A5049343650- High voltage insulation and dielectric phenomena
- High-Voltage Power Transmission Systems
- Vacuum and Plasma Arcs
- HVDC Systems and Fault Protection
- Electrical Fault Detection and Protection
- Power Transformer Diagnostics and Insulation
- Gear and Bearing Dynamics Analysis
- Advanced Thermoelectric Materials and Devices
- Lightning and Electromagnetic Phenomena
- Conducting polymers and applications
- Smart Grid and Power Systems
- Ferroelectric and Piezoelectric Materials
- Force Microscopy Techniques and Applications
- Phytochemicals and Antioxidant Activities
- Horticultural and Viticultural Research
- Aerosol Filtration and Electrostatic Precipitation
- Power System Reliability and Maintenance
- Essential Oils and Antimicrobial Activity
- Hydraulic and Pneumatic Systems
- Aluminum Alloys Composites Properties
- Thermal properties of materials
- Nuts composition and effects
- Plant biochemistry and biosynthesis
- Mechanical and Optical Resonators
- Tribology and Lubrication Engineering
State Grid Corporation of China (China)
2022-2025
State Key Laboratory of Electrical Insulation and Power Equipment
2022-2024
Xi'an Jiaotong University
2022-2024
Electric Power Research Institute
2024
Kunming University of Science and Technology
2022-2024
Nanchang University
2024
BaiCheng Normal University
2022-2024
State Key Laboratory of Food Science and Technology
2024
Chinese Academy of Tropical Agricultural Sciences
2015-2022
Battery Park
2022
Multiferroic CoFe(2)O(4)-Pb(Zr(0.52)Ti(0.48))O(3) core-shell nanofibers have been synthesized by coaxial electrospinning in combination with a sol-gel process. The configuration of has verified scanning electron microscopy and transmission microscopy, the spinel structure CoFe(2)O(4) perovskite Pb(Zr(0.52)Ti(0.48))O(3) confirmed X-ray diffraction selected area diffraction. multiferroic properties demonstrated magnetic hysteresis piezoresponse force their magnetoelectric coupling evolution...
Electromechanical coupling is ubiquitous in nature and underpins the functionality of materials systems as diverse ferroelectric multiferroic materials, electrochemical devices, biological systems, strain-based scanning probe microscopy (s-SPM) techniques have emerged a powerful tool characterizing manipulating electromechanical at nanoscale. Uncovering underlying mechanisms these however, difficult outstanding problem, questions confusions arise from recent experiment observations its...
To reduce the environmental impact of cement production and carbon emissions, use supplementary cementitious materials to replace part clinker carbonation curing are two most effective strategies for reducing dioxide emissions in concrete industry. This study mainly explores effects calcined clay on cement-based under different conditions (normal curing), as well synergistic effect carbide slag conditions. The results demonstrate that: (1) Calcined clays can undergo pozzolanic reactions with...
Carbon nanofibers (CNFs) have been synthesized from thermoplastic polyvinylpyrrolidone (PVP) using electrospinning in combination with a novel three-step heat treatment process, which successfully stabilizes the fibrous morphology before carbonization that was proven to be difficult for polymers other than polyacrylonitrile (PAN). These CNFs are both mesoporous and microporous high surface areas without subsequent activation, thus overcome limitations of PAN based CNFs, processed an...
Significance Ferroelectricity has long been speculated to have important biological functions, although its very existence in biology never firmly established. Here, we present, our knowledge, the first macroscopic observation of ferroelectric switching a system, and elucidate origin mechanism underpinning elastin. It is discovered that polarization elastin intrinsic at monomer level, analogous unit cell level classical perovskite ferroelectrics. Our findings settle long-standing question on...
Due to the low content of silicon and aluminum in red mud reaction activity mud, when it was used prepare composite cementitious materials, necessary assist other aluminosilicates improve their by certain methods. In this study, proposed add slag increase percentage system, reactivity system through activation effect sulfate phosphogypsum. The effects phosphogypsum contents on mechanical properties microstructures materials were studied. X-ray diffraction analysis (XRD), thermogravimetric...
Phosphogypsum-based cementitious material (PBC) is acknowledged as a low-carbon green composite material. The addition of lime to modify PBC has been found significantly enhance utilization rate. This study investigates the effects varying contents in on mechanical properties, volume expansion, hydration products, micromorphology, and pore structure modified Phosphogypsum (PS). results demonstrate that effectively counteracts retarding effect water-soluble impurities PS, thereby reducing...
A novel technique is developed to process nanocrystalline Ca3Co4O9 ceramics with much enhanced thermoelectric properties. Nanocrystalline nanofibers are synthesized first using sol−gel based electrospinning, and then consolidated into bulk by spark plasma sintering preferred grain orientation distribution without substantial growth. The nanofiber-sintered ceramic has a size smaller than that sintered from powders improved texture, simultaneously Seebeck coefficient, electric conductivity,...
Elastin is an intriguing extracellular matrix protein present in all connective tissues of vertebrates, rendering essential elasticity to subjected repeated physiological stresses. Using piezoresponse force microscopy, we show that the polarity aortic elastin switchable by electrical field, which may be associated with recently discovered biological ferroelectricity aorta. More interestingly, it switching largely suppressed glucose treatment, appears freeze internal asymmetric polar...
Secondary utilization of retired lithium-ion batteries (LIBs) from electric vehicles could provide significant economic benefits. Herein, based on a short pulse test, we propose two-step machine leaning method, which combines unsupervised K-means clustering and supervised Gaussian process regression for sorting estimating the remaining capacity LIBs simultaneously. First, test to reflect battery aging is detailed, significance screening in validated by poor accuracy over 500 unscreened...
In this paper, a novel composite of graphene/MnO<sub>2</sub>(GR/MnO<sub>2</sub>) was successfully synthesized by simple one-step hydrothermal method.
The oil jet lubrication performance of a high-speed and heavy-load gear drive is significantly influenced determined by the nozzle layout, as there extremely limited meshing clearance for impinging stream an inevitable blocking effect rotating gears. A novel mathematical model calculating impingement depth jetting on orthogonal face surface has been developed based theory process, this contains comprehensive design parameters layout pair. Computational fluid dynamic (CFD) numerical...
Lubrication and cooling performances of face gears with oil–jet lubrication are closely related to the nozzle layouts. To investigate influence layouts on performance gears, a numerical analysis method based heat-flow coupling is adopted in this study for predicting transient temperature characteristics. First, mathematical model impingement depth integrating spatial layouts, injection parameters, geometric parameters given gear presented determining nozzle. Then, after accessing friction...
High-efficiency thermoelectric oxide materials are promising for the conversion of waste heat directly into electricity, and nanostructure engineering is effective in enhancing figure merit through phonon scattering at grain boundaries interfaces. In this work, we report a sol−gel-based electrospinning technique to synthesize NaCo2O4 nanofibers with size as small 10 nm, orders magnitude smaller than that powders processed by conventional sol−gel techniques. A series scanning probe microscopy...
The eggplant was mutagenized with ethyl methane sulfonate (EMS) to enhance its genetic variability in our previous paper. In this article, we further analyzed the phenotype of M2 generation mutant eggplants. A total 325 independent families were investigated for phenotypic variation. addition visible variation, chlorogenic acid (CGA) concentrations 26 fruits mutants High Performance Liquid Chromatography assay. Seventeen exhibited significantly higher CGAs than those wild-type. anthocyanin...
In this paper, a nonlinear integrated multi-body dynamic (MBD) model of deep-sea mining (DSM) system was developed. A particular interaction between the vehicle and seabed sediment derived. The fluid resistance torque acting on were obtained by computational dynamics (CFD) numerical simulations. addition, rigid-flexible coupled discrete element method (DEM) adopted to an extremely long riser efficiently accurately. Developed C# program, user-defined subprogram intended establish DEM riser....
The operation of converter valves in stations often results high reactive power consumption and harmonic generation, necessitating measures to maintain balance ensure quality. To achieve this, the filter bank circuit breaker is frequently switched on off during daily operation. In recent years, multiple incidents breakdown opening process have been reported. this study, systems computer-aided design (PSCAD)/electromagnetic transients including DC (EMTDC) V5.0 electromagnetic transient...
The piezoelectric grating voltage sensor has garnered significant attention in the realm of intelligent sensing, attributed to its compact size, cost-effectiveness, robust electromagnetic interference (EMI) immunity, and high network integration capabilities. In this paper, we propose a PZT-FBG (piezoelectric ceramic-fiber Bragg grating) voltage-temperature demodulation optical path architecture. This scheme effectively utilizes originally unused temperature compensation reference grating,...