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Xu, Jing (author), Yan, Xiaoxi (author), Figueroa, C.A. (author), Williams, Joseph Jay (author), Chakraborty, Bibhas (author)Technological advancements have made it possible to deliver mobile health interventions to individuals. A novel framework that has emerged from such advancements is the just-in-time adaptive intervention, which aims to suggest the right support to the individuals when their needs arise. The micro-randomized trial design has been proposed...journal article 2023
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Wei, Ziyi (author), Huang, Kai (author), Chen, Ying (author), Wang, D. (author), Yu, Yajuan (author), Xu, Ming (author), Kapelan, Z. (author)To alleviate the geographical mismatch between supply and demand of water resources, virtual water trade had attracted extensive attention. Many studies had estimated the virtual water flow and measured the virtual water inequality using Environmental Input-Output (EIO) model. However, EIO model ignores the feedback effect in the trade, which...journal article 2023
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Pan, Tanbo (author), Zheng, Yonglai (author), Zhou, Y. (author), Luo, Wenbin (author), Xu, Xubing (author), Hou, Chenyu (author), Zhou, Yujue (author)This study presents a damage pattern recognition approach for corroded steel beams strengthened by CFRP anchorage system based on acoustic emission clustering analysis. The proposed method includes four steps: acoustic emission signal acquisition, feature extraction, clustering analysis, and damage pattern recognition. Four corroded beams...journal article 2023
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Zhuang, Linzhou (author), Li, Zhiheng (author), Li, Mengran (author), Tao, Haolan (author), Mao, Xin (author), Lian, Cheng (author), Ge, Lei (author), Du, Aijun (author), Xu, Zhi (author)The highly efficient and stable electrolysis needs the rational control of the catalytically active interface during the reactions. Here we report a new operando surface restructuring pathway activated by pairing catalyst and electrolyte ions. Using SrCoO<sub>3-δ</sub>-based perovskites as model catalysts, we unveil the critical role of...journal article 2023
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van Rooijen, W.A. (author), Habibi, P. (author), Xu, K. (author), Dey, P. (author), Vlugt, T.J.H. (author), Hajibeygi, H. (author), Moultos, O. (author)Data for several key thermodynamic and transport properties needed for technologies using hydrogen (H<sub>2</sub>), such as underground H<sub>2</sub> storage and H<sub>2</sub>O electrolysis are scarce or completely missing. Force field-based Molecular Dynamics (MD) and Continuous Fractional Component Monte Carlo (CFCMC) simulations are...journal article 2023
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Kumar Ashish, Prabin (author), Sreeram, Anand (author), Xu, Xiong (author), Chandrasekar, Pavan (author), Jagadeesh, A. (author), Adwani, Dheeraj (author), Kumar Padhan, Rabindra (author)The widespread production and consumption of plastics is a pressing global issue that requires multifaceted approaches and solutions. In terms of recycling, one of the ways to repurpose waste plastics in the construction industry would be to utilize them for asphalt pavement-related applications. Although this approach can potentially provide...review 2023
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Xu, Li (author), Li, T. (author), Erkin, Z. (author)Verifiable Credential (VC) is a new standard proposed by the W3C association to facilitate the expression and verification of third-party-verified credentials on the Internet, such as passports or diplomas. However, the current VC data model lacks an explicit revocation design that guarantees the secure operations of the system, which limits its...conference paper 2023
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Babcock, E. (author), Salhi, Z. (author), Feoktystov, A. (author), Bannenberg, L.J. (author), Parnell, S.R. (author), Alba Venero, D. (author), Hutanu, V. (author), Thoma, H. (author), Xu, J. (author)The JCNS has been developing and using in-situ polarized neutron spin filters for many applications. The system used for analysis on MARIA and polarization for TOPAS were completed about 10 years ago with the MARIA system in standard operation for users and the TOPAS system employed for a long measurement on the POLI instrument. In the...journal article 2023
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Wan, Pei (author), Wu, Shaopeng (author), Liu, Quantao (author), Wang, Huan (author), Gong, Xing (author), Zhao, Zenggang (author), Xu, S. (author), Jiang, Jian (author), Fan, Lulu (author), Tu, Liangliang (author)Self-healing is a biological phenomenon in which living organism responds to the suffered damage in a complex way. Inspired by the self-healing phenomenon in nature, various biomimetic healing methods rooted in intrinsic or extrinsic healing mechanisms have been explored. Research on novel self-healing asphalt materials with intelligent...review 2023
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Liu, C. (author), Xu, Y. (author), van Kampen, E. (author), de Croon, G.C.H.E. (author)In this paper, we propose an obstacle avoidance solution for a 34-gram quadcopter equipped with a monocular camera. The perception of obstacles is tackled by a lightweight convolutional neural network predicting a dense depth map from a captured grey-scale image. The depth network performs self-supervised learning and thus requires no ground...journal article 2023
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Xu, J. (author), Abad, Gorka (author), Picek, S. (author)Backdoor attacks have been demonstrated as a security threat for machine learning models. Traditional backdoor attacks intend to inject backdoor functionality into the model such that the backdoored model will perform abnormally on inputs with predefined backdoor triggers and still retain state-of-the-art performance on the clean inputs. While...conference paper 2023
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Xu, J. (author), Koffas, S. (author), Ersoy, Oǧuzhan (author), Picek, S. (author)Graph Neural Networks (GNNs) have achieved promising performance in various real-world applications. Building a powerful GNN model is not a trivial task, as it requires a large amount of training data, powerful computing resources, and human expertise. Moreover, with the development of adversarial attacks, e.g., model stealing attacks, GNNs...conference paper 2023
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Ampudia Hernandez, Ricardo (author), Xu, M. (author), Huang, Yanqiu (author), Zuniga, Marco (author)In this paper, we propose a new approach where drones attain accurate localization by fusing information from artificial lighting and their embedded inertial and barometer sensors. Our system is able to provide accurate drone localization without the use of radios, GPS or cameras. We evaluate our framework, dubbed Firefly, with a testbed...conference paper 2023
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Xu, Ran (author), Wang, F. (author), Kooij, Robert (author)In this paper we investigate the controller placement problem on networks using controller reachability as the network performance metric. This metric is defined as the probability that each node can reach at least one controller, given that each link is operational with a fixed probability. By exploring placements for more than 100 real-world...conference paper 2023
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Yang, Yueming (author), Wang, Xurong (author), Hooman, K. (author), Han, Kuihua (author), Xu, Jinliang (author), He, Suoying (author), Qi, Jianhui (author)Recently, the supercritical carbon dioxide (SCO<sub>2</sub>) power cycle has become a hotspot in the field of energy-efficient utilization. The utilization of additives in the power cycle has been proven to be an effective way to improve the SCO<sub>2</sub> power cycle efficiency. As one of the core components of the system, the influence of...journal article 2023
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Sengupta, Sampad (author), Yuan, Xun (author), Maga, L.M. (author), Pirola, S. (author), Nienaber, Christoph A. (author), Xu, Xiao Yun (author)Introduction: Thoracic endovascular aortic repair (TEVAR) of the arch is challenging given its complex geometry and the involvement of supra-aortic arteries. Different branched endografts have been designed for use in this region, but their haemodynamic performance and the risk for post-intervention complications are not yet clear. This study...journal article 2023
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Manzaneque Garcia, T. (author), Ghatkesar, M.K. (author), Alijani, F. (author), Xu, M. (author), Norte, R.A. (author), Steeneken, P.G. (author)Resonant sensors hold great promise in measuring small masses, to enable future mass spectrometers, and small forces in applications like atomic and magnetic force microscopy. During the last decades, scaling down the size of resonators has led to huge enhancements in sensing resolution, but has also raised the question of what the ultimate...journal article 2023
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Ji, W. (author), Chang, J. (author), Xu, He Xiu (author), Gao, J.R. (author), Groeblacher, S. (author), Urbach, Paul (author), Adam, A.J.L. (author)As a two-dimensional planar material with low depth profile, a metasurface can generate non-classical phase distributions for the transmitted and reflected electromagnetic waves at its interface. Thus, it offers more flexibility to control the wave front. A traditional metasurface design process mainly adopts the forward prediction algorithm,...review 2023
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Cruz, María Alejandra (author), Xu, Jiaqi (author), Foppen, J.W.A. (author), Pérez, Sandra (author), Vázquez-Suñé, Enric (author), Teixidó, Marc (author)Green infrastructure drainage systems are innovative treatment units that capture and treat stormwater. Unfortunately, highly polar contaminants remain challenging to remove in conventional biofilters. To overcome treatment limitations, we assessed the transport and removal of stormwater vehicle-related organic contaminants with persistent,...journal article 2023
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Lin, P. (author), Liu, X. (author), Ren, S. (author), Li, Yi (author), Xu, Jian (author), Li, Mingliang (author)High-Content SBS Polymer Modified Asphalt Mixtures (HCPMA) combined with fibers have gained popularity in porous pavement construction due to their superior performance. Although the aging behavior of HCPMA has been extensively studied, the impact of fibers on performance and aging susceptibility remains unclear. This research investigates the...journal article 2023