document

Hygrothermal effects on fatigue delamination behavior in composite laminates

Yao, Liaojun (author), Wang, Jiexiong (author), He, Yonglyu (author), Zhao, Xiuhui (author), Chen, Xiangming (author), Liu, J. (author), Guo, Licheng (author), Alderliesten, R.C. (author)

Fatigue delamination growth (FDG) is an important failure in composite structures during their long-term operations. Hygrothermal aging can have significant effects on interlaminar resistance. It is therefore really necessary to explore FDG behavior in composite laminates with hygrothermal aging. Dynamic mechanical thermal analysis (DMTA),...

journal article 2024

document

Fast-charge high-voltage layered cathodes for sodium-ion batteries

Wang, Q. (author), Zhou, Dong (author), Zhao, C. (author), Wang, Jianlin (author), Guo, Hao (author), Wang, Liguang (author), Yao, Zhenpeng (author), Lu, Jun (author), Wagemaker, M. (author)

Sodium-ion batteries have not only garnered substantial attention for grid-scale energy storage owing to the higher abundance of sodium compared with lithium, but also present the possibility of fast charging because of the inherently higher sodium-ion mobility. However, it remains a phenomenal challenge to achieve a combination of these...

journal article 2024

document

Designing lithium halide solid electrolytes

Wang, Q. (author), Zhou, Yunan (author), Wang, Xuelong (author), Guo, Hao (author), Gong, Shuiping (author), Yao, Zhenpeng (author), Ganapathy, S. (author), Zhao, C. (author), Wagemaker, M. (author)

All-solid-state lithium batteries have attracted widespread attention for next-generation energy storage, potentially providing enhanced safety and cycling stability. The performance of such batteries relies on solid electrolyte materials; hence many structures/phases are being investigated with increasing compositional complexity. Among the...

journal article 2024

document

Increasing arsenic immobilization capacity of a binder prepared by arsenic-containing biohydrometallurgy waste: Effects of ferric/ferrous salts addition

Zhao, Yingliang (author), Sun, Yong (author), Guo, Z. (author), Sun, Xiaogang (author), Qiu, Jingping (author)

The aim of this study was to improve the immobilization capacity of a binder prepared from As-containing biohydrometallurgy waste (BAW) on arsenic (As) by modifying it with ferric/ferrous salts. The study investigated the chemical fractions of As and its leaching characteristics. Results indicated that the addition of ferric/ferrous salts...

journal article 2023

document

Data-driven ballast layer degradation identification and maintenance decision based on track geometry irregularities

Zhao, Wenbo (author), Qiang, Weile (author), Yang, Fei (author), Jing, Guoqing (author), Guo, Y. (author)

Ballast layer defects are the primary cause for rapid track geometry degradation. Detecting these defects in real-time during track inspections is urgently needed to ensure safe train operations. To achieve this, an indicator, the track degradation rate (TDR) was proposed. This rate is calculated using track geometry inspection data to locate...

journal article 2023

document

Immobilization capacity assessment of a binder from arsenic-containing biohydrometallurgy waste: Effects of halloysite nanotubes and biochar addition

Zhao, Yingliang (author), Sun, Yong (author), Guo, Z. (author), Sun, Xiaogang (author), Qiu, Jingping (author)

The aim of this study was to improve the immobilization capacity of a binder prepared from As-containing biohydrometallurgy waste (BAW) on arsenic (As) by modifying it with halloysite nanotubes (HNTs) and biochar (BC). The study investigated the influence of HNTs and BC on the chemical fractions and leaching characteristics of As, as well as...

journal article 2023

document

A laboratory evaluation of factors affecting rutting resistance of asphalt mixtures using wheel tracking test

Pan, Y. (author), Guo, Hui (author), Guan, Wei (author), Zhao, Yongli (author)

Rutting is one of the most common distresses in early damage to asphalt pavements. It can raise the risk of ride safety issues, accelerate pavement deterioration, and increase maintenance costs. To investigate the factors that affect the rutting resistance of asphalt mixtures, internal factors (such as aggregate gradation, asphalt content,...

journal article 2023

document

Slight Multielement Doping-Induced Structural Order-Disorder Transition for High-Performance Layered Na-Ion Oxide Cathodes

Guo, Hao (author), Zhao, C. (author), Gao, Jianxiang (author), Yang, Wenyun (author), Hu, Xufeng (author), Ma, Xiaobai (author), Jiao, Xuesheng (author), Yang, Jinbo (author), Sun, Kai (author), Chen, Dongfeng (author)

To realize concurrently the high-energy density and excellent cycling stability, maximum utilization of redox couple, minimization of detrimental phase transition, and structural degradation of O3-type layered oxide cathodes are critical for developing Na-ion batteries. Ni²⁺/Ni⁴⁺ redox couple showing multielectron...

journal article 2023

document

First-principles investigations of arsenate doping into the ettringite lattice

Zhao, Yingliang (author), Sun, Yong (author), Guo, Z. (author), Qiu, Jingping (author), Sun, Xiaogang (author)

Hazardous wastes are commonly immobilized using cementitious materials. Ettringite (Ca₆Al₂(OH)₁₂(SO₄)₃∙26H₂O) is one of the main components of hydrated cement and is known to stabilize anionic species. Thus, it is a promising material for the stabilization of arsenate (As(V))...

journal article 2023

document

Release behavior of soluble salts in MSWI bottom ash used as road basement materials under continuous rainfall conditions

Zhao, Lingqin (author), Zhang, Dongming (author), Hu, Yanjun (author), Guo, Qianqian (author), Jiao, Long (author), Zhou, Nan (author), Di Maio, F. (author)

The bottom ash is increasingly used as a substitute aggregate material in road construction in China, and road salting is the major salt source in groundwater. Continuous rainfall releases soluble salts from the bottom ash subgrade into the surrounding soil and groundwater, resulting in potential hazards. Different methods were employed to...

journal article 2023

document

Mapping knowledge domains for mine heat hazard: a bibliometric analysis of research trends and future needs

Zhao, Jiale (author), Yang, Fu Qiang (author), Guo, Yong (author), Ren, X. (author)

As the shallow mineral resources are nearly depleted, the mining of deep resources has become an urgent problem to be studied. The increase in mine depth can lead to the increase of mine heat hazard, which is a critical concern for mining safety/occupational health and safety. However, there are limited review articles available regarding the...

review 2023

document

Experimental study of quantum uncertainty from lack of information

Zhao, Yuan Yuan (author), Rozpedek, F.D. (author), Hou, Zhibo (author), Wu, Kang Da (author), Xiang, Guo Yong (author), Li, Chuan Feng (author), Guo, Guang Can (author)

Quantum uncertainty is a well-known property of quantum mechanics that states the impossibility of predicting measurement outcomes of multiple incompatible observables simultaneously. In contrast, the uncertainty in the classical domain comes from the lack of information about the exact state of the system. One may naturally ask, whether the...

journal article 2022

document

A CAST-Based Analysis of the Metro Accident That Was Triggered by the Zhengzhou Heavy Rainstorm Disaster

Zhao, Jiale (author), Yang, Fuqiang (author), Guo, Yong (author), Ren, X. (author)

Emergency management research is used to deal with the increasing number of extreme weather threats in urban areas. This paper uses causal analysis based on systems theory (CAST) to review the subway water ingress accident and the government's emergency management actions in Zhengzhou, Henan Province, during the heavy rainstorm disaster on 20...

journal article 2022

document

Numerical analysis of train-track-subgrade dynamic performance with crumb rubber in ballast layer

Guo, Y. (author), Shi, Can (author), Zhao, Chunfa (author), Markine, V.L. (author), Jing, Guoqing (author)

Crumb rubber (CR) has been proposed to apply in the ballast or sub-ballast layer for ballast degradation mitigation and vibration (noise) reduction. The CR can change the ballast layer stiffness, which can affect the train-track-subgrade dynamic performance and cause travel comfort and safety issues. Towards this, this study aims at...

journal article 2022

document

The Effect of Wet Treatment on the Distribution and Leaching of Heavy Metals and Salts of Bottom Ash from Municipal Solid Waste Incineration

Zhu, Yonghao (author), Hu, Yanjun (author), Guo, Qianqian (author), Zhao, Lingqin (author), Li, Lianming (author), Wang, Y. (author), Hu, Guixiang (author), Wibowo, Haryo (author), Di Maio, F. (author)

One of the main challenges of bottom ash reutilization is heavy metal and salts' leaching potential. The effect of wet treatment on chemical composition and leaching toxicity of bottom ash were investigated in this study to mitigate this leaching potential. Batch leaching and column leaching tests were first conducted to investigate the...

journal article 2022

document

Analysis of Railway Ballasted Track Stiffness and Behavior with a Hybrid Discrete-Continuum Approach

Shi, Can (author), Zhao, Chunfa (author), Yang, Yang (author), Guo, Y. (author), Zhang, Xu (author)

Railway ballasted track stiffness is an important indicator to identify supporting condition that ensures that the facility is well designed and functioned. Although many studies have been performed on track stiffness based on experimental tests and finite-element methods, the factors influencing the track stiffness have not been completely...

journal article 2021

document

Effect of ethanol concentration on methane hydrate decomposition: MD simulation insights

Sun, Xiaoliang (author), Zhou, Guanggang (author), Liu, Z. (author), Zhu, Jianwei (author), Guo, Fengzhi (author), Chen, Junqing (author), He, Wenhao (author), Wang, Ning (author), Zhao, Ge (author), Lu, Guiwu (author)

The controllability of mining is a key factor affecting the commercial application of methane hydrates, and the addition of chemical additives can significantly accelerate the mining process. However, the effect of additive concentration on hydrate decomposition is not yet well understood. In this study, we systematically investigate the...

journal article 2021

document

Coupled discrete-continuum approach for railway ballast track and subgrade macro-meso analysis

Shi, Can (author), Zhao, Chunfa (author), Zhang, Xu (author), Guo, Y. (author)

This paper presents a multi-layer railway ballast track and substructure model, where a coupled discrete and continuous method is used for macro-meso dynamic behaviour analysis under moving wheel loads. In this coupled model, the discrete element method (DEM) is utilised to build the superstructure of the ballast track (i.e. rail, fastener,...

journal article 2020

document

Calibration for discrete element modelling of railway ballast: A review

Guo, Y. (author), Zhao, Chunfa (author), Markine, V.L. (author), Jing, Guoqing (author), Zhai, Wanming (author)

The discrete element method (DEM) has been confirmed as an effective numerical method for modelling railway ballast, and successfully used to analyse a wide range of ballast-related applications (e.g. geomaterials). However, there still exists some aspects under development. Among them, the model calibration can be the most significant one ...

review 2020

document

Macro-meso dynamic analysis of railway transition zone: Hybrid DEM/FDM simulation and experimental validation

Shi, Can (author), Zhao, Chunfa (author), Yang, Yang (author), Guo, Y. (author), Zhang, Xu (author), Feng, Yang (author)

To probe into the mechanical behaviour of railway transition zone from the macro-meso aspects, a numerical model of transition zone is built that hybrids the Discrete Element Method (DEM) and Finite Difference Method (FDM). The DEM is utilised to simulate the ballast bed and sleeper, because it can consider the realistic ballast shapes and...

journal article 2020