A5100354780- Aluminum Alloy Microstructure Properties
- Space Satellite Systems and Control
- Aluminum Alloys Composites Properties
- Inertial Sensor and Navigation
- Adaptive Control of Nonlinear Systems
- Robotics and Sensor-Based Localization
- Metallurgy and Material Forming
- Spacecraft Dynamics and Control
- Guidance and Control Systems
- Augmented Reality Applications
- Aerodynamics and Fluid Dynamics Research
- Advanced Vision and Imaging
- Fluid Dynamics and Turbulent Flows
- Astro and Planetary Science
- Target Tracking and Data Fusion in Sensor Networks
- Plasma and Flow Control in Aerodynamics
- Infrared Target Detection Methodologies
- Interconnection Networks and Systems
- Magnesium Alloys: Properties and Applications
- Interactive and Immersive Displays
- Computer Graphics and Visualization Techniques
- Supercapacitor Materials and Fabrication
- Planetary Science and Exploration
- Elevator Systems and Control
- Microstructure and mechanical properties
Beijing Institute of Technology
2007-2024
Shenzhen Technology University
2023-2024
Beijing Information Science & Technology University
2021-2024
China Aerospace Science and Technology Corporation
2024
Beijing Satellite Navigation Center
2023
Florida State University
2015-2023
Shanghai Power Equipment Research Institute
2023
PLA Academy of Military Science
2023
Jiangsu University of Technology
2023
China Academy Of Machinery Science & Technology (China)
2022
Accurately forecasting the impact of macroeconomic events is critical for investors and policymakers. Salient like monetary policy decisions employment reports often trigger market movements by shaping expectations economic growth risk, thereby establishing causal relationships between behavior. Existing methods typically focus either on textual analysis or time-series modeling, but fail to capture multi-modal nature financial markets relationship price movements. To address these gaps, we...
The nuclear reactor coolant pump (RCP) is the core piece of equipment a power plant (NPP). energy performance and internal flow characteristics RCPs are revealed by effective measurement methods, which helpful to understand mechanism RCPs. present work intended conduct an integrated study based on test Particle Image Velocimetry (PIV) flow-field non-contact RCP. In addition, prediction results different turbulence models compared with experimental in detail. Through numerical calculation...
A microgravity environment in space, the elasticity of tether, and complex flexible appendages make tethered-towing system a nonlinear underactuated system, which is sensitive difficult to stabilize. This letter develops controller based on wave propagation for tethered towing defunct satellites, carries out robustness analysis via numerical simulation.
With the continuous development of space industry, demand for low-gravity simulation experiments on ground spacecraft is increasing, to overcome gravity compensation tests. This paper presents a new system based suspension method. We used traditional PID control method with Radial Basis Function (RBF) neural network solve its constant-tension problem. The ant colony algorithm was find initial parameters in solution space. A self-adjusting strategy controller realized. results show that...
Aiming at the development of application massive and heterogeneous LEO constellations, influence typical perturbation forces on orbit prediction satellites different altitudes is analyzed. Firstly, main force model introduced. Then experiments for analyzing are designed. Finally, under durations by numerical analysis assessed systematically, with non-spherical gravitational field orders, ocean tide orders atmospheric density models were compared calculated. The research results show that...
For satellite interactions missions such as autonomous docking, the key to successful completion of these is autonomously and accurately detect targets' information. The with high precision requirement need not only obtain categories location target components but also high-level information corner point. In this paper, a detection (SCD) method based on improved CenterMask proposed, which state-of-the-art instance segmentation network, components. First, fully convolutional one-stage object...
The Network-on-Chip (NoC) paradigm has emerged as a revolutionary methodology in current System-on-Chips (SoCs) for integrating large number of processing elements single die. It the advantage enhanced performance, scalability and modularity, compared with previous bus-based communication architectures. Recently, A new Triplet-based Hierarchical Interconnection Network (THIN) been proposed. In this paper, we explore three-dimensional (3D) floor-planning THIN present two different...
Network-on-Chip (NoC) Router has an important impact on the network communication performance. High performance router will help to build a high-throughput, power-efficient and low-latency NoC. However, existing baseline of Triplet-based Hierarchical Interconnection Network (THIN) can not fully exert potential THIN because it does consider characteristic topology. This paper proposes topology-related express microarchitecture for THIN, named E-THIN. Four measures are taken optimize including...
Abstract The squeeze casting process is an advanced technology, which suitable for a wide range of alloys including Al-Cu-Mg alloys. high pressure in both refines the microstructure and enhances mechanical property heat transfer solidification are complex with chilling mould machine punch. This results inhomogeneous alloy. study focuses on distribution microstructure, chemical composition, hardness alloy along radial direction casting. composition area fraction eutectic phases characterized....
Molecular dynamics (MD) simulations are invoked to simulate the diffusion process and microstructural evolution at solid-liquid, cast-rolled Al-Cu interfaces. K-Means clustering algorithm is used identify formation composition of two types nanostructural features in Al-rich Cu-rich regions interface (i.e., intermetallic Al2Cu near Al4Cu9 interface). MD also assess effects annealing temperature on compositionally graded interfaces characterize mechanical strength It found that failure takes...
Structure from motion aims at estimating the cameras and sparse structure of scene globally, but approximation biases in bundle adjustment propagated errors among registered triangulated points reduce quality reconstruction. To improve accuracy reconstruction, authors present an efficient subgraph‐based approach to optimise visibility graph locally. The central idea is divide into well‐configuration subgraphs for partial based on a Markov random field, reconstruct dense local via multi‐view...
This paper explores the adaptation of two-colour principle to develop a high-speed colour temperature correlation system, which is able cover range that challenging achieve before. A digital camera has built in RGB filters. It possible measure from ratio intensity green and red pixels using based on expansion Plank's radiation law. In this study, experiments were carried out calibrated tungsten ribbon lamp can be tuned vary 1300 2200°C. Using very high shutter speed small aperture,...
In order to integrate seamlessly a virtual object in real scene augmented reality (AR) system, we need simulate the interactions of with illumination scene. Acquiring knowledge illuminant direction is crucial this work. We present novel approach for estimating from single image that illuminated by light source regardless it point or directional one. propose employ marker cube, which used register determine rigid transformation relating 2D images known 3D geometry, and Lambertian probe...
With a focus on crewed spaceflight and space station construction, this research developed high-accuracy inertia simulation system for the drive joints of transfer arm. To achieve objective, both mechanical electric methods were utilized. enhance dynamic characteristics system, rigorous model was developed, comprehensive controller, along with feedforward controller based structure invariance principle, designed. The results demonstrated that significantly enhances control performance...
Additive manufacturing (AM) or 3D printing is a promising industrial technology that enables rapid prototyping of complex configurations. Powder Bed Fusion (PBF) one the most popular AM techniques for metallic materials. Until today, only few metals and alloys are available AM, e.g. titanium alloys, common which Ti-6Al-4V. After optimization PBF parameters, with without post processing such as heat treatment hot isostatic pressing, printed alloy can easily reach tensile strengths over 1100...