A5029237484- Concrete and Cement Materials Research
- Innovative concrete reinforcement materials
- Fire Detection and Safety Systems
- Building materials and conservation
- Rock Mechanics and Modeling
- Teaching and Learning Programming
- Smart Materials for Construction
- Landslides and related hazards
- Advanced Neural Network Applications
- Online Learning and Analytics
- Autonomous Vehicle Technology and Safety
- Climate change and permafrost
- Anomaly Detection Techniques and Applications
- Cellular and Composite Structures
- Video Surveillance and Tracking Methods
- Lattice Boltzmann Simulation Studies
- Concrete Corrosion and Durability
- Materials Engineering and Processing
- Fire effects on concrete materials
- Advanced Materials and Mechanics
- Grouting, Rheology, and Soil Mechanics
- Educational Games and Gamification
- Advanced Computational Techniques and Applications
- Geotechnical Engineering and Analysis
- Concrete Properties and Behavior
Yulin University
2009-2024
Lanzhou University of Technology
2023-2024
Yangzhou Vocational University
2024
Education University of Hong Kong
2022-2024
Xi'an University of Science and Technology
2019-2020
Abstract Aeolian sand (AS) can become a green resource for concrete after the reasonable utilization. Study evolution of AS (ASC) capillary water absorption (CWA) under freeze–thaw (FT) conditions is great significance its popularization and application. One-dimensional (1D) CWA test was performed to analyze effects cycling (FTC) on characteristics. Pore relative saturation (PRS) pore were defined reveal influence mechanism content FT predict moisture distribution in damaged ASC combining...
It is highly significant to theoretically assess the effect, under load, of initial stress and structure on mass damage rock mass. In this reported study, first a multi-factor coupling constitutive model action joint-load was established by fully considering non-uniformity, anisotropy based Weibull distribution D-P criterion. The relationship between evolution joint angle in elaborated. Then, jointed strength criterion built line with limit state failure method multivariate function total...
To investigate the deterioration laws of concrete durability under coupling action salt erosion and drying–wetting cycles, this study evaluated macro–performance evolution different environments (NaCl, Na 2 SO 4 , MgSO ). Several measuring methods including nuclear magnetic resonance, computerized tomography tests, microscopic morphology analysis are employed to damage mechanism concrete. Experimental results show that with mass loss rate decreased first then increased, relative dynamic...
The aim of this study was to analyze the influence mechanism aeolian sand on mechanical property concrete and establish time‐varying compressive strength model. Test studies development concrete’s with from Mu Us Desert were carried out. Influence revealed by using nuclear magnetic resonance (NMR) pore ratio structures (ASC) X‐ray single crystal diffraction (XRD) calculate relative contents hydration products semiquantitatively. Results show that first increases then decreases increase...
The aim of this study was to reveal the macroscopic and mesoscopic deterioration behaviors concrete under coupling effect chlorine salt erosion freezing-thawing cycle. rapid test carried out in a 5% environment. characteristics were analyzed by testing mass, relative dynamic modulus elasticity, compressive strength different cycles. Using CT scanning technology three-dimensional reconstruction technology, pore structure, value, surface deviation before after analyzed. Based on changes solid...
Out-of-face gradient sandwich structures have been widely studied for their excellent impact resistance. One uniform and two out-of-plane cores are proposed based on the bionic structure of Royal Water Lily, midspan deflection back panel energy absorption under various blast loads studied. Two frequently adopted methods explosive loading applied to panels, responses contrasted as a time-dependent pressure history versus imposition initial velocity. The effect fluid–structure interaction is...
This article has been retracted. A retraction notice can be found at https://doi.org/10.3233/JIFS-219433.
Helmet detection is of great significance for realizing the automated management industrial safety. To address problem that existing object methods have insufficient ability to detect helmet small objects under surveillance images, this paper proposes a based on context enhancement pyramid images realize automatic task objects. The method helps network improve position localization small-scale by adding high-resolution layer YOLOv5. Also, proposed reduces semantic differences between...
Abstract Safety helmet detection is a hot topic of research in the field industrial safety for object technology. Existing methods still face great challenges small-scale object. In this paper, we propose method based on fusion semantic guidance and feature selection. The able to consider balance between performance efficiency. First, multi scale non-local module proposed establish internal correlations different scales deep image features as well aggregate context information guide recovery...
The objective of this study is to investigate the dynamic compressive mechanical properties concrete under combined effects freeze-thaw (F-T) and salt erosion. Split Hopkinson Pressure Bar (SHPB) test system was employed conduct compression tests on specimens subjected 0 ~ 250 cycles F-T in NaCl solutions with concentrations ranging from 0% 8%. influence strain rate, cycles, chloride concentration were analyzed, a constitutive model considering rate-dependency developed describe its...