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Zhou, H. (author), Infante Ferreira, C.A. (author)Hydrate slurry has been reported to be a suitable secondary fluid for refrigeration and air-conditioning systems. The latent heat of CO2 hydrate is 387 kJ/kg under phase equilibrium condition of 7 °C and 30 bar. The utilization of CO2 hydrate slurry in air-conditioning systems is promising in improving the energy efficiency and shifting energy...conference paper 2016
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Trascinelli, L. (author), Bowen, Luke (author), Piccolo, A. (author), Zamponi, R. (author), Ragni, D. (author), Avallone, F. (author), Zhou, Beckett Y. (author), Zang, Bin (author)The present study assesses the ability to numerically predict turbulence-interaction noise of a NACA0012 airfoil with grid-generated turbulence by utilizing the Lattice Boltzmann solver PowerFLOW. Both the near-field flow characteristics and far field noise are bench-marked against an existing experimental study. The grid was chosen to match...conference paper 2023
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Vroon, Jered (author), Zhou, Y. (author), Rusak, Z. (author)When mobile urban robots will share the sidewalk with people, the resulting interactions can cause unexpected undesirable outcomes to emerge – from people running away scared to people deliberately teasing and harassing such systems. How can we design such AI systems to aptly handle the unexpected? Directly anticipating and/or detecting these...conference paper 2020
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Hong, C. (author), Ghiassi, S. (author), Zhou, Yichi (author), Birke, Robert (author), Chen, Lydia Y. (author)Noisy labeled data is more a norm than a rarity for crowd sourced contents. It is effective to distill noise and infer correct labels through aggregating results from crowd workers. To ensure the time relevance and overcome slow responses of workers, online label aggregation is increasingly requested, calling for solutions that can...conference paper 2021
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Zhou, J. (author), Liu, Xuan (author), Xiong, Xuqian (author), Jia, Li (author), Lu, Jing (author), Cui, Yilin (author)Satellite-based Earth Observation systems archived a variety of vegetation products during the last 50 years, which can reveal regional to global ecosystem dynamics across diverse spatiotemporal scales. The anomaly metrics such as Vegetation Condition Index (VCI) defined by comparing the current vegetation growth condition to historical...conference paper 2022
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Zhou, J. (author), Kim, Raphael (author), Doubrovski, E.L. (author), Soares de Oliveira Martins, J. (author), Giaccardi, Elisa (author), Karana, E. (author)Microbes offer designers opportunities to endow artefacts with environmental sensing and adapting abilities, and unique expressions. However, microbe-embedded artefacts present a challenge of temporal dissonance, reflected by a “time lag” typically experienced by humans in noticing the gradual and minute shifts in microbial metabolism. This...conference paper 2023
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Zhou, Xiaochuan (author), Ganeshpure, D.A. (author), Soeiro, Thiago B. (author), Ghaffarian Niasar, M. (author), Wu, Y. (author), Vaessen, P.T.M. (author)In order to damp the resonance in the MMC-based Arbitrary Wave shape Generator (AWG) used for high voltage testing, an active damping control methodology is proposed in this paper instead of the passive damping with an arm resistor. It is vital to ensure the system’s stability when such an active damping closed loop control is implemented....conference paper 2023
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Zhou, Y. (author), Ibrahim, Aya (author), Muttillo, M. (author), Manganiello, P. (author), Ziar, H. (author), Isabella, O. (author)This paper presents the fundamental study on the relationship between LED light sources and the performance of solar cell as receivers in visible light communication (VLC) links. Here, different colors of LEDs are modulated with a sinusoidal signal, and the bandwidth of the VLC system based on various c-Si PV architectures is characterized at...conference paper 2023
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Jing, Guoqing (author), Aela, Peyman (author), Zhou, Qiang (author), Jia, W. (author)The use of recycled materials is a new tendency in the field of railway engineering. Steel slag aggregates (SSA) are one of the recycled materials derived from the steel industry. The application of SSA in ballasted railway tracks requires mechanical examination. In the present paper, the shear behavior of the ballast layer constructed by SSA...conference paper 2022
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Zhou, Nan (author), Zhan, X. (author), Ma, Qiang (author), Lin, Song (author), Zhang, Jun (author), Zhang, Zi-Ke (author)The rapid development of World Wide Web accelerates information spreading in various ways. Thanks to the emergence of multiple social platforms, some events which are not much attractive in the past can become social hot spots nowadays. In this paper, we study the information diffusion process of “IP MAN3 box office fraud”, which is widely...conference paper 2018
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Zhou, Y. (author), van Kampen, E. (author), Chu, Q. P. (author)Flapping-wing MAVs represent an attractive alternative to conventional designs with rotary wings, since they promise a much higher efficiency in forward flight. However, further insight into the flapping-wing aerodynamics is still needed to get closer to the flight performance observed in natural fliers. Here we present the first step necessary...conference paper 2016
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Hu, Liang (author), Tang, Y. (author), Zhou, Z. (author), Pan, W. (author)This paper presents a deep reinforcement learning (DRL) algorithm for orientation estimation using inertial sensors combined with a magnetometer. Lyapunov’s method in control theory is employed to prove the convergence of orientation estimation errors. The estimator gains and a Lyapunov function are parametrised by deep neural networks and...conference paper 2021
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Zhou, Bingyu (author), Satyavada, Harish (author), Baldi, S. (author)In this paper, an adaptive control scheme for Unmanned Aerial Vehicles (UAVs) path following under slowly time-varying wind is developed. The proposed control strategy integrates the path following law based on the vector field method with an adaptive term counteracting the effect of wind's unknown component. In particular, it is shown that...conference paper 2017
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Decouchant, Jérémie (author), Kulahcioglu Ozkan, Burcu (author), Zhou, Yanzhuo (author)Byzantine consensus protocols aim at maintaining safety guarantees under any network synchrony model and at providing liveness in partially or fully synchronous networks. However, several Byzantine consensus protocols have been shown to violate liveness properties under certain scenarios. Existing testing methods for checking the liveness of...conference paper 2023
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Zhou, Y. (author)Robots navigating in social environments inevitably exhibit behavior perceived as inappropriate by people, which they will repeat unless they are aware of them; hindering their social acceptance. This highlights the importance of robots detecting and adapting to the perceived appropriateness of their behavior, in line with what we found in a...conference paper 2023
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Zhou, K. (author), Gorte, B.G.H. (author)In VHR(very high resolution) aerial images, shadows indicating height information are valuable for validating or detecting changes on an existing 3D city model. In the paper, we propose a novel and full automatic approach for shadow detection from VHR images. Instead of automatic thresholding, the supervised machine learning approach is...conference paper 2017
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Duarte Pinto, S.C. (author), Ortega, R (author), Ritzau, S. (author), Pasquale, D (author), Laprade, B. (author), Mrotek, S. (author), Gardell, S. (author), Zhou, Z. (author), Plomp, J. (author), van Eijck, L. (author), Bilheux, H. (author), Dhiman, I. (author)A neutron imaging detector based on neutron-sensitive microchannel plates (mcps) was constructed and tested at beamlines of thermal and cold neutrons. The mcps are made of a glass mixture containing 10B and natural Gd, which makes the bulk of the mcp an efficient neutron converter. Contrary to the neutron-sensitive scintillator screens normally...conference paper 2017
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Xu, Luyan (author), Zhou, Xuan (author), Gadiraju, Ujwal (author)Studies in searching as learning (SAL) have revealed that user knowledge gain not only manifests over a long-term learning period, but also occurs in single short-term web search sessions. Though prior works have shown that the knowledge gain of collaborators can be influenced by user demographics and searching strategies in long-term...conference paper 2020
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Chen, Hang (author), Zhou, Hengshun (author), Du, Jun (author), Lee, Chin-Hui (author), Chen, Jingdong (author), Watanabe, Shinji (author), Siniscalchi, Sabato Marco (author), Scharenborg, O.E. (author), Liu, Di-Yuan (author)In this paper we discuss the rational of the Multi-model Information based Speech Processing (MISP) Challenge, and provide a detailed description of the data recorded, the two evaluation tasks and the corresponding baselines, followed by a summary of submitted systems and evaluation results. The MISP Challenge aims at tack-ling speech processing...conference paper 2022
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Zhou, Bingyu (author), Schwarting, Wilko (author), Rus, Daniela (author), Alonso-Mora, J. (author)When driving in urban environments, an autonomous vehicle must account for the interaction with other traffic participants. It must reason about their future behavior, how its actions affect their future behavior, and potentially<br/>consider multiple motion hypothesis. In this paper we introduce a method for joint behavior estimation and...conference paper 2018