A5103241682- Differential Equations and Numerical Methods
- Advanced Mathematical Modeling in Engineering
- Differential Equations and Boundary Problems
- Advanced Numerical Methods in Computational Mathematics
- Stability and Controllability of Differential Equations
- Numerical methods in inverse problems
- Stability and Control of Uncertain Systems
- Radio Frequency Integrated Circuit Design
- Vibration and Dynamic Analysis
- Radiative Heat Transfer Studies
- Advancements in Semiconductor Devices and Circuit Design
- Nonlinear Differential Equations Analysis
- Mathematical and Theoretical Epidemiology and Ecology Models
- Analog and Mixed-Signal Circuit Design
- Neural Networks Stability and Synchronization
- Electrochemical Analysis and Applications
- Fuzzy Systems and Optimization
- Electromagnetic Compatibility and Noise Suppression
- Contact Mechanics and Variational Inequalities
- Heat Transfer and Optimization
- Advancements in PLL and VCO Technologies
- Particle physics theoretical and experimental studies
- Topology Optimization in Engineering
- Control and Stability of Dynamical Systems
- Model Reduction and Neural Networks
Qingdao Agricultural University
2008-2024
Tsinghua University
2013-2024
Zhejiang Sci-Tech University
2024
Istituto Nazionale di Fisica Nucleare, Sezione di Milano
2023
Institute of Microelectronics
2013
Qingdao University
2010-2011
Southeast University
2006
Abstract Insufficient and imbalanced samples pose a significant challenge in bearing fault diagnosis, leading to low diagnosis accuracy. However, the characteristics of vibration signals are weak difficult extract when faults occur early stage. This paper proposes an effective method that addresses small sample problems under noise interference. First, number faulty form 1D is increased mainly by sliding split sampling method. The preprocessed data used create 2D time–frequency diagrams...
This article deals with the determination of source in 1-D convection–diffusion problem. A method which based on least squares support vector machines is proposed. The approximate solutions consist two parts. first part a known function that satisfies initial/boundary conditions. other combination Gauss Kernel functions regression coefficients, not affected from According to principle regression, problem can be transformed into quadratic programming. has been tested four examples and yielded...
This paper presents a novel DC offset calibration method for the zero-IF (intermediate frequency) receiver that removes PGA-gain-correlated residue. The conventional is usually based on classic input/output referred model, in which IF programmable gain amplifiers (PGAs) have sources varies lot with different settings. Consequently, needs to generate code at each step and requires huge look up table (LUT) store values. new model non-correlated, by analyzing two types of commonly-used PGA....
In this paper, we present a new algorithm to solve two-dimensional parabolic inverse problem with source parameter, which appears in many physical phenomena. A linearized compact difference scheme for is constructed using the finite method. The discretization accuracy second-order time and fourth-order space. We obtain unique solvability an alternating direction implicit scheme. results of numerical experiments are presented demonstrate algorithm.
This article has been retracted by the publisher.
In this paper, the stability problem of neutral system with interval time-varying delays is investigated. The are assumed to belong different intervals. Based on Lyapunov method, by using a new Lyapunov-Krasovskii functional which includes information both lower and upper bounds delays, criterion derived in terms linear matrix inequality (LMI). This much less conservative than existing ones that it contains fewer variables.
Abstract In this article, we study a sequence of finite difference approximate solutions to parabolic system, which models two dissimilar rods that each rod is fixed at one end and free expand or contact the other end. A scheme derived by method reduction order on nonuniform mesh. The unique solvability, unconditional stability, convergence are proved. in both time space. iterative algorithm for also discussed. numerical example presented demonstrate theoretical results. © 2006 Wiley...