A5101494652- 3D Shape Modeling and Analysis
- Advanced Vision and Imaging
- Advanced Computational Techniques and Applications
- Additive Manufacturing Materials and Processes
- Environmental and Agricultural Sciences
- Welding Techniques and Residual Stresses
- Underwater Acoustics Research
- Neurological Disease Mechanisms and Treatments
- Advanced Welding Techniques Analysis
- Topological and Geometric Data Analysis
- Laser and Thermal Forming Techniques
- Evaluation and Optimization Models
- Semiconductor Lasers and Optical Devices
- Medical Imaging and Analysis
- Monoclonal and Polyclonal Antibodies Research
- Shape Memory Alloy Transformations
- Metaheuristic Optimization Algorithms Research
- Advanced Biosensing Techniques and Applications
- Advanced Multi-Objective Optimization Algorithms
- Advanced Decision-Making Techniques
- Advanced machining processes and optimization
- Water Quality Monitoring and Analysis
- Model Reduction and Neural Networks
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Human Pose and Action Recognition
State Key Laboratory of Tribology
2024
Tsinghua University
2004-2024
Shanghai Micro Satellite Engineering Center
2023
China Geological Survey
2022
Shanghai Jiao Tong University
2022
Aerospace Research Institute of Materials and Processing Technology
2022
China University of Mining and Technology
2011
Heritage Christian University
2010
Jiaozuo University
2003
The low-temperature aging treatment at 250°C can significantly improve the tensile superelasticity of NiTi alloys fabricated by electron beam directed energy deposition (EB-DED). However, it requires a very long duration (up to 200 h) achieve excellent due inherent coarse grain size. To accelerate process, high-density dislocations are introduced artificial thermal cycling prior (the original dislocation content in EB-DED processed is low), which will promote subsequent uniform precipitation...
Increasing welding speed can promote the productivity of laser welding. However, humping defects often occur, which limits application this strategy. The existing explanations for formation remain vague, and mitigation suppression methods are limited. In research, high-speed imaging experiments numerical simulation process performed. Through careful examination, phenomenon is explained. At high speed, melt flow caused by recoil pressure hindered solidified region in pool, leading to...
Groundwater overexploitation and loading of buildings have been the main factors triggering land subsidence along west coast Bohai Bay, China, since 2000s. Uneven has causing damage to civil facilities, loss elevation, increasing risk flood seawater intrusion, threatening safety people’s lives property. This paper analyzed spatial temporal features coastal area from 2003 2010 2015 2020, respectively. The relations between initiating were explored. Then, simulation model was constructed...
Fast nondominated sorting genetic algorithm II (NSGA-II) is a classical method for multiobjective optimization problems and has exhibited outstanding performance in many practical engineering problems. However, the tournament selection strategy used reproduction NSGA-II may generate large amount of repetitive individuals, resulting decrease population diversity. To alleviate this issue, Lévy distribution, which famous excellent search ability cuckoo algorithm, incorporated into NSGA-II....
Phenomena of self-coherence and mutual-coherence the distributed fiber optic sensor based on principle polarized-mode coupling are analyzed. The inter ference characteristics measured by experiment validate theoretical analysis . spatial resolution is determined polarized dispersion coefficients polarization-maintaining spectral width light source. s 6cm.
Extracting parametric edge curves from point clouds is a fundamental problem in 3D vision and geometry processing. Existing approaches mainly rely on keypoint detection, challenging procedure that tends to generate noisy output, making the subsequent extraction error-prone. To address this issue, we propose directly detect structured edges circumvent limitations of previous point-wise methods. We achieve goal by presenting NerVE, novel neural volumetric representation can be easily learned...
The morphologies of roll surfaces are modified with pulsed Nd:YAG laser and characterized by topography measuring instrument (WYKO-16 DRT2TC). Sombrero shaped bumps diameters 230-250 /spl mu/m heights 2-4 produced out focus beam. A quantitative model is proposed to predict the bump formation during martensitic transformation. results show: height caused transformation very small. key factor macroscopic on surface texturing tension molten metal.
The Current domestic production enterprises of disposable syringe in all packaging chain for artificial fill, and complete a thermal sealing, need to be done sterile environment down. Due the low machining efficiency, lot operation, it is difficult ensure that quality product uniform manufacturing, not conformity with medical devices industry, industry standards fyrogen-free. In order overcome these shortcomings, we developed "disposable filler", applied national invention patent (patent...
Aiming at the envelope constraint problem of carrier rocket fairing, based on design idea orbit assembly and maintenance, in this paper a general scheme remote sensing large-platform satellite (RSLPS) that can realize large scale multi-load collaborative observation is proposed. The basic process introduced, composition, structural form technical principle universal interface design, micro vibration control thermal deformation load platform are expounded. proposed provides valuable choice...
In this paper, we tackle the challenging problem of 3D keypoint estimation general objects using a novel implicit representation. Previous works have demonstrated promising results for prediction through direct coordinate regression or heatmap-based inference. However, these methods are commonly studied specific subjects, such as human bodies and faces, which possess fixed structures. They also suffer in several practical scenarios where explicit complete geometry is not given, including...
The concept of topological persistence, introduced recently in computational topology, finds applications studying a map relation to the topology its domain. Since introduction, it has been extended and generalized various directions. However, no attempt made so far extend persistence generalization `maps' such as cocycles which are discrete analogs closed differential forms, well known geometry. We define notion for 1-cocycles this paper show how compute relevant numbers. It turns out that,...