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Wang, Q. (author), Zhao, C. (author), Yao, Zhenpeng (author), Wang, Jianlin (author), Wu, Fangting (author), Kumar, Sai Govind Hari (author), Ganapathy, S. (author), Eustace, S.J. (author), Wagemaker, M. (author)Developing liquid electrolytes with higher kinetics and enhanced interphase stability is one of the key challenges for lithium batteries. However, the poor solubility of lithium salts in solvents sets constraints that compromises the electrolyte properties. Here, it is shown that introducing multiple salts to form a high-entropy solution,...journal article 2023
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Wang, Q. (author), Zhao, C. (author), Wang, Jianlin (author), Yao, Zhenpeng (author), Wang, Shuwei (author), Kumar, Sai Govind Hari (author), Ganapathy, S. (author), Eustace, S.J. (author), Wagemaker, M. (author)High-entropy alloys/compounds have large configurational entropy by introducing multiple components, showing improved functional properties that exceed those of conventional materials. However, how increasing entropy impacts the thermodynamic/kinetic properties in liquids that are ambiguous. Here we show this strategy in liquid electrolytes...journal article 2023
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Zhou, Longyu (author), Leng, Supeng (author), Wang, Q. (author), Liu, Qiang (author)Various interconnected Internet of Things (IoT) devices have emerged, led by the intelligence of the IoT, to realize exceptional interaction with the physical world. In this context, UAV swarm-enabled Multiple Targets Tracking (UAV-MTT), which can sense and track mobile targets for many applications such as hit-and-run, is an appealing topic....journal article 2023
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Ye, Hanting (author), Xiong, Jie (author), Wang, Q. (author)While radio communication still dominates in 5G, light and radios are expected to complement each other in the coming 6G networks. Visible Light Communication (VLC) is therefore attracting a tremendous amount of attention from both academia and industry. Recent studies showed that the front camera of pervasive smartphones is an ideal...conference paper 2023
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Guzman, Borja Genoves (author), Mir, Muhammad Sarmad (author), Fonseca, Dayrene Frometa (author), Galisteo, Ander (author), Wang, Q. (author), Giustiniano, Domenico (author)Visible Light Communication (VLC) has emerged in the last few years as a promising technology not only for high-speed communication but also for serving a new generation of Internet of Things (IoT) devices that may leverage the pervasive lighting infrastructures. Integrating VLC in lighting environments for IoT requires the design of...journal article 2023
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Mir, Muhammad Sarmad (author), Cui, Minhao (author), Guzman, Borja Genoves (author), Wang, Q. (author), Xiong, Jie (author), Giustiniano, Domenico (author)Radio-Frequency (RF) backscatter has emerged as a low-power communication technique. Backscatter systems either rely on active signal generators (spectrum efficient, but dedicated infrastructure) or existing ambient wireless transmissions (existing infrastructure, but spectrum inefficient). In this paper, we aim to make RF backscatter...conference paper 2023
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Hersyandika, Rizqi (author), Rossanese, Marco (author), Lutu, Andra (author), Yang, Miao (author), Wang, Q. (author), Pollin, Sofie (author)This paper studies a promising use case of a private 5G network for the sports industry: wearable bodycams and sensors in a football match. This use case requires a reliable and dedicated massive MIMO network to provide uniform coverage with a high capacity in the whole pitch area. The coverage of co-located and distributed (cell-free) massive...conference paper 2023
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Liu, Bin (author), Wang, Q. (author), Pollin, Sofie (author)This paper presents a novel transparent amplifying intelligent surface (TAIS) architecture for uplink enhancement in indoor-to-outdoor mmWave communications. The TAIS is an amplifier-based transmissive intelligent surface that can refract and amplify the incident signal, instead of only refracting it with adjustable phase shift by most passive...conference paper 2023
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Zhu, R. (author), Yang, M. (author), Yang, J. (author), Wang, Q. (author)Federated Learning (FL) is an important privacy-preserving learning paradigm that is expected to play an essential role in the future Intelligent Internet of Things (IoT). However, model training in FL is vulnerable to noise and the statistical heterogeneity of local data across IoT clients. In this paper, we propose FedNaWi, a “Go Narrow, Then...conference paper 2023
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Wang, Q. (author)To eliminate organic micropollutants (OMPs) from (surface) water, activated carbon adsorption is a cost-effective technology to remove a broad range of OMPs without producing any byproducts. However, co-existing dissolved organic matter (DOM), at much higher concentrations (mg C/L) than OMPs (ng/L-μg/L), inducing adsorption competition, can...doctoral thesis 2022
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Goedemondt, K.S. (author), Yang, J. (author), Wang, Q. (author)Touchscreens and buttons had became a medium for virus transmission during the COVID-19 pandemic. We have seen in our daily life that people use tissues and keys to press buttons inside elevators, on public screens, etc. In the post- COVID world, touch-free interaction with public touchscreens and buttons may become more popular. Motivated by...conference paper 2022
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Wang, Q. (author), Zhao, C. (author), Wang, Shuwei (author), Wang, Jianlin (author), Liu, M. (author), Ganapathy, S. (author), Bai, Xuedong (author), Li, Baohua (author), Wagemaker, M. (author)Improving the reversibility of lithium metal batteries is one of the challenges in current battery research. This requires better fundamental understanding of the evolution of the lithium deposition morphology, which is very complex due to the various parameters involved in different systems. Here, we clarify the fundamental origins of...journal article 2022
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Wang, Weizheng (author), Vette, Marek (author), Wang, Q. (author), Yang, J. (author), Zuniga, Marco (author)To protect sensitive information on smartphones, state-of-the-art (SoA) studies exploit the built-in camera to capture PPG signals from fingertips as a hard-to-forge biometric. However, those studies do not provide a comprehensive analysis to optimize the camera parameters and finger pressure, leading to distorted and unstable PPG signals that...conference paper 2022
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Wang, Q. (author), Khosropanah, P. (author), Van Der Kuur, J. (author), de Lange, G. (author), Audley, M. D. (author), Aminaei, A. (author), Ilyas, S. (author), van der Tak, F.M. (author), Gao, J.R. (author)We demonstrate multiplexed readout of 43 transition edge sensor (TES) bolometers operating at 90 mK using a frequency division multiplexing (FDM) readout chain with bias frequencies ranging from 1 to 3.5 MHz and a typical frequency spacing of 32 kHz. We improve the previously reported performance of our FDM system by two important steps....journal article 2022
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Wang, Q. (author), Zietzschmann, F.E. (author), Hofman-Caris, Roberta (author), Jiang, N. (author), Schuster, Jonas (author), Wang, Zheng (author), Yu, Jianwei (author), Yang, Min (author), Rietveld, L.C. (author)It was widely acknowledged that dissolved organic matter (DOM) in natural water has ubiquitous competitiveness against organic micropollutants (OMPs) during adsorption onto activated carbon. However, some (model) low molecular weight organics have been reported to adsorb onto activated carbon, but were not competitive against co-adsorbates....journal article 2022
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Wang, Weizheng (author), Wang, Q. (author), Zuniga, Marco (author)Cardiac patterns are being used to obtain hard-to-forge biometric signatures and have led to high accuracy in state-of-the-art (SoA) identification applications. However, this performance is obtained under controlled scenarios where cardiac signals maintain a relatively uniform pattern, facilitating the identification process. In this work,...journal article 2022
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Huang, Z. (author), Wang, Q (author)In this paper, the influence of sodium hydroxide and water glass of various modulus, as activators, on the compressive strength, microstructure and hydration products of two alkali-activated phosphorous slag (AAPS) with different chemical composition were studied. Water glass activation shows relatively higher later compressive strength when the...conference paper 2021
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Liu, Hao (author), Ye, H. (author), Yang, J. (author), Wang, Q. (author)Motivated by the trend of realizing full screens on devices such as smartphones, in this work we propose through-screen sensing with visible light for the application of fingertip air-writing. The system can recognize handwritten digits with under-screen photodiodes as the receiver. The key idea is to recognize the weak light reflected by the...conference paper 2021
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Beysens, Jona (author), Wang, Q. (author), Van Den Abeele, Maxim (author), Pollin, Sofie (author)In visible light communication (VLC), the quality of communication is primarily dominated by line-of-sight links. To ensure an appropriate link quality anywhere, beamsteering has been proposed where transmitters (TXs) dynamically steer their beams to create beamspots on the users. However, these highly dynamic TXs face the beam tracking...conference paper 2021
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op het Veld, R.L.M. (author), Xu, D. (author), Schaller, V. (author), Wang, Q. (author), de Moor, M.W.A. (author), Hesselmann, Bart (author), Vermeulen, K.J. (author), Bommer, J.D.S. (author), Kouwenhoven, Leo P. (author), Zhang, H. (author)The Data availability statement of this article has been modified to add the accession link to the raw data. The old Data availability statement read “Materials and data that support the findings of this research are available within the paper. All data are available from the corresponding author upon request”. This has been replaced by ...journal article 2021