A5104141469- Power Transformer Diagnostics and Insulation
- High voltage insulation and dielectric phenomena
- Power Systems Fault Detection
- High-Voltage Power Transmission Systems
- Traffic Prediction and Management Techniques
- Vacuum and Plasma Arcs
- Transportation Planning and Optimization
- Non-Destructive Testing Techniques
- Traffic control and management
- Power System Reliability and Maintenance
- Lightning and Electromagnetic Phenomena
- COVID-19 epidemiological studies
- Evolution and Genetic Dynamics
- Electrohydrodynamics and Fluid Dynamics
- Plasma Applications and Diagnostics
- Plasma Diagnostics and Applications
- Vitamin C and Antioxidants Research
- Advanced Image and Video Retrieval Techniques
- Statistical Distribution Estimation and Applications
- Metallurgical Processes and Thermodynamics
- Mathematical and Theoretical Epidemiology and Ecology Models
- Magnetic Properties and Applications
- Autonomous Vehicle Technology and Safety
- Polymer Foaming and Composites
- Safety Warnings and Signage
China Southern Power Grid (China)
2015-2024
Guilin University of Electronic Technology
2018-2024
Guilin University
2024
Soochow University
2024
Sichuan University
2024
West China Second University Hospital of Sichuan University
2024
Affiliated Eye Hospital of Wenzhou Medical College
2024
Wenzhou Medical University
2024
Jilin University
2024
First Hospital of Jilin University
2024
The interturn short circuit fault is one of the common faults in power transformers. At present, research on focuses high, medium, and low voltage windings, while there relatively little regulating windings. Specifically, a lack reported studies transient electromagnetic processes, magnetic field distribution, force characteristics circuits windings unconnected to circuit. This study presents an actual scenario involving occurring untapped portion specific transformer. A field-circuit...
Statistical lifetime modeling is of importance for replacement management aged power transformers. Survival data are recognized as important failure in improving the accuracy level models since transformer failures rare events and most units still operating condition. This paper argues that differentiating random aging-related also important. Different requisites analyzed compared through Monte Carlo simulations. The life-cycle model can be built by combining models. A case study presented...
Neuroglioma is the most common form of human primary malignant brain tumor, more and studies recently showed only a small subpopulation glioma cells which called stem have true tumorigenic potential.Meanwhile, it was reported overexpression JMJD6 protein closely involvement with occurrence development multiple tumors, required for differentiation organ, tissues during embryogenesis.However, influence on neuroglioma unclear now.Hence, to explore effects expression neuroglioma, we firstly...
The renaissance of research interests in actinide oxo clusters the past decade arises from both concerns radioactive contamination and their potential utility as nanoscale materials. Compared to uranium cluster, thorium (Th) cluster shows less coordination variation. Herein, we presented a unique Th (
In this work, to clarify the impact of electric bicycle drivers’ risky driving behavior on safety, we used multiple regression analysis methods combined with a questionnaire survey residents city Guilin, China. We studied two dimensions safety knowledge and attitude behavior, identified differences in these from perspective personal characteristics. Through modeling analysis, found that “responsible attitude” “group explain 62.4% variation aggressive behavior; 48.5% negligent is caused by...
With the development of voltage level and capacity in recent years, impact external short circuit has a growing threat to stability transformer windings than ever before. Because weakness anti-short-circuit capacity, around 40% faults are caused by huge every year. In view this, it is great significance study mechanical behavior winding structures during short-circuit faults. This paper represents investigations current, transient leakage magnetic field, electromagnetic forces von Mises...
In order to quickly mine hotspot areas from taxi trajectory data, so as help drivers improve the efficiency of passenger search and economic income, this paper proposes a grid-optimised DBSCAN algorithm. Firstly, study area is divided into number grids same size, then data mapped grid by function, finally clusters are generated based on width-first search, which reduces range boundary points each point, forms clustered hotspots clustering high-density cells. paper, we use in Chengdu city...
The free-standing magnetic field energy harvester (FSMFEH) offers a potential solution for powering sensors in the power grid. However, designing FSMFEH through finite element simulations and experiments is time-consuming difficult to summarize generalized design guidelines. To address this issue, mathematical model relating density coil core parameters developed article. A correction term introduced reflect aggregation of H-shaped external field. experimental results show that error less...
Multi-modal eye disease screening improves diagnostic accuracy by providing lesion information from different sources. However, existing multi-modal automatic diagnosis methods tend to focus on the specificity of modalities and ignore spatial correlation images. This paper proposes a novel cross-modal retinal network (CRD-Net) that digs out relevant features modal images aided for multiple diagnosis. Specifically, our model introduces attention (CMA) module query adaptively pay in In...
Abstract Background In this study, we investigated the relationship between risk of postoperative progressive disease (PD) in breast cancer and depression sleep disorders order to develop validate a suitable prevention model. Methods A total 750 patients with were selected from First People’s Hospital LianYunGang, indices two groups (an event group non-event group) compared prediction The depression, disorders, PD events was using follow-up data patients. Results SAS, SDS, AIS scores...
Radiofrequency ablation (RFA), a critical therapy for hepatocellular carcinoma (HCC), carries significant risk of recurrence and metastasis, particularly owing to mechanisms involving immune evasion antigen downregulation via epigenetic modifications. This study introduces "nano-epidrug" named MFMP. MFMP, which is composed hollow mesoporous manganese dioxide (MnO2) nanoparticles, FIDAS-5 as an MAT2A inhibitor, macrophage membrane, anti-PD-L1 (aPD-L1), targets HCC cells. By selectively...
The recent decade has witnessed remarkable developments of SIFT-based approaches for image retrieval. However, such are inherently insufficient in handling the semantic gap and large viewpoint changes, leading to inferior performance. To address these limitations, this paper extends match kernels by integrating functions SIFT CNN features. Specifically, a thresholded exponential kernel features is proposed calculate their similarity images. Thus, images having lower than threshold will be...
The high-energy arcing faults in power transformer can cause overpressure which would break the tank open, lead to oil-spill and even catching on fire. Facing great hazard of during internal duration, this paper has investigated physical process revealed relationship between electrical characteristics from energy conversion perspective. Due fact that tests inside transformers are extraordinarily difficult, destructive costly, theoretical model been proposed numerical simulation approaches...
To carefully describe the mechanical condition information from transformer acoustic signals and then identify its typical faults, combination of gammatone filter cepstral coefficient (GFCC) time-frequency graph Convolution Neural Network is proposed in this paper when considered excellent sound recognition ability human auditory system. The filterbank first used to decompose frequency power with abundant samples GFCC diagram obtained. Then intrinsic features signal are extracted by AlexNet...
This study presents a class of the stochastic time-delayed susceptible–educated–infective–recovered–susceptible (SEIRS) epidemic model incorporating both public health education and Lévy jumps. We prove that system has unique global positive solution. also provide derived conditions sufficient for extinction persistence in mean. The verification findings conclusions is performed through parameter sensitivity analysis numerical simulations. concludes education, noises, vaccination, increased...
In view of the transformer internal fault would lead to tank cracking, fire, explosion and other serious accidents, power transformers are usually equipped with pressure relief valve gas relay. However, due lack theoretical innovation reliability remain in existing protections. This paper proposes a numerical method research behaviors under overpressure caused by high-energy arcing faults develops protection principles based on characteristics. According real full-scale 100MVA/110kV...
Construction of UHV power grid is the fundamental guarantee to growing demands electricity in future. Six phase transmission lines can evidently improve density, and many countries pay attention it. A new method fault location selection on six-phase was analyzed this paper. The six sequence variables analyze electrical signals gained form end lines. With help long line equation, currents be calculated from And characteristics amplitude for used selection. Theoretical analysis MATLAB...
Large scale components exist widely in advance manufacturing industry,3D profilometry plays a pivotal role for the quality control. This paper proposes flexible, robust large-scale 3D scanning system by integrating robot with binocular structured light scanner and laser tracker. The measurement principle construction of integrated are introduced. And mathematical model is established global data fusion. Subsequently, flexible method mechanism introduced establishment end coordination system....
As an essential component of power transformer, transformer bushing's reliable operation does not only impact the safety itself but also other equipment located nearby. To prevent bushing failures, it is therefore important to routinely assess insulation and pin-point potential problem as early possible. In this paper, fault diagnosis tear-down analysis five 500kV oil-impregnated paper (OIP) bushings are presented. Results different field laboratory diagnostic tests discussed compared. Key...