A5013312481- Vibration Control and Rheological Fluids
- Fluid Dynamics and Vibration Analysis
- 3D Surveying and Cultural Heritage
- Seismic Performance and Analysis
- Remote Sensing and LiDAR Applications
- Advanced Image and Video Retrieval Techniques
- Automated Road and Building Extraction
- Seismic Imaging and Inversion Techniques
- Hydraulic and Pneumatic Systems
- Advanced Neural Network Applications
- Cellular and Composite Structures
- Advanced Algorithms and Applications
- Optical measurement and interference techniques
- Geophysical and Geoelectrical Methods
- Geophysics and Gravity Measurements
- Video Surveillance and Tracking Methods
- Reservoir Engineering and Simulation Methods
- Remote Sensing and Land Use
- Advanced Measurement and Detection Methods
- Medical Image Segmentation Techniques
- Advanced Optical Sensing Technologies
- 3D Shape Modeling and Analysis
- Robotics and Sensor-Based Localization
- Elasticity and Material Modeling
- Automotive and Human Injury Biomechanics
Sinopec (China)
2024
Chongqing Technology and Business University
2020-2024
Chongqing University
2018
State Key Laboratory of Remote Sensing Science
2016-2018
Beijing Normal University
2016-2018
Capital Normal University
2016
Harbin Engineering University
2015
China University of Petroleum, East China
2009
The ability to classify urban objects in large scenes from point clouds efficiently and accurately still remains a challenging task today. A new methodology for the effective accurate classification of terrestrial laser scanning (TLS) is presented this paper. First, order obtain complementary characteristics each 3-D point, set point-based descriptors recognizing constructed. This includes geometry captured using spin-image descriptor computed on three different scales, mean RGB colors...
Object detection is a challenging task in the field of remote sensing applications due to complex backgrounds and uncertain orientation targets. Compared with horizontal bounding box, oriented box can provide information while retaining true size. Most existing object methods are based on Faster-RCNN other one-stage that achieve real-time speed but have shortcomings localization accuracy. To further enhance performance methods, we propose an framework single shot detector, namely, anchor...
To reduce the cost of manually annotating training data for parsing outdoor scenes, we propose a supervised approach with automatically generating classifying 3-D point clouds large-scale urban scenes. In this approach, input cloud is aggregated into clusters, and disjoint set union issue combined geometric attributes each cluster to obtain object segments. The prior knowledge among different classes used label segments by using decision-tree model. Then, initialized samples are generated...
High viscosity linear polysiloxane magnetorheological fluid (HVLP MRF) was demonstrated with excellent suspension stability. Such material is suitable for application in the energy absorbers (MREAs) under axial impact loading conditions. On this basis, a new absorber incorporating radial valve high magnetic field utilization and corrugated tube proposed. In absorption applications where MREA rarely if ever used, our takes ultra-stable HVLP MRF as controlled medium order long-term For...
Magnetorheological (MR) energy absorbers (MREAs) have been extensively investigated as a means of dissipating impact and decreasing injury well used in wide range applications. When applied an accidental collision buffer, however, problems can arise owing to the inertia sudden impact. In this study, novel MREA with gradient resistance gap structure working wedge-shaped squeeze flow model high-viscosity linear polysiloxane-based MR fluid was developed. The has continuously changing internal...
Wide-angle lenses can be generally classified into two structures: a transmitted fish-eye structure and catadioptric with panoramic annular lens (PAL). Compared the former, latter exhibits better imaging capability for super-large field of view. However, PAL causes this type optical system to lose its ability in small view front lens. In study, novel extremely wide-angle is designed by combining structures. The integrates transmissive structures simultaneously observe fields complement each...
The quasi-static model, without considering the inertia effect, is usually used to design and evaluate magnetorheological energy absorbers (MREAs). Although model generally acceptable describe behavior of MREA operated at low velocity frequency, it not sufficient predict that under high-speed impact conditions. For this situation, we develop an analytical inclusive fluid Inertia as well Minor losses based on Bingham-plastic (called BPIM model). In particular, instead using area-averaged...
High-viscosity linear polysiloxane–based magnetorheological fluid features its excellent suspension stability. Few reports could be found for energy absorbers using such highly viscous but stable fluids as the controlled medium. This study presents a design strategy high-viscosity fluid–based absorber with multi-stage radial flow mode. The is based on Herschel–Bulkley model incorporating minor losses proposed in our prior work. optimal geometrical parameters were obtained by gradually...
As object detection is widely adopted in aerial images, scene texts and other fields, rotating plays an important role draws attention since it can provide highly accurate orientation scale information. In this article, we propose a novel simple baseline to effectively conduct detection. First, design brand-new representation for objects by using circle cut horizontal rectangle (CCH). The CCH ensures that the regression parameters will not exceed defined domain avoids vertex sorting, thus...
Feature-based remote sensing image registration methods have achieved great accomplishments. However, they faced some limitations of applicability, automation, accuracy, efficiency, and robustness for large high-resolution registration. To address the above issues, we propose a novel instance segmentation based framework specifically large-sized images. First, design an model on convolutional neural network (CNN), which can efficiently extract fine-grained instances as deep features local...
On the basis of horizontal well modeling with three layers, 3D finite element method is used to simulate response dual laterolog in wells. The results show that obviously influenced by borehole position target formation. When varies, nonthick formation changes. Under conditions different layer thicknesses and/or positions, responses wells are from vertical deep and shallow resistivity exhibits an apparent amplitude difference for noninvaded zone numerical simulation results, correction...
Accurate theoretical models play a key role in the development of magnetorheological energy absorbers (MREAs). Traditionally, apparent slip caused by non-uniformity interface (i.e., separation carrier fluid and magnetic particles at wall) working medium is often ignored for simplifying models. However, influence cross-sectional flow decreased accuracy damping force MREA applied impact absorption area. In this study, dynamic model with boundary condition radial-flow-based was proposed. The...
The accuracy of soft tissue deformation model greatly influences on the reality virtual surgery system. paper proposed a modeling method which combined truth data with least squares support vector machine (LSSVM), and established relation between pressed force by experiment data. Finally we used genetic algorithm to optimize parameters Least Squares Support Vector Machine(LSSVM) achieve simulation physical model. analysis multigroup identification results show based has higher stability reality.
The excellent suspension stability of the high-viscosity linear polysiloxane magnetorheological fluid (HVLP MRF) makes it a great controlled medium for energy absorbers (MREAs). In our previous work, Herschel-Bulkley flow model (HB model) was used to describe shear-thinning rheological behavior and establish dynamic an HVLP MRF-based MREA with radial mode. However, as established implicit, response time increased buffer effect degraded. To improve characteristics, explicit based on HB...