A5110205667- Thermal Analysis in Power Transmission
- CCD and CMOS Imaging Sensors
- Engineering Applied Research
- Advanced Photonic Communication Systems
- Non-Destructive Testing Techniques
- Photonic and Optical Devices
- Thin-Film Transistor Technologies
- Industrial Vision Systems and Defect Detection
- Advanced Fiber Laser Technologies
- Smart Grid and Power Systems
- High voltage insulation and dielectric phenomena
- Transition Metal Oxide Nanomaterials
- Electrical Fault Detection and Protection
- Welding Techniques and Residual Stresses
Hebei University
2024
Jilin Electric Power Research Institute (China)
2024
BOE Technology Group (China)
2020
Hyosung Corporation (South Korea)
2002
We propose and demonstrate a dual-band Fourier domain mode-locked optoelectronic oscillator (FDML-OEO) for simultaneously generating two frequency-agile microwave signals by deploying rapidly tunable independently reconfigurable bandpass filters (TBF) parallelly placed in RF feedback loops. By adjusting the drive of TBFs, linearly chirped waveforms (LCMWs) can be generated. In particular, driving TBFs with different waveforms, Costas-coded linear frequency modulation (LFMWs) coding patterns...
Oil tank of high voltage transformer plates. During welding and operation, defects such as incomplete fusion, penetration , air holes cracks may be produced which influence the integrity density welds whole tank. In order to test shell weld high-pressure box ensure no leakage oil, phased array testing technology is used detect butt oil The characteristics defect detection under condition were studied, sound beam accessibility, process selection principle probe theoretically analyzed. tests...
Abstract A reliability evaluation model of a deep belief network based on the PSO algorithm is proposed to improve accuracy automatic reliable power systems. Through network, learning depth improved. After introducing optimize parameters, quality system further Experiments show that compared with traditional DBN algorithm, PSO-DBN has faster training convergence speed and better sample reconstruction effect.
We present a novel gate driver circuit which has been applied in 55inch 8K4K printing OLEO panel not only for display images but also sensing TFT characteristics external compensation. This is verified at high temperature (50°C) companied with humidity (80% RH) during 500 hours no problem through 5 inch experiment panels. And it can work normally very low (−20°C). Meanwhile, this GOA (Gate on array) helps our achieve narrow bezel smaller than 8mm.
Abstract Domestic regional special vehicles and construction personnel high-voltage electrocution accidents always occur, resulting in large-scale equipment socio-economic losses. Based on this, order to effectively reduce touching lines causing safety accidents, this paper researches designs a monitoring warning device for lines, mainly including sensor templates, signal transmission templates alert through the decoding of different template principles, combined with electric field...
We describe two different results obtained in the development of several types spacer for GIS. Firstly, three-phase 362 kV GIS, we present optimal design that was by electric field analysis and mechanical stress using commercial program, respectively. also report reference test our factory after manufacturing process. Secondly, installed 800 GIS has highest voltage power system Korea, performed accelerated deterioration because this requires high reliability during operation period...