A5010721431- Additive Manufacturing Materials and Processes
- Geophysical Methods and Applications
- Cryospheric studies and observations
- Diverse Musicological Studies
- Seismic Imaging and Inversion Techniques
- Additive Manufacturing and 3D Printing Technologies
- Music and Audio Processing
- Digital Media and Visual Art
- Advanced Image Fusion Techniques
- Arctic and Antarctic ice dynamics
- Winter Sports Injuries and Performance
- Advanced Image and Video Retrieval Techniques
- Advanced Algorithms and Applications
- Asphalt Pavement Performance Evaluation
- Flow Measurement and Analysis
- Radiation Detection and Scintillator Technologies
- 3D Surveying and Cultural Heritage
- Smart Materials for Construction
- Geophysical and Geoelectrical Methods
- Particle Detector Development and Performance
- Wind Energy Research and Development
- Ultrasonics and Acoustic Wave Propagation
- Porphyrin and Phthalocyanine Chemistry
- Advanced Vision and Imaging
- Wind and Air Flow Studies
Vladivostok State University
2024
Xinjiang Medical University
2024
Chongqing Institute of Green and Intelligent Technology
2023-2024
China Aerodynamics Research and Development Center
2018-2023
Fujian Agriculture and Forestry University
2021
Institute of Modern Physics
2021
Chinese Academy of Sciences
2021
University of Chinese Academy of Sciences
2021
State Administration of Cultural Heritage
2017-2020
University of New Brunswick
2004
The fabrication of high quality copper alloys using laser powder bed fusion (LPBF) technology remains challenging due to their low absorption and thermal conductivity. LPBF often involves intrinsic defects, such as rough surface internal pores, which largely deteriorate the performance as-built alloy components. Here we studied effect scanning speed on evolution morphologies pores LPBF-fabricated CuSn10 alloy. melt flow behaviors were by both experiments in situ observations where combined a...
Defects in the metal 3-D printing process exhibit randomness and low frequency, making them difficult to predict control. This severely hinders application of this technology critical industrial fields. Extracting useful features from massive monitoring data ensure forming quality has become a popular research direction for intelligent additive manufacturing practitioners. In study, coaxial machine vision system is utilized monitor entire melt track. More importantly, study constructed...
Ultrasonic tomography is a practical method to detect cracks or voids in nonmetallic materials. The typical inversion results were presented by grids based velocity map, and it can not characterized the rapid changes discontinuities defects area. When grid dense, solution non-unique, regularization stochastic induced solve it. However, constraint will induce subjective judgment thus distort results, using of highly computational cost. Both them inhibit in-situ application. Here we present...
Abstract Icing seriously endangers the operational safety of wind turbines, and there has been a lack research on quantitative detection early warning icing distribution blade. In order to address present state specific engineering problems method based external sensor installation is proposed for quantitatively monitoring blade through numerical simulation technology. Field tests were performed 1.5 2.0 MW turbines in icy weather. The detected thickness showed good agreement with field...
In current evaluation of ancient stone monuments, 2-D ultrasonic tomography is widely used. The detection result, however, has deviation in the location and shape since velocity voids cracks area change much more drastic than healthy parts. Base on homogeneous material assumption, a contour node representation therefore proposed fitting best defect location. With representation, quick ray tracing method proposed. This inverse problem solved under Bayesian framework which we use Markov chain...
The damage detection of the wind turbine (WT) blade is an important aspect its health situation monitoring. In order to catch small damages, it necessary stitch multi segment images obtain a high resolution image. image stitching, blurring carried out reduce influence noise. However, preprocessing may decrease amount feature points and cannot avoid interaction in background target parts. To overcome these problems, method based on removal proposed. idea carry segmentation get part, then...
Virtual machines as an execution paradigm suffer in performance due to the extra layer of abstraction that is introduced. A possible new solution relieve penalty utilize a co-designed virtual machine leverages combined benefits hardware and software. The feasibility such approach interesting challenge complex nature its resource requirements achieve gains. This paper discusses process undertaken prototype so rapidly determine suitability. From this complete implementation partition...
To explore the therapeutic mechanism of compound
Under the severe challenge of global energy shortage and climate warming, wind as a renewable has been paid more attention by all countries. With rapid development power in recent years, farms are built complex terrain areas. Since surface characteristics have great impact on small micro-scale field characteristics, it is necessary to obtain detailed information local guide accurate location selection turbines. To solve above problems, set numerical simulation methods established this paper,...
A new proximity algorithm for an active contour model is proposed in this paper. In order to derive a mathematical form of the energy, level set method employed. penalty term introduced make sure that function can be restricted interval [-1, 1]. By introducing term, energy still keeps convex and easy construct its minimization algorithms. Based on operator corresponding theories, we deduce minimize energy. Experimental results demonstrate powerful segmentation ability accuracy. And...
In most scenarios, a single feature or point movement is not enough to measure the similarity of rigid body movement. This paper exploited and expanded method, trajectory based on multiple features, proposed new one calculate with features instead feature. Our method integrates Canny edge detector Hough transform motions. The responsible for finding object boundaries in images. detects line segment end points body. And then, bodies determined according trajectory.