A5100611946- Electric Motor Design and Analysis
- Magnetic Bearings and Levitation Dynamics
- Magnetic Properties and Applications
- Advanced battery technologies research
- Covalent Organic Framework Applications
- Advancements in Battery Materials
- Multilevel Inverters and Converters
- Supercapacitor Materials and Fabrication
- Electromagnetic Simulation and Numerical Methods
- Sensorless Control of Electric Motors
- Power Systems and Technologies
- Induction Heating and Inverter Technology
- Smart Grid and Power Systems
- Electrocatalysts for Energy Conversion
- Advanced Battery Materials and Technologies
- Magneto-Optical Properties and Applications
- Advanced Decision-Making Techniques
- Fetal and Pediatric Neurological Disorders
- Luminescence and Fluorescent Materials
- HVDC Systems and Fault Protection
- Analytical chemistry methods development
- Lightning and Electromagnetic Phenomena
- Gas Sensing Nanomaterials and Sensors
- Electromagnetic Compatibility and Measurements
- Metal-Organic Frameworks: Synthesis and Applications
Northeast Electric Power University
2025
Northeast Normal University
2022-2025
Qingdao Agricultural University
2025
Hudson Institute
2023
Qingdao University of Science and Technology
2023
John Wiley & Sons (United States)
2023
Chongqing University of Posts and Telecommunications
2022
Ocean University of China
2022
Qufu Normal University
2018-2021
Northeast Petroleum University
2021
Abstract With the rapidly increasing demand for grid‐scale energy storage systems, rechargeable aqueous zinc ion batteries (ZIBs) are capturing attention as a highly promising technology with low cost and high safety. Nevertheless, rampant dendrite growth, hydrogen evolution reaction (HER), corrosion of anode have dramatically impacted their practical application. Here, self‐supported modified layer ultrafine high‐entropy nanoparticles (2 nm) zincophilic sites is realized to modify Zn first...
Sodium-ion batteries (SIBs) have been regarded as a promising alternative to lithium-ion due the natural abundance of sodium in earth's crust. In our work, fusiform Fe7X8@C (X = S, Se) composites were obtained via one-step pyrolysis strategy applied SIB anode materials. The formed carbon skeleton could prevent Fe7X8 nanoparticles from agglomeration and stabilize interface Fe/Na2X generated redox reactions. exhibits excellent reversible specific capacity (1005.3 mAh g–1 under 0.2 A for...
This paper proposes a zero-sequence model-based sensorless control strategy for open-winding permanent-magnet synchronous machine (OW-PMSM) with common dc bus. The third harmonic back electromotive force (EMF) in is utilized to estimate the rotor position information. novelty that EMF reconstructed based on model together current, instead of using voltage transducer and three phase resistance network which can be eliminated from system. Due essence EMF, developed method appropriate...
This paper proposes a novel cogging torque mitigation method for modular permanent magnet (PM) machines with flux gaps in alternate stator teeth. The slot openings (SOs) of the PM are divided into two groups special way. By shifting SOs opposite directions same angle, machine can be significantly reduced. An analytical formula desired shift angle is derived, and applicable to other different slot/pole number combinations. Meanwhile, influence proposed on phase back electromotive force (EMF)...
<h2>ABSTRACT</h2> The growth and reproduction of microorganisms are dependent on nutrient supply. Here, Milk LB media were utilized as nutrition sources for <i>Escherichia coli</i>, the changes in bacterial secretory proteins at 3 time points (3, 9, 18 h) cycle studied using a label-free proteomics technique. findings revealed that abundances intracellular inosine/xanthosine triphosphatase universal stress protein F increase dramatically during phase milk media. In terms proteins, RNase PH...
Abstract Zinc‐iodine (Zn‐I 2 ) batteries are of great interest thanks to their high energy density, low cost, and inherent safety. However, the dissolution I − generated polyiodides exacerbated by dissolved severely reduces utilization active substance, resulting in poor coulombic efficiency a drastic decrease performance. In this regard, chemical immobilization iodine species with high‐entropy material is developed. Benefiting from remarkable catalytic anchoring activity material,...
This paper proposes an analytical method that combines the superposition concept and subdomain to predict cogging torque of permanent magnet (PM) machines with a rotor eccentricity. The original eccentric machine is first divided into several sections along air-gap circumferential direction. Then, equivalent lengths all will be determined individually used build up series concentric models representing each section. By method, flux density can synthesized from every model predicted through...
This paper proposes an analytical method that combines the superposition and subdomain methods to predict air-gap field distribution in permanent magnet (PM) machines with rotor eccentricity. The original machine eccentricity is divided into a number of sections along circumferential direction. For each section, concentric model employed by adopting equivalent length using method. can then be synthesized from these models. Consequently, electromagnetic performance predicted accordingly, such...
This paper reviews the modularity techniques in stator manufacture of permanent magnet machines for different applications.Some basic concepts modular are firstly introduced.Modular several typical applications then described details, including domestic appliances, automobiles and electric vehicles, more aircrafts civic applications, wind power generators, etc. Besides, influence tolerance gaps flux barriers on electromagnetic performance is discussed.
Automatic crack segmentation plays an important and challenging role in pavement maintenance. In recent years, researchers have been trying to figure out the task that long dependencies global context information could not get well established using convolutional neural networks. A method of network (CNN) transformer called CrackT-net is proposed address this issue. aspect backbone network, we propose a new named richer features (RF) UNet++, which skip connections, gated channel...
In the past, various fundamental model based sensorless control methods have been proposed. However, most of them are developed under a healthy condition. Hence, in this article, permanent magnet synchronous machines (PMSM) rotor eccentricity (RE) is investigated which common issue many drive systems. It known that RE, three-phase back-EMFs, flux-linkages, inductances, and torque will be influenced. Mathematical derivation reveals these effects cause undesired harmonics position estimation....
This paper investigates the influence of concentrated winding configurations and stator core structures on torque performance fractional-slot surface-mounted permanent magnet (SPM) machines. From analyzing separated components prototype SPM machines with 12-slot/10-pole (12S/10P) combination by frozen permeability (FP) method, it can be found that ripple is closely related local saturation in fully closed slot (FCS) Besides, heavier will also jeopardize merit using alternate teeth wound...
A modular linear doubly salient machine with dual-PM in the primary yoke and slot openings is proposed this paper. First, topology introduced, where PMs are employed both openings. The magnetic fluxes excited by pass through air gap link secondary, not short-circuited teeth. Hence, can be concentrated enhanced gap. Then, operation principle investigated based on permeance model, which shows that it obeys flux modulation principle. electromagnetic performances analyzed detail using FEM, force...
In order to ease the manufacture process of very large permanent magnet (PM) machines, such as direct drive wind power generators, modularity technique is usually adopted. Although conventional fractional slot PM machines with all teeth wound windings show good performance, coils located at end part each segment could be easily damaged because being exposed air. addition, local winding faults proliferate whole machine due physical touch adjacent coils. Thus, a novel modular redundant...
This paper proposes a double superposition method to quickly and accurately predict the cogging torque unbalanced magnetic force (UMF) of permanent magnet machines with axial-varying rotor eccentricities. The original eccentric machine is cut into several uniform slices along axial direction each slice considered be axially uniform, i.e., even. For axial-even slice, circumferential can used UMF this slice. Finally, obtained by using an technique which combines different eccentricity...
Hexadecyl trimethylammonium bromide (CTAB) micelles were applied in the synthesis of covalent organic frameworks (COFs) for first time to achieve 3D COF from 2D materials. Benzidine, one raw material COF, was enclosed CTAB because hydrophobic effect, and thus target which can be formed immediately with aid p-toluenesulfonic acid, grew a micelle guided form. The synthesized showed flower-like structure, whereas without smooth structure. diameter COFs direct correlations concentrations....