A5100352463- Magnetic and transport properties of perovskites and related materials
- Multiferroics and related materials
- Magnetic Properties and Applications
- Supercapacitor Materials and Fabrication
- Advanced Cellulose Research Studies
- Energy Load and Power Forecasting
- Advanced Condensed Matter Physics
- Electrospun Nanofibers in Biomedical Applications
- Magnetic properties of thin films
- Advancements in Battery Materials
- Power Quality and Harmonics
- biodegradable polymer synthesis and properties
- Ga2O3 and related materials
- Machine Fault Diagnosis Techniques
- Advanced Sensor and Energy Harvesting Materials
- Plasmonic and Surface Plasmon Research
- Nuclear physics research studies
- Vibration and Dynamic Analysis
- Synthesis and properties of polymers
- Metallic Glasses and Amorphous Alloys
- Silk-based biomaterials and applications
- Ferroelectric and Piezoelectric Materials
- Polymer Foaming and Composites
- Hydrogels: synthesis, properties, applications
- Power Transformer Diagnostics and Insulation
North China Electric Power University
2016-2024
Huainan Normal University
2024
Hebei University of Technology
2023
Northwest Normal University
2023
Sun Yat-sen University
2023
Qingdao University
2023
Guangdong University of Technology
2022
Wuhan University of Technology
2022
Wuhan Textile University
2021
Qingdao University of Science and Technology
2021
The spin-wave excitations of the multiferroic ${\mathrm{MnWO}}_{4}$ have been measured in its low-temperature collinear commensurate phase using high-resolution inelastic neutron scattering. These can be well described by a Heisenberg model with competing long-range exchange interactions and single-ion anisotropy term. magnetic are strongly frustrated within zigzag spin chain along $c$ axis between chains $a$ axis, while coupling $b$ is much weaker. balance these results noncollinear...
Abstract Many strategies have been adopted to engineer bone–ligament interface, which is of great value both the tissue regeneration and mechanism understanding underlying interface regeneration. However, how recapitulate complexity heterogeneity native including structural, cellular mechanical gradients still challenging. In this work, a bioinspired grid-crimp micropattern fabricated by melt electrospinning writing (MEW) was proposed mimic structure interface. The printing strategy crimped...
We present a comprehensive single-crystal neutron diffraction investigation of the Mn${}_{1\ensuremath{-}x}$Co${}_{x}$WO${}_{4}$ with $0.02\ensuremath{\le}x\ensuremath{\le}0.30$. At lower concentration $x\ensuremath{\le}0.05$, system is quickly driven into multiferroic phase spin structure forming an elliptical spiral order similar to parent compound. The reduction electric polarization ascribed tilting plane. For $x\ensuremath{\sim}0.075$, magnetic undergoes spin-flop transition that...
Short-term load forecasting plays a vital role in the daily operational management of power utility. To improve accuracy, this paper proposes hybrid EMD-PSO-SVR model for short-term based on empirical mode decomposition (EMD), support vector regression (SVR), and particle swarm optimization (PSO), also considering effects temperature, weekends, holidays. EMD is used to decompose residential electric data into number intrinsic function (IMF) components one residue; then SVR constructed...
The Co
In this work, the effect of layer charge density Na-montmorillonite (Na-MT) and carbon chain length alkyl ammonium on structure gel property organo-montmorillonite (organo-MT) was studied by using X-ray diffraction (XRD), Fourier transform infrared (FTIR), thermogravimetric (TG) analysis, contact angle test, molecular dynamics (MD) simulation, apparent viscosity determination experiment. The results XRD show that Na-MT with lower is easier to swell after intercalation ammonium, basal spacing...
The cores of anode saturated reactor (ASR) are the main vibration source HVDC converter valve system. ASR is excited with an impulse voltage, which contains many harmonic components, and magnetostriction usually reason vibration. Therefore it significant to study influence on core ASR. In this paper, magneto-mechanical coupling model established based theory expression acceleration in presence third derived. test platform built core's acceleration. magnetic magnetostrictive properties...
The injection of the Direct Current (DC) bias component will lead to oversaturation transformer core and affect its safe operation. In this paper, vector magnetic potential A winding current I are used as variables solved in time-step finite element method simulate nonlinear transient magnetization characteristics under DC bias, fixed-point reluctivity is introduced deal with iterative problem. field-circuit coupling relationship established through electromagnetic induction law,...
Functional polymer-grafting silica nanoparticles hold great promise in diverse applications such as molecule recognition, drug delivery, and heterogeneous catalysis due to high density uniform distribution of functional groups their tunable spatial distance. However, conventional grafting methods from monomers mainly consist one or more extra surface modification steps a subsequent polymerization step. A monomer protonation-dependent strategy is proposed achieve one-step cross-linked...
We present a theoretical mechanism for electric field enhancement with SERS of InAs particles subwavelength apertures under THz excitation. The distribution confirms that there is strong in the at frequencies. Drude-like behavior range, which similar to metals optical frequencies, leads different when parameters these two change. factor can reach [Formula: see text] certain conditions.
Using ambient pressure x-ray and high neutron diffraction, we studied the effect on structural magnetic properties of multiferroic ${\mathrm{Mn}}_{1\text{\ensuremath{-}}x}{\mathrm{Co}}_{x}{\mathrm{WO}}_{4}$ single crystals ($x=0$, 0.05, 0.135, $0.17$) compared it with effects doping. Both Co doping stretch Mn-Mn chain along $c$ direction. At level ($x=0.135$ $0.17$), drive system in a similar way induce spin-flop transition for $x=0.135$ compound. In contrast, ground states at lower $(x=0$...
The level structure of the transitional nucleus $^{217}\mathrm{Ra}$ has been extended with addition around 20 new transitions. discrepancies between placements several transitions reported in earlier studies are resolved. newly established negative-parity sequence at low excitation energies hints expected parity-doublet structures this nucleus. properties observed simplex bands compared that similar neighboring nuclei. Since presence reflects octupole correlations, theoretical calculations...
We introduce a metasurface capable of generating multiple bound states in the continuum (BICs). Through rotation two LiTaO 3 columns, symmetry protection can be broken, resulting quasi-BIC with high quality factor. The multipolar analysis each BIC confirms that dominant pole aligns closely electromagnetic field. Additionally, we demonstrate tunability quasi-BIC’s factor by modifying Fermi level graphene, designing terahertz (THz)-wave modulator remarkable modulation depth more than 90% and...
Using high-resolution inelastic neutron scattering, we examine the spin dynamics of ${\mathrm{Mn}}_{1\ensuremath{-}x}{\mathrm{Co}}_{x}{\mathrm{WO}}_{4}$ in collinear AF1, $ac\text{\ensuremath{-}}b$ spiral AF2, and $ac$ cycloidal AF5 phases. The wave excitations are well described by a Heisenberg model with competing long-range exchange interactions $({J}_{i}$ up to 12th nearest neighbors) single-ion anisotropy $K$ induced spin-orbit interaction. While constants relatively unchanged, dominant...
In this paper, improved solving method are proposed to calculate the maximum entropy probability distribution of negative sequence current. Negative current is got from process measured data obtained power quality monitoring system first. Second, curve fitting used based on method. Logarithmic function and deleting small value points at ends improve parameters solution fitting. The more consistent with actual compared original parameter Finally, error evaluate effect prove feasibility