A5100767107- Lightning and Electromagnetic Phenomena
- Electrical Fault Detection and Protection
- Fire effects on ecosystems
- High voltage insulation and dielectric phenomena
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Electrostatic Discharge in Electronics
- Advanced machining processes and optimization
- Advanced Fiber Optic Sensors
- Advanced Sensor and Control Systems
- Thermal Analysis in Power Transmission
- Combustion and Detonation Processes
- Gear and Bearing Dynamics Analysis
- Advanced Algorithms and Applications
- Advanced Measurement and Metrology Techniques
- Pulsed Power Technology Applications
- Electromagnetic Compatibility and Noise Suppression
- Ionosphere and magnetosphere dynamics
- Advanced Computational Techniques and Applications
- Quantum-Dot Cellular Automata
- Power Systems Fault Detection
- Vacuum and Plasma Arcs
- Educational Technology and Assessment
- Earthquake Detection and Analysis
Wuhan University
2015-2025
Southwest University
2023-2025
China Railway Group (China)
2025
Beijing Automotive Group (China)
2024
Zoomlion (China)
2024
Hubei Zhongshan Hospital
2024
Suzhou University of Science and Technology
2024
Fujian Electric Power Survey & Design Institute
2024
Hainan Medical University
2024
Yunnan University
2024
In this paper, we experimentally demonstrate the first 110-Gb/s multi-band superchannel coherent optical orthogonal frequency-division multiplexing based on offset quadrature amplitude modulation (OFDM/OQAM) system. Unlike conventional band-multiplexed OFDM system, no timing or frequency synchronization is required for OFDM/OQAM We further investigate influence of guard band, and find that very trivial band spacing (< 20 MHz) without any sensitivity performance spectral efficiency...
Soil electrical resistivity is an important parameter in grounding system design. In this paper, laboratory measurements of soil are carried out using a box. Two measurement methods used and compared, namely, two-electrode method four-electrode method. The indicate that the results reported by affected contact resistance between electrodes soil, which increases as water content increases. Moreover, was observed to decrease test signal frequency Using 50-Hz ac signal, effects content,...
Single-channel 112-Gb/s PAM-4 transmission based on low-cost intensity modulation and direct detection (IM/DD) optics is experimentally demonstrated over 1-km standard single-mode fiber. By employing a digital precompensation, duobinary encode/decoding with signal 7-level training-sequence-aided least mean square (TS-LMS) algorithm, we successfully achieve receiver sensitivity of about -2 dBm 7% overhead HD-FEC. Chirp management applied at the transmitter side to extend reach 1 km for 1500...
Early diagnosis of breast cancer has always been a difficult clinical challenge. We developed deep-learning model EDL-BC to discriminate early with ultrasound (US) benign findings. This study aimed investigate how the could help radiologists improve detection rate while reducing misdiagnosis.In this retrospective, multicentre cohort study, we an ensemble deep learning called based on convolutional neural networks. The was trained and internally validated B-mode color Doppler US image 7955...
In coherent optical communication systems, the transmitter usually employs an in-phase and quadrature (IQ) modulator to perform electrical-to-optical up-conversion. However, some environmental factors, such as temperature mechanical stress, strongly influence stability. To stabilize quality of transmitted signal, auto bias control (ABC) is essential keep in optimum bias. this paper, we present a novel method ABC for orthogonal frequency division multiplexing (O-OFDM) signal. proposed scheme,...
In this paper, we propose a novel approach to simultaneously receive multi-band 100-Gb/s direct-detection optical signal with only one polarization and conventional 40-GHz photodiode. The modulation format of orthogonal frequency-division multiplexing based on offset quadrature amplitude (OFDM/OQAM) is selected provide spectrum high side-lobe suppression ratio, which can effectively reduce the electrical sub-band frequency interference. whole OFDM/OQAM comprised 6 sub-bands 16- 32-QAM...
This paper presents the induced voltage measured at terminal of a 10 kV distribution line when triggered lightning taking place distance 40 m. It is shown that waveforms exhibit three components including slow increase preceding initial negative peak, following rapid polarity reversal and attenuated oscillations. The waveform parameters are defined in this paper. observed peak value ranges from -47.1 to -7.5 kV. positive 5.3 20.9 kV, 12.8 63.2 test results show generated by nearby generally...
In this paper, we propose a constellation reshaping method for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. The key idea of the proposed is to generate reshaped quadrature amplitude modulation (R-QAM) constellation, which minimum distance R-QAM same as that traditional QAM constellation. When novel employed with partial transmit sequence (PTS) and selected mapping (SLM) methods OFDM systems, called R-PTS R-SLM respectively, mean...
A magnetic field and electric current meter is proposed based on a differential twin receiving microfiber coupler (MC) sensor. The sensor fabricated by bonding MC an aluminium (Al) wire together. With the small diameter of several micrometers, output power at each port shows high sensitivity to distortion Al from Lorentz force induced or thermal expansion caused current. ratio difference sum signals two ports can be used eliminate variation in sensitivity. Using our sensor, we measured...
In the summer of 2013, a three-dimensional (3D)-based Foshan Total Lightning Location System (FTLLS), embedded with differential time arrival (DTOA) techniques, was installed and started its operation in Foshan, Guangdong Province, China. this paper, geographical distribution set-up information FTLLS, estimated locating errors results, as well initial results are presented. FTLLS consists nine sub-stations that receive electromagnetic waves associated lightning discharges locates VLF/LF (200...
Insulators are one of the widely used important devices in power systems, and proposing an accurate effective online monitoring method for insulator defects is urgent need intelligent informative systems. We propose a multiscale residual neural network surface breakage recognition. The proposed convolution filter uses three different size kernels filtering, performs feature maps fusion, which can enrich spatial correlation channel maps. investigated effects learning rates on model...