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Sun, Yubo (author), Chen, Boyu (author), Zhang, Shizhe (author), Blom, Kees (author), Luković, Mladena (author), Ye, Guang (author)In recent years, the rapid industrialization and urbanization led to the explosive growth of municipal solid waste incineration (MSWI) bottom ashes (BA) production. However, most of them are directly landfilled, which not only brings environmental burden but also results in loss of potential resources. Present researches have proved that MSWI BA...conference paper 2021
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Fernandez Arguedas, V. (author), Zhang, Q. (author), Chandramouli, K. (author), Izquierdo, E. (author)In this paper, we present a part of surveillance centric indexing framework aimed at studying the performance of multi-feature fusion technique for indexing objects from surveillance videos. The multi-feature fusion algorithm determines an optimal metric for fusing low-level descriptors extracted from different feature space. These low-level...conference paper 2011
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Zhang, Z. (author), Qian, S. (author)Crack is called the intrinsic flaw of concrete that is inevitable for concrete infrastructures during their service life. The presence of crack offer aggressive agent access to pass through, which has a direct impact on durability, therefore resulting in shortened service life. Nevertheless, the influence of crack on the durability can be...conference paper 2013
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Xiong, L. (author), Xiong, W. (author), Zhang, H. (author)Gulou is a type of building found in ethnic Dong peoples settlements in south west China. It plays a significant role in the traditional Dong architecture and shows both social and technical values. In the near future the technique as an intangible culture heritage would face the risk of extinction because of globalization. The paper argues...conference paper 2013
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Danka, J. (author), Zhang, L. (author)Dike breaching parameters are important to support dike flood risk management, and can be estimated rapidly using empirical models. Due to the lack of dike specific models, sometimes models for man-made dams were used without validation. This paper compares relevant factors of dike, man-made dam and landslide dam breaches. With the aid of two...conference paper 2015
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Zhang, M.Q. (author), Rong, M.Z. (author)Autonomic self-healing thermosetting polymers or elastomers have been substantially studied, in which polymerization of the healing agents released from pre-embedded capsules serves as the key issue. As for thermoplastics, another major class of polymeric materials, however, researches on their self-healing approaches are less reported. Here in...conference paper 2013
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Zhang, J. (author), Guo, Y. (author)The purpose of this paper is to investigate the highly complex interaction between turbulent flow and deep-sea marina structure using a commercial CFD code (FLUENT 6.2) with Large Eddy Simulation (LES) approach. A series of three-dimensional LES of wake flows past overlapping cylinder of finite height are carried out with a range of Reynolds...conference paper 2006
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Miorini, R. (author), Zhang, C. (author), Katz, J. (author)Rough-wall turbulent channel flow is investigated via time-resolved tomographic particle image velocimetry (TPIV). To facilitate 3D measurements in the bulk flow as well as very close to the rough surface the optical refractive index of the transparent acrylic channel wall is matched with that of the liquid, a concentrated solution of sodium...conference paper 2013
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Wang, Yi (author), Zhang, Mingzhong (author)Strain hardening geopolymer composites (SHGC) as a tailored group of fibre reinforced geopolymer composites are featured by large tensile strain capacity with multiple micro-cracks. This paper experimentally investigates the strain hardening behaviour of SHGC in terms of flexural stress-deflection response, failure mode and cracking, flexural...conference paper 2021
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Zhai, Shengtian (author), Zhang, Yunsheng (author)Graphene cement-based composites have become a hot topic in current research because of its superior comprehensive performance. In this work, incorporation of different content of graphene in cement-based materials can significantly improve its compressive and flexural strength. Meanwhile hydration heat with different graphene content and times...conference paper 2021
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Zhang, Jingxiao (author), Ma, Yuwei (author), Zheng, Jiazheng (author)The widespread application of alkali-activated fly ash/slag (AAFS) concrete requires satisfaction of a series of performance criteria both from its early age properties (e.g. workability, strength) and long-term stability. In this study, long-term (till 180 days) natural chloride diffusion tests were conducted to evaluate the chloride diffusion...conference paper 2021
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Li, Zhenming (author), Wyrzykowski, Mateusz (author), Dong, Hua (author), Zhang, Shizhe (author), Lura, Pietro (author), Ye, Guang (author)Alkali activated slag (AAS) has shown promising potential to replace ordinary Portland cement as a binder material. Synthesized from industrial by-products, AAS can show high strength, thermal resistance and good durability. However, AAS has been reported to exhibit high autogenous shrinkage. Autogenous shrinkage is a critical issue for building...conference paper 2021
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Guo, Y. (author), Zhang, L. (author), Zhang, J. (author)This paper reports the results from a turbulent numerical modelling study on the free overfall in a rectangular channel. A wide range of model parameters (i.e. discrete square bar bed roughness, channel slope, and incoming upstream Froude number) is investigated. The water surface profiles, velocity fields and end-depth are simulated and...conference paper 2006
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Huang, H. (author), Zhang, D. (author)To date, the tunneling in China is experiencing an age of fast development for decades. The potential risks behind the huge amount of construction and operation works in China was first formally realized and managed after 2002. The transition of risk assessment from a qualitative manner to a quantitative manner is on the way from the research...conference paper 2015
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Zhang, H. (author), Schlangen, E. (author), Ge, Z. (author), Šavija, B. (author)Properties of concrete are, to a large extent, dependent on the properties of its binding constituent, hydrated cement paste. Therefore, knowledge of properties of hydrated cement paste is crucial for predicting concrete behaviour. This paper presents an experimentally informed approach for modelling elastic and transport properties of cement...conference paper 2021
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Zhang, L. (author), Yan, W.M. (author)Soil slopes are generally unsaturated in which the soil-water characteristic curve (SWCC) plays an important role in its hydro-mechanical response. The commonly used Mohr-Coulomb failure criterion in saturated soil mechanics could be extended to take SWCC into account which is then able to determine the shear strength of unsaturated soil. Like...conference paper 2015
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Zhang, L. (author), Li, X. (author), Li, D. (author), Zhou, C. (author)Important engineered slopes are often heavily instrumented and their performance routinely monitored through these instruments. The evaluation of the safety of the slopes based on the monitored information is however a challenge. A systematic method is presented in this paper for evaluating the slope safety by combining multi-source monitoring...conference paper 2015
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The validity of the recently proposed hypothesis that the influence of large-scale motions on the near-wall turbulence is quasisteady is investigated by quantitative comparisons with the data obtained by direct numerical simulations of a turbulent channel flow. Large-scale motions are filtered by a Fourier cut-off filter multi-objectively...conference paper 2015
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Huang, X. (author), Ma, Z. (author), Zhang, X. (author)This paper outlines the method of a block-structured adaptive mesh refinement (AMR) and its application to the computation of noise radiation from a realistic engine exhaust geometry with flow. The computational model described allows acoustic waves, propagating inside the bypass duct of a generic aircraft engine, to be admitted into a...conference paper 2006
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Zhang, Y. (author), Esteves, A.C.C. (author), Van der Ven, L.G.J. (author), Van Benthem, R.A.T.M. (author), De With, G. (author)Hydrophobic materials hold many properties that are desirable in coatings, e.g. water repellency and low-adhesion are essential to achieve an easy-to-clean/ self-cleaning behavior. However, most of the coatings currently available cannot maintain their hydrophobicity upon surface damage or wear, due to the irreversible loss of the low surface...conference paper 2013