Searched for:
(1 - 20 of 699)

Pages

document
Tao, Y. (author), Ersahin, M.E. (author), Ghasimi, S.M.D. (author), Ozgun, H. (author), Wang, H. (author), Zhang, X. (author), Guo, Miao (author), Yang, Yunfeng (author), Stuckey, David C. (author), van Lier, J.B. (author)
Anaerobic digestion (AD) has been commercially operated worldwide in full scale as a resource recovery technology underpinning a circular economy. However, problems such as a long start-up time, or system instability, have been reported in response to operational shocks. These issues are usually linked to the dynamics of the functional...
journal article 2020
document
Wang, H. (author)
Railway catenary is the main infrastructure that delivers electric power for train operation. It is a structure commonly constructed along the railway line with contact wires suspended above the track. One or multiple pantographs mounted on the roof of a moving train collects electric current from the catenary through the sliding contact with a...
doctoral thesis 2019
document
Li, Zongkun (author), Wang, Te (author), Ge, W. (author), Wei, Dong (author), Li, Hanyu (author)
Despite the fact that the Bayesian network has great advantages in logical reasoning and calculation compared with the other traditional risk analysis methods, there are still obvious shortcomings in the study of dynamic risk. The risk factors of the earth-rock dam breach are complex, which vary with time during the operation period. Static...
journal article 2019
document
Shen, X. J. (author), Li, D. Z. (author), Tang, S. (author), Chen, J. (author), Fang, H. (author), Wang, G. D. (author)
It is still a big challenge to obtain excellent low-temperature toughness for bulk steel materials. Delamination is an effective method to improve low-temperature toughness. In the present study, delamination toughening in a low carbon microalloyed steel plate with elongated and ultrafine-grained microstructure rolled in the dual-phase region...
journal article 2019
document
Liao, B. B. (author), Wang, D. L. (author), Hamdi, M. (author), Zheng, J. Y. (author), Jiang, P. (author), Gu, C. H. (author), Hong, W. R. (author)
This paper aims to characterize the damage mechanisms of 70 MPa Type IV hydrogen composite pressure vessels using the acoustic emission (AE) method. First, AE signals were captured during the 0–105 MPa and 0–158 MPa hydraulic tests of two vessels using multi-step loading method. Second, the AE feature parameters in time-domain and frequency...
journal article 2019
document
Wang, X. (author)
The swift growth of air traffic volume stresses the importance of flight safety enhancement. Statistical data shows that fly-by-wire technology with automatic flight control systems can effectively reduce the fatal accident rate of loss of control in-flight. Although the dynamics of an aircraft are nonlinear and time-varying, it is common...
doctoral thesis 2019
document
Wang, Q. (author), Wang, X. J. (author), Li, G. Q. (author), Liu, Y. (author)
Band segregation has been found in the H13 die steel produced by the electroslag remelting (ESR) technology. Chemical and metallographic studies have been carried out on a one ton ESR ingot of H13 die steel, so as to understand the formation mechanism of the band segregation. The results indicate that the T.O content and S content decreased...
journal article 2019
document
Liu, Faqi (author), Yang, Hua (author), Yan, R. (author), Wang, Wei (author)
The behaviour of square steel tube confined reinforced concrete columns after fire exposure was studied experimentally and numerically in this paper. Eighteen stub columns were first heated following the ISO 834 standard fire including both heating and cooling phases, and were subsequently loaded to failure after cooling to ambient temperature....
journal article 2019
document
Moreira Arouche, M. (author), Wang, W. (author), Teixeira De Freitas, S. (author), de Barros, Silvio (author)
The dissemination of composite materials introduces applications of hybrid structures with composite and metal parts. The development of reliable methodologies to evaluate the performance of these structures is required. In this work, the mixed-mode fracture behaviour of a bi-material adhesively bonded joint is investigated. A new strain...
journal article 2019
document
van der Cammen, T.J.M. (author), Wang, G. (author), Albayrak, A. (author)
contribution to periodical 2019
document
Wang, Anqi (author), Solomatine, D.P. (author)
Currently, practically no modeling study is expected to be carried out without some form of Sensitivity Analysis (SA). At the same time, there is a large number of various methods and it is not always easy for practitioners to choose one. The aim of this paper is to briefly review main classes of SA methods, and to present the results of the...
journal article 2019
document
Haus, Michael (author), Ding, Y. (author), Wang, Qing (author), Toivonen, Juhani (author), Tonetto, Leonardo (author), Tarkoma, Sasu (author), Ott, Jorg (author)
The number of deployed Internet of Things (IoT) devices is steadily increasing to manage and interact with community assets of smart cities, such as transportation systems and power plants. This may lead to degraded network performance due to the growing amount of network traffic and connections generated by various IoT devices. To tackle...
conference paper 2019
document
Wang, Y. (author)
Molecular self-assembly has been realized as a powerful approach to control the organization of materials from molecular to macroscopic length scale. While for a long time molecular self-assembly has focused on the investigation of systems involving a single component and under thermodynamic equilibrium. In recent years the interests are...
doctoral thesis 2019
document
Vuillot, C. (author), Asasi, Hamed (author), Wang, Y. (author), Pryadko, Leonid P. (author), Terhal, B.M. (author)
We examine the performance of the single-mode Gottesman-Kitaev-Preskill (GKP) code and its concatenation with the toric code for a noise model of Gaussian shifts, or displacement errors. We show how one can optimize the tracking of errors in repeated noisy error correction for the GKP code. We do this by examining the<br/>maximum-likelihood...
journal article 2019
document
Wang, H. (author)
Transition zones in railway tracks are locations with considerable changes in the vertical stiffness of the track support, which can be found near bridges, culverts and tunnels. In such locations, the stiffness variation and the differential settlement of tracks (uneven settlement of the track on the embankment and of the engineering structure)...
doctoral thesis 2019
document
Wang, J. (author), Yarovoy, Alexander (author)
In this paper, we propose an Elevation-Radial scanned Synthetic Aperture Radar (E-RadSAR) for forward-looking ground penetrating radar (GPR) imaging. The E-RadSAR exploits the advantages of both RadSAR and Elevation-Circular SAR (E-CSAR) by utilizing the SAR technique in the cross- and down-range directions for signal acquisition. It could be...
conference paper 2019
document
Zhang, H. (author), Liu, Y. (author), Wang, Lingen (author), Sun, Fenglian (author), Fan, Xuejun (author), Zhang, G.Q. (author)
The nanoindentation test was conducted in this paper to investigate the indentation hardness, plasticity and initial creep properties of pressure sintered nanosilver joint at various test temperatures. The effects of strain rate on the indentation hardness were first investigated. Then yield stress of nanosilver sintered joint was studied in...
journal article 2019
document
Wang, M. (author)
Improving efficiencies of thermal energy conversion systems is an important way to slow down global warming and mitigate climate change. Vapor absorption heat pump and refrigeration cycles are highly efficient ways of heating and cooling. These thermally activated systems also provide opportunities for the integration with a wide spectrum of low...
doctoral thesis 2019
document
Maan, D.C. (author), van Prooijen, B.C. (author), Wang, Z.B. (author)
We use the results of a one-dimensional morphodynamic model and the basis of the “Lagrangian equilibrium state” (Maan et al., 2015, https://doi.org/10.1002/2014JF003311) to derive a quantitative relationship between the progradation speed of tidal flats and the suspended sediment concentration in their adjacent waters and show that the speed...
journal article 2019
document
Wang, P. (author), Goverde, R.M.P. (author)
This paper proposes a novel approach for energy-efficient timetabling by adjusting the running time allocation of given timetables using train trajectory optimization. The approach first converts the arrival and departure times to time window constraints in order to relax the given timetable. Then a train trajectory optimization method is...
journal article 2019
Searched for:
(1 - 20 of 699)

Pages