A5100373400- Machine Fault Diagnosis Techniques
- Smart Grid Security and Resilience
- Iterative Learning Control Systems
- Robotic Mechanisms and Dynamics
- Fault Detection and Control Systems
- Advanced Control Systems Optimization
- Carbon dioxide utilization in catalysis
- Engineering Diagnostics and Reliability
- Gear and Bearing Dynamics Analysis
- CO2 Reduction Techniques and Catalysts
- Power Systems and Renewable Energy
- Microgrid Control and Optimization
- Adaptive Control of Nonlinear Systems
- Security and Verification in Computing
- Grey System Theory Applications
- Stability and Control of Uncertain Systems
- Frequency Control in Power Systems
- Distributed systems and fault tolerance
- Ionic liquids properties and applications
- Advanced Image and Video Retrieval Techniques
- Advanced Algorithms and Applications
- Security in Wireless Sensor Networks
- Distributed Control Multi-Agent Systems
- Piezoelectric Actuators and Control
- Reliability and Maintenance Optimization
Dalian University
2021-2024
Dalian University of Technology
2010-2024
Yanshan University
2010-2024
Guangzhou Automobile Group (China)
2024
Anhui Jiyuan Software
2024
Xi'an Jiaotong University
2022-2023
Anqing Normal University
2020-2022
Shandong University of Science and Technology
2021
China Electric Power Research Institute
2021
North China Electric Power University
2021
From the viewpoint of abundance, economy, non-toxicity, and renewability, CO2 is ideal C1 synthon in organic synthetic chemistry. Utilizing for chemical conversion to synthesize highly value-added fine chemicals great significance. Organic electrochemical synthesis that employs electrons as redox reagents achieve selective oxidation or reduction has attracted much attention past decades. In this review, recent advances carboxylations using from perspective will be summarized. We give an...
Direct electrocarboxylation of various N-acylimines with atmospheric CO2 is achieved in an undivided cell under mild conditions, affording substituted α-amino acids yields 62–95%. This reaction conducted high efficiency using triethanolamine as external reductant nonsacrificial anode and can be facilely performed on gram scale. Preliminary mechanistic studies including cyclic voltammetry control experiments support N-radical carbanion the key intermediate.
As the output from wind power generation is intermittent in nature, making "dependable" critical for seamless integration of generation. One most favorable solutions incorporating energy storage system (ESS) with farms to establish a wind-energy hybrid system. Since it requires capital investment ESS installation, important estimate appropriate capacity and charging/discharging rate desired applications. In this paper, fluctuation feature analyzed both time domain frequency domain. The...
This paper considers secure design in distributed control systems to ensure the detection of stealthy integrity attacks. Distributed consist many heterogeneous components, such as sensors, controllers, and actuators may contain several independent agents. The presence components agents a system increases attack surfaces for potential adversaries, making vulnerable malicious behavior. goal this is consider deterministic To do this, we leverage existing results which relate fixed set nodes...
Electrocarboxylation of the C(sp3)–O bond in 1,3-oxazolidin-2-ones with CO2 to achieve β-amino acids is developed. The C–O substrates can be selectively cleaved via single electron transfer on surface a cathode or through CO2• – intermediate under additive-free conditions. A great diversity obtained moderate excellent yield and readily converted various biologically active compounds.
Abstract Tire is a vital component of any vehicle, and the surface characteristics have considerable impact on overall performance. Given limitations sensor's scanning angle, it imperative that fragments t ire be stitched together to reconstruct complete tire model. Notably, smoothness surface's geometric structure subtle differences in small-scale features resulted inaccurate stitching mismatches. This paper proposes an approach based Multi-Scale Geometric Transformer (MSGT) for high...
Electroreductive ring-opening carboxylation of cycloketone oxime esters with atmospheric carbon dioxide is reported. This reaction proceeded under simple constant current conditions in an undivided cell using glassy as the cathode and magnesium sacrificial anode, providing substituted γ- δ-cyanocarboxylic acids moderate to good yields. Electrochemically generated cyanoalkyl radicals anion are proposed key intermediates.
We consider the design and analysis of robust distributed control systems (DCSs) to ensure detection integrity attacks. DCSs are often managed by independent agents implemented using a diverse set sensors controllers. However, heterogeneous nature along with their scale leave such vulnerable adversarial behavior. To mitigate this reality, we provide tools that allow operators prevent zero dynamics attacks when as many p corrupted. Such ensures attack detectability in deterministic while...
Rotating machinery vibration signals are nonstationary and nonlinear under complicated operating conditions. It is meaningful to extract optimal features from raw signal provide accurate fault diagnosis results. In order resolve the problem, an enhancement deep feature extraction method based on Gaussian radial basis kernel function autoencoder (AE) proposed. Firstly, employed enhance learning capability, a new AE designed termed (KAE). Subsequently, neural network constructed with one KAE...
With the coming of artificial intelligence and era big data, convolutional neural network (CNN) has become one research hotspots in many scientific fields. However, there exist serious edge information loss problems transmission process CNN. Therefore, order to suppress important during process, new methods are proposed which use singular value decomposition (SVD) algorithm based on phase space reconstruction analyze bearing vibration signal. Singular values regarded as features for...
With the intention of advancing our research on diverse C-20 derivatives camptothecin (CPT),
A trend prediction method based on the Pchip‐EEMD‐GM(1,1) to predict remaining useful life (RUL) of rolling bearings was proposed in this paper. Firstly, dimension extracted features reduced by KPCA dimensionality reduction method, and WPHM model parameters were estimated via kernel principal components. Secondly, hazard rate calculated at each time, Pchip interpolation used obtain uniformly spaced data series. Then main signal obtained through EEMD fit GM(1,1) model. Finally, GM (1,1)...
To explore the stability of gallium arsenide (GaAs) photoconductive semiconductor switches (PCSSs) with avalanche multiplication mechanism, an interdigitated electrode structure is presented at 1-kHz excitation by a femtosecond laser. The influences optical and bias electric field on switching characteristics are investigated. transient current density distribution demonstrated Monte Carlo simulation. repetitive indicates that mechanism could persist stably repetition rate operation this...
Abstract A novel symmetric parallel mechanism 6RPS with multi-redundant actuations is proposed in this paper, which possesses two rotational and one translational degrees-of-freedom. Motion constraint screw systems of are established then character the freedom analyzed. Transmission performance indexes established, dimension optimization operated by considering distribution transmission performance. Whole high-performance workspace analyzed optimal dimension. interference condition studied,...