A5100360012- Structural Health Monitoring Techniques
- Inertial Sensor and Navigation
- Gear and Bearing Dynamics Analysis
- Advanced Measurement and Metrology Techniques
- Optical measurement and interference techniques
- Lubricants and Their Additives
- Tribology and Wear Analysis
- Machine Fault Diagnosis Techniques
- Advanced machining processes and optimization
- Advanced MEMS and NEMS Technologies
- Adsorption and biosorption for pollutant removal
- Extraction and Separation Processes
- Recycling and Waste Management Techniques
- Advanced SAR Imaging Techniques
- Photonic and Optical Devices
- Advanced Welding Techniques Analysis
- Aluminum Alloys Composites Properties
- Mining and Gasification Technologies
- Target Tracking and Data Fusion in Sensor Networks
- Geochemistry and Elemental Analysis
- Air Traffic Management and Optimization
- Brucella: diagnosis, epidemiology, treatment
- ECG Monitoring and Analysis
- Icing and De-icing Technologies
- Advanced Sensor Technologies Research
Beijing Institute of Technology
2022-2025
Beijing Jiaotong University
2024
Ministry of Transport
2024
University of Science and Technology of China
2024
Chinese Academy of Sciences
2024
Beijing Advanced Sciences and Innovation Center
2023
Zhejiang Normal University
2023
North China Electric Power University
2019-2020
Second People’s Hospital of Huai’an
2019
Hunan University
2015
Compound faults diagnosis is a challenge for rotating machinery fault diagnosis. The vibration signals measured from gearboxes are usually complex, non-stationary, and nonlinear. When compound occur in gearbox, weak characteristic always submerged by the strong ones. Therefore, it difficult to detect using demodulating analysis of directly. key separate different collected signals. Aiming at that problem, new method proposed based on energy operator optimal resonance components. In this...
High-G accelerometers are a critical component for the accurate measurement of high-impact signals. Each high-G accelerometer must be frequency calibrated to ensure reliability its measurements. However, existing methods measuring response use sinusoidal shocks excitation, which is not only complex but also prone noise interference. To overcome this problem, we propose down-step method (DSRM) measure characteristics accelerometers. First, aluminum foam was selected as cushion material shock...
This article examines the application of artificial intelligence (AI) technologies to improve human-computer interaction (HCI) and foster cooperation in graphic design. Comprehensive study practical use reveal that AI integration significantly enhances HCI's effectiveness precision while introducing unique collaborative models The research employs natural language processing (NLP) deep learning HCI provide dialogue intelligent responses between humans machines by developing...
A novel method of interferometric synthetic aperture radar phase filtering that combines empirical mode decomposition (EMD) with Hölder exponent adjustment is presented in this letter. First, intrinsic functions (IMFs) different levels are obtained by decomposing the real and imaginary parts noisy complex formulation respectively employing EMD, which a totally data-driven without parameters to be selected. Then, we increase exponents every IMF appropriate extent according features signal...
This article presents a sensitivity calibration method aimed at minimizing installation, misalignment, and measurement errors, as well reducing the mutual coupling interference of sensitive axes accelerometer. The proposed is based on triaxial shock device consisting three orthogonal Hopkinson bars relies array laser Doppler velocimeters (LDVs). Based device, we propose using matrices to characterize experimental results show that this achieves an average relative error 3.2% maximum 8.1% in...
Abstract High-G accelerometers are critical for measuring high shock signals and must be calibrated to improve measurement accuracy. A laser Doppler velocimeter (LDV) is required calibrate a high-G accelerometer provide high-precision reference velocity. The LDV signal demodulated obtain the However, phase method susceptible noise interference, while conventional periodic distribution challenging demodulate severely affected by oscillations. We propose novel based on enhanced complementary...
This paper conducts research on storage testing and strapdown inertial navigation techniques base MEMS IMU. A multi-channel, high-sampling-rate, micro-miniature high-capacity device is designed to cope with the high-frequency high-precision for An optimized data computing method proposed collected sensor data. When transplanting algorithm, DSP functions are called make full use of hardware resources obtain higher update frequency. sine wave signal generated analyze gain accuracy ideal IMU...
With the advancement of terahertz technology, there is growing anticipation for 6G communication in international community, and gaining increasing attention. Nonetheless, waves possess strong directionality, leading to obstruction transmission signals. Consequently, achieving largeangle, directed poses a technical obstacle communication. Metasurfaces technology has great potential improve coverage performance networks, making it one most promising technologies this field. This paper...
In this thesis, firstly, based on the MATLAB/Simulink platform, simulation channel module for terahertz wave (300GHz) communication is established MPM modeled clear sky atmospheric channel,and Hamming (7,4) and RS (188,204) compilation code 2FSK, QPSK, 16QAM signal modulation demodulation, which are commonly used in traditional frequency bands, selected to form a model of system. By comparing BER analysis, it found that coding QPSK technology can achieve relatively low BER, but method has...
High-G accelerometers are essential for measuring high overloads during high-speed motion processes such as impact and penetration; however, noise can contaminate the calibration of accelerometers, leading to signal distortion quality degradation. We propose a denoising method that combines convolutional neural network (CNN) residual dense modules (RDMs) remove ensure accelerometer's accuracy effectively. First, short-time Fourier transform (STFT) is applied output high-G convert signals...
Purpose This paper aims to explore the leaf-surface wax as green lubricant additive and compare tribological properties between coastal inland waxes of same species plant. Design/methodology/approach The were extracted from leaves Robinia pseudoacacia cv. Idaho Populus nigra in areas, then compositions four kinds characterized using a gas chromatography–mass spectrometry. these additives base oil synthetic ester (SE) investigated by an MFT-R4000 reciprocating friction wear tester. As well...
Objective To understand the epidemiological and clinical characteristics of human brucellosis in Huai'an Jiangsu Province, to provide evidence for formulation prevention control measures. Methods Relevant data was collect through Infectious Disease Report Information Management System. Descriptive epidemiology (population distribution, time regional distribution) analysis were conducted City from 2013 2018. Results Totally 704 cases had been reported with an average annual...