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Chu, Jifeng (author), Iulian Martin, Calin (author), Marynets, K. (author)We present here exact solutions to the equations of geophysical fluid dynamics that depict inviscid flows moving in the azimuthal direction on a circular path, around the globe, and which admit a velocity profile below the surface and along it. These features render this model suitable for the description of the Antarctic circumpolar current ...journal article 2023
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Cong, Yangfan (author), Yu, Suihuai (author), Chu, Jianjie (author), Su, Zhaojing (author), Huang, Y. (author), Li, Feilong (author)Eliciting user needs from mass online reviews is playing a significant role in the product iteration process. Efficient user needs elicitation does achieve considerable benefits for maintaining higher competitiveness and a speedier lifecycle. However, there is inevitably an online review scarcity about new products due to the short time on...journal article 2023
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Wang, Feifei (author), Hua, Yulin (author), Pan, Jiazheng (author), Zhou, Jie (author), Hea, Chiquan (author), Hofman, J.A.M.H. (author), Chu, Wenhai (author), van der Hoek, J.P. (author)In drinking water treatment plants (DWTPs), the widely used biological activated carbon filters (BACFs), as the last barrier before disinfection, can remove dissolved organic matter (DOM) known as precursors of disinfection by-products (DBPs). Whether phosphate addition can improve water purification and DBP control of BACFs is still...journal article 2023
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Zhang, Ruihua (author), Xiao, Rong (author), Wang, Feifei (author), Chu, Wenhai (author), Hu, Jinglong (author), Zhang, Yu (author), Jin, Wei (author), van der Hoek, J.P. (author), Xu, Zuxin (author)The illicit connection of sewage pipes to stormwater pipes commonly occurs in urban stormwater systems. This brings problems that sewage might be directly discharges into natural water and even drinking water sources without treatment, posing risks to ecological safety. Sewage contains various unknown dissolved organic matter (DOM), which could...journal article 2023
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Chu, Jifeng (author), Marynets, K. (author), Wang, Z. (author)We consider a nonlinear Neumann boundary value problem which is derived for the Antarctic Circumpolar Current. By the theory of topological degree, we prove the existence results for the problem with semilinear oceanic vorticity term. We also construct the approximate solutions for such a nonlinear model.journal article 2023
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Huang, Y. (author), Yu, Suihuai (author), Chu, Jianjie (author), Su, Zhaojing (author), Zhu, Yaokang (author), Wang, Hanyu (author), Wang, Mengcheng (author), Fan, Hao (author)Design knowledge is critical to creating ideas in the conceptual design stage of product development for innovation. Fragmentary design data, massive multidisciplinary knowledge call for the development of a novel knowledge acquisition approach for conceptual product design. This study proposes a Design Knowledge Graph-aided (DKG-aided)...journal article 2023
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Wu, Wentao (author), Chu, Liangyong (author), Garcia, Santiago J. (author), van der Zwaag, S. (author), Li, Ming (author), Shen, Liming (author), Bao, Ningzhong (author)In this paper, graphene oxide (GO) modified microcapsules have been developed for use in self-healing Cardanol-based epoxy anti-corrosion coatings on steel substrates. The microcapsules had a polymethyl methacrylate (PMMA) shell, covered with aminated GO flakes and contained either of the two complementary healing agents mixed with nanosized...journal article 2023
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Huang, Y. (author), Yu, S. Suihuai (author), Chu, J. Jianjie (author), Fan, H. Hao (author), Du, B. Bin (author)Cultural heritage management poses significant challenges for museums due to fragmented data, limited intelligent frameworks, and insufficient applications. In response, a digital cultural heritage management approach based on knowledge graphs and deep learning algorithms is proposed to address the above challenges. A joint entity-relation...journal article 2023
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Smeur, E.J.J. (author), de Croon, G.C.H.E. (author), Chu, Q. P. (author)The authors regret to inform that an incorrect transfer function was included in Eq. (12). The correct transfer function is: [Formula Presented] The selected gains were [Formula Presented]. This leads to a real pole at 0.964 and two complex poles at 0.965 ± 0.0445i. The difference of the model compared to the measured step response has now...journal article 2023
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He, Zhibo (author), Liu, Chenguang (author), Chu, Xiumin (author), Negenborn, R.R. (author), Wu, Qing (author)For the complex multi-ship encounter scenarios, this article proposes a dynamic collision avoidance path planning algorithm based on the A-star algorithm and ship navigation rules, namely Dynamic Anti-collision A-star (DAA-star) algorithm. A dynamic search mechanism of the DAA-star algorithm considering time factors is designed to enable the...journal article 2022
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Huang, Y. (author), Zhang, Ye (author), Pool, D.M. (author), Stroosma, O. (author), Chu, Q. P. (author)Nonlinear dynamic inversion (NDI) is a nonlinear feedback linearization technique that has been widely applied to flight control systems [1,2]. Using state feedback and the inverted nonlinear system dynamics, NDI can significantly reduce controller development costs by avoiding gain scheduling and Jacobian linearization at a multitude of...journal article 2022
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Ding, Wenlong (author), Wang, Y. (author), Chu, Pengzi (author), Chen, Feng (author), Song, Yongchao (author), Zhang, Ning (author), Lin, Dong (author)The rapid development of the economy has promoted the growth of freight transportation. The truck service areas on expressways, as the main places for truck drivers to rest, play an important role in ensuring the driving safety of trucks. If these service areas are constructed densely or provide a plentiful supply of parking areas, they are...journal article 2022
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Wang, Feifei (author), Pan, Jiazheng (author), Hu, Yulin (author), Zhou, Jie (author), Wang, Haoqian (author), Huang, Xin (author), Chu, Wenhai (author), van der Hoek, J.P. (author)Biological activated carbon (BAC) filtration is usually considered to be able to decrease formation potentials (FPs) of disinfection by-products (DBPs) in drinking water treatment plant (DWTP). However, BAC filters with long running time may release microbial metabolites to effluents and therefore increase FPs of nitrogenous DBPs with high...journal article 2022
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Lu, Hai (author), Yu, Ruyun (author), Zhu, Yan (author), He, Xiao (author), Liang, K. (author), Chu, William Cheng-Chung (author)Attribute-Based Encryption (ABE) plays an important role in current secure data sharing through fine-grained customizable policies. However, the existing ABE schemes only support simple predicates, = and ≠, but cannot express a more general membership predicates, ∈ and ∉, in policies. The low expressivity of ABE will enlarge the ciphertext...journal article 2022
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Chu, Jifeng (author), Marynets, K. (author)The aim of this paper is to study one class of nonlinear differential equations, which model the Antarctic circumpolar current. We prove the existence results for such equations related to the geophysical relevant boundary conditions. First, based on the weighted eigenvalues and the theory of topological degree, we study the semilinear case....journal article 2021
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Peng, Liqi (author), Wang, Feifei (author), Zhang, Di (author), Fang, Chao (author), van der Hoek, J.P. (author), Chu, Wenhai (author)The high chlorine dosages in wastewater treatment plants during the COVID-19 pandemic may result in increased formation of disinfection by-products (DBPs), posing great threat to the aquatic ecosystem of the receiving water body and the public health in the downstream area. However, limited information is available on the effect of biological...journal article 2021
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Bian, Dong (author), Zhou, Xiaochen (author), Liu, Jianing (author), Li, Wenting (author), Shen, Danni (author), Zheng, Yufeng (author), Gu, Wenda (author), Jiang, Jingjun (author), Li, Mei (author), Chu, Xiao (author), Ma, Limin (author), Wang, Xiaolan (author), Zhang, Yu (author), Leeflang, M.A. (author), Zhou, J. (author)Biodegradable stents can provide scaffolding and anti-restenosis benefits in the short term and then gradually disappear over time to free the vessel, among which the Mg-based biodegradable metal stents have been prosperously developed. In the present study, a Mg-8.5Li (wt.%) alloy (RE- and Al-free) with high ductility (> 40%) was...journal article 2021
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Acquatella Bustillo, P.J. (author), Chu, Q. P. (author)This paper presents an agile and robust spacecraft attitude tracking controller using the recently reformulated incremental nonlinear dynamic inversion (INDI). INDI is a combined model- and sensor-based control approach that only requires a control effectiveness model and measurements of the state and some of its derivatives, making a reduced...journal article 2020
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Scholten, Pepijn A. (author), van Paassen, M.M. (author), Chu, Q. P. (author), Mulder, Max (author)A variable stability in-flight simulator has the capabilities to change the response of an aircraft in-flight, often without changing the physical properties of the aircraft. The ability to adjust the aircraft response characteristics and handling qualities has various purposes, such as pilot training, control system development, and handling...journal article 2020
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Sun, Sihao (author), Wang, Xuerui (author), Chu, Q. P. (author), de Visser, C.C. (author)In order to further expand the flight envelope of quadrotors under actuator failures, we design a nonlinear sensor-based fault-tolerant controller to stabilize a quadrotor with failure of two opposing rotors in the high-speed flight condition (>8 m/s). The incremental nonlinear dynamic inversion approach which excels in handling model...journal article 2020