. Moreover, design communication system and realize transmission of pixel value. Furthermore, intensity vortex(pOV) outermost decreases with number POV increasing, will slowly decrease. For 8 beams, about 5%...
We present the development of an As <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> S xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> fiber-based reusable inline optical connector; and, for first time to best our knowledge, integrated it into a 2 μm chirped pulse amplification system as stretcher. By this mechanism, near 20 times stretching ratio was achieved in 0.5 m-long fiber and introduction insertion loss low 2.84 dB while...
This paper expounds the main structure design and function implementation of a provincial power grid relay protection setting calculation integration system.In accordance with actual features work, system is developed based on project.For development research system, to achieve certain standardization operation management, network intelligent, great significance.
Integration of optics inside a detector-dewar-cooled-assembly (DDCA) is good strategy to miniaturized infrared cameras in order provide small payload systems with thermal vision capability for both military and civilian applications. The optical additional mass has be very limit the cool-down time DDCA. However, reducing these results decrease resolution impaction on image quality, making them difficult use high-performance high sensitivity In achieve better performances, classical system...
Deepwater Campeche in the southern Gulf of Mexico is at confluence multiple structural domains, including a complex and extensive salt canopy, creating significant challenges for velocity model building subsalt imaging. Recent developments Full Waveform Inversion (FWI) FWI Imaging provide us with good opportunity to solve these this area. We demonstrate that few iterations updates driven by can uplifts image and, therefore, understanding underlying geology, even when only wide azimuth (WAZ)...