Showing papers by "Hong Kong University of Science and Technology published in 2022"
81 citations
École Polytechnique1, University of Erlangen-Nuremberg2, South China University of Technology3, University of Windsor4, University of California, Santa Barbara5, Hong Kong University of Science and Technology6, Sungkyunkwan University7, University of Washington8, York University9, Shanghai Jiao Tong University10, University of Minnesota11, Hewlett-Packard12, King Abdullah University of Science and Technology13, University of California, Berkeley14, Rovira i Virgili University15, Chinese Academy of Sciences16, University of California, San Diego17, Åbo Akademi University18, University of Chicago19, Fudan University20, Northwestern University21, Columbia University22, PARC23, École Polytechnique Fédérale de Lausanne24, University of Bari25
TL;DR: Bonnassieux et al. as mentioned in this paper presented a roadmap for the key areas of flexible and printable electronics. And they highlighted the current status and future challenges in the areas covered by the roadmap and highlighted the breadth and wide-ranging opportunities made available by flexible electronics technologies.
Abstract: Author(s): Bonnassieux, Y; Brabec, CJ; Cao, Y; Carmichael, TB; Chabinyc, ML; Cheng, KT; Cho, G; Chung, A; Cobb, CL; Distler, A; Egelhaaf, HJ; Grau, G; Guo, X; Haghiashtiani, G; Huang, TC; Hussain, MM; Iniguez, B; Lee, TM; Li, L; Ma, Y; Ma, D; McAlpine, MC; Ng, TN; Osterbacka, R; Patel, SN; Peng, J; Peng, H; Rivnay, J; Shao, L; Steingart, D; Street, RA; Subramanian, V; Torsi, L; Wu, Y | Abstract: This roadmap includes the perspectives and visions of leading researchers in the key areas of flexible and printable electronics. The covered topics are broadly organized by the device technologies (sections 1–9), fabrication techniques (sections 10–12), and design and modeling approaches (sections 13 and 14) essential to the future development of new applications leveraging flexible electronics (FE). The interdisciplinary nature of this field involves everything from fundamental scientific discoveries to engineering challenges; from design and synthesis of new materials via novel device design to modelling and digital manufacturing of integrated systems. As such, this roadmap aims to serve as a resource on the current status and future challenges in the areas covered by the roadmap and to highlight the breadth and wide-ranging opportunities made available by FE technologies.
68 citations
TL;DR: In this article, the influence of gravel content and shape distribution of limestone and basalt gravels on the shear strength of soil-rock mixture (SRM) at various stress conditions was evaluated.
57 citations
TL;DR: In this paper, the crystal phase adjustment of the sensing materials can optimize the band gap and oxygen-adsorptive capacity, which influences the gas sensing characteristics, and the results showed that the sensors based on R-TiO2 NRs displayed the higher response value (12.3) to 100ppm acetone vapor at 320°C compared to A-TiNodes (4.1) and B-NiO2NRs (2.3).
53 citations
TL;DR: In this paper , the authors investigated the gas sensing characteristics of different crystal phase structures including rutile TiO2 nanorods (R-TiO2 NRs), anatase TiO 2 nanoparticles (A-TiOPNarticles) and brookite TiOPNorod (B-TiOPSnorods) via one-step hydrothermal process.
53 citations
TL;DR: In this article, two near-infrared absorbing PSMAs, namely PY2Se-F and PY 2Se-Cl, with a selenophene-fused core and halogenated end-group are developed, combining synergistic effects of selenium and fluorine (F)/chlorine (Cl) substitutions in broadening absorption and enhancing intermolecular interactions.
49 citations
TL;DR: In this article, a hollow ZnO/ZnS/CuS composite was constructed using a hard template and based on the diverse binding ability of Cu and Zn ions to S ions, the compositions, interfaces, and defects of the sample were simultaneously regulated.
45 citations
TL;DR: In this paper , a hollow ZnO/ZnS/CuS composite was constructed using a hard template and based on the diverse binding ability of Cu and Zn ions to S ions, the compositions, interfaces, and defects of the sample were simultaneously regulated.
45 citations
TL;DR: In this paper, CoFe2O4/montmorillonite composites (CF/MO) were synthesized and used as high-effective peroxymonosulfate (PMS) catalysts for the degradation of tetracycline (TC).
44 citations
TL;DR: In this paper, a silicon-doped orange-emitting carbon dots (O-CDs) is synthesized via a one-step hydrothermal method o-phenylenediamine and ethyl orthosilicate as raw materials.
43 citations
TL;DR: This work presents an accurate measurement model of the face gear tooth surface, wherein the DTCA is implemented with a robust algorithm and the equation of meshing is simplified to reduce its nonlinearity and realize the D TCA.
TL;DR: Li et al. as discussed by the authors proposed NiCo2S4@NiV-LDH/NF composite material with a core-shell nanostructure through a simple hydrothermal method.
TL;DR: In this paper, a low-cost and effective strategy is developed to discourage the dendrite growth by in situ formation of an artificial NaF-rich protective layer on Na metal, which facilitates the formation of highly stable, NaFrich solid electrolyte interphase (SEI) capable of preventing continuous electrolyte depletion during charge/discharge cycles.
TL;DR: In this article , the green synthesis of nickel/nickel oxide nanoparticles (Nio/NiO nanoparticles) using seeds extract of Lactuca Serriola, bactericidal effect on human pathogenic bacteria and the photocatalytic activity was confirmed by X-ray diffraction.
TL;DR: Li et al. as discussed by the authors proposed NiCo2S4@NiV-LDH/NF composite material with a core-shell nanostructure through a simple hydrothermal method.
TL;DR: In this paper, the authors proposed a blockchain-based data structure for document version history integrity in AEC projects and evaluated the scalability of the proposed framework to support document version integrity.
TL;DR: In this paper , an all-inorganic narrowband emitter comprising a solution-derived SiOx Ny layer sandwiched between a reflective substrate and a self-assembly monolayer of SiO2 microspheres is reported.
Abstract: Daytime radiative cooling provides an eco-friendly solution to space cooling with zero energy consumption. Despite significant advances, most state-of-the-art radiative coolers show broadband infrared emission with low spectral selectivity, which limits their cooling temperatures, especially in hot humid regions. Here, an all-inorganic narrowband emitter comprising a solution-derived SiOx Ny layer sandwiched between a reflective substrate and a self-assembly monolayer of SiO2 microspheres is reported. It shows a high and diffusive solar reflectance (96.4%) and strong infrared-selective emittance (94.6%) with superior spectral selectivity (1.46). Remarkable subambient cooling of up to 5 °C in autumn and 2.5 °C in summer are achieved under high humidity without any solar shading or convection cover at noontime in a subtropical coastal city, Hong Kong. Owing to the all-inorganic hydrophobic structure, the emitter shows outstanding resistance to ultraviolet and water in long-term durability tests. The scalable-solution-based fabrication renders this stable high-performance emitter promising for large-scale deployment in various climates.
TL;DR: A novel condition monitoring and fault isolation system based on a covariate-adjusted preprocessing procedure to account for the various working conditions of the wind turbine, and constructs a global monitoring statistic based on all temperature variables contained in SCADA data.
Abstract: Condition monitoring of the wind turbine based on supervisory control and data acquisition (SCADA) data has attracted much attention in recent years. Nevertheless, there are some inherent challenges in SCADA data analysis, including the low sampling rate, time-varying working conditions of the wind turbine, and a lack of historical fault data. To solve these problems, this article develops a novel condition monitoring and fault isolation system. First, a covariate-adjusted preprocessing procedure is proposed to account for the various working conditions of the wind turbine. Next, we construct a global monitoring statistic based on all temperature variables contained in the SCADA data, with a view to monitoring the overall health status of the wind turbine. If an alarm is raised, we isolate the fault through a variable selection method without relying on expert knowledge or historical fault data. Simulation and real cases are provided to demonstrate the effectiveness of this system.
TL;DR: In this paper , a RuNi single atom alloy (SAA) was proposed, in which Ru single atoms are anchored onto Ni nanoparticle surface via Ru-Ni coordination accompanied with electron transfer from sub-surface Ni to Ru, and the optimal catalyst 0.4% RuNi SAA exhibits simultaneously improved activity (TOF value: 4293 h −1 ) and chemoselectivity toward selective hydrogenation of 4-nitrostyrene to 4-aminostyrene (yield: >99%), which is, to the best of the knowledge, the highest level compared with reported heterogeneous catalysts.
Abstract: Abstract The design and exploitation of high-performance catalysts have gained considerable attention in selective hydrogenation reactions, but remain a huge challenge. Herein, we report a RuNi single atom alloy (SAA) in which Ru single atoms are anchored onto Ni nanoparticle surface via Ru–Ni coordination accompanied with electron transfer from sub-surface Ni to Ru. The optimal catalyst 0.4% RuNi SAA exhibits simultaneously improved activity (TOF value: 4293 h –1 ) and chemoselectivity toward selective hydrogenation of 4-nitrostyrene to 4-aminostyrene (yield: >99%), which is, to the best of our knowledge, the highest level compared with reported heterogeneous catalysts. In situ experiments and theoretical calculations reveal that the Ru–Ni interfacial sites as intrinsic active centers facilitate the preferential cleavage of N–O bond with a decreased energy barrier by 0.28 eV. In addition, the Ru–Ni synergistic catalysis promotes the formation of intermediates (C 8 H 7 NO* and C 8 H 7 NOH*) and accelerates the rate-determining step (hydrogenation of C 8 H 7 NOH*).
TL;DR: In this article, an atomically dispersed and fully exposed Cu3 cluster stabilized on defect-rich nanodiamond-graphene hybrid support (Cu3/ND@G) with unique active adsorption sites was reported, which benefit the adaption and cleavage of O2, resulting in enhanced oxidase-like and antibacterial activity.
Abstract: Nanozyme has attracted great attention due to its diverse enzymatic catalytic activities. But there are still challenges in constructing novel nanozyme with robust catalytic activity. Here, we report an atomically dispersed and fully exposed Cu3 cluster stabilized on defect-rich nanodiamond-graphene hybrid support (Cu3/ND@G) with unique active adsorption sites, which benefit the adsorption and cleavage of O2, resulting in enhanced oxidase-like and antibacterial activity. The catalytic rate constant of Cu3/ND@G (Kcat = 1.474 × 10−1 s−1) is higher than those of previously reported copper single atom oxidase mimics (0.5 × 10−3 s−1) and even the commercial Pt/C mimics (1.01 × 10−2 s−1). DFT calculation revealed that the atomically dispersed Cu3 cluster as active center significantly improves the oxidase-like activity, attributing to the easy dissociation of O2 into reactive oxygen species (•OH). The atomically dispersed Cu3 cluster with an antibacterial rate of 100% in the NaAc buffer presents its potential application in the field of antibacterial materials.
TL;DR: In this paper, a small sample fault diagnosis method is proposed based on dual path convolution with attention mechanism (DCA) and bidirectional gated recurrent unit (BiGRU), whose performance can be effectively mined by the latest regularization training strategies.
TL;DR: In this paper , a small sample fault diagnosis method is proposed based on dual path convolution with attention mechanism (DCA) and bidirectional gated recurrent unit (BiGRU), whose performance can be effectively mined by the latest regularization training strategies.
TL;DR: Zhang et al. as mentioned in this paper proposed a novel edge-based reversible re-calibration network (ERRNet), which is characterized by two innovative designs, namely Selective Edge Aggregation (SEA) and Reversible Re-Calibration Unit (RRU), which aim to model the visual perception behavior and achieve effective edge prior and cross-comparison between potential camouflaged regions and background.
01 Jan 2022
TL;DR: In this article , the strategies and challenges of the state-of-the-art non-precious group metal-based catalysts toward water electrolysis are discussed. But the authors focus on the non-reactive catalysts.
Abstract: This review outlines the strategies and challenges of the state-of-the-art non-precious group metal-based catalysts toward water electrolysis.
TL;DR: In this article, the authors proposed a 3D heat transfer model that considers contact heat transfer and thermal cracking in continuous-discontinuous media, and the model is combined with the 3D Finite Discrete Element (FDEM) for coupled thermo-mechanical calculation, which includes the temperature distribution of the system, the thermal stress caused by the temperature, and finally, the newly generated broken joint element is updated for heat transfer calculation at the next time.
01 Mar 2022
TL;DR: In this article , a novel 2S4@CoS2/NF composite material with core-shell structure was synthesized by ZIF-67 derivatives and the solvothermal method, which overcomes the shortcomings of MOF as an electrode material and provides a large contact area for the active materials and the electrolyte solution.
Abstract: Designing novel multiple composite material with core-shell structure has been demonstrated as an effective method to improve the electrochemical properties of energy storage due to the synergistic effects and structural advantages between the ingredients. Herein, a novel [email protected]2S4@CoS2/NF composite material with core-shell structure was synthesized by ZIF-67 derivatives and the solvothermal method. The composite material overcomes the shortcomings of MOF as an electrode material and provides a large contact area for the active materials and the electrolyte solution. The [email protected]2S4@CoS2/NF electrode exhibits an excellent specific capacity is 1101.2 C g − 1 (2447.1 F g − 1) at a current density of 1 A g − 1 and outstanding cycling performance after 10,000 cycles (79.2% of the initial value). Meanwhile, a typical asymmetric supercapacitor (ASC) device based on [email protected]2S4@CoS2/NF as the cathode and AC as the anode ([email protected]2S4@CoS2/NF//AC) achieves a maximum energy density of 52.46 Wh kg−1 with the power density of 750.02 W kg−1. Moreover, the device maintains the cycle stability of 88.2% after 10,000 cycles, demonstrating that [email protected]2S4@CoS2/NF could be a potential electroactive material in advanced energy storage systems.
TL;DR: In this article, the UV/chloramine photolysis process has been thoroughly reviewed in real-world practice, emphasizing the need for extensive efforts to remove currently prevalent knowledge roadblocks.
TL;DR: In this paper, the authors combine short-term and long-term studies to quantify the internal P loading and P release potential in the sediments of Lake Chaohu and explore their controlling mechanisms.
TL;DR: In this paper, a topology optimization approach for designing quantum spin Hall effect-based second-order phononic topological insulators (SPTIs) was developed, by simultaneously maximizing the powers emitted by the artificially selected body forces via topological optimization, the dipolar and quadrupolar modes are excited at the desirable frequencies.