Liang Zou
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View article: Hybrid fitting method for dynamic responses of mechanical systems
Hybrid fitting method for dynamic responses of mechanical systems Open
For linear system, vibration response can be obtained by working load and vibration transfer function. However, for nonlinear systems, the vibration transfer function is variable, so the error of the existing methods is obvious. In order t…
View article: High-efficiency bulk photovoltaic effect with ferroelectric-increased shift current
High-efficiency bulk photovoltaic effect with ferroelectric-increased shift current Open
Bulk photovoltaic (BPV) effect primarily stems from shift currents in symmetry-breaking materials, providing the potential to smash the Shockley-Queisser limit that constrains the performance of conventional p-n junctions-based solar cells…
View article: Investigation of the Impact of XLPE Cable Ageing on Impedance Mismatch Characteristics and Unbalanced Behaviour in Hybrid Operation Systems
Investigation of the Impact of XLPE Cable Ageing on Impedance Mismatch Characteristics and Unbalanced Behaviour in Hybrid Operation Systems Open
In the Hainan–Guangdong interconnection project, oil leakage in oil‐filled cables required replacing the faulty core with a single core from a three‐core cross‐linked polyethylene (XLPE) cable, leading to mixed operation of XLPE and oil‐fi…
View article: Efficacy of paravertebral transcutaneous electrical nerve stimulation in perioperative analgesia and enhanced recovery after thoracoscopic lobectomy: a randomized, sham-controlled clinical trial
Efficacy of paravertebral transcutaneous electrical nerve stimulation in perioperative analgesia and enhanced recovery after thoracoscopic lobectomy: a randomized, sham-controlled clinical trial Open
Purpose Managing postoperative pain remains a significant challenge in video-assisted thoracoscopic surgery (VATS) lobectomy, where inadequate analgesia impedes recovery and increases chronic pain risk. Transcutaneous electrical nerve stim…
View article: Microscopic Characterization of Radiation Resistance of Epoxy Resin Enhanced with Graphene Quantum Dots and Molecular Simulation
Microscopic Characterization of Radiation Resistance of Epoxy Resin Enhanced with Graphene Quantum Dots and Molecular Simulation Open
With the development of the new energy industry in high-altitude regions, epoxy resin insulating materials in electrical equipment face severe challenges from prolonged exposure to strong radiation environments. Strong ultraviolet irradiat…
View article: Influence of Moisture Invasion on the Deterioration of Epoxy Resin Performance, and Modification and Enhancement Methods
Influence of Moisture Invasion on the Deterioration of Epoxy Resin Performance, and Modification and Enhancement Methods Open
In high-humidity environments, the epoxy resin solid insulation materials of high-frequency transformers are prone to aging, resulting in varying degrees of deterioration in the material’s dielectric properties and other aspects. To enhanc…
View article: Molecular Design and Virtual Screening of EZH2 Inhibitors Based on GRU Networks
Molecular Design and Virtual Screening of EZH2 Inhibitors Based on GRU Networks Open
EZH2 (Enhancer of Zeste Homolog 2) is a key epigenetic regulator implicated in various cancers, making the discovery of potent and selective EZH2 inhibitors a significant goal in drug development. Deep learning methods applied to chemistry…
View article: Aging Mechanisms and Performance Degradation of XLPE Submarine Cable Insulation Under Marine Major Anion Effects
Aging Mechanisms and Performance Degradation of XLPE Submarine Cable Insulation Under Marine Major Anion Effects Open
When the outer sheath of submarine cables is damaged, the degradation of cross-linked polyethylene (XLPE) insulation by anions in seawater becomes a critical factor affecting cable service life. This study investigates 500 kV three-core XL…
View article: Effects of Pulse Ion Source Arc Voltage on the Structure and Friction Properties of Ta-C Thin Films on NBR Surface
Effects of Pulse Ion Source Arc Voltage on the Structure and Friction Properties of Ta-C Thin Films on NBR Surface Open
Nitrile rubber (NBR) is prone to adhesion and hysteresis deformation when in contact with hard materials, leading to wear failure. To mitigate this issue, the deposition of diamond-like carbon (DLC) films onto the rubber surface is a commo…
View article: Impact of Component Structure on Vibration and Noise of Converter Transformers Under Harmonic Excitation
Impact of Component Structure on Vibration and Noise of Converter Transformers Under Harmonic Excitation Open
The internal component structure of the converter transformer plays an extremely important role in the generation and propagation of vibration noise. In order to comprehensively reveal the influence of the component structure on the vibrat…
View article: The Critical Saturation Magnetization Properties of Nanocrystalline Alloy Under Rectangular Wave Excitation with Adjustable Duty Cycle
The Critical Saturation Magnetization Properties of Nanocrystalline Alloy Under Rectangular Wave Excitation with Adjustable Duty Cycle Open
High-frequency transformers are subject to excitation with a changing duty cycle during operation. Due to magnetic relaxation, the duty cycle of the rectangular wave affects the magnetization time of nanocrystalline alloy for the core mate…
View article: Impact of Different Fixing Methods on the Vibration Characteristics of Single-Phase Transformers
Impact of Different Fixing Methods on the Vibration Characteristics of Single-Phase Transformers Open
The vibration problem of single-phase transformers can threaten the stable operation of equipment, and long-term severe vibration may also cause mechanical fatigue or even damage to the equipment. Among these serious factors, the internal …
View article: Mechanistic Study of Atomic Oxygen Erosion on Polyimide Under Electric Fields: A Molecular Dynamics and Density Functional Theory Approach
Mechanistic Study of Atomic Oxygen Erosion on Polyimide Under Electric Fields: A Molecular Dynamics and Density Functional Theory Approach Open
Polyimide (PI) is widely used in aerospace applications due to its superior insulating properties. However, the high concentration of atomic oxygen (AO) in low Earth orbit leads to significant performance degradation in PI, and the underly…
View article: Research progress on topology and energy management of fuel cell hybrid power ships
Research progress on topology and energy management of fuel cell hybrid power ships Open
With the increasing awareness of environmental protection, the maritime industry is moving towards green and low-carbon development. Fuel cells, due to their pollution-free and high-efficiency characteristics, are one of the key technologi…
View article: An energy management method for combined load forecasting of fuel cell ships
An energy management method for combined load forecasting of fuel cell ships Open
The article proposes an energy management method (EMM) for fuel cell ships, which consists of two parts: load forecasting (LF) and real-time optimized scheduling (RTOS). LF is composed of Long Short-Term Memory neural networks, which are c…
View article: Mechanisms of Atomic Oxygen Erosion in Fluorinated Polyimides Investigated by Molecular Dynamics Simulations
Mechanisms of Atomic Oxygen Erosion in Fluorinated Polyimides Investigated by Molecular Dynamics Simulations Open
Traditional polyimides have highly conjugated structures, causing significant coloration under visible light. Fluorinated colorless polyimides, known for their light weight and excellent optical properties, are considered ideal for future …
View article: Prediction of Ceiling Temperature Rise in High-Voltage Cable Trenches with Identification of Ignition Points
Prediction of Ceiling Temperature Rise in High-Voltage Cable Trenches with Identification of Ignition Points Open
Early detection of cable trench fires by locating the fire source in a timely manner can reduce the risk of fire. However, existing fire warning methods have low accuracy, long calculation times and difficulty coping with sudden fire situa…
View article: Investigation of Partial Discharge Transformation Characteristics in Polyimide (PI) Insulations under High-Frequency Electric Stress
Investigation of Partial Discharge Transformation Characteristics in Polyimide (PI) Insulations under High-Frequency Electric Stress Open
This research delves into the primary issue of polyimide (PI) insulation failures in high-frequency power transformers (HFPTs) by scrutinizing partial discharge development under high-frequency electrical stress. This study employs an expe…
View article: Research on the influence mechanism of harmonic components on the noise distribution characteristics of converter transformers
Research on the influence mechanism of harmonic components on the noise distribution characteristics of converter transformers Open
In order to elucidate the sound source characteristics during the noise propagation process of converter transformers, a series of experimental studies were conducted based on finite element simulation and proportional prototype design of …
View article: Mechanism Analysis and Potential Applications of Atomic Oxygen Erosion Protection for Kapton-Type Polyimide Based on Molecular Dynamics Simulations
Mechanism Analysis and Potential Applications of Atomic Oxygen Erosion Protection for Kapton-Type Polyimide Based on Molecular Dynamics Simulations Open
Polyimide (PI) is widely used in aerospace applications due to its excellent properties. However, the high concentration of atomic oxygen (AO) in low-earth orbit (LEO) significantly degrades its performance. This study employs reactive mol…
View article: Energy-Management Strategy of Battery Energy Storage Systems in DC Microgrids: A Distributed Fuzzy Output Consensus Control Considering Multiple Cyber Attacks
Energy-Management Strategy of Battery Energy Storage Systems in DC Microgrids: A Distributed Fuzzy Output Consensus Control Considering Multiple Cyber Attacks Open
Distributed renewable sources are one of the most promising contributors for DC microgrids to reduce carbon emission and fuel consumption. Although the battery energy storage system (BESS) is widely applied to compensate the power imbalanc…
View article: A Convolutional Neural Network Based on Attention Mechanism for Designing Vibration Similarity Models of Converter Transformers
A Convolutional Neural Network Based on Attention Mechanism for Designing Vibration Similarity Models of Converter Transformers Open
A vibration scale training model for converter transformers is proposed by combining attention modules with convolutional neural networks to solve the nonlinear problem of converter transformers in similar processes. Firstly, according to …