A5069355631- Advanced Sensor and Control Systems
- Non-Destructive Testing Techniques
- Magnetic Field Sensors Techniques
- Geophysics and Sensor Technology
- Inertial Sensor and Navigation
- Advanced Measurement and Detection Methods
- Vibration and Dynamic Analysis
- Robotics and Sensor-Based Localization
- Geophysical Methods and Applications
- Advanced Algorithms and Applications
- Advanced Numerical Methods in Computational Mathematics
- Industrial Technology and Control Systems
- Gas Sensing Nanomaterials and Sensors
- Lubricants and Their Additives
- Magneto-Optical Properties and Applications
- Optimization and Search Problems
- Numerical methods in engineering
- Advanced MEMS and NEMS Technologies
- Water Quality Monitoring and Analysis
- GNSS positioning and interference
- Advanced Manufacturing and Logistics Optimization
- Image and Video Stabilization
- Sensor Technology and Measurement Systems
- Geoscience and Mining Technology
- Advanced Image and Video Retrieval Techniques
North University of China
2009-2025
University of Chinese Academy of Sciences
2024
Hebei University of Technology
2008-2024
Dokkyo University
2022
Yanshan University
2021
Northeastern University
2021
Dalian University of Technology
2010-2019
Hefei University of Technology
2015-2019
Beijing Computational Science Research Center
2018
Chifeng University
2012-2018
Extensive research papers of three‐dimensional computational techniques are widely used for the investigation human brain pathophysiology. Eddy current analyzing could provide an indication conductivity change within a biological body. A significant obstacle to trend analyses is development numerically stable and efficiency‐finite element scheme that performs well at low frequency does not require large number degrees freedom. Here, custom finite method (FEM) solver based on edge elements...
In this article, the problem of scheduling a set jobs on parallel batch machines with arbitrary capacities is considered. The have identical processing time, non-identical sizes and unequal weights. After being processed, are delivered to customers by vehicles. objective minimize total weighted delivery time jobs. Two heuristic algorithms an algorithm based ant colony optimization (ACO) presented address problem. Considering relationship between batches, three-level candidate list designed...
<title>Abstract</title> Lubricating oil contains abundant information reflecting equipment status. This study proposes a nested inductive sensor to address the need for wear particle detection in lubricants. A mathematical model of was established based on electromagnetic induction principle. From perspective coil mutual inductance, sensitivity advantage configuration analyzed. Transient simulations validated theoretical findings. Experimental verification using prototype system successfully...
The metal wear debris in mechanical transmission can feedback the characteristics of equipment failure, and its online monitoring efficacy directly affects operating performance equipment. Specific to need for fault detection system, a double-coil reverse excitation method is adopted provide magnetic field environment testing lubricating oil circuit system. Based on distribution model single-coil solenoids, coupling reverse-symmetric established. On basis detecting coils obtain signals...
This article introduces iSurface, the first-of-its-kind self-powered reconfigurable intelligent surface (RIS) that can engineer ambient wireless propagations in environment via a RF layer. Additionally, it charge multiple devices close to power transfer enabled by magnetic resonance We develop coupling distribution framework allows flexible and on-demand spots with flow paths over 2D 3D resonator surfaces RIS units wirelessly devices. design source extender resonators validate iSurface...
We propose a theoretical method of detection angular velocity based on two-mode mechanical resonator placed rotating platform. The Coriolis force induced by rotation provides the coupling between two intrinsic modes, which oscillate along orthogonal directions perpendicular to axis According relationship frequencies normal modes and velocity, platform can be deduced detecting modes. It is also shown that our applicable high velocities protect against thermal drift in case degenerate
The virtual synchronous generator (VSG) has been widely used to improve the system inertia and damping in renewable energy generation system. However, in-depth understanding of VSG’s stability under disturbances on different control parameters is lacked. In order solve problem, small-signal model single-VSG established at first. influences key are analyzed by using eigenvalue analysis method detail. On this basis, a novel optimization strategy for proposed based Particle Swarm Optimization...
摘要: 油液中的磨粒可反映发动机等设备的磨损状况,为实现油液金属磨粒的在线监测,基于电磁感应原理建立了三线圈传感器的数学模型,通过仿真分析传感器最佳结构参数(内径、间隙、宽度等),利用相干解调模型提取磨粒信号,并分析磨粒信号产生原理。系统采用多层屏蔽结构,可有效减少外部的磁场干扰,设计的传感器检测系统接入风机齿轮箱油路进行相关试验。试验结果表明,本系统可对磨粒信号进行有效提取,且磨粒信号同时受磨粒速度及磨粒尺寸的影响,可在流量为1~18 L/min的工况下实现187 μm铁磁性金属磨粒和578 μm非铁磁性金属磨粒的检测,后续可结合BP神经网络对油液金属磨粒各特征参数进行自适应判别,对今后油液磨粒在线监测设备的开发提供了理论支撑及技术支持,为机械设备故障诊断提供重要依据。
Specific to the full-range detection demand for magnetic anomaly targets such as metal in shallow strata, transportation pipelines, and mined-out regions during geophysical survey, based on transient electromagnetic method, using Gauss inverse Laplace transform, a excitation model medium-shallow strata is proposed; by adjustment of electrical parameters frequency, amplitude, phase current, spatial multi-mode field formed, an array device developed, distribution established. The...
In this paper, we report on the influence of annealing treatment as-grown Ib-type diamond crystal under high pressure and temperature in a china-type cubic anvil high-pressure apparatus. Experiments are carried out at 7.0 GPa temperatures ranging from 1700 °C to 1900 for 1 h. Annealing shows that aggregation rate constant nitrogen atoms strongly depends morphology temperature. The remarkably increases with increase its value octahedral is much higher than annealed same colour obviously...
A hi-speed rotation angular rate sensor based on an electromagnetic induction signal is proposed to provide a possibility of wide range measurement high rates. An designed that works the principle electromagnetism (EM) induction. In addition zero-phase detection technique, this uses feedback magnetic coils in response rotating field. It solves challenge designing suitable for both low and The was examined accuracy simulation tests using rotary table. results show it capable measuring rates...
Aiming at the problem of failure global positioning system in satellite denied environment, and facing needs navigation indoor space, technology magnetic field vector have been studied. Based on geomagnetic matching technology, wavelet analysis method is used to estimate noise components statistical characteristics three-dimensional signal; combined with Kalman filtering algorithm, through estimating optimizing signal, an signal processing algorithm fusion established, realizing optimization...
A magnetic induction-based angular rate measurement method is proposed to address the need for internal of high-speed carriers. This relies on rotational periodicity fed back by field. Three coils aligned orthogonal one another are employed as feedback module that supplies information, physical characteristic contains periodic signals, which in turn reflect highly dynamic rotation carrier its accelerating process. The periodic, instantaneous start point extracted from signal using zero-phase...
Magnetohydrodynamic (MHD) heat shield system is a novel-concept thermal protection technique for hypersonic vehicles, which has been proved by lots of researchers with both numerical and experimental methods. Most neglect the Hall effect in their researches. However, reentry process, sometimes so significant that electric current distribution shock layer can be changed induced field. Consequently, Lorentz force as well Joule varied, thus efficiency MHD affected.In order to analyze influence...
The dyadic Green's function for an unbounded gyroelectric chiral medium is formulated in the Fourier domain cylindrical coordinates. After a triple integral of has been obtained, reduced by performing integration over transverse variable.
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