Xiaodan Ren
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View article: Multi-Resolution Training-Enhanced Kolmogorov-Arnold Networks for Multi-Scale PDE Problems
Multi-Resolution Training-Enhanced Kolmogorov-Arnold Networks for Multi-Scale PDE Problems Open
Multi-scale PDE problems present significant challenges in scientific computing. While conventional MLP-based deep learning methods exhibit spectral bias in resolving multi-scale features, the physics-informed Kolmogorov-Arnold network (PI…
View article: Research on a Damage Assessment Method for Concrete Components Based on Material Damage
Research on a Damage Assessment Method for Concrete Components Based on Material Damage Open
With the popularization of the concept of seismic performance-based design, the correct and quantitative evaluation of post-earthquake damage to structural components has become a research focus. Referring to the concrete constitutive rela…
View article: Global Stress Generation and Spatiotemporal Super-Resolution Physics-Informed Operator under Dynamic Loading for Two-Phase Random Materials
Global Stress Generation and Spatiotemporal Super-Resolution Physics-Informed Operator under Dynamic Loading for Two-Phase Random Materials Open
Material stress analysis is a critical aspect of material design and performance optimization. Under dynamic loading, the global stress evolution in materials exhibits complex spatiotemporal characteristics, especially in two-phase random …
View article: Microstructure reconstruction of 2D/3D random materials via diffusion-based deep generative models
Microstructure reconstruction of 2D/3D random materials via diffusion-based deep generative models Open
Microstructure reconstruction serves as a crucial foundation for establishing process–structure–property (PSP) relationship in material design. Confronting the limitations of variational autoencoder and generative adversarial network withi…
View article: Microstructure reconstruction of 2D/3D random materials via diffusion-based deep generative models
Microstructure reconstruction of 2D/3D random materials via diffusion-based deep generative models Open
Microstructure reconstruction serves as a crucial foundation for establishing Process-Structure-Property (PSP) relationship in material design. Confronting the limitations of variational autoencoder and generative adversarial network withi…
View article: Probabilistic Modeling for Cementitious Materials Based on Data of Nanoindentation
Probabilistic Modeling for Cementitious Materials Based on Data of Nanoindentation Open
By introducing probabilistic modeling approaches, the interface transition zone (ITZ) and the bulk paste (BP) of concrete are investigated on the basis of the nanoindentation results, especially with respect to the relationship between the…
View article: Probabilistic Analysis of RC Doubly Curved Shells under Strong Ground Motions
Probabilistic Analysis of RC Doubly Curved Shells under Strong Ground Motions Open
Recently there has been a growing trend for using RC thin shell structures such as doubly curved shells (DCS) to cover large column-free spaces.However, according to the investigation of the effects of the recent earthquakes, considerable …
View article: Stochastic Analysis of RC Rectangular Shear Wall Considering Material Properties Uncertainty
Stochastic Analysis of RC Rectangular Shear Wall Considering Material Properties Uncertainty Open
It is widely acknowledged that concrete's mechanical properties exhibit some degree of uncertainty due to many factors (e.g., the mix proportion, placing, curing, etc.).Therefore, it is crucial to consider such uncertainty when assessing t…
View article: The impact of perceived teacher support on Chinese junior high school students’ academic self-efficacy: The mediating roles of achievement goals and academic emotions
The impact of perceived teacher support on Chinese junior high school students’ academic self-efficacy: The mediating roles of achievement goals and academic emotions Open
Introduction Teacher support is an important external factor that influences students academic self-efficacy, however, the mechanisms of the two factors are not yet fully explored. The purpose of this study was to investigate whether achie…
View article: Safety and efficacy of sofosbuvir-velpatasvir: A meta-analysis
Safety and efficacy of sofosbuvir-velpatasvir: A meta-analysis Open
Introduction: The sofosbuvir-velpatasvir single-tablet regimen (Epclusa) is a newly FDA-approved inhibitor of hepatitis C virus (HCV). This meta-analysis aimed to investigate the safety and efficacy of velpatasvir-sofosbuvir in the treatme…
View article: A multi-scale framework for neural network enhanced methods to the solution of partial differential equations
A multi-scale framework for neural network enhanced methods to the solution of partial differential equations Open
In the present work, a multi-scale framework for neural network enhanced methods is proposed for approximation of function and solution of partial differential equations (PDEs). By introducing the multi-scale concept, the total solution of…
View article: Analytical Models of Concrete Fatigue: A State-of-the-Art Review
Analytical Models of Concrete Fatigue: A State-of-the-Art Review Open
Fatigue failure phenomena of the concrete structures under long-term low amplitude loading have attracted more attention. Some structures, such as wind power towers, offshore platforms, and high-speed railways, may resist millions of cycle…
View article: Damage Assessment of Reinforced Concrete Structures through Damage Indices: A State-of-the-Art Review
Damage Assessment of Reinforced Concrete Structures through Damage Indices: A State-of-the-Art Review Open
Due to the developments of computer science and technology in recent years, computer models and numerical simulations for large and complicated structures can be done. Among the vast information and results obtained from the analysis and s…
View article: Value of Anti-HBV in Serum Tested by ELISA3 in Diagnosis of Hepatitis B: A Meta-Analysis
Value of Anti-HBV in Serum Tested by ELISA3 in Diagnosis of Hepatitis B: A Meta-Analysis Open
e c t i v e : To systematically review the diagnostic value of anti-HBV in serum tested by the ELISA in patients with hepatitis B. Condition being studied: Hepatitis B virus (HBV) infection is A global public health problem.There are about…
View article: Introduction to the Special Issue Numerical Modeling and Simulation forStructural Safety and Disaster Mitigation
Introduction to the Special Issue Numerical Modeling and Simulation forStructural Safety and Disaster Mitigation Open
Cite This Article Ren, X., Huang, T. (2020). Introduction to the Special Issue Numerical Modeling and Simulation for Structural Safety and Disaster Mitigation. CMES-Computer Modeling in Engineering & Sciences, 124(2), 411–413.
View article: Physical Mechanism of Concrete Damage under Compression
Physical Mechanism of Concrete Damage under Compression Open
Although considerable effort has been taken regarding concrete damage, the physical mechanism of concrete damage under compression remains unknown. This paper presents, for the first time, the physical reality of the damage of concrete und…
View article: Centrifuge Model Tests and Numerical Simulations of the Impact of Underwater Explosion on an Air-Backed Steel Plate
Centrifuge Model Tests and Numerical Simulations of the Impact of Underwater Explosion on an Air-Backed Steel Plate Open
Damage and threats to hydraulic and submarine structures by underwater explosions (UNDEXs) have raised much attention. The centrifuge model test, compared to prototype test, is a more promising way to examine the problem while reducing cos…
View article: Development and initial validation of a novel smoothed‐particle hydrodynamics‐based simulation model of trabecular bone penetration by metallic implants
Development and initial validation of a novel smoothed‐particle hydrodynamics‐based simulation model of trabecular bone penetration by metallic implants Open
A novel computational model of implant migration in trabecular bone was developed using smoothed‐particle hydrodynamics (SPH), and an initial validation was performed via correlation with experimental data. Six fresh‐frozen human cadaveric…