A5100341755- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Additive Manufacturing and 3D Printing Technologies
- Aluminum Alloy Microstructure Properties
- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Technologies
- Aluminum Alloys Composites Properties
- Microstructure and mechanical properties
- Intermetallics and Advanced Alloy Properties
- Enhanced Oil Recovery Techniques
- Drilling and Well Engineering
- Thermochemical Biomass Conversion Processes
- Oil and Gas Production Techniques
- Electrical and Bioimpedance Tomography
- Advanced Wireless Communication Techniques
- Structural Load-Bearing Analysis
- Tunneling and Rock Mechanics
- Full-Duplex Wireless Communications
- Rock Mechanics and Modeling
- Simulation and Modeling Applications
- Geoscience and Mining Technology
- Muscle activation and electromyography studies
- Microfluidic and Bio-sensing Technologies
- HVDC Systems and Fault Protection
- Sparse and Compressive Sensing Techniques
Beijing University of Posts and Telecommunications
2022-2024
Guizhou University
2024
State Key Laboratory of Clean Energy Utilization
2023-2024
Zhejiang University
2023-2024
Nagoya University
2020-2024
Guizhou Minzu University
2024
University of Jinan
2024
Wuhan University of Technology
2023
University of Hong Kong
2023
China Academy of Engineering Physics
2015-2023
This paper addresses the problem posed by complex, nonlinear controllers for power system load flows employing multi-terminal voltage source converter (VSC) HVDC systems. More realistic dc grid control strategies can thus be carefully considered in flow analysis of ac/dc grids. Power methods VSC-HVDC (MTDC) systems are analyzed different types techniques and weaknesses present addressed. As distributed is likely to adopted practical grids, a new generalized algorithm proposed solve problems...
This paper presents a comprehensive analysis of the limitations and key dynamics closed-loop active power control systems for voltage-source converter (VSC) HVDC, regarding stability, performance, robustness. Detailed dynamic models are derived controllability robustness issues VSC identified. Limitations imposed by ac system strength, operating point, current design on stability performance two leading principles addressed, using frequency-response time-domain simulations. The interactions...
Immiscible fluid–fluid displacement in porous media is an important phenomenon that impacts the field of underground energy and environmental engineering, such as enhanced oil/gas recovery, geological CO2 sequestration, transport remediation groundwater pollutants. In oil occurrence fingering instability two-phase flow interface causes a significant reduction recovery factor for waterflooding. efficiency capillary/residual trapping limited by noncompact pattern, presenting only part brine...
PTX-PLGA/Mel-PFP nanoparticles and their application to near-infrared (NIR)-responsive drug release photoacoustic (PA)/ultrasound (US) imaging guide combined photothermal-chemotherapy for tumor ablation.
Laser-beam powder bed fusion (PBF-LB) technique was used to produce an Al–2.5%Fe–2%Cu ternary alloy, featuring a two-phase eutectic composition of α-Al/Al23CuFe4 in non-equilibrium solidification, as determined by thermodynamic calculations. The specimen manufactured PBF-LB exhibited high tensile strength exceeding 350 MPa and low thermal conductivity approximately 140 W·m−1·K−1. Subsequent annealing at 300°C improved the 175 W·m−1·K−1 without compromising strength. This improvement...
In this study, the hydrophobic modification of coal gasification fly ash (FA) was investigated given adverse effects surface hydrophilic structures on material field. The FA modified using stearic acid (SA), which successfully altered its structure. When contact angle S-FA increased from 23.4° to 127.2°, activation index 0 0.98, oil absorption decreased 0.564 g/g 0.510 g/g, and BET-specific area 13.973 m
A finite-element model for nonlinear analysis of reinforced concrete flat plate structures is presented. flexible layering scheme incorporating the transverse shear deformation formulated in shell element environment. Each node layered can be specified as either a normal or with correction. three-dimensional hypoelastic material implemented to concrete. The cracking effects tension softening, aggregate interlock, stiffening, and compression softening multidirectionally cracked are...
The samples of the Al-15Fe (mass%) binary alloy that were additively manufactured by laser powder bed fusion (L-PBF) exposed to intermediate temperatures (300 and 500 °C), thermally induced variations in their microstructural characteristics investigated. L-PBF-manufactured sample was found have a microstructure comprising stable θ-Al13Fe4 phase localized around melt-pool boundaries several spherical metastable Al6Fe-phase particles surrounded nanoscale α-Al/Al6Fe cellular structure melt...
As-cast beryllium-aluminum (Be-Al) alloy exhibits a coarse microstructure with pore defects due to large solidification interval, greatly limiting its mechanical properties. In this research, the relationship between laser surface remelting process and hardness of as-cast Be-Al-Sc-Zr was established. The experimental results demonstrated that pore-free refined remelted layer obtained by controlling parameter effective energy input. consisted equiaxed grains Al phase forming continuous frame...
Centimeter-sized samples of hypereutectic Al–15 mass% Fe alloy were manufactured by a laser powder bed fusion (L-PBF) process while systematically varying power (P) and scan speed (v). The effects on relative density melt pool depth L-PBF-manufactured investigated. In comparison with other Al alloys, small window P = 77–128 W v 0.4–0.8 ms−1 was found for manufacturing macroscopically crack-free samples. A higher led to the creation macroscopic cracks propagating parallel powder-bed plane....
A balloon dilatation catheter is a vital tool in percutaneous transluminal angioplasty. Various factors, including the material used, influence ability of different types balloons to navigate through lesions during delivery.Thus far, numerical simulation studies comparing impacts materials on trackability catheters has been limited. This project seeks unveil underlying patterns more effectively by utilizing highly realistic balloon-folding method compare made from materials.Two materials,...
Red mud (RM), a bauxite residue, contains hazardous radioactive wastes and alkaline material poses severe surface water groundwater contamination risks, necessitating recycling. Pretreated RM can be used to make adsorbents for treatment. However, its performance is affected by many factors, resulting in nonlinear correlation coupling relationship. This study aimed identify the best formula an adsorbent using mathematical model that examines relationship between 11 formulation types (e.g.,...
The addition of Mn in Al–Fe alloys stabilizes the Al6Fe metastable phase (orthorhombic structure, oC28) owing to partial occupation Fe sublattice sites by atoms (formation Al6(Fe, Mn) phase), thereby achieving superior high-temperature strength Al–Fe–Mn ternary that are manufactured via laser powder bed fusion (L-PBF) process. This study aimed fundamentally understand thermal stability refined formed L-PBF fabricated Al–2.5%Fe–2%Mn alloy terms a thermodynamic approach and kinetics...