Searched for: author:"Wang, X."
(1 - 20 of 64)

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Yang, Jun (author), Thomas, Arun Geo (author), Singh, Satish (author), Baldi, S. (author), Wang, X. (author)
Unmanned Aerial Vehicles (UAVs) have multi-domain applications, fixed-wing UAVs being a widely used class. Despite the ongoing research on the topics of guidance and formation control of fixed-wing UAVs, little progress is known on implementation of semi-physical validation platforms (software-in-the-loop or hardware-in-the-loop) for such...
journal article 2020
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Wang, X. (author), Gard, W.F. (author), Borska, Helena (author), Ursem, W.N.J. (author), van de Kuilen, J.W.G. (author)
The integration of buildings into vegetation has become a necessity in many metropolitan areas of the world today. It expands the potential of vertical and horizontal, exterior and interior, exposed and enclosed spaces in a building that can be used to accommodate plants. Green infrastructures have benefits both on urban and building scales....
journal article 2020
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Wang, X. (author), Benedictus, R. (author), Groves, R.M. (author)
This study forms the first part of research into enhancing the forward and back scattering of light in an optical fibre using nanoparticles (NPs). This approach has the potential to enhance the sensitivity of optical fibre sensing by increasing the signal-to-noise ratio. The work described in this paper is focused on understanding the...
conference paper 2020
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Wang, X. (author), Wu, Chaozhong (author), Xue, J. (author), Chen, Z. (author)
To date, automatic driving technology has become a hotspot in academia. It is necessary to provide a personalization of automatic driving decision for each passenger. The purpose of this paper is to propose a self-learning method for personalized driving decisions. First, collect and analyze driving data from different drivers to set learning...
journal article 2020
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Wang, Pinqiang (author), Zhang, Weimin (author), Wang, Huizan (author), Dai, Haijin (author), Wang, X. (author)
Previous studies are mainly limited to temperature and salinity (T/S) profiling data assimilation, while data assimilation based on Argo float trajectory information has received less research focus. In this study, a new method was proposed to assimilate Argo trajectory data: The middepth (indicates the parking depth of Argo floats in this...
journal article 2020
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Fari, Stefano (author), Wang, X. (author), Roy, Spandan (author), Baldi, S. (author)
The actual performance of model-based path-following methods for unmanned aerial vehicles (UAVs) shows considerable dependence on the wind knowledge and on the fidelity of the dynamic model used for design. This study analyzes and demonstrates the performance of an adaptive vector field (VF) control law which can compensate for the lack of...
journal article 2020
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Liu, X. (author), Wang, X. (author), Kapteijn, F. (author)
The steep stepwise uptake of water vapor and easy release at low relative pressures and moderate temperatures together with high working capacities make metal-organic frameworks (MOFs) attractive, promising materials for energy efficient applications in adsorption devices for humidity control (evaporation and condensation processes) and heat...
review 2020
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Liu, Dong (author), Hasanov, Urfan (author), Ye, Changqing (author), Gou, Xiaofan (author), Wang, X. (author)
Compared with partially superconducting generators, fully superconducting generators (F-SCGs) can further increase the torque density in large direct-drive wind turbine applications. Design trends of F-SCGs intend to increase the electrical loading by applying superconducting wires and boost the current density in the armature winding to meet...
conference paper 2020
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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
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Kim, K.H. (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
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Wang, X. (author), van Kampen, E. (author), Chu, Q. P. (author), Lu, Peng (author)
As a sensor-based control method, incremental nonlinear dynamic inversion (INDI) has been applied to various aerospace systems and has shown desirable robust performance against aerodynamic model uncertainties. However, its previous derivation based on the time scale separation principle has some limitations. There is also a need for stability...
journal article 2019
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Wang, X. (author), Sun, S. (author), van Kampen, E. (author), Chu, Q. P. (author)
This paper proposes an Incremental Sliding Mode Control driven by Sliding Mode Disturbance Observers (INDI-SMC/SMDO), with application to a quadrotor fault tolerant control problem. By designing the SMC/SMDO based on the control structure of the sensor-based Incremental Nonlinear Dynamic Inversion (INDI), instead of the model-based Nonlinear...
journal article 2019
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Wang, X. (author), Shan, M. (author), Liu, X. (author), Wang, M. (author), Doherty, Cara M. (author), Osadchii, D. (author), Kapteijn, F. (author)
Increasing helium use in research and production processes necessitates separation techniques to secure sufficient supply of this noble gas. Energy-efficient helium production from natural gas is still a big challenge. Membrane gas separation technology could play an important role. Herein, a novel poly(p-phenylene benzobisimidazole) (PBDI)...
journal article 2019
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Yang, Jun (author), Wang, X. (author), Baldi, S. (author), Singh, Satish (author), Fari, S. (author)
This paper discusses the design and software-in-the-loop implementation of adaptive formation controllers for fixed-wing unmanned aerial vehicles (UAVs) with parametric uncertainty in their structure, namely uncertain mass and inertia. In fact, when aiming at autonomous flight, such parameters cannot assumed to be known as they might vary...
journal article 2019
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Wang, X. (author), Gard, W.F. (author), van de Kuilen, J.W.G. (author)
Living architecture is thriving. The integration of buildings with vegetation has become a necessity in many metropolitan areas of the world today, including Singapore, New York City, Shanghai and Milan, to name a few. It expands the potential of vertical and horizontal, exterior and interior, exposed and enclosed spaces in a building that can...
conference paper 2019
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Shan, M. (author), Liu, X. (author), Wang, X. (author), Liu, Z. (author), Iziyi, H. (author), Ganapathy, S. (author), Gascon, Jorge (author), Kapteijn, F. (author)
Membranes with high selectivity and permeance are needed to reduce energy consumption in hydrogen purification and pre-combustion CO <sub>2</sub> capture. Polybenzimidazole (PBI) is one of the leading membrane materials for this separation. In this study, we present superior novel supported PBI (poly(p-phenylene benzobisimidazole), PBDI)...
journal article 2019
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Wang, X. (author), Kooij, R.E. (author), Moreno, Yamir (author), Van Mieghem, P.F.A. (author)
Networks are often made up of several layers that exhibit diverse degrees of interdependencies. An interdependent network consists of a set of graphs G that are interconnected through a weighted interconnection matrix B, where the weight of each intergraph link is a non-negative real number p. Various dynamical processes, such as...
journal article 2019
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Wang, X. (author), van Kampen, E. (author), Chu, Q. P. (author)
This paper proposes a novel control framework that combines the recently reformulated incremental nonlinear dynamic inversion with (higher-order) sliding-mode controllers/observers, for generic multi-input/multi-output nonlinear systems, named incremental sliding-mode control. As compared to the widely used approach that designs (higher-order...
journal article 2019
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Liu, X. (author), Wang, X. (author), Bavykina, A.V. (author), Chu, L. (author), Shan, M. (author), Sabetghadam, Anahid (author), Miro, H. (author), Kapteijn, F. (author), Gascon, Jorge (author)
The preparation and the performance of mixed matrix membranes based on metal-organic polyhedra (MOPs) are reported. MOP fillers can be dispersed as discrete molecular units (average 9 nm in diameter) when low filler cargos are used. In spite of the low doping amount (1.6 wt %), a large performance enhancement in permeability, aging resistance...
journal article 2018
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Zhao, Jie (author), Guo, Leicheng (author), He, Qing (author), Wang, Zhengbing (author), van Maren, D.S. (author), Wang, X. (author)
Examination of large scale, alluvial estuarine morphology and associated time evolution is of particular importance regarding management of channel navigability, ecosystem, etc. In this work, we analyze morphological evolution and changes of the channel-shoal system in the Changjiang Estuary, a river- and tide-controlled coastal plain estuary,...
journal article 2018
Searched for: author:"Wang, X."
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