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Liu, Y. (author), Frederik, J.A. (author), Ferrari, Riccardo M.G. (author), Wu, P. (author), Li, Sunwei (author), van Wingerden, J.W. (author)Individual pitch control (IPC) is an effective and widely used strategy to mitigate blade loads in wind turbines. However, conventional IPC fails to cope with blade and actuator faults, and this situation may lead to an emergency shutdown and increased maintenance costs. In this paper, a fault-tolerant individual pitch control (FTIPC) scheme...journal article 2021
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Wu, C. (author), Pan, W. (author), Sun, Guanghui (author), Liu, Jianxing (author), Wu, Ligang (author)This paper investigates the problem of optimal tracking control for cyber-physical systems (CPS) when the cyber realm is attacked by denial-of-service (DoS) attacks which can prevent the control signal transmitting to the actuator. Attention is focused on how to design the optimal tracking control scheme without using the system dynamics and...journal article 2021
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Li, Shijie (author), Liu, Jialun (author), Negenborn, R.R. (author), Wu, Qing (author)Autonomous shipping refers to the ability of a ship to independently control its own actions while transporting cargo from one port to another, which places higher requirements on ship motion control methods. When a ship enters a port, it is important to ensure that the ship sails from the fairway area to the assigned position at the berth...journal article 2020
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Cao, Pinqiang (author), Ning, Fulong (author), Wu, Jianyang (author), Cao, Boxiao (author), Li, Tianshu (author), Sveinsson, Henrik Andersen (author), Liu, Z. (author), Vlugt, T.J.H. (author), Hyodo, Masayuki (author)Water ice and gas hydrates can coexist in the permafrost and polar regions on Earth and in the universe. However, the role of ice in the mechanical response of ice-contained methane hydrates is still unclear. Here, we conduct direct million-atom molecular simulations of ice-contained polycrystalline methane hydrates and identify a crossover...journal article 2020
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Liu, S. (author), Ye, Qinghua (author), Wu, Shiqiang (author), Stive, M.J.F. (author)As the third largest fresh water lake in China, Taihu Lake is suffering from serious eutrophication, where nutrient loading from tributary and surrounding river networks is one of the main contributors. In this study, water age is used to investigate the impacts of tributary discharge and wind influence on nutrient status in Taihu Lake,...journal article 2020
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Liu, Y. (author), Fontanella, A. (author), Wu, P. (author), Ferrari, Riccardo M.G. (author), van Wingerden, J.W. (author)Floating Offshore Wind Turbines (FOWTs) are more prone to suffer from faults and failures than bottom-fixed counterparts due to the severe wind and wave loads typical of deep water sites. In particular, mooring line faults may lead to unacceptably high operation and maintenance costs due to the limited accessibility of FOWTs. Detecting the...journal article 2020
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Liu, K. (author), Ma, M. (author), Wu, Longfei (author), Valenti, M. (author), Cardenas-Morcoso, Drialys (author), Hofmann, Jan P. (author), Bisquert, Juan (author), Gimenez, Sixto (author), Smith, W.A. (author)Au-Cu bimetallic thin films with controlled composition were fabricated by magnetron sputtering co-deposition, and their performance for the electrocatalytic reduction of CO <sub>2</sub> was investigated. The uniform planar morphology served as a platform to evaluate the electronic effect isolated from morphological effects while minimizing...journal article 2019
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Wu, Dequan (author), Zhang, D. (author), Ye, Yuwei (author), Ma, Lingwei (author), Minhas, Badar (author), Liu, Bei (author), Terryn, H.A. (author), Mol, J.M.C. (author), Li, Xiaogang (author)Recently, lubricant-infused surfaces (LIS) have emerged as a prominent class of surface technology for antifouling, anti-icing and anticorrosion applications. However, long-term corrosion exposure and mechanical damages may deteriorate the practical performance of LIS during application. In this study, a robust LIS was fabricated by the...journal article 2019
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Hong, Hao (author), Sun, J. (author), Wu, Cinan (author), Liu, Zewen (author)High performance mixed potential type NO<sub>2</sub> sensors using porous yttria-stabilized zirconia (YSZ) layers doped with different concentration graphite as solid electrolyte and LaFeO<sub>3</sub> as sensing electrode were fabricated and characterized. LaFeO<sub>3</sub> was prepared by a typical citrate sol–gel method and characterized...journal article 2019
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Wang, L. (author), Wu, Qing (author), Liu, Jialun (author), Li, Shijie (author), Negenborn, R.R. (author)At present, with the development of waterborne transport vehicles, research on ship faces a new round of challenges in terms of intelligence and autonomy. The concept of maritime autonomous surface ships (MASS) has been put forward by the International Maritime Organization in 2017, in which MASS become the new focus of the waterborne...journal article 2019
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Wang, L. (author), Wu, Qing (author), Liu, Jialun (author), Li, Shijie (author), Negenborn, R.R. (author)Intelligent motion control is one of the key technologies of ships. This paper studies the application of Adaptive Mutation Beetle Particle Swarm (AMBPS)-PID algorithm in ship motion control. Firstly, the ship MMG model is established. Then the BAS algorithm is introduced, and AMBPS algorithm is improved and designed on this basis. Secondly,...journal article 2019
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Tong, Ruipeng (author), Zhai, Cunli (author), Jia, Qingli (author), Wu, Chunlin (author), Liu, Y. (author), Xue, Surui (author)In order to explore optimal strategies for managing potential human risk factors, this paper developed an interactive model among potential human risk factors based on the development processes of accidents. This model was divided into four stages, i.e., risk latency stage, risk accumulation stage, risk explosion stage and risk residue stage....journal article 2018
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Wang, Weiming (author), Liu, Yong-Jin (author), Wu, J. (author), Tian, Shengjing (author), Wang, C.C. (author), Liu, Ligang (author), Liu, Xiuping (author)Offsetting-based hollowing is a solid modeling operation widely used in 3D printing, which can change the model's physical properties and reduce the weight by generating voids inside a model. However, a hollowing operation can lead to additional supporting structures for fabrication in interior voids, which cannot be removed. As a consequence...journal article 2018
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Yi, Ran (author), Wu, Chenming (author), Liu, Yong-Jin (author), He, Ying (author), Wang, C.C. (author)This paper presents a 3-D printing system that uses a low-cost off-the-shelf consumer projector to fabricate large models. Compared with traditional digital light processing (DLP) 3-D printers using a single vertical carriage, the platform of our DLP 3-D printer using delta mechanism can also move horizontally in the plane. We show that this...journal article 2018
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Wu, Jibing (author), Yu, Lianfei (author), Zhang, Qun (author), Shi, P. (author), Liu, Lihua (author), Deng, Su (author), Huang, Hongbin (author)The heterogeneous information networks are omnipresent in real-world applications, which consist of multiple types of objects with various rich semantic meaningful links among them. Community discovery is an effective method to extract the hidden structures in networks. Usually, heterogeneous information networks are time-evolving, whose objects...journal article 2018
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Liu, S. (author), Ye, Qinghua (author), Wu, Shiqiang (author), Stive, M.J.F. (author)Wind induced hydrodynamic circulations play significant roles in the transport and mixing process of pollutants and nutrients in large shallow lakes, but they have been usually overlooked, while environmental, biological, and ecological aspects of eutrophication problems get the most focus. Herein we use a three-dimensional model, driven by...journal article 2018
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Liu, Xiuping (author), Lin, Liping (author), Wu, J. (author), Wang, W. (author), Yin, Baocai (author), Wang, C.C. (author)Wireframe models are becoming a popular option in 3D printing. Generating sparse wireframe models using classic mesh simplification methods leads to models that require a lot of support structures in the layer-upon-layer additive process. In this paper we present a mesh simplification method that takes into account the overhang angle....journal article 2018
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Liu, Y. (author), van Nederveen, G.A. (author), Wu, Chunlin (author), Hertogh, M.J.C.M. (author)BIM (building information modeling) can be the basis for carrying out various performance analyses. Sustainable infrastructure rating systems are suitable tools for assessing an infrastructure’s environmental performance. It is necessary to integrate them in the design process. The research adopted a thorough literature review to follow the...journal article 2018
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Dai, C. (author), Wang, C.C. (author), Wu, Chenming (author), Lefebre, Sylvain (author), Fang, G. (author), Liu, Yong-Jin (author)This paper presents a new method to fabricate 3D models on a robotic printing system equipped with multi-axis motion. Materials are accumulated inside the volume along curved tool-paths so that the need of supporting structures can be tremendously reduced - if not completely abandoned - on all models. Our strategy to tackle the challenge of...journal article 2018
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Mei, Ran (author), Nobu, Masaru K. (author), Narihiro, Takashi (author), Kuroda, Kyohei (author), Muñoz Sierra, Julian (author), Wu, Zhuoying (author), Ye, Lin (author), Lee, Patrick K.H. (author), Lee, P.H.L. (author), van Lier, J.B. (author), McInerney, Michael J. (author), Kamagata, Yoichi (author), Liu, Wen Tso (author)Anaerobic digester (AD) microbiomes harbor complex, interacting microbial populations to achieve biomass reduction and biogas production, however how they are influenced by operating conditions and feed sludge microorganisms remain unclear. These were addressed by analyzing the microbial communities of 90 full-scale digesters at 51 municipal...journal article 2017