A5020161572- Advanced Fiber Optic Sensors
- Agricultural Engineering and Mechanization
- Thermal Analysis in Power Transmission
- High voltage insulation and dielectric phenomena
- Electrical Fault Detection and Protection
- Soil Mechanics and Vehicle Dynamics
- Air Quality and Health Impacts
- Climate Change and Health Impacts
- Advanced Surface Polishing Techniques
- Metal Alloys Wear and Properties
- Flow Measurement and Analysis
- Energy and Environment Impacts
- Smart Materials for Construction
- Structural Analysis and Optimization
- Metallurgy and Material Forming
- Advanced machining processes and optimization
- Magnetic and Electromagnetic Effects
- Lightning and Electromagnetic Phenomena
- HVDC Systems and Fault Protection
- Advanced Photonic Communication Systems
- Spectroscopy and Chemometric Analyses
- Welding Techniques and Residual Stresses
- Topology Optimization in Engineering
- Mechanical stress and fatigue analysis
- Innovative concrete reinforcement materials
Xi'an Jiaotong University
2020-2024
State Key Laboratory of Electrical Insulation and Power Equipment
2024
Xi'an Technological University
2019-2023
Ansteel (China)
2020
Ministry of Ecology and Environment
2019
Drexel University
2016-2018
Henan University of Technology
2012-2015
Universidad del Noreste
2014
The 500 kV oil-filled ac submarine cables in the networking project of China's southern coast are large capacity, ultrahigh-voltage cross-sea power cables, which 31 km long and bundled with optical cables. Temperature monitoring on is great significance controlling ampacity ensuring operational reliability. Referring to cables' structural characteristics setting conditions, a temperature system established based Brillouin time-domain analysis (BOTDA) distributed fiber sensing technology....
Epoxy and its composites are widely used as raw materials for the solid insulations in gas insulated switchgear (GIS) worldwide due to their excellent dielectric properties, thermal stability, corrosion resistance, ease of processing. These insulation show aging phenomena under multiple stresses electrical, vibration during GIS operation, which reduces electrical mechanical strength insulation, further leads operational failures GIS. Therefore, it is crucial study characteristics epoxy...
The 500 kV oil-filled AC submarine cable in Hainan Networking System is the first large capacity, ultra-high voltage cross-sea power China, which 31 kilometers long and bundled with a optical cable. And temperature monitoring on of great significance to control current rating ensure operation reliability. Based structural characteristics setting condition this cable, system established paper based Brillouin time-domain analysis (BOTDA) technology. In system, used monitor surface, an...
Accurate prediction for the deformation of roll system is a key to improve accuracy preset model and on-line control strip cold rolling processes. A non-linear finite element contact simulate has been developed for4h mill. Roll process 4-high mill simulated analyzed by 3D elastic-plastic FEM on bases software ANSYS. In model, elastic work backup roll, plastic pressure were taken into account. Results show that HYPERLINK "javascript:showjdsw ('showjd_0','j_0')" asymmetric bending most...
Optical fiber composite low voltage cable (OPLC) is an optimized way of carrying out the function supplying electrical power and communication signals in a single cable. In this paper, temperature stress distribution OPLC analyzed by using finite element method as current increases to maximum capacity. The increase are two main factors that affect additional attenuation optical fiber. This can be reduced selecting optimal heat resistant layer for unit limits at analysis carried three...
Air pollution has posed a serious public health issue in China. In the study, we aimed to examine burden of air and its association with climate factors total mortality. City-level daily quality index (AQI) data 161 cities China 2014, meteorological factors, socioeconomic status morality were obtained from environmental, meteor-ology healthcare agencies. Linear regression, spatial autocorrelation analysis panel fixed models applied analysis. Among cities, monthly average AQI was...
Abstract Fractional frequency transmission is a promising solution to offshore wind power integration. This paper proposes new grid integration scheme of fractional system (FFOWPS) based on Y‐connected modular multilevel converter (Y‐MMC). To get better quality, novel Y‐MMC modelling and control method considering leakage presented. Besides, in order achieve satisfactory fault ride‐through (FRT) performance for FFOWPS, this FRT strategy. The strategy makes use the onshore voltage droop...
Abstract The shell structure design of modern spacecraft internal devices is developing towards lightweight, high-performance, and low-cost. In order to achieve a lightweight construction the structure, this work takes as an optimization object. Under premise ensuring that stiffness box meets requirements, adopts post-design method. First, preliminary model was conducted using SolidWorks, then transient dynamic analysis conducted. results met requirements. Then, topology optimized ANSYS...
Optical fiber composite low voltage cable (OPLC) is an optimal way of connecting the smart grid with load. In this paper, field distribution temperature and stress simulated by applying finite element method. At overload condition, unit’s rises to 59°C that generates strain 387 µε. This together result in additional attenuation 0.053 dB/km optical fiber. Temperature are termed as major contributing factors towards caused 16.03% while 80.56% total loss.
In this paper, 500kV AC submarine cable was taken as the object, finite element software COMSOL used to establish simulation model of fluid-structure coupling, and force suspended analyzed. The stress distribution lead alloy sheath in four specific directions location maximum value obtained. On basis, relationship between length obtained by changing cable. According initial yield sheath, reference preliminary damaged structure given, which provides some theoretical analysis for online...
Introduction and Hypothesis: Stroke is a leading cause of death the major disability in world. However, few studies applied multilevel regression techniques to explore association stroke risk with climate change air pollution. In study, we aimed test hypothesis that disproportionately distributed rates across counties cities within country are significantly associated pollution temperature. Methods: We used data from U.S. 1118 49 states, which had estimated measures particulate matter...
Grain is a vital commodity that has significant effects on people’s livelihood. not an infinite renewable resource due to population growth, shrinking cultivated land, limited water supply, ongoing climate change, and so on. In spite of multiple varieties, grain faces serious challenges now in the coming decades china. Where there short individual breed suitable for end-use performance. The farrago different varieties leads inefficient use grain. Improved detection methods are scarce graded...