A5100631896- Image and Signal Denoising Methods
- Sparse and Compressive Sensing Techniques
- Simulation and Modeling Applications
- Advanced Image Fusion Techniques
- Fluid Dynamics and Turbulent Flows
- Polymer composites and self-healing
- Model Reduction and Neural Networks
- Aerodynamics and Acoustics in Jet Flows
- Aerospace Engineering and Energy Systems
- Hydraulic and Pneumatic Systems
- Acoustic Wave Phenomena Research
- Antenna Design and Analysis
- Manufacturing Process and Optimization
- Remote-Sensing Image Classification
- Vehicle Noise and Vibration Control
- Engineering Applied Research
- Spacecraft Dynamics and Control
- Nuclear Engineering Thermal-Hydraulics
- Advanced Numerical Analysis Techniques
- Image Retrieval and Classification Techniques
- Underwater Vehicles and Communication Systems
- Industrial Technology and Control Systems
- Ultra-Wideband Communications Technology
- Effects of Vibration on Health
- Image and Video Stabilization
Capital Medical University
2024
Beijing Chest Hospital
2024
General Motors (Poland)
2024
Shandong University
2022
Northwestern Polytechnical University
2009-2021
Tongji University
2020-2021
Integration Innovation (United States)
2019
China Aerodynamics Research and Development Center
2018
Shantou University
2014
Tianjin University
2013
<div class="section abstract"><div class="htmlview paragraph">Effective design of the lubrication path greatly influences durability any transmission system. However, it is experimentally impossible to estimate internal distribution automotive fluid (ATF) different parts system due its structural complexities. Hybrid vehicle systems usually consist types bearings (ball bearings, thrust roller etc.) in conjunction with gear systems. It a perennial challenge computationally...
<div class="section abstract"><div class="htmlview paragraph">Internal combustion engine (IC engine) vehicles are commonly used for transportation due to their versatility. Due this, efficiency in design process of IC engines is critical the industry. To assess performance capabilities an engine, thermal predictions utmost consequence. This study describes a computational method based on unsteady Reynolds-averaged Navier–Stokes equations that resolves gas–liquid interface examine...
A type of thermal-induced shape memory polymer was fabricated using a new epoxy resin-polybutadiene (PBEP) and bisphenol A-type cyanate ester in different mass ratios. Mechanical performance, thermal properties, behaviors were investigated systematically. This system presented good properties. The deformation recovery speed increased with the increase amount PBEP. maximum 0.0128 s−1, minimum value 0.0073 s−1. rate almost 100 %.
In this paper, we propose a SAR image texture segmentation method based on Contourlet transform and Support Vector Machine (SVM). The provides multi-resolution multidirectional representation of images, which can capture the directional information into subbands different scales directions. Thus, energy, standard deviation entropy defined are used to construct feature vector. SVM is performed as nonlinear classifier, decision tree strategy applied extend primitive binary multiclass SVM....
Elastomers with supreme mechanical adaptability where the increasing stress under continuous deformation is significantly inhibited within a large zone, are highly desired in many areas, such as artificial muscles, flexible and wearable electronics, soft artificial-intelligence robots. Such system comprises advantages of recoverable elasticity internal compensation to external work. To obtain elastomer adaptability, novel liquid crystal-based organosilicon (LCMQ) developed this work, which...
High-rate analog-to-digital converters (ADC's) are ubiquitous and critical components in advance signal processing, such as software radio ultra wideband (UWB) radar system. In this paper, we propose an alternative parallel sampling scheme, which is based on random projection, for ultra- analog to digital conversion. The rate by using proposed scheme can be reduced 1/m Nyquist where m the number of channel. Compared with conventional ADCs pulse code modulation (PCM), method makes sub-Nyquist...
Compressible cavity flows exist widely in aeronautical vehicles. The cost of the computational fluid dynamics to solve compressible is high. To address this issue, work, a novel reduced-order model (ROM) combining proper orthogonal decomposition (POD) with long short-term memory (LSTM) neural network named LSTM-ROM for predicting proposed. First, POD used provide low-dimensional subspace. Then, LSTM designed predict coefficients time evolution. results show that can accurately and capture...
Stack filters are a class of nonlinear for removing noise that is uncorrelated with signal. Their design formulated as high optimization problem. An improved immune memory clonal selection algorithm (IMCSA) suitable designing stack filters. But many algorithms have to face evaluation each candidate solution still takes the most computation complexity. By representing positive Boolean functions (PBF) in objective function, hybrid approach (software and hardware) calculation tasks has been...
Abstract The sound quality of the vehicle door can only be improved after testing has been manufactured. In this paper, a simulation model system closing collision is established, and test bench are designed. test, according to design characteristics structure situation that operating load cannot obtained directly. impact on simplified as concentrated loads when closed. reference points arranged near location loads, number twice loads. acceleration response at measured. frequency functions...
The flows past morphing cavities with different ramps of the leading wall and fixed ramp trailing were investigated direct numerical simulation dynamic mode decomposition to analyze oscillation phenomena. Based on analysis pressure signal sound level spectra obtained by simulation, an interesting fact is found that there a transition process between fluid-dynamic fluid-resonant phenomenon increasing angle wall: all modes belong in shallow baseline cavity; also when 10 deg; begin appear...
Abstract Wideband acoustic imaging, which combines compressed sensing (CS) and microphone arrays, is widely used for locating sources. However, the location results of this method are unstable, computational efficiency low. In work, in order to improve robustness reduce cost, a DCS-SOMP-SVD method, distributed using simultaneously orthogonal matching pursuit (DCS-SOMP) singular value decomposition (SVD) proposed. The performance studied through both simulation experiment. simulation,...
Handle driving forces are the input of automotive sliding door dynamic system and play an important role for ensuring a smooth closing process during manual mechanism design. It is to provide reliable accurate design analysis stage. This paper aims present improved K-medoids clustering algorithm investigate characteristic handle in manually based on experimental data. The includes two stages: observation-based stage traditional In all, 134 subjects have been recruited close lab force data...
From the middle of 20th century, CNC(Computer numerical control) machine tool has brought a revolutionary change to mechanical manufacturing industry. CNC is kind highly mechatronics product. It Characteristic high precision and productivity. Therefore it develops quite fast improves various quality products. speeds up development machinery In order meet requirements processing accuracy speed modern society, structure components have also become complicated. protect safety operators reduce...
I mage sparse representation plays a vital role in the process of image reconstruction. In recent years, several pioneering works suggested that signals/images could be represented sparsely with redundant dictionary. The selection components from dictionary directly influences precision reconstructed image, while scale computation al efficiency. This paper presents novel method for reconstruction, which decomposit es by concatenat ing bases and then reconstruct efficiently means Matching...
Cavity flow phenomena are encountered in many kinds of aviation vehicles. The flow‐induced noise can easily cause structure resonance and fatigue damages. Therefore, the study on mechanism effective control methods cavity very important to engineering applications. A new active method was proposed based deformable order mitigate noise. Large eddy simulation (LES) computational aeroacoustics (CAA) combined simulate a typical open results show first mode sound‐pressure level (SPL) tonal...
To solve the problem that current communication network training tools have limited functions and can’t effectively support electric power training, a new comprehensive simulation system is designed implemented. This paper introduces architecture of function each part. Then model principle explained. The key technologies 3D modeling, mechanism scenario automatic generation fault simulation. Finally, application introduced results show builds multi-functional tool to meet requirements...