A5101652667- Advanced Measurement and Metrology Techniques
- Advanced Numerical Analysis Techniques
- Advanced machining processes and optimization
- Graph theory and applications
- Optical measurement and interference techniques
- Synthesis and Properties of Aromatic Compounds
- Surface and Thin Film Phenomena
- Force Microscopy Techniques and Applications
- Surface Roughness and Optical Measurements
- Manufacturing Process and Optimization
- Semiconductor materials and devices
- Advanced Vision and Imaging
- Advanced Surface Polishing Techniques
- Optical Imaging and Spectroscopy Techniques
- Computational Drug Discovery Methods
- Spinal Fractures and Fixation Techniques
- Human Motion and Animation
- Nanowire Synthesis and Applications
- Chemical and Physical Properties of Materials
- Robotics and Sensor-Based Localization
- Balance, Gait, and Falls Prevention
- Auction Theory and Applications
- Scientific Measurement and Uncertainty Evaluation
- Gas Sensing Nanomaterials and Sensors
- Winter Sports Injuries and Performance
Shanghai Jiao Tong University
2011-2025
Shanghai Eye Disease Prevention & Treatment Center
2025
Shanghai First People's Hospital
2025
Numerical Method (China)
2023-2024
Kunming University of Science and Technology
2021
Shanghai University
2018-2020
University of Mississippi
2020
Changchun University of Science and Technology
2015-2017
Central South University
2017
Technical University of Munich
2015
Abstract The chemical composition and structure of NiMo sulfides supported on γ‐Al 2 O 3 its properties for hydrogenation polyaromatic compounds is explored. presence Ni favors the formation disperse octahedrally coordinated Mo in oxide precursors facilitates reduction during sulfidation. This decreases particle size MoS (measured by transmission electron microscopy) increases concentration active sites up to a Ni/(Mo+Ni) atomic ratio 0.33. At higher loadings, did not decrease further,...
AIM: To assess the alterations in resting-state function connections between two cerebral hemispheres patients with optic neuritis (ON) and healthy controls (HCs). METHODS: A total of 12 ON (six males six females) HCs who were highly matched for sex, age, educational level recruited. They underwent functional magnetic resonance imaging (fMRI), testing brain activities assessed using degree centrality (DC) method. Correlation analysis mean DC values specific areas behavior performances was...
AIM: To investigate changes in local brain activity after laser assisted situ keratomileusis (LASIK) myopia patients, and further explore whether post-LASIK (POL) patients healthy controls (HCs) can be distinguished by differences dynamic amplitude of low-frequency fluctuations (dALFF) specific regions. METHODS: The resting-state functional magnetic resonance imaging (rs-fMRI) data were collected from 15 myopic who underwent LASIK matched controls. This method was selected to calculate the...
Extra steps have been found with atomic-force microscopy generated on rather flat silicon (100) surfaces annealed at 1200 \ifmmode^\circ\else\textdegree\fi{}C in hydrogen, through a comparison the surface argon, which exhibits typical (${S}_{a}+{S}_{b}$) step structure. It is suggested that extra are spontaneously due to relaxation of strain energy associated atomic dimers reconstructed surface.
A sub-block algorithm is usually applied in the super-resolution (SR) reconstruction of images because limitations computer memory. However, SR can hardly achieve a seamless image mosaicking uneven distribution brightness and contrast among these sub-blocks. An effectively improved weighted Wallis dodging proposed, aiming at characteristic that reconstructed are gray with same size overlapping region. This consistency contrast. Meanwhile, adjustment sequence presented to avoid spatial...
On-machine measurement (OMM) with a touch-trigger probe has been proved to be promising technology for machining error identification and compensation without involving re-fixturing positioning errors. Sampling strategy is therefore crucial accurate efficient surface inspection. Existing sampling strategies generally distribute sample points only based on the information of design surface. The might insufficient in defect areas, causing reconstructed could not represent actual well. In this...
Abstract Auctions have been shown to be able tackle the problem of spectrum scarcity effectively, but most existing works only focus on static scenarios. They cannot deal with requests users as they arrive and leave dynamically. Bidders can either cheat by bidding untruthfully or about arrival departure time. In this paper, we model radio allocation a sealed‐bid online combinatorial auction propose truthful mechanism called TRADE. TRADE is an individual rational polynomial time complexity....
A vicinal silicon (111) surface exhibits well defined single steps after being annealed at 1200 °C in hydrogen, which is sharp contrast with step bunches featuring the argon. As a temporary explanation for its ability to unzip bunches, we suggest that hydrogen destroys faulted triangles of [112̄] step, eliminates this kind and eventually leaves [1̄1̄2] alone behind on surface.
This article presents an approach to generate optimal couples of tool size and path for flank milling ruled surface with a conical cutter based on normal mapping, while at the same time keeping this within given bounded constraints. For initial pairs taper path, envelope is calculated. Then, axis trajectory related through mapping. On basis, correspondence between pair "design surface–envelope surface–tool surface" established, it used obtain signed error. By using error, optimization...
In this letter, we show that the misorientation of a vicinal (001) surface annealed in hydrogen is accommodated by pair near-Sa steps which are evolved two perpendicular {110} independently and coordinately. We demonstrate deviation orientation tiny area can be readily evaluated inspecting local variation step pair. finally indicate atomic on argon exhibit contrast, no conformity with towards an azimuth other than {110}.
Calibration plays a critically important role for improving the accuracy of industrial robots. Recently, position sensitive device (PSD) based calibration methods provide more efficient way to perform joint offset than conventionally used methods. We have proposed dual-PSD method accurately calibrate offsets However, required alignment laser beam shoot at two PSD centers was performed separately, which pre-know some parameters task. This paper proposes simultaneous without knowing these The...
Abstract The increasing demand for highly efficient and precise machining in the aerospace industry is leading to increasingly stringent requirements machine tool accuracy measurement compensation technologies. However, existing methods can only measure of tools after they have been shut down, using instruments that do not kinematic errors during process. To address this issue, a method real-time prediction five-axis has proposed enhance efficiency. employs neural network-based predictive...
Abstract This paper presents a kinematics detection and evaluation method for tool axis direction error of five-axis machine tools. By measuring the trajectory errors two center positions corresponding to different lengths, can be obtained by combining measurements. Compared with in ISO10791.6.2014 which only evaluate position single length, proposed infer processing accuracy lengths comprehensive flank milling. The is verified through simulations experiments on gantry tool.
A high-precision and efficient machining method of plane double enveloping hourglass worm is proposed. The tooth surface first created analyzed based on meshing theory. analysis reveals that the a developable ruled surface. This provides ability precise flank milling lines indicate contact cutter. five-axis tool path then generated according to lines. has obviously advantages in efficiency quality, compared with conventional end method. cutting simulation experiment validate proposed
LiMn 2 O 4 was synthesized by flameless solution combustion at 600°C for 3 hours (h). The influence of HNO on the morphologies, crystal structure and electrochemical performances material investigated. results show that main phase all products is , impurities are Mn or depending concentration (C HNO3 ). While C =0 15 mol L -1 impurity when concentrations from to 9 ; =12 product single phase; ≤12 with increase particles size grew 70-130 nm 140-500 nm, however, up become small (70-140 nm);...
Let Urn be the set of unicyclic graphs with n vertices and r pendent (namely, leaves), where ≥ 4 1. We consider signless Laplacian coefficients (SLCs) incidence energy (IE) in Urn. Firstly, among a subset which each graph has fixed odd girth g 3, + 1 1, we characterize unique extremal minimum SLCs IE. Secondly, if G 5, 7 then prove that Ln satisfies both IE are more than counterparts Ln.