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Zhou, Y.L. (author), Ma, S.Y. (author), Liu, R.S. (author), Luehr, H. (author), Doornbos, E. (author)The controls of merging electrical field, Em, and IMF (interplanetary magnetic field) magnitude, B, on the storm-time changes in upper thermospheric mass density are statistically investigated using GRACE accelerometer observations and the OMNI data of solar wind and IMF for 35 great storms during 2002–2006. It reveals the following: (1) The...journal article 2013
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- Tao, Y. (author), Gao, D.W. (author), Wang, H.Y. (author), Zhang, X. (author), Ghasimi, S.M.D. (author), Ozgun, H. (author), Ersahin, M.E. (author), Zhou, Z.B. (author), Liu, G. (author), Temudo, M.F. (author), Kloek, J. (author), Spanjers, H. (author), De Kreuk, M.K. (author), Van Lier, J.B. (author) conference paper 2014
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Liu, Y. (author), Visser, P. (author), Zhou, X. (author), Lyon, S.B. (author), Hashimoto, T. (author), Curioni, M. (author), Gholinia, A. (author), Thompson, G.E. (author), Smyth, G. (author), Gibbon, S.R. (author), Graham, D. (author), Mol, J.M.C. (author), Terryn, H.A. (author)An investigation into corrosion inhibition properties of a primer coating containing lithium carbonate as corrosion inhibitive pigment for AA2024 aluminum alloy was conducted. It was found that, during neutral salt spray exposure, a protective film of about 0.2 to 1.5 ?m thickness formed within the area where an artificial defect was introduced...journal article 2015
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Li, Chuanrong (author), Zhou, Mei (author), Liu, Menghua (author), Ma, Lian (author), Wang, J. (author)Concealed cars extraction from point clouds data acquired by airborne laser scanning has gained its popularity in recent years. However, due to the occlusion effect, the number of laser points for concealed cars under trees is not enough. Thus, the concealed cars extraction is difficult and unreliable. In this paper, 3D point cloud...journal article 2016
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Zhou, Yan (author), Zlatanova, S. (author), Wang, Zhe (author), Zhang, Yeting (author), Liu, L. (author)Video surveillance systems are increasingly used for a variety of 3D indoor applications. We can analyse human behaviour, discover and avoid crowded areas, monitor human traffic and so forth. In this paper we concentrate on use of surveillance cameras to track and reconstruct the path a person has followed. For the purpose we integrated video...journal article 2016
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Zhou, C. (author), Liu, X. (author), Apostolidis, P. (author)Low Temperature Asphalt (LTA) technologies are utilized in asphalt pavement industry to lower energy demands and greenhouse gas emission during mixing and construction processes. Although these technologies are currently available and hope to demonstrate similar performance with Hot Mix Asphalt (HMA) mixes, LTA shows more sensitive than HMA to...conference paper 2017
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Liu, Yang (author), Wu, Yuanhao (author), Bian, Dong (author), Gao, Shuang (author), Leeflang, M.A. (author), Guo, Hui (author), Zheng, Yufeng (author), Zhou, J. (author)Novel Mg-(3.5, 6.5wt%)Li-(0.5, 2, 4wt%)Zn ternary alloys were developed as new kinds of biodegradable metallic materials with potential for stent application. Their mechanical properties, degradation behavior, cytocompatibility and hemocompatibility were studied. These potential biomaterials showed higher ultimate tensile strength than...journal article 2017
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Zhou, Zhengzheng (author), Smith, James A. (author), Yang, Long (author), Baeck, Mary Lynn (author), Chaney, Molly (author), ten Veldhuis, Marie-claire (author), Deng, Huiping (author), Liu, Shuguang (author)We examine urban flood response through data-driven analyses for a diverse sample of “small” watersheds (basin scale ranging from 7.0 to 111.1 km<sup>2</sup>) in the Charlotte Metropolitan region. These watersheds have experienced extensive urbanization and suburban development since the 1960s. The objective of this study is to develop a...journal article 2017
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Zhan, X. (author), Liu, Chuang (author), Zhou, Ge (author), Zhang, Zi-Ke (author), Sun, Gui-Quan (author), Zhu, Jonathan J. H. (author), Jin, Zhen (author)The interaction between disease and disease information on complex networks has facilitated an interdisciplinary research area. When a disease begins to spread in the population, the corresponding information would also be transmitted among individuals, which in turn influence the spreading pattern of the disease. In this paper, firstly, we...journal article 2018
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Zhou, Rongfu (author), Lin, Litian (author), Liu, Chunmeng (author), Dorenbos, P. (author), Tao, Ye (author), Huang, Yan (author), Liang, Hongbin (author)A series of Ln-doped KSrPO<sub>4</sub> (Ln = Ce<sup>3+</sup>, Eu<sup>3+</sup>, Eu<sup>2+</sup>, Pr<sup>3+</sup>) phosphors are prepared through a high-temperature solid-state method. The KSrPO<sub>4</sub> compound is confirmed to possess a β-K<sub>2</sub>SO<sub>4</sub> structure with the Pnma group by Rietveld refinement, and the temperature...journal article 2018
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Zhang, Xiang Yu (author), Fang, Gang (author), Xing, Lei Lei (author), Liu, Wei (author), Zhou, J. (author)Functionally graded scaffold (FGS) is designed to mimic the morphology, mechanical and biological properties of natural bone closely. Porosity variation strategy between different regions in FGS plays a crucial role in influencing its mechanical and biological performance. A combination of modeling tool and scripting language can effectively...journal article 2018
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Zhou, C. (author), Liu, X. (author), Apostolidis, P. (author), Scarpas, Athanasios (author), He, Liang (author)Low temperature asphalt (LTA) technologies, such as warm-mixed asphalt mixes, are utilized in the paving industry to lower energy demands and greenhouse gas emissions during asphalt mixing and pavement construction. However, the asphalt mixes developed that incorporate LTA additives are more sensitive than hot-mixed asphalts to temperature...journal article 2018
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ten Veldhuis, Marie-claire (author), Zhou, Zhengzheng (author), Yang, Long (author), Liu, Shuguang (author), Smith, James (author)The impact of spatial and temporal variability of rainfall on hydrological response remains poorly understood, in particular in urban catchments due to their strong variability in land use, a high degree of imperviousness and the presence of stormwater infrastructure. In this study, we analyze the effect of storm scale, position and movement...journal article 2018
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Ding, Ming (author), Zhou, Zhihao (author), Liu, Yao-Hong (author), Traferro, Stefano (author), Bachmann, Christian (author), Philips, Kathleen (author), Sebastiano, F. (author)A 40-nm CMOS wakeup timer employing a bang-bang digital-intensive frequency-locked loop for Internet-of-Things applications is presented. A self-biased ΣΔ digitally controlled oscillator (DCO) is locked to an RC time constant via a single-bit chopped comparator and a digital loop filter. Such highly digitized architecture fully exploits the...journal article 2018
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Chen, Yong (author), Lv, Maolong (author), Baldi, S. (author), Liu, Zongcheng (author), Zhang, Wenqian (author), Zhou, Yang (author)This work focuses on adaptive neural dynamic surface control (DSC) for an extended class of nonlinear MIMO strict-feedback systems whose control gain functions are continuous and possibly unbounded. The method is based on introducing a compact set which is eventually proved to be an invariant set: thanks to this set, the restrictive...conference paper 2019
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Liu, Q. (author), Zhou, Xiaoyu (author), Van Mieghem, P.F.A. (author)In previous modelling efforts to understand the spreading process on networks, each node can infect its neighbors and cure spontaneously, and the curing is traditionally assumed to occur uniformly over time. This traditional curing is not optimal in terms of the trade-off between the effectiveness and cost. A pulse immunization/curing strategy...journal article 2019
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Liu, Chuang (author), Zhou, Nan (author), Zhan, X. (author), Sun, Gui-Quan (author), Zhang, Zi-Ke (author)There is currently growing interest in modeling the information diffusion on social networks across multi-disciplines, including the prediction of the news popularity, the detection of the rumors and the influence of the epidemiological studies. Following the framework of the epidemic spreading, the information spreading models assume that...journal article 2020
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Ding, Ming (author), Zhou, Zhihao (author), Traferro, Stefano (author), Liu, Yao Hong (author), Bachmann, Christian (author), Sebastiano, F. (author)This paper presents a wakeup timer in 40-nm CMOS for Internet-of-Things (IoT) applications based on a bang-bang Digital-intensive Frequency-Locked Loop (DFLL). A self-biased Σ Δ Digitally Controlled Oscillator (DCO) is locked to an RC time constant via a feedback loop consisting of a single-bit chopped comparator and a digital loop filter,...journal article 2020
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Cheng, Zhu (author), Liu, M. (author), Ganapathy, S. (author), Li, Z. (author), Zhang, Xiaoyu (author), He, Ping (author), Zhou, Haoshen (author), Wagemaker, M. (author), Li, Chau (author)The influence of space-charge layers on the ionic charge transport over cathode-solid electrolyte interfaces in all-solid-state batteries remains unclear because of the difficulty to unravel it from other contributions to the ion transport over the interfaces. Here, we reveal the effect of the space-charge layers by systematically tuning the...journal article 2020
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Zhou, J. (author), Jia, Li (author), Menenti, M. (author), Liu, Xuan (author)Terrestrial remote sensing data products retrieved from radiometric measurements in the optical and thermal infrared spectrum such as vegetation spectral indices can be heavily contaminated by atmospheric conditions, including cloud and aerosol layers. This contamination results in gaps or noisy observations. The harmonic analysis of time series...journal article 2021