A5056400487- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetic properties of thin films
- Intermetallics and Advanced Alloy Properties
- Advanced materials and composites
- Magnetic Properties and Applications
- Magnetic Properties of Alloys
- MXene and MAX Phase Materials
- High-Temperature Coating Behaviors
- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- Additive Manufacturing and 3D Printing Technologies
- Solidification and crystal growth phenomena
- Privacy-Preserving Technologies in Data
- Engineering Education and Technology
- Technology Assessment and Management
- IoT and Edge/Fog Computing
- Transportation Systems and Logistics
- Sparse and Compressive Sensing Techniques
- Image Enhancement Techniques
- Additive Manufacturing Materials and Processes
- Digital Transformation in Industry
- Pesticide Residue Analysis and Safety
- Advanced Image and Video Retrieval Techniques
- Stochastic Gradient Optimization Techniques
Nanjing University of Aeronautics and Astronautics
2014-2024
Changchun University
2024
Northwestern Polytechnical University
2018
Ministry of Education of the People's Republic of China
2017
A Ti3C2 MXene/Ti composite powder was developed through surface modification and coating for producing a high-performance titanium matrix composites (TMCs) by laser power bed fusion. Introducing MXene rarely changed the original sphericity flowability of Ti while it slightly enhanced absorption capacity powder. The printing conditions in turn affected morphology distribution as-printed composites. At optimised parameters, majority with high structural integrity uniform remained along grain...
The digital twin can be seen as the link between physical and worlds, has received widespread attention both at home abroad. By establishing an accurate model of entity communication relationship model, mapped in directions, so that modified continuously using data entity. after diagnosing, predicting evaluating, output simulation results to controller for state control entity, thus achieving consistency This paper first analyzes basic concepts twin. It then introduces necessity aerospace...
In recent years, UAV-assisted mobile edge computing (MEC) has attracted significant attention. However, it is still challenging to dispatch a UAV accompany ground vehicles and provide both communication computation support in highly dynamic environment with various constraints on mobility, coverage, resources. This study delves into novel, low-complexity, long-term vehicular cooperative problem, examining the reciprocal impact of vehicles' flight/driving trajectories complementary...
A quantitative phase field model is developed to simulate dendrite morphology and solute distributions of the Al–4 wt-% Cu alloy in Gas Tungsten Arc Welding (GTAW) welding molten pool under transient conditions. The functions temperature gradient travel velocity are used obtain conditions pool. Time evolutions morphology, different positions interfaces obtained. growth process can be divided into four stages, namely linear growth, non-linear competitive short-term steady growth....
To solve the poor tribological property of γ-TiAl alloy, duplex treatment plasma carburisation on alloying with tungsten was conducted by double glow surface technique. The results indicated layer consisted TiC and W 2 C phase, metallurgically adhered to substrate. In terms H/E H 3 /E ratios, treated specimen nearly three times larger than untreated specimen. wear specimens tested a pin-on-disk tribometer rubbing against Si N 4 ceramic ball. rate duplex-treated is 1·056×10 −4 mm −1 m , which...
The bit metric is used for soft-decision decoding in bit-interleaved coded modulation (BICM) systems. complexity of generation increases rapidly high-order modulation. Proposed a nonlinear function and recursive formula to generate the pulse amplitude (PAM) signal with any order. This method can reduce computational greatly has similar performance compared optimal metric. also be quadrature which decomposed into two independent PAM signals.
The structure, magnetic properties and magnetostriction of high-pressure synthesized Pr1−xDyx(Fe0.8Co0.2)1.93 compounds were investigated. These compounds, which could not be readily under ambient pressure, exhibit single cubic Laves phase owing to the effects annealing. Curie temperature increases with increasing x, indicating that 3d-4f coupling becomes stronger increase Dy concentration. saturation magnetization decreases can ascribed competition sublattice magnetization. easy direction...
Primary dendrite arm spacing in tungsten inert gas welding pool for Al–4wt%Cu alloys is predicted by a quantitative phase-field model. Transient conditions are obtained functions of thermal gradient and solidification rate. When the same power given 3500 W different velocities 1.5, 2.0 2.5 mm s −1 , primary simulation results largest under velocity . 3500, 4000 5000 W, acquired W. morphology agrees well with experimental findings.
A fault detection and diagnosis (FDD) method is proposed by combining transfer entropy (TE) signed digraph (SDG). Given process historical data, used to construct a SDG model represent causal relationship between variables. severity evaluation then based on the modified model, where nodes can take values of (0), (±1), (±3) (±6). Then, an index named DoF developed measure severity. The application results verify effectiveness feasibility method.
Wireless communication provides a wide coverage at the cost of exposing information to unintended users. Thus, security issues in wireless are drawing more and attentions. Directional Modulation (DM) is an emerging technology for securing physical layer. The promising offers by transmitting digitally modulated signals along a-prior assigned directions while simultaneously distorting constellation formats same all other directions. In this paper, we employ weighted fractional Fourier...
The laser-melting process of SiC nano-particles coated on the plasma sprayed WC-Co coating was performed. nanocomposite prepared, and microstructure mechanical properties it were investigated. After laser irradiated, parts nano particles are turned into inner with nano-micro composite structure. being in brings better fine higher densification. wear-resistant property corrosion-resistant improved more than coatings prepared by melting without nano-particles.