A5102788973- Chaos-based Image/Signal Encryption
- Advanced Steganography and Watermarking Techniques
- Gas Sensing Nanomaterials and Sensors
- Digital Media Forensic Detection
- 2D Materials and Applications
- Electrochemical Analysis and Applications
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Advanced Computational Techniques and Applications
- Traffic control and management
- Evacuation and Crowd Dynamics
- Speech and Audio Processing
- Advanced Algorithms and Applications
- Video Surveillance and Tracking Methods
- Luminescence Properties of Advanced Materials
- Glass properties and applications
- Advanced Neural Network Applications
- Traffic Prediction and Management Techniques
- Image and Video Stabilization
- Nonlinear Dynamics and Pattern Formation
- Tourism, Volunteerism, and Development
- Digital and Cyber Forensics
- Biometric Identification and Security
- Optical Wireless Communication Technologies
- Advanced Adaptive Filtering Techniques
Dalian Maritime University
2024
Chinese PLA General Hospital
2015-2024
Southwest University
2009-2023
Changchun University of Science and Technology
2023
Shandong University of Finance and Economics
2013-2021
Anhui University
2018
Harbin Institute of Technology
2008-2013
Georgia Institute of Technology
2007
Oil-immersed power transformers generate characteristic gases after failure,Therefore, it is necessary to analyse and monitor the soluble in transformer oil samples. In this study, DFT calculation method was used study adsorption properties of H2, CO, C2H2, C2H4 on both intrinsic MoTe2 Rh-doped films. order characteristics, paper first obtains most stable monolayer model through modelling computational analysis different doping sites, then, these material surface studied by analysing energy,...
Dissolved gas analysis (DGA) is the most commonly used transformer fault diagnosis technology at present. In this paper, according to method of first principles density function theory (DFT), gas-sensitive mechanisms four oil-soluble characteristic gases (H2, CO, C2H2, C2H4) on intrinsic SnS2 and Cr3-SnS2 were studied. The adsorption energy electron transfer calculated, states, bands, recovery times analyzed. It was concluded that H2 C2H4 physisorbed monolayer, while CO C2H2 chemisorbed....
Er3+/Yb3+ co-doped tellurite glass is prepared by conventional melt-quenching method. The thermal and optical properties of the are investigated for temperature sensing. Judd-Ofelt theory applied spectral analysis obtained intensity parameters (Ω2 = 6.48 × 10−20 cm2, Ω4 1.82 Ω6 1.27 cm2) used to estimate spectroscopic Er3+ ions in glass. upconversion (UC) luminescence under laser diode (LD) excitation at 976 nm. absolute quantum yield UC determined be 0.0049% when pump power density 10...
The BP neural network model is a hot issue in recent academic research, and it has been successfully applied to many other fields, but few researchers apply the field of automobile insurance. main method that used prediction total claim amount insurance generalized linear model, where could provide different approach estimate loss. This paper uses genetic algorithm optimize structure at first, calculation speed significantly improved. At same time, by considering overfitting problem, an...
The complex kernel adaptive filters (CKAFs) developed in reproducing Hilbert space (RKHS) improve the performance of linear filters, but result large burdens computation and memory. To address these issues, a novel random Fourier features mapping (CRFFM) is proposed to approximate kernel-induced by applying complexification real RKHSs, thus projects complex-valued data from original into fixed-dimensional (RFFS). combat non-Gaussian noises, Cauchy loss function presented, recursive (CRFFRCC)...
We describe a system for large-scale audiovisual translation and dubbing, which translates videos from one language to another. The source language's speech content is transcribed text, translated, automatically synthesized into target using the original speaker's voice. visual translated by synthesizing lip movements speaker match audio, creating seamless experience in language. audio subsystems each contain generic synthesis model trained on thousands of hours data corresponding domain....
针对目前基于数字微镜(Digital Micromirror Device,DMD)的光谱模拟中,光谱模拟单元具有不同偏态性质且存在非线性调制等特点,提出了一种适用于多种色温调制的基于模糊PID控制的恒星光谱模拟方法。构造了DMD工作矩阵、光谱调制权重矩阵、光谱分布函数矩阵以及目标光谱矩阵,建立了基于DMD的光谱模拟数学模型;然后,研究了基于遗传算法优化BP神经网络的光谱分布函数拟合算法,在400~800 nm的峰值波长内实现了光谱分布函数拟合;提出了一种基于模糊PID控制的光谱模拟算法,选择模糊集合与隶属度函数,制定了模糊推理以及解模糊化规则。仿真分析了模糊PID控制器性能,结果表明与PID控制相比,模糊PID控制的超调量减小90.7%,调节时间缩短了69.4%。最后,实验验证了3 000~11 000 K色温光谱分布曲线的模拟精度,结果表明:光谱模拟误差优于±4.21%;相较于PID控制,模糊PID控制在3 000,6 500以及11 K色温的最大光谱模拟精度分别提高了2.31倍,1.71倍和2.02倍。所提出的方法可以进一步提升光谱模拟精度,为高精度星敏感器的地面标定提供理论与技术基础。
For the problem of insufficient small target detection ability existing network model, a vehicle method based on improved YOLO V3 model is proposed in article. The improvement algorithm can effectively improve vehicles aerial photography. optimization and adjustment anchor box residual module have effect algorithm. Furthermore, introduction rectangular prediction frame with orientation angles into this article positioning efficiency algorithm, greatly reduce wrong missed provide ideas for...
Information hiding is an important technique for information security, which wildly studied by researchers. Recently embedding methods are proposed in spatial, frequency and other domains. After investigating previous literatures, we find that there still room performance improvement. Inspired some propose a new method (Modulus Calculations on Prime Number Algorithm, MOPNA) secret data into cover-images. The main idea of MOPNA confidential paired cover-pixels with modulus calculation based...
The hyporheic zone is a place where river water and groundwater mutually exchange mix. It plays an important role in protecting the ecology quality of groundwater. In order to study geochemical characteristics lateral ground water, temperature, dissolved oxygen, pH, electrical conductivity were measured automatically at Maanxi Chongqing. concentrations ions elements sediment within also analyzed. results showed that hydrochemical species was HCO3-Ca·Mg. Affected by infiltration coefficient...
Purpose In an intelligent transportation system (for short, ITS) environment, a vehicle’s motion is affected by the information in large scale. The purpose of this paper to study integration effect multiple vehicles’ delayed velocities on traffic flow. Design/methodology/approach This constructed new car-following model analyzed linear and nonlinear perturbation method theoretically also verified simulation. Findings It found out that preceding affect stability flow importantly, three should...